Letter Sequence Response to RAI |
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CAC:MF8260, (Approved, Closed) EPID:L-2016-LLA-0007, Enclosure 3 - Licensee'S Presentation-Seabrook Station, License Amendment Request 16-03 ASR Structural Evaluation Methodology (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance
Results
Other: ML17199T383, ML17283A040, ML18135A046, ML18204A242, ML18353A954, ML19044A768, ML19058A216, NRC-2019-0075, Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007), SBK-L-16013, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program, SBK-L-16181, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program, SBK-L-17101, Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan
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MONTHYEARSBK-L-16013, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program2016-08-0909 August 2016 License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program Project stage: Other ML16258A0222016-09-19019 September 2016 Supplemental Information Needed for Acceptance of Requested Licensing Action Alkali-Silica Reaction Project stage: Acceptance Review ML16265A4402016-10-12012 October 2016 Acceptance of Requested Licensing Action Alkali-Silica Reaction Project stage: Acceptance Review SBK-L-16181, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program2016-12-23023 December 2016 License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program Project stage: Other SBK-L-17101, Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan2017-06-16016 June 2017 Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan Project stage: Other ML17199T3832017-07-26026 July 2017 Site Visit Report Regarding Regulatory Audit for Alkali Silica Reaction License Amendment Request Project stage: Other ML17214A0852017-08-0404 August 2017 Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction Project stage: RAI ML17283A0412017-08-24024 August 2017 Enclosure 3 - Licensee'S Presentation-Seabrook Station, License Amendment Request 16-03 ASR Structural Evaluation Methodology Project stage: Request SBK-L-17156, Response to Request for Additional Information Regarding License Amendment Request 16-03 Related to Alkali-Silica Reaction2017-10-0303 October 2017 Response to Request for Additional Information Regarding License Amendment Request 16-03 Related to Alkali-Silica Reaction Project stage: Response to RAI SBK-L-17155, Supplement 58 - Response to Request for Additional Information for the Review of the License Renewal Application - Building Deformation Analyses Related to Concrete Alkali-Silica Reaction2017-10-0303 October 2017 Supplement 58 - Response to Request for Additional Information for the Review of the License Renewal Application - Building Deformation Analyses Related to Concrete Alkali-Silica Reaction Project stage: Response to RAI ML17283A0402017-10-10010 October 2017 Enclosure 2 - Nrc'S Presentation Slides-Seabrook Station, License Amendment Request, Stage 3 Methodology Project stage: Other ML17261B2172017-10-11011 October 2017 Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: RAI ML17278A7482017-10-13013 October 2017 Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Meeting ML17310A1142017-10-17017 October 2017 La - (External_Sender) Name Correction: Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Meeting ML17310B5402017-11-0303 November 2017 La - (External_Sender) SBK-L-17180 Supplement 58 - Revised Alkali-Silica Reaction Aging Management Program Project stage: Request SBK-L-17180, Supplement 58, Revised Alkali-Silica Reaction Aging Management Program2017-11-0303 November 2017 Supplement 58, Revised Alkali-Silica Reaction Aging Management Program Project stage: Request ML17341A0622017-11-17017 November 2017 NextEra Energy Seabrook Presentation Slides - Seabrook Station ASR Methodology LAR: Structural Deformation - LAR 16-03, Methodology and Responses to Rais D2-D8 - for November 17, 2017, Public Meeting Project stage: Response to RAI SBK-L-17204, Response to Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007)2017-12-11011 December 2017 Response to Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Response to RAI ML17340A1862017-12-14014 December 2017 Summary of November 17, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction - Requests for Additional Information (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: RAI ML18102A0972018-04-12012 April 2018 Commission Memorandum and Order CLI-18-04 Project stage: Request SBK-L-18072, Revised Structures Monitoring Aging Management Program2018-05-18018 May 2018 Revised Structures Monitoring Aging Management Program Project stage: Request ML18135A0462018-05-21021 May 2018 Site Visit Report Regarding Regulatory Audit for License Amendment Request Alkali Silica Reaction License Amendment Request and License Renewal Alkali-Silica Reaction Aging Management Program Review (CAC No. MF8260; EPID L-2016-LLA-007) Project stage: Other SBK-L-18074, Response to Request for Additional Information Regarding License Amendment Request 16-032018-06-0707 June 2018 Response to Request for Additional Information Regarding License Amendment Request 16-03 Project stage: Response to RAI ML17088A6742018-08-17017 August 2018 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML18271A0692018-09-28028 September 2018 Attachment 2 NRC Staff Draft Safety Evaluation (Non-Proprietary) Project stage: Request ML18226A2052018-09-28028 September 2018 Redacted, Submission of Alkali-Silica Reaction License Amendment Request Draft Safety Evaluation to Support Advisory Committee on Reactor Safeguards Review of Seabrook License Renewal (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Draft Approval ML18348A9512018-12-14014 December 2018 License Renewal Application: Review of Licensee Program Addressing Alkali-Silica Reaction Project stage: Approval ML18353A9542018-12-19019 December 2018 Report on the Safety Aspects of the License Renewal Application for the Seabrook Station, Unit 1 Project stage: Other ML19011A3562019-01-11011 January 2019 Board Notification Project stage: Request ML19022A4002019-01-22022 January 2019 NRC Staff Board Notification Project stage: Request ML19044A7682019-02-13013 February 2019 Emergency Petition by C-10 Research and Education Foundation for Exercise of Commission'S Supervisory Authority to Reverse No Significant Hazards Determination and Immediately Suspend License Amendment and License Renewal Decisions Project stage: Other ML19042A1102019-02-13013 February 2019 Presentation Slides - 2019 Seabrook Public Meeting Project stage: Request ML19050A4602019-02-13013 February 2019 Handouts from the Public at the February 13, 2019, Seabrook ASR Public Meeting Project stage: Meeting ML19050A3202019-02-13013 February 2019 Package from Stephen B. Comley, Sr. at February 13, 2019 Seabrook Station, Unit 1, Public Meeting Project stage: Request ML19056A4772019-02-13013 February 2019 Transcript of Public Meeting on the Seabrook Alkali Silica Reaction (ASR) License Amendment Request and License Renewal Application, February 13, 2019, Pages 1-158 Project stage: Meeting ML19056A5882019-02-25025 February 2019 NRC Staff Answer to C-10's Emergency Petition Project stage: Request ML19056A5862019-02-25025 February 2019 Nextera'S Answer Opposing C-10 Emergency Petition Project stage: Request ML19046A3832019-02-26026 February 2019 Meeting Summary of February 13, 2019, Public Meeting in Hampton, New Hampshire Alkali-Silica Reaction License Amendment Request and License Renewal Application Project stage: Meeting ML19057A3832019-03-0404 March 2019 Renewal of Full-Power Operating License for Seabrook Station, Unit No. 1 Project stage: Request ML19058A2162019-03-0404 March 2019 Update to Proposed Issuance of a Final No Significant Hazards Consideration Determination and License Amendment Regarding Which a Hearing Has Been Requested (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other ML19015A1832019-03-11011 March 2019 Notice of Issuance of License Amendment to Facility Operating License No. NPF-86 (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Approval ML18204A2912019-03-11011 March 2019 Issuance of Amendment No. 159 Methodology for Analysis of Seismic Category I Structures with Concrete Affected by Alkali-Silica Reaction Project stage: Approval ML18204A2422019-03-12012 March 2019 Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other NRC-2019-0075, Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007)2019-03-12012 March 2019 Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other ML19205A3942019-07-24024 July 2019 NRC046 - Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID l-2016-lla-0007) (Oct. 13, 2017) Project stage: Meeting ML20318A0032020-11-24024 November 2020 Issuance of Revised Page for Renewed Facility Operating License Atomic Safety and Licensing Board Decisions LBP-20-09 and LBP-20-12 Project stage: Approval 2018-12-14
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Category:Meeting Briefing Package/Handouts
MONTHYEARML23177A1142023-06-26026 June 2023 Annual Assessment Meeting Reactor Oversight Process 2023 ML23066A2472023-03-0707 March 2023 Presubmittal Meeting Slides for March 7, 2023, Public Meeting ML22146A3472022-02-23023 February 2022 Slides - Pre-Submittal Meeting for February 23 with Nextera Energy Seabrook, LLC Regarding Planned Submittal of License Amendment Request to Update Pressure-Temperature Limits Curves Period of Applicability ML20161A0812020-06-0303 June 2020 Annual Assessment Meeting June 3, 2020 Slides ML19050A4602019-02-13013 February 2019 Handouts from the Public at the February 13, 2019, Seabrook ASR Public Meeting ML18136A4822018-05-0202 May 2018 Annual Assessment Meeting 05-02-2018 Presentation ML17341A0622017-11-17017 November 2017 NextEra Energy Seabrook Presentation Slides - Seabrook Station ASR Methodology LAR: Structural Deformation - LAR 16-03, Methodology and Responses to Rais D2-D8 - for November 17, 2017, Public Meeting ML17278A7482017-10-13013 October 2017 Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) ML17283A0402017-10-10010 October 2017 Enclosure 2 - Nrc'S Presentation Slides-Seabrook Station, License Amendment Request, Stage 3 Methodology ML17283A0412017-08-24024 August 2017 Enclosure 3 - Licensee'S Presentation-Seabrook Station, License Amendment Request 16-03 ASR Structural Evaluation Methodology ML17164A2712017-06-0707 June 2017 Presentation Slides for Annual Assessment Meeting 2017 ML17129A3942017-05-0909 May 2017 Status of Safety Review of Seabrook License Renewal for May 9, 2017, Public Meeting on ASR in Seabrook LRA ML17129A3842017-05-0909 May 2017 NextEra Presentation at May 9, 2017, Public Meeting Re ASR in License Renewal ML16176A0542016-06-21021 June 2016 6/21/2016 - Seabrook Station Annual Assessment Meeting - NRC Presentation Slides (Assessment and ASR Update) ML16146A2002016-04-28028 April 2016 License Renewal Application, April 28, 2016, Public Meeting NextEra Presentation ML15176A5012015-06-18018 June 2015 Aam Attendance List for June 18, 2015 ML13357A0462013-12-23023 December 2013 Update on ASR ML13357A0412013-12-23023 December 2013 Public Meeting on Seabrook Station Testing Program ML13357A0432013-12-23023 December 2013 ASR at Seabrook Station Update on Testing Program ML14023A7212013-12-18018 December 2013 No More Fukushima Statement for NRC Public Meeting on Dec 18, 2013 ML13133A2492013-05-29029 May 2013 Slides from May 9, 2013, Meeting with NextEra Energy Seabrook, LLC on Pre-Submittal of a Fixed Incore Detector License Amendment Request ML13066A4882013-03-21021 March 2013 Summary of Meeting Held on February 21, 2013, Between the NRC and NextEra Energy Seabrook, LLS Regarding License Renewal Application, Seabrook Station ML12356A0432012-12-11011 December 2012 Safety Implications and Status of ASR Condition - Public Meeting on 12/11/2012 ML12132A3442012-05-11011 May 2012 NRC-AERB Bilateral Meeting Slide Presentation (Nro/De), Aerb, India - May 16-17, 2012 ML12131A4312012-05-10010 May 2012 Aam ROP-12 Slides-Safety Performance & Alkali-Silica Reaction - r9 Revised Format ML1204402842012-02-16016 February 2012 Public Meeting Construction Experiences - Evaluate Impact of Concrete Degradation ML12026A4592012-01-26026 January 2012 EDG Ifr ML11343A4482011-12-0909 December 2011 NextEra Drop in Meeting Summary and Slides from 11-14-2011 Meeting with Region-I ML11259A0022011-09-15015 September 2011 Meeting Slides Preliminary Site-Specific Results of the License Renewal Environmental Review for Seabrook Station. ML1116500382011-06-0808 June 2011 Aam Slides, June 8, 2011 ML1108206992011-03-22022 March 2011 3/22/11 Revised Pre-application Meeting Slides Regarding NFPA 805 License Amendment Request ML1022205712010-08-10010 August 2010 License Renewal Process Overview and Scoping Public Meeting Slides ML1013901282010-05-17017 May 2010 License Renewal Overview Presentation for Seabrook Station ML0910604982009-04-30030 April 2009 NRC Slides for Annual Assement Meeting, 4/30/09 ML0809300252008-04-0202 April 2008 NRC Slides - Seabrook Aam 2008 ML0708001192007-03-21021 March 2007 Slides, End of the Presentation, from Seabrook Station Annual Assessment Meeting for EOC 2006-07 ML0608202482006-03-23023 March 2006 NRC Slides for Public Meeting with FPL Seabrook to Discuss Cy 2005 Performance ML0603805612006-02-0606 February 2006 Meeting with FLP, Meeting Handouts, Proposed Submittal to Adopt Quality Assurance Topical Report ML0727105482005-12-16016 December 2005 Measurement Uncertainty Recapture Fple/Caldon - NRC Meeting ML0512201092005-04-22022 April 2005 Slides & Handouts from Meeting with FPL Energy Seabrook, LLC, Regarding Implementation of Technical Specification 3/4.8.1.1 ML0507302062005-03-14014 March 2005 NRC Slides for Public Meeting of Seabrook Station Annual Assessment ML0414201102004-05-20020 May 2004 Public Meeting Handouts Re Power Uprate License Amendment Request for Seabrook Station Unit No. 1 ML0406304312004-03-0303 March 2004 Powerpoint Presentation Slides for Meeting with Florida Power & Light Company Regarding Planned Power Uprate Request for Seabrook Station, Unit No. 1 ML0317404312003-06-12012 June 2003 Sign in Sheet ML0232601592002-11-14014 November 2002 Meeting Handout, Seabrook Steam Generator Tube Assessment Project 2023-06-26
[Table view] Category:Slides and Viewgraphs
MONTHYEARML23177A1142023-06-26026 June 2023 Annual Assessment Meeting Reactor Oversight Process 2023 ML23066A2472023-03-0707 March 2023 Presubmittal Meeting Slides for March 7, 2023, Public Meeting ML22130A1282022-05-10010 May 2022 Annual Assessment Meeting for Seabrook Station - NRC Presentation Slides ML22146A3472022-02-23023 February 2022 Slides - Pre-Submittal Meeting for February 23 with Nextera Energy Seabrook, LLC Regarding Planned Submittal of License Amendment Request to Update Pressure-Temperature Limits Curves Period of Applicability ML21168A1452021-06-22022 June 2021 Annual Assessment Meeting Slides ML20161A0812020-06-0303 June 2020 Annual Assessment Meeting June 3, 2020 Slides ML19042A1102019-02-13013 February 2019 Presentation Slides - 2019 Seabrook Public Meeting ML18136A4822018-05-0202 May 2018 Annual Assessment Meeting 05-02-2018 Presentation ML18086A7742018-02-21021 February 2018 LOR Program Biennial Inspection 71111.11B Exam Overlap Issues ML17341A0622017-11-17017 November 2017 NextEra Energy Seabrook Presentation Slides - Seabrook Station ASR Methodology LAR: Structural Deformation - LAR 16-03, Methodology and Responses to Rais D2-D8 - for November 17, 2017, Public Meeting ML17310B2322017-11-0707 November 2017 Presentation Slides - NextEra Energy/Fpl - GSI-191 Issue Resolution, Pre-submittal Meeting, September 20, 2017 ML17278A7482017-10-13013 October 2017 Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) ML17283A0402017-10-10010 October 2017 Enclosure 2 - Nrc'S Presentation Slides-Seabrook Station, License Amendment Request, Stage 3 Methodology ML17283A0412017-08-24024 August 2017 Enclosure 3 - Licensee'S Presentation-Seabrook Station, License Amendment Request 16-03 ASR Structural Evaluation Methodology ML17164A2712017-06-0707 June 2017 Presentation Slides for Annual Assessment Meeting 2017 ML16176A0542016-06-21021 June 2016 6/21/2016 - Seabrook Station Annual Assessment Meeting - NRC Presentation Slides (Assessment and ASR Update) ML16168A4122016-06-15015 June 2016 Slides for Public Meeting with NextEra Energy Regarding Seabrook Station ASR License Amendment ML16146A2002016-04-28028 April 2016 License Renewal Application, April 28, 2016, Public Meeting NextEra Presentation ML14190B0432014-07-0909 July 2014 Annual Assessment Meeting Performance Slides - June 24 2014 ML13357A0412013-12-23023 December 2013 Public Meeting on Seabrook Station Testing Program ML13357A0432013-12-23023 December 2013 ASR at Seabrook Station Update on Testing Program ML13357A0462013-12-23023 December 2013 Update on ASR ML13133A2492013-05-29029 May 2013 Slides from May 9, 2013, Meeting with NextEra Energy Seabrook, LLC on Pre-Submittal of a Fixed Incore Detector License Amendment Request ML13066A4882013-03-21021 March 2013 Summary of Meeting Held on February 21, 2013, Between the NRC and NextEra Energy Seabrook, LLS Regarding License Renewal Application, Seabrook Station ML12356A0432012-12-11011 December 2012 Safety Implications and Status of ASR Condition - Public Meeting on 12/11/2012 ML12236A3852012-08-23023 August 2012 Memo Summary of NextEra Energy Seabrook Drop in Visit and Slides, August 22, 2012 ML12132A3442012-05-11011 May 2012 NRC-AERB Bilateral Meeting Slide Presentation (Nro/De), Aerb, India - May 16-17, 2012 ML12131A4312012-05-10010 May 2012 Aam ROP-12 Slides-Safety Performance & Alkali-Silica Reaction - r9 Revised Format ML1211604142012-04-23023 April 2012 Structural Assessment of Seabrook Station - Role of Concrete Material Testing ML1204402842012-02-16016 February 2012 Public Meeting Construction Experiences - Evaluate Impact of Concrete Degradation ML12026A4592012-01-26026 January 2012 EDG Ifr ML11343A4482011-12-0909 December 2011 NextEra Drop in Meeting Summary and Slides from 11-14-2011 Meeting with Region-I SBK-L-11190, Supplement to Request for Closed Meeting to Discuss Proprietary Test2011-09-19019 September 2011 Supplement to Request for Closed Meeting to Discuss Proprietary Test ML11259A0022011-09-15015 September 2011 Meeting Slides Preliminary Site-Specific Results of the License Renewal Environmental Review for Seabrook Station. ML1116500382011-06-0808 June 2011 Aam Slides, June 8, 2011 ML12054A6412011-05-24024 May 2011 Concrete Degradation - Alkali Silica Reaction, W/Handwritten Notes ML1108206992011-03-22022 March 2011 3/22/11 Revised Pre-application Meeting Slides Regarding NFPA 805 License Amendment Request ML1022205712010-08-10010 August 2010 License Renewal Process Overview and Scoping Public Meeting Slides ML1019703702010-07-19019 July 2010 License Renewal Process Overview ML1013901282010-05-17017 May 2010 License Renewal Overview Presentation for Seabrook Station ML1011004582010-04-20020 April 2010 NRC Slides for Seabrook Annual Assessment Meeting, April 14, 2010 ML0927403042009-09-22022 September 2009 NextEra Letter and Slide Presentation to NRC Seabrook Regulatory Conference, Dated 9/22/09 ML0910604982009-04-30030 April 2009 NRC Slides for Annual Assement Meeting, 4/30/09 ML0809300252008-04-0202 April 2008 NRC Slides - Seabrook Aam 2008 ML0710002082007-03-29029 March 2007 Aam Slides for EOC 2006-07 ML0708001192007-03-21021 March 2007 Slides, End of the Presentation, from Seabrook Station Annual Assessment Meeting for EOC 2006-07 ML0727105992006-06-0505 June 2006 Viewgraphs of Use of Ultrasonic Flow Measurement to Determine Reactor Power ML0727106062006-06-0505 June 2006 Viewgraphs of Use of Ultrasonic Flow Measurement to Determine Reactor Power ML0608202482006-03-23023 March 2006 NRC Slides for Public Meeting with FPL Seabrook to Discuss Cy 2005 Performance ML0601300312005-12-16016 December 2005 Meeting Slides, Measurement Uncertainty Recapture Fple/Caldon - NRC Meeting December 16, 2005 2023-06-26
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LAR16-03MethodologyandResponsestoRAIsD2-D8November17,2017SeabrookStationASRMethodologyLAR:StructuralDeformation 2ThefoundationforeverythingwedoaretheValuesandCorePrinciplesofourNuclearExcellenceModel 3*NextEraEnergySeabrook-KenBrowneLicensingManager-JeffSobotkaDesignEngineeringManager-EdCarleyEngineeringSupervisor-JaclynHulbertEngineer-ASRProgramOwner*SimpsonGumpertzandHeger-Dr.SaidBolourchiSeniorPrincipal-Dr.AndrewSarawitSeniorProjectManager*MPR-JohnSimonsGeneralManager 4OverviewofMethodologyDocument*Provides-AnalysisandevaluationapproachforallSeismicCategoryIstructuresandallstages.-Sufficientdetailsprovidedforconsistentapplicationandrepeatabilityforallthreestagesofanalyses.-AcceptancebasedonmeetingtheCodesofrecordassupplemented.-SupplementstotheCodeswithjustifications.-Monitoringparametersandthresholdlimits.-ActionswhenASRdeformationsapproachlimits.*Allowsknowledgeablestructuralengineerstoimplementmethodologyinaconsistentandrepeatablemanner.
5ASREvaluationProcessLicenseAmendmentRequestMethodologyDocumentStructuralAnalysis&EvaluationThresholdLimits*Stage1,2,and3analyses*Materialproperties*RepeatableprocessforStage1,2,and3analyses*Demandcalculations*ComplianttoACI318-71andASMECodeassupplemented*EstablishdesignmarginforpotentialfutureASRexpansionStructuresMonitoringProgram*Monitoringparametersandfrequency*Trending*Actionifapproachingthresholdlimits 6ContentsofMethodologyDocument*CharacteristicsandMeasurementofASR*LoadsandLoadCombinations*AnalysisApproach*AcceptanceCriteria*ASRThresholdLimitsandMonitoring*EvaluationforApproachingThresholdlimits 7LoadsandLoadCombinations*Loadsandfactoredloadcombinationsare-asdefinedinthecurrentUFSARand-supplementedbyLAR16-03toincludeASRloadsandloadfactors.*ASRloadfactorsprovidesafetymarginsconsistentwiththeoriginalcodesofrecord.
8FieldMeasurementsSustainedLoadsCracking*Iscrackingobserved?*Iscrackinglimitexceeded?*Stiffnessreductionduetoaxial,shear,and/orflexuralcracking.MomentRedistribution*LimittoACI318-718.6FactoredLoadsDemand-to-CapacityRatioAcceptanceCriteriaSupplementtoACI318-71*ConsiderationofASRloads*Codeacceptancecriteria*Shear-frictioncapacityformemberssubjectedtonetcompression*Acceptablereductioninflexuralstiffness*StiffnessreductionduetoaxialandshearcrackingEvaluationStageThreeEvaluationProcessCorrelationofAnalysistoFieldObservationsThresholdParameters&Limits*Expansion*In-planeexpansionmeasurements*DistributionofASR*Structuraldeformationmeasurements*StructuralcrackingStructuresMonitoringProgramFEAModelFieldObservationsConcreteBackfillPressure*StiffnessreductionduetoASRexpansionofunreinforcedbackfill*Backfillpressurereduction:*Nostructuralcracks/distress*Overburdenpressure*Confinementstrengthreduction 9MethodologyDocumentSummary*ProvidesdetailedanalysisapproachforallstagesofanalysesdescribedintheLAR16-03.*Allowsknowledgeablestructuralengineerstoimplementmethodologyinaconsistentandrepeatablemanner.
10RAI-D2Request-ProvideadetailedexplanationofhowtheStage3analysismethodswillbeimplementedinaconsistent,repeatablemanner.Identifydeviationsfromthedesigncodeofrecord.Response*MethodologyDocumentestablishesanapproachtoperformaStage3analysisinaconsistent,repeatablemanner.*Supplementstothecodesofrecord-Supplement1-ConsiderationofASRloads-Supplement2-Codeacceptancecriteria-Supplement3-Shear-frictioncapacityformemberssubjectedtonetcompression-Supplement4-Flexuralcrackedsectionproperties-Supplement5-Axialandshearcrackedsectionproperties*UFSARmarkupwillberevisedtoreflectthesesupplements 11RAI-D3Request-ExplainwithsufficienttechnicaldetailhowtheproposedmomentredistributionapproachmeetsspecificrequirementsofACI318-71.Response*TheMethodologyDocumentlimitstheuseofmomentredistributionforallstructurestobeinaccordancewithACI318-71Section8.6.*TheCEBevaluationisbeingrevisedinaccordancewiththeMethodologyDocument.-Eliminatetheuseofmomentredistribution.-Considercrackedsectionproperties.
12RAI-D4Request-Explainwithsufficienttechnicaldetailhowthe"simplifiedmomentredistribution"methodisapplied.Response*AsdiscussedinresponsetoRAI-D3momentredistributionwillbelimitedtoACI318-71section8.6.*TheCEBevaluationisbeingrevisedwithouttheuseofmomentredistributionmethods.AppendixLoftheCEBEvaluationwillbesuperseded.Thesamestructuralmodelandboundaryconditionswereusedinpreviousanalysis.
13RAI-D5(a)Request-ClarifywhatthethresholdfactorrepresentsinStage3analysesandhowthefactorwillbedeterminedforfutureanalyses.Response*ThresholdfactorisdesignmarginexpressedastheamountASRloadscanincreaseandstillmeetACIcriteria.-Thresholdfactorisanoutputoftheevaluation,notaninputtothemethodology.-Auniquethresholdfactoriscalculatedforeachbuildingbasedontheavailablemargin.-Usedtoestablishthresholdlimitsformonitoredparameters.-ThismarginisavailabletoaccountforpotentialfutureASRexpansionwithoutreducingthecodeinherentmarginofsafety.*Thresholdfactormayberevisedbasedonfurtheranalysis,byusingadditionalinspectionandmeasurementdata,and/orusingamorerefinedstructuralanalysismethodwithoutreducingthecodeinherentmarginofsafety.
14Request-Explainifthereisalimitimposedontheextentofanalysisthatcanbeusedtomodifythedemandsuponastructureandifthisimpactsthespecificationofthethresholdfactor.Response*Thresholdfactorisanoutputofanevaluation(seeRAI-D5(a)).*Thereisnolimitonre-evaluationprovidedevaluationsatisfiesACICodeassupplemented.-MomentredistributionislimitedperACICode.*Re-evaluationswoulduseadditionalinspectionandmeasurementdata,and/oruseamorerefinedstructuralanalysismethodinaccordancewiththeMethodologyDocument.*Structuralmodificationmayberequiredtoreestablishmargin.RAI-D5(b) 15RAI-D6Request-Clarifywhetherthe100-40-40methodwillbeimplementedinequivalentstaticanalysesforASR-affectedstructures.Ifso,providethetechnicalbasisforusingthemethodinconjunctionwithequivalentstaticanalysis.Response*The100-40-40methodwillbedeletedfromtheproposedmethodology-TheCEBevaluationisbeingrevisedtousethesquare-root-of-the-sumof-the-squares(SRSS)methodinconjunctionwiththeequivalentstaticanalysismethodconsistentwiththeoriginaldesigncalculationapproach.*UFSARmarkupswillberevisedtoremovereferencesto100-40-40.
16RAI-D7(a)Request-Provideanexplanationofhowmultipleloadcomponents(e.g.,axialforceandmoment)arecombinedtoperformcodeinteractionchecks.Response*TheMethodologyDocumentonlyallowstheuseofSRSSmethodforcalculationofseismicdemands.-TheCEBevaluationisbeingrevisedwithouttheuseofthe100-40-40method.*Forconditionswithmultiplecomponents(e.g.,axialforceandmomentP-Minteraction),theMethodologyDocumentrequires-AllcomponentsarecalculatedbytheSRSSmethod.-TheSRSScalculated+/-Pand+/-MwillbeusedforP-Minteractionevaluation.
17RAI-D7(b)Request-ExplainwhythecombinationofEO,andHeinsomecasesislessthanEO,alone.IftheexplanationassumesaphaserelationshipbetweenEO,andHe,providethetechnicalbasisfortheassumedphaserelationship.Response*FortheCEBcalculation,theseismicinertiaforce,EO,andsoilpushingtheembeddedpartoftheCEB,He,aremodeledin-phase.*In-phasemodelingmaximizesbaseshearandoverturningmomentwhenthestaticequivalentmethodandtheSRSSresponsesareused.*Theout-of-planebendingresponseinCEBisinfluencedbythepresenceoflargepenetrations,andlocationofappliedloadsincludingdynamicsoilloads.Thedynamicsoilresponseandinertialresponsemaycounteracteachotheratlimitedsmalllocations.*Analysesconsiderseismicmotioninoppositedirections.Resultsateachlocationareenveloped,thereforethelocalizedareasarecovered.
18RAI-D8Request-Explain,withsufficienttechnicaldetail,howtheproposedmethodofevaluationforASR-affectedstructuresverifiesthatthestressesandstrainsintheconcreteandreinforcementremainwithinelasticlimitsbasedonrealisticbehaviorundernormaloperating(service)loadconditions,includingASRload.Response*CompliancewiththeACICode,assupplementedbytheMethodologyDocument,ensuresstructuresbehaveelastically,andtherebarandconcretestressesandstrainsremainwithinacceptablelimits.
19RAI-D8Response(continued)*Performedtwoparametricstudiestoexaminerebarstresses.-Scope1.EffectofincreasingASRexpansionformembersubjectedtoexternalload.2.ImpactofincreasingloadonASR-affectedmember.-PreliminaryresultsfordiscussionRebarstressesremaininelasticrangefornormaloperating(service)loads.*AssessedrebarstressesforSeabrookstructures.-ScopeStructuresevaluatedtodate-PreliminaryresultsfordiscussionStressesandstrainsintheSeabrookstructuresareshowntobewithinelasticlimitsundernormaloperatingloadconditions(unfactoredloads)whenASRloadsareconsidered.
20-800-600-400-2000200400-400-300-200-1000100200300400Axialforce(kip/ft)Moment(kip-ft/ft)P-MinteractionUltimatestrengthServicestressCaseACaseBCaseCCaseDCaseECaseFCaseGCaseHCaseICaseJCaseKCaseLP-MCombinationsCasesParametricStudy1-Stressintensionrebaroftypical2ftthickmembersubjectedtoP-MandincreasingASRstrainPreliminaryResults-verificationpending.
21ParametricStudy1-Stressintensionrebaroftypical2ftthickmembersubjectedtoP-MandincreasingASRstrainFactoredloadServiceload-1001020304050607000.511.522.5Rebar1stress(ksi)InternalASR(mm/m)CaseACaseBCaseCCaseDCaseECaseFInternalASRonlyfy=60ksi-1001020304050607000.511.522.5Rebar1stress(ksi)InternalASR(mm/m)CaseGCaseHCaseICaseJCaseKCaseLInternalASRonlyfy=60ksi*ThetensilestressintherebarincreasesafterASRexpansionissufficienttoclosestructuralcracksaroundthetensilerebar.*Forsectionswithalreadyhighlevelsofexternalload(factoredlevelloads),highlevelsofASRareneededtocauseadditionaltensilestressinrebar.PreliminaryResults-verificationpending.
22ParametricStudy2-Stressintensionrebaroftypical2ftthickASR-affectedmemberwithincreasingmoment*Self-strainingconcretecompressivestresseffectwillunloadbeforerebartensilestressincreases.Thisisbecausetheconcretesectionismuchstifferthanthesteelbasedonthereinforcementratio.*Stressesandstrainsinsteelrebararelessthantheelasticlimitsatserviceloadconditions,providedthatASRstrainislessthansteelyieldstrain(2mm/m).PreliminaryResults-verificationpending.-2002040600204060Rebar1stress(ksi)Moment(kip-ft/ft)0mm/m0.5mm/m1mm/m1.5mm/m2mm/m 23StressesinSeabrookStructureduetoServiceLoad*Thestressesforthestructuresthatarecompletedorbeingcompletedhavebeencalculatedforthefollowingtwoserviceloadconditions:-insitucondition:D+L+E+To+Sa-insituconditionplusoperatingbasisearthquakeandpotentialfutureASRexpansionuptothresholdlimit:D+L+E+To+Eo+He+FTHR*Sa*Fortheaboverealisticunfactoredserviceloadcombinations,stressesinrebararebelowyield,andconcretestrainsarelessthan0.001andarelessthanthe0.003ACICodemaximumusablestrainforconcretecompression 24Maximumsteelrebartensilestressandconcretecompressivestressforinsitucondition:D+L+E+To+SaStructureAnalysisStageASR(mm/m)ComponentMaximumtensilestressinrebar(ksi)Maximumcompressivestressinconcrete(ksi)MaximumcompressivestraininconcreteCRMAI30.99BaseMat27.8-0.28-0.00009RHR30.75Eastexteriorwall47.0-1.8-0.00058CSTE20.43Tankwall16.0-0.66-0.00018CEHMS10.72Eastwingwall31.3-0.78-0.00025CEVA10.31Baseslab32.8-0.88-0.00028CEB30.60WallbetweenMech.&Elec.Penetration24.6-2.19-0.00065WPC/PH20.24Northwall6.5-0.49-0.00016EMH10.25W13/W15walls7.3-0.03-0.00001PreliminaryResults-verificationpending.
25StructureAnalysisStageASR(mm/m)ComponentMaximumtensilestressinrebar(ksi)Maximumcompressivestressinconcrete(ksi)MaximumcompressivestraininconcreteCRMAI30.99x1.4BaseMat39.1-0.37-0.00012RHR30.75x1.2Eastexteriorwall56.5-2.1-0.00067CSTE20.43x1.6Tankwall26.7-1.11-0.00031CEHMS10.72x1.5Eastwingwall41.6-1.52-0.00049CEVA10.31x3.0Baseslab44.0-1.08-0.00035CEB30.60x1.3WallbetweenMech.&Elec.Penetration44.0-2.8-0.00091WPC/PH20.24x1.8Northwall23.2-0.85-0.00027EMH10.25x3.7W13/W15walls26.8-0.11-0.00004MaximumsteelrebartensilestressandconcretecompressivestressforinsituconditionplusoperatingbasisearthquakeandfutureASRexpansionuptothresholdlimit:D+L+E+To+Eo+He+FTHR*SaPreliminaryResults-verificationpending.
26Summary*TheMethodologyDocumentprovidestheapproachforperformingallthreestagesofanalysesdescribedintheLARcanbeimplementedinaconsistentandrepeatablemannerbyaknowledgeablestructuralengineer.*UseofmomentredistributionforstructureswillbeinaccordancewithACI318-71Section8.6.*The100-40-40methodwillnotbeconsideredforcalculatingseismicdemandsforanySeismicCategoryIstructuresatSeabrook.TheUFSARmarkupwillberevisedtousetheoriginalSRSSmethods.*CompliancewiththeACICode,assupplementedbytheMethodologyDocument,ensuresstructuresbehaveelastically,andtherebarandconcretestressesandstrainsremainwithinacceptablelimits.
27BuildingDeformationAnalyses(1of2)StructureSchedulePercentCompleteIncorporatedtoSMPCondensatewaterstoragetankComplete100%CompleteContainmentenclosurebuilding(revision)4Q201780%Complete**2/2018(Rev1)**ContainmentenclosureventilationareaComplete100%CompleteContainmentstructureComplete100%CompleteEquipmenthatchmissileshieldComplete100%CompleteControlroommake-upairintakeComplete100%CompleteElectricalcabletunnelsComplete100%CompletePre-actionvalvebuilding4Q201780%2/2018RHRequipmentvaultComplete100%CompleteContainmentinternalstructures4Q201790%2/2018Mainsteamandfeedwatereastpipechase4Q201770%2/2018HydrogenrecombinerstructureStage1Safety-relatedelectricalductbanksandmanholes1Q201880%4/2018Stages2and3Safety-relatedelectricalductbanksandmanholes1Q201840%4/2018Emergencyfeedwaterpumpbuilding1Q201850%4/2018Fuelstoragebuilding4Q201780%2/2018Structuresthatare/expectedtobeStage3 28BuildingDeformationAnalyses(2of2)StructureSchedulePercentCompleteIncorporatedtoSMPControlBuildingDieselGeneratorBuilding1Q201830%4/2018MechanicalPenetrationPersonnelhatcharea1Q201840%4/2018Mainsteamandfeedwaterwestpipechase4Q201790%2/2018Primaryauxiliarybuilding4Q201730%2/2018Servicewatercoolingtowerincl.switchgearrooms1Q20184/2018Servicewateraccess(inspection)vault1Q20184/2018Circulatingwaterpumphouse(belowel.21')Servicewaterpumphouse2Q20187/2018Piping(RCA)Tunnels2Q20187/2018Tankfarmarea2Q20187/2018Wasteprocessingbuilding2Q20187/2018Structuresthatare/expectedtobeStage3 29Questions?