【摘要】 地震地面运动是一种复杂的多维激励,结构在单维与多维地震作用下的反应是不同的,特别是对一些复杂或重要的工程结构,只考虑单分量的地震作用是不够的,结构多维抗震是一个非常重要的研究课题。文章系统介绍多维地震激励下结构响应分析方法,比较反应谱法、时程分析法和随机振动法的优缺点;综合国内外研究成果,对结构多维隔减震装置进行详细的描述;对多维隔减震结构的试验研究和工程应用也作了相关介绍。最后,提出结构多维隔减震需要进一步研究的问题。更多还原

【Abstract】 Earthquake excitation is a kind of complicated multi-dimensional ground motion. Response of structures under single and multi-dimensional excitations is different, especially for complex or important engineering structures.Therefore,it is not enough to consider only the single-dimensional earthquake excitation,and today anti-earthquake for engineering structures under multi-dimensional earthquake excitations has become an extremely important research topic.In this paper,theories of response analysis methods for structures under multi-dimensional excitations are systemically introduced. Characteristics of the response spectrum method,time-history method and the random vibration method are compared. Then several common types of multi-dimensional isolation and mitigation devices are presented in detail based on previous studies. Experimental studies and engineering applications are also included. Finally,suggestions for further study in this area are presented.更多还原