2015-07-05 TUV SSA-313 Connect Fashions Ltd V01

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Structural Safety Assessment Report

Connect Fashions Ltd.Ka-11/5, Jagannathpur, Progati Sarani,Bashundhara, Baridhara, Dhaka

Latitude 23.811698° NLongitude 90.421398° E

Date of Assessment: 5th July, 2015

Date of Report: 6th July, 2015

Report Code: SSA-313

Report Version: V01

Author: Iftekhar Haider

Reviewer: Mr. Nilesh Pathak

BLACK AMBER DEA


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Report No.: TUV-SUD/2015/P1/SSA-313 TÜV ®

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Structural Safety Assessment Report: Connect Fashions Ltd.

Executive Summary

Connect Fashions Ltd. was surveyed for structural safety on 5th July, 2015 by TÜV SÜD

Bangladesh (Pvt.) Ltd. The purpose of this survey was to identify significant structural safetyissues and to provide recommendations for remediation based on guidelines for Assessmentof Structural Integrity for existing RMG factory buildings in Bangladesh.

The assessed factory building is a 6-Storey RCC building. The building was constructed in asingle phase, construction starting in 2002. Connect Fashions Ltd. operates partially on the2nd floor (Approx. 50% of the floor area) and completely on the 3rd, 4th and 5th floors of thebuilding. The partially occupied 2nd floor houses the finishing section, the 3 rd and 4th floorshouse the sewing floors and the 5th floor houses the Bonded warehouse and accessories go-down. The 2nd floor and the remaining floor area of the 1st floor are occupied by a privateBank (Mutual Trust Bank Ltd.) where the ground floor is occupied by the parking area andthe generator room. The roof floor was found to contain telecommunication transmissionstructures (BTS room and transmission tower). The factory operates on the occupied floorsof the building on a rental basis. The structural safety assessment was carried out on thetotal factory building.

The building has approval for a Basement+ 6-Storey commercial cum residential building on29th July, 2001 from RAJUK, Dhaka.

Complete sets of structural and architectural drawings were available at the factory on theday of assessment but found to mismatch with the as built construction. Soil test was found

at the factory on the day of assessment. According to the soil test report, soil investigationhas been conducted for foundation of a 6-Storey building. In the foundation recommendationsection of the report, construction of shallow foundation has been proposed at 7’-6” depthbelow EGL. According to the structural drawings, shallow foundation system has beendesigned at 10’-0” depth below EGL.

Note: 1 Ton = 2000 lb (As per soil test report).

Specific columns have been found highly stressed at the bottom tier level of the building,which may pose risk to operations in the factory. Based on this non-conformity, the buildingis rated AMBER. Detailed Engineering Assessment (DEA) is recommended. Immediate,

Mid-term and long-term corrective actions are recommended for this non-conformity. Othernon-conformities have been found for which long-term corrective actions are recommended.On the day of assessment, the 1st floor and a partial floor area of the 2nd floor could not beaccessed due to restrictions from the occupying organization (Mutual Trust Bank Ltd.). Dueto this reason, the report is marked BLACK.

Some other minor non - conformities were found at the factory regarding laggings inmaintenance, summarised as follows: hair cracks on random locations of walls and dampingon random wall locations.


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Table of Contents

EXECUTIVE SUMMARY ........................................................................................................................ 1

TABLE OF CONTENTS ......................................................................................................................... 2

GENERAL INFORMATION .................................................................................................................... 3

Location and Co-ordinates ................................................................................................................... 3

Exterior View of Factory Building ....................................................................................................... 4

Factory Information .............................................................................................................................. 5

Work activities and loading conditions on all floors ......................................................................... 5

DESCRIPTION OF STRUCTURAL SYSTEMS...................................................................................... 6

Review of structural drawings ............................................................................................................. 6

Structural Measurements ..................................................................................................................... 8

DETAILED OBSERVATIONS OF NON-CONFORMITIES .................................................................... 9

SUMMARY OF RECOMMENDATIONS ............................................................................................... 11

DETAILED ENGINEERING ASSESSMENT ........................................................................................ 12

DIFE SUMMARY .................................................................................................................................. 13

Basic Information ................................................................................................................................ 13

Recommendations for corrective actions ........................................................................................ 13

DISCLAIMER ........................................................................................................................................ 15


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General Information

Factory Name & Address

Connect Fashions Ltd.

Ka-11/5, Jagannathpur, Progati Sarani,Bashundhara, Baridhara, Dhaka.

Factory B Code 3606

Date of Inspection 5th July, 2015

Name of Managing Director of TheFactory

Michelle Quiah.

Name of Contact Person of TheFactory

Mr. Abdur Razzak

Phone No. of Primary Contact+880-1711-679066

Email Address of Primary Contact [email protected]

Location and Co-ordinates

Co-ordinates Latitude 23.811698° N Longitude 90.421398° E

Factory Building

mailto:[email protected]:[email protected]:[email protected]


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Exterior View of Factory Building

Ground Floor

1st Floor

2n Floor

3rd Floor

Roof Floor

Factory ID

4th Floor

5th Floor


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Factory Information

Work activities and loading conditions on all floors

Floor Operations

Observed live loading (psf)

Approximate

Roof Floor 3-Nos. 1000L water tanks, 10.0m(Approx.) Telecommunication tower withBTS, overhead reservoir on staircase roof(Approx. capacity: 18600L), open to sky

295.0

(On Panel of Slab)

5th Floor Storage section 35.0

4th Floor Sewing section 30.0

3rd Floor Sewing section 30.0

2nd Floor Connect Fashions Ltd.: Finishingsection (Approx. 50% of floor area)

Bank (Mutual Trust Bank Ltd.): BankingSection (Approx. 50% of floor area)

30.0

1st Floor Bank (Mutual Trust Bank Ltd.): BankingSection

30.0

Ground Floor Parking area, generator room >50.0

Total Number of Floors Ground Floor + 5-Storey, No Basement

Which part of the building isoccupied by the factory?

Partial area of 2nd floor, 3rd – 5th floors.

Name of other factories in thebuilding (if available)

None

Year of construction

(State if building was built in phases)

Floor ID Phase Year of Construction

Total Building 1Construction started

in January, 2002.

Describe any vertical or horizontalextensions and when they were built None

Does the building have cantilevers?How long are they and where arethey located?

Cantilevers present at all elevations of the building.The cantilever spans are: North Span - 3’-6” (Partial),South Span – 5’-0”, West Span – 5’-6”, East Span – 5’-9” (partial) and 6’-9” (partial).


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Description of Structural Systems

The factory building is a 6-Storey RCC building with 2-way beam column framing at all the

floor levels. The rooftop of the building contains a 10.0m tower on a tower frame structurewith an adjacent BTS room. There are also 3 nos. 1000L temporary tanks and 1 no.reservoir on the staircase roof with capacity approx. 18,600L. The generator room is locatedat the ground floor of the building. A number of inconsistencies have been found betweenthe as-built construction and the structural design documentation: The constructed slab hascantilevers at all elevations of the building which is absent in the structural design; the as-built column grid mismatches with the designed column layout plan, and the constructedrebar layouts in the columns mismatch with the designed column schedule, which has beenfound from rebar scanning. Columns were checked for stress and specific central, edge andcorner columns at the bottom tier of the building were found highly stressed.

Review of structural drawings

Factory roof layout Plan

BTS Room10m Towerstructure

2m Pole

2 nos. 1000Ltanks

1 no. 1000Ltank

18,600L reservoir


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Column Layout Plan

Columns calculatedfor FoS

Floor Area at 2nd flooroccupied by Connectfashions Ltd.

16’-0”

Rebar no. in column schedule = 12 nos.As Built Rebar nos. = 8 nos.

Rebar no. in column schedule = 12 nos.As Built Rebar nos. = 6 nos.


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Structural Measurements

Floor to ceiling heights (typicaland ground floor if different)

Floor Height

Ground 9.70 ft

Typical 10.00 ft

Floor finishes depth 1.5 inch

Slab thickness 5.0 inch

Typical down stand beamdimensions

12” X 10”

No. of Structural grid 8 X 5

State which column(s) werechecked for stress and why

Central Column at grid B5 was checked due to largetributary area.

Edge Column at grid A5 was checked due to cantileverspan along edge.

Edge Column at grid D3 was checked due to cantileverspan along edge.

Corner Column at grid A2 was checked due to cantileverspans along edges and large bending effect.

Column type Central Edge Edge Corner

Column grid B5 A5 D3 A2

Tributary dimension18.75’ X17.40’

18.75’ X13.40’

13.88’ X17.75’

17.25’ X13.40’

Column size (excludingplaster)

15” X 15” 15” X 15” 15” X 15” 15” X 15”

Aggregate type

Brick Aggregatewas visibleopeningplaster bychipping.




Reinforcement (state how thiswas identified)

8 nos. rebarobservedthrough Ferroscanning. Bar

sizeconsidered20mm as perstructuraldrawing.






sizeobserved 20mm as perstructuraldrawing.

Results of column stress check

Stress incolumn wasfound veryhigh(AMBER).





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Detailed Observations of Non-conformities

OBSERVATION 1 : Highly stressed columns

Description Specific central, edge and corner columns were found highly stressed.High stress in columns is due to deviated column construction fromdesigned column sections (designed sections contain 12 nos. re-bars,while as-built columns contain 6-8 nos. re-bars), use of low strengthaggregates (Brick chips) and overloading from cantilever spans. Thisproblem can become more severe if not addressed adequately.

Location Bottom tier columns at grids A2, A5, B5 and D3.

Highly stressed Columns (Color Coded)


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OBSERVATION 2 : Cracks on wall

Description Cracks observed on ground floor wall and cantilever walls. Crack onground floor walls might occur due to unequal settlement, while the

reason of cracks on cantilever walls might be due to deflection ofcantilever slabs. This problem may deteriorate if not addressedadequately.

Location Ground Floor wall, walls on cantilever slab at assessed floor levels.

Crack (1) pattern on cantilever walls on3rd floor wall

Crack (1) enlarged

Crack (2) pattern on cantilever walls on4th floor wall

Crack (2) enlarged

Crack on ground floor


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Summary of Recommendations

Item

No.Observation Recommended Action Plan

Recommended

Timeline

1.1 Highly Stressed Column

Factory Management to remove any storageloading from column supporting floors of theBuilding and maintain maximum live load notgreater than 25.0 psf on the working floors.

Immediately

1.2 Highly Stressed ColumnFactory Engineer to review design, loads andcolumns stresses of the total building.

Immediately

1.3 Highly Stressed ColumnVerify in-situ concrete stresses by 100mm dia.cores for A2, A5, B5 and D3 columns of theBuilding.

Immediately

1.4 Highly Stressed Column A Detail Engineering Assessment of Factory tobe commenced, see attached Scope.

Immediately

1.5 Highly Stressed Column

Produce and actively manage a loading planfor all floor plates of the Building, givingconsideration to floor capacity and columncapacity.

6 weeks

1.6 Highly Stressed ColumnDetail Engineering Assessment to becompleted.

6 weeks

1.7 Highly Stressed Column Continue to implement load plan for Building. 6 months

2.1 Cracks on wall

Sections of plaster finish to be removed toinvestigate if cracks penetrate the wall andcarry out any remedial actions as directed bythe Building Engineer for cracks on walls.

6 months


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Detailed Engineering Assessment

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 itis deemed necessary that a detailed engineering assessment be carried out by a competentEngineering Team employed by the factory Owner.

This Request should be read in conjunction with the BUET developed Tripartite Guidelinedocument for Assessment of Structural Integrity of Existing RMG Factory Buildings inBangladesh (Tripartite Document), the latest version of this document should be referenced.This 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 Elevation drawings .2. The Engineering team is to carry out supporting calculations with a model based designcheck to assess the safety and serviceability of the building against loading as set out inBNBC-2006, Lower rate provisions can be applied in accordance with the TripartiteGuidelines following international engineering practice, and justification for these lower rateprovisions must be made.3. A geotechnical Report describing ground conditions and commenting on foundationsystems used/proposed.4. A report on Engineering tests carried out to justify material strengths and reinforcementcontent in all key elements studied.5. Detailed load plans shall be prepared for each level showing current and potential futureloading 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 modeling• 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. DEAmust be approved by the DIFE Task Force prior to commencement of any retrofitting work.


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DIFE Summary

Name of the Factory : Connect Fashions Ltd.

Address of the Factory : Ka-11/5, Jagannathpur, Progati Sarani,Bashundhara, Baridhara, Dhaka

Present Status of the Factory : Operational

Structural Assessment Conducted by : TÜV SÜD Bangladesh (Pvt.) Ltd.

Date of Structural Inspection : 5th July, 2015

Basic Information

I. Building Usage type : Garment factory

II. Structural System : Beam – Column Frame

III. Floor system : Beam Slab

IV. Floor area : Plinth area of building = 4,500 sft.

Total working area of building = 15,750 sft

V. No. of Storey : Ground floor + 5-Storey

VI. Construction year : 2002

VII. Foundation type : Spread Foundation (As per as-built drawing)

VIII. Design Drawings : Available (29th of July, 2001 from RAJUK,

Dhaka)IX. Soil investigation report : Available.

X. Construction materials : Brick Aggregated.

XI. Generator : Ground floor of building.

Recommendations for corrective actions

Specific columns of the building were found in highly stressed condition due to inadequatecolumn sections which may pose risk to operations in the factory. Immediate, mid-term andlong term corrective actions are recommended for this non-conformity. Other non-conformities have been found in the building for which immediate, mid-term and long termcorrective actions are recommended.

Immediate (now):

1. Factory Management to remove any storage loading from column supporting floors ofthe Building and maintain maximum live load not greater than 25.0 psf on the workingfloors.

2. Factory Engineer to review design, loads and columns stresses of the total building.3. Verify in-situ concrete stresses by 100mm dia. cores for A2, A5, B5 and D3 columns

of the Building.4. A Detail Engineering Assessment of Factory to be commenced, see attached Scope.

Short-Term (6 weeks):


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1. Produce and actively manage a loading plan for all floor plates of the Building,giving consideration to floor capacity and column capacity.

2. Detail Engineering Assessment to be completed.

Long Term (Within 6 Months):

1. Sections of plaster finish to be removed to investigate if cracks penetrate the walland carry out any remedial actions as directed by the Building Engineer for crackson walls.


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Disclaimer

This report is intended to serve the Company in helping to understand the current safety

conditions under the prevailing system and proposed changes that will help improve thesafety and reliability of the systems installed at the Company’s facility. At the time of theaudit/ survey, all the systems were working as intended, as produced by the Company to theauditors. The above result reflects TÜV SÜD’s findings at the time and place of inspection.

This report does not release the Company or any other entity dealing with it from theircontractual responsibilities nor does it prejudice any one’s right of claim for compensation forany apparent and/ or hidden defects not detected during inspection or occurring anytimethereafter. This report indicates the measures advised to be installed at the facility toimprove safety performance, provided that the compliance to the national standards and alllegal and statutory requirements are adhered to by the Company. TÜV SÜD doesn’t hold the

accountability or responsibility, directly or indirectly of any mishap/disaster happening in thefacility audited as it doesn’t have any control over the Company’s process and practices.This report is made solely to the management of the Company for which this report isproduced, as a body, in accordance with agreed scope of work and for no other purpose.TÜV SÜD does not assume any responsibility to any other person or body for the content ofthis report.

TÜV SÜD makes no representation or warrantee, either expresses or implied, with respectto this audit/ survey report, its quality, accuracy, or fitness for any specific application.Therefore TÜV SÜD shall have no liability to the company for which this report is produced,

or any other person or entity with respect to any loss, liability or damage caused or allegedto have been caused directly or indirectly by the report. This includes, but not limited to,interruption of services, operations, losses of anticipatory profits or consequential damagesfrom use of this report.

In so far as audit reports are prepared in the course of processing the order and which aresubject to the protection of copyright, TÜV SÜD shall grant the Company a simple, non-transferable right to use the audit report, , insofar as this is necessary and in accordancewith the contractually presupposed purpose. Other rights shall not be transferred; inparticular, the Company shall not be entitled to modify (edit) audit/ survey reports or to makeuse of such reports outside of its business premises.

TÜV SÜD, its staff and any experts that may be called in shall not disclose and use tradeand business matters of the Company about which they have gained knowledge of duringthe performance of their work, without proper authorization.

2015-07-05 TUV SSA-313 Connect Fashions Ltd V01

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