Simplified method for modeling reinforced concrete column–steel beam connections with tube plate

Abstract

In this article, the cyclic behavior of reinforced concrete column–steel beam connections is investigated. In this research, an experimental and numerical study is conducted on the performance assessment of the through-beam connections with two detailing. The model details consist of the tube plate and steel doubler plate for the joints. The results show that the steel doubler plate increases the yielding capacity and initial stiffness of the connection but has no effect on the maximum capacity of the connection. Results show that using tube plate alone could have a good performance and there is no need for doubler plates. Furthermore, in order to model this type of connection with tube plate, modified model based on the Cordova’s proposed model is presented, and the load-cycle repetition on the connection at both specimens is simulated utilizing the OpenSees software by taking into account the bearing distortions and joint shear, and the obtained results are verified with the experimental ones as well.