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dipeshtanuja at yahoo.... Guest
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Posted: Mon Nov 13, 2006 7:35 am Post subject: design of slab |
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Hi friends,
is it necessary to desgn the slab contineous to all adjecent panal or simply supported on beams?
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sdec SEFI Regulars

Joined: 26 Jan 2003 Posts: 26
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Posted: Mon Nov 13, 2006 9:36 am Post subject: design of slab |
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Dear Dipes Please go thru the Appendix E of IS 456 where the edge conditions and the subsequent selection of coefficients for slab design have been explained in detail. The continuity of slab being designed has to be realistic and based on the actual edge conditions in your framing plans;pl let me know if you still have any doubts after u go thru the Code. Regards Sangeeta
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sdec SEFI Regulars

Joined: 26 Jan 2003 Posts: 26
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Posted: Mon Nov 13, 2006 9:42 am Post subject: design of slab |
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Dear Dipes Please go thru the Appendix E of IS 456 where the edge conditions and the subsequent selection of coefficients for slab design have been explained in detail. The continuity of slab being designed has to be realistic and based on the actual edge conditions in your framing plans;pl let me know if you still have any doubts after u go thru the Code. Regards Sangeeta
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dbhanuprasad SEFI Regulars

Joined: 26 Jan 2003 Posts: 23
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Posted: Mon Nov 13, 2006 1:21 pm Post subject: design of slab |
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Whenever there is continuity of slab it should be considered in the design as the Moments develop at support and reinforcement should be provided at top over supports. If simply supported condition (i.e discontinous at support) is assumed then the moment developed at support is considered as zero and no rft is provided at top over support (except for nominal rft) and the slab will crack above support though the slab may not collapse as the rft at mid span would be suffficient for strength.
On Mon Nov 13 15:12:38 2006, sdec.in[AT]gma... <sdec.in[AT]gma...> wrote: [quote]Dear Dipes Please go thru the Appendix E of IS 456 where the edge conditions and the subsequent selection of coefficients for slab design have been explained in detail. The continuity of slab being designed has to be realistic and based on the actual edge conditions in your framing plans;pl let me know if you still have any doubts after u go thru the Code. Regards Sangeeta
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