【摘要】 现有研究多关注地下地铁振动对场地或相邻地上结构的影响，而对于地下结构直接相连的上盖建筑振动问题讨论较少。以某地下地上一体化轨道交通综合体结构为背景，采用数值模拟方法，从时域和频域角度研究了地铁诱发其上盖框架结构的振动特性，并讨论了钢弹簧整体浮置隔振的隔振效果。结果表明：地铁运行对其上盖框架结构的振动影响较大，钢弹簧整体浮置隔振能够显著减小上盖框架结构的振动反应，且隔振效果在高频频段内显著，而在较低频率处(3Hz附近)隔振后结构振动反应有所放大。更多还原

【Abstract】 The existing research pays more attention to the influence of underground subway vibration on the site or adjacent upper structure, but there is less discussion on the vibration of the upper building directly connected to the underground structure.Taking an underground and aboveground integrated rail transit complex structure as the background, the numerical simulation method was used to study the vibration characteristics of the upper frame structure induced by the subway from the perspective of time domain and frequency domain, and the vibration isolation effect of the overall floating vibration isolation of the steel spring was discussed.The results show that the subway operation has a great influence on the vibration of the upper frame structure.The overall floating vibration isolation of the steel spring can significantly reduce the vibration response of the upper frame structure, and the vibration isolation effect is significant in the high frequency band.At the lower frequency( near 3Hz), the vibration response of the structure is amplified after vibration isolation.更多还原