Simplified model to predict partial-interactive structural performance of steel–concrete composite slabs

This paper deals with a simplified model to predict the partial-interactive behavior of steel–concrete composite slabs. A series of nonlinear partial-interaction analyses with various degrees of interaction and shear span ratios are conducted to formulate the partial-interactive problem. Through the statistical analysis of these data, a simplified model for the partial-interactive structural performance is proposed. The proposed model is verified by test program. It is clear that a simplified model based on a partial-interaction analysis is a powerful tool to predict the partial-interactive structural behavior of composite members. In this method, only the push-out test for specimens with the same profile as a steel–concrete composite slab is required. This may be attributed to the potential advantage of the proposed method over the conventional method.