STUDY AND APPLICATION ON A NEW TRANSFER STRUCTURE IN EXTENSION-STORY ENGINEERING OF BUILDINGS

Compos ite truss transfer structure with web-type column (web-type column transfer structure) is a new kind of structure,where web-type columns are set up between beams. The function of web-type columns is to adjust the moment of the structures. It can realize reas onable distribution of moment in structures. It reduces the peak value of moment in the end of girders and makes the moment balance in the whole structures. It is presented the experimental study of seismic behavior on web-type column transfer structure. The failure mechanism,bearing capacity,hysteresis capacity and ductility of the structure are analyzed under lateral cyclic load. The structure has better aseismic resistance. The suggestions on des ign are given. This transfer structure is successfully applied to extension-story engineering of building.