ZHANG Heng,ZHU Min,YANG Xinge.Review of research for damping correction factor of earthquake spectrum[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,38(05):129-138.[doi:10.13197/j.eeev.2018.05.129.zhangh.015]





Review of research for damping correction factor of earthquake spectrum
张衡 朱敏 杨新格
西南交通大学 土木工程学院, 四川 成都 610031
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
earthquake spectradamping correction factorinfluence factorresearch methodleast-squares regressionrandom effects model
Damping correction factors are constantly utilized as an useful way to obtain the acceleration or displacement response spectra provided with a viscous damping ratio of 5% to the other values of viscous damping required for building design in earthquake engineering and is an alternative method exactly to solve the design problem of structures with mutative levels of viscous damping. However, the research about damping correction factor is still lacking in our country. In order to help future researchers, the influencing factors and research methods are summarized and discussed based on the research results of the damping correction factor in more than thirty years. In the paper, the previous research contents are analyzed and the research methods are also illustrated. From the results of the final analysis, we can get the following conclusions:the damping ratio, the natural period, the earthquake magnitude, the propagation distance, the site condition, the tectonic setting and the type of earthquake will affect the value of the damping correction factor; the least-squares regression method is currently approved and the most popular method. At the end of this paper, a way that may be suitable for the study of damping correction coefficients in the future is proposed by means of least-squares regression and random effects model.


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更新日期/Last Update: 1900-01-01