JSW SEVERFIELD STRUCTURES LIMITED

SUBMITTAL
Project Name C216 – KWT, Pimpri No. JSSL/C216/ESM/001
M/s. Kohinoor Development
Client / Customer Date 14-08-2024

ERECTION METHODOLGY

Issued for Approval

Revision Revision
Date Revision Description Author Owner
No

Comments if any:

Prepared By Reviewed By Reviewed by Approved by

(JSSL) (JSSL)

Signature

Name Mahesh Kamath

Date 14/08/24
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JSW Severfield Structures Limited KWT - Pimpri

PROJECT TITLE

PROJECT CODE C-216

PROJECT CONSULTANT M/s Strudcom Consultants Pvt Ltd

PROJECT CLIENT M/s Kohinoor Group

PROJECT GENERAL CONTRACTOR M/s Rohan Builders

STRUCTURE DETAIL Commercial Tower

STEEL SCOPE 5500MT (approx.)

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JSW Severfield Structures Limited KWT - Pimpri

Contents

1. Introduction

2. Reference Documents

3. Process Flow Chart

4. Site Mobilization Plan

5. Roles & Responsibilities

6. Site Pre-Commencement

7. Structural Steel Erection Works

8. Erection Techniques and Methodology

9. Safety

10. Survey

11. Bolting

12. Decking

13. Inspection

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JSW Severfield Structures Limited KWT - Pimpri

1.0 Introduction

The purpose of this Work Method Statement is to define the working procedure, which JSW Severfield Structures
Limited (JSSL) will implement in the “KWT - Pimpri” Project in accordance with the Contract conditions, Project
specification and National Structural Steel work specification.

It is a floor and roof Composite structure with metal decking designed to construct as per client drawings Our scope
of works comprises of Structural Steel Connection Design, Shop drawing detailing, Material Procurement,
Fabrication, Transportation and Erection, Survey and alignment, Bolting, Shear angles, Laying Decking sheet, and
Welding shear studs. Scope also includes supply of Insert plates, etc. at required heights as per the drawings.

The Total structure has been splitted into manageable phases to suit the Erection sequence and for the ease of Shop
drawing detailing, Fabrication & Erection activities. All the quadrants will be erected by connecting with core walls
by floor beams which ties at each level Since stability of structure is achieved by core wall system in analysis, tying
up beam framing system with core wall during erection will provide lateral stability to erected structural system.

2.0 Reference Documents

Client needs to provide all the Structural Inputs & Specifications while awarding the contract and works shall be
commenced based on that.

• Project Specifications
• Structural Drawings

Reference codes & standards,

• National Structural Steel work Specification (NSSS)

• American Welding Society (AWS D1.1)
• Steel Structures Painting Council (SSPC)

This Work Method Statement document must be read in conjunction with the following other Submissions

• Site EHS Plan

• Project Quality Plan
• Inspection & Testing Plan

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3.0 Process Flow Chart

AWARD OF CONTRACT & RECEIPT OF INPUT

DESGIN, STRUCTURAL COORDINATION & 3D MODELLING

PREPERATION OF SHOP DRAWING MTO & STEEL ORDER

RECEIPT OF RAW
SHOP DRAWING APPROVAL MATERIAL

FABRICATION

QC INSPECTION

STEEL ERECTION

SURVEY ALIGNMENT & BOLTING

DECKING & SHEAR STUD

WELDING

FINAL AREA HANDING OVER

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4.0 Site Mobilization Plan

4.0 Access by client

This ‘Site Mobilization plan’ prepared according to the site access dates to be provided by the client based on
approved ‘Baseline Schedule’

• Access to Site office & Store area - Client Scope

□ Access to Construction Site - Client Scope
□ Handing over of Lay down Area - Client Scope

 All the above areas should have a hard standing ground with necessary road access for free
movements of construction vehicles and erection plants & equipment while handing over.

 Crane parking locations shall be over the proposed construction road around the building and all
location of lay down area should be near to the crane parking locations. This will be required in some
cases for assembly of the floor beams.

 Space for Office & Store container to be allocated in the same place near to site.

 All the temporary support pedestals must be casted with anchor bolts as per provided drawings. The top of
Temporary Pedestals must be clear of debris and obstructions, and all holding down bolts must be
undamaged allowing for free run of the bolt nut. The working area must be always free from any kind of
obstructions.

 Necessary lighting arrangements to be to be provided by the client for us to enable the work
during night time also.

 Construction Power extension points shall be provided by the client at required locations at site.

The site will also be assessed for access and hard standing which must be in accordance with the JSSL method
statement and conditions of tender. Any discrepancies will be notified to the Client and Project Manager.

Our below committed dates in this Mobilization plan are subjected to the above access dates and delay in
providing the same shall reflect in our commitment dates.

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4.2 Site office arrangement:

20 Feet long x 8 Feet wide Air Conditioned Porta-Cabin is planned to use as a site office space. It is built-up
with 5 work stations with necessary arrangement for storing documents & drawings. It is preinstalled with
required lightening & fan arrangements etc.

Client needs to provide single point power source in the provided site office area for functioning the site office.
The above items and quantities are tentative and it is subjected to change based actual requirement at site.

Mobilization plan for the Site office shall be as follows,

Sl. No Item Qty Planned Date Remark

1 Portable-Cabin with Work station 1
2 Store and Tools Cabin 1

3 Computer As required

4 A4&A3 - Printer & Copier 1

machine

4.3 Site Store arrangement

20 Feet long x 8 Feet wide Steel container shall be the site store arrangement and it shall be delivered
with the following Tools & Tackles,

Sl. No. Item Qty Planned Date Remark

1 PPE As required
2 Welding Machines 8

3 Magnetic Drilling machine 9

4 Mother Oven 2
5 Gas Cutting Set 6

6 Grinding Machine 16

7 Pistol drilling machine 4

8 Hammer – 4lb,8lb As required

9 Self tapping Screw Machine 12

10 Chain slings – 7.5 MT 6
11 Chain slings – 4.5 MT 6
12 Chain puller – 3 MT 12

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13 3.5T Bow shackle As required

14 Chain puller – 5 MT 8 8

15 6.5T Bow shackle As required

16 9 T Bow shackle As required

17 12T D shackle As required

18 3T Web sling 12 12

19 6T Web sling 16 16

20 10T Web sling 16 16

21 16T Web sling 16 16

22 Spanners (Various sizes) As required

23 Podgers (Various sizes) As required

24 Lifting brackets (Various sizes) As required

25 Tools bags set As required

26 Power cables As required

27 Misc. Tools & Tackles As required

28 Drift Pins As required

The above given items & quantities are tentative and shall be increased or decreased based on site requirements.
Apart from Store container space, client needs to provide another 100 Sqm of Hard stand ground for us to make
temporary shed for site storage. Client needs to provide single point power source for Store area.

4.4 Major Plants & Equipment

The following Major Plants & Equipment’s are considered in the Mobilization,

Sl. No Item Qty Planned Remark

Date
1 Tele handler / F15 Farana (For Unloading)
2

2 Mobile Crane 0

3 Tower Crane 3

4 Cherry Picker / Manlift 6

5 Impact Gun / Tone gun 8

6 Torque wrench 2

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4.5 Manpower Mobilization

The material off-loading crew will be in visit to the site during the delivery of Office & Store
containers and gradually the following site team shall be mobilized,

On receipt of an order by JSSL, the Head of construction will appoint the Site In-charge & allocate the required
resources.

5.0 Roles & Responsibilities

Each area of the company has primary overall responsibility for the quality of work it actually performs. Within
each area, the responsibility for quality rests initially with that areas management, but also with the individuals
actually performing the work.

5.1 Managing Director

Has overall responsibility for all the activities of the company.

5.2 Head of Contracts / Projects

Responsible for all activities related to Project management & Contracts.

5.3 Head of Construction

Has overall responsibility for all site related activities in the company.

5.4 Project Manager

The Project manager is reporting to the Head of Projects / Contracts. The Project manager has the over
responsibility to successfully complete the assigned project within the agreed time period and allocated budget.
He will closely coordinate with the client and will act as a central source of liaison between the client and other
inter departments from award of Project through to completion.

5.5 Site In-charge

Has overall responsibility for entire site activities. Site will function under his control and all Site staffs & work
men are reporting to him. He will liaison with Client and Project Manager and also will regularly attend Site
Progress Meetings. He will execute the site based on the client requirements and as per the approved Work
Method Statement. The Site In-charge will plan and allocate the labours and plants suitably at site to achieve
the set progress within the stipulated time frame.

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His duty includes Handing over the completed area and receiving signed verification of same. Keeping site
records and submitting documentation to relevant parties and maintaining registers where appropriate to ensure
contract and company issue is maintained. Site documentation will be in accordance with the Site File Index.

5.6 Site Manager

Reporting to Site In-charge and responsible to complete the Site works in a Safe Manner within the allocated
time period.

5.7 Manpower details:

Sl. No Manpower Qty Planned Date Remark

1 Engineer

2 Supervisor

3 Foreman
Chargehand
4
5 Erector / Helper / Welder

6 Surveyor

7 Safety

6 Site Pre-Commencement

6.0 Concrete Base and Holding down Bolt Survey

During the installation of Anchor bolts by Main Contractor, a survey will be carried out & recorded in the
survey book or on the base plan drawing and any deviations from the issued drawings will be reported to the
client by means of a Rectification Notice. Remedial action should be carried out by client to correct any
deviation(s). Templates along with Anchor bolts will be shipped to site. The Anchor bolts will be laid down as
per JSSL Anchor bolt GA drawing.

The templates will be used for erecting the Anchor bolts and surveyed as per drawing for the co- ordinates and
location. Once the concrete is poured through the pour hole the templates can be removed and shifted to next
column location.

The Anchor bolts has to be tapped for protection and a box to be placed for vehicles to be diverted from running
over it.

For stability all anchors will be gripped by Templates, Wires tied to Re-bar and sometimes a tack weld with
bearing plate.

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After completion of concrete pouring post protocol will be raise and will be jointly checked by client and JSSL
surveyor and the deviation will be noted and cleared from both ends. Any major deviation recorded will have to be
discussed with the design team to appropriate rectification methods and proceed further with the erection works.

Further to completion of joint survey inspection the pedestals will be arranged for erection works and packing plates
will be provided as per the dwg.

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7 .0 Structural Steel Erection Works

7.1 Material Storage

All the structural steel members shall be fabricated and delivered to site according to the shop drawings and
it will be unloaded over the proper hard standing Material Storage Area provided by client. Wooden packers
shall be used to avoid the steel resting directly on ground. In the likely event of heavy rain JSSL take no
responsibility for steel tarnished by mud from ground that has not received GSB. Typically, the steel sections
will be place on approx. 200mm packers off the ground, then 100mm for further stacking. No stacking shall be
higher than 1m. Material offloading and shifting sometimes by use of Tele hander

7.2 Structural Steel Erection

1. Prior to any works commencing on site the client must confirm the site is safe and fit for erection
works to commence.
2. The erection will be carried out by JSSL site personnel and will be supervised on site by our Erection
Foreman with regular inspections by our Construction and Project Managers and Site Safety Advisor.
3. After foundation clearance from civil columns will shifted to the respective location.
4. Column erection will happen as per the methodology given in 8.0
5. Where possible all steel members will be supplied pre-drilled for the use of bolt on lifting brackets. This
allows for the use of a single leg sling which gives much better freedom of movement whilst lifting steel
beams as per the methodology given in 8.0.
6. Once column and beam erection completed survey will be carried out and after bolting tightening will
happen
7. After handover of floors deck work will commence as per methodology given in 8.0
8. Manpower numbers will be adjusted if necessary to comply with the program.
9. Steel packing shims approximately 100mm square will be provided on the foundation and leveled to
underside of base plate level, within the allowable contract specification tolerances, prior to erection of
stanchions.
10. All plant and equipment to be operated by competent personnel.
11. Access the structure local to the work point using Dover Clamps, double lanyard safety and full body
harness. See Site EHS Plan for details.
12. A man Riding Basket suspended from the Crane will be used when necessary to access
otherwise inaccessible connections if required.
13. All site connections will be bolted out, and tightened with impact wrenches as erection progresses.
14. Plumbing and lining of the structure will be carried out immediately following erection and will be complete
before hand-over. Completed levels will be offered for hand over on our standard Site Acceptance Form
which will be signed by our site-in-charge. This form is to be countersigned by The Main Contractor upon
acceptance of hand over and this acceptance should be complete before following trades utilize the area.
15. After completion of alignment & bolting and clearance given from the client we will proceed with decking
works. Initially life lines will be installed and when its completely secured decking bundles will be placed
on the floor beams. Then the spreading of the sheets will be begin with nailing. This activity will be
completed with the welding of studs & installation of edge trims and will be offered for final inspection for
concreting.
16. Any Damages to the structure after hand-over will not be JSSL responsibility.
17. Should following trades move into the area prior to formal acceptance it shall be deemed this area has
been accepted and any damage will not be our responsibility.

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8.0 Erection Techniques and Methodology

8.1 Standard Lifting of steelwork & Lifting provisions:

Where possible all steel members will be supplied pre-drilled for the use of bolt on lifting brackets. This
allows for the use of a single leg sling which gives much better freedom of movement whilst lifting steel
beams.

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8.2 Typical setup for lifting column with bracket bolted to the cap plate / Dawson shackle.

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8.3 If pre-drilled holes are not provided double leg slings must be used and in a manner that they
cannot slip: e.g. chocked or through service holes.

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8.4 Chandelier Lifts

Chandelier lifting is the lifting of 2 vertically-separated beams, using special lifting chains. It can be used to lift
2 beams to be erected close to one another in most steel framed building, using a Mobile / Tower Crane. The
method reduces the total number of lifts on a project, thus reducing the risks associated with lifting operations.

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8.5 Lifting of tubular steel bracing using a double wrapped webbed sling, it may be beneficial to
lift off centre to aid fitment or use double sling and tag lines two both ends as per the
fitment to structure.

When lifting hot rolled steel sections which are set at an angle, the sling must be double wrapped.
Use chains with closed hooks and a piece of timber placed to the underside of the member. The
timber will ensure that the slings do not slip due to strong grip over it.

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9. Safety
Before erection can commence adequate working areas and safety zones must be created and
high levels, different trades working in close proximity to each other, heavy/long/high lifting operations etc.
Sufficient working area (albeit kept to a minimum) must be available for the material handling area, assembly
and erection of the structural elements and all associated plant and equipment. Furthermore, adequate safety
zones must be maintained beyond the work activity to safeguard against potential risks. Close co-ordination and
planning will be essential for all parties involved.

10. Survey

The Datum Control points and Benchmarks shall be provided by the Main Contractor to start the survey works.
Total Station and Auto Level are the instruments shall be used for the entire survey works. Total Station
instrument shall be used for all surveying works & all the verticality alignment etc. by using Three-dimensional
co-ordinate system. The Auto level instrument shall be used for theleveling works to support the Total station
if required. After Survey of Embed plates, Fin plates to becut as per site requirement and any modification of
beams with approval from client. Column and beam levels are checked with respect to approved GFC

11. Bolting
Bolts are stored in an adequate place or store where the rain, water, dust etc. are not adhered. Those shall be
protected by stored in the wooden pallet & covered by polythene sheet. Identificationshall be marked on the
pallet by Grade, size, length & qty. Bolts shall be prudently handled and attention will be taken not to damage
the threads. Any abuse of the bolts during handling or installation will be prevented. Bolts having rust, dirt and
bolts with damaged thread will not be used.

• Bring the members to be joined together and align the holes with drift pins as shown in thesketch.
• Fill the remaining appropriate holes with Bolts, Nuts & washers.
• Again work from the most rigid part of the connection towards the edges & leave the drift induring
this operation.
• Knock out the remaining drift pins replacing them with bolts and tightened.
• After bolt tightening “X” mark will be written on all the tightened bolts to identify easily.
• Grade 8.8 Bolts with Flat Washer and Hex Nut Bolts shall be tightened by spanners or electric impact
wrench.
• All these projects bolts are 8.8 grades thus snug tight is enough.

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Torqueing

Bolting
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12.0 Decking

• Bundle packaging and strapping shall not be used for hoisting unless specifically designed for that
purpose.
• If loose items such as flashing, or other materials are placed on the top of metal decking bundles to be
hoisted, such items shall be secured to the bundles.
• Metal decking bundles shall be landed on framing members so that enough support is provided to
allow the bundles to be un-banded without dislodging the bundles from the supports.
• At the end of the shift or when environmental or jobsite conditions require, metal decking shall be
secured against displacement.
• Framed metal deck openings shall have structural members turned down to allow continuous deck
installation except where not allowed by structural design constraints or constructability.
• Roof and floor holes and openings shall be decked over. Where large size, configuration or other
structural design does not allow openings to be decked over (such as elevator shafts, stair wells, etc.)
employees shall be protected.
• Metal decking holes and openings shall not be cut until immediately prior to being permanently filled
with the equipment or structure needed or intended to fulfill its specific use and which meets the
strength requirements of this section or shall be immediately covered.
• Covers for roof and floor openings shall be capable of supporting, without failure, twice the weight of
the employees, equipment and materials that may be imposed on the cover at any one time.
• All covers shall be secured when installed to prevent accidental displacement by the wind,
equipment, or employees.
• All covers shall be painted with high-visibility paint or shall be marked with the word "HOLE" or
"COVER" to provide warning of the hazard.
• Smoke dome or skylight fixtures that have been installed, are not considered covers for the purpose
of this section unless they meet the strength requirements of this section.
• Decking gaps around columns. Wire mesh, exterior plywood, or equivalent, shall be installed around
columns where planks or metal decking do not fit tightly. The materials used must be of sufficient
strength to provide fall protection for personnel and prevent objects from falling through.
• Metal decking shall be laid tightly and immediately secured upon placement to prevent accidental
movement or displacement.
• During initial placement, metal decking panels shall be placed to ensure full support by structural
members.
• Ensure decking bundles cannot be opened where all the sheets cannot be fixed or left in a safe
condition at the end of the shift. No loose material shall be kept on the edges.
• During heavy rain or high wind decking installation shall not commence.
• Make sure to use inspected power tools and safety devices are in working condition during cutting of
sheet with cutting/grinding machine.
• Ensure the barricading has been provided with caution signage below the area. The stud welding
machine shall be securely kept during stud welding work the welding cable shall be securely kept
preventing trip hazard.
• Provide fire watchers with fire extinguishers below the stud welding area. Fire extinguishers are also
needed to keep on the floor where the welding work is going on.
• The area immediately below the stud welding work should be demarcated as an exclusion zone. Use
fire blankets wherever required. Make the area free from combustible material before starting the
work.
• No work will be allowed on down, if any work is going above the work ground and vice versa
• Ensure all the PPE have been provided to the welder to carry out stud welding work.
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12.1 Storage

Material shall be stored at designated area only.

12.2 Post Operation

Defects and Reporting

When defects are highlighted which particularly relate directly to the safety of Lifting gears, material it is
the responsibility of the welder to report defects. Therefore, the following procedure must be applied:

 Defects must be reported to a supervisor who must inform the Maintenance Department for further
action.
 Discussions between site Manager and Maintenance should follow to determine whether sufficient
repair or modification has been done to ensure that the defective item is now safe and protected from
being used accidentally.

13.0 Inspection

On completion of a specific phase of erection the Survey Engineer shall survey the structure for plumb, line and level.
Steelwork that is out of tolerance according to the method statement requirements and the NSSS shall be brought into
tolerance. Upon completion of the survey and all measures required to bring the structure into compliance, quality
engineer will carry out inspection, survey reports will be issued and presented to Client for acceptance and signing.

All site welding shall be carried out as per approved WPS prepared based on AWS D1.1. Only qualified welders shall
perform welding activity. 100% weld visual inspection shall be carried out and acceptance criteria shall be AWS D1.1
table 6.1... 10% DPT and 100% visual inspection shall be carried out as per approved ITP. Inspection of edge
preparation, groove fillet welds checks and wherever pre/post welds heat treatment required need to carried out as per
AWS D1.1.

Decking laying shall be carried out as per deck sheet layout. Stud welding shall be carried out as per approved WPS.
Before production welding with a particular set up and with a given set up and type of stud and at the beginning of
each day, testing shall be performed on the first two studs that are welded.

The test studs shall be visually examined. They shall exhibit full 360° flash with no evidence of undercut into the stud
base. In addition to visual examination, the test shall consist of bending the studs after they are allowed to cool, to an
angle of app. 30° from their original axes by either striking the studs with a hammer on the un-welded end or placing
a pipe or other suitable hollow device over the stud and manually or mechanically bending the stud. Acceptance
criteria shall be as per AWS D1.1

Paint touch up shall be carried out as per paint manufactures recommendation and required DFT shall bechecked using
calibrated gauge. Final Hand over upon completion of the entire inspection activityarea/final handover certificate shall
be prepared and issued to Client for acceptance and signing.

Upon completion of the project manufacture data report shall be prepared including inspection and NDT reports.

Erection Methodology JSSL-C216-SML-001