多维地震作用下非对称结构利用“双功能”软钢阻尼器减震设计  

Study on the Irregular Buildings with "Dual Functional" Metallic Damper to Multi-dimensional Earthquake Motions

作　　者：李钢[1] 李宏男[1] 

机构地区：[1]大连理工大学海岸及近海工程国家重点实验室,辽宁大连116023

出　　处：《工程抗震与加固改造》2008年第2期5-9,56,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：大连市建委科技项目

摘　　要：深入探讨了多维地震动作用下消能减震偏心结构的动力反应,建立了消能减震偏心结构的计算方法和动力方程。编制MATLAB程序,对一装有"双功能"软钢阻尼器的5层偏心结构进行双向地震动作用下的动力反应分析。结果表明,"双功能"软钢阻尼器不但减小了结构的水平位移反应,同时对于多维地震作用下的扭转变形也有较为明显的减震效果。The seismic response of the horizontal and torsional coupling vibration of dissipative structures under multi-dimensions earthquake motions is analyzed in this paper, The method of calculating the dissipative structures and equilibrium equations for multi-dimensional earthquake ground motions of structure are established. A five-story dissipative structure is taken an example and an extensive simulation analysis is carried out using program MATLAB. The analytical results show the ＂dual functional＂ metallic damper can effectively reduce the structural response due to the joint action of horizontal and torsional components of the ground motion excitation.

关 键 词：软钢阻尼器 扭转变形 多维地震动 

分 类 号：TU352.1[建筑科学—结构工程]