多点输入下大跨空间网格结构的强度破坏研究
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摘要
考虑了材料非线性,对大跨空间网格结构在多点和一致输入下进行动力响应分析。通过对极限加速度峰值、最大节点位移时程、塑性杆件数量和分布及网壳破坏形态这些重要参数的统计、对比、分析和归纳,剖析了大跨空间网格结构在多点输入和一致输入下的强度破坏机理。
The elastoplastic dynamic behaviors of space lattice structures are thoroughly analyzed under multiple support excitation and simple support excitation.Some important parameters such as the utmost peak value of acceleration,time history of high-point displacement,the amount and distribution of elements under plastic,the deformation of shell in ruins are counted,contrasted,analyzed and concluded.Based upon these results,the rules of strength fracture about space lattice structure are studied under multiple support excitation and simple support excitation.
The elastoplastic dynamic behaviors of space lattice structures are thoroughly analyzed under multiple support excitation and simple support excitation.Some important parameters such as the utmost peak value of acceleration,time history of high-point displacement,the amount and distribution of elements under plastic,the deformation of shell in ruins are counted,contrasted,analyzed and concluded.Based upon these results,the rules of strength fracture about space lattice structure are studied under multiple support excitation and simple support excitation.
引文
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[2]Kim Uksun.Seismic behavior of steel joist girderstructure[M].Georgia Institute of Technology,2003.
[3]Carassalel Tubino F,Solari G.Seismic response ofmulti-supported structures by proper orthogonal de-composition[A].In:Proc Int Conf on Advances inStructural Dynamics(ASD2000)[C].HongKong:El-sevier science Ltd,2000.827—834.
[4]Ye Jihong.Simulation of multiple-station ground mo-tion[A].The Ninth International Symposium onStructural Engineering for Young Experts[C].Sci-ence Press,China,August 2006.2 219—2 224.
[5]孙景江,江近仁.与规范反应谱相对应的金井清谱的谱参数[J].世界地震工程,1990(1):28—40.
[6]张锦虹,陈扬骥.双层圆柱面网壳的抗震性能研究[J].同济大学学报,1998,26(5):498—502.
[7]Harichandran R S,Vanmarke J.Stochastic variationof earthquake ground motion in space an time[J].Journal of Engineerjing Mechanics,1986,112(4):154—174.
[8]Prage W,Hodge P G.Theory of Perfectly PlasticSolids[M].New York:John wiley,1951.
[9]Desai C S,Abel J F.Introduction to the Finite Ele-ment Method[M].New York:Van Nostrand Co,1972.
[10]Shinji Tanimura,Koji Mimura.Dynamic failure ofstructure due to the great Hanshin-Awaji earthquake[J].International Journal of Impact Engineering,2000,(24):583—596.
[11]Li Xing.Effect of periodic gasketon periodic cracks[J].Engineering Fracture Mechanics,1993,46(1):127—131.
[12]Clough R W,Penzien J.Dynamics of structures(sec-ond edition)[M].McGRAW-HILL International edi-tions,1993.
[13]梁嘉庆.大跨度空间结构在非一致地震输入下的弹性响应分析[D].南京:东南大学,2004.
[14]董贺勋.多点输入下空间网格结构拟静力位移影响分析及可靠度分析[D].南京:东南大学,2005.
[15]孙建梅.多点输入下空间结构抗震性能和分析方法的研究[D].南京:东南大学,2005.
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