PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO

OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 1 of 34

Project: Expansion of IWTP-8 Stage-4 DBO

P.O. # 7200040907

Method Statement for Erection of

Building Steel Structure

Document No. 7200040907-JWWF-GC-000 Rev. 00

Owner/Client: MARAFIQ

PMC: ILF CONSULTING ENGINEERS

SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO. (CJSC)

Table of Content

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 2 of 34

SECTION DESCRIPTION PAGE

1.0 PROJECT DESCRIPTION 3

1.1 PURPOSE AND SCOPE 3

2.0 REFERENCES AND STANDARDS 3

3.0 ACRONYMS, ABBREVIATIONS & DEFINITIONS 4

4.0 RESOURCES AND MANPOWER 4

5.0 RESPONSIBILITIES OF KEY PERSONNELS 6

6.0 WORK PROCEDURE 7

7.0 HSE REQUIREMENTS 32

8.0 DOCUMENTS AND PLANNING 33

9.0 PLANT AND EQUIPMENT 33

10.0 QUALITY CONTROL AND ASSURANCE RECORDS 34

11.0 TRAINING 34

1.0 PROJECT DESCRIPTION

MARAFIQ is a Power & Water Utility Company for Jubail and Yanbu, desires to expand IWTP-8 which will be called
Stage-4 with treatment capacity of 125,000m3/day. The plant will be designed to have layout for future Re-use
treatment plant that will further treat 80,000 m3/day of IWTP-8 Stage-4 effluent to meet Demineralization Feed water
quality.

The Expansion project contract is based on a Design, Build and Operate (DBO) concept broken down into an
Engineering, Procurement and Construction (EPC) part and an Operation and Maintenance (O&M) part. The EPC

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 3 of 34

project duration will be for 36 months from Commencement Date, while the O&M period of the contract will be for 5
years from Initial Acceptance of the Works from MARAFIQ.

For further details, refer Document No. MSCF-1-PC-057 Attachment D EPC Scope of Work of Contract

The SSEM will provide design and construction drawings, supervision of work, labor, construction plant and equipment,
materials, tools, Quality control and coordination to execute the works in accordance with the relevant design drawings,
Standards and specifications.

1.1 PURPOSE AND SCOPE

1.1.1 PURPOSE

The purpose of this methodology is intended to provide erection team with recommended procedure for erecting
building steel structure safely and as efficiently as possible. It is important that erection has to be done through
Qualified Steel Erector crew. Only experienced erection and knowledgeable installation personnel familiar with
accepted practices should be employed to ensure a quality of job. All suggested notes are for general guidelines only,
and are close to be all-inclusive as per accepted industry practices. Erectors are advised to refer to standard guidelines
from vendor and MARAFIQ standards for a more detailed erection procedure and MARAFIQ/ILF EHS (Environment,
Health & Safety) Manual. Erection notes on cranes, mezzanines, sheeting & trims including roof curbs must be
followed as applicable.

Erection crew must read and keep available complete set of Erection Drawings and Erection Notes along with this
method statement before commencing any work. T his method shall necessitate documentation in line with project
quality plan, vendor guidelines and per Client requirements in order to achieve the completion of the project in a
manner that all procedures shall be completed with project quality, safety and planning schedule and other project
documents.

1.1.2 Scope

This methodology covers the entire erection of steel structure buildings to be carried out as per approved IFC
drawings, MARAFIQ/ILF specification, applicable codes and standards for Expansion of IWTP-8 Stage-4 project.

2.0 REFERENCES AND STANDARDS

All work done in SSEM scope will be executed in accordance, but not limited, with the following documents as listed
below. Where specifications are not clear or covered by these documents the client will be informed and applicable
documents will be provided by the client in order to have clarity on requirements that should be achieved.

Following references & standards are applicable to this MOS:

• Manufacturer’s Catalogue and Guidelines

• Contractual Requirements and Specifications

• IFC Drawings

• MBMA: Material Building Manufacturers Association

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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Rev. Date Oct. 26, 2022 4 of 34

• AISC: American Institute of Steel Construction

• ASTM A 153 - Specification for Zinc coating (Hot-Dip) on iron and steel Hardware

3.0 ACRONYMS, ABBREVIATIONS AND DEFINITIONS

3.1 ACRONYMS & ABBREVIATIONS

SSEM Saudi Services for Electro-Mechanics Works

PMC Project Management Consultant
PM Project Manager
CM Construction Manager
ISO International Organization for Standardization
OEM Original Equipment Manufacturer
EPC Engineering, Procurement and Construction
O&M Operation & Maintenance
IFC Issue for Construction
QMS Quality Management System
QA Quality Assurance
QC Quality Control
Contractor The Main Contractor
ITP Inspection and Testing Plan
RFI Request for Inspection
NCR Non-Compliance Report
HSE Health Safety Environment
PPE Personal Protective Equipment
PTW Permit To Work

4.0 RESOURCES AND MANPOWER

The team members in all key positions, which require approval from the client, are being submitted to the
client for approval. Positions not requiring approval from the client will have the required qualified and
experienced needed for their position in order to complete their responsibilities successfully.

Should there is need to accelerate the progress and catch-up the project schedule SSEM sub-contractors
may be employed any time but would function as part of SSEM’s team. List of SSEM sub contractors will
be made available once their qualification is approved by the client and mobilized to site.

Organization Chart

SSEM PM – Wael
Fathy

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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Rev. Date Oct. 26, 2022 5 of 34

QA/QC MANAGER VENDOR CONSTRUCTION MANAGER SAFETY MANAGER

DESIGNTEAMOR
MOHAMMED ISMAIL ELDEEB AHMED IBRAHEEM MARIO
KIRBY

CIVIL STRUCTURE
QA / QC LEAD ENGINEER /
SUPERVISOR / PTW COORDINATOR
INSPECTOR SITE ENGINEERS
TBA
WALEED / AZHAR MUSAAB

STRUCTRUAL
ERECTION
ENGINEER
SUPERVISORS

SITE EXECUTION LEADMEN /

SITE EXECUTION WORKERS

5.0 Responsibilities of Key Personnel’s

5.1 Construction Manager –

Construction Manager shall be responsible in providing all necessary resources at site such as
manpower, materials and equipment to carry out steel structure building erection with safety and
quality as per project specification.

5.2 Site Structural Engineer

Shall be responsible for overall execution of works, and also responsible for following all HSE and
quality procedure.

5.3 QA/QC MANAGER

Managing the development and implementation of the QMS for planning, fabrication, inspection,
documentation, and operations activities including: Planning duties within the QA/QC staff and
related work schedules.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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5.4 QA/QC STRUCTURAL INSPECTOR

The QA/QC engineer will be responsible for the quality aspects of the works. He will ensure that
project QA and QC plan as per ITPs and other QA/QC documents are in line with vendor procedures
and other quality documents. The required (RFIs) will be submitted to the MARAFIQ/ILF. He will
proactively coordinate with the material engineer and issue appropriate internal (Site Instructions)
when he sees that performance of works deviate from the approved method of statement or project
and vendor specifications.

5.5 SAFETY MANAGER

Shall be responsible for the implementation of all safety requirements and to ensure that the works
are undertaken in a safe and proper manner, all in accordance with the approved Construction
Phase HSE Plan, the approved method statement and the approved Job Safety Analysis.
Ensure that the procedures and risk assessment are understood, complied and applied in the
worksite. Ensure that all workers are provided with enough/complete information regarding
workplace hazards and planned control measures.

5.6 COORDINATOR
Responsible for taking all necessary steps to prepare, authorize, and issue the Permit to Work after
assessing the work and work site and/or area hazards and the controls to address these hazards.

6.0 WORK PROCEDURE

6.1 RECEIVING, UN-LOADING, HANDLING, STORING, & ALLOCATION OF MATERIAL AT SITE

6.1.1) Access to Site

The vehicle transporting the building parts must have proper access to the jobsite. All obstructions must be
removed. Take careful note of any overhead electric lines or other utilities to avoid hazards. Inspect to
ensure that there is enough room to physically perform the tasks required to erect the building.

6.1.2) Unloading Operations

6.1.2.1) Location of carrier vehicle during unloading

Unload material near their usage points to minimize lifting, travelling and re-handling during building
assembly.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 7 of 34

6.1.2.2) Prepare necessary access for truck:

The edges of the access to site, storage area and at job location and parking stations should be protected to
minimize the danger of skidding of vehicle. Recent incident in industrial area witnessed poorly packed
material falling down on road apparently due to sharp turn of transporting vehicle at the corner of road with
no control on speed. One important safety consideration is the fact that the material which shall be stored on
the floor may subject the workers to possible injury from falling objects.

6.1.2.3) Schedule lifting equipment

The type and size of lifting equipment is determined by the size of the building and the site conditions.
Length of boom, capacity and maneuravility of lifting equipment will determine its location for both unloading
and installation. Use the same lifting equipment to unload and erect structural parts. Lifting equipment costs
are usually minimized by combining the unloading process with building installation.
As soon as the truck is unloaded, the lifting equipment should start erecting the columns and raising the
assembled rafters into position.

6.1.2.4) Consideration of overhead electric wires (General Note):

Overhead powerlines are a continuing source of danger. Extreme care must be used in locating and using
lifting equipment to avoid contact with power lines. At our Job site this risk is not available.

6.1.2.5) Schedule crew:

Depending on the crew size, valuable time can generally be gained if the Supervisor plans and watches
ahead instead of getting up with a particular unloading chore.

6.1.2.6) Check shipment:

When shipments are received in the field, two inspections are necessary:

a) When items, boxes, crates, bundles or other large components are received and unloaded from the
carrier, they should be checked with the packing list. If during inspection, damages and shortages of items
are found, a report should be filed with the transporter immediately at the site. When damages are evident
from the exterior of trailers, they should be opened and inspected thoroughly at the time of receiving
shipments.

b) When bundles, crates, cartons, boxes, etc. are opened following delivery, another check must be
performed to determine the quantity received and their condition.

During inspection, if damages or shortages of any items are found upon opening the crates or cartons, the
written claim shall be sent to as per PO terms. Record such damages with Quality protocols and inform
client.

6.1.3) Handling of Materials

6.1.3.1) Inspect all materials on the truck prior to releasing the tie-downs for loads that may have shifted
during transit.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 8 of 34

Remember: SAFETY FIRST!

6.1.3.2) Offload the material with the help of belt, forklift or crane in such a way that the parent material
should not be damaged. Long pieces should be handled carefully, proper balancing should be made in
order to avoid any damages.

Fig 1 - Crane Setting and Rigging

6.1.3.3) Boxes, chemicals, sandwich panels should be off-loaded carefully in order to avoid any damage in
wrapping or wooden box.

Fig 2 - Lifting degrees

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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6.1.3.4) Any damage in parent material shall be informed to Vendor. Paint damages can be rectified as per
the rectification procedure. (Refer points # 6.1 & 6.2)

6.1.3.5) Blocking by wooden packing under the columns and rafters protects the splice plates and the slab
from damage during the unloading process. It also facilitates the placing of slings or cables around the
members for later lifting and allows members to be bolted together into sub-assemblies while on the ground.
Extra care should always be exercised in the unloading operation to prevent injuries from handling the steel
and to prevent damage to materials and concrete slab.

6.1.3.6) Without any proper information (weight, size, etc.), do not lift any material by hands. Stand on one
side of the panel, lift it by the seam. If the panel is over 3.00 meters long, lift it with two or more people on
one side of the panel to prevent buckling. Do not pick up by the ends.

Fig 3 - Recommended manual handling

6.1.3.7) 's roof and wall panels including color-coated, galvalume and galvanized, provide excellent service
under widely varied conditions. All unloading and erection personnel should fully understand that these
panels are quality products which merit cautious care in handling.

6.1.3.8) When handling or uncarting these panels, lift rather than slide them apart. Burred edges may
scratch the coated surfaces when sheets are slid over one another. Never allow panels to be walked on
while on the ground. Rough and improper handling of a panel is inexcusable and a prime example of poor
job supervision. Use gloves when handling metal panels to prevent hand injuries. Be aware of the dangers
of handling panels on a windy day. A large panel can catch enough wind to knock a worker off his feet, even
at ground level.

6.1.4) Storage of Material

6.1.4.1) Material shall be kept in plane surface. The soil should be strong enough to withstand the steel
loads.

6.1.4.2) Material should be kept in heap. Separate individual material with proper thickness of wood.
Multiples of wood for higher thickness can be used. (Refer point #3.5)

6.1.4.3) If material is being erected after more than 15 days from the offloading, it should be covered by
canvas tarpaulin or equivalent in order to prevent from rain, humidity, snow, water entrapment and dust.
Proper ventilation for air should be made after covering the heap.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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6.1.4.4) If water is allowed to remain for extended periods in bundles of primed parts, the pigment will fade
and the paint will gradually soften reducing its bond to the steel. Therefore, upon receipt of a job, all bundles
of primed parts should be stored at an angle to allow any trapped water to drain away and permit air
circulation for drying. Puddles of water should not be allowed to collect and remain on columns or rafters for
the same reason.

6.1.4.5) All primer should be touched up as required before erection. SSEM has provided Quality document
for such requirement.

Under no circumstances should panels be handled roughly. Packages of sheets should be lifted off the truck
with extreme care taken to ensure that no damage occurs to ends of the sheets or to side ribs. The
packages should be stored off the ground sufficiently high (Minimum 100mm clearance from the ground
level, throughout the size of material) to allow air circulation underneath the packages. This avoids ground
moisture and deters people from walking on the packages. One end of the package should always be
elevated to encourage drainage in case of rain.

6.1.4.6) Care should always be taken when walking on panels. Use safety lines and nets when necessary!
Panels are slippery. Oil or wax applied to the roof and wall panels for protection against weather damage
will make them a very slippery surface. Wipe dry any oil that has puddled from bundles stored on a slope.
Dew, frost, or other forms of moisture greatly increase the slipperiness of panels. Always assume panel
surface is slippery and act accordingly.

6.1.4.7) Use wood blocking to elevate and slope the panels in a manner that will allow moisture to drain.
Wood blocking placed between bundles will provide additional air circulation. Cover the stacked bundles
with a tarpaulin leaving enough opening at the bottom for air to circulate.

Fig 4- Recommended Storage of Panels

a) Block above ground to keep water out.

b) Slope bundles for drainage.

c) Stack sheeting with spacers between bundles

6.1.4.8) Retain stenciled part mark numbers on the members for easy identification & assembly.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 11 of 34

6.1.4.9) The Sandwich panels should be stored in an area where they are not susceptible to damage. Also ensure
the place of storage is free from moisture and the panels are stored on a level surface.

6.1.4.10) When the Sandwich panels are exposed to the atmosphere, the following care to be taken: Provide wood
spacers at regular intervals and place the panels above that. This is to allow ventilation in order to prevent moisture
stains on the sheet metal laminations. Cover the stack of panels with tarpaulin to avoid sunlight and
moisture. Take care that the tarpaulin does not go to the ground, as it will block the air circulation.

6.1.5) Allocation of Material on Site

5.1) As the building material is unloaded, it should be placed in and around the building site near the place
where it is intended for installation. While each job will vary according to size or site conditions, the layout
below typifies an arrangement which offers convenience and accessibility during assembly and erection.

6.1.5.2) Rigid frame column is laid in position for rising.

5.3) Material is provided with two stenciling (hard punch, black paint marking) for the correct identification.
Both should match to avoid any confusion. Any mismatching should be communicated to the Erection
Coordinator.

6.1.5.4) Rafters are stacked for sub-assembly and easily accessible for setting.

6.1.5.5) Girts, purlins, eave struts and bracing are divided according to the requirements of each bay.
Nested parts (purlins, girts, etc.) should be separated and blocked to allow drainage of collected moisture to
prevent rusting, prior to erection. Cold formed sections or any pre-galvanized materials should be kept
protected from rain.

6.1.5.6) Endwell materials are to be laid out at each end.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 12 of 34

Fig 5 - Positioning of Installation Material

6.1.5.7) Small components (nuts, bolts, clips, fasteners etc.) are stored in a designated area convenient to
all parts of the building.

6.1.5.8) Wall paneling, roof paneling and other components which will not be used in the initial stage of
erecting the steel are placed outside of the work area and properly stored and protected from the weather.
(Refer points # 6.1.4.1 to 6.1.4.8).

6.1.5.9) Insulation roll should not be stored on the edge of the roll as this will damage the edges.

6.1.6) Rectification of Any Damage

6.1.6.1) Any paint damages shall be made with the minimum quantity
of touch up paint supplied by before doing erection. This will help reduce rusting.

6.1.6.2) Any material missing, excess or damage shall be informed to 's Erection Coordinator with
immediate effect.

6.2 PLAN ERECTION ACTIVITY IN ADVANCE

Maximum efficiency and progress of erection should be obtained when the following conditions are met
during the installation of building Steel Structure:

1. When safety practices with TBT are discussed and initiated in advance of any work procedure.

2. When the overall work of erecting the building is divided into individual jobs, and when each job is
assigned (in proper sequence) to teams of workers consisting of two to seven workers each, with three to
five workers teams preferred.

3. When individual workers are properly trained and instructed in advance as to what they are to do and
the safe way to do it. This eliminates time wasted while waiting to be told what to do next.

4. When building parts are properly laid out and in accordance with 6.1.5.6 in advanced planning so as to
avoid lost time in repetitive handling or in searching for specific items.

5. When as many parts as can be safely raised in a single lift are bolted together in sub-assemblies on the
ground where assembly work is faster and safer, thereby, requiring fewer lifts and fewer connections to be
made in the air.

6. When Installation of the steel framework starts at one end and continues bay by bay to the other end of

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OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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the building.

7. When the first bay is completed, the individual frames are erected and tied together by skeleton purlins,
and the fill-in purlins are installed after the costly lifting equipment has been released.

8. When tools and equipment of the proper kind, in good, safe condition, are available in sufficient quantity.

6.3 MAIN COMPONENTS OF PRE-ENGINEERED STEEL STRUCTURE BUILDING-

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OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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Fig 6 - Structural Building Components Illustration

Steel Structure Buildings or Pre-Engineering Buildings (PEBs) are made of:

1. Primary Components
2. Secondary Components
3. Roofing or Cladding
4. Other Accessories
6.3.1 Primary Components

Primary Components include 3-main parts as below:

a. Main Frame: The main frame is the basic structure of the building which is made of rigid steel. It is built using tapered
columns and rafters, sometimes also referred to as built-up members. There are spliced plates welded to the end of these
tapered sections. The splice plates of connecting sections are bolted and the frame is erected.

b. Columns: Columns are used to transfer the vertical load to the foundations. These are generally made up of I sections which
give benefits in terms of strength while being economical to produce. using tapered columns and rafters, sometimes also
referred to as built-up members. There are spliced plates welded to the end of these tapered sections. The splice plates of
connecting sections are bolted and the frame is erected.
c. Rafters: Rafters are sloped structural members or beams that extend from the ridge or up-to-the wall-plate. They are
designed to support the roof deck and other loads associated with it.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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6.3.2 SECONDARY COMPONENTS

Purlins: Bracings, Tie rods, Angle bracings or X bracing, High Tensile Bolts and washers etc. are classified as secondary
components that are used in a PEB. These parts are used to support walls and roof panels. In addition to that, the secondary
members also help the building withstand the longitudinal loads that the building may see during earthquakes and heavy winds.
Purlins are mostly unique cold roll-formed sections used to fix roof and side claddings. They are available in different variations
such as Z, C and Sigma purlins which are denoted by their cross-section.

6.3.3 ROOFING OR CLADDING

Roofing sheets,: as their name suggests, provide protection to the building interior from the environment. They can be designed to
either block sunlight or allow partial sunlight to illuminate the interiors, depending on the requirement. Size, lengths and other
necessary information is provided in IFC drawings.

6.3.4 Other Accessories

Several other accessories such as Windows, Turbo Ventilators, Louvres , Sliding Doors , Roll-Up Shutters , Skylight Sheets ,
Ventilators , Downspouts etc. as per IFC and project requirements

6.4) ANCHOR BOLT SETTING

6.4.1) Refer to IFC drawings where all dimensions are in mm unless noted otherwise provided.
6.4.2) All anchor bolt diameters are in mm. Anchor bolt projection must be in accordance with the detail shown in the Anchor
Bolt Plan in IFC drawings.

Fig. xx - Dwg. Reference: 7200040907-JWWF-SD-A102 FOR BUILDING 30/31 & 37

6.4.3) Bracing reactions are to be considered with the main frame reactions.

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OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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6.4.4) Foundations are designed for the given reactions.

6.4.5) The slab or edge of beam should be square and level within 5mm tolerance.

6.4.6) Anchor bolts should be set to the given dimensions and projection, with maximum deviation of 5mm. Anchor bolt threads
should be protected during the concreting operation, or thoroughly cleansed after pouring. All templates should be removed.

6.4.7) The customer is responsible for accurate locations of building lines and bench marks at the site of the building.

6.4.8) The installation of anchor bolts and embedded items must be done in accordance with the Code of Standard Practice for
Steel Buildings of AISC section.

6.4.9) Anchor bolts and foundation bolts shall be set by the SSEM Qualified team or Sub-Contractor. (in accordance with the IFC
Drawings for Anchor Bolt Plan. Maximum allowable tolerances are as follows: -

a) 3mm center to center of any two bolts within an anchor bolt group.

b) 6mm center to center of adjacent anchor bolt groups.

c) Elevation of the top of anchor bolts +/- 12mm.

d) Maximum accumulation of 6mm per 30 meters along the
established column line of multiple anchor bolt groups but not to exceed a total of 25mm.

e) 6mm from center of any anchor bolt group to the established

column line through that group.

f) The tolerances of paragraphs b,c and d apply to offset dimensions shown on the plans, measured parallel and perpendicular to
the nearest established column line for individual columns shown on the plans, to be offset from established column line.

6.4.10) Anchor bolts shall be set perpendicular to the theoretical bearing surface unless shown otherwise.

6.4.11) All reactions and loads are provided in Kilo-Newton and Meter units unless noted otherwise in IFC drawings.

6.4.12) While installation, shim plates to be used below column base plates to level the pedestals. MS Shims (50 mm x 50 mm) of
size 2 mm to 10 mm to be used below the base plates These gaps below base plates should be grouted by civil contractor using
conbextra HF/GP2 after the completion of plumbing and alignment of steel building.

6.5) SQUARING THE FOUNDATIONS

To obtain best quality results check foundations accuracy before erection of steel structure components. Below three methods are
applied depending upon the size and length of building.

1. Diagonal Method: The greatest accuracy in squaring the foundation is obtained by the diagonal
method. Through adjusting the lines until the two diagonal dimensions “A” and “B” are equal.
Adjust the foundation layout lines until dimensions “A” and “B” are equal in length. ¨ Check again for correct building length and
width, as per drawings issued for construction. ¨ To be used for buildings smaller than 21 m wide or 21 m long.

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Fig 7 - Diagonal Method Illustration

2. Right Angle Method: On larger buildings, where the length of the diagonals exceeds the commonly used
tape, the right-angle method may be used. Establish the dimension of the two sides “C” & “D” of the right triangle as
shown in the chart and adjust the lines to obtain dimension “E” Repeat for the other three corners. ¨ To be used for
buildings up to 30 m wide or 60 meter long. Project Building No. BUILDING 30/31 & 37 Workshop and Mess is almost
49.7 x 10.6 meter long.

Fig 8 - Right Angle Method Illustration

3. Transit Method: Buildings larger than 30 m wide or 60 m long should be squared with a transit. Be sure
transit is in good condition, accurately located over the intersection point and absolutely level. Locate transit exactly
over corner intersection point of string line. Sight along one building line, swing transit through 90˚ to establish
adjacent building line.

For accurate results, transit must be exactly level and in perfect working condition. ¨ Check diagonal dimensions as
shown in “Diagonal Method”. Project Building for chemical Storage Building No. 12 A/B/C & 32 is almost 69.5 X 17.3-meter
size. Refer to IFC drawing. 7200040907-JWWF-SD-114.

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Fig. 9 - Transit Method Illustration

6.6) STRUCUTRAL FRAMING (INSTALLATION OF STEEL STRUCTURE BUILDING)

The intermediate or interior frames nearest the bearing end wall are usually erected first.
The proper completion and plumbing of this first bay are extremely important to the successful completion of the
building.

Although several methods are used to erect rigid frames, it has been found most satisfactory to erect the columns first,
tie them together with the girts and tighten the anchor bolts. The anchor bolt tension may need to be adjusted to seat the
rafter. Temporary bracing should always be installed as soon as sections are lifted in place. In most instances the work
proceeds from outside columns inward toward the peak until the entire frame is bolted into place.

The same general procedures of installation apply to either clear span or multiple span frames. In the case of the latter,
the support for rafter sections during installation is generally supplied by the interior columns, themselves, making
temporary supports unnecessary.

6.6.1) STRUCTURE FRAMING INSTALLATION – COLUMN ERECTION - STEP- 1

Before erecting column shim plates to be kept level to FFL Columns should be erected just prior to roof
rafter and secondary framing Installation. Check anchor bolt plan and Installation drawings for special conditions.
2. Erect columns in place and tighten anchor bolt nuts. Use safety authorized lifting plan.
3. Attach girts and install temporary bracing.

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Fig. 10 - STEP-1 Illustration

Fig 11 Main Frame Endwell Corner Details fig. 12 - Purlin & Girts connections

All connections are field bolted. Note below:

2. Refer to your installation IFC drawings for quantity and bolt size. All bolts are high strength. All bolts are to be
installed using “Turn of nut method”.
5. Install and tighten all frame connection bolts as each rigid frame is assembled.
6. All the High Strength bolts shall be tightened as mentioned in the Table below.

It is the responsibility of the installation personnel to provide temporary Installation bracing until structure is complete.

Fig 13 - Vendor Recommended Torquing Values Table

Attachment of flanges braces shall be done on the ground. Check your primary framing drawings for flange brace
locations. Attach flange braces to the roof rafter assembly while on the ground to one side, attach flange braces to
opposite side when roof rafter assembly is raised into vertical position. Refer Fig 14. As example.

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Fig. 14 – Roof Rafter with Flange Fig. 15 – Two Point Sling of Roof Rafter
f
Fig 15. above may be used for rigging slings for lifting roof rafter assemblies. Regardless of the method you use, make
sure, it is suitable and adequate for the job when considering size of the roof rafter and hoisting equipment available.

6.6.2) STRUCTURE FRAMING INSTALLATION – RAFTER ERECTION –STEP-2

1. Raise rafter beam into place.

2. Hold rafter beam in place until it is securely bolted to the column and temporary bracing is installed to hold
assembled rigid frame in place. See fig. 16.

Fig. 16 – Two Point Sling of Roof Rafter

Note: Assemble roof rafter components on the ground. Make sure roof rater is level and straight before structural bolts
are fully tightened. Bolt in place as many clips and flange braces as possible before raising roof rafters to reduce
Installation time as it is easier to assemble these pieces on the ground than it is to do it in the air. For suggested
methods of hoisting roof rafters, see later pages of this method statement.

6.6.3) STRUCTURE FRAMING INSTALLATION –Perline erection - STEP-3

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1. Continue raising rafter beam into place.

2. Hold rafter beam in place until it is securely bolted to the column and temporary bracing is installed
to hold assembled rigid frame in place.
3. If the roof rafter consists of more than two segments, additional purlins are to be installed while roof rafter is held in
place so that there at least two purlins spanning between roof rafter segments.

6.6.4) STRUCTURE FRAMING INSTALLATION – BRACING-CONNECTION- STEP-4

1. Bolt all remaining girts and purlins in place in the braced bay.
2. Install bracing and flange braces.
3. Proceed to plumb and square the braced bay.

Fig. 17 – Rafter, Perlin, Grits, bracing, bolting

Note:
Keep plumbing and squaring the braced bay.
No further installation is to proceed until item Plumbness is fully completed.

6.6.5) STRUCTURE FRAMING INSTALLATION –PLUMING & SQUARING - STEP-5

As soon as all the purlins, girts and eave struts have been installed in the braced bay, it should be accurately plumbed
and squared to ensure correct alignment of the succeeding bays. This is accomplished by adjusting the diagonal bracing
and temporary bracing in the roof and wall planes.

1. With all the rods loosely installed, plumb the column of the rigid frame by tightening or loosening the nuts of the
brace rods. Remember: when one brace rod is tightened, the other rod must be loosened, when columns are plumb,
sidewall brace rods should be finally tightened to a “Taut” condition. Dimension “B” must be the same
as dimension “A” for column to be plumb, See Fig below.

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Fig-18 – Plumbing Building

2. The Roof Beams should be aligned in progression from the eave to the ridge. Plumb the roof rafter at each
connection point and the ridge by tightening or loosening
the rod at those points. Stretch a line across the flanges at the base of the column. Drop a plumb bob from
the ridge point of the roof rafter, adjust as necessary so that the plumb bob is in line with line at base of columns. When
this occurs the ridge is plumb, See Fig 2.

3. Check to be sure that ridge point of the rigid frame is over the center line of the building. See fig 3 Measure to
establish bim “A”, dimension “B” is 1/2 bim. “A”, Establish center line of buildings from dimensions “A” & “B”
and mark center line of flour slab., Drop a plumb bob from ridge point of building. Adjust ridge point if necessary, so
that plumb bob aligns with centerline of the building.

Note: The plumbing and squaring operation is one of the most important functions of the installation
sequence. Spend sufficient time on this sequence to ensure the braced bay is level, plumb and square to
avoid problems when continuing the Installation sequence.

6.6.6) STRUCTURE FRAMING INSTALLATION –EAVE STRUTS AND PEAK PERLINS- STEP-6

Proceed with the installation of the remaining frames and bearing end frames. In each braced bay shown on the
installation drawings, repeat step 4 before proceeding with the installation of additional bays.
Eave struts and peak purlins may be installed in intermediate bays between braced bays to stabilize frames. However,
do not start more work than can be completed in a work day to ensure all structural framing is completed in that days
before leaving the site at the end of the day, Remember – Safety is First.

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Fig 19 - EAVE STRUTS, PEAK PERLINS

Note: As installation progresses, each braced bay must be fully completed as outlined in step 4 before
proceeding with the installation of additional bays.

6.6.7) STRUCTURE FRAMING INSTALLATION –PIANO WIRE, SAG ROD NUTS- STEP-7

Complete installation of all red steel components. Align the purlins by stretching the piano wire between rafter and
along the flanges of the purlins, adjust the sag rod nuts to match the purlin to the piano wire.
Upon completion of all secondary framing in the braced bay, plumbing and squaring the braced bay, installing
secondary framing in the end bay, paneling may commence and be worked in conjunction with the completion of the
balance of the red steel. This could save time on larger buildings if seperate sheeting crews are used.

Note: When the building reaches this stage of installation, sheeting should proceed immediately. The structure without
sheeting should not be left standing for prolonged periods of time without taking proper precautions
(Temporary bracing, blocking etc.), to prevent wind damage especially to purlins and girts due to excessive vibration
they are exposed to in the un-sheeted conditions.

6.7) INSTALLATION OF WIND BRACING

The diagonal bracing is usually a round rod. It should always be installed as shown on the installation drawing and
should be tensioned so that the building will not sway or rock when the wind blows. Care should be taken, however,
not to over tighten and bend the structural members. The workman should watch the structural members carefully as he
tightens the bracing. Occasionally the bracing in the wall of a building cannot be installed in the specified bay because
of doors or other complications. Usually these can be moved to other bays without affecting the structural integrity of
the building. However, before moving any wind bracing check with. Never modify a building without first notifying
and getting back a written confirmation.

6.8) INSTALLATION OF SAGROD

Sagrod on the wall is a tension member used to limit the deflection of a girt in its weak axis direction. On the other
hand, Sagrod on the roof is used to limit the lateral displacement of the bottom flange or purlins caused by the
horizontal component of the gravity load. Generally, both are used to keep the purlin / girt from sagging.
For erection purposes, it is used to properly align purlins / girts. Sagrod are shown in the roof framing plan,
sidewall and end wall framing elevations (wherever required). All Sagrod are supplied with 2 nuts at each end.
Refer to schematic diagram below for sag rod fixing at roof and sidewalls.

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FIG 20 - WIND COL. CONNECTION FIG 21 - SAGROD IFC DETAILS

6.9) ALIGNMENT OF CRANE BEAMS

Cranes are considered in chemical storage, and in workshop buildings. Crane beam alignment is very important for
smooth, trouble free performance of Cranes. It is important that the centerline of crane beam web and crane rail is
aligned to the acceptable
The following procedure shall be followed:
1. Check straightness of crane beams on ground before Installation.
2. Check the level of top of crane brackets and level the columns base plates accordingly.
3. Mark the center of web on the top flange / channel of crane beam and mark the same by using punch marks for easy
identification.
4. Check the straightness, level of crane beams both the length and width of the building as per the tolerance mentioned
in the table. dimensions. (Please ensure proper taping method is followed)
5. Stretch a piano wire (without any bends) to match punch marks already made on the crane beams and adjust the
crane beams till all the beams are to a straight line and as per the tolerances mentioned in the table and
complete alignment of runaway beams along one side first.
6. Follow the same procedure on another side
and adjust the crane beams to a straight line. While aligning the beams to the straight line, ensure the span and diagonal
dimensions for each bay is within the acceptable tolerance.
7. Install the bracing angles / surge girders members. Ensure the span and diagonal dimensions are not disturbed while
installing these members.
8. Ensure the rail is laid as per the straight lines marked on the beams top flange and the maximum direction between
rail and web of crane beams not exceedingly more than 3/4” of web of crane beams.
9. Record all the readings in a chart and accept the alignment of crane beams and crane subject to within the acceptable
tolerances mentioned in the table.

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Note: a. Use piano wire / Theodolite for checking the straight line of crane run way beams. b. Ensure uniform
(measurable) pull is given while measuring the span and diagonal.
Other items such as louvers, openings for exhaust fans, ladder attachments shall be as per IFC drawings.

6.10) Sheeting

All the primary and secondary framing should be erected plumbed and the bolts properly tightened before the sheeting
of the building is started. Framed openings should also be installed, plumbed, squared and tightened
before sheeting begins. The steel structure building panels are designed for both roof and wall applications. Its
symmetric profile allows for installation without regard to sheeting direction. Sheeting can be started from either end
of the building; however, by applying the sheets toward the direction of the prevailing wind, the overlap line on the
side of every third rib will be less visible. Where heavy prevailing winds occur; place the edge to be lapped into the
wind!

Fig 22 - - Roof Sheeting Arrangement at Chemical Building

6.11) Fatteners Installation

Correct fastener installation is one of the most critical steps when installing roof panels. Drive the fastener in until it is
right and the washer is firmly seated. Do not overdrive fasteners. A slight extrusion of neoprene around the washer is a
good visual tightness check. Always use the proper tool to install fasteners. A
fasteners drive (screw gun) with an RPM of 1700- 2000 should be used for self-drilling screws. A 500-600 RPM
fastener drive should be used for self-tapping screws. Discard worn sockets; these can cause the fastener to wobble
during installation. The correct degree of tightness can be achieved by using screw gun with depth gauge.

Fig 23 - bolting / Screw from IFC Drawing

6.11.1) Screw alignment

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Good alignment of the screws, especially on the wall panels, will give a professional appearance to the wall panel
installation. One way this can be accomplished is by pre-drilling holes in the panels at identical locations. Up to 15
panels can be stacked together and drilled using a template panel. Use 4.7 mm diameter drill bit for panel to structural
fasteners and a 3 mm diameter bit for the side lap clearance holes. It is important to
clean metal failings off panel surfaces after drilling to avoid rust stains. The template panel should be laid out for the
proper screw locations in accordance with the building Installation drawings. Since re-drilling
will “hand” the panels, it will also be necessary to select the end of the building from which the paneling is to begin.
Before drilling the template panel, it should be checked for proper hole locations against the building framework. Be
sure there is no excessive deflection in the purlins and girts.

6.12) Aligning the Girts

Installation of the building walls is generally done before the roof. Before starting the wall installation, check to be sure
that the eave strut and girts are straight and plumb. One method of aligning the girts is to cut temporary
wood blocking to the proper length and install between the lines of girts. This blocking can be moved from bay to bay,
which will reduce the number of pieces required. Normally, two line of vertical blocking per bay will be sufficient.

6.13) WALL PANEL INSTALLATION

Fig 24 - Wall Panels framing From IFC Drawing

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1. Block girts to “level “position before starting panel Installation, maintain blocking until panel to structural fasteners
are installed.
2. Align and plumb first wall panel.
3. To prevent “Oil - Canning” all panel fasteners should start from base angle and secured to each structural girt
towards the eave.
4. Foundation must be square, level and correct to the out to out of steel dimensions.
5. Installation crew is to clean all wall panels before leaving job site

6.14) ROOF PANELS INSTALLATION

Structural Rib Roof Panels may be damage by Installation manpower movement. Traffic damage can be avoided by
the use of walk boards. Two sets are suggested; one for the workmen laying or fastening panels, the other for traffic up
and down the roof. The walk boards are also an excellent safety precaution on steep roofs. If you must step on the roof
panel, always walk on the flat of the panel, on or close to the purlins.
“NEVER WALK ON THE MAJOR CORRUGATIONS”

Fig 25 - Chemical Storage Building Roof Panels & Walkway Boards

Installation of Rib Roof Panels

1. Refer to Roof Panels section in IFC drawings locate Rib Roof Sheet and Rib Peak Panel.
2. Locate the center of the first major Rib exactly over steel line attach panels then attach peak panel.

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3. Each side of Rib Panel and the Rib Peak Panel must be run in conjunction with each other to ensure correct
alignment.
4. Refer to other sections of this manual for details relating to eave alignment of roof panels, sealer application and
fastener types.
5. All damages paint finishes are to be retouched to prevent rusting.
6. In the event a screw is installed in the wrong location or should a screw break during the driving process, remove the
screw and install one of a large diameter to prevent leaking.
7. Concentrated heavy loads (Personnel or material) occurring on the roof during construction shall be distributed
uniformly.

6.15) ROOF SHEETING SEQUENCE AND MASTIC APPLICATION

Fig 25 - Vendor Recommended Typical Sheets Setting Sequence

1. It is recommended where possible; sidewall and end wall sheeting should precede roof sheeting.
2. The building is to be plumb, square and tight before sheeting is begun.
3. Sheeting is shown in a left to right pattern as an illustration only. Actual sheeting is to begin at the leeward end of
the building so that all panel laps will be away from the prevailing wind.
4. Check location of center line of high rib 5 M from steel line at end of building so adjustment of gain or loss can be
made if necessary.
5. Installation crew is to sweep roof panels clear of all metal shavings daily until roofing is completed.
6. Roof and wall liner panels to be laid prior to roof and wall sheeting.

Safety Note:

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1. Always wear rubber sole work boots! When on the roof, use approved protection devices such as safety lines, safety
nets or catch platforms.
2. Install all the structural screws before proceeding to fix the next panel.

Accessories like Closure Strip, Skylight, Rake Trim, flashing, sandwich Panels, Sliding Doors may also part of
building structure. Subsequently sliding Door. Assemble Vent on below ground and lift it safely and install on position.

Fig.26 – skin skylight installation, Rake trim and Sandwich Panels

6.16) DOOR INSTALLATION PROCEDURE

The door section consists of three panels, which will be marked individually. Assemble panels as per the drawings.
Read the drawing carefully before starting installation. After the three panels are assembled to form a frame, the PVC
plastic strip (as a thermal break) must be placed and aluminum angles to be fixed with the help of pop rivets, as per the
sketch indicated.

Fig. 27 – Door Sections

The door and the door frame must be horizontally and vertically aligned to ensure proper sealing of the door before
proceeding with further panels installation.”

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Once the door frame is ready in assembled condition, fix the door to the door frame. Align the door properly. Fix the
hinges on to the doorframe and the door handle latch to be fixed. The door must be closed and latched before the door
anchor angle is fastened to the flour. Adjust the door latch so that the door will seal on all
edges of the gasket. Ensure the gasket is totally sealed all around without any gaps.

Position of door hinges should be properly identified in order to ensure that the sweeping gasket just makes contact
with the FFL when the door is in a closed position.

6.17) Final Checks of Installation

1. Ensure to seal all gaps, penetrations etc., with silicone sealant, which will be supplied in the hardware box along
with the panels by Vendor.
2. Check all the cam locks are engaged and all the joints sealed.
3. Be sure to plug all the holes with the caps provided in the hardware box. This is to prevent moisture from entering.
4. Make sure the heater wire is properly installed.
5. Check whether all the door gaskets seal around the entire door frame perimeter.
6. Check all the door hinges and door handle have been properly tightened and the trims have been fixed without any
gaps.
7. Check all the ceiling supporting systems have been installed properly.

6.18) Regular Maintenance

1. Using warm water and mild detergent, clean the interior and exterior panels.
2. The door gaskets should be cleaned by using warm water and wiping dry with a soft cloth. While cleaning,
3. check if the gaskets are intact without any gap. A visual check for wear and tear is also required. If the gasket is torn
or broken, it has to be replaced.
4.The heater wire around the door frame should be checked periodically. If frost or sweating is noticed, the heater wire
must be replaced.
5. All the screws and hinges and handles should.
6.The interior wall panels and ceiling panels must be checked for missing cam lock caps. If found missing the cap has
to be immediately fixed to avoid moisture entry.

6.19) Recommended Tools

Below is list of mostly used tools for erection of Steel Structure-

Screw Guns Magnetic Spirit Level

Sheet Metal Nibbler Framing & Try Squares
Power Impact Wrench Transit & Level Rod
Electrical Drill Motors Plumb Bob & Chalk String
Electric Extension Cords Nylon Line 3/8”
Electric Arc Welder Manila Rope
Generator Caulking Guns
Gas Cutting Torch Brooms
Socket Wrenches Paint Brush
and ratchet drive handle. Tool Box
Spud Wrenches

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Box End Wrenches

Open End Wrenches
Vice Grip Pliers
Pop Rivet Tool
Hammers
Sheet Metal Cutter
Wrecking Bars
Drift Pins
Hack Saws
Slings
Work Platform or Manlift
Chain Block
Safety Belts
Steel Measuring Tapes

7.0 HSE REQUIREMENTS

The Health Safety and Environment Project Management Plan institutes the overall mechanism for the risk management processes
with regard to the Project. Processes are implemented at the earliest stages within the project cycle, identifying risk and facilitating
opportunity for the application of appropriate mitigation strategies. As an integral part of the planning process, prior to the
commencement of any operational activity a suitable and sufficient specific assessment (RA) of the risks associated with the works
should be undertaken.

Below are minimum HSE requirements.

 All works shall be done in accordance with the MARAFIQ Project HSE Manual and all individual activities shall be set up in
an orderly manner to ensure compliance with the requirements.
 Work permit shall be secured by the Site Engineer prior to carrying out any work and work shall proceed in accordance
with the specific measures itemized in the permit
 Relevant information on the permit shall be made available to all operative
 -performing the work by providing a copy to the Bulletin Board nearest or adjacent to the work area.
 The Safety Supervisor I Safety Officer is responsible along with the Site Engineer for ensuring that all operations are being
done with due regard for the safety of personnel property as well as the general public.
 All PPEs shall be worn by personnel performing the work at all times in full compliance to safety rules on PPE Additional
PPEs like respirator. rubber hand gloves and disposable coveralls shall be provided during lamination and grinding works.
 Barricades shall be provided to isolate the work area but proper access shall be provided to all operatives.
 The work site shall be maintained in a clean and tidy condition

7.1 SAFETY INSTRUCTIONS

Starting instructions will be given by the safety officers and site supervisors at the start of each activity to explain the methodology of
works and to communicate safe working procedures to the operatives. These talks are structured in a way to highlight to major risks
involved in the activity and the various control measures required in order to minimize the risk. It is delivered in a manner such as
the key points will be remembered by the operatives receiving it.

Toolbox talk meetings will be held for each crew, on group or employees, regarding more general topics of the Project HSE Policy;
in example lesson learned, near miss reports, implementation of the requirements and message from the LBS management or
Employers HSE personnel.

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 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

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Rev. Date Oct. 26, 2022 32 of 34

7.2 Personal Protective Equipment’s

All workers will be issued and trained in use of the required PPE equipment to comply with contract procedures and local regulations
and will be supplemented with PPE as required by MSDS & Risk Assessments. This will include but will not be limited to;

 Hard Hats
 Safety Boots with ankle support and steel toe caps
 Safety Goggles
 High Visibility Vests / Overalls with integrated reflective strips
 Hand gloves
 Face Masks
 A variety of mechanisms, such as method statement briefings and toolbox talks will be
 implemented to ensure all relevant personnel are appropriately informed.
 In addition to their safety induction received at their arrival on site, all the workers will have a
 toolbox meeting in order to be briefed about the risks of their specific work task, prior to start of works.

7. 3 ENVIRONMENTAL ISSUES
As part of the development of the SSEM Environmental Management System(s) the significant issues that are faced
both on site and within offices or other facilities should be addressed. This approach subsequently allows for a
systematic focus upon the important environmental aspects to be adopted which in turn facilitates prioritization of
limited resources.
7.3.1 MITIGATION MEASURES
 Toolbox talks and care shall be taken to use plenty of water during high humidity weather.
 General housekeeping rules for all operatives shall be observed.
 Stationary equipment e.g. lighting towers, gensets etc. will have containment trays beneath.
 Maintaining good housekeeping minimizes hazardous waste production by increasing the
likelihood that chemicals will be used before they expire and reducing the need to clean up
chemical spills.
 Hazardous substances shall be stored as per manufacturer’s recommendation or as
mentioned in safety data sheet.
 Hazardous waste shall be collected and disposed in hazardous waste skip.
 Spill kits shall be made available on site.
 Dip tray with a capacity of 110% shall be provided to control the chemical spill.
 Unauthorized personnel entry shall be restricted.
 Organize the work and setup tools and equipment correctly.
 Check all equipment’s are in good working condition.

8.0 DOCUMENTS AND PLANNING

Doc No. 7200040907-JWWF-GC-000 Rev 00 P.O. # 7200040907

 PROJECT: EXPANSION OF IWTP-8 STAGE-4 DBO
OWNER: MARAFIQ
SSEM: SAUDI SERVICES FOR ELECTRO MECHANIC WORKS CO.
TITLE: Method Statement for Erection of Building Steel Structure

Revision 0 Page No.

Rev. Date Oct. 26, 2022 33 of 34

Work will be performed in accordance with the APPROVED documents; IFC Drawing for Building, Vendor
guidance. Planning schedule will be updated for delivery, shifting and installation of material. All lead
mechanical engineer site mechanical engineer and material engineer shall have a 3-weeks look ahead
schedule of GRP stock inventory.

9.0 PLANT & EQUIPMENTS

SSEM will provide necessary tools and machinery, manual and torquing tool throughout the project which is depending upon its
requirements. Quantities will be determined by actual site/Store demand. Equipment will be inspected prior utilizing.

10.0 QUALITY CONTROL AND ASSURANCE RECORDS

All records relevant to the above procedure will be retained by the Quality Control department in the site office, for the duration of
the project, before being handed over to the Contractor in accordance with the requirements of the contract documents. Copies of
all records will be made and transferred to the Contractor Office where they will be retained for the guarantee period of the contract.

 Approved MRIs / RFIs

 IFC
 Approved Material Receiving RFI

11.0 TRAINING

Training will be providing as per training and project schedule.

 HSE Induction and General Safety Awareness Training

 Heat Stress / Cold Stress Awareness Training
 PTW (Permit to Work) Procedure Training
 Lifting and rigging activities at Store / Site.
 Quality Induction Training
 First Aid Training

Doc No. 7200040907-JWWF-GC-000 Rev 00 P.O. # 7200040907