ML19262A948
| ML19262A948 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 11/13/1979 |
| From: | Yundt C PORTLAND GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19262A944 | List: |
| References | |
| SPT-51, NUDOCS 7912110344 | |
| Download: ML19262A948 (10) | |
Text
.
Awamx 2 TROJAN NUCLEAR PLLNT PORTLAND GENERAL ELECTRIC COMPANY SPECIAL PLANT TEST PROCEDURE - SPT-51 TEST OF MASONRY BOND TENSION TO CONCRETE CORE IN MASONRY BLOCK WALLS November 15, 1979 Revision 0 Approved bp Original signed by C. P. Yund:
Date II - G - 7 9 I
1528 173
@I1((63kS
Revision 0 TABLE OF CONTENTS Section Page 1
Objective 1-1 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 1
1528 174
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).
+
i Page 1-1 1528 175
SPT-51 Revision 0 2.0 ACCEPTANCE CRITERIA 2.1 A 1 1 at required test points until core fails or load reaches 4
e Page 2-1 1528 176 be-
Revision 0 3.0 PREREQ'J1 SITES 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 1528 177
SPT-51 e
Revision 0 4.0 PRECAUTIONS 4.1 Ensure core drill is marked so that core depths does not exceed width of block plus 1 to 1.5 inches.
4.2 Area radiation monitors in vicinity may be affected by core drilling.
Notify Shif t Supervisor before commencement of core drilling.
4.3 Monitor raield valls after plug has been re=oved for possible changes
~
in radiation levels.
Page 4-1 1528 178
SPT-51 Revision 0 5.0 INSTRUCTIONS TESTING PROGRAM MASONRY BOND TENSION 10 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)
I l
Center of Block I
l o
3/4" Hole (Typ) l l
3 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 shall be located to miss block reinforcing. The center cf core shall be concentric with above bolt circle.
5.6 The masonry block bearing place shall be set with 3-3/4" phillips vedge anchors. The wedge anchors shall be set using manufacturer's reccmmended torque valves. One test shall be conducted using Phillips Self-Drilling Bolts and equal to those used during original plant construction.
Page 5-1 1528 179
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 assembly threaded rod shall be backed off to the zero reading rod tension.
5.10 The testing shall be perfor:ed in four steps.
Step 1: Apply 1,000 pounds load.
Relieve load.
Repeat load cycle four additional cines.
Step 2: Apply 10,000 pounds load.
Relieve load.
Repeat load cycle four additional ti=es.
Step 3: Apply 15,000 pounds load.
Pelieve load.
R2 peat load cycle four additional ti=es.
Step 4: Apply load to failure or 30,000 pounds, whichever comes first.
5.11 After failure the anount 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 1528 180
Revision 0 i
DATA SHEET Date 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 psttern:
6.3 Serial No. hydraulic jack:
Date gauge (s) calibrated:
6.4 Depth of core drilled:
inches.
Diameter of core:
inches.
Calculated area of core:
square inches.
6.5 5,000 lbs.
10,000 lbs.
15,000 lbs.
TEST STEPS Measurec Measured l Measured Measured Deflec-Dellec-Deflec-Deflec-Initial tion Initial tion Initial tion Initial tion Apply (1)
Load Relieve Apply
~
(2)
Load Relieve Apply (3)
Load Relieve Apply (4)
Load Relieve Apply (5)
Load Relieve 6.6 Load applied at failure:
or maximum load reached without failure:
Page 6-1
} f)2b
SFI-51 Revision 0 7.0 EXCEPTIONS iND NOTES Page 7-1 1528 182
- -. - _ _