大跨维修机库整体模型的地震响应研究  

Integrated Model Seismic Response Analysis of Long-span Maintenance Hangar

作　　者：徐庆阳[1] 李爱群[2] 张洁[2] 沈顺高[3] 胡灿阳[1] 

机构地区：[1]南京审计学院国际审计学院,江苏公共工程审计重点实验室,江苏南京211815 [2]东南大学土木工程学院,东南大学混凝土与预应力混凝土结构教育部重点实验室,江苏南京210096 [3]中国航空工业规划设计研究院,北京100120

出　　处：《工程抗震与加固改造》2012年第5期13-19,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：江苏省自然科学基金面上项目(BK2011693);江苏省高校自然科学研究项目(10KJB560003)

摘　　要：大跨度维修机库结构动力特性复杂,研究该类结构并进行多维地震响应具有重要的实用意义。本文在分析平板网架类大跨机库动力特性的基础上,对机库进行了单维以及多维地震作用下的时程分析,研究了机库屋盖杆件在不同方向地震波作用下的内力分布特点,进而给出了机库在各种工况下的杆件内力放大系数分布规律。结果表明,水平地震作用下机库下部支撑柱附近的杆件往往内力值与内力放大系数均较大,在设计中应给予足够重视。最后通过大量计算分析研究了地震动输入角度对结构主要响应指标的影响效果。The dynamic characteristics of long-span hangar are very complex, and it has practical significance to study the seismic response of this structure under multi-dimensional earthquake. Based on the dynamic characteristic analysis of long-span hangar which structure type is plate space frame, time-history analysis of one hangar under single-dimension and three-dimension seismic wave is carried out. Distribution characteristics of internal force of member belong to the roof is studied, furthermore magnification factors of internal force are given out. Results show that the members near columns should be paid more attention during design. Finally the influence of seismic wave input angle to structural seismic response is studied through a great deal of calculation and analysis.

关 键 词：大跨机库 多维地震 整体模型 地震响应分析 

分 类 号：TU311.3[建筑科学—结构工程]