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地震作用是一种复杂的多维运动。特别对一些复杂且重要的工程结构,如果只考虑其水平地震作用是不够可靠和准确的。因此,多维地震作用下工程结构的抗震措施是一项极其重要的研究课题。在水平方向和垂直方向两种不同情况下开发并测试一种新型的多维隔震和减震装置(MEIMD),研究激励频率和位移幅值对装置水平性能和垂直性能的影响。同时,提出一个改进的、合乎相应标准的实体模型,从而能够有效描述频率和位移对装置水平性能和垂直性能的影响。研究表明,MEIMD在水平方向和垂直方向都有很高的耗能能力,所提出的模型可以准确模拟储能模量和损耗系数。
Earthquake action is a complex multidimensional movement. Especially for some complex and important engineering structures, it is not reliable and accurate enough to consider only the horizontal seismic effect. Therefore, the aseismic measures of engineering structure under multidimensional earthquake is an extremely important research topic. A new type of multi-dimensional isolation and damping device (MEIMD) was developed and tested in two different horizontal and vertical directions to study the influence of excitation frequency and displacement amplitude on horizontal and vertical performance of the device. At the same time, an improved and conforming solid model is proposed, which can effectively describe the influence of frequency and displacement on the horizontal performance and vertical performance of the device. The results show that MEIMD has high energy dissipation capacity both horizontally and vertically. The proposed model can accurately simulate the storage modulus and dissipation factor.