G-3.1 General
- a) Site plans showing in plan and elevation of
the proposed location and main dimension of the building or structure;
- b) Ground levels, existing and proposed;
- c) Particulars of buildings or other constructions which may have to remain on the actual site of the new building or structure during the erection of the steelwork;
- d) Particulars of adjacent buildings affecting, or affected by, the new work;
- e) Stipulation regarding the erection sequence or time schedule;
- f) Conditions affecting the position or continuity of members;
- g) Limits of length and weight of steel member in transit and erection;
- h) Drawings of the substructure, proposed or existing, showing:
- levels of stanchion foundations, if already determined;
- any details affecting the stanchion bases or anchor bolts;
- permissible bearing pressure on the foundation; and
- provisions for grouting.
NOTE — In the case of new work, the substructure should be designed in accordance with the relevant standards dealing with foundations and substructure.
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j) The maximum wind velocity appropriate to the site (see IS 875); and
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k) Environmental factors, such as proximity to sea coast, and corrosive atmosphere. Reference to bye-laws and regulations affecting the steelwork design and construction.
G-3.2 Further Information Relating to Buildings
- a) Plans of the floors and roof with principal dimensions, elevations and cross-sections showing heights between floor levels.
- b) The occupancy of the floors and the position of any special loads should be given.
- c) The building drawings, which should be fully dimensioned, should preferably be to the scale of 1 to 100 and should show all stairs, fire- escapes, lifts, etc, suspended ceilings, flues and ducts for heating and ventilating. Doors and windows should be shown, as the openings may be taken into account in the computations of dead load.
Requirements should be given in respect of any maximum depth of beams or minimum head room.
Large-scale details should be given of any special features affecting the steelwork.
- d) The inclusive weight per m² of walls, floors, roofs, suspended ceilings, stairs and partitions, or particulars of their construction and finish for the computation of dead load. The plans should indicate the floors, which are to be designed to carry partitions. Where the layout of partitions is not known, or a given layout is liable to alteration, these facts should be specially noted so that allowance may be made for partitions in any position (see IS 875).
- e) The superimposed loads on the floors appropriate to the occupancy, as given in IS 875 or as otherwise required.
- f) Details of special loads from cranes, runways tips, lifts, bunkers, tanks, plant and equipment
- g) The grade of fire resistance appropriate to the occupancy as may be required.