水立方空间钢架结构的地震载荷动力学分析和振动控制
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摘要
地震载荷是影响复杂空间钢架结构稳定性的一个重要因素。以北京水立方多面体空间钢架结构为例,借助SAP2000有限元分析软件,对国家游泳中心空间钢架结构采用扩展模态法进行模态分析,得出其结构固有振动特性。通过建立地震载荷模型和加载分析扩缩,针对整体模型和模型局部节点进行动力学分析,表明地震载荷下水立方空间钢架结构具有良好的稳定性和抗震性,并且在此模型基础上进行阻尼减震控制,通过与控制前的模型进行时程分析,验证得出水立方空间钢架结构具有良好的振动控制性能。
The seismic load is an important factor that affects the stability of the complex space frame structure. This paper takes Beijing Water Cube's polyhedron space steel frame structure as an example,and by means of SAP2000 finite element analysis software,adapts the extended-mode method for modal analysis of space steel frame structure to derive its structural natural vibration characteristics.Through the establishment of seismic loads and loads analysis scaling model,it does dynamic analysis of the whole model and the model for local node,showing that the water cube space steel structure under seismic load keeps good stability and shock resistance. And damping control performs on Water cube model,proving that water cube space steel structure has good vibration control performance through pre-model control time-history analysis.
The seismic load is an important factor that affects the stability of the complex space frame structure. This paper takes Beijing Water Cube's polyhedron space steel frame structure as an example,and by means of SAP2000 finite element analysis software,adapts the extended-mode method for modal analysis of space steel frame structure to derive its structural natural vibration characteristics.Through the establishment of seismic loads and loads analysis scaling model,it does dynamic analysis of the whole model and the model for local node,showing that the water cube space steel structure under seismic load keeps good stability and shock resistance. And damping control performs on Water cube model,proving that water cube space steel structure has good vibration control performance through pre-model control time-history analysis.
引文
[1]徐文毅.水立方多面体空间钢架结构与ETFE膜结构探讨[J].警学学报,2009,25(8):86-89.
[2]卢明奇,田玉基,杨庆山.近断层地震作用下高层建筑结构地震响应分析[J].哈尔滨工业大学学报,2007,39(2):314-317.
[3]傅学怡,杨先桥.游泳中心“水立方”结构设计优化[J].建筑结构学报,2005,25(6):13-19.
[4]卜红亮.地震下建筑结构动力响应有限元时程分析[D].合肥:合肥工业大学,2011.
[5]宋彧,陈好,宋武.扶壁柱几何参数对砖混结构抗震性能影响分析[J].兰州理工大学学报,2014,40(2):128-132.
[6]朱祖超.超低比转速高速离心泵的理论研究及工程实现[J].机械工程学报,2000,36(4):30-33.
[7]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[8]裴星洙,汪玲.附加阻尼的悬挂式巨型框架复合支撑体系地震响应分析[J].振动与冲击,2011,30(11):190-197.
[2]卢明奇,田玉基,杨庆山.近断层地震作用下高层建筑结构地震响应分析[J].哈尔滨工业大学学报,2007,39(2):314-317.
[3]傅学怡,杨先桥.游泳中心“水立方”结构设计优化[J].建筑结构学报,2005,25(6):13-19.
[4]卜红亮.地震下建筑结构动力响应有限元时程分析[D].合肥:合肥工业大学,2011.
[5]宋彧,陈好,宋武.扶壁柱几何参数对砖混结构抗震性能影响分析[J].兰州理工大学学报,2014,40(2):128-132.
[6]朱祖超.超低比转速高速离心泵的理论研究及工程实现[J].机械工程学报,2000,36(4):30-33.
[7]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[8]裴星洙,汪玲.附加阻尼的悬挂式巨型框架复合支撑体系地震响应分析[J].振动与冲击,2011,30(11):190-197.
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