Avant Garde Fashion Ltd. Ring Shine Textiles Ltd.

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Jerome Kory Eaton
6 years ago
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1 Avant Garde Fashion Ltd. Ring Shine Textiles Ltd. Plots & , Extension Area, DEPZ, Ganakbari, Savar, Dhaka, Bangladesh ( N, E) 7 May

2 2 Observations

3 3 Structural design of undocumented vertical extension

The latest permit drawing does not show a steel structure at roof level, although a similar

4 Steel shed at roof level South façade East façade No structural drawings or design information was available for review for steel shed in southeast corner of building. The latest permit drawing does not show a steel structure at roof level, although a similar structure was indicated on an earlier drawing from Structural design of undocumented vertical extension

the span of the frame and the building's exposure to 210kph wind loading, as per Contactor s

5 Approx mm deep b = 100mm d = 200mm Portal frame rafters and stanchions appear to be shallow given the span of the frame and the building's exposure to 210kph wind loading, as per Contactor s report. Unstiffened connections with no haunches provided at eaves. Capacity of stanchion/rafter moment connection appears to be inadequate. 5 Structural design of undocumented vertical extension

Steel cables (ties) are connected to wall above stair core.

6 No vertical cross bracing provided No vertical bracing is provided in side walls of shed to coincide with roof cross bracing. Steel cables (ties) are connected to wall above stair core. Connection details between purlins (acting as struts) and wall unclear. 6 Structural design of undocumented vertical extension

7 7 Non-engineered outbuildings

West canteen shed appears to have relatively shallow sections for portal frame

8 West canteen shed East canteen shed Neither of the canteen sheds have an engineered stability system in the longitudinal direction; no roof or vertical bracing apparent. West canteen shed appears to have relatively shallow sections for portal frame rafter/stanchion. Lightweight roofs with overhanging sections susceptible to wind uplift. 8 Non-engineered outbuildings

Bolt holes provided but no bolts observed.

9 Canopy leading to west canteen shed Unclear connection details between purlins and support steelwork. Bolt holes provided but no bolts observed. Kitchen area Inadequate holding down details susceptible to wind uplift. 9 Non-engineered outbuildings

10 Washing area Eastern side wall Struts supporting roof of washing area apply out of plane load to masonry wall. 10 Non-engineered outbuildings

11 11 Concentrated areas of high loading

eastern side of building and at first floor level in western side of building.

12 1.5m 2m 1.5m 2m Mixed storage at first floor (west) Storage is generally at ground floor level in eastern side of building and at first floor level in western side of building. Storage is generally well managed, with some concentrated areas of high loading. Building Engineer indicates structure designed for 5kPa imposed load throughout. 12 Concentrated areas of high loading

observed at roof level along west side of main building.

13 East side Approx. 1.3m Western side of roof of main building West side Plastic water tanks observed at roof level along west side of main building. Large reinforced concrete water tank on roof of stair core between east and west sides of main building. 13 Concentrated areas of high loading

Washroom floor finished level lower than main production floor level.

14 Finished floor level in washroom lower than main floor Solid masonry wall supported on first floor slab off column/beam line. Washroom floor finished level lower than main production floor level. Build up in washroom could not be determined. 14 Concentrated areas of high loading

15 Problems Observed 1. Structural design of undocumented vertical extension 2. Non-engineered outbuildings 3. Concentrated areas of high loading 15

16 Item 1 and actions Structural design of undocumented vertical extension Priority 1 (Immediate - Now) Priority 2 (within 6-weeks) Priority 3 (within 6-months) None required. None required. Building Engineer to review the structural design of the undocumented steel shed structure at roof level. Particular attention to be paid to i) member strength and stiffness ii) connection details and iii) lateral stability. As built structural drawings to be completed/updated to include steel shed at roof level. As built structural drawings to be updated, as required, following any future modifications to the building or strengthening works to structural elements. 16

17 Item 2 and actions Non-engineered outbuildings Priority 1 (Immediate - Now) Priority 2 (within 6-weeks) None required. None required. Priority 3 (within 6-months) Building Engineer to review the adequacy of non-engineered structures throughout complex. Particular attention should be paid to the stability of these structures and connection details. 17

18 Item 3 and actions Concentrated areas of high loading Priority 1 (Immediate - Now) Priority 2 (within 6-weeks) Priority 3 (within 6-months) None required. None required. Building Engineer to develop load plans for the main production building accounting for usage, floor build ups, solid partition walls, material weight and areas of concentrated loading. Factory management to implement load plans. 18

ABA Fashions Ltd. Plot #9, Block F, Tongi, Gazipur-1710 ( N, E) 08 MARCH 2014

ABA Fashions Ltd. Plot #9, Block F, Tongi, Gazipur-1710 (23.885176N, 90.399821E) 08 MARCH 2014 1 2 Observations 3 Highly stressed columns Cursory calculations indicate column at a high working stress.