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Project: SAIGON CENTRE PHASE 2&3 PHASE 1 A&A WORK

RESPONSE TO INSTRUCTION OF CONSULTANT RE: BROKEN BEAM SOFFIT

Comment #1

HBCs response:

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Comment #2

HBCs response:

- We conducted testing for one bolt at top (out of 4 bolts).

- There is not any crack found after testing.

- Testing result:

+ The connection passed the test (required testing tensile force 85% strength of M16 8.8 106.7 kN)

+ Concrete is not broken or cracked

Figure 1. Location of tested bolt

Figure 2. Site quick report of testing for bolt #3

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Comment #3

HBCs response:

- There is not any crack line found.

Bottom side

Side 1 face

Side 2 face

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Comment #4

HBCs response:

We have already conducted UPV test.

Test result:

- Horizontal direction: average pulse velocity 3.28 km/s (distance 40 cm, concrete grade C30)

- Vertical direction: average pulse velocity 3.32 km/s (distance 60 cm, concrete grade C30)

(See Appendix 2 for detail data).

3

2

1

6

5

4

9

8

7

12

11

10

18

12

9

6

3

15

11

8

5

2

14

10

7

4

1

13

17 16

6

Bolts

Point of UVP3B15'1

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Actual picture of testing work:

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APPENDIX 1: SITE QUICK REPORT OF BOLT ANCHORAGE TESTING

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APPENDIX 2: SITE QUICK REPORT OF UPV TESTING

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