高位转换耗能减震框剪结构拟静力分析  

Pseudo-static Analysis of High-level Transfer Frame-shear Structure with Dissipated Device

作　　者：万里鹏 吴从晓[2] 

机构地区：[1]珠海市建筑设计院,广东珠海519000 [2]广州大学土木工程学院,广东广州510006

出　　处：《工程抗震与加固改造》2015年第3期79-83,共5页Earthquake Resistant Engineering and Retrofitting

基　　金：广东省高等教育科技创新项目(2013KJCX0145);广州市珠江新星项目

摘　　要：结合高位转换结构体系已有的拟静力试验结果,开展高位转换耗能减震框剪结构体系拟静力分析研究,了解高位转换耗能减震框剪结构布置位移耗能减震装置对结构刚度、位移和延性变化情况,确定高位转换耗能减震框剪结构体系延性系数可能存在的范围。研究结果表明:高位转换耗能减震框剪结构体系在拟静力作用时的滞回曲线饱满,具有较大的耗能能力;高位转换耗能减震框剪结构体系相比于普通高位转换结构体系,其承载力能得到提高;高位转换耗能减震框剪结构的延性随着阻尼器初始刚度、屈服力和屈服后刚度比变化不是十分敏感;采用高位转换耗能减震框剪结构能够提高结构的耗能能力;高位转换耗能减震框剪结构体系的延性能够得到提高;高位转换耗能减震结构体系框剪结构的延性和耗能能力随着阻尼器初始刚度的增加而减小。Based on the existing pseudo-static tests results of high-level transfer structure system, the analysis of the high-level transfer frame-shear structure with dissipated device （HTSD） is carried out, which include ①the changes of structure stiffness, displacement and ductility of HTSD with displacement-based dissipated devices ;②the possible range of ductility factor of HTSD. The research results show the well ability of energy dispassion of HTSD, which hysteretic curve of HTSD is plumper under pseudo-static loadings. The HTSD has higher bearing capacity to the normal high-level transfer structure system. The ductility of HTSD is not quite sensitive to the change of initial rigid of damper,yield force and the post yield stiffness ratio. HTSD system can improve the energy-dissipating capacity and ductility of structure, both of them are reduced when the initial rigid of damper increases.

关 键 词：高位转换结构体系 耗能减震 延性系数 滞回性能 

分 类 号：TU352.1[建筑科学—结构工程] TU398.2