大跨复杂屋面组合结构协同工作动力性能研究
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摘要
以甘肃省庆阳体育馆工程为背景,利用大型有限元分析软件ANSYS对有、无下部结构的复杂空间网壳进行了动力特性分析;对整体结构在三维EL-Centro波作用下进行了动力时程分析;同时考虑不同阻尼比和地震波对整体结构抗震性能的影响.结果表明,考虑下部结构作用时,屋盖结构的位移显著增大,部分节点位移增幅达50%,因此,实际工程设计时应充分考虑整体协同工作对大跨复杂空间结构整体性能的影响.
Take Qingyang gymnasium in Gansu province as study background in this paper.Using finite element software of ANSYS program,the complex spatial shell with sub-structure or not is analyzed under natural vibration;Dynamic response under the effect of 3-dimension El-Centro wave and Taft wave is analyzed;and analyze the influence of different damping radio,different seismic input to its overall performance.It is shown,when considering the interaction between lattice shell and substructure the joint displacement of the reaf structure are enlarged nearly 50%.Therefer,We could consider the fluencies of cooperative performance to large-span complex spatial structure in the structural design.
Take Qingyang gymnasium in Gansu province as study background in this paper.Using finite element software of ANSYS program,the complex spatial shell with sub-structure or not is analyzed under natural vibration;Dynamic response under the effect of 3-dimension El-Centro wave and Taft wave is analyzed;and analyze the influence of different damping radio,different seismic input to its overall performance.It is shown,when considering the interaction between lattice shell and substructure the joint displacement of the reaf structure are enlarged nearly 50%.Therefer,We could consider the fluencies of cooperative performance to large-span complex spatial structure in the structural design.
引文
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[8]何放龙,马自克.强震作用下双层球面网壳结构非线性动力响应分析[J].湖南大学学报,2007,34(10):1-5.HE Fang-long,MA Zi-ke.Nonlinear analysis of double layer reticulated spherical dome under strong earthquake motions[J].Journal of Hunan University,2007,34(10):1-5.
[2]曹资,张超,张毅刚,等.网壳屋盖与下部支承结构动力相互作用研究[J].空间结构,2001,7(2):19-26.CAO Zi,ZHANG Chao,ZHANG Yi-gang,et al.A study on the dynamic interaction between lattice shells and the supportingstructures[J].Spatial Structures,2001,7(2):19-26.(in Chinese)
[3]王秀丽,陈继云,闫志刚.考虑下部结构影响的单层组合网壳地震反应分析[J].工业建筑,2007,37(增刊):933-936.WANG Xiu-li,CHEN Ji-yun,YAN Zhi-gang.Seismic response of single layer combined reticulated shell considering thesubstructure[J].Industrial Building,2007,37(Supp.):933-936.(in Chinese)
[4]陈应波,陈军明.网壳结构与下部结构协同工作的研究[J].华中科技大学学报,2004,32(3):49-53.CHEN Ying-bo,CHEN Jun-ming.Study of the cooperative effect between reticulated shell and supporting structure[J].J.Huazhong Univ.of Sci.&Tech,2004,32(3):49-53.(in Chinese)
[5]曹资,薛素铎.空间结构抗震理论与设计[M].北京:科学出版社,2005:20-30.
[6]王秀丽,王磊.边界支承对复杂网壳性能的影响[J].工业建筑,2008,38(增刊):711-715.WANG Xiu-li,WANG Lei.Boundary supporting effect on the properties of the complicated shell[J].Industrial Building,2008,38(Supp.):711-715.(in Chinese)
[7]郭海山,钱宏亮,沈世钊.地震作用下单层球面网壳结构的动力稳定性[J].地震工程与工程振动,2003,23(1):31-35.GUO Hai-shan,QIAN Hong-liang,SHEN Shi-zhao.Dynamic stability of single layer reticulated domes under earthquakeexcitation[J].Earthquake Engineering and Engineering Vibration,2003,23(1):31-35.(in Chinese)
[8]何放龙,马自克.强震作用下双层球面网壳结构非线性动力响应分析[J].湖南大学学报,2007,34(10):1-5.HE Fang-long,MA Zi-ke.Nonlinear analysis of double layer reticulated spherical dome under strong earthquake motions[J].Journal of Hunan University,2007,34(10):1-5.
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