chamokinawan
Structural
Just read a recent thread about shear failure in a wall and it was claimed that it was backstay effect. I couldn't find a good description on google so I thought I'd start a new thread.
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What is Backstay Effect?
- Thread starter chamokinawan
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Yeah, that was me. One of my favorite topics actually:
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Basically, a shear wall terminating in a basement gets laterally restrained by the upper few floor diaphragms of the basement and turns into a propped cantilever rather than a pure cantilever. That can create a very high shear demand below main floor for buildings that go much higher above grade than they do below grade. Flip through the links. Once you see the right diagram, it will be pretty obvious.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
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Basically, a shear wall terminating in a basement gets laterally restrained by the upper few floor diaphragms of the basement and turns into a propped cantilever rather than a pure cantilever. That can create a very high shear demand below main floor for buildings that go much higher above grade than they do below grade. Flip through the links. Once you see the right diagram, it will be pretty obvious.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
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