1

Tangon Knit-Wear LtdAlmamun Garments Ltd

242/1 Deobhog, Pucca Road, Narayanganj, Bangladesh(+23.6122N, 90.49965E)

21 May 2014

2

Observations

3

Columns throughout the building appear to be stressed to a high level and require immediate

review including preparation of a Detail Engineering Assessment

4Column Strength

Checked Ground Floor Column –Brick Chips

Floor Plan (Typical)

Cursory calculations indicate that columns are stressed to a high level and require immediate review.

Building Engineer to perform detailed calculations including a Detail Engineering Assessment (see attached scope) and concrete tests to prove adequacy of column sizes, and (if required):- Reduce loads by vacating floors- Reinforce columns

Existing reinforcement in columns to be verified on site by Building Engineer

Stairs

Stairs

Stairs

5

Damage to concrete column at 2nd floor level

6

Damaged Column on 2nd Floor

Building Engineer to review damaged column at 2nd floor level and determine reason for cracking. Column to be made good to original condition. Temporary support to be provided, if required by Building Engineer, to reduce loading on column.

7

Design check on structure supporting roof top water tank

8Structural Support to Roof Water Tank

Concrete water tank on roof of Tangon Knit-Wear Ltd

Building Engineer to review structural support to concrete water tank and confirm the adequacy of this support.

Some evidence of cracking below the water tank was noted. The tank appears to be supported on concrete plinths directly to a concrete slab.

9

Management of floor loads

10

Load Management

Building Engineer to prepare controlled loading plans, based on floor slab and column capacity, for all floors which will designate allowable storage density and where storage may be placed. Typical Localised Storage Loads

Accessories Store

11

Structural adequacy of steel roof support frame to 5th floor

12

Steel Roof to 5th Floor

Building Engineer to check adequacy of the 5th floor steel roof structure and connections for code specified live load and wind loads

13

Missing drawings and discrepancies between structural details provided and the as-

constructed building

14

Missing drawings and discrepancies

Column sizes as constructed are smaller than shown on the drawings.

Grids dimensions as constructed do not fully correspond with the drawings.

No permit or structural details available for Almamun Garments Ltd areas.

Building Engineer to update drawings to match as constructed structure.

Building owners to collate all permit and structural drawings for review by Building Engineer to ensure that these correspond with the as constructed structure.

Typical Floor Plan – Tangon Knit Wear Ltd

15

Priority Actions

16

Problems ObservedITEM 1: Columns throughout the building appear to be stressed to a high level and require immediate review

ITEM 2: Damage to concrete column at 2nd floor level

ITEM 3: Design check on structure supporting roof top water tank

ITEM 4: Management of floor loads

ITEM 5: Structural adequacy of steel roof support frame to the 5th

floor

ITEM 6: Missing drawings and discrepancies between structural details provided and the as-constructed building

17

Item No. Observation Recommended Action Plan Recommended Timeline

1

Columns throughout the building appear to be stressed

to a high level and require immediate review

Factory Engineer to review design, loads and column stresses in all columns in the building

Immediate - Now

2

Columns throughout the building appear to be stressed

to a high level and require immediate review

Verify insitu concrete strength either by 100mm diameter cores or existing cylinder strength data for cores from 4 columns . Verify reinforcement and grade of steel reinforcement used.

Immediate - Now

3

Columns throughout the building appear to be stressed

to a high level and require immediate review

A Detail Engineering Assessment of the entire building to be commenced, see attached Scope.

Immediate - Now

4

Columns throughout the building appear to be stressed

to a high level and require immediate review

Detail Engineering Assessment for the entire building to be completed.

6-weeks

5

Columns throughout the building appear to be stressed

to a high level and require immediate review

Produce and actively manage a loading plan for all floor plates within the factory giving consideration to floor capacity and column capacity.

6-weeks

6

Columns throughout the building appear to be stressed

to a high level and require immediate review

Continue to implement load plan 6-months

18

This Schedule develops a minimum level of information, Analysis and testing expected as part of a Detail Engineering Assessment.The Building(s) have been visually assessed and it is deemed necessary that a detailed engineering assessment be carried out by a competent Engineering Team employed by the factory Owner. This Request should be read in conjunction with the BUET developed Tripartite Guideline document for Assessment of Structural Integrity of Existing RMG Factory Buildings in Bangladesh (Tripartite Document), the latest version of this document should be referenced. T his document also gives guidance on required competency of Engineering Team.

We expect that the following will be carried out:1. Development of Full Engineering As-Built Drawings showing Structure, loading, elements, dimensions , levels, foundations and framing on Plan,

Section and Elevational drawings .2. The Engineering team are to carry out supporting calculations with a model based design check to assess the safety and serviceability of the building

against loading as set out in BNBC-2006, Lower rate provisions can be applied in accordance with the Tripartite Guidelines following international engineering practice, justification for these lower rate provisions must be made.

3. A geotechnical Report describing ground conditions and commenting on foundation systems used/proposed.4. A report on Engineering tests carried out to justify material strengths and reinforcement content in all key elements studied.5. Detailed load plans shall be prepared for each level showing current and potential future loading with all key equipment items shown with associated

loads.6. The Engineering team will prepare an assessment report that covers the following:

• As-Built drawings including• Plans at each level calling up and dimensioning all structural components • Cross sectional drawings showing structural beams, slabs, floor to floor heights, roof build-ups and Basic design information of the

structure• Highlight any variation between As-built compared to the designed structure• Results of testing for strength and materials• Results of geotechnical assessment and testing/investigation• Details of loading, inputs and results of computer modelling• Commentary on adequacy/inadequacy of elements of the structure• Schedule of any required retrofitting required for safety or performance of Structure

Any proposals for Retrofitting to follow guidance developed in the Tripartite Document

Detail Engineering Assessment

19

Item No. Observation Recommended Action Plan Recommended Timeline

7Damage to concrete column

at 2nd floor levelBuilding Engineer to review damaged column and determine reason for cracking.

Immediate - Now

8Damage to concrete column

at 2nd floor levelColumn to be made good to original condition. 6-weeks

9Damage to concrete column

at 2nd floor levelTemporary support to be provided, if required by Building Engineer, to reduce loading on column.

6-weeks

10Damage to concrete column

at 2nd floor levelBuilding Engineer to inspect all building columns to ensure that there are no additional cracks.

6-months

11Design check on structure supporting roof top water

tanks

Extent of roof loading, including concrete water tank and water tank support structure, to be surveyed and capacity of roof slab and support system to be assessed to confirm that they are structurally adequate.

6-weeks

12Design check on structure supporting roof top water

tanks

Produce and actively manage a loading plan for all floor plates within the factory giving consideration to floor capacity and column capacity.

6-weeks

13Design check on structure supporting roof top water

tanksImplement loading plans on an on-going basis. 6-months

20

Item No. Observation Recommended Action Plan Recommended Timeline

14 Management of floor loadsProduce and actively manage a loading plan for all floor plates and the roof of the factory giving consideration to floor capacity and column capacity.

6-weeks

15 Management of floor loads Continue to implement load plan 6-months

16Structural adequacy of steel

roof support frame to the 5th floor

The steel roof to the 5th floor area – including connections-should be designed by the Building Engineer and, if required, upgraded to support code vertical and wind loads.

6-months

17

Missing drawings and discrepancies between

structural details provided and the as-constructed

building

Commence survey of as constructed building 6-weeks

18

Missing drawings and discrepancies between

structural details provided and the as-constructed

building

Building Engineer to complete survey of as constructed building. Drawings to be prepared showing the correct as constructed layout.

6-months

19

Missing drawings and discrepancies between

structural details provided and the as-constructed

building

Prepare controlled loading plans for all floors designating allowable storage density and where storage may be placed

6-months