单层框架动力稳定性影响参数分析与极限位移确定

Analysis of Influence Parameters to Dynamic Stability and Ultimate Displacement of Single-story Frame

采用有限元法对多种单层钢框架结构进行动力稳定性分析,研究不同地震作用、长细比、轴压比等参数对动力稳定性的影响,绘制出轴压比与动力极限位移的关系曲线,提出单层钢框架在实际工程中防倒塌设计的建议。

Dynamic stability analysis of many single-story frames is analyzed based upon the finite element method, the influence of different earthquake motion, slenderness ratio, axial compression ratio on dynamic stability of single-story frame is studied. Relationship curve of ultimate displacement and axial compression ratio are plotted. Then, anti-collapse design advice to single-story steel frames in practical engineering is put forward.