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DESIGN OF OMRF AND ORDINARY WALLS IN PROPOSED IS:456

 
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hemalmistry
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Joined: 01 Jul 2009
Posts: 64

PostPosted: Sun May 31, 2020 12:17 pm    Post subject: DESIGN OF OMRF AND ORDINARY WALLS IN PROPOSED IS:456 Reply with quote

Dear Members,

All structural members (SMRF, special wall & coupling beams, gravity elements,joints etc) of buildings in seismic zone 3,4 & 5 needs to be designed as per IS:456 along with additional requirements of IS 13920. However, structural members (OMRF, ordinary walls and coupling beams, gravity elements, joints etc) of buildings in zone 2 can be designed with IS 456 only.

Following elements requires separate design/detailing requirements in upcoming IS 456:

(1) Shear design of OMRF column : Design shear force extracted from worst load combination (or analysis shear) shall include overstrength to ensure safety against shear failure.

(2) Design of joint of OMRF.

(3) Shear design of ordinary wall : Design shear force extracted from worst load combination (or analysis shear) shall include overstrength to ensure safety against shear failure.

(4) Design of coupling beams connecting ordinary walls.

(5) Definition and Separate requirements for ordinary coupled wall (IS 456) and ductile coupled wall (IS 1390).

Regards,
Hemal Mistry
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