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Re: Steel Reinforcement Elongation Limit

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Yes, that is the problem with them!  They are like glass -- perfectly elastic 
until, ---- BOOM!

A. Roger Turk, P.E.(Structural)
Tucson, Arizona

>>This is true....

I am however trying to determine what would be an appropriate limiting
elongation when applying composite plates to the underside of beams for
flexural strengthening.

Composites have no plasticity...they are elastic to failure....

Plates can be manufactured to have the same modulus as steel (oops...is that
29ksi or 30ksi ?).....However, they are elastic up to failure, so it would
be nice to have an understanding of the maximum elongation that will keep
the underlying concrete from separating from the existing steel
rebars....precisely to avoid catastrophic failures..


jim<<

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