Investigation of the Iran common precast connection behavior compared with cast in place connections

Precasting is defined as casting structures element in factory and connecting them in building workshop. Therefore precast structures have different connections in comparison with monolithic ones which can lead to different seismic behavior regarding ultimate strength and specially ductility and energy absorption as a very important seismic requirements . The purpose of this research is investigation of the precast connections behavior as these connections have a different seismic behavior. According to the recent studies the most problem in these structures is due to connection joints. The purpose of this research is to study of the Iran common precast connection behavior by finite element method and compares its behavior with that of cast in place connections. So a middle joint of a four story structure with moderate moment resistant frames is compared in two precast and monolithic structures. Results indicate that the precast connection has not suitable behavior in strength, ductility and energy dissipation under applied efforts.