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Re: Structural importance of full-depth shrinkage cracks

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In a message dated 2/26/05 11:46:45 PM, smaxwell(--nospam--at) writes:

there needs
to be some flexural compression to "balance" out the flexural tension.

Yes, but there may be a significant amount of pure catenary tension in the bottom rebar that doesn't need to be balanced by any compression at the top.  Frankly I can't imagine how there could be an open crack at the top, or full depth, without a whole LOT of catenary tension in the rebar.

Ralph Hueston Kratz, S.E.