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Posted: Thu Sep 23, 2004 8:54 am Post subject: Suggestion to comment (2) of R.K.Desai
Suggestion to comment (2) of R.K.Desai
2) Clause 6.3.3 stipulates that the values of Mu, Mu, Mu and Mu are to be calculated as per IS:456-2000. ANNEX G of IS:456-2000 is useful for design of doubly reinforced section whereas the requirement under clause 6.3.3 of IS:13920 is calculation of moment of resistance of a given doubly reinforced section. The computational procedure to be followed to find the value of moment of resistance of doubly reinforced section may be included in IS:13920 as an annexure which will help all the structural Engineers and ensure uniformity. Computations being iterative in nature, suitable design aids in the form of moment of resistance factors will be a good alternative.
Ans: Please refer to the examples solved on IS:13920 using IS:456 and SP:16. All the above is given/explained in these examples. ( * Explanatory Examples for Ductile Detailing of RC Buildings http://www.iitk.ac.in/nicee/IITK-GSDMA/EQ22.pdf )
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