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Volume-IF - JantERmantER

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DCPL-K4A02<br />

The sequence of submission of shop drawings for approval shall match with<br />

the approved fabrication and delivery schedule. The approval for the shop<br />

drawings will be accorded only towards the general conformity with the<br />

design requirements as well as specification and will ensure the correctness<br />

of general arrangement for centreline dimensions and levels, Section<br />

sizes, and adequacy of connections including splice joints as to the no. of<br />

bolts, weld length, size of gusset/end plates.<br />

The correctness of all other details like cutting lengths, matching of holes,<br />

notch dimensions, match markings, bill of materials, bolt list etc. will be<br />

entirely the contractor's responsibility. The approval of the drawing however<br />

shall not relieve the contractor of his sole responsibility in carrying out the<br />

work correctly and fulfilling the complete requirements of contract<br />

documents.<br />

The shop drawings shall include but not be limited to the following : -<br />

a) Assembly drawings giving exact sizes of the sections to be used and<br />

identification marks of the various sections.<br />

b) Dimensional drawings of base plates, foundation bolt location etc.<br />

c) Details of all connections with supporting calculations.<br />

d) Comparison sheets to show that the proposed alternative section, if<br />

any, are as strong as the original sections shown on the Design<br />

Drawings.<br />

e) Complete Bill of Materials and detailed drawings of all sections as<br />

also their billing weights.<br />

f) Any other drawings or calculations that may be required for the<br />

clarification of the works or substituted parts thereof.<br />

The shop drawings shall give all the necessary information for the<br />

fabrication, erection and painting of the steelwork in accordance with the<br />

provisions of this Specification. Shop drawings shall be made in<br />

accordance with the best modern practice and with due regard to<br />

sequence, speed and economy in fabrication and erection. Shop drawings<br />

shall give complete information necessary for fabrication of various<br />

components of the steelwork, including the location, type, size and extent of<br />

welds. These shall also clearly distinguish between shop and field bolts and<br />

welds and specify the class of bolts and nuts. The drawings shall be drawn<br />

to a scale large enough to convey all the necessary information adequately.<br />

Notes on the shop drawings shall indicate those joints or groups of joints in<br />

which it is particularly important that the welding sequence and technique<br />

of welding shall be carefully controlled to minimize the locked -up stresses<br />

and distortion.<br />

Welding symbols used shall be in accordance with the requirements<br />

of the Indian Standard Specification --IS:813 - Scheme of symbols for<br />

Welding, and shall be consistent throughout. Weld lengths called for on<br />

the drawings shall mean the net effective length.<br />

(PCA.774.S034sca4) V.II-D2/S-IV : 10

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