b-1 tender form - Maharashtra Industrial Development Corporation

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34.6 Mode of Measurement and Payment : The measurements of the collapsible steel door (shutter)
shall be considered for the door provided & fixed in position as per dimensions mentioned in the
detailed drawings. The contract rate shall be per square metre of collapsible door fixed on position.
Item No 16 2 Providing, transporting, cutting, fabricating, welding, hosting and erecting in position
welded or bolted structural steel work with tubular sections using ERW tubes of various diameters
erecting using devices like derricks, cranes or any other suitable guys etc. and final bolting, welding,
testing as may be required including two coats of red oxide zinc crome paint of approved colour and
shade. All materials and labours complete.
2.1 General : The item covers the specifications of fabrication and erection of structural steel work
including painting. The structural steel work includes, cutting, fabrication, welding, or bolting, erecting
the structure, painting etc. for various items such as columns, trusses, portals, girders, gantry,
bracings etc.
2.2 Material : This shall comply with specification No.GENERAL SCOPE & MATERIAL- Gen/C/0 and
Gen/C/0.2.5, Gen/C/0.19.2.
2.3 Fabrication and Erection : Cutting, welding, assembly, machining, painting, marking and erection
shall be carried out in accordance with approved plans and as directed by the Engineer-in-Charge
from time to time and shall comply with IS 800 and detailed below.
2.4 Damaged Members :
1. Any material found damaged or defective shall be stacked separately and shall be marked in a
distinctive colour. Such material is to be dealt with expeditiously under the orders of the Engineer-in-
Charge.
2. Welding shall be done, as per specifications.
3. All permanent machine-fitted or other bolts must be perfectly tight and should be burred or
otherwise checked, to prevent nuts form becoming loose.
4. Care shall be taken to see that cracks are not filled with paint, putty, cinders, dirt, oil or fillings.
5. Particular care must be taken to ensure free expansion and contraction wherever provided for in
drawings or as the Engineer-in-Charge directs.
2.5 Shop Drawings : The contractor shall prepare shop drawings for the structural steel work/ERW
tubes to be executed as per IS: 800. The contractor shall submit the drawings in triplicate to the
Engineer-in- Charge for his approval. Fabrication shall not be taken in hand until the relevant shop
drawings have been approved by the Engineer-in-Charge. However, the contractor shall remain
wholly responsible for their correct conformation the designs and for accurate fabrication to meet the
requirements of design and the Indian Standard. One copy of the drawings duly approved shall be
returned to contractor and the work shall be carried out according to the approved design.
2.6 Laying Out : As far as possible and whenever necessary, structural parts, ERW Tubes their joints,
gusset plates, etc. shall be drawn out to full size on a level platform, a steel tape being used for
measurement. All angles shall be carefully set out and checked. Gusset plates shall be marked with
as few sides as possible and of such shapes that there is a minimum waste in cutting a large number.
Steel metal templates of adequate dimensions shall be made to correspond to each member and
temperature effect shall be taken into account where necessary.
2.7 Fabrication and Welding : When the lengths of sections required for fabrication are not more than
the standard lengths of rolling, no splicing of shorter length shall be allowed to be fabricated. Unless
provided in the designs or specially permitted in writing by the Engineer-in-Charge.
All the rolled sections forming part of the structural member shall be cut square or accurately to
shapes shown in the detailed drawings dead correct to lengths and shapes, a steel tape being used
for measurement. The cut ends shall be dressed true with hammer, chisel and file or by grinding.
Contractor.
Executive Engineer(E&M).