【摘要】 在24层高层顶部新增一较为复杂的装饰性钢结构,基于安全性考虑,对于预埋件的设计,风载和地震荷载下的结构安全性进行了理论及有限元分析。首先对结构进行风荷载下的静力分析,然后进行模态分析,模态分析采用子空间迭代法,地震响应分析采用瞬态分析方法,采用ANSYS的参数化语言施加地震波。结果表明,设计合理安全,符合规范要求。更多还原

【Abstract】 A steel structure for decorating on top of a tower building in Beijing is installed.Based on the structure’s safety,the paper processes the theoretic and finite element analysis for the design of embedded parts、the resistance against wind and earthquake.At first authors do static analysis of structure under wind-load,second the author do model analysis of structure by using subspace iterative method.The method of transient is used to analyze the structure’s response for earthquake,and APDL is adopt to apply the seismic-wave.The research result manifest that the design is reasonable,safe and accords with the Chinese criterion.更多还原