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Category:CORRESPONDENCE-LETTERS
MONTHYEARIR 05000412/19990071999-10-21021 October 1999
Refers to Special Team Insp 50-412/99-07 Conducted from 990720-29 & Forwards Nov.Two Violations Identified.First Violation Involved Failure to Implement C/A to Prevent Biofouling of Service Water System
ML20217M1591999-10-19019 October 1999
Forwards NRC Rept Number 17, Requal Tracking Rept from Operator Licensing Tracking Sys.Rept Was Used by NRC to Schedule Requalification Exam for Operators & Record Requal Pass Dates
L-99-143, Informs That Subsequent Review of Approval Ltrs & SE for Relief Requests 1TYP-2-B5.40-1 (Rev 0),BV1-RV-AUG (Rev 1), BV2-RV-AUG (Rev 1),BV3-IWA-1 (Rev 1) & BV3-IWA-2 (Rev 1) Identified Erroneous Statements Which Dl Wishes to Correct1999-10-11011 October 1999
Informs That Subsequent Review of Approval Ltrs & SE for Relief Requests 1TYP-2-B5.40-1 (Rev 0),BV1-RV-AUG (Rev 1), BV2-RV-AUG (Rev 1),BV3-IWA-1 (Rev 1) & BV3-IWA-2 (Rev 1) Identified Erroneous Statements Which Dl Wishes to Correct
L-99-152, Submits Relief Request BV3-N-533-1,rev 0,requesting Use of ASME Approved Code Case N-553-1, Alternative Requirements for VT-2 Visual Examination of Class 1,2 & 3 Insulated Pressure Retaining Bolted Connections1999-10-11011 October 1999
Submits Relief Request BV3-N-533-1,rev 0,requesting Use of ASME Approved Code Case N-553-1, Alternative Requirements for VT-2 Visual Examination of Class 1,2 & 3 Insulated Pressure Retaining Bolted Connections
ML20217C6741999-10-0808 October 1999
Forwards RAI Re Licensee 970128 Response to GL 96-06, Assurance of Equipment Operability & Containment Integrity During Design-Basis Accident Conditions, . Response Requested within 60 Days of Receipt of Ltr
L-99-151, Responds to NRC Re Violations Noted in Insp Rept 50-412/99-07.Corrective Actions:Condition Repts Were Written for Listed Issues So That Repts Could Be Addressed Using BVPS Corrective Action Program1999-10-0707 October 1999
Responds to NRC Re Violations Noted in Insp Rept 50-412/99-07.Corrective Actions:Condition Repts Were Written for Listed Issues So That Repts Could Be Addressed Using BVPS Corrective Action Program
ML20217E0301999-10-0707 October 1999
Forwards Insp Repts 50-334/99-06 & 50-412/99-06 on 990809-13 & 990823-27.Violation Noted Involving Failure to Correctly Translate Design Change Re Pertinent Operating Logs & Plant Equipment Labeling
ML20212M2661999-09-30030 September 1999
Forwards Order Approving Transfer of Licenses for Beaver Valley from Dlc to Pennsylvania Power Co & Approving Conforming Amends in Response to 990505 Application
ML20212K8071999-09-30030 September 1999
Informs That on 990916,NRC Staff Completed mid-cycle Plant Performance Review (PPR) of Facility.Staff Conducted Reviews of All Operating NPPs to Integrate Performance Info & to Plan for Insp Activities at Facility
ML20216J9621999-09-30030 September 1999
Forwards Insp Repts 50-334/99-05 & 50-412/99-05 on 990725-0904.Two Violations Noted & Being Treated as Ncvs.One Violation Re Failure to Follow Operation Manual Procedure Associated with Configuration Control Identified
L-99-149, Informs NRC That Items Identified in 990629 Response to GL 98-01 Have Been Completed.Attached Table Submitted with Has Been Updated to Reflect Completion1999-09-28028 September 1999
Informs NRC That Items Identified in 990629 Response to GL 98-01 Have Been Completed.Attached Table Submitted with Has Been Updated to Reflect Completion
L-99-148, Notifies NRC of License Withdrawal of M Linch,License SOP-11478 IAW 10CFR50.74.M Linch Resigned from Employment at Bvps,Effective 9908171999-09-24024 September 1999
Notifies NRC of License Withdrawal of M Linch,License SOP-11478 IAW 10CFR50.74.M Linch Resigned from Employment at Bvps,Effective 990817
ML20212G0601999-09-23023 September 1999
Forwards Answer of Duquesne Light Co to Petition to Waive Time Limits & Suppl Comments of Local 29, Intl Brotherhood of Electrical Workers.Copies of Answer Have Been Served to Parties & Petitioner by e-mail or Facsimile
ML20212C5521999-09-21021 September 1999
Forwards for Filing,Answer to Firstenergy Nuclear Operating Co & Pennsylvania Power Co in Opposition to Petition to Waive Time Limits & Suppl Comments of Local 29 Intl Brotherhood of Electrical Workers
L-99-144, Forwards NRC Form 536 Which Addresses Util Proposed Operator Licensing Exam Schedule,In Response to Administrative Ltr 99-031999-09-20020 September 1999
Forwards NRC Form 536 Which Addresses Util Proposed Operator Licensing Exam Schedule,In Response to Administrative Ltr 99-03
ML20212B3291999-09-16016 September 1999
Forwards for Filing,Petition to Waive Time Limits in 10CFR2.1305 & Supplemental Comments of Local 29,Intl Brotherhood of Electrical Workers Re Beaver Valley Power Station,Units 1 & 2
L-99-134, Provides Addl Info to Support 990617 LAR 127,proposing Mods to Heatup,Cooldown & Overpressure Protection Curves.Info Is Provided to Formally Docket Info Discussed During 990820 Telcon with NRC1999-09-15015 September 1999
Provides Addl Info to Support 990617 LAR 127,proposing Mods to Heatup,Cooldown & Overpressure Protection Curves.Info Is Provided to Formally Docket Info Discussed During 990820 Telcon with NRC
ML20211Q3431999-09-0808 September 1999
Informs That During 990903 Telcon Between L Briggs & T Kuhar,Arrangements Were Made for NRC to Inspect Licensed Operator Requalification Program at Plant,Unit 1.Insp Planned for Wk of 991115
ML20211Q5601999-09-0707 September 1999
Forwards Insp Rept 50-412/99-07 on 990720-29.Three Apparent Violations Noted & Being Considered for Escalated Ea. Violations Involve Failure to Implement C/As to Prevent bio- Fouling of Svc Water Sys
L-99-138, Forwards Rev 37 to Issue 4 for BVPS Physical Security Plan (PSP) (Base Plan,Safeguards Contingency Plan & Training & Qualification Plan).Changes to Plan Are Listed.Encls Withheld Per 10CFR2.790(d)1999-09-0303 September 1999
Forwards Rev 37 to Issue 4 for BVPS Physical Security Plan (PSP) (Base Plan,Safeguards Contingency Plan & Training & Qualification Plan).Changes to Plan Are Listed.Encls Withheld Per 10CFR2.790(d)
L-99-136, Forwards Data Point Library (Dpl) Changes,Iaw Provisions of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6, Administrative Implementation Requirements. Ten Listed Dpls Have Specific Setpoint Values Removed,Per Unit 2 Dpls1999-09-0202 September 1999
Forwards Data Point Library (Dpl) Changes,Iaw Provisions of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6, Administrative Implementation Requirements. Ten Listed Dpls Have Specific Setpoint Values Removed,Per Unit 2 Dpls
L-99-098, Forwards Proposed Changes to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Change Would Reduce Operations QA Program Description Commitments by Limiting Required Onsite Safety Committee Reviews of Mods1999-09-0202 September 1999
Forwards Proposed Changes to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Change Would Reduce Operations QA Program Description Commitments by Limiting Required Onsite Safety Committee Reviews of Mods
L-99-137, Forwards Issue 3,rev 3 to Bvps,Unit 1 Inservice Testing Program for Pumps & Valves. Encl 1 Provides Summary of IST Program Changes Which Have Been Incorporated Into Issue 3, Rev 31999-08-31031 August 1999
Forwards Issue 3,rev 3 to Bvps,Unit 1 Inservice Testing Program for Pumps & Valves. Encl 1 Provides Summary of IST Program Changes Which Have Been Incorporated Into Issue 3, Rev 3
L-99-022, Forwards Issue 2,Rev 1 to Bvps,Unit 2 Inservice Testing (IST) Program for Pumps & Valves. Summary of Changes,Encl1999-08-31031 August 1999
Forwards Issue 2,Rev 1 to Bvps,Unit 2 Inservice Testing (IST) Program for Pumps & Valves. Summary of Changes,Encl
L-99-012, Forwards Proposed Change to Bvps,Units 1 & 2,operations QA Program Description,Per 10CFR50.54(a)(3)(ii),including Description of Proposed Change,Reason for Change & Basis for Concluding Revised Program Satisfy 10CFR50,App B1999-08-30030 August 1999
Forwards Proposed Change to Bvps,Units 1 & 2,operations QA Program Description,Per 10CFR50.54(a)(3)(ii),including Description of Proposed Change,Reason for Change & Basis for Concluding Revised Program Satisfy 10CFR50,App B
L-99-037, Forwards Proposed Change to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Attachment 1 Further Describes Proposed Change & Identifies Reason for Change1999-08-30030 August 1999
Forwards Proposed Change to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Attachment 1 Further Describes Proposed Change & Identifies Reason for Change
L-99-132, Forwards fitness-for-duty Program Six Month Rept for 990101-990630 for Bvps,Units 1 & 21999-08-26026 August 1999
Forwards fitness-for-duty Program Six Month Rept for 990101-990630 for Bvps,Units 1 & 2
05000412/LER-1999-007, Forwards LER 99-007-00, Forced Shutdown Due to Inoperable EDG, Per 10CFR50.73(a)(2)(i).Rept Is Delayed Due to Util Needing Addl Three Days to Address Event Issues on Reportability & Provide Addl Safety Implications Info1999-08-19019 August 1999
Forwards LER 99-007-00, Forced Shutdown Due to Inoperable EDG, Per 10CFR50.73(a)(2)(i).Rept Is Delayed Due to Util Needing Addl Three Days to Address Event Issues on Reportability & Provide Addl Safety Implications Info
ML20211A5111999-08-18018 August 1999
Forwards Insp Repts 50-334/99-04 & 50-412/99-04 on 990613- 990724.One Violation Noted & Treated as Non-Cited Violation Involved Failure to Maintain Containment Equipment Hatch Closed During Fuel Movement
L-99-127, Provides Response to NRC Ltr Requesting Review & Comment of NRC Reactor Vessel Structural Integrity Database by 990901.Inconsistencies Noted in Way Data Characterizes Condition of Reactor Vessel1999-08-17017 August 1999
Provides Response to NRC Ltr Requesting Review & Comment of NRC Reactor Vessel Structural Integrity Database by 990901.Inconsistencies Noted in Way Data Characterizes Condition of Reactor Vessel
L-99-124, Requests Withdrawal of Editorial Changes That Do Not Pertain to Transfer of Operating Authority or Plant Ownership That Are Proposed in LARs 269 & 144.Revised mark-up License Pages Reflecting Changes,Attached1999-07-30030 July 1999
Requests Withdrawal of Editorial Changes That Do Not Pertain to Transfer of Operating Authority or Plant Ownership That Are Proposed in LARs 269 & 144.Revised mark-up License Pages Reflecting Changes,Attached
L-99-121, Submits Data Point Library (Dpl) Changes,Iaw Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,rev 1,Section 3.6, Administrative Implementation Reqiurements1999-07-28028 July 1999
Submits Data Point Library (Dpl) Changes,Iaw Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,rev 1,Section 3.6, Administrative Implementation Reqiurements
L-99-118, Forwards Response to NRC AL 99-02,request for Info Re Estimate of Number of New Licensing Actions Expected to Be Submitted in Fy 2000 & 20011999-07-25025 July 1999
Forwards Response to NRC AL 99-02,request for Info Re Estimate of Number of New Licensing Actions Expected to Be Submitted in Fy 2000 & 2001
L-99-120, Forwards Annual Rept of Facility Changes,Tests & Experiments for BVPS Unit 1,IAW 10CFR50.59.Rept Provides Brief Description of Each Facility & Procedure Change & Summary of Safety Evaluations1999-07-22022 July 1999
Forwards Annual Rept of Facility Changes,Tests & Experiments for BVPS Unit 1,IAW 10CFR50.59.Rept Provides Brief Description of Each Facility & Procedure Change & Summary of Safety Evaluations
L-99-119, Forwards Rev 17 to UFSAR for Beaver Power Station,Unit 1. Submittal Reflects Changes to Facility & Procedures as Described in UFSAR That Were Completed During Annual Reporting Period Endinig 9901221999-07-20020 July 1999
Forwards Rev 17 to UFSAR for Beaver Power Station,Unit 1. Submittal Reflects Changes to Facility & Procedures as Described in UFSAR That Were Completed During Annual Reporting Period Endinig 990122
L-99-113, Forwards Final,Typed TS Pages for LARs 262 & 135,previously Submitted with Editorial Changes Identified by1999-07-15015 July 1999
Forwards Final,Typed TS Pages for LARs 262 & 135,previously Submitted with Editorial Changes Identified by
L-99-111, Forwards Revised Final Typed Pages for LARs 109 & 115, Previously Submitted by 990615 & 28 Ltrs.Revised Pages Replace Those Previously Provided for LARs 109 & 115.With Summary of Editorial Changes1999-07-15015 July 1999
Forwards Revised Final Typed Pages for LARs 109 & 115, Previously Submitted by 990615 & 28 Ltrs.Revised Pages Replace Those Previously Provided for LARs 109 & 115.With Summary of Editorial Changes
L-99-112, Responds to NRC Questions Made During 990518 Meeting with Util Re LARs 220 & 88,for Bvps,Units 1 & 2.Copy of Ltr DLC-99-743,which Is non-proprietary Version of DLC-96-310 & Westinghouse Technical Bulletin ESBU-TB-96-07-R0 Also Encl1999-07-14014 July 1999
Responds to NRC Questions Made During 990518 Meeting with Util Re LARs 220 & 88,for Bvps,Units 1 & 2.Copy of Ltr DLC-99-743,which Is non-proprietary Version of DLC-96-310 & Westinghouse Technical Bulletin ESBU-TB-96-07-R0 Also Encl
L-99-110, Forwards Changes to ERDS for Unit 1,IAW Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.61999-07-14014 July 1999
Forwards Changes to ERDS for Unit 1,IAW Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6
ML20209G5701999-07-12012 July 1999
Discusses Closure of TACs MA0525 & MA0526 Re Response to RAI Concerning GL 92-0,Rev 1,Suppl 1, Rv Structural Integrity. Info in Rvid Revised & Released as Ver 2 as Result of Review of Response
ML20207H6621999-07-0808 July 1999
Forwards RAI Re Util 981112 Response to IPEEE Evaluations for Plant,Units 1 & 2.RAI Was Discussed During 990628 Telcon in Order to Ensure Clear Consistent Understanding by All Parties of Info Needed
L-99-105, Forwards Response to NRC 990420 RAI Re Previous Responses to GL 95-07, Pressure Locking & Thermal Binding of SR Power-Operated Gate Valves1999-07-0808 July 1999
Forwards Response to NRC 990420 RAI Re Previous Responses to GL 95-07, Pressure Locking & Thermal Binding of SR Power-Operated Gate Valves
ML20209D8191999-07-0707 July 1999
Forwards Insp Repts 50-334/99-03 & 50-412/99-03 on 990502- 0612.No Violations Noted.Program for Maintaining Occupational Exposures as Low as Reasonably Achievable (ALARA) & for Training Personnel,Generally Effective
L-99-109, Forwards Inservice Insp Ninety-Day Rept Bvps,Unit 2 Outage 7,Year 1999, IAW ASME Boiler & Pressure Vessel Code,Section Xi,Article IWA-62301999-07-0707 July 1999
Forwards Inservice Insp Ninety-Day Rept Bvps,Unit 2 Outage 7,Year 1999, IAW ASME Boiler & Pressure Vessel Code,Section Xi,Article IWA-6230
L-99-108, Requests Withdrawal of Change Proposed for TS Bases Page B 3/4 2-2 from LARs 1A-262 & 2A-135,originally Submitted by Licensee to NRC1999-07-0707 July 1999
Requests Withdrawal of Change Proposed for TS Bases Page B 3/4 2-2 from LARs 1A-262 & 2A-135,originally Submitted by Licensee to NRC
L-99-104, Responds to GL 98-01,Suppl 1, Y2K Readiness at Nuclear Power Plants. Disclosure Rept Encl1999-06-29029 June 1999
Responds to GL 98-01,Suppl 1, Y2K Readiness at Nuclear Power Plants. Disclosure Rept Encl
L-99-093, Provides Response to RAI on Proposed Change to Operations QA Program Description.Attachment 2 Provides Revised Markup for Proposed Changes to Affected UFSAR Section 17.2.51999-06-25025 June 1999
Provides Response to RAI on Proposed Change to Operations QA Program Description.Attachment 2 Provides Revised Markup for Proposed Changes to Affected UFSAR Section 17.2.5
L-99-102, Forwards Typed,Final TS Pages for LARs 259 & 131.Summary of Description of Plant Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages,Encl1999-06-22022 June 1999
Forwards Typed,Final TS Pages for LARs 259 & 131.Summary of Description of Plant Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages,Encl
L-99-101, Submits Response to NRC Oral RAI Concerning Qualifications for Senior Nuclear Executive Ref in 10CFR50.80 Submittal1999-06-22022 June 1999
Submits Response to NRC Oral RAI Concerning Qualifications for Senior Nuclear Executive Ref in 10CFR50.80 Submittal
L-99-062, Forwards Final TS Pages for LARs 262 & 135,including Summary Description of Plants Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages1999-06-17017 June 1999
Forwards Final TS Pages for LARs 262 & 135,including Summary Description of Plants Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages
1999-09-08
[Table view]
Category:INCOMING CORRESPONDENCE
MONTHYEARL-99-152, Submits Relief Request BV3-N-533-1,rev 0,requesting Use of ASME Approved Code Case N-553-1, Alternative Requirements for VT-2 Visual Examination of Class 1,2 & 3 Insulated Pressure Retaining Bolted Connections1999-10-11011 October 1999
Submits Relief Request BV3-N-533-1,rev 0,requesting Use of ASME Approved Code Case N-553-1, Alternative Requirements for VT-2 Visual Examination of Class 1,2 & 3 Insulated Pressure Retaining Bolted Connections
L-99-143, Informs That Subsequent Review of Approval Ltrs & SE for Relief Requests 1TYP-2-B5.40-1 (Rev 0),BV1-RV-AUG (Rev 1), BV2-RV-AUG (Rev 1),BV3-IWA-1 (Rev 1) & BV3-IWA-2 (Rev 1) Identified Erroneous Statements Which Dl Wishes to Correct1999-10-11011 October 1999
Informs That Subsequent Review of Approval Ltrs & SE for Relief Requests 1TYP-2-B5.40-1 (Rev 0),BV1-RV-AUG (Rev 1), BV2-RV-AUG (Rev 1),BV3-IWA-1 (Rev 1) & BV3-IWA-2 (Rev 1) Identified Erroneous Statements Which Dl Wishes to Correct
L-99-151, Responds to NRC Re Violations Noted in Insp Rept 50-412/99-07.Corrective Actions:Condition Repts Were Written for Listed Issues So That Repts Could Be Addressed Using BVPS Corrective Action Program1999-10-0707 October 1999
Responds to NRC Re Violations Noted in Insp Rept 50-412/99-07.Corrective Actions:Condition Repts Were Written for Listed Issues So That Repts Could Be Addressed Using BVPS Corrective Action Program
L-99-149, Informs NRC That Items Identified in 990629 Response to GL 98-01 Have Been Completed.Attached Table Submitted with Has Been Updated to Reflect Completion1999-09-28028 September 1999
Informs NRC That Items Identified in 990629 Response to GL 98-01 Have Been Completed.Attached Table Submitted with Has Been Updated to Reflect Completion
L-99-148, Notifies NRC of License Withdrawal of M Linch,License SOP-11478 IAW 10CFR50.74.M Linch Resigned from Employment at Bvps,Effective 9908171999-09-24024 September 1999
Notifies NRC of License Withdrawal of M Linch,License SOP-11478 IAW 10CFR50.74.M Linch Resigned from Employment at Bvps,Effective 990817
ML20212G0601999-09-23023 September 1999
Forwards Answer of Duquesne Light Co to Petition to Waive Time Limits & Suppl Comments of Local 29, Intl Brotherhood of Electrical Workers.Copies of Answer Have Been Served to Parties & Petitioner by e-mail or Facsimile
ML20212C5521999-09-21021 September 1999
Forwards for Filing,Answer to Firstenergy Nuclear Operating Co & Pennsylvania Power Co in Opposition to Petition to Waive Time Limits & Suppl Comments of Local 29 Intl Brotherhood of Electrical Workers
L-99-144, Forwards NRC Form 536 Which Addresses Util Proposed Operator Licensing Exam Schedule,In Response to Administrative Ltr 99-031999-09-20020 September 1999
Forwards NRC Form 536 Which Addresses Util Proposed Operator Licensing Exam Schedule,In Response to Administrative Ltr 99-03
ML20212B3291999-09-16016 September 1999
Forwards for Filing,Petition to Waive Time Limits in 10CFR2.1305 & Supplemental Comments of Local 29,Intl Brotherhood of Electrical Workers Re Beaver Valley Power Station,Units 1 & 2
L-99-134, Provides Addl Info to Support 990617 LAR 127,proposing Mods to Heatup,Cooldown & Overpressure Protection Curves.Info Is Provided to Formally Docket Info Discussed During 990820 Telcon with NRC1999-09-15015 September 1999
Provides Addl Info to Support 990617 LAR 127,proposing Mods to Heatup,Cooldown & Overpressure Protection Curves.Info Is Provided to Formally Docket Info Discussed During 990820 Telcon with NRC
L-99-138, Forwards Rev 37 to Issue 4 for BVPS Physical Security Plan (PSP) (Base Plan,Safeguards Contingency Plan & Training & Qualification Plan).Changes to Plan Are Listed.Encls Withheld Per 10CFR2.790(d)1999-09-0303 September 1999
Forwards Rev 37 to Issue 4 for BVPS Physical Security Plan (PSP) (Base Plan,Safeguards Contingency Plan & Training & Qualification Plan).Changes to Plan Are Listed.Encls Withheld Per 10CFR2.790(d)
L-99-136, Forwards Data Point Library (Dpl) Changes,Iaw Provisions of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6, Administrative Implementation Requirements. Ten Listed Dpls Have Specific Setpoint Values Removed,Per Unit 2 Dpls1999-09-0202 September 1999
Forwards Data Point Library (Dpl) Changes,Iaw Provisions of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6, Administrative Implementation Requirements. Ten Listed Dpls Have Specific Setpoint Values Removed,Per Unit 2 Dpls
L-99-098, Forwards Proposed Changes to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Change Would Reduce Operations QA Program Description Commitments by Limiting Required Onsite Safety Committee Reviews of Mods1999-09-0202 September 1999
Forwards Proposed Changes to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Change Would Reduce Operations QA Program Description Commitments by Limiting Required Onsite Safety Committee Reviews of Mods
L-99-137, Forwards Issue 3,rev 3 to Bvps,Unit 1 Inservice Testing Program for Pumps & Valves. Encl 1 Provides Summary of IST Program Changes Which Have Been Incorporated Into Issue 3, Rev 31999-08-31031 August 1999
Forwards Issue 3,rev 3 to Bvps,Unit 1 Inservice Testing Program for Pumps & Valves. Encl 1 Provides Summary of IST Program Changes Which Have Been Incorporated Into Issue 3, Rev 3
L-99-022, Forwards Issue 2,Rev 1 to Bvps,Unit 2 Inservice Testing (IST) Program for Pumps & Valves. Summary of Changes,Encl1999-08-31031 August 1999
Forwards Issue 2,Rev 1 to Bvps,Unit 2 Inservice Testing (IST) Program for Pumps & Valves. Summary of Changes,Encl
L-99-037, Forwards Proposed Change to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Attachment 1 Further Describes Proposed Change & Identifies Reason for Change1999-08-30030 August 1999
Forwards Proposed Change to Bvps,Units 1 & 2 Operations QA Program Description,Iaw 10CFR50.54(a)(3)(ii).Attachment 1 Further Describes Proposed Change & Identifies Reason for Change
L-99-012, Forwards Proposed Change to Bvps,Units 1 & 2,operations QA Program Description,Per 10CFR50.54(a)(3)(ii),including Description of Proposed Change,Reason for Change & Basis for Concluding Revised Program Satisfy 10CFR50,App B1999-08-30030 August 1999
Forwards Proposed Change to Bvps,Units 1 & 2,operations QA Program Description,Per 10CFR50.54(a)(3)(ii),including Description of Proposed Change,Reason for Change & Basis for Concluding Revised Program Satisfy 10CFR50,App B
L-99-132, Forwards fitness-for-duty Program Six Month Rept for 990101-990630 for Bvps,Units 1 & 21999-08-26026 August 1999
Forwards fitness-for-duty Program Six Month Rept for 990101-990630 for Bvps,Units 1 & 2
05000412/LER-1999-007, Forwards LER 99-007-00, Forced Shutdown Due to Inoperable EDG, Per 10CFR50.73(a)(2)(i).Rept Is Delayed Due to Util Needing Addl Three Days to Address Event Issues on Reportability & Provide Addl Safety Implications Info1999-08-19019 August 1999
Forwards LER 99-007-00, Forced Shutdown Due to Inoperable EDG, Per 10CFR50.73(a)(2)(i).Rept Is Delayed Due to Util Needing Addl Three Days to Address Event Issues on Reportability & Provide Addl Safety Implications Info
L-99-127, Provides Response to NRC Ltr Requesting Review & Comment of NRC Reactor Vessel Structural Integrity Database by 990901.Inconsistencies Noted in Way Data Characterizes Condition of Reactor Vessel1999-08-17017 August 1999
Provides Response to NRC Ltr Requesting Review & Comment of NRC Reactor Vessel Structural Integrity Database by 990901.Inconsistencies Noted in Way Data Characterizes Condition of Reactor Vessel
L-99-124, Requests Withdrawal of Editorial Changes That Do Not Pertain to Transfer of Operating Authority or Plant Ownership That Are Proposed in LARs 269 & 144.Revised mark-up License Pages Reflecting Changes,Attached1999-07-30030 July 1999
Requests Withdrawal of Editorial Changes That Do Not Pertain to Transfer of Operating Authority or Plant Ownership That Are Proposed in LARs 269 & 144.Revised mark-up License Pages Reflecting Changes,Attached
L-99-121, Submits Data Point Library (Dpl) Changes,Iaw Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,rev 1,Section 3.6, Administrative Implementation Reqiurements1999-07-28028 July 1999
Submits Data Point Library (Dpl) Changes,Iaw Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,rev 1,Section 3.6, Administrative Implementation Reqiurements
L-99-118, Forwards Response to NRC AL 99-02,request for Info Re Estimate of Number of New Licensing Actions Expected to Be Submitted in Fy 2000 & 20011999-07-25025 July 1999
Forwards Response to NRC AL 99-02,request for Info Re Estimate of Number of New Licensing Actions Expected to Be Submitted in Fy 2000 & 2001
L-99-120, Forwards Annual Rept of Facility Changes,Tests & Experiments for BVPS Unit 1,IAW 10CFR50.59.Rept Provides Brief Description of Each Facility & Procedure Change & Summary of Safety Evaluations1999-07-22022 July 1999
Forwards Annual Rept of Facility Changes,Tests & Experiments for BVPS Unit 1,IAW 10CFR50.59.Rept Provides Brief Description of Each Facility & Procedure Change & Summary of Safety Evaluations
L-99-119, Forwards Rev 17 to UFSAR for Beaver Power Station,Unit 1. Submittal Reflects Changes to Facility & Procedures as Described in UFSAR That Were Completed During Annual Reporting Period Endinig 9901221999-07-20020 July 1999
Forwards Rev 17 to UFSAR for Beaver Power Station,Unit 1. Submittal Reflects Changes to Facility & Procedures as Described in UFSAR That Were Completed During Annual Reporting Period Endinig 990122
L-99-111, Forwards Revised Final Typed Pages for LARs 109 & 115, Previously Submitted by 990615 & 28 Ltrs.Revised Pages Replace Those Previously Provided for LARs 109 & 115.With Summary of Editorial Changes1999-07-15015 July 1999
Forwards Revised Final Typed Pages for LARs 109 & 115, Previously Submitted by 990615 & 28 Ltrs.Revised Pages Replace Those Previously Provided for LARs 109 & 115.With Summary of Editorial Changes
L-99-113, Forwards Final,Typed TS Pages for LARs 262 & 135,previously Submitted with Editorial Changes Identified by1999-07-15015 July 1999
Forwards Final,Typed TS Pages for LARs 262 & 135,previously Submitted with Editorial Changes Identified by
L-99-112, Responds to NRC Questions Made During 990518 Meeting with Util Re LARs 220 & 88,for Bvps,Units 1 & 2.Copy of Ltr DLC-99-743,which Is non-proprietary Version of DLC-96-310 & Westinghouse Technical Bulletin ESBU-TB-96-07-R0 Also Encl1999-07-14014 July 1999
Responds to NRC Questions Made During 990518 Meeting with Util Re LARs 220 & 88,for Bvps,Units 1 & 2.Copy of Ltr DLC-99-743,which Is non-proprietary Version of DLC-96-310 & Westinghouse Technical Bulletin ESBU-TB-96-07-R0 Also Encl
L-99-110, Forwards Changes to ERDS for Unit 1,IAW Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.61999-07-14014 July 1999
Forwards Changes to ERDS for Unit 1,IAW Requirements of 10CFR50,App E,Section VI.3.a & NUREG-1394,Rev 1,Section 3.6
L-99-105, Forwards Response to NRC 990420 RAI Re Previous Responses to GL 95-07, Pressure Locking & Thermal Binding of SR Power-Operated Gate Valves1999-07-0808 July 1999
Forwards Response to NRC 990420 RAI Re Previous Responses to GL 95-07, Pressure Locking & Thermal Binding of SR Power-Operated Gate Valves
L-99-108, Requests Withdrawal of Change Proposed for TS Bases Page B 3/4 2-2 from LARs 1A-262 & 2A-135,originally Submitted by Licensee to NRC1999-07-0707 July 1999
Requests Withdrawal of Change Proposed for TS Bases Page B 3/4 2-2 from LARs 1A-262 & 2A-135,originally Submitted by Licensee to NRC
L-99-109, Forwards Inservice Insp Ninety-Day Rept Bvps,Unit 2 Outage 7,Year 1999, IAW ASME Boiler & Pressure Vessel Code,Section Xi,Article IWA-62301999-07-0707 July 1999
Forwards Inservice Insp Ninety-Day Rept Bvps,Unit 2 Outage 7,Year 1999, IAW ASME Boiler & Pressure Vessel Code,Section Xi,Article IWA-6230
L-99-104, Responds to GL 98-01,Suppl 1, Y2K Readiness at Nuclear Power Plants. Disclosure Rept Encl1999-06-29029 June 1999
Responds to GL 98-01,Suppl 1, Y2K Readiness at Nuclear Power Plants. Disclosure Rept Encl
L-99-093, Provides Response to RAI on Proposed Change to Operations QA Program Description.Attachment 2 Provides Revised Markup for Proposed Changes to Affected UFSAR Section 17.2.51999-06-25025 June 1999
Provides Response to RAI on Proposed Change to Operations QA Program Description.Attachment 2 Provides Revised Markup for Proposed Changes to Affected UFSAR Section 17.2.5
L-99-102, Forwards Typed,Final TS Pages for LARs 259 & 131.Summary of Description of Plant Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages,Encl1999-06-22022 June 1999
Forwards Typed,Final TS Pages for LARs 259 & 131.Summary of Description of Plant Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages,Encl
L-99-101, Submits Response to NRC Oral RAI Concerning Qualifications for Senior Nuclear Executive Ref in 10CFR50.80 Submittal1999-06-22022 June 1999
Submits Response to NRC Oral RAI Concerning Qualifications for Senior Nuclear Executive Ref in 10CFR50.80 Submittal
L-99-062, Forwards Final TS Pages for LARs 262 & 135,including Summary Description of Plants Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages1999-06-17017 June 1999
Forwards Final TS Pages for LARs 262 & 135,including Summary Description of Plants Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages
ML20196A6601999-06-16016 June 1999
Forwards Master Decommissioning Trust Agreements Revised After 1990 for Ohio Edison Co,Cleveland Electric Illuminating Co,Toledo Edison Co & Pennsylvania Power Co Re Bvnps,Units 1 & 2,DBNPS,Unit 1 & Perry Unit 1
ML20195H4651999-06-16016 June 1999
Forwards for Filing Answer of Firstenergy Corp in Opposition to Petition for Leave to Intervene of Local 29, Intl Brotherhood of Electrical Workers. Copies of Answer Have Been Served Upon Parties & Petitioner by e-mail
ML20195J5221999-06-16016 June 1999
Forwards Answer of Duquesne Light Co to Petition to Intervene of Local 29,International Brotherhood of Electrical Workers in Listed Matter.With Certificate of Svc
L-99-100, Forwards Typed,Final TS Pages for LAR 109 Re Rcs.Summary Description of Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages Is Provided in Attachment B-1091999-06-15015 June 1999
Forwards Typed,Final TS Pages for LAR 109 Re Rcs.Summary Description of Editorial Changes Incorporated in Addition to Those Addressed in Previously Provided marked-up Pages Is Provided in Attachment B-109
L-99-095, Provides Addl Info to Support LARs 262 & 135,in Response to NRC 990527 Verbal Request.Info Describes Performance of Unit 1 Rod Position Indication Sys & Provides Some Background Info Re Normal Operation of Sys1999-06-15015 June 1999
Provides Addl Info to Support LARs 262 & 135,in Response to NRC 990527 Verbal Request.Info Describes Performance of Unit 1 Rod Position Indication Sys & Provides Some Background Info Re Normal Operation of Sys
L-99-099, Requests Partial Withdrawal of LAR 120,which Requested Review of USQ Due to Increased Calculated Doses for Locked Rotor Event & Use of Unapproved Methodology for Evaluating Small Break LOCA Doses Involving W Natl Safety Advisory Ltr1999-06-14014 June 1999
Requests Partial Withdrawal of LAR 120,which Requested Review of USQ Due to Increased Calculated Doses for Locked Rotor Event & Use of Unapproved Methodology for Evaluating Small Break LOCA Doses Involving W Natl Safety Advisory Ltr
ML20195H3731999-06-0303 June 1999
Forwards Petition to Intervene of Local 29,Intl Brotherhood of Electrical Workers in Matter of Firstenergy Nuclear Operating Co,For Filing
L-99-090, Forwards Summary Review Completed to Verify Adequacy of Design Basis Accident Thermal Overpressure Protection for BVPS Unit 2 Containment Penetrations,Per Request1999-06-0202 June 1999
Forwards Summary Review Completed to Verify Adequacy of Design Basis Accident Thermal Overpressure Protection for BVPS Unit 2 Containment Penetrations,Per Request
L-99-086, Forwards Bvps,Unit 2 SG Exam Rept for Aug 1998.Rept Provided to Document Results of SG Eddy Current Exams Performed in Aug 1998.Summary of Insps Provided in Encl 11999-05-28028 May 1999
Forwards Bvps,Unit 2 SG Exam Rept for Aug 1998.Rept Provided to Document Results of SG Eddy Current Exams Performed in Aug 1998.Summary of Insps Provided in Encl 1
L-99-089, Forwards Annual Financial Repts,Including Certified Financial Statements,Of Dqe,Firstenergy Corp,Ohio Edison Co,Pennsylvania Power Co,Cleveland Electric Illuminating Co & Toledo Edison Co,Iaw 10CFR50.71(b)1999-05-28028 May 1999
Forwards Annual Financial Repts,Including Certified Financial Statements,Of Dqe,Firstenergy Corp,Ohio Edison Co,Pennsylvania Power Co,Cleveland Electric Illuminating Co & Toledo Edison Co,Iaw 10CFR50.71(b)
L-99-084, Forwards Revised marked-up TS & UFSAR Pages to 990303 LARs 259 & 131 Which Revised Qualifications for Operations Mgt & Incorporated Generic Position Titles in Ts.Encl Pages Incorporate NRC Requested Changes,Per Recent Telcon1999-05-27027 May 1999
Forwards Revised marked-up TS & UFSAR Pages to 990303 LARs 259 & 131 Which Revised Qualifications for Operations Mgt & Incorporated Generic Position Titles in Ts.Encl Pages Incorporate NRC Requested Changes,Per Recent Telcon
L-99-082, Dockets Licensee Plan for Bvps,Unit 1,safety-related Small Bore Piping Evaluation Project Discussed in NRC 990311 Public Meeting at BVPS1999-05-17017 May 1999
Dockets Licensee Plan for Bvps,Unit 1,safety-related Small Bore Piping Evaluation Project Discussed in NRC 990311 Public Meeting at BVPS
L-99-071, Notifies of License Withdrawal for J Scott,License SOP-11481,due to Resignation from Employment at BVPS1999-05-12012 May 1999
Notifies of License Withdrawal for J Scott,License SOP-11481,due to Resignation from Employment at BVPS
1999-09-03
[Table view]
Category:UTILITY TO NRC
MONTHYEARML20059L4271990-09-0707 September 1990
Requests Approval for Use of Steam Generator Tube Plugs for Both Mechanical & Welded Applications
ML20059G0821990-09-0404 September 1990
Forwards Application for Amend to License DPR-66,consisting of License Change Request 180,changing Section 3.3.3.2 to Reduce Required Number of Operable Incore Detector Thimbles for Remainder of Cycle 8
ML20059F7551990-08-29029 August 1990
Responds to Unresolved Item 50-334/90-16-01 Noted in Insp Rept 50-334/90-16.Corrective Actions:Initial Training for Maint Group Personnel Responsible for Maintaining Supplied Air Respirators Will Be Supplemented W/Biennial Retraining
ML20059F1501990-08-29029 August 1990
Advises That Permanent Replacement Chosen for Plant Independent Safety Evaluation Group.Position Will Be Staffed Effective 900829
ML20028G8731990-08-29029 August 1990
Forwards fitness-for-duty Program Performance Data for Jan-June 1990,per 10CFR26.71
ML20059D3761990-08-24024 August 1990
Describes Cycle 3 Reload Design,Documents Util Review Per 10CFR50.59 & Provides Determination That No Tech Spec Changes or Unreviewed Safety Questions Involved.Reload Core Design Will Not Adversely Affect Safety of Plant
ML20028G8881990-08-24024 August 1990
Withdraws Operator License SOP-10731 (55-60749) Issued to K Gilbert,Who Resigned
05000412/LER-1990-007, Responds to NRC Re Deviation 50-412/90-12-01 Noted in Insp Rept 50-412/90-12.Corrective Actions:Procedure OM 2.20-4.I Revised to Require Removal of Flanges Following Drain Operations & LER 90-007-00 Issued1990-08-23023 August 1990
Responds to NRC Re Deviation 50-412/90-12-01 Noted in Insp Rept 50-412/90-12.Corrective Actions:Procedure OM 2.20-4.I Revised to Require Removal of Flanges Following Drain Operations & LER 90-007-00 Issued
ML20058P7651990-08-14014 August 1990
Provides Info on Acceptability of Rescheduling Response to Reg Guide 1.97 Ser,Item 4b, Neutron Flux Monitoring Instrumentation. Rescheduling of Util Response Will Be Determined on or Shortly After Meeting W/Nrc
ML20059E0571990-08-10010 August 1990
Forwards Suppl 3 to Nonproprietary WCAP-12094 & Proprietary WCAP-12093, Evaluation of Pressurizer Surge Line Transients Exceeding 320 F for Beaver Valley Unit 2, for Review by 900901.Proprietary Rept Withheld (Ref 10CFR2.790(b)(4))
ML20059E7631990-08-0101 August 1990
Provides Results of Util Evaluation of Licensed Operator Requalification Exam Conducted During Wks of 900709 & 16. Crew That Failed to Meet Expected Performance Level Has Been Successfully Upgraded & re-evaluated to Be Satisfactory
ML20059B8141990-08-0101 August 1990
Requests Exemption from 10CFR26 Re Fitness for Duty Program & 10CFR73 Re Physical Protection of Plants & Matls Concerning Unescorted Access Requirements for Nuclear Generating Stations
ML20056A3471990-07-31031 July 1990
Responds to NRC Bulletin 90-001.Items 1 Through 5 of Requested Actions for Operating Reactors Completed
ML20056A1841990-07-27027 July 1990
Forwards Revised Methodology for Achieving Alternate Ac for Plant,Per 900720 Telcon
ML20055H2581990-07-25025 July 1990
Forwards Decommissioning Rept, Per 10CFR50.33(K) & 50.75(b)
ML20055F7061990-07-0909 July 1990
Responds to NRC Re Dcrdr Requirements as Specified in Suppl 1 to NUREG-0737.DCRDR Corrective Actions Implemented & Mods Determined to Be Operational Prior to Startup Following Seventh Plant Refueling Outage
ML20055D3871990-07-0202 July 1990
Provides Info Re long-term Solution to Action Item 3 of NRC Bulletin 88-008,per 890714 & s.Util Will Continue to Monitor Temp in Affected Lines & Evaluate Results
ML20058K5031990-06-29029 June 1990
Discusses Use of Emergency Diesel Generators as Alternate Ac Source at multi-unit Sites,Per Licensee .Emergency Diesel Generator Load Mgt Methodology Evaluated to Meet Listed Criteria
ML20044A3661990-06-21021 June 1990
Forwards Application for Amend to License NPF-73,consisting of Tech Spec Change Request 44,changing Stroke Time to 60 for Inside Containment Letdown Isolation Valves.Change Determined Safe & Involves No Unreviewed Safety Issue
ML20043G6811990-06-14014 June 1990
Forwards Application for Amends to Licenses DPR-66 & NPF-73, Revising Tech Specs Re Electrical Power Sys - Shutdown & Ac & Dc Distribution - Shutdown
ML20043H9341990-06-14014 June 1990
Forwards Issue 1 to Rev 4 to Inservice Testing Program for Pumps & Valves. Issue 1 Removes Relief Requests Requiring Prior NRC Approval & Adds Certain Program Changes Permitted by ASME XI & Generic Ltr 89-04
ML20043G5981990-06-12012 June 1990
Forwards Monthly Operating Repts for May 1990 for Beaver Valley Units 1 & 2 & Revised Rept for Apr 1990 for Beaver Valley Unit 1
ML20043G6851990-06-12012 June 1990
Forwards Application for Amend to License DPR-66,consisting of Proposed OL Change Request 176,revising Tech Specs to Replace Current Single Overpressure Protection Setpoint W/ Curve Based on Temp
ML20043G7941990-06-12012 June 1990
Responds to NRC 900524 Request for Addl Info Re Proposed Operating License Change Request 156.Clarification of Magnitude of Confidence Level of Westinghouse Setpoint Methodology,As Specified in WCAP-11419,encl
ML20043G8001990-06-11011 June 1990
Forwards Application for Amend to License NPF-73,consisting of Proposed Operating License Change Request 41.Amend Deletes Surveillance Requirement 4.4.9.3.1.d
ML20043H0291990-06-11011 June 1990
Forwards Application for Amend to License NPF-73,consisting of Proposed OL Change Request 40,modifying Heatup & Cooldown Curves Applicable to 10 EFPYs Per WCAP-12406 Re Analysis of Capsule U from Radiation Surveillance Program
ML20043F5251990-06-0707 June 1990
Requests Temporary Waiver of Compliance from Tech Spec Limiting Condition for Operation Re Operability of Containment Isolation Valves During Quarterly Slave Relay Testing.Evaluation to Support Request Encl
ML20043F1361990-06-0404 June 1990
Advises That Chemistry Manual Chapter 5P1, Enhanced Primary to Secondary Leakrate Monitoring Program for Unit 1,per 880328 Request to Recommit to Item C.1 of NRC Bulletin 88-002
ML20043B5971990-05-18018 May 1990
Advises of Delay in Hiring Independent Safety Evaluation Group Replacement to Maintain Five Permanent Personnel Onsite,Per Tech Spec 6.2.3.2.Replacement Will Be Provided within 30 Days of Retirement of Engineer on 900531
ML20043B0511990-05-15015 May 1990
Responds to Telcon Request for Addl Info Re Elimination of Snubbers on Primary Component Supports.Probability of Case B/G Event Extremely Small & Does Not Represent Realisitic Scenario
ML20043B1921990-05-11011 May 1990
Forwards Cycle 8 & Cycle 2 Core Operating Limits Rept,Per Tech Spec 6.9.1.14
ML20042G9761990-05-0808 May 1990
Responds to NRC 900226 Ltr Re Violations Noted in Insp Repts 50-334/89-80 & 50-412/89-80.Corrective Action:Maint Work Request Program Being Upgraded to Include Responsibilities of Nuclear Const Dept & Will Be Issued by 900601
ML20042G8541990-05-0303 May 1990
Forwards Technical Review,Audit Summary & Operability Assessments Re Potentially Invalid Leak Detection Tests Used as Alternative for Amse Section XI Hydrostatic Tests
ML20042G9071990-05-0101 May 1990
Forwards Annual Financial Repts for Duquense Light Co,Ohio Edison Co,Pennsylvania Power Co,Centerior Energy Corp & Toledo Edison Co,Per 10CFR50-71(b)
ML20042F1381990-04-30030 April 1990
Advises That Final SER for Implementation of USI A-46 Will Be Delayed Until Late 1990
ML20042F0991990-04-20020 April 1990
Forwards Response to Request for Addl Info Re Second 10 Yr ISI Program
ML20012F5951990-04-10010 April 1990
Forwards Monthly Operating Repts for Mar 1990 & Revised Operating Data Rept & Unit Shutdown & Power Reductions Sheets for Jan 1990
ML20042E1471990-04-0404 April 1990
Forwards Application for Amends to Licenses DPR-66 & NPF-73, Consisting of License Change Request 174/36,updating Staff Titles to Reflect Nuclear Group Organization
ML20012F6021990-03-30030 March 1990
Submits Supplemental Response to Station Blackout Rule for Plant,Per NUMARC 900104 Ltr.Summary of Changes to Condensate Inventory of Dhr,Effects of Loss of Ventilation, Control Room HVAC & Reactor Coolant Inventory Listed
ML20012E3091990-03-23023 March 1990
Forwards Response to 900308 Request for Addl Info on Reg Guide 1.97 Re Variable for Steam Generator wide-range Level Instrumentation
ML20012E3451990-03-23023 March 1990
Submits Addl Info for Exemption from General Design Criteria GDC-57,including Background Info Describing Sys Operation & Addl Bases for Exemption Request.Simplified Recirculation Spray Sys Drawings Encl
ML20012D6491990-03-19019 March 1990
Requests Retroactive NRC Approval of Temporary Waiver of Compliance Re Tech Spec Limiting Condition for Operation 3.8.2.1 on Ac Vital Bus Operability.Sts Will Be Followed When Inverters Not Providing Power to Vital Bus
ML20012E4091990-03-16016 March 1990
Forwards Inservice Insp 90-Day Rept,Beaver Valley Power Station Unit 1,Outage 7, for 880227-891221,per Section XI of ASME Boiler & Pressure Vessel Code 1983 Edition Through Summer 1983 Addenda,Section XI
ML20012D6181990-03-15015 March 1990
Responds to NRC 900215 Ltr Re Violations Noted in Insp Repts 50-334/89-23 & 50-412/89-22.Corrective Actions:Safety Injection Signal Reset & Plant Returned to Presafety Injection Conditions & Crew Members Counseled
ML20042D7401990-03-14014 March 1990
Forwards Corrected Annual Rept of Number of Personnel Receiving Greater than 100 Mrem & Associated Exposure by Work Function at Plant for CY89.
ML20012D5801990-03-13013 March 1990
Forwards Correction to First 10-yr Inservice Insp Program, Rev 2 to Relief Request BV2-C6.10-1 Re Recirculation Spray Pump - Pump Casing Welds & Relief Request Index
ML20012D6221990-03-13013 March 1990
Forwards Response to Generic Ltr 89-19, Resolution to USI A-47. Recommends All Westinghouse Plant Designs Provide Automatic Steam Generator Overfill Protection to Mitigate Main Feedwater Overfeed Events
ML20012C1791990-03-0909 March 1990
Responds to NRC 900207 Ltr Re Deviations Noted in Insp Repts 50-334/89-25 & 50-412/89-23.Corrective Actions:Written Request Initiated to Identify Unit 2 post-accident Monitoring Recorders in Control Room & Recorders Labeled
ML20012E0911990-03-0505 March 1990
Lists Max Primary Property Damage Insurance Coverages for Plant,Per 10CFR50.54(w)(2)
ML20012B7051990-03-0202 March 1990
Responds to NRC 900131 Ltr Re Violations Noted in Insp Repts 50-334/90-05 & 50-412/90-04.Requests Withdrawal of Violation Re Stated Transport Problem & Reclassification as Noncompliance,Per 10CFR2,App C,Section G
1990-09-07
[Table view] |
Text
,, _~ ~. .
,t THIS 2NRC LETTER BEING REISSUED' }
TO CORRECT DUPLICATION OF 2NRC t 015 DATED 02/01/8N s TO NOW READ 2NRC-5-016 1 78 5 41
.412i 92WO Nuclear Construction Division Robinson Plaza, Buildir.g 2. Suite 210 Wecm N2s 78tm Pittsburgh, PA 15205 February 1, 1485 United States Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Mr. George W.-Knighton, Chief Licensing Branch 3 Office ot Nuclear Reactor Regulation
SUBJECT:
Beaver Vallay Power Station - Unit No. 2 Docket No. 50-412 Response to NRC Structural and Geotechnical Engineering Bran 6's Dreft SER Open Item on Scil-Structure Interaction Centlemeni 7 This letter provides our response to the NRC Structural and Geotech-nical Enginearing Branch's (FGEB) Draft SER open item on Soil-Structure Interaction (Item SRP 3.7.3 [ Audit Action Items 4, 7, and 23]) . This submit-tal suppleme nt s our response to NRC Structural Design Audit Action Item 7, which~ was provided in Reference (a), and.. addresses the discussion of that response at our November 30, 1984, meeting with the SCEB (Reference (b]).
In Action Item 7, the SGES reviewers requested that additional soil -
structure interaction analyses be performed for the containment and intake structures in order to demonstrate that SVPS-2 meets the intent of SRP 3 . 7 . 2 .11.4 ~. No further analyses . were performed for the intake structure '
because, as stated in References (a) and (b), the adequacy of this structure was addressed under the BVPS-1 docket.
To demonstrate that BVPS-2 meets the intent of?SRP 3.7.2.11.4, DLC's '
. response to Action Item 7' provided an alternate soil 7structure interaction-analysis for the coit' inment a structure'. As .discused fin FSAR Section 3.7.2, ,
the original soil-structure interaci. ion analysis for the1 conti% ment i; sed the
./
. finite element methed (PLAXLY computer code), in which the 66il was nodeled'.
as - finite ' elements and the structure as a lumped mass elastic beam. The 4,'
r alternate' soil-structure interaction analysis, provided in, the Action Item 7 4 3
response, was- based og cthe three-step solut ion devebned by Kausel and ,j -/ "
Whitman. This! analysis used .' the same lumped. ~mdss elastic beam model' to ,
- represent ~ the Containment structure; the soil - was modeled .as a half-space using th'e frequency-dependent compliance function met'aod of anlaysis. The
' design'e'arthquake input'mo' tion was. defined to occur at the ground surface in the , - free field. '. Kinematic 4 interaction was ualh to, transform the ; purely
' translational motion at the ground surface into. combineditranslational and-rotational motion'at the foundation level. O',
- At - our meeting with the SCEB on' November 30, 1984' , our response to
~
4' ,
~
' Action . Item - 7 was : discussed. The. SGEB reviewers requested that a further -
soil-structure interaction analysis be 'perforir.ad' by using either a simplified l 1
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-g[
Uni",e'd 3itates Nuclect Ragulatory Commission
. Mr.Jeor'ge W. Kni'ghton,- Chief
'Page 2 ,,
, 9' .
Wh itman -type s soil spring approach or a frequency-de pendent impedance 4'
approach. Yn't either approach, the SGEB reviewers specified that the free-field ground surf ace earthquake input motion was to be applied at the founda-tion level of the structure. DLC agreed to perform an analysis for the
, M cont aimment structure that uses the frequency-de pendent impedance approach
}i)' with ' the free-field ground surf ace motion applied at the foundation level. l 3
j , 4pon further consideration of the ECEB reviewe rs ' request, we con-cludenthat such an analys,is would yield results which are neither physically 9
'" represents.tive of the ' actual site conditions nor technically sppropriate. l The SCEB reviewers' suggested analysis neglects two physical phenomena which are well-recognized by prof essionals in the field of seismic analysis (Refer-ence ,(c}) and are.very impo rt ant to specifying the appropriate vibratory
. groand motion to be applied at the foundation level of the structure, cc,nsis- j I tent with the: requirements of 10CFR100, Appendix A . These two phenomena t are:
(1) the soil laye r between' the ground surface and foundat ion level modifies the foundation level vibratory motion compared with the
, . greund surface vibratory motion; and
. i
'(2) the geometric ef fects of the structure also modify the vibratory 1
motion at the foundation level relative to the ground surface vibratory motion.
The Kausel-Whitman three-step anal) tical method, used in our Action Item 7 response, . has c - sound engineering basis and accounts for both ' the
'ef fects of ' the soil layer and the geometric ef fects of the structure on the
. vibratory motion at the foundation level compared with the ground surface -
+ - vibratory motion. We believe that the results of the ' analysis presented in 3
Lour Action Item 7 response are physically. consistent with these well-recog-17 . nised principles of soil-structure interaction and are therefore technically appropri ate. Attachment A provides - a detailed description of the Kausel-Whitman three-step analytical method.'
< :J-hr
. Attachment - B presents ' a comparison of' the one percent damping curves
~
j of. b'othj the: BVPS-2 design - response spectra and those resulting from the J Kausel-Whitman three-step method' for several typical locations . Both spectra .
",' '~
compare favorably with only ' minor exceedances which are- ins ignificant consideving the conservative value -(one percent) used for equipment damping.
This ' demonstrates that BVPS-2 meets the intent of SRP 3.7.2.11.4.
- n In DLC's a plication for the..BVPS-2 Construction Permit, the soil-s structure . interaction was analyzed as directed by your staff. (See PSAR
= Question 3.19, . Amendment - 7, July 9, 1973.) In the course of the present Operating License Application' review, the docket has been augmented with a responsive, . technically' appropriate analysis which indicates that BVPS-2 meets the intent of . SRP 3.7.2.11.4 of NUREG-0800, the most recent formal NRC
-guidance concerning this ?isJue. Therefore, we believe that the BVPS-2 PSAR,
'FSAR, the supplemental informationL provided in the response to NRC Structural s Design l Audit Action' Item 7, and' this' letter provide a complete record for the.
satisf actory closure of this issue. DLC is willing to again meet with the
-w -
y b-qmm-- --w ,,,-C.eN**-d'-*w-ed F- e m a w- e +=ww= --w+csas--%y syg..g-w.- .,,m-vewin ==e-Mw---tw*'-eww,w--@-+,-w-- y-e+w+-*=~ee-- 1- -e
- m United States -Nuclect Rtgulatory Connaission Mr. Gaorge W. Knighton, Chief
.Page 3' SGES staf f to clarify any points in this or previous submittals. If such a
. meeting is desired, DLC requests that the Assistant Director for Licensing participates to ensure involvement of appropriate NRC management personnel.
However, DLC believes that further requests for analyses utilizing al t e rne-tive methodologies .will of fer no, meaningful additions to the existing record.
Therefore, DLC is requesting that further requests fo r information on this issue be addressed by.the NRC staff as a backfit in accordance with the
- provisions of 10CFR50.109, CNLR 84-08, and NRC Manual Chapter 0514.
DUQUESNE LIGHT COMPANY By .
E. J. Woolever Vice President JD0/wjs A t t achment s -
cc: -Mr. B. K. Singh, Project' Manager (w/a)
~
Mr. G. Walton, NRC Resident Inspector (w/a)
Mr. G. ' E. Lear,- NRC SGER Chief (w/a)
References:
(a) Letter 2NRC-4-080, dated June 15,L1984 (b) Letter. 2NRC-4-207, d sted December 17,- 1984
...c)
( NUREG/CR-1780, " Soil-Structure Interaction: The Status of Current Analysis Methods and Research" prepared for U.S. .
Nuclear Regulatory Commission ' by Lawrence Livermore Labora-tory, October 1980 COMMONWEALTH OF PENNSYLVANIA -)
) SS:
COUNTY OF ALLEGHENY -)-
' On this /44 day of _e m_> > f , /976 , before me, a Notary Public in and - for , said Commonwealth and County, personally. appeared E . _J . Woola.er, who being duly sworn, . deposed and said that (1) he is Vice President ~o f Duquesne Light, (2) he - is . duly mathorized to execute and file the foregoing Submittal ; on behalf of said Company, and (3) the statements set forth in; the Submittal are true and correct to the best -of his knowledge.
0 Notary Public ANITA ELAINE RI!rtn. TiOTARY FUGLIC ROBINSON TOWNSHIP, ALLEGHEN'/ CCUNTY -
' MY COMMISSION EXPIRES OCTOBER 20,1986 i
gr e w--wen---p%- -w hy9-e w ut-ger ye*TN^8' T'-
i
- v ATTACHMENT A
^
I. DESCRIPTION OF THE THREE-STEP ANALYSIS
- The solution of soil-structure interaction problems can be reduced to the following three steps:
- 1. Calculations of frequency-dependent soil stiffnesses
- 2. Modification of the specified surface motion to account for structure
- embedment
]
l :3. Interaction Analysis ,
These steps are illustrated in Figure I-1 (see Reference 2).
I.l.1 Frequency-Dependent Soil Stiffnese f -
- The frequency-dependent stiffnesses of a rectangular footing. founded at the i
- surface of a layered medium are computed with the program REFUND, discussed in Section II. The program solves the problem of forced vibration of a i rigid plate on a viscoelastic, layered stratum using numerical solutions to i the generalized . problems . of Cerruti and Boussinesq (see Figure I-2) . The effects of unit harmonic horizontal and vertical point loads are combined by ,
- superposition to produce the behavior of a rectangular plate.
Solutions to the problem of a point load on the surface of continuum require an assumption about the behavior of ypium directly under the load; for example, see Ti.aoshenko and Goodier. In REFUND, a solution directly under the ' load is achieved by employing a columen of elements for which a .
linear displacement function is assumed. Away from this-centr 31 column, in the "far-field,"'the solution for a viscoeleastic layered medium is obtained (see Figure I-3). I g, If the _ central column under the point load is removed and replaced by equi-valent distributed forces corresponding to the internal stresses, the dyna-mic equilibrium of the far field -is preserved. Since no other prescribed i- forces -act on the far _ field, the' displacements at the ' boundary (and any
, other point in the far field) are uniquely defined in terms ' of these bound-
- a ry fo rces . . The problem is thus to find the relations between these bound-ary forces _and the corresponding boundary displacements.
LB4-12241-7772 1
In" REFUND's cylindrical coordinates, loads and displacements are expanded in Fourier Series around the axis:
oo oo Ur- 0Eu n cos nO Pr " E' 0 Pr cos n s Uy
- u" cos n O Py n py cos n O n n Ue ' h-u, sin ne P, = g - p, sin nO For the problem at hand, only the first two components of the series are needed. The (unit) vertical force case corresponds to the Fourier component of order zero (n = 0), and the horizontal unit force case corresponds to the Fourier component of order one (n = 1). The cartesian displacement (flexi-bility) matrix (F) at a point then follows from the cylindrical displacement components.
(ur+ )+ (Up U )COS 26 Uf CoS6 (u p-u g) sin. 20 u y coS e .u y u'y sin e -
(ur-uh Sin 29 UfSinO 1 (yI+yg).1 p (yl.u r g) cos 29 .
% J and the displacement vector for arbitrary loading is U = FP where m e m (UX EX U-- uy v P-i p ?
y Sz; sL P B4-12241-7772 2
~ . . . - .- . _ _ _ .
4 U - is the displacement vector at a point (x,0,z), while P is the load vector at (0,0,0). The' coordinate system is illustrated in Figure I-4.
For p,oints along the free surface,.the reciprocity theorem requires tL at US Uy . Hence, F is chessboard symmetric /antisynssetric. REFUND then ecs-putes the cylindrical displacement components for the two loading cases, and determines the cartesian flexibility matrix F under the load (axis) at the boundary and at selected points beyond the boundary. ,
To compute the subgrade stiffness functions for a rigid, rectangular plate, the program discretizes the foundation into a number of points and computes the global flexibility metrix F from the nodal subnatrices F using the technique just described. Imposing then the conditions of unit rigid body-displacements and rotations, it is possible to solve for the global load vector from the equation ,
FP = U where U is the global displacement vector satisfying the rigid body condi-tion. It follows that U is of the form U = TV
.I where V is a (6 x 1) vetor containing the rigid body translations or rota-tions of the plate and T is the linear transformation matrix assembled with the coordinates of the nodal points. The stiffness functions are then obtained from e
Z=TP l
l
(=
l whi-h corresponds formally to l
Z = T P' TV l.
B4-12241-7772 3
- j. A comparison of REFUND results with another method is shown in Section II.1.
.I.1.2 Embedment Correction The effects of foundation embedment on the impedancesgre included by employing correction factors described by Kausel et. al. These correc-tion factors are determined from parametric studies of embedded fcundations and are of the form
-Cg =(1+C h )(1+Cd)(1+C 3
3 k) in which C * *******i** ****#
R.
R = foundation radius E = embedmont depth H = depth to bedrock Ct = constanta, different values for each degree of freedom.
. The frequency-dependent stiffnesses, K, determined by REFUND, are modified -
to become K1 =KxC R ,
f I.1.3 Kinematic Interaction l In the second step of the analysis shown in ' Figure I-1, " kinematic inter-action" modifies the purely translational input specified at the surface of
[ the stratum to both a translational :and rotational motion at- the base of the l rigid, massless. foundation. The existence of the additional input can be 1 inferred from Figure I-5. In a stratum undergoing . translational motion
! .only, the boundary. conditions ' at the " excavation" require the foundation to rotate. Ignoring the rotational component would result in an unconservative solution. Note that 'the modified motion at the base of the foundation is not equivalent to a deconvolution.
The solution to the kinematic interaction portion of the analysis is based on .Kausel's adaptation of Iguchi's (1982) generalized weighted averaging technique. In essence, the method requires solving the 6 x 1 equation U.H(A f T UT *d A + K [A TTg* dA 1
84-12241-7772 4 b
w f
l l
l l
l
- where:
r.
~
T'= '
1 o o o (z - z o) -(Y - Yo) ;
. o 1 o -(z - zo) o (X - Xo) ;
o o 1 (Y - Yo) -(X - Xo) o (Xo,Yo,zo ) = coordinates of the centroid of the foundations .
I contact area (X,Y,Z) = coordinates of foundation / soil interface A = surface area of foundation U* = U*(X,Y,Z) = the free field displacement vector along the foundation / soil interface (before excavation)
S = 'S*(X, Y, Z) -
the free field tractions vector at the foundation / soil interface -
1 T
- n. = T TdA
.A K = Foundation impedance matrix Uf = matrix of transfer functions for motion of the massless foundation To obtain the actual motion to be*used as support motion in the- three-step method, the transfer functions must be convolved with the-Fourier transforms of .the ' accelerations' of the surface earthquakes, resulting in the following
. solution:
i (t) = IFT (F(O)uf S (t) = IFT (F(O)*)
t F(O) = Fourier. Transform of surface motion
. IFT = ~ Inverse Fourier trans form sin (P E)
E cos(PE)' g sin (PE) ) ,,, 77 PR (f.{}
~
u =
R PE 4 t 2E
,, g (Go, +5pXlt 0.6i PR )
R 84-12241-7772 5
- 74- - -p w- r-i +%v y,.m.,v g- -- g ep.-4-y*p.-we-g y. *g-- 99e.,---g.,%,pp.-%.*y -,Wewp,. .ywyp mww 99 q.- is,ye,ay,. ,-p,ew- g.-e.wneg,pp.-- e_wy 9-ye.d'F
I sin E f
\+sv(g hos(PC-ph sm(PET
, (PE)1-( g) p(sd(
, ,p '
e 4}(f cos (PO)+ ( .
8 2 g (PR)*
MPR)
I+ j 4({ } 4 -
R = foundation radius P =
h(MS s
E = foundation embedment depth V = Poisson's ratio Gg = shear modulus of soil adjacent to foundation
, G 2 = shear modul'us of soil below foundation l h = height of the foundation's area center of gravity above the base of the foundation 4
c, = shear wave velocity I.1.4 Interaction Analysis The third step of the procedure- illustrated schematically in Figure I-1 is the analysis of the structural model supported on the frequency-dependent springs from Step 1 for the modified seismic input from Step 2. The solu- _
, tion is achieved using the progrse TRIDAY.
FRIDAY evaluates the ' dynamic response of as assembly of caatilever struc-tures supported by a common est and subjected to a seismic excitation. The support of the met can be rigid, or it can consist of frequency-dependent /
independent springs and dashpets faubgrade .stiffnesses). The equations of motion _are selved is the frequency densia, dece d =4=- response time histor--
ies by coevolution of the transfer functions and the Fourser transfone of the imput escitation. The dynamic equilibrium equations can be written in estriz notation as:
i- . . . .
M U t CY +KY=0 (1) where M,- C, and K are the assa, damping, and stiffness matrices, respec-
, tively. . and U Y are the absolute and relative (to the moving support) dis-placement vectors.
These two vectors are related by:
U = Y~+ EU (2) l'
.84-1224'.-7772 6
-where U is the base excitation vector (three translations and three rota-tions), and E is the matrix:
e m I T1 O I I T2>
4 O I I Tn O I
% J (3) where I is the (3 x 3) identity matrix, o is the null matrix, and
- 3 O Zj Zo 4Yj - Yo)
T; = ' d -(Zj-Zo) o X;- Xo P Y;-Yo MX;-Xo) o u s with x g , y , z g being the coordinates of the corresponding mass point; x,,
y,, z, are he coordinates of the common support.
In the frequency response method, the transfer functions are determined by setting, one at a time, ge ground motion components equal to a unit har-monic of the form u =e . It follows then that U, Y are also harmonic:
84-12241-7772 7
~
iwt = iwt U = Hj e (Hj - Ej) e C*{lwH je iwt 9 gl(Hj- Ej)e iwt .
~ iwt y ,- (H;-Ej)e iwt U- rHje I
(4) gre H k groun(d = H g m) is j . inpu motion, and E. the vector containggs column of the E intransfer functions Equation 3. Sub- for the.
g - is the j stitution of Equation 4 into Equation 1 yields:
(-w aN + imC + K)M = (5) 3 (imC + K)E)
Ifthedampingastriz.isoftheformCsh.D,whichcorrespondstoalinear hysteretic damping situation, the equation reduces to:
(-wsM +-K + iD)Ey = (K + iD)E (6)
In view of the correspondence principle, it is possible to generalize the equation of motion allowing at this stage elements in the stiffness matrix K.
~with aa arbitrary variation with frequency. This enables the use of frequec.cy-dependent stiffness functions or impedance (the inverse of flexi-bility functions.or compliances). l
- l. Defining the. dynamic stiffness matrix: l Ed = E + iD - way I
(7) -
The solution for the transfer functions follows formally from:
B4-12241-7772 8 1 ._
sy r+- yv v sq-
i Mg a - g",' (K + 10) Ej a
= -(I+w gpgyg)
(8)
~ Note that the dynamic ' stiffness matrix K does not depend on the loading condition E g. Also, for m = 0, H g(0) = E g.
Having found the transfer functions, the acceleration time-histories follow then from the inverse Fourier transformation:
e U*hJ.
l 1Hgfgfe""de ia (9) where, f = fg (w) is the Fourier transform of the j'h input acceleration componend: ,
T f) a y e*IM dt 0
84-12241-7772 9 4
- 4~-- -, .,
(10)
The procedure consistr then of determining the dynamic stiffness matrix K '
' d
' solving Equation 6 - fo e the six loading conditions H = {H } , determining the six Fourier transforms of the input components F = f; , and perform-ing the inverse transformation (Equation 9), whichcorres[pbdsformallyto:
e i Us Hp eh de
-e The dynainc equations are solved in FRIDAY by Gaussian elimination, and the
-Fourier. transforms are computed by subroutines using the Cooley-Tuckey FFT (fast Fourier transform) algorithm. A comparison of the results of FRIDAY j with another solution is shown in Section II.3.
. I.2 REFERENCES
- 1. Timoshenko in Goodier, Theory of Elasticity, Third Edition, McGesw-Hill Book Co., pp.97-109.
- 2. Eausel, Whitman, Morray, la Elsabee, The Spring hethod for Embedded Foundations. Nuclear Engineering and Design 48(1978): 377-392.
- 3. Michio Iguchi, An Approximate Analysis of Input Motions for Rigid Embedded Foundations. Trans of A.I.J. No. 315 May 1982.
84-12241-7772 10
.. . . - .. ~ . .. - _ _ . - - - .-. - . --
d 4
s If. DESCRIPTION OF COMPUTER PROGRAMS II.1 REFUND AND EMBED i The computer program REFUND is used for computation of the dynamic stiffness functions (impedance funcitons) af a scisid , massless, rectangular place
- welded to the surface of a viscoelastic, layered stratum. The subgrade stiffness matrix is evaluated for all six degrees of freedom for the range of frequencies specified by the user. Embedmont effects are applied subse-
.quent ly by the program EMBED.
i The program reads the topology and material properties, assembles the sub- l grade flexibility matriz, and determines the foundation impedances by inver- l l sion. The subgrade flexibility matrix is determined with discrete solutions ,
to the problems of Cerruti and Boussinesq. A cylindrical column of linear l elements is joined to a consistent transmitting boundary, and the flexibil- l ity coefficients found by applying unit horizontal and vertical loads at the axis. h rectangular plate is discretized into a number of nodal points, i and the global flexibility matrix found using the technique just described.
The foundation stiffnesses are then determined solving a set of linear equa-
. tions which result from imposing unit-rigid body translations and rotations to the plate.
f Since REFUND is restricted to surface-founded plates, the effects of embed-l meet are included by adjusting the REFUND results with the program EMBED. ,
' h theoretical bases of these programs and their application to the ' solu- t
, tion methodology are described in Section I.1.2.
l h results of REFUND compare very well with published results. The com-
- parisons shown in Figures II.1-2 through II.1 ' are based upoa " Impedance
- Functions for a Rigid Foundation on a I.ayered Medium," J. E. I.uco, Nuclear
- Easiaeering and Design, Vol. 2, 1974. Of the various solutions presented by
- . I.uco, the following was selected for comparison (see Figure II.1-1)
I.ayer 1 I.ayer 2
- Shear wave velocity 1 1.25 Specific weight 1 1.1764 Poisson's ratio 0.25 0.25 l
The - comparisons shown are of the coefficients k and c f rom which the verti-cal, translational, and rocking impedances can be expressed: i E = Ee [k + iso el 4
in which so is a dimensionless measure of frequency and Ko is a zero-p frequency stiffness.
! The< minor differences shown between the RETIMD result and Luco's analysis I
can be attributed to the use of an " equivalent" rectanau t a r plate tn the REFUND analysis (Luco's is circular) and to differences in hnunila ry condi- .
I tions at the footing (rough vs. smooth).
84-12241-7772- 11 1-
. _ , _ _ . _ _ _ . _ _ _ _ _ _ _ , - . __,_.._.a.______,__._________.._______.___.__._
i II.2 KINACT I
KINACT is a computer program used in the three-step solution of soil-structure interaction problems. Briefly, the program modifies the specified i translational time history at the, surface to tranlational and rotational time histories at the base of a rigid, massless foundation.
The theoretical basis for the program is derived from wave propagation theory as described in Section I.1.3.
II.3 FRIDAY The computer program FRIDAY is used for dynamic analysis of structures sub-jected - to seismic loads, accounting for soil-structure interaction by means of frequency-dependent complex soil springs.
The structure is idealized as a set of lumped masses connected by springs or linear members, and attached to a common suFPort, the mat. The latter is supported by soil springs or impedances, which may or may not be frequency-dependent. Alternatively, the est may rest on a rigid subgrade. The structure may be three-dimensional, but cannot be interconnected; each structure has to be simply connected. Fourier transform techniques are used 3
to determine time histories; cutoff frequency is prescribed internally to 15 Hz.
4 The theoretical basis and implementation of the program is described in Section I.l.4. A comparison of FRIDAY with a public domain program, STAR-DYNE, for the seismic response of a fiaed-base, multi-mass, cantilever model is chown in Figure II.3.-l. The model is shown in Figure II.3-2.
a.
a 4
4 84-12241-7772 12
!l
~
y (t ) (K],,, y(t)
O O u f(t) k - QF gh[--
,g, Q ,Is(t) j(t)
" * +
7(g) 55 1 anVM menev/
,. ,ni V '
'[K] nun '
FREQUENCY KINEMATid INTERACTION
- DEPENDENT INTERACTION ANALYSIS
~ STIFFNESS
. REFUND KINACT FRIDAY O
FIGUREI-1 THE THREE STEP SOLUTI0li
i, lz
,v.. a f s
t )
\
~ ~
\ /
BOUSSINESQ 3
/z
/r
' ~
,.. im .
r X
\ (
~
q .
CERRUTI FIGURE I 2 THE SOUSSINESQ AND CERRUTI PROBLEMS
1 i
"l H
\
\
CENTRAL cowaus%
R g
\
1 FIGURE I-3
. IDEALIZATION OF THE BASIC ' REFUND' SOLUTION FOR CONCENTRATED LOADS s
U Un Z
i 0 -
ex 1
Y l
i i -
l L
FIGURE I-4
'REFU.'10 COORDINATE SYSTEM i
)
, i > : ! , - '
! !i l ! ll
~
a'
_ b('
Yf
)
l I
( t b
mF 1
1 O
b .
I
_ T C
A R
_ E T
_ N I
5
_ C II T
EA -
nN uE l Gl Ii FK l
as i
e
- b. i y
A A
N a O A -
- I a T A TA y AD N
p 1 I
Il n
1 1
/ -
NU OO I
T AS F
N O
I
) RS T
)
g t EE A g ( LL R
" h ES E u .. CS CA L AM E C
L 0. C A1 A N0 L O0 I 2 A T N AF O LO I S T NE A AS T RA O TB R a =
l t t i i l
, Is , (
~
!lt
I e
o I
i l
1 :
i l
l F
I UNIT RADIUS rsssssssssssssss\ . .. . . . ',
>a as sw a
,, 8 1 - -
^
t i
I' I
{
l q'
t i
r I I
FIGURE E.1-1 LUCO'S TWO-LAYER PROBLEM
1 s
e f-e i
1 l
e 1
/ \
/ \
as = /
y
/
es - g / -
~
g .
e 1 a s' 4 s e 7 s g
. o FIGURE H.1-2 ROCKING STIFFNESS COMPARISON -
4 REAL PART
- m~ ,---.*vw--ww-- - -- ,- ----.w-we-----.-v.--.-,-w--we---*- ,wm-. -
ww wwww. w _ . --
P h
Cr m *
- - agytNIO l
ta - .
c.s -
1 e5 -
l 1
on -
s se ,- __
aa - - l l
o - . .
e 1 2 3 4 s e 7 a 4 l.
I 1'
t r
f l l
i
(
l .
i l e
FIGURE II.1-3 l
ROCKING STIFFNESS COMPARISON -
i IMAGINARY PART l
e E
l.
kg n .
l, M l i
u = n = = = = REPune .
I I
n M = n
' l 1- g ta =
3 1 5
/
O I t
\ '
\
- \ \
\
\
< as - g 4
r 1
t i i f L e
M = \ -
as -
e ,
e
, e e e e e e 0 1 2 3 4 5 6 7 8 g e
d FIGURE R .$-4 HORIZONTAL STIFFNESS COMPARISON -
REAL PART
j
, 1 b
REFUND ta =
48 =
g -
g m #
e
, , , , , , e ' r - --
e, , , . . . . t * =
I e
e FIGURE I HORIZONTAi.1-5 STIFFNESS COMPARISON -
IMMi1 NARY PART
?
e G
g m
gs - - - ngFUND .
1A -
1.5 = *
,/ \
\
gg . l l
l M *
% 1 l
S2 " \ l O
,\ s , , , , _
e i .a a s a 7 e 4 l
'A FIGURE II.1-6 VERTICAL STIFFMESS COMPARISON -
REAL PART
a m. , _ - _ _ _ . _..a - - --
9
.y e
7-4 l
!' . l
)
i 1 .
l C, d Luce ,
)
. -_.-2 13 d 9 i
N s W
A #
' u .J Q I .-
= v -
1
. i . . . . , , _
, ' ~ ~ ~ ~
O 1 2 3 4 S S 7 3 So I
I' I
FIGURE H.1-7 l VERTICAL STIFFNESS CCEPARISON -
IMAGINARY PART
4 l
l d
14.0 -
FAIDAY i ta.o - --- sTanovat !
i
- 10 s - .
ee -
g .
M M - .
4 s
-w
..,a sa -
w-
. k 44 .
( -
to - _
, . . . . . . T . . i ,, , ,
0 0.1 0.2 0.3 0.4 0.S 0.8 OJ , 0.8 0.9 1A PERICO (SECONDS) ,-
I i
I s
\
l a
r - .
FIGURE II.3-1 CWtPARISON OF ' FRIDAY' ANO
- 'STARDYME'-ARS AT THE ROOF u
l' c c~-. ,- , -, .-n ,
vn.- .,,.--,,,.....--.,_n.,---n.,_.......,,,,,,-,-._..,----.---,,-,--w, ,.,-n--.n..__,,,,-...,.n- . - , . - - ,
I
. ,)*
z; - i' i .
3 w
41 :;.
-1 gg o g ..
t t 't g
(l. '( -
+,- i. i f .
E 48* 2 ~
f -m. ,
J. ' 1
,. J ' . .
2 '
=
i'
\
E 38' 3 --
t
~
3 t
~
g M' 4 . ..
l' 4
' /i ;
" $Y'
.i j t.
y
. f. .
s,
& 11' ,t TO
<! - summ e
4 5
l ' a. , *
t j
-////4////I
.4 t'
- l. .
c.
i FIGURE 11.3-2
'5TARDYNE' MODEL . .
l l
~-,~n-- , - . , . . . , - - . . . . . . - .-..,,,--, . . . - . . . . . . . . . . _ - - - . . . ~ . . . . - ~ . . - . . . . . . . . - - - . - - . . . . - . . - . _ . . . . - .
! r- _ _r- - - - - i . .
g g DESIGN SPECTRA i_, i 3 STEP" METHOu SPECTRA
. q, [ I e g
, i
.i -
' l g I-i
-g a .L l 3
'u
.i / I
'M l l
, - !- i,A L i, ;
I,
, I . . l <'
", = = = -
g* I- :
-: r
_. 1'_ .,,
,e
) T,_ - -
g .
eaz 4.- g m
2
-I -4
%.= <.i. s. s.= s.= < ,_
s.. g.g j.g .= c.. c. . c.= c. c.= c. ,
4 d, -
- .BVPS-2 CONTAINNENT SThuCTUR E EL 854.0 _(TOP _0F DOME )
HORIZONTAL SSE l% EOUlFMENT DAMRNS
/ ,
r _ . . ,, - .
,u-
. si . .
J.:.
gl *w ; .
a ~-
+, ;,
N %.
- z. ,
'4 J ,
-- ---- DE SaGN . SPECTR A '-
C. .
~
3 STEP METHOD SPECTRA .
1 g -p-3 -
I
! .jg
.4 :
.s b -
'+ ,
l' 1.
4
, .. l l 4.
' [- -- 1
, /
S l
. .,q<_
l g l I q
- g L _ ._ q 1 i !_ _
l l
s
/
N -
2!$
a CM m n 1 g-
/ m2
. E om bz q
s.. s.m - s.= s.= s.= s.. s. g.g g.g s.. c. cw cm c= c. c.
]
BVPS-2 CONTAINMENT STRUCTURE EL 818.0 (TOP OF CRANEWALL )
HORI ZONTAL SSE 1% EQUIPMENT DAMPI N r.
- -- a 2a ----,O a 1, - --,A -e..se.- --,.,- 6 an. -- m.n 6 ,
~-
ATTACHMENT S .
- . FIGUR E B.3 4
k-
w >
- h >2 3 Ea
a>
W V)
OM ,
f I
I o~
k, ";
I 5
(. 8 I s y_J i sc o l- *
w2 1 < -
o-I
- g w l e . EW 3 2 I ww uz SE
.a g
__a "3w
' g#
r3 N .!
IEw i.
i .a L - ' -- - - .
- - - _ . _ ,. 3 d
3 ,J 04 ok
-E
>o
'\ 8 mZ w, w. we we w. ggw. we we w. -r s
- - , _ + - - - - , - - . - . - +--e..r-. ,,.~,,,,,,,m._-, ,._,...__.._-~..--.,-.-,,-..,_,._,_..,...-,-.____,.-.--......o,m.-_.._. -
~ . -
3aCA , ,
A .
R T
C E .
P A S RD TO .
CH ET PE SM NP GE I
S ST E .
D3 .
_ )
T
_ A
,t . M
<. E S
' -A S
g (
g G N
i't g 0. fP 8 M 0
g., A
.6D L
. ET
<. N EE RM
. UP I
<. TU C9 rih UE R
T%
S1 s#
, i T
_ . NE
<. ES
_ - MS r .
N I
e1 <.
A L T A NT r .
ON CO
<. SZ SI PR VO
. BH I-g'" 4.
& 4-g2,, < a.
s-
" es '
i!; 4 i: l ! ;: .i i , i; 1 ! i' i 1 ! ,!I li iIIi