【摘要】 既有结构加轻钢会导致结构刚度、阻尼比和周期发生变化,因此,在对结构进行分析的时候,有必要对结构整体进行地震分析。文章利用有限元软件MIDAS分析结构整体的抗震性能,为实际加层结构的抗震设计提供理论参考。更多还原

【Abstract】 Significant differences occour in the stiffness,period and damping ratio after adding light-weight steel storeys on the top of the original building.It is necessary to analyze the integ ral structure due to the unreliability of calculating the adding storys independently.In this paper,the finite element analysis software SAP2000 is used to analyze the seismic properties of the integ ral structure,and it of theoretical reference on the seismic design of adding storey.更多还原