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INTER REFINERIES PIPELINESII (IRP-II)PROJECT

MUSSAFAH TERMINAL PACKAGEAGREEMENT No. 09-55 95-E1

METHOD OF STATEMENT FOR TEMPORARYWORKSHOP

PROJECT No. 5595-E1 Doc. No. AL - 11 Rev.A

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METHOD STATEMENT

FOR

WORKSHOP

PROJECT NAME : Inter Refineries Pipelines-II (IRP-II)Project

Mussafah Terminal Package

COMPANY : Abu Dhabi Oil Refining Company (TAKREER)

PMC : Tebodin Middle East Ltd.

CONTRACTOR : GS Engineering & Construction

SUB CONTRACTOR : Al Hasoun Arabian Group


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NOTES:

(a) Revisions are denoted by a vertical line placed in the right-hand margin against the revised text.(b) PREP = Prepared by, CHKD = Checked by, REVD = Reviewed by, APPD = Approved by.(c) In case of conflict between any requirements stipulated in this document with the contractual

requirements, the contractual requirements shall prevail.

Proprietary Information: This document contains proprietary information and

may not be partly or wholly reproduced without prior written permission from

TAKREER and/or GS Engineering & Construction

DOC. CLASS

DIST. CODE

AIssued for Review and

ApprovalMr. Subrata Mr. Subrata AHAG

REV DATE REASONFOR ISSUE PREP APPD COMPANY

SIGNED (Initials)


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REVISION INDEX DETAILS

Rev Location of Change Brief Description of Change

A - First Issue

1. PURPOSEThe purpose of this method statement is to provide clear description and step by step procedure in carrying out

the work. Ensure that the quality requirements for WORKSHOP will be followed. Detail specific HSE requirements

that have to be considered for carrying out the works.

2. SCOPEThe following lists are the scope of work for the construction of WORKSHOP.

3. DEFINITIONS AND ABBREVIATIONSCOMPANY - Abu Dhabi Oil Refining Company (TAKREER)

CONTRACTOR

PROJECT

-

-

GS Engineering and Construction.

Inter Refineries Pipelines-II(IRP-II) Project, Mussafah Terminal Package

RA - Risk Assessment

HSEPTW -- Health, Safety and EnvironmentPermit to Work

4. REFERENCESCOMPANYs Documents

Exhibit B.9 Quality Management, Quality Assurance & Project Quality Plan

Exhibit B.28 HSE Management System

Exhibit B.29 HSE Requirements

Exhibit B.30 Environmental Protection & Occupational Health Policy & Objectives


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5. ROLES AND RESPONSIBILITIESIn respect of the works to be executed under this work method statement, the following roles and specific

responsibilities are defined:

5.1. Civil Construction ManagerThe Civil Construction Manager will be responsible for the preparation, execution and control of operation of the

work in accordance with the design specifications and this Method Statement.

5.2. Area ManagerThe Area Manager will be responsible for the preparation and compliance of the work procedure, document and

drawing control, material specifications, relevant QA/QC requirements, coordination with QA/QC regarding

inspection and testing throughout the duration of the work. He will oversee and enforce the safety regulation

and ensure that all personnel involved in the work abide by these requirements. He will take immediate action

to rectify unsafe conditions.

5.3. Assistant Area ManagerThe Assistant Area Manager will be responsible for the on-site preparation for work procedures, documents and

material control. He will be handling all the initial reports and raw data of performances and accomplishmentsduring the construction procedures.

5.4. Construction SuperintendentThe Construction Superintendent will be responsible for handling all the construction operation conducted on

site. He will be the immediate superior for all site engineers assigned in different areas. Monitors all work

activities and accomplishments in daily basis.

5.5. Field EngineerThe Field Engineer will be responsible for the general site supervision, material control as well as manpower and

equipment arrangement at his assigned area.

5.6. SurveyorThe Surveyor will be responsible for all required survey activities, dimensional control, recording of survey data

as well as control and calibration of survey instruments.


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5.7. HSE SupervisorsThe HSE Supervisors shall monitor the implementation of safety regulations and ensure that all personnel

involve in the work abide. He shall conduct continuous safety inspection and stop any work deemed unsafe and

a risk to personnel, advice the concerned team to rectify the unsafe conditions.

6. PROCEDURE1.0) GENERAL

1.1)Erection of structural steelwork will be carried out in accordance with the relevant BS code in conformitywith the drawings and specifications, in an expeditious manner.

1.2) The suitability and capacity of all plant, equipment etc, used for erection will be to the satisfaction of the

Inspector.

2.0) ERECTION DRAWINGS

2.1) The approved erection drawings and any approved arrangement drawings, specifications or instructions

accompanying them will be followed while erecting the structural steelwork. Erection drawings for structural

steelwork will be prepared by our self and will consist of line-diagrams showing every member in position with

the respective erection mark.

2.2) Erection marks will appear on the structural steel members as detailed and all steelwork will be erected

with the marks in the same relative position as shown on the plan or elevation.

2.3) Any discrepancy between drawings and specifications will be brought to the attention of the

inspector for obtaining his decision.

3.0) STORING AND HANDLING OF MATERIAL

3.1) The fabricated material will be carefully unloaded at site, examined for defects, checked, sorted out for

each building and stacked properly above the ground level, to be kept clean and properly drained. The handling

and storing of the component parts of a structure will involve the use of method and appliances not likely toproduce injury by twisting, bending or otherwise deforming the metal. No member slightly bent or twisted will

be put in place until the defects are corrected.

3.2) All small bends or twists detected in members shall be rectified before such members are put in place. Any

serious bends or defects shall be reported at once to the inspector. The straightening of bent edges of plates,

angles and other shapes will be done by methods not likely to produce fracture or other injury. Following the

completion of the straightening of a bend or buckle, the surface of the metal will be carefully inspected by the

inspector for the evidence of incipient or any other type of fractures.


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4.0) SETTING OUT

4.1) The civil contractor will provide as built drawing mentioning the levels of center to center distance of

foundations and orientations.

4.2) One set of reference axes and one bench mark level will be furnished to the Erection engineer by civil

contractor. These will be used by him for the setting out operation.

4.3) The Erection engineer will assume full responsibility for the correct setting out of all

Steel work and erecting it correctly as per the alignment and levels shown on the drawings and for the verticallyof members.

5.0) FASTENING

5.1) ERECTION AND FIXATION OF ANCHOR BOLTS/FOUNDATION BOLTS

Foundation bolts as per Drawing will be supplied to civil contractor well in advance to cement casting. The

verification of dimensions between foundations should be carried out in joint inspection of civil & erection

inspections after concrete casting.

5.1.1) The Bolts are to be placed vertically at specific positions and size. One nut will be driven full down the

threaded length of all bolts.

5.1.2) The template normally 2 mm thick will be inserted to the group of bolts and fastened with at least one

washer and nut on all bolts, (the function of the template is to maintain the centre to center distance of bolts at

the exposed portion of bolts.)

5.1.3) All groups of bolts will be aligned writ to the centerline of the building. (The reference for center line and

base level of building will be established by civil contractor.).

5.1.4) Once the dimensions are checked and assured the group of bolts are tack weld to reinforcement rods to

arrest any shifting during cement casting.

5.1.5) The exposed ends of bolts will be protected with masking tapes.

5.1.6) The templates will be removed after curing or at the time of erection of columns.

6.0) PREPARATION OF FOUNDATION BOLTS FOR ASSEMBLY OF COLUMNS

All foundation bolts are cleaned by wire brush after removing masking tapes and greased. The top nuts and

washers are removed along with templates. Any distortions/deformations occurred during cement casting will

be attended and corrected.


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7.0) ASSEMBLY AND ERECTION

7.1) Before the commencement of structural steelwork, the Erection engineer will submit a schedule of

operations, detailing the erection procedures to be followed. The schedules will include provisions for any

temporary bracing that may be considered necessary during the erection.

7.2) During the erection of a structure, the steelwork will be securely bolted or otherwise fastened and if

necessary temporarily braced, so as to make adequate provision for all erection stresses and conditions,

including those due to erection equipment and its operation. Such temporary bracing will be maintained in

position until the erection work is sufficiently advanced, and it is ascertained that the bracing provided is nolonger required.

7.3) Connections for temporary bracing and additional holes, members or cleats used to facilitate handling or

erection will be provided in a manner which does not weaken the steelwork already erected, the alignment of

each portion of the structure will be carried out progressively, soon after that portion is erected. Permanent

connections will not be made until proper alignment has been obtained and a sufficiently large portion of the

structure has been erected and temporarily connected so as to ensure that the members thus connected will

not be overstressed or displaced during the progressive alignment of the remainder of the structure.

7.4) Plant and equipment-the suitability and capacity of all plant and equipment used for erection will be to the

satisfaction of the client.

7.5) Storing and handling-all structural steel will be so stored and handled at the site that the members are not

subjected to excessive stresses and damage by corrosion due to exposure to environment.

7.6) Setting out the positioning and leveling of all steelwork, the plumbing of stanchions and the placing of every

part of the structure with accuracy will be in accordance with the approval drawings and to the satisfaction of

the Erection engineer in accordance with the deviation permitted.

7.7) Each criterion will be considered as a separate requirement, to be satisfied independently of any other

tolerance criteria.

7.8) For a column, the actual centre point of the column at each floor level and at the base, excluding any base-

plate or cap-plate. The level of the base plate on pedestal will be so as to avoid contacting with the soil andcorrosion environment.

7.9) For a beam, the actual centre point of the top surface at each end of the beam, excluding any end plate.

7.10) A tension member will not deviate from its correct position relative to the member to which it is

connected by more than 3 mm along any setting axis.


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8.0. LIFTING AND PLACEMENT OF FRAMES

8.1) Assemblies of two adjacent columns, and respective floor beams / rafters are termed as a frame.

8.2) Frames are erected columns first and connecting beams later.

8.3) Adjustment frames are locked with ropes or tie beams for rigidity. Wind bracings are fixed to align frame

where ever required.

8.4) Once four or five frames are erected, the frames will be aligned for verticality, level and straightness.

8.5) Level of the columns will be corrected adjusted with reference to the benchmark provided using shims

packing beneath the column base plate. The measurements are taken/assured using water level at a standard

elevation marking on all columns. (E.g. 500 mm from bottom edge of columns.)

8.6) Verticality of columns are corrected and assured with two plumb bobs, suspended from top of columns /

spirit level / total station And (measured at top as reference) and adjusted from bottom foundation bolts using

shims as well as the rod connections. The foundation bolts and purling bolts will be tightened.

9.0 SITE WELDING AND RELATED ACTIVITIES

9.1) The welding operations at site are reduced to minimum as all components are arriving site fully welded.

However, in case of any repair or welding of cleats etc. at site occurs the standard procedures are as given

below:

1. The welding of surface to remove paints or coatings by wire brush.

2. Edge preparation using portable grinding machine if required.

3. Welding operation using suitable filler electrodes (SMAW).

4. Removal of slag using wire brush.

5. Paint touchup of effected area as per original sequence using hand brush or roller.

10.0 FIXING OF PURLING AND BRACINGS

Once the frames are fixed they will be tightened by the beams and purling. Only one slope of the building and

the side cladding of the respective side will be fitted with purling still the hollow core slabs for mezzanine floor is

erected. The purling is fastened to purling cleats which are already welded to rafters and columns using bolt and

nut with washers. Further to that the purlings are tied up using sag rods. Once the sag rods are fixed horizontal

bracings are fixed. For more details refer Onyx Industries drawings for purling and bracing attached here.


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11.0 PURLIN SHEET FIXING

Polyurethane sandwiched aluminum sheets are laid over purling, sealing tapes are provided at overlaps. These

sheets are bolted to the purling and secured with pop rivets at overlap for additional sealing. For more details

see ONYX INDUSTIRES METHOD STATEMENT attached herewith

12.0 SAFTY DURING FABRICATION AND ERECTION.

12.1) All steel materials including fabricated structures either at fabrication shop or at erection site shall be

handed only by worker skilled in such jobs-where necessary with load tested lifting devices having tested wirerope slings of correct size, from damage. The devices should be well maintained and operated by experienced

operators.

12.2) Oxygen and acetylene cylinders and their hoses shall have distinctive colors. Cylinders should be stored in

upright position in well-ventilated rooms or in open air not exposed to flames, naked lights or extreme heat and

should also be in upright position when they are being used. All gas cutting works shall be done only through

experienced skilled gas cutters equipped with gloves, boots, aprons, goggles and good cutting sets of approved

make.

12.3) While doing any welding work, it should be ensured that the welding machine is

earthed and the welding cables are free from damage. The welder and his assistant will use face shield or head

shield with a welding lens and clear cover glass and their hands legs and bodies will be well protected by leathergloves, shoes and aprons. Combustible materials should be kept away from the sparks and globules of molten

metals generated in any arc welding. In case of welding in a confined place, it should be provided with an

exhaust system to take care of the harmful gases, fumes and dusts generated.

12.4) In addition to precautions against all the hazards mentioned above, erection workers shall be protected in

the following manner.

12.5) All workers must wear helmets and should also be provided with gloves and shoes. In addition those

working at heights shall be forced to use safety belts.

12.6) All structures should be so braced/guyed during erection that there is no possibility of collapse before

erection work is completed.

13.0 FIELD CONNECTIONS

13.1) Field bolting

Field bolting will be carried out with the same care as required for shop bolting.


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13.2) Fillet welding

all field assembly and welding will be executed in accordance with the requirements for shop fabrications

excepting such as manifestly apply to shop conditions only. Where the steel has been delivered painted, the

paint shall be removed before field welding for a distance of at least 50 mm on either side of the joint.

14.0. PAINT TOUCHUP

Even after taking care there are possibilities of surface scratches on coatings these are to be rectified. The area

of repair will be cleaned from all contaminations using wire brushes and cotton cloth. The original sequence of

painting will be adopted for touchup. The shade and coat thickness as per specification will be maintained.

15.0 HOUSE KEEPING

All excess material scraps etc. belonging to Main Job will be removed from site manually.

Trailer Truck - Lifting Belt -

Mobile Crane (40tons) - Nylon Rope -

Excavator (1cu.m.) -

Manpower

Civil Construction Manager - Surveyor -

Construction Superintendent

Field Engineer

-

-

Survey Aides

Rigger

-

-

Electrician

Excavator Operator

-

-

Skilled Workers -


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7. HEALTH, SAFETY AND ENVIRONMENTThe safety guidelines, rules, policies and procedures in HSE Plan and Manual will be strictly followed during the

execution of the works to maintain a safe workplace and incorporate ways of hazard detection and elimination in

the workplace.

The CONTRACTOR shall provide and enforce all safety precautions and regulations and these shall be followed at

all times by all personnel working in the PROJECT.

Unsafe conditions and personal conduct shall not be tolerated and it is each individual employees responsibility

to report unsafe acts or conditions to his supervisor immediately.

HSE is everyones responsibility as it affects every person in the PROJECT.

7.1. Permit to WorkA PTW is to be obtained and issued before the start of any work. The CONTRACTOR work permit system will be

utilized, which is based on the COMPANY PTW system. The following typical documents will be required for this

subject;

- Cold work permit- Excavation certificate- Method statement- RA- Marked up plot plan- Certificate of any heavy equipment that will be used