考虑不均质地基影响时单层球面网壳地震反应分析

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英文篇名：SEISMIC ANALYSIS OF THE SINGLE LAYER LATTICED DOME CONSIDERING THE EFFECT OF IRREGULAR GROUND 中文刊名：空间结构 英文刊名：SPATIAL STRUCTURES 作者：董亮 英文作者：DONG Liang (Dept. of Building Engineering ; Beijing Polytechnic University ; Beijing 100022 ; China) [ 中文关键词：不均质地基 ; 空间变动 ; 场地效果 ; 一维波动理论 ; 多点输入 ; 强制位移法 英文关键词：irregualr ground ; spatial variability ; siteresponse effect ; onedimensional wave theory ; input of multi support ; forced displacement method 出版日期：1999-12-30 机构：北京工业大学建筑工程学院!北京100022 年：1999 期：04 出版单位：空间结构

摘要

本文采用一维波动理论对地震波在不均质地基中传播时产生的空间变动进行分析,得出具有不同振幅变化倍数和相位的地面运动,利用此结果对质量分布均匀、大跨度单层球面网壳进行多点输入的地震反应分析。同时为突出场地土的不均质性,本文针对场地效果(site-response)产生的空间变动,考察了它对单层球面网壳地震反应的影响
In this paper, by applying one dimensional wave theory, spatial variability caused by irregular ground is analyzed. Then surface ground motion with different ratio of amplitude and phase difference is found. Based on these results, the dynamic response analysis of the dome is carried out with the input of different ground motions at multi supports. At the same time, the seismic response of the dome is investigated considering the spatial variability caused by site response effect in order to emphasis the effect or irregular ground. [

引文

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