Diaphragm Values for Gypsum + Formboard
Diaphragm Values for Gypsum + Formboard
(OP)
I'm doing a seimic evaluation of an existing (single story)building (built in the early 70's) with the roof consisting of 2" gypsum over 1/2" formdeck. I'm sure there must be some diaphragm capacity to this material. In ASCE 41-06 (Seismic Rehabilitation of Existing Buildings, I couldn't find any values indicated in Table 8-2 (for wood diaphragms), although Table 8-1 (for shear walls) lists some values for various gypsum products. Any suggestions/recommendations as to where I could obtain this information? Thanks.





