钢-混凝土组合框架结构的抗震性探讨

Discussion on Seismic Resistance of Concrete Frame-steel Structure Composite Structure

利用MIDAS/Gen分析软件对某个建筑体的组合框架结构进行抗震性能分析,充分考虑了不同材料阻尼比对抗震性能的影响,通过计算得到该组合结构的平扭周期比为0.4,另外还对整体结构在地震作用下的位移与应力变化情况进行分析。研究发现,该结构的部分指标未能满足规范要求,需要进一步采取有针对性的措施,来实现抗震性能的提升。

Using MIDAS/Gen analysis software to a complex combination of frame structure seismic performance analysis,fully considering the different material damping ratio on the seismic performance,the composite structure is obtained by calculating the translation-torsion cycle ratio 0.4,also on the whole structure under seismic action,the change of the displacement and stress are analyzed.Through the research,it is found that some indexes of the structure fail to meet the requirements of the code,and further targeted measures should be taken to improve the seismic performance.