消能支撑框架结构的低周往复水平荷载试验仿真分析方法

Simulation analysis of quasi-static cyclic test for energy dissipation braced frame structures

本文提出了低周往复水平荷载试验仿真分析方法 ,该法既不同于弹塑性地震反应时程分析 ,又不同于常见的弹塑性静力分析。它能模拟低周往复水平荷载试验的过程 ,既避免了地震波频谱的影响又体现了水平荷载的往复作用 ,可用于计算结构和构件的滞回曲线、截面的屈服顺序及相应的荷载和位移 ,尤其适用于分析消能支撑框架结构等耗能减震结构。本文用此方法分析了在框架柱轴压比超过限值要求时消能支撑的作用。

In this paper, the simulation analysis of quasi-static cyclic test is presented, which is different from both the nonlinear dynamic analysis and the nonlinear static analysis. The proposed analysis can be used to obtain the hysteretic curve of the structure, the yielding order of the sections of the beams and the columns, etc. It especially fits for the analysis of energy dissipation braced frame structures. As a demonstration, it is used to analyse the effects of the energy dissipation brace, when axial compression ratio of the columns exceeds the limitation.