带可更换连梁的超高层结构抗震性能研究

发布时间：2018-06-26 00:29

本文选题：可更换连梁 + 剪力墙　；参考：《振动与冲击》2015年09期

【摘要】：近年来,国内外的部分学者提出了在剪力墙中设置可更换连梁,即在连梁的跨中设置一个耗能构件,称之为保险丝,通过保险丝的塑性变形耗散能量,而且震后易于对保险丝进行修复更换。根据之前提出的可更换连梁实用设计方法,将作者开发的一种可更换连梁保险丝安装在一个超高层Benchmark模型的部分连梁中,对带可更换连梁的结构和带传统连梁的结构分别进行地震反应分析,比较两个结构在大震下的层间位移角、基底反力以及损伤状况,研究表明:带有可更换连梁的超高层结构层间位移角会有所减小,剪力墙的损伤也会有所减轻,基底反力变化不大,而且可更换连梁的损伤集中在保险丝,易于震后修复更换。
[Abstract]:In recent years, some scholars at home and abroad put forward the idea of installing a replaceable connecting beam in the shear wall, that is, setting up a energy-dissipation member in the span of the connecting beam, which is called fuse, and dissipates energy through plastic deformation of fuse. And it is easy to repair and replace the fuse after the earthquake. According to the practical design method of replaceable connecting beam, a kind of interchangeable connecting beam fuse developed by the author is installed in a partial connecting beam of a super tall benchmark model. The seismic response analysis of the structure with replaceable connecting beam and the structure with traditional connecting beam is carried out, and the interstory displacement angle, the base reaction force and the damage state of the two structures under the strong earthquake are compared. The results show that the interstory displacement angle of super-tall structure with replaceable connecting beam will be reduced, the damage of shear wall will be alleviated, the reaction force of base will not change much, and the damage of replaceable connecting beam is concentrated in fuse, which is easy to be repaired and replaced after earthquake.
【作者单位】：同济大学土木工程防灾国家重点实验室;海南大学土木建筑工程学院;
【基金】：国家自然科学基金重大国际合作研究项目(51261120377);国家自然科学基金重大研究计划集成项目(91315301-4);国家自然科学基金资助项目(51408170) 国家科技支撑计划课题(2012BAJ13B02) 海南大学中西部计划学科重点领域建设项目海南大学科研启动项目(kyqd1401) 海南省自然科学基金项目(514208)
【分类号】：TU973.31

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