圆柱面巨型网格结构地震响应时程分析

详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文

英文篇名：Research on the Seismic Response Behavior of Cylindrical Latticed-Intersected-Three-Dimensional-Beam-System Reticulated Mega-Structure by the Time-History Method 中文刊名：湖南大学学报(自然科学版) 英文刊名：Journal of Hunan University (Natural Science) 作者：贺拥军 ; 周绪红 ; 董石麟 英文作者：HE Yong-jun~1 ; ZHOU Xu-hong~2 ; DONG Shi-lin~3(1. College of Civil Engineering ; Hunan Univ ; Changsha ; Hunan410082 ; China ; 2. College of Civil Engineering and Architecture ; Chang'an Univ ; Xi'an ; Shaanxi 710064 ; China ; 3. College of Civil Engineering and Architecture ; Zhejiang Univ ; Hangzhou ; Zhejiang310027 ; China) 中文关键词：交叉立体桁架系 ; 巨型结构 ; 平板网架子结构 ; 地震响应 ; 时程法 英文关键词：latticed-intersected-three-dimensional-beam-system (LITDBS) ; reticulated mega-structure ; grid substructure ; seismic response ; time-history method 出版日期：2005-06-25 机构：湖南大学土木工程学院,长安大学建工学院,浙江大学建工学院 湖南长沙　410082 ,陕西西安　710064 ,浙江杭州　310027 年：2005 期：03 出版单位：湖南大学学报(自然科学版)

摘要

首先推导了大跨空间结构几何非线性地震响应时程分析的计算过程,编制了相应的计算程序,然后重点对圆柱面交叉立体桁架系巨型网格结构进行几何非线性地震响应时程分析.针对主体结构单独承载及子结构参与协同承载两种情况,分析了立体桁架拱内关键节点及关键杆件的地震响应时程曲线,了解了结构基本地震响应时程特性;进行了不同方向地震波作用时程对比分析,论证了该结构抗震验算需考虑三维地震作用;最后将振型分解反应谱法与时程法结果进行了对比分析,说明了对于该结构,反应谱法可用作初步的抗震分析,但最终必须用时程法进行验算.
The computer formulations and the programs of geometrical nonlinear seismic responses of long span space structures subjected to earthquake waves were developed first. Then the geometrical nonlinear seismic time-history response behaviors of the cylindrical latticed-intersected-three-dimensional-beam-system (LITDBS) reticulated mega-structure were analyzed. The displacement time-history response curves of some key nodes and dynamic internal force time-history response curves of some key members in arched latticed 3d beams were investigated under both conditions of the main structure bearing the load by itself and cooperatively with substructures. Therefore the basic seismic time-history response property of the structure was obtained. Comparative analyses of the time-history response of the structure subjected to earthquake waves from different directions were carried out, which proved that three-component earthquake waves should be considered in seismic checking calculations of this structure. Lastly, the calculation results of vibration mode-decomposition-response-spectra method and time-history method were compared, from which the conclusion was drawn that the vibration mode-decomposition-response-spectra method could be used for preliminary analysis, but in the end, the time-history method must be used for the seismic checking calculation of this new structure.

引文

[1]　贺拥军.巨型网格结构的形体、静力及稳定性研究[D].杭州:浙江大学建工学院,2001.
    [2]　贺拥军,周绪红,董石麟.平板网架子结构圆柱面交叉立体桁架系巨型网格结构的研究[J].土木工程学报,2002,35(6):24-31.
    [3]　贺拥军.巨型网格结构的动力特性、地震响应及简化分析方法研究[R].长沙:湖南大学土木工程学院,2003.
    [4]　贺拥军,周绪红,董石麟.单层叉筒网壳静力与稳定性研究[J].湖南大学学报(自然科学版),2002,35(6):45-50.
    [5]　周岱,沈祖炎.斜拉网壳结构构件分析和非线性动力计算[J].土木工程学报,1999,32(6):40-46.
    [6]　ABDEL-GHAFFARAM,NAZMYAS.3-Dnonlinearseismicbehaviorofcable-stayedbridges[J].StructureEngineeringASCE,1991,117(11):3456-3476.
    [7]　沈聚敏,周锡元,高小旺,等.抗震工程学[M].北京:中国建筑工业出版社,2000.
    [8]　MARIOPAZ.Structuraldynamics:theoryandcomputation[M].NewYork:VanNostrand,1991.
    [9]　GB50011-2001,建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2001.