Experimental Evaluation of Composite Action
Rafik Y. Itani, Houssain M. Morshed, Robert J. Hoyle · Journal of the Structural Division · 1981
Experimental results for a layered lumber diaphragm are presented and compared with theoretical analysis. The influences of joists, boundary members, and layer discontinuities on deflections and strains are evaluated. The theoretical analysis overestimates deflections and strains. Layer discontinuities and boundary members have insignificant effects while gluing joists to decking results in an 18% reduction in deflection. Further tests are recommended to reach more conclusive results.