【摘要】 采用现场试验的方法,从时域和频域角度分析了地铁列车通过时引起的与地铁合建建筑结构环境振动特性。研究结果表明:在地铁列车荷载作用下,合建建筑结构的振动幅值随距振源距离的增大而减小,横向振动响应幅值约为垂向振动响应幅值的0.8倍;合建建筑上部结构的振动频率分布特性基本上与地铁线路结构一致,主要集中在20~80 Hz;合建建筑结构横向环境振动水平虽总体上较垂向环境振动水平要小,但两者处于同一水平,甚至在部分频率范围内要比垂向环境振动水平还要高,横向环境振动对人们工作和生活的干扰不能忽视。更多还原

【Abstract】 Through field test,this paper studied environmental vibration characteristics of building structure integrated with subway structure caused by subway train passing from two angles of time domain and frequency domain. The results showed that vibration amplitude of integrated building structure decreases with the increase of vibration sources distance and transverse vibration response amplitude is about 0. 8 times vertical vibration response amplitude under the subway train loading,vibration frequency distribution characteristics of integrated building superstructure is basically consistent with subway line structure,which is mainly in the range of 20 to 80 Hz,transverse environment vibration level of integrated building structure is lower than vertical environment vibration level on the whole and both are on the same level,transverse environment vibration level is higher than vertical environment vibration level in some special frequency range,and the influence of transverse vibration on people’s life and work cannot be ignored.更多还原