Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
Name of Project – Construction of RPW Warehousing
Boundary Wall at Nandagudi.
Bangalore.
Documents No. – PISL/RPW/WMS/004
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
METHOD STATEMENT FOR REINFORCEMENT
WORK
CONTENTS
Sr. No. TITLE PAGE
NO.
1 INTRODUCTION 3
2 SCOPE OF WORK 3
3 REFERENCES AND STANDARD 3
4 WORK PROGRAMME 3
5 ROLES & RESPONSIBILITIES 3
6 MATERIAL 3
7 RESOURCES – PLANT & EQUIPMENTS 4
8 METHODOLOGY 5
8.1 STORAGE & HANDLING 5
8.2 BAR BENDING SCHEDULE 5
8.3 CUTTING BENDING & PLACING 5-6
8.4 SPACING OF REINFORCEMENT 6
8.5 LAPS OF REINFORCEMENT 6-7
9 QUALITY ASSURANCE 7
10 GENERAL SAFETY CONSIDERATION 7
11 CHECKLISTS 8
Rev. Document Status Prepared By Reviewed By Approved By
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
1. INTRODUCTION:
This Method Statement describes the outline procedure to be followed for cutting, bending and lying of
reinforcement and inspection of works to be executed at Proposed RPW Warehousing Boundary Wall at
Nandagudi, Bangalore.
2. SCOPE OF WORK:
The scope of work involves the following:
Providing & fixing reinforcement for RCC work with approved material & as per the GFC drawing
3. REFERENCES AND STANDARD:
This document should be read in conjunction with technical specification and latest GFC Drawings.
1.Tender Documents
2.Project specification
3.DBR
4.GFC Drawing
5.IS Codes
IS 456/2000, IS 4990-2011, IS 3696(Part I & II)-1987, 14687-1999.
4. WORK PROGRAMME:
The Reinforcement work shall be carried out in accordance with the submitted program to RPW
Warehousing Private Limited/PMC.
5. ROLES & RESPONSIBILITIES:
Frontline responsibility – Site Engineer / Construction Manager
Safety Supervision – Safety supervisor / Officer
Quality inspection – QA QC Engineer / Manager
Overall responsibility – Site in charge / Project Manager
6. MATERIAL:
Material used for Reinforcement Work is:
Reinforcement shall be high deformed bars as per IS: 1786. Reinforcement of less than 6 mm rods
shall be plain steel grade I as per IS: 415. Wire mesh shall be in accordance with IS: 1566.
Binding wire for fixing reinforcement shall be annealed wire of gauge 16/18 cross binding is required.
Rebar material shall be as per specification.
Manufacture Test Certificate will be provided at the time of inspection & 3rd party test as per MTP.
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
Concrete or PVC Cover Blocks
7. Resources – Plant & equipment’s
Surveying equipment’s
1. Total station
2. Auto level / Dumpy level
Material
1. Bar cutting & Bending Machine with required Mandrels.
2. Equipment’s for lifting & shifting of reinforcement steel
3. Mobile crane
4. Lifting cables & cable fitting
5. Storage planks
6. Approved Cover Blocks
Tools & Tackles
1. Pick-Axe
2. Spade
3. Hammer
4. Chisel
5. Steel pegs
6. Wrenches
7. Pry bars
8. Nails
9. Binding wire
10. Sponge
11. Brushes
Personal Protective Equipment’s
1. Gloves
2. Goggles
3. Ear Plug
4. Helmets
5. Ladder
6. Safety Footwear
7. Shields
8. Eye Protection
9. Safety net
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
8. METHODOLOGY:
8.1STORAGE & HANDLING:
1. All reinforcement shall be placed above the ground by using wooden sleepers or concrete
blocks.
2. Care shall be taken to cover the reinforcement to prevent determination due to environment.
3. Covered with tarpaulin sheet.
4. Reinforcement shall be stacked diameter wise for easy retrieval for work.
5. Unusable cut rods and scrap reinforcement shall be properly stacked at yard only.
8.2BARBENDING SCHEDULE:
1 Prepare bar bending schedule based on the latest GFC drawings and to be submitted to of PMC
/Client for review before commencing the work / approve.
2 Bar bending schedule shall clearly specify the following:
a) Bar diameter
b) Numbers
c) Cut-lengths
d) Shapes
e) Location
f) Grid no
g) Bend deduction as per IS2502.
8.3 CUTTING, BENDING & PLACING:
1. All reinforcement shall be free from cracks, coats of paints, oil, mud or any other substances
which may destroy or reduce bond. Use wire brush to clean the reinforcement if required.
2. All the bars should be bent according to the sizes and shapes shown in the detailed working
drawing.
3. Reinforcement shall be bent gradually by machine or other approved means.
4. Reinforcement shall be bent cold except bars of over 25mm in diameter which may be bent
hot.
5. Bars bent shall not be heated beyond carry red color after bending shall be allowed to cool
slowly without quenching.
6. Place the reinforcement as per GFC drawings ensuring the following aspects properly,
a. Type & size of bar.
b. Number of bars.
c. Location and lengths of laps, splices.
d. Curtailment of bars.
e. In two-way reinforcement, check the direction of reinforcement in various
layers.
f. Adequate number of chairs, spacer and cover blocks.
g. Size of cover blocks.
h. All the bars shall be tied with annealed wire.
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
7. Reinforcement may be placed with in the following tolerance whenever required:
a. For effective depth 200mm or less ±10mm.
b. For effective depth more than 200mm ±15mm.
c. The cover should suit various cover requirement as per drawing notes.
8. Where reinforcement bars are bent aside at construction joints and afterwards bend back
into their original position, care should be taken to ensure that at no time the radius of the bend
is less than 4 times the dia. of bar for MS and 6 times the dia. for HYSD bars.
9. Welding, if required, shall be done as per IS: 9417.
10. Welder Qualification is to be done if required.
11. For Welded Lap the type of weld, length of weld, welding procedure, Selection of Material &
Equipment will be done as per (ALL) Specifications or IS 9417 & IS 2751 respectively.
12. The sequence of reinforcement shall be correlated with fixing of inserts, sleeves, conduits,
anchors and formworks.
13. In walls, place accurately bent spacer bars wired to vertical or horizontal bars between
successive rows.
14. Cover blocks made from cement, sand and small aggregate shall match the mix proportion of
the surrounding concrete. Alternatively, PVC cover blocks can be used. Spacers, cover blocks
should be of concrete of same/higher strength or PVC.
15. Cover, chairs and other supports detailed on drawings, together with such other supports as
may be necessary, should be used to maintain the specified nominal cover to the steel
reinforcement.
16. Cover’s or chairs should be placed at a maximum spacing of 1.0 mtr.
17. All reinforcement shall be placed and maintained in the positions shown in the drawing by
providing proper cover blocks, spacers, supporting bars.
18. When specified diameter of reinforcement is not available, it may be allowed to replace such
diameters with available diameters calculated to provide the equivalent steel area as shown on
the drawings and such alterations shall be carried out only after obtaining the written approval
of Client/PMC.
8.4 SPACING OF REINFORCEMENT:
Minimum distance between two parallel main reinforcement bars shall usually be not less than
the greatest of the following:
Horizontal distance: i) bar diameter (of larger bar if unequal diameters are used)
ii) 5 mm. More than nominal size of coarse aggregate
Vertical distance: i) two thirds the nominal size of coarse aggregate
ii) maximum bar size
iii) 15 mm
8.5 LAPS OF REINFORCEMENT:
Where laps and joints are provided in reinforcing bars, they shall be staggered and the following
requirements should generally be satisfied:
a) The Splice & lap length shall be as per the GFC drawings or as per IS 456-2000.
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
b) When bars of different diameter of bar are spliced, the lap length shall be calculated
considering the dia. of smaller dia. bar.
c) At any particular point more than 50% of lapping is not allowed.
d) Lapping should be provided at a point of contra flexure.
9. QUALITY ASSURANCE:
a. All the activities shall be in compliance with approved quality plan.
b. Inspection test report shall be generated prior to commencement of the activity; any short
fall shall be attended at earliest.
c. Carrying out of reinforcement work shall be in accordance with the check list.
10. GENERAL SAFETY CONSIDERATIONS:
The following safety precautions shall be followed during construction.
a. All the workers shall wear proper personal protective equipment.
b. All the workers & staff personals shall be trained well in works to be executed at height &
precautionary & corrective measures to be taken for the same.
c. All the workers shall be trained and safety induction shall be imparted to them before the
commencement of work at site.
d. Safety tool box talk shall be carried out for mutual understanding of work.
e. Regular or daily check of equipment prior to use shall be carried out.
f. A competent site supervisor shall be present at all times during work.
g. Emergency call numbers shall be posted on site for contact in emergency
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Construction of RPW Warehousing Boundary Wall at Nandagudi, Bangalore
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