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采用ANSYS软件建立三维模型,对某在建的两层冷弯薄壁型钢住宅静力性能和地震荷载作用下弹塑性性能进行分析,为该类结构体系在高烈度区以及灾后恢复重建中的应用提供依据。分析结果表明:该类结构体系对于高烈度地区具有较好的适应性;该结构体系的纵向刚度较横向小,结构体系第1阶振型以扭转为主,在设计中需引起重视;在地震波作用下,其动力放大系数与同类型的普通钢结构相差不大,但不同的地震波所得到的结果差别比较大,所以在进行时程分析时,要正确选择地震波。
The three-dimensional model was established by ANSYS software to analyze the elasto-plastic properties of a two-story cold-formed thin-walled steel building under construction under static load and earthquake load. The application of this kind of structural system in high intensity zone and post-disaster reconstruction Provide evidence. The results show that this kind of structural system has good adaptability to high intensity regions. The longitudinal stiffness of this kind of structural system is smaller than that of transverse direction. The torsional mode of the first order mode of structural system is torsional, which needs attention in the design. Under the action, the dynamic amplification coefficient is not much different from the ordinary steel structure of the same type, but the results obtained by different seismic waves are quite different, so the seismic waves should be correctly selected in the time history analysis.