新型大跨度弦支穹顶结构的动力特性与抗震试验
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摘要
弦支穹顶结构是一种新型的预应力钢结构体系,适用于大跨度空间结构的屋盖.为了保证北京奥运会羽毛球馆新型大跨度弦支穹顶结构的抗震性能.利用北京工业大学的九子台阵系统完成了对9.3 m弦支穹顶结构模型的动力特性试验和振动台试验.试验测得模型的多阶自振频率、振型,得到了模型在竖直地震动作用下的加速度、位移、杆件应变、索轴力的响应及响应变化规律.试验结果表明弦支穹顶结构振型密集,在八度大震作用下,具有良好的抗震性能.
A suspend-dome structure is a new prestressed steel system,which is suitable for the roof of a big span structure.The experiment study on the anti-seismic performance of the new-type large span suspend-dome of badmiton Gympasiwm for 2008 Olympic Games is a guarantee to a large-scale public building.The dynamic feature and vibration table experiments of a 9.3 m suspend-dome structure model were conducted through the multiple vibration table array system in Beijing University of Technology.Dynamical features of the model were tested.The responses and rules of acceleration,displacement,stress of the structure,and force of cable under the earthquake were obtained.Results show that the structure has closely distributed modes,and has good anti-seismic performance under strong earthquakes at a magnitaude of eight.
A suspend-dome structure is a new prestressed steel system,which is suitable for the roof of a big span structure.The experiment study on the anti-seismic performance of the new-type large span suspend-dome of badmiton Gympasiwm for 2008 Olympic Games is a guarantee to a large-scale public building.The dynamic feature and vibration table experiments of a 9.3 m suspend-dome structure model were conducted through the multiple vibration table array system in Beijing University of Technology.Dynamical features of the model were tested.The responses and rules of acceleration,displacement,stress of the structure,and force of cable under the earthquake were obtained.Results show that the structure has closely distributed modes,and has good anti-seismic performance under strong earthquakes at a magnitaude of eight.
引文
[1]张爱林,葛家琪,刘学春.2008奥运会羽毛球馆大跨度新型弦支穹顶结构体系的优化设计选定[J].建筑结构学报,2007,28(6):1-9.ZHANG Ai-ling,GE Jia-qi,LIU Xue-chun.Optimizationand determination of prestressed suspend-dome system ofthe badminton gymnasium for 2008 Olympic Games[J].Journal of Building Structure,2007,28(6):1-9.(inChinese)
[2]北京工业大学,中国钢结构协会专家委员会.CECS212:2006预应力钢结构技术规程[S].北京:中国计划出版社,2006.
[3]刘学春,张爱林,王冬梅,等.2008奥运会羽毛球馆新型弦支穹顶结构模型静力试验研究[J].建筑结构学报,2007,28(6):58-67.LIU Xue-chun,ZHANG Ai-lin,WANG Dong-mei.Staticexperimental study on the model of the Suspend-dome ofthe badminton gymnasium for 2008 Olympic Games[J].Journal of Building Structure,2007,28(6):58-67.(inChinese)
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[5]张爱林,刘学春,王冬梅,等.2008奥运会羽毛球馆新型预应力弦支穹顶结构全寿命健康监控研究[J].建筑结构学报,2007,28(6):92-99.ZHANG Ai-lin,LIU Xue-chun,WANG Dong-mei,et al.Health monitoring of the prestressing suspend-dome of theBadminton gymnasium for 2008 Olympic Games[J].Journal of Building Structure,2007,28(6):92-99.(inChinese)
[6]张敏政,孟庆林,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震与加固改造,2003(4):31-35.ZHANG Min-zheng,MENG Qing-lin,LIU Xiao-ming.Astudy on the earthquake simulation test of buildingstructures[J].Earthquake Resistant Engineering andRetrofitting,2003(4):31-35.(in Chinese)
[7]张爱林,王冬梅,张国军,等.多次预应力拱桁架静立试验[J].建筑结构,2008,38(2):47-49.ZHANG Ai-lin,WANG Dong-mei,ZHANG Guo-jun,etal.Static load experimental multi-prestressed arch trussstring structure model[J].Building Structure,2008,38(2):47-49.(in Chinese)
[8]翟长海,谢礼立.抗震结构最不利设计地震动研究[J].土木工程学报,2005,38(12):55-62.ZHAI Chang-hai,XIE Li-li.The severest design groundmotions for seismic design and analysis of sructures[J].China Civil Engineering Journal,2005,38(12):55-62.(in Chinese)
[2]北京工业大学,中国钢结构协会专家委员会.CECS212:2006预应力钢结构技术规程[S].北京:中国计划出版社,2006.
[3]刘学春,张爱林,王冬梅,等.2008奥运会羽毛球馆新型弦支穹顶结构模型静力试验研究[J].建筑结构学报,2007,28(6):58-67.LIU Xue-chun,ZHANG Ai-lin,WANG Dong-mei.Staticexperimental study on the model of the Suspend-dome ofthe badminton gymnasium for 2008 Olympic Games[J].Journal of Building Structure,2007,28(6):58-67.(inChinese)
[4]张爱林,王冬梅,刘学春,等.2008奥运会羽毛球馆新型弦支穹顶结构模型动力特性试验及理论分析[J].建筑结构学报,2007,28(6):68-75.ZHANG Ai-lin,WANG Dong-mei,LIU Xue-chun,et al.Dynamic performance experiment and theoretical analysison the Suspend-dome structure model of badmintongymnasium for 2008 Olympic Games[J].Journal ofBuilding Structure,2007,28(6):68-75.(in Chinese)
[5]张爱林,刘学春,王冬梅,等.2008奥运会羽毛球馆新型预应力弦支穹顶结构全寿命健康监控研究[J].建筑结构学报,2007,28(6):92-99.ZHANG Ai-lin,LIU Xue-chun,WANG Dong-mei,et al.Health monitoring of the prestressing suspend-dome of theBadminton gymnasium for 2008 Olympic Games[J].Journal of Building Structure,2007,28(6):92-99.(inChinese)
[6]张敏政,孟庆林,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震与加固改造,2003(4):31-35.ZHANG Min-zheng,MENG Qing-lin,LIU Xiao-ming.Astudy on the earthquake simulation test of buildingstructures[J].Earthquake Resistant Engineering andRetrofitting,2003(4):31-35.(in Chinese)
[7]张爱林,王冬梅,张国军,等.多次预应力拱桁架静立试验[J].建筑结构,2008,38(2):47-49.ZHANG Ai-lin,WANG Dong-mei,ZHANG Guo-jun,etal.Static load experimental multi-prestressed arch trussstring structure model[J].Building Structure,2008,38(2):47-49.(in Chinese)
[8]翟长海,谢礼立.抗震结构最不利设计地震动研究[J].土木工程学报,2005,38(12):55-62.ZHAI Chang-hai,XIE Li-li.The severest design groundmotions for seismic design and analysis of sructures[J].China Civil Engineering Journal,2005,38(12):55-62.(in Chinese)
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