基于ANSYS方法的多层轻钢结构地震时程响应分析

Analysis on multi-light-steel structural seismic time history with ANSYS

目的研究多层轻钢结构抗震性能,提供其结构应用和设计的理论及实际指导。方法采用有限元模型对多层轻钢结构进行地震响应分析,计算各层位移时程曲线,研究不同楼板厚度结构的时程响应情况。结果多层轻钢结构设计时楼板厚度的增加由于重量的增加不一定对抗震有害,也不一定能够提高结构的抗震能力。同时,结构呈现很好的剪切变形。结论设计应该根据具体要求考虑楼板厚度对结构抗震性能的影响;结构具有良好的整体性。

Aim To study the theory of seismic performance of multi-light steel structure,providing guidance in terms of the structure and design theory and practical application.Methods Finite element model of multi-light steel structure is used for seismic response analysis,displacement curves of each layer is calculated,the time history response to different thickness structure of floor is studied.Results The design of multi-light steel floor thickness increase,due to the increase in weight,is not necessarily harmful to the earthquake protection,not necessarily to improve the seismic capability.Meanwhile,the structure presents a good shearing.Conclusion In design,the impact of floor slab thickness to the structural seismic should be considered according to specific requirements.The structure has good integrity.