Nonlinear Finite Element Analysis Of RC Frames With Y-eccentrically Brace

At present, the research of the steel brace mainly concentrated in the steel braced frame construction. The link beam was used to improve the rigidity and carrying capacity of structure, through shear-yield of link beam ,the brace realize to dissipate energy and improve the seismic performance of structures. In recent years, the transformation of RC frame structure use the merits of link beam brace and the research of RC frames with Y-eccentrically brace was extremely limited at home and abroad. So the research of RC frames with Y-eccentrically brace is particularly important and necessary.In this paper, the nonlinear analysis of RC Frames with Y-eccentrically brace are analysized by ABAQUS finite element, Besides focusing on mechanical perfor-mance, furthermore some primary design parameters were analyzed respecttively, the corresponding influence patterns of structural behaviours were obtained, such as the loading-carrying capacity, link beam failure mode, seismic ductility and stiffness of structure, which provided the references for relevant researchers and designers. The primary design parameters Including length of link beam, height and thickness of web, width of flange ,the length and thickness of node board, width of flange of brace,the are and the Reinforcement ratio of columus, the are and the Reinforcement ratio of beam.