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Posted: Sat Dec 04, 2004 1:04 pm Post subject: Stirrup Yielding
If the longitudnal reinforcement yields in flexure the deflections increase predominantly and the sufficient warning to failure is initiated. But let us say in a beam a shear failure is to occur and the shear reinforcement starts yielding how will the warning signals be initiated??
Posted: Sun Dec 05, 2004 7:35 am Post subject: Stirrup Yielding
My dear SEFIAN,
A shear failure occurs without warning ! Whereas for flexural failures, there is enough warning beforehand by appearance of deflections and minor cracks which progressively become wider. That is why it is most dangerous to the lives of people occupying the building.
Posted: Mon Dec 06, 2004 10:37 am Post subject: Stirrup Yielding
Hello Raj shear failure is brittle failure & flexural failure is ductile failure. So that is the reason we want our structures to fail in ductile mode rather than in brittle mode. This is the philosophy behind earthquake resistance design of structures. Hence the structures are designed such that brittle failure does not occur before ductile failure.
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