Diaphragm Shear Values - Structo-Crete
Diaphragm Shear Values - Structo-Crete
(OP)
Take a look at this product report, page 5 simple beam diaphragm values. Am I missing something or shouldn't there be different values depending on the load direction relative to the panel joints? I emailed with USG and they said that the testing was only done for one direction in the configuration shown. OK, great.... but lateral loads occur in other directions. Am I missing something?
http://www.p-e-i.com/documents/Structocretever1.0....
http://www.icc-es.org/Reports/pdf_files/ESR-1792.p...
http://www.p-e-i.com/documents/Structocretever1.0....
http://www.icc-es.org/Reports/pdf_files/ESR-1792.p...






RE: Diaphragm Shear Values - Structo-Crete
There's no such thing as uni-directional shear in the context of a shear panel (diaphragm assumed incapable of providing axial stress resistance). It's the old pure shear element business from your Mohr's circle days back in university.
For this reason, I contend that you only need shear testing in one direction. It's similar to wood and steel diaphragm testing. Capacity will be governed by shear stress in one direction or the other but that governing capacity will apply to transverse loading applied in either direction. It's a mouthful, I know. Let me know if a sketch is required.
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Diaphragm Shear Values - Structo-Crete