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Clause no. 3.1.2.2 of draft IS:800

 
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roark.sol1
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PostPosted: Wed Oct 08, 2003 11:12 am    Post subject: Clause no. 3.1.2.2 of draft IS:800 Reply with quote

Dear Subhamoy,

The case of choice between the WSM & LSM in reference to AISC & API is not
relevant to the draft IS:800. As in AISC the total amount of documentation
for both the methods is on almost equal footing, while in the draft IS:800,
WSM covers only 4 pages. This fact in itself implies that WSM is a
step-brother, and should be avoided almost in all cases.

So in fact draft IS:800 vocally advocates (without actually saying so) that
only LSM should be followed, and in case some young & inexperienced engineer
(who cannot understand the complex issues) is designing some small &
irrelevant structure, he may use WSM as a rough guidline or a thumbrule. I
am tempted to cite the example of the moments & shear coefficients given in
clause 22.5 in IS:456 for continuous beams which starts with the phrase "
Unless more exact estimates are made ....". Now no engineer uses these, and
if someone uses these coefficients, he will be challanged left & right by
everyone. I feel that same is the case for WSM in the draft IS:800.

Regards

Pankaj

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