007-ms for structural steel assembly warehouse, workshops.pdf

Pearl GTL Project

LINDE ENGINEERING

Shell Project No: HP-3000-QAT Contractor Project No : 5887

Project Document Number: T.4.250.902 Project Rev.: B Page 2 of 23

Purchase Order Number:

2MH127

Tag/Item Number(s): N/A

Unit(s): ASU

PCWBS: Z

QATAR SHELL GTL PROJECT (PEARL) C2 AIR SEPARATION UNITS CONSTRUCTION

F B 19.07.2008 Company Comments Incorporated AG MK AG CCI

E B 16.03.2008 Issued for Company Comments (Included fixing of anchor bolts) AG MK AG ICC

D A 24.04.2008 Ready For Construction AG EE ZG RFC

C O 06.03.2008 Issued for Company Comments AG EE ZG ICC

B 26.02.2008 Issued for Review AG EE ZG IFR

A 24.02.2008 Issued for Internal Review AG EE ZG IIR

GAMA Rev.

Project Rev Date Description Prepared

By Checked

By Approved

By Status

No. No. ORIGINATOR

LINDE ENGINEERING AG

Document Title:

METHOD STATEMENT FOR STRUCTURAL STEEL ASSEMBLY WAREHOUSE, WORKSHOPS

Contractor

Gama Qatar Co. W. L. L.

Document No. LOC470

GAM MTS MEC GTL 007 F

Org. Code

Doc. Type

Disc. Code

Geogr. Area

Seq. No

Rev. No Vendor Code

Project Document Number: T.4.250.902

Rev No: B

Doc. Title : METHOD STATEMENT FOR STRUCTURAL STEEL

ASSEMBLY WAREHOUSE, WORKSHOPS

Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 4 of 23

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TABLE OF CONTENTS

1 PURPOSE .......................................................................................................................................................................... 5

2 SCOPE ................................................................................................................................................................................ 5

3 REFERENCES .................................................................................................................................................................. 5

4 DEFINITIONS .................................................................................................................................................................... 6

5 EQUIPMENT & MATERIAL ............................................................................................................................................ 6

6 PERSONNEL ..................................................................................................................................................................... 6

7 MATERIALS ...................................................................................................................................................................... 6

8 RESPONSIBILITY ............................................................................................................................................................ 6

8.1 MECHANICAL WORKS MANAGER 6

8.2 STEEL STRUCTURE SUPERINTENDENT 7

9 METHOD OF EXECUTION ............................................................................................................................................. 7

9.1 PRE-COMMENCEMENT WORKS 7

9.1.1 WORK PERMIT 7

9.1.2 TRAFFIC MANAGEMENT PLAN 7

9.1.3 HANDLING, STORAGE AND PRESERVATION 7

9.1.4 EQUIPMENT AND PERSONNEL 7

10 PREASSEMBLY & ERECTION ..................................................................................................................................... 7

10.1.1 STEEL STRUCTURE ON FOUNDATION OR PEDESTAL 9

10.1.2 PRE-STABILIZATION 9

10.1.3 FINAL STABILIZATION & COMPLETING 10

10.1.4 PROCEDURE FOR USING EXPANSION ANCHOR BOLTS 10

10.1.5 PROCEDURE FOR USING ADHESIVE ANCHOR & FOIL CAPSULE 10

11 QUALITY ASSURANCE ............................................................................................................................................... 10

12 HSSE ................................................................................................................................................................................. 10

13 ATTACHMENTS ............................................................................................................................................................. 11

13.1 JOB SAFETY ANALYSIS 11



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 5 of 23

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1 PURPOSE

The purpose of this method statement is to outline the general requirements & precautionary measures which will be taken into consideration for the structural steel assembly & erection works and also to understand the expansion anchor bolts will be installed prior to the erection of steel substructures intended for the construction of storage of storage area of the warehouse at TSF areas.

2 SCOPE

This method statement identifies the general steps, arrangements & precautions for the Structural Steel Assembly, Erection works, fixing of expansion anchor bolts to be used for the mezzanine floor of the warehouse at TSF areas.

3 REFERENCES

T-4.234.067 : MS for Surveying T-4.219.583 : HSSE Meetings, Inspections and Walk through Plan T.4.231.527 : General Notes For Structural Steel T-4.129.868 : Work at Height - Scaffolding T-4.129.859 : Lifting Procedure General T-4.219.590 : Scaffolding Procedure T.4.250.938 : General Welding Procedure T.4.129.855 : Emergency Response T.4.129.859 : Lifting Operations T.4.129.854 : Risk Assessment T.4.129.850 : Accident/Incident/Near Miss Reporting and Investigation T.4.129.865 : Portable Power Tools T.4.129.866 : Use of Grinding Machines and Abrasive Wheels T.4.129.861 : Working with Electricity T.4.129.867 : Hand Tools T.4.129.853 : Personal Protective Equipment T.4.129.863 : Welding and Flame Cutting T.4.129.873 : Safety Induction And HSSE Training T-4.250.917 : ITP for Structural Steel T-4.250.907 : QCP for Structural Steel

ASTM A325M : Standard Specification for High Strength Bolts for Structural Steel Joints

ASTM A490 M : Standard Specification for High Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints

ASTM A307M : Standard Specification for Carbon Steel and Studs, 60,000 PSI Tensile Strength (Ordinary Strength Bolts)

ASTM A563M : Standard Specification for Carbon & Alloy Steel Nuts (Metric)ASTM F959M : Compressible-Washer-Type Direct Tension Indicators



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 6 of 23

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4 DEFINITIONS

Company : QSGTL or its PMCContractor : Linde Engineering AG Sub Contractor : Gama Qatar Co. W.L.L Contract : GTL Project QCP : Quality Control Procedures ITP : Inspection and Test Plan QA/QC : Quality Assurance / Quality Control RLIC : Ras Laffan Industrial City RAT : Risk Assessment Team TBT : Tool Box Talk JSA : Job Safety Analysis

5 EQUIPMENT & MATERIAL

• Mobile crane 60 Ton • Manlift, Man-basket • Trifore • Hubzug (come along) • Hand tools (wrenches, pliers, scissors) • Rigging gear (Slings, shackles, …) • Welding machine • Surveying equipment & instruments • Tower Light

• Safety Block • Safety Belt with double Lanyard • Safety Belt • Trailer • Magnetic Drills/Hand Drills • Chipping Hammer • Generator • Spreader Beam

6 PERSONNEL

• Site Engineer • Foreman • Survey Team • Steel Erector • Welder • Helper

• Banksmen • Rigger • Scaffolder • First Aid Worker • HSE personnel

7 MATERIALS

• Fabricated structural steel members • Fasteners & welding rods

8 RESPONSIBILITY

8.1 MECHANICAL WORKS MANAGER The Mechanical works Manager will provide inputs to the project execution plan to ensure that the erection, lifting strategies & philosophy are addressed.



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 7 of 23

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8.2 STEEL STRUCTURE SUPERINTENDENT

The Steel Structure Superintendent is responsible for the overall management of the project construction team to ensure that safe and effective operations are conducted and properly documented.

9 METHOD OF EXECUTION

9.1 PRE-COMMENCEMENT WORKS

9.1.1 WORK PERMIT The erection operation of a steel structure starts with a request for a permit to work. Only after issuance of the related permit will the execution of the work start.

9.1.2 TRAFFIC MANAGEMENT PLAN Works shall not interrupt any kind of vehicle traffic on any access road leading to any gates. In case of interruption a revised traffic management plan shall be provided. Care will be shown to minimize impact onto other works but not so much as to hinder SUBCONTRACTOR erection works. Coordination of subcontractor's works at site is under CONTRACTORS scope.

9.1.3 HANDLING, STORAGE AND PRESERVATION Handling, storage, preservation and protection will be carried out as per project specification. All small components like high strength bolts, nuts, washers, etc will be stored in a water tight and dry place. Upon receiving the materials from contractor the different structural members will be visually checked by GAMA QATAR for any visual defects or apparent damage. The threaded portion of anchor bolts will be kept clean and protected from damage.

9.1.4 EQUIPMENT AND PERSONNEL All equipment shall be inspected and approved according to T-4.129.873 and all personnel shall be inducted and trained before commencement of work.

10 PREASSEMBLY & ERECTION

The preassembly and erection will be done in basically the following steps: preassembly on the ground, erection with crane(s), stabilization of erected pieces, general cleanup. All erection works will be done with the latest approved IFC drawings. Before assembly of any structural steel element; position and level of anchor bolts will be checked. True level of a base plate will be obtained with the use of shimming plates. Surveyors will paint marks on the foundations denoting the axes and levels to be used. These target marks will be colored for visibility. Where possible, preassembly of the steel structure elements will be done close to the



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 8 of 23

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foundations to minimize handling needs preferably in a position where the crane used for the assembly can be used for the erection as is. Erection of the preassembled parts will be done with cranes. Adequate safe lifting capacity of the cranes is to be confirmed from the load charts of the cranes to be submitted for approval, before the start of the respective work. During the actual lifting activity, a maximum of 80% of the load chart value will be permitted. Heavier lifting work will require Subcontractor to submit and have approved a heavy lift plan to Contractor specifically for the said lifting activity. The Lifting/Rigging Superintendent will supervise lifting activities. The area where the crane is positioned must be suitable for the purpose. There should not be deep excavations close enough to the crane to destabilize it and the ground must be firm enough to prevent the crane from sinking. To spread the load and further stabilize the crane steel sheets or pads will be used if required. A soft barricade will be erected around the crane and signs posted to clearly define the work area. All safety requirements will be reviewed from the HSSE perspective and necessary measures will be implemented. All slings and shackles will have inspection verified and color coded before lifting works. If any damage is noticed they will be moved from worksite. Before erection works start, the concrete surfaces of the foundations shall be checked & roughened by chipping. After checked by GAMA QA/QC Management and handed over documentation, erection facilities shall begin.

Fig_1. Typical Crane in Execution



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 9 of 23

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During erection, temporary bracing and guys shall be used to maintain structural stability as necessary. Workers working at height (above 1.5 meter from ground) will be 100% tied off at all times connected to a stable/fix member. Safety belt used will have a double lanyard. Center of gravity of structural steel piece shall be calculated to prevent risks. But if the piece is symmetrical with regard to the center line, there is no need to calculate gravity center. Wherever possible all loads to be double wrapped. A general cleanup of the work area will be conducted to ensure that no unused materials are left on the erection site. All material retrieved will be sent to the warehouse for proper storage. Detailed installations are given below.

10.1.1 STEEL STRUCTURE ON FOUNDATION OR PEDESTAL For each block of drawings, assembly of the structural steel elements on the foundation or the pedestal will first start from the two columns that have diagonal elements in-between. The other structural elements will be assembled around the first assembly. A piece (two columns with girder(s) and diagonal(s) if any) will be pre-assembled on the ground above wooden supports, followed by the opposite piece. Preliminary tightening of all nuts and bolts used for the pre-assembly shall be carried out using appropriate hand tools as per ref. T-4.231.527 recommendations. Welding processes shall be carried out on the ground as much as possible. If the welding at height is unavoidable, necessary safety precautions will be taken for the execution. All of the welding will be done with qualified welders who will perform actual production welding in accordance with the appropriate welding procedures. Erection tolerances will be as per drawings supplied by Supplier. Four alternate methods will be used for the loosening of the slings and tightening of the bolts. These alternate methods are briefly described below:

1. Before lifting the piece that is on the ground, a ladder and scaffold will be assembled onto the piece for loosening slings and tightening bolts. Workers will climb ladder by using safety belt and safety block.

2. Second way for loosening slings and tightening bolts is using a manlift. 3. The 3rd alternative is using life lines between two structural steel columns, above

1.5 meter from top of girder. Workers will climb through ladder by either using safety belt & safety block or use manlift or safety set to reach proposed levels. After he reaches proposed level, he will sit on the girder to loosen the slings.

4. The 4th alternative is using Man-Basket (Construction cage) manlift + Boom Truck, etc.

10.1.2 PRE-STABILIZATION After the pre-assembly on the ground, one piece will be erected with a crane. Stability of the piece will be achieved via Grip hoist puller and/or crane. Each piece will be thoroughly assembled to the foundation or the pedestal’s anchorage with nuts before actual crane and/or Grip hoist puller release. This will be followed by the assembly of the two highest column to column girders via the use of manlift(s), life lines or ladder/scaffold.



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 10 of 23

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10.1.3 FINAL STABILIZATION & COMPLETING After the assembly of the two girders, the verticality and leveling of the four columns will be checked. If the columns are found to not be on level and vertical, corrective action will be performed. Assembly of the other parts of the steel structure will continue later with the use of manlift(s), life lines or ladder/scaffold. Tolerances in the leveling of the column bases and verticality of the columns will be set within the allowable limits. Final bolt tightening will be made only after checking the accuracy of the assembled frames.

10.1.4 PROCEDURE FOR USING EXPANSION ANCHOR BOLTS • Make out template for bolts holes for each column prior to drilling • Holes of 26 mm Ø x 100 mm will be drilled in the concrete slab. Expansion anchor bolts

to be used will be M 24, stainless steel or zinc coated. For M 20 bolts, 22 mm Ø will be drilled

• Clean-up the hole with air pressure & assume that no grit or dust are present on the pre-drilled holes

• Insert the expansion anchor bolts & slightly blow with a hammer to have an expansion • With a distance piece, screw in the nut till resistance is felt & undo the nuts • The columns are now ready to be fitted into the expansion anchor bolts • Shim plates will be provided to be able to correct the elevation of other structures

10.1.5 PROCEDURE FOR USING ADHESIVE ANCHOR & FOIL CAPSULE • Make out a template for bolt holes to be drilled • Holes of 26 mm Ø x 100 mm will be drilled on the concrete slab for M 24 anchor rods,

22 mm Ø will be drilled for M 20 anchor rods. Anchor rods are of stainless steel material • Clean-up the pre-drilled holes with air pressure until free of grit & dust • Insert the chemical capsule with the anchor rod drive in with rotary hammering action • Allow at least 30 minutes for curing time of the adhesive or use the table below:

Temp. Tgel Time 0 - 10° C 30’ 1 hr 10 - 20° C 20’ 30 min 20° > 8’ 20 min

• After curing time the column or sub structure can be fixed • Apply for bolt torque value

11 QUALITY ASSURANCE

A Quality Assurance System shall be operated conforming to related standards. Controls and checks shall be established and documented through relevant references: T-4.250.917 (ITP) & T-4.250.907 (QCP).

12 HSSE

All works shall be in compliance with the State of Qatar laws and regulations, Ras Laffan Industrial City and International standards, codes, GAMA and QSGTL requirements and instructions.



Date/Rev. No : 19.07.2008 (Rev. F)

T.4.250.902 REV-B Page 11 of 23

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In addition all employees and GAMA subcontractor employees on site will have gone through all the Site Safety Induction (Linde & Shell) and GAMA Qatar Safety induction for site safety, health, environmental and security prior to work activities. Other training courses will be attended as required by GAMA or QSGTL (Working at Height). At a minimum a Risk Assessment will have been prepared by the RAT ranking the hazards associated with project works and control measures to be taken to mitigate the hazards to an acceptable level. Each work scope or task will have a completed and approved JSA identifying the potential hazards and control measures that will be implemented to protect people and environment. The JSA will be used by Supervisor as the basis of conducting his daily TSTI meeting and his weekly TBT. In addition to the above, employees conducting survey works will wear required PPE and highly visible vest where traffic or other hazards may exist. For additional safety requirements for a particular or specific task please refer to the JSA prepared for that task.

13 ATTACHMENTS

13.1 JOB SAFETY ANALYSIS

JSA Number: T.4.250.902

Normal Approvals: Name Date

JSA by: Mr. Atilla Gun 17.07.08

Job Supervisor: Mr. Muslim Topaloglu 17.07.08

Name Date

Discipline Superindent(LINDE)

JOB SAFETY ANALYSIS FORM

Page No: 1 of 12

Job being analysed: MS - STRUCTURAL STEEL ASSEMBLY WAREHOUSE, WORKSHOPS

Additional Approvals (Determined by Job Supervisor in correlation with LINDE HSSE Manager).

Department/Section doing JSA: HSSE & Construction JSA Members: Mr. Syd Osborne, Mr. Atilla GunJob Performers: Mr. Atilla Gun, Mr. Muslims Topaloglu

General job requirements / Common Personnal Protective Equipment.

Signature

1. The following Personal Protective Equipment shall be worn while erecting structural steel at Live Area: Nomex coveralls, safety glasses, safety helmet, safety shoes, full body harness, gloves and High visibility vests. Signature

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NEW REVISED

1

HSSE Representative (LINDE)

2.Permit To Work.3.Intrinsically safe electrical equipment.

LINDE EMERGENCY TELEPHONE NO. HSSE MANAGER 583 40 72RLIC EMERGENCY NO 474 88 88

Note: 1) If any of the tasks involves biological, physical or chemical hazards, then The LINDE HSSE Dept. must also approve the work. 2) Use additional sheets as necessary. 3) Details on safety (PPE,Hazard etc) and environmental requirements can be found in LINDE and QSGTL HSSE Procedures.

Approval required for hazardous work detailed in the Linde work permit procedure.Changing conditions and emergency proceduresStop work. Switch off equipment.Suspend lifting in a safe way. Supervisor directs personnel to nearest and safest muster point considering wind direction. Supervisor counts all employees. Missing employees are reported to Linde HSSE Dept. When all clear is given check with Linde HSSE before returning to work.

OTHERS(List Below):

NEW REVISED

1

RISK CURRENT ADDITIONALRANK CONTROLS CONTROLS

1.1 1.1.1 Gas test shall be conducted prior to entry by GAMA authorized gas tester.

1.1.2 Provide a trained & competent employee who should pave the way to conduct Gas Test in the area of route for truck from entering the gate to site location.

1.2. Speeding. 1.2.1 Drivers shall be made aware of traffic rules and regulations. A 5 MED

1.2.2 Avoid heavy acceleration and braking.1.2.3 Strictly follow speed limit.

Drivers shall think ahead; drive defensively.

MED5A

Transporting of materials in the restricted area.

Possible fire & explosion.

1.2.1.1

LOW3B

1CONSEQUENCESACTIVITY

JOB SAFETY ANALYSIS / RISK ASSESSMENTT.4.250.902

SCOPE : STRUCTURAL STEEL ASSEMBLY WAREHOUSE, WORKSHOPS

Initial Risk Residual Risk

C PHAZARD / POTENTIALITEM C RP

C 3 MED

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1.3 Unqualified drivers.B 2 LOW

1.3.1 Current valid Qatar driving license for the class of vehicle he is driving.

1.4 Struck by Vehicle (personnel).

1.4.1 Vehicle fitted with reverse alarm, lights and main hazard light operational, daily check list shall be used.

1.4.2 All vehichle movement shall be guided by competent banksmen.

1.5 1.5.1 All Materials on the truck should be effectively secured during the transportation.

1.5.1.1

1.5.2 Operator and job Supervisor shall ensure that the vehicle is not overloaded.

1.6 Reversing and Unloading B 3 LOW 1.6.1 Audible reversing alarm shall be

installed on all equipment.1.6.1.1 Banksman to be provided during

Equipment Operation. A 3 LOW

LOWA 4

Material falling from trucks.

B 3

Ensure minimum overhang of materials outside the trailer bed.

ALOW 3 LOW

2

RISK CURRENT ADDITIONALRANK CONTROLS CONTROLSCONSEQUENCESACTIVITY





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2.1 2.1.1 Ensure all employees use proper PPE i.e. coveralls, helmet, safety glasses, gloves and safety shoes.

2.1.1.1

2.1.2 One piece of material at one time during unloading.

2.2 Physical injuries back, muscle strains, sprains from lifting /carrying

2.2.1 Ensure employee use proper lifting techniques i.e. lift with their legs not their back.

2.2.1.1

2.2.2 Use the "Buddy System" get help.2.2.3 Provisions for mechanical equipment

i.e. trolley, fork lift etc..2.3 2.3.1 Only certified riggers to do rigging

k2.3.1.1

Break the job down into manageable portions.

LOW

2 Ensure TSTI are executed & Implementation of safety advises monitored.LOW3B

Hand & Finger injuries-Bruising-Cuts while carrying / pulling materials.

3

Unloading of materials at site.

Improper rigging.

3A

A 3 LOW

Rigging work to be closely i d b th Lifti /Ri i

LOWB

works.2.3.2 Ensure all rigging gear are inspected,

color coded with Third party certified.2.4 Possible damage of

sling during unloading. B 2 LOW2.4.1 Provide softerner/padding on sharp

edges.2.5 2.5.1 Area shall be properly maintained all

equipment and materials must be properly stored and picked up.

2.5.1.1

2.5.1.22.5.2 Housekeeping shall be on going and

picked up at the end of the day.2.5.3 Material storage areas shall be

identified and properly barricaded. 2.6 Dropped loads.

C 4 MED

1.1.11.1.21.1.31.1.4

1.1.51.1.6

Third party crane inspections.Daily crane checks.Competent riggers.Inspection of rigging gear & equipment.SWL displayed.Test reports, rigging checks.

1.1.1.11.1.1.2

1.1.1.3

Discuss in TSTI.Barricade swing radius of crane and provide warning signs on the drop zone.Prevent anyone on the risk zone.

A 4 LOW

3

A

3Asupervised by the Lifting/Rigging supervisor.LOW

Remove any unecessary materials.Materials shall be properly store/stack piled.

C

Slip, trip, and fall hazards

3 3 LOW

B

MED

LOW

3






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2.7 Lifting / Crane operations / Rigging.

2.7.1 Ensure that crane operator is certified by Third party, valid certificates and driver's licenses.

2.7.1.1 Rigger shall be 100% visible to the crane operator & clearly relay the information to the crane operator.

2.7.2 Ensure that all lifting gear/lifting tackle is properly inspected and color coded.

2.7.1.2 Ensure all lifts will be controlled and supervised by a supervisor.

2.7.3 Daily crane inspections. 2.7.1.3 Ensure all lifting equipments are inspected / approved & color coded as per LINDE color code chart.

2.7.4 Automatic safe load indicator.2.7.5 Proper set up of crane ; i.e. out riggers

fully extended.

LOW4AMEDC 4

2.7.6 Tag lines are to be used to control 2.7.1.4 Ensure firm footing ground 2.7.7 Barricade the working area with tape

plus sign boards indicating crane lifting is in progress to prevent unauthorized

2.7.1.5 Check wind velocity.

2.7.8 Provision of banksman at the lifting area to keep personnel away from the lifting operation.

3.1 3.1.1 Area shall be properly maintained all equipment and materials must be properly stored and picked up.

3.1.1.1

3.1.2 Housekeeping shall be on going and picked up at the end of the day.

3.1.3 Material storage areas shall be identified and properly barricaded.

3.1.4 Materials shall be properly stack pile.3.2 3.2.1 Ensure correct cribbing of dunnage. 3.2.1.1

3.2.2 Ensure support can withstand maximun intended weight/load.

3.3 3.3.1 Ensure workers hand shall be away from the connecting pieces of materials.

3.3.1.1

3.3.2 Ensure employee has appropriate hand protection.

LOW3A

Keep the structural steel as low as possible to the ground.

Hand injury.

Fall of materials from dunnage or support. 3 ALOW

Preparation for pre-assembly at ground level.

3

B

2 LOW

MED

Discuss in TSTI.

C

Remove any unecessary materials.

C

Slip, trip and fall hazards.

3

A

3

LOW2

LOW

4






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4.1 4.1.1 Ensure that crane operator is certified by Third party, valid certificates and driver's licenses.

4.1.1.1 All equipment of slinging,hooks, pin, shackles shall be Third party certified.

4.1.2 Ensure that all lifting gear/lifting tackle is properly inspected and color coded.

4.1.1.2

4.1.3 Third party inspections.

4.1.4 Daily crane inspections. 4.1.1.34.1.5 Automatic safe load indicator.4.1.6 Proper set up of crane ; i.e. out riggers

fully extended.4.1.7 Tag lines are to be used to control

Rigger shall be 100% visible to the crane operator & clearly relay the information to the crane operator.

Ensure all lifts will be controlled and supervised by Rigging/Lifting supervisor.

Dropped load during assembly.

4 Assembly of two columns and structural members at ground level. Horizontal position.

C MED4 LOW4A

loads.4.1.8 Crane less than 10 years old.4.1.9 Barricade the working area with sign

boards indicating crane lifting is in progress to prevent unauthorized entry.

4.1.10 Permit to Work.4.2 4.2.1 Only qualified & certified riggers to do

rigging works.4.2.1.1 Rigging work to be supervised by

supervisor.4.2.2 Ensure all rigging gear are inspected,

color coded with Third party certified.4.3 Possible damage of

sling during lifting. B 2 LOW4.3.1 Provide softerner/padding on sharp

edges.4.4 4.4.1 Ensure proper communications

between two people working at both ends.

4.4.1.1 Ensure that proper PPE, working gloves is being used.

4.4.2 Ensure proper positioning of hand & fingers while doing the job.

4.4.1.2 Ensure bolt and nuts are hand tight before proceeding to the next tasks.

LOW3A

LOW3B

B

Improper rigging.

LOW3

Pinch point while connecting steel members to connecting plates. LOW3A

5






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4.5 4.5.1 Ensure proper stack piling of materials. 4.5.1.1 Removed unnecessary materials.4.5.2 Ensure wooden support/dunnage are

not scattered in the work area.4.5.1.2

4.5.3 Bolts/nuts should be placed in the bag/container.

4.6 4.6.1 Ensure employee use proper lifting techniques i.e. lift with their legs not their back.

4.6.1.1


i.e. trolley, fork lift etc..5.1 5.1.1 Ensure materials conforms to LINDE

specifications and procedures5 Substandard materials.


Housekeeping shall be on going and picked up at the end of the day.

Installation of temporary access

33 LOW

AC

Slip, trip and fall

Back injury due to manual handling.

B A

LOW3

LOW

MED3

specifications and procedures.5.1.2 Ensure ladder are inspected and color

coded.5.2 5.2.1 Ensure pipe connecting to the beam are

fixed with two beam clamp.5.2.1.1

5.2.2 Ensure pipe supporting the ladder will not obstruct user in between rungs.

6.1 6.1.1 Discuss in TSTI.6.1.2 Ensure employee has appropriate hand

protection.6.2 6.2.1 Ensure employee use proper lifting

techniques i.e. lift with their legs not their back.

6.2.1.1


i.e. trolley, fork lift etc..

6 Installation of temporary support for frame stability.

LOW

MED

Fall of ladder when column was erected.

temporary access ladder beside column.

LOW

LOWA

Back injury due to manual handling.

3B


LOW

Hand injury.B

B

2

4

2

LOW

B

3

Ensure ladder are fixed properly using ladder clamp.

4A

6






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7.1.1.1

7.1.2 Ensure that all lifting gear/lifting tackle is properly inspected and color coded as per LINDE color code chart.

7.1.1.2

7.1.3 Third party crane inspections. 7.1.1.37.1.4 Competent Riggers.7.1.5 Daily crane inspections.7.1.6 Tag lines are to be used to control

loads.7.1.7 Barricade the working area with sign

boards indicating crane lifting is in

7 Lifting of assembled structural frame.

C LOW

All equipment of slinging,hooks, pin, shackles shall be Third party certified.Rigger shall be 100% visible & clearly relay the information to the crane operator.Ensure all lifts will be controlled and supervised by a Rigging/Lifting supervisor.

AMED4 4

Dropped loads.

boards indicating crane lifting is in progress to prevent unauthorized entry.

7.1.8 Ensure that no materials are on the assembled materials.

7.1.9 Ensure pre lift check to be conducted prior to lift.

7.2 7.2.1 Only work on level solid ground use out riggers with adequate support pads.

7.2.1.1

7.2.2 Ensure all lifts will be controlled and supervised by supervisor.

7.2.3 Safe Working Load displayed.7.3 7.3.1 Load chart should be available in the

cab at all times.7.3.1.1

7.3.2 Display of SWL, radius of working indication.

7.3.3 Ensure to have automatic safe load indicator.

7.3.4 Use of out riggers and/or couterweights.7.4 7.4.1 Ensure to have a valid certificates for

drivers/operators.7.4.1.1

7.4.2 Competence checks for drivers/operators.

LOW

B

Overturning machines

Unqualified crane drivers/operators.

B MED

MED

4 LOW

Excessive load exceeding capacity of cranes.

A

4

B 3

4

Only drivers/operator with Qatar license & certified operator & trained personnel are allowed to work on site.

Provision of lifting plan if there are critical lifts.

Ensure the machine shall be travelled to the most suitable position for the job to be carried out before any slewing takes place.

A 4 LOW

3 LOWA

7






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7.5 7.5.1 Use only cranes less than 10 years old. 7.5.1.17.5.2 Ensure to have Third Party Inspection.7.5.3 Ensure to have a valid certificates

checks.7.6 7.6.1 Competence checks registered riggers

clearly identified.7.6.1.1

7.6.2 Ensure to have a list of competent persons maintained.

7.6.1.2

7.6.3 Contractor supervisor to constantly monitor rigger performance.

7.7 7.7.1 Ensure to know the weight of load. 7.7.1.17.7.2 Ensure all lifting equipment shall be

MED

B

C

4

4

Crane shall be inspected and approved by third party and LINDE prior to use on respective site.

LOW

LOW

Ensure qualified/certified rigger oversees all lifting operations.Rigger shall be 100% visible to the crane operator & clearly relay the information to the crane operator.

MED

Ensure all lifting gear brought into the site shall be clearly identified by

4

Sub-standard cranes

Improper rigging method

A

4A

Underrated slings/hooks/shackles. g q p

inspected and approved by third party and prior to use on site.

7.7.3 Safe Work Load should be display.7.8 7.8.1 Keep away personnel from lifting

/moving area.7.8.1.1 Ensure that nobody on the way of

the crane.7.8.2 Rigger and crane operator must be

certified by third party as being competent.

7.8.1.2

7.8.3 Tag lines shall be attached to control the loads.

7.8.4 Personnel shall not work directly below suspended load.

7.9 7.9.1 Ensure to have inspection of all equipment prior to use on site.

7.9.1.1

7.9.2 Inspection shall be carried out by a competent person who has detailed knowledge of the type of machine he is to examine.

LOW

High visibility warning signs and barricade shall be installed.Assign banksman to control passerby.

LOW

LOW

Ensure after inspection to generate report specifying any repairs, renewals which he considers are necessary if the equipment is to continue to be used with safety.

means of a name plate, supplied by a manufacturer,as to SWL & serial no.

A

4

4B

People/material struck by swinging loads/crane in motion.

MED

4

4

4

A

A

C

Equipment failure due to mechanical problem.

B

MED

4

MED

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7.10 7.10.1 Ensure permanent bracings are installed and bolt tightened.

7.10.1.1

7.10.2 Ensure center of gravity of the frame being lifted.

8.1 8.1.1 Ensure that all hand tools are in good condition.

8.1.1.1

8.1.2 Ensure qualified/ competent employee to carry out the task.

8.2 8.2.1 Ensure employee use proper lifting techniques i.e. lift with their legs not their back.

8.2.1.1

8.2.2 Use the "Buddy System" get help.8 2 3 B k th j b d i t bl

LOW3

LOW

LOW

Discuss in TSTI.

Ensure two tag lines are controlling the load.

A

Discuss in TSTI.

A

A

Muscle strain or sprain while positioning of frames into anchor bolts.

Setting up of lifted frames at anchor bolts.

8

Severe twisting of assembled frame possible collapse. 4B

3B LOW

MED

3

4

LOWB 3

Pinch point injuries tightening of nuts to the anchor bolts.

8.2.3 Break the job down into manageable portions.

8.3 8.3.1 Only authorized & skilled worker for the task.

8.3.1.1

8.3.2 Ensure workers not to hold base plate.9.1 9.1.1 Ensure that all hand tools are in good

condition.9.1.2 Ensure qualified/ competent employee

to carry out the task.9.1.3 Ensure not to use cheater bar.


10.1.1.1



10.2 10.2.1 Ensure employee has appropriate hand protection.

10.2.2 Discuss in TSTI.10.3 10.3.1 Warn employees of pinch or crush

points.10.3.1.1

10.3.2 Two tag lines shall be attached to control the loads.

MED

Discuss in daily TSTI.

Personnel injury from poor body position. LOW

Hand injury.B 2 LOW

LOW

Discuss in daily TSTI.

A3


C 3

9 Bolts tightening.

Caught in between column base plate & foundation.

3B

Pinch point .

LOW

C LOW2

LOW3

3

LOW3

A

A

Remove any unecessary materials.Hook-up of two temporary support stability concrete blocks.

10

B

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11.1 11.1.1 Ensure that equipment operator is certified by Third party, valid

11.1.1.1

11.1.2 Inspection sticker for the manlift.11.2 Hand injury from

removing of sling. B 2 LOW 11.2.1 Ensure employee has appropriate hand protection.

11.3 Fall of personnel.

B 4 MED

11.3.1 All employees shall wear inspected full body harness fitted with twin lanyards with shock absorbers, each lanyard shall be fitted with dual action self-locking safety hook for 100% Tie-off.

11.3.1.1 Discuss working at height in extra TSTI.

A 4 LOW

11.4 11.4.1 Ensure one lanyard is connected to the rope grab or inertia type reel.

11.4.1.1

11 4 2 Ensure 3 points contact when using the

All vehichle movement shall be guided by competent banksmen.

3

Fall of personnel while ascending/descending vertical ladder

LOW3A3

3 LOWA

Ensure that there are no obstruction in between rungs of a ladder

LOW

LOWB

11 Removal of sling using Manlift (Option 1).

Removal of sling using temporary ladder (90 deg

BImproper use of Manlift.

11.4.2 Ensure 3 points contact when using the ladder.

11.5 11.5.1 Ensure spare lanyard is connected on the lifeline before removing the other lanyard which is connected to the rope grab/inertia type reel.

11.5.1.1

11.5.2 Ensure firm footing on the beams/girders before any attempt to transfer.


12.1.1.1

12.1.2 Ensure that all lifting gear/lifting tackle is properly inspected and color coded as per LINDE color code chart.

12.1.1.2

12.1.3 All equipment of slinging,hooks, pin, shackles shall be Third party certified.

12.1.4 Third party crane inspections.12.1.5 Competent Riggers.12.1.6 Daily crane inspections.

MED4C

LOW

vertical ladder.

LOW4A

Rigger shall be 100% visible & clearly relay the information to the crane operator..Ensure all lifts will be controlled and supervised by a supervisor.

Dropped loads.

3 LOW3

Ensure to avoid haste.

A

ladder.

Installation of girders between column and other structural elements.

12

ladder (90 deg. Vertical with rope grab). Fall of personnel while

transferring from ladder to beam (vice versa).

B

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12.1.7 Tag lines are to be used to control loads.

12.1.8 Barricade the working area with tape & sign boards indicating crane lifting is in progress to prevent unauthorized entry.

12.2 12.2.1 Competence checks registered riggers clearly identified.

12.2.1.1

12.2.2 Ensure to have a list of competent persons maintained.

12.2.1.2

12.2.3 Contractor rigging supervisor to constantly monitor rigger performance.

12 3 1 E t k th i ht f l d 12 3 1 1

4

LOW4A

Ensure qualified/certified rigger oversees all lifting operations.Rigger shall be 100% visible to the crane operator & clearly relay the information to the crane operator.

U d t d

4

E ll lifti b ht i t

C

Improper rigging method

C MED

MED

12.3 12.3.1 Ensure to know the weight of load. 12.3.1.112.3.2 Ensure all lifting equipment shall be

inspected and approved by third party, prior to use on site.

12.3.3 Safe Work Load should be display.12.4 12.4.1 Keep away personnel from lifting

/moving area.12.4.1.1 Ensure that nobody on the way of

the crane.12.4.2 Rigger and crane operator must be

certified by third party as being competent.

12.4.1.2

12.4.3 Tag lines shall be attached to control the loads.

12.4.4 Personnel shall not work directly below elevated works.

12.5 12.5.1 Ensure bolts/nuts are contained in bolts bags.

12.5.1.1

12.5.2 Tools shall be tied with retaining rope attached to the body harness.

12.6 12.6.1 Ensure lifeline has a design calculation/Engineering design.

12.6.1.1

12.6.2 Ensure lifeline can withstand load impact as per LINDE procedure.

LOW4A

LOW3B

Lifeline failure.

Tools/materials fall hazard.

4C

4B

Underrated slings/hooks/shackles.

LOW4A

3A

MED

LOW

Barricade and secure the working area with signboard.

Lifeline should be inspected by scaffolding supervisor prior to its use.

Ensure all lifting gear brought into the site shall be clearly identified by means of a name plate, supplied by a manufacturer,as to SWL & serial no.

MED

People/material struck by swinging loads/crane in motion.

B

High visibility warning signs and barricade shall be installed.

LOW4 MED A 4

11






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13.1 Possible fall down of frame. B 4 MED

13.1.1 Tie-back or Provision of strong back support to prevent frame from any deflection and fall.

13.1.1.1 Work will be supervised at all times as per Work Method Statement. A 4 LOW


13.2.1.1



14.1 14.1.1 Insulate yourself from work and ground. 14.1.2 Ensure tools/equipment are of correct


14.1.1.1

13

14 Final bolt tightening using electric torque

Ensure all electrical equipment were properly grounded and built

Alignment of structural columns.

LOWC 3 A 3MED

Electric shock.


type, size and they are in good condition and inspected.

14.1.3 Ensure good electrical connection.14.1.4 Don’t allow any live electrical parts to

touch the ground. 14.2 14.2.1 Ensure employee wearing suitable

gloves when using mechanical torque wrench.

14.2.2 Only qualified & trained employee will carry out the task.

14.3 Fall of personnel.

B 3 LOW

14.3.1 All employees shall wear inspected full body harness fitted with twin lanyards with shock absorbers, each lanyard shall be fitted with dual action self-locking safety hook for 100% Tie-off.

14.3.1.1 Discuss working at height in TSTI.

A 3 LOW

14.4 14.4.1 Housekeeping shall be a priority, walk and work areas shall be kept free of materials.

14.3.1.2


14.1.1.2

Final bolt tightening using mechanical torque wrench.

wrench.

LOW1

with ELCB at their source.Don’t touch electrically live parts with skin or wet clothing.

C

Hand & Finger injuries.

LOW

Keep cables, materials, tools neatly organised. MED3C

Slip, Trip & Fall from same level due to cluttered area. LOW3A

AB 4 MED 4

12

007-ms for structural steel assembly warehouse, workshops.pdf

Documents

review ag ee zg ifr

qat contractor project

revb page

project rev date description

construction ag ee zg

method statement

method of execution

code geogr