【摘要】 以天河机场交通中心工程为背景,结合建筑物主体结构和钢结构屋盖形式,充分考虑地震和轨道列车的作用,介绍了隔震方案的可行性和必要性,采用ETABS建立地上结构模型,分析结构在地震波和人工波作用下的动力特性。通过分析列车振动激励下结构加速度响应,分析不同激励下的减震效果。结果表明,采用组合隔震技术后,隔震层剪力、水平地震力、竖向加速度均大幅下降,减震效果显著。同时,通过对隔震支座的合理设计、施工控制和监测分析,隔震支座的减震效果达到了预定的质量目标。更多还原

【Abstract】 This paper takes the construction of Tianhe Airport Transportation Center project for example,combined with the main building structure and the type of steel structure roof,considering the effect of rail train and earthquake vibration,the feasibility and necessity of the isolation scheme are introduced,structure model is built by using ETABS,the dynamic characteristics of structure in seismic wave and artificial wave are analysed. Through study on the response of structure acceleration in subway vibration,this paper analyzes damping effect under different excitations. The results show that the shear,horizontal and vertical acceleration of the seismic isolation layer are greatly reduced with the combined isolation technology,and the effect of shock absorption is remarkable. At the same time,through the reasonable design,construction control and monitoring analysis of the isolation bearing,the effect of the isolation support achieves the predetermined quality goal.更多还原