ML19257A375
| ML19257A375 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 11/15/1979 |
| From: | Yundt C PORTLAND GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19257A371 | List: |
| References | |
| SPT-51-01, SPT-51-1, NUDOCS 8001030883 | |
| Download: ML19257A375 (10) | |
Text
b-s Apeux 2 TROJAN NUCLEAR PLANT PORTLAhT GENERAL ELECTRIC COMPAh7 SPECIAL PLANT TEST PROCEDURE - SPT-51 TEST OF MASONRY BOND TENSION TO CONCRETE CORE IN MASONRY BLOCK WALLS Nove:nber 15, 1979 Revision 0 Approved by Original signed by C. P. Yundt Date II-31-79 1927 092
$ 001030W
I SPT-51 Revision 0 TABLE OF CONTEh7S Page Section 1
Objective
?-1 2
Acceptance Criteria 2-1 3
Prerequisites 3-1 4
Precautions 4-1 5
Instructions 5-1, 5-2 6
Data Sheet 6-1 7
Exceptions and Notes 7-1 i
1927 093
i SPT-51 Revision 0 1.0 OBJECTIVES 1.1 To determine tensile bond strength of masonry block walls (both composite and 16-inch or less block walls).
Page 1-1 1927 094
SFT-51 Revision 0 2.0 ACCEPTANCE CRITERIA 2.1 Apply load at required test points until core fails or load reaches 30,000 pounds.
W Page 2-1 1927 095
SPT-51 Revision 0 3.0 PREREQUISITES 3.1 Hydraulic jack test stand fabricated.
3.2 Hydraulic jack test calibrated (2 gauges).
3.3 Calibrated dial gauges available for use (optional).
Page 3-1 1927 096
SPT-51 Revision 0 4.0 P,RECAUTIONS 4.1 Ens.:re core drill is marked so that core depths does not exceed width of block plus 1 to 1.5 inches.
4.2 Area radiation moaltors in vicinity may be affected by core drilling.
Notify Shif t Supervisor before commencement of core drilling.
4.3 Monitor shield salls after plug has been removed for possible changes in radiation levels.
Page 4-1 1927 097
SPT-51 Revision 0 5.0 INSTRUCTIONS TESTING PROGRAM MASONRY BOND TENSION TO CONCRETE CORE 5.1 Four tests shall be run.
5.2 Two tests shall be run with holes located a follows:
l Center of 6" Bolt Circle l
I Block Joint (Typ) 3/4 Hole (Typ) o -'
5.3 Two tests shall be run with holes located as follows:
I Block Joint (Typ) l N/
i Center of Block 3
I 3/ 4" Hole (Typ) l o
l I
I L.__
5.4 A 12"-diameter core shall be drilled concentric around bolt circle center line. The core shall be cut into the concrete fill between 1" and 1-1/2".
5.5 The hole chall be located to miss block reinforcing. The center of core shall be concentric with above bolt circle.
5.6 Ne masonry block bearing plate shall be set with 3-3/4" phillips velge anchors. The wedge anchors shall be set using manufacturer's recommended torque valves. One test shall be conducted ue,ing Phillips Self-Drilling Bolts and equal to those used during origin 41 plant construction.
Page 5-1 1927 098
SPT-51 Revision 0 5.7 The jack assembly shall be set such that the 1" threaded rod shall be centered on the block bearing plate.
5.8 The jack assembly shall be torqued snug before the jack assembly plate bolts are drilled and installed.
5.9 Af ter the jack assembly is installed the jack asseubly threaded rod shall be backed off to the zero reading rod tension.
5.10 The testing shall be performed in four steps.
Step 1: Apply 5,000 pounds load.
Relieve load.
Repeat load cycle four additional times.
Step 2: Apply 10,000 pounds load.
Relieve load.
Repeat load cycle four additional times.
Step 3: Apply 15,000 pounds load.
Relieve load.
Repeat load cycle four additional times.
Step 4: Apply load to failure or 30,000 pounds, whichever comes first.
5.11 After failure the amount of load shall be recorded. Pictures of the failed core shall be taken and the failed core described.
5.12 Repair vall using non-shrink grout.
Page 5-2 1927 099
SPT-51 Revision 0 Date DATA SHEET Time Start A separate data sheet will be completed for each core drill specimen.
6.1 Location of core drill specimen:
6.2 Type of bolt pattern:
6.3 Serial No. hydraulic jack:
Date gauge (s) calibrated:
inches.
6.4 Depth of core drilled:
inches.
Diameter of core:
Calculated area of core:
square inches.
6.5 5,000 lbs.
10,000 lbs.
15,000 lbs.
TEST STEPS Measured Measured Measured Measured Deflec-Deflec-Deflec-De flec-Initial tion Initial tion Initial tion Initial tion Apply (1)
Load Relieve Apply (2)
Load Relieve Apply (3)
Lead Relieve Apply (4)
Load Relieve Apply (5)
Load Relieve l
6.6 Load applied at failure:
or maximum load reached without failure:
Page 6-1 1927 l00
SPT-51 Revision 0 7.0 EXCEPTIONS AND NOTES r
Page 7-1 1927 101