摘要
场地地震响应分析是场地地震安全评价中很重要的一环,对场地和构筑物的地震动参数的设计具有很大的参考价值,会影响后续的工程设计与施工。通过比较南宁地区某工程以及某软土地基工程两种不同类型的地质条件下,场地在不同类型地震作用下的动力响应情况,对不同类型场地的动力响应参数进行了分析,对地质勘察报告中的地质条件等数据进行整理,运用DEEPSOIL软件对多个土层剖面的地震动力响应进行分析,讨论了等效线性与非线性条件下,在突然强震和持续地震两种不同类型地震情况下不同类型场地的动力响应情况,并进行了相关的动参数研究。旨在为今后场地-结构动力反应分析提供基础,同时也为工程施工设计提供参考。
Site seismic response analysis is a very important part of site seismic safety evaluation.It has great reference value for the design of ground motion parameters of sites and structures,and will affect subsequent engineering design and construction.By comparing the dynamic response of the site in different types of earthquakes under two different types of geological conditions for a project in Nanning area and a soft soil foundation project,this paper analyzes the dynamic response parameters of different types of sites,sorts out the geological conditions and other data in the geological survey report,analyzes the seismic dynamic response of multiple soil layers by using DEEPSOIL software,discusses the dynamic response of different types of sites in the case of sudden strong earthquakes and sustained earthquakes under the equivalent linear and nonlinear conditions,and makes a research on related dynamic parameters.It aims to provide a basis for future site-structure dynamic response analysis and also provide a reference for engineering construction design.
作者
李英杰
LI Yingjie(China Railway Construction Group Co.Ltd.,Beijing 100040,China)
出处
《铁道建筑技术》
2021年第7期39-43,共5页
Railway Construction Technology
基金
中铁建设集团有限公司科技研发计划项目(19-43d)。
关键词
地震动力响应
数值分析
加速度
振幅
seismic dynamic response
numerical analysis
acceleration
amplitude
