Experimental Study on the New Type of Connecting Nodes of Prefabricated Stairs Using Flexible Grouting Material

Abstract In recent years, prefabricated buildings have been developing positively in China. Prefabricated concrete stairs are widely used because of their quick construction, convenient handling, reduced cost, and premium appearance. They also promising application potential cast-in-place structures steel buildings. The important escape routes during earthquakes play the role “safety islands.” Therefore, study on seismic performance connecting nodes is significant. For a new flexible-hinge node with flexible grouting material (FGM), low-frequency cyclic loading test carried out this paper to stress end under in-plane out-of-plane loading. results show that moderate bearing capacity stiffness, which can mitigate effect diagonal bracing small medium dissipate energy certain extent.