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

The brace is one kind of effective anti-lateral force member, the eccentric bracing compared with concentrically bracing frame , stiffness and strength reduce less. But the eccentric bracing frame with sourel ductility and Energy-dimipation behavior ,And significantly improve structure anti-earthquake capability. One, the Y eccentric bracing structure not only owns the general performance of eccentric support structure, Also has the unique advantages. Another, the connection configuration of Y-eccentrically steel brace as to assure the effectiveness of steel brace. The transformation of RC frames with Y-eccentrically brace was extremely limited at home an abroad. so the research of the Reinforced concrete frames with Y-eccectrically brace is particularly important and necessary.In the paper, Using finite element software for Y eccentric ABAQUS framework reinforced concrete support for nonlinear analysis, Through the analysis of the structure and the experiment test , The structure of the system loading mechanism were obtained. And the contrastive analysis show U-section steel-encased can effectively solve the Y-eccentrically barce and concrete frame beams connection problems. Furthermore some primary design parameters were analyzed respectively, the corresponding influence patterns of structural behaviours were obtained, such as the loading-carrying capacity, link beam failuremode, seimic ductility and stiffness of structure, which provided the references for relevant researchers and designers.