CAJ | 학술논문

为了研究铁路高架车站不同区域的环境振动规律，针对某客运专线高架车站，分别在轨道梁跨中、办公间、候车厅布置了三向振动测点，测试了高速动车组以正线速度通过时高架车站内不同区域的环境振动水平，从振动加速度时程、振动加速度级、频谱三方面分析了试验数据；利用车-线-桥耦合振动理论，研究了轨道梁动力响应和列车走行性．研究结果表明：办公间的Z振级达80．7 dB，超出规范限值0．7 dB；高架车站环境振动以竖向为主；办公间竖向振动持时比水平振动长15％；候车厅楼板的横向振动比轨道梁振动持时长1．03 s；振动在由轨道梁向车站楼板传递的过程中，高频振动比低频衰减快．
위료연구철로고가차참불동구역적배경진동규률，침대모객운전선고가차참，분별재궤도량과중、판공간、후차청포치료삼향진동측점，측시료고속동차조이정선속도통과시고가차참내불동구역적배경진동수평，종진동가속도시정、진동가속도급、빈보삼방면분석료시험수거；이용차-선-교우합진동이론，연구료궤도량동력향응화열차주행성．연구결과표명：판공간적Z진급체80．7 dB，초출규범한치0．7 dB；고가차참배경진동이수향위주；판공간수향진동지시비수평진동장15％；후차청루판적횡향진동비궤도량진동지시장1．03 s；진동재유궤도량향차참루판전체적과정중，고빈진동비저빈쇠감쾌．
In order to study the environmental vibration in different regions of elevated stations, measuring points for measuring the vibration in three directions (x,y,and z)were deployed to the mid-span of track beam,office,and waiting room of an elevated station in a passenger dedicated railway. When high-speed EMUs (electric multiple units)passed the elevated station at the main line speed,the environmental vibration in different regions of the station was tested,and experimental data on the time histories,levels,and frequency spectra of vibration accelerations were analyzed. According to the vehicle-track-bridge coupling theory,the dynamic response of the track beam and the running performance of trains were investigated. The results show that the Z-weighted vibration level of the office reaches 80. 7 dB,0. 7 dB higher than the code limit;and the vertical vibration dominates the environmental vibration of the elevated station. The duration of the vertical vibration at office center is 15% longer than that of the horizontal vibration;and the duration of the horizontal vibration of the waiting room is 1. 03 s longer than that of the track beam. In addition,the high-frequency vibration attenuates faster than the low-frequency vibration during the propagation from the track beam to the station floor.