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.
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第11期260-265,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(50908115)
云南省科技计划项目(2008CA007)
关键词
昆明新国际机场
基础隔震建筑
大跨结构
振动台试验
Kunming new international airport
seismic isolation building
long-span structure
shaking table test
