昆明新国际机场航站楼基础隔震设计及抗震性能分析
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摘要
昆明新国际机场航站楼是目前世界上最大的隔震建筑之一。对隔震层的布置方案进行了详细地阐述,建立了航站楼的有限元模型并进行动力反应分析。对昆明新国际机场航站楼进行了振动台试验研究,试验中模型结构的缩比为1/60,隔震层也进行了相应的简化布置。试验结果表明,隔震结构的减振效果能达到50%。最后对原型结构进行了抗震性能分析,探讨了原型结构在不同水准地震作用下的动力特性、加速度和位移反应,并与试验结果相对比,有限元分析结果与试验结果吻合较好。理论与试验证明,昆明新国际机场航站楼隔震机理清晰且隔震效果良好,大跨结构应用基础隔震技术是有效的。
The Kunming new international airport terminal is one of the world's largest seismic isolation buildings at present.The layout scheme of the seismic isolation layer was described in detail.The finite element model of the terminal was established and the dynamic responses were analyzed.The shaking table test on the structural model with 1/60 scale factor and simplified layout was carried out.The results show the vibration-reduction effect of the seismic isolation building is about 50%.Further,the seismic performances of the prototype structure were analyzed numerically.Dynamic characteristics,acceleration responses and displacement responses of the prototype structure were investigated under different levels of earthquake.Comparing with the shaking table test's results,it is shown that the finite element analysis results are in good agreement with the experimental results.The Kunming new international airport terminal has clear isolation mechanism and good isolation effect with the theoretical and experimental proof.It is feasible and effective for applying the base isolation technology to long-span structures.
The Kunming new international airport terminal is one of the world's largest seismic isolation buildings at present.The layout scheme of the seismic isolation layer was described in detail.The finite element model of the terminal was established and the dynamic responses were analyzed.The shaking table test on the structural model with 1/60 scale factor and simplified layout was carried out.The results show the vibration-reduction effect of the seismic isolation building is about 50%.Further,the seismic performances of the prototype structure were analyzed numerically.Dynamic characteristics,acceleration responses and displacement responses of the prototype structure were investigated under different levels of earthquake.Comparing with the shaking table test's results,it is shown that the finite element analysis results are in good agreement with the experimental results.The Kunming new international airport terminal has clear isolation mechanism and good isolation effect with the theoretical and experimental proof.It is feasible and effective for applying the base isolation technology to long-span structures.
引文
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[2]徐忠根,周福霖.我国首栋橡胶垫隔震住宅楼动力分析[J].世界地震工程,1996,(1):38-42.
[3]樊剑,唐家祥.滑移隔震结构的动力特性及地震反应[J].土木工程学报,2000,33(4):11-16.
[4]刘伟庆,董军,王曙光.等.宿迁市文体综合馆基础隔震设计[J].建筑结构学报,2003,24(2):20-24.
[5]朱玉华,吕西林.组合基础隔震系统地震反应分析[J].土木工程学报,2004,34(4):76-81.
[6]黄海生,王柏生.基础隔震建筑非线性动力响应的时程计算方法[J].振动与冲击,2005,24(3):50-52.
[7]刘伟庆,王曙光,林勇.宿迁市人防指挥大楼隔震设计方法研究[J].建筑结构学报,2005,26(2):81-86.
[8]胡聿贤.地震工程学(第二版)[M].北京:地震出版社,2006.
[9]周福霖.工程结构减震控制[M].北京:〗地震出版社,1997.
[10]杜东升,王曙光,刘伟庆,等.高层建筑组合隔震的设计方法与应用[J].东南大学学报:自然科学版,2010,40(5):1039-1046.
[11]中华人民共和国国家标准.建筑抗震设计规范(GB50011-2010)[M].北京:中国建筑工业出版社,2010.
[12]周华明.土木工程结构试验与检测[M].南京:东南大学出版社,2002.
[13]北村春幸.基于性能设计的建筑振动解析[M].裴星洙,廖红建,译.西安:西安交通大学出版社,2004.
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