Design rotation capacity of composite joints

摘要

Ductility is required in composite joints to enable redistribution of moment to occur. This may be provided through yielding of the slab reinforcement and slip of the shear connection. As the reinforcement may eventually fracture, a calculation method is needed to determine the joint rotation corresponding to this failure mode. This paper describes such a method. Comparisons with test results show good agreement. The proposed model can also be used to predict rotation capacity limited by slip due to partial shear connection.