摘要
研究了新型220 k V户内变电站屋顶构架结构体系的结构特性和整体抗震性能,建立常规构架和屋顶构架的有限元模型,考虑屋顶构架-GIS综合楼上下刚度分布不均匀,开展了上下结构共同作用的结构体系的地震反应分析。通过结构体系的模态分析得到其振动特性,采用时程分析法得到整体结构的动力特性,比较分析了不同结构体系的地震反应特性,研究结果表明新型变电站屋顶构架的抗震设计应加强屋顶构架的侧向刚度和连接节点的强度。
In order to research the whole seismic performance of the new indoor substation roof frame-GIS complex building, the finite element models of the conventional frame and roof frame are made. Considering the uniform up and down stiffness of the roof frame-GIS building,the seismic response of the structure system which has an upper and lower structure interaction is made. The vibration characteristics and dynamic characteristics could be concluded by the modal and time-history analysis. By comparing and analyzing these numerical results, it can be seen that the lateral stiffness and the connection node of the new indoor substation roof frame should be strengthened.
出处
《电力工程技术》
2017年第5期76-80,92,共6页
Electric Power Engineering Technology
基金
国家电网公司2016年科技项目(户内变电站屋顶构架应用研究)
关键词
屋顶构架-GIS综合楼
动力特性
时程分析
roof frame-GIS building
dynamic characteristics
time-history analysis
