SELF-CENTERING STEEL COLUMN- FOUNDATION CONNECTION, EQUIPPED WITH SUPER ELASTIC NITINOL SHAPE MEMORY ALLOY

摘要

The behavior of steel moment resistant frame (SMRF) strongly relies on the function of beam and column and practically the connections between them and also depends on column-foundation connection. It is obvious that structural connections should be designed in such a way that the structural members and connections (generally the structural system) can provide the required resistance and flexibility against lateral loads. Basically the lateral resistance and the capacity of flexibility of connections in the MRFs are the most essential factors in the seismic capacity of such structures. In this invention the function of the connection is in a way that the connection angles of the two sides of column web are responsible for carrying, shear force and creating joints for the rotation of the column and the connection rods of two sides of the column are responsible for tolerating the bending moment (as couple axial forces). The rods of connecting in two sides of the column are not connected to the base plate and are directly connected to the controlled anchor bolt in the foundation concrete by the couplers.