| Because the steel pipe concrete structure can make full use of two materials as steel pipe and concrete and has other merits as high strength. light weight. good performance of earthquake resistance, it has found wide applications in high-rise buildings. The performance of column-steel beam connection is the key to the whole structure performance, while for the time being the research on tensibility for column-steel beam connection in square steel pipe concrete is preliminary. In the paper, the finite element program Ansys 7.0 is adopted to analyze the welding connection joint of column-steel beam in square steel pipe concrete with inner dummy plate. The specimen is designed in + shape to simulate the force status in rigid connection area of flange girth part in tension of square steel pipe concrete column and steel beam. The failure status. tensibility performance. viscosity character and dissipative capacity of joint can be calculated in monotonic load and periodic load, the influence of axis-push ratio under low period repeat load to joint's earthquake resistance such as tensibility performance and dissipative capacity is analyzed mostly for column-steel beam welding joint in steel pipe concrete. |
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