地震动竖向设计反应谱研究综述

Review of Vertical Response Spectrum of Earthquake

摘要: 近年来，竖向地震动的影响越来越被人们重视。特别是对于大跨度及超高层结构来说，其抗震设计中需要考虑到竖向地震动影响。国内外各个学者也对竖向地震动进行了深入的研究。目前普遍认为竖向加速度反应谱统计平均值在与水平加速度反应谱的1/2~2/3之间。但实际上影响竖向加速度反应谱的因素众多且关系复杂，在某些特定的地质以及震源条件下甚至会超过规范规定的50%。本文回顾了国内外对竖向设计反应谱的研究现状，对目前的研究进行了总结，发现竖向设计反应谱的基本研究方式是从竖向地震动的预测方程和V/H谱值比两方面入手。同时比较了各个方法的优劣，并给出了竖向设计反应谱的数据处理过程，为以后的竖向地震设计反应谱的深入研究提出一些参考。

Abstract: In recent years, people pay more and more attention to the influence of vertical ground motion. Especially for large-span and super high-rise structures, the vertical seismic effect should be considered in the seismic design. Scholars at home and abroad have also conducted in-depth research on vertical ground motion. At present, it is generally considered that the statistical average value of vertical acceleration response spectrum and horizontal acceleration response spectrum is between 1/2~2/3. But in fact, there are many factors that affect the response spectrum of vertical acceleration, and the relationship is complex. In some specific geological and focal conditions, it will even exceed 50% of the standard. This paper reviews the research status of vertical design response spectrum at home and abroad, summarizes the current research and finds that the basic research methods of vertical design response spectrum are from the prediction equation of vertical ground motion and V/H spectrum value ratio. At the same time, the advantages and disadvantages of each method are compared, and the data processing process of the vertical design response spectrum is given, which provides some references for the further study of the vertical seismic design response spectrum.