基于能量的框架-摇摆墙结构与框架-剪力墙结构地震反应分析对比
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（1 同济大学土木工程防灾国家重点实验室，上海 200092）[摘要] 摇摆墙结构作为一种新型的可恢复功能结构，近年来从理论分析到数值计算都进行了较多研究，但大多集中于研究摇摆墙结构在地震中的变形能力。已有研究表明地震动输入能量以及结构耗能机理对于认识结构的地震反应特性具有重要意义。利用通用有限元软件SAP2000，以相似的墙体布置分别建立13层框架-剪力墙结构和框架-摇摆墙结构模型，按照8度抗震设防要求进行弹塑性时程分析，得到二者层间位移曲线以及楼层剪力-位移曲线，再利用软件OriginPro进行数据处理，得到结构滞回曲线及消耗的能量，从而表明以上两结构各自耗能部位及所占比例。通过两者的比较，证明了框架-摇摆墙结构的耗能更多依靠于摇摆墙整体摆动的动能、势能和阻尼器的滞回耗能，抗震性能优于框架-剪力墙结构。[关键词] 框架-摇摆墙结构;框架-剪力墙结构; 弹塑性时程分析; 能量耗散; SAP2000中图分类号：TU313.3 文献标识码：A 文章编号：1002-848X(2013)S2-0418-05作者简介：徐佳琦，博士，Email：08xujiaqi@tongji.edu.cnEnergy based seismic response of frame-rocking-wall structure and frame-shear-wall structureXu Jiaqi, Lu Xilin（The Key Laboratory for Disaster Mitigation in Civil Engineering, Tongji University, Shanghai 200092, China）Abstract：As a new branch of earthquake resilient structure, researches of rocking-wall structure have been carried out from theoretical analysis to numerical calculation in recent years, but most of which have been concentrated simply on the seismic deformation ability. Studies have shown that seismic input energy and the energy dissipation mechanism has great significance for understanding the seismic response characteristics. The seismic responses of a 13-story reinforced concrete (RC) frame with similar design of rocking-wall and shear-wall respectively were compared. Using the elastic-plastic time history analysis by general finite element software SAP2000, in accordance with the 8 degree earthquake, the result of displacement curve and shear force-displacement curve can be got. By the data analysis software OriginPro, the result of hysteretic curve and energy dissipation can be got, which can prove that the energy dissipation of rocking-wall structure relies on kinetic energy, potential energy and the damper more, and the seismic performance is better than the shear-wall structure.Keywords：frame-rocking-wall structure; frame-shear-wall structure; elastic-plastic time history analysis; energy dissipation; SAP2000
