Prepared By:-

O.B DEVELOPERS

(STRUCTURE AUDIT AGENCY)

F 14, Kalkaji Main Road , New Delhi-110019

Email- strutureauditagency@gmail.com

Call-+91-9717924616

1.  INTRODUCTION

Deflection testing adopted as per M/s O.B Developers.  and it is used only to evaluate whether a structure or a portion of a structure satisfies the  deflection safety requirements

2.  SCOPE

To evaluate whether a structure or a portion of a structure satisfies the deflection safety requirements

2.1  Some reasons why we need the load testing:

• Due to long unsupported span it’s important to check weather structure deflection is in permissible limit of deflection or not as per data provided by M/s xxxxxx.
• Due to heavy load on top floor.

3.  REFERENCES:-

M/s xxxxxx provided data for deflection locations and permissible limit.

      Procedure for Deflection Check Test

1. Platform preparation
2. Dial gauge assembling
3. Initial reading before support removal
4. Reading after some time of  support removal

4.1 Platform preparation

     Attachment of wire to existing beam

• Prepare a hook using 16mm or more diameter bar and weld it to the existing beam at all the location where dial gauge need to be fixed & Attach the clutch wire (2mm diameter) with the hooks

 Platform for dial gauge

1. Prepare a leveled platform below the location of dial gauge to be fixed and placed a MS plate 300X300X20 minimum over the platform prepared. Height of dial gauge to be fixed as per site condition. Also a top platform of 300x300x10 needs to be prepared for fixing the wire with dial gauge.

4.2 Dial gauge fixing

       Dial gauge fixing

1. Fix dial gauge on MS plate using magnetic stand.
2. Fix the 2mm wire rope with top MS plate and fix the MS plate with dial gauge in a such a way that the value of dial gauge should be more than 0.5mm.

4.3 Initial reading before support removal

    Initial reading of the dial gauge to be noted before removal of the vertical props

4.4 Reading after removal of support

Reading of the dial gauge to be noted immediately after removal of the vertical prop

4.5 Reading after certain time of removal

Reading of the dial gauge to be noted after each 2 hour from the time of removal of support.

5 Dial Gauge Arrangements

6 Testing Result

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A  New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  13/04/2021	Time:- 11:07 am	Temp:- 36 C
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	Initial Reading Before Support Removal	3.52	5.58	5.89	5.22	7.14	5.92	6.18	36 C
11:07AM
2	Reading Immediately After Support Removal Between D4 & D5	4.09	5.88	6.19	7.48	9.64	7	6.96	37 C
1:00PM
3	Reading Immediately After Support Removal Between D5 & D6	4.58	6.09	7.16	8.69	11.94	9.21	8.25	38 C
2:00PM
4	Reading Immediately After Support Removal Between D6 & D7	5.15	6.25	7.16	8.69	11.94	9.21	8.25	37 C
3:30PM
5	Reading Immediately After Support Removal Between D2 & D3	6.16	7.57	11.49	10.78	13.25	10.38	8.64	34 C
4:30 PM
6	Reading Immediately After Support Removal  left of D7	7.26	7.96	12.13	11.83	14.88	12.71	12.22	29 C
5:40 PM
7	Reading Immediately After Support Removal  Right of D2	8.62	10.39	13.67	13.01	15.62	13.17	12.32	29 C
7:00 PM

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  14/04/2021	Time:- 11.00 am	Temp:- 30 C
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	DAY 2 Reading After Support Removal	10.27	11.97	14.61	16.08	18.08	15.55	14.62	30 C
11.00AM
2	DAY 2 Reading After Support Removal	11.3	12.42	15.39	17.06	19.65	16.78	15.98	31 C
1.05PM
3	DAY 2 Reading After Support Removal	11.9	12.65	16.2	19.01	20.23	17.34	16.45	30 C
3.00PM
4	DAY 2 Reading After Support Removal	11	12.91	15.79	18.4	18.91	16.24	15.18	29 C
4.30PM

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  15/04/2021	Time:- 11.00 am	Temp:- 30 C
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	DAY 3 Reading	9.15	11.71	14.68	17.79	18.13	15.29	14.59	30 C
11:00AM
2	DAY 3 Reading After  Removal of support connected to 2nd floor (left of D7)	10.78	12.21	15.77	19.67	20.68	17.86	16.97	33 C
1:45PM
3	DAY 3 Reading After  Removal of support connected to 3nd floor (extreme end  of D7)	11.39	13.12	16.31	20.16	21.45	18.64	17.81	30 C
3:20PM
4	DAY 3 Reading After  Removal of support connected to 3nd floor (extreme end  of D2)	12.38	13.69	17.15	21.36	22.15	19.08	18.01	29 C
4:10PM

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A  New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  16/04/2021
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	Day 4 observation reading	11.54	14.31	17.71	20.26	21.73	18.76	18.00	30C
11:07PM
2	Day 4 observation reading	12.52	14.46	18.01	20.52	22.52	19.10	18.60	36 C
1:20PM
3	Day 4 observation reading	12.87	14.69	18.40	20.93	22.76	19.41	19.04	33C
3:10PM
4	Day 4 observation reading	10.74	12.83	16.43	18.95	19.93	16.62	16.58	29C
4:40PM

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A  New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  17/04/2021	Time:3:00pm
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	Day 5 observation reading	11.55	13.21	17.16	19.41	22.08	17.26	17.32	35C
3:00PM

Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  19/04/2021	Time:- 03.00 PM	Temp:- 35 C
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	DAY 7 observation READING	12.78	14.52	19.65	21.30	25.40	19.45	20.19	35 C
3.00PM

7 Conclusion
Slab Deflection Test Wing A
Location- Xxxxxxx Pharma, …,  WING A  New …
Slab Marking- Truss D/Truss 7 Cantilever Slab
Testing Slab :- S1/Xxxxxxx/…/Deflection
Date:-  13-19 April 2021
S.No	Particular	Dial Gauge ( value in mm) Marking & Time
D1/Time	D2/Time	D3/Time	D4/Time	D5/Time	D6/Time	D7/Time	Temp
1	Initial Reading before support removal (day-1)	3.52	5.58	5.89	5.22	7.14	5.92	6.18	36C
11:07PM
2	Day 1 reading after support removal between D4 &D5,D5&D6,D6&D7,D2&D3, left of D7 & right of D2	8.62	10.39	13.67	13.01	15.62	13.17	12.32	29C
7:00PM
3	Total deflection on site till before night of day -1	5.1	4.81	7.78	7.79	8.48	7.25	6.14
maximum deflection on site is  8.48
4	Day 2 observation after above support removal	11	12.91	15.79	18.4	18.91	16.24	15.18	29C
4:40PM
5	Total deflection on site till before night of day -2	7.48	7.33	9.9	13.18	11.77	10.32	9
maximum deflection on site is  13.18
6	Day 3 reading after removal of support connected to 2nd floor(left of D7),& 3rd floor(extreme end of D7 & D2)	12.38	13.69	17.15	21.36	22.15	19.08	18.01	31C
4.10PM
7	Total deflection on site till before night of day-3	8.86	8.11	11.26	16.14	15.01	13.16	11.83
maximum deflection on site is 16.14
8	Day 4 observation after all supports are removed	10.74	12.83	16.43	18.95	19.93	16.62	16.58	29C
4:40PM
9	Total deflection on site till before night of day-4	7.22	7.25	10.54	13.73	12.79	10.7	10.4
maximum deflection on site is 13.73
10	Day 5 observation after all supports are removed	11.55	13.21	17.16	19.41	22.08	17.26	17.32	35 C
3.00PM
11	Total deflection on site till day -5	8.03	7.63	11.27	14.19	14.94	11.34	11.14
maximum deflection on site is  14.94
12	Day 7 observation after all supports are removed	12.78	14.52	19.65	21.30	25.40	19.45	20.19	35 C
3.00PM
11	Total deflection on site till day -7	9.26	8.94	13.76	16.08	18.26	13.53	14.01
maximum deflection on site is  18.26

8 Testing photograph

Digital dial gauge and analog dial gauge