混凝土结构上轻钢结构加层抗震性能的反应谱分析

Analysis of Response Spectrum on the Seismic Properties After Adding Light-weight Steel Storeys on the Concrete Structure

在原有结构上加层轻钢结构会导致结构的振型、刚度、周期和阻尼比发生显著的变化,由于单独分析加层结构的计算可靠性较低,因此,有必要对结构的整体进行分析计算。本文利用大型有限元软件SAP2000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。

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