高速铁路站桥一体高架车站无砟轨道减振研究  

Vibration Attenuation Study of Slab Track for Integral Elevated Station-Viaduct Structure in High-speed Railway

作　　者：王启好 蔡小培[1] 郄录朝 侯博文[1] 汤雪扬 高梓航 王继 WANG Qihao;CAI Xiaopei;QIE Luchao;HOU Bowen;TANG Xueyang;GAO Zihang;WANG Ji(School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Railway Line and Station D&R Institute,China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [3]中国铁路设计集团有限公司线路站场枢纽设计研究院,天津300308

出　　处：《铁道学报》2024年第6期119-128,共10页Journal of the China Railway Society

基　　金：国家自然科学基金(52178405);中央高校基本科研业务费(2023JBZX030);中国铁道科学研究院集团有限公司科研项目(2021YJ051);浙江省交通投资集团有限公司智慧交通研究分公司科研项目(202204)。

摘　　要：为进行站桥一体高速铁路车站振动控制,以减振CRTSⅢ型板式无砟轨道为研究对象,采用落轴试验、现场行车测试和有限元动力仿真相结合的方法,分析轨道减振效果并预测车站最大振动。结果表明:高速铁路车站区段铺设减振轨道不会影响行车安全,隔振垫刚度为0.03 N/mm^(3)时可实现轨道动力响应和减振效果的均衡;减振轨道振动控制效果显著,落轴试验最大分频插入损失为32.9 dB,车站行车测试总插入损失可达11.4 dB;铺设减振轨道后站台及候车厅振动均满足鼓励值要求,高架候车厅比地面候车厅振动约增大4 dB;建议在高速铁路车站区段,尤其是在列车不停站通过情况下,铺设减振CRTSⅢ型板式无砟轨道。To control the vibrations of the integral elevated station-viaduct structure induced by high-speed trains,a CRTSⅢslab track with a vibration attenuation design was proposed.The vibration attenuation effects and the maximum vibrations of the station were predicted and analyzed by finite element simulations,wheel-drop tests,and field operational tests.The results show that the laying of the vibration attenuation tracks along the elevated stations of high-speed railway will not affect train operation safety.The trackpad stiffness of 0.03 N/mm^(3)can well balance the vibration attenuation and the dynamic response of the track.The vibration control effect of the vibration attenuation track is remarkable with a maximum frequency division insertion loss of 32.9 dB in wheel-drop tests,and a total insertion loss of 11.4 dB in field operational tests.After the use of the vibration attenuation track,the vibrations of the platform and waiting hall meet the requirements of the encouraging values with vibrations of the waiting hall on the elevated floor being 4 dB greater than the ground waiting hall.It is recommended to lay the vibration attenuation track in the elevated station section of the high-speed railway,especially in the case of trains passing through the station without stopping.

关 键 词：高速铁路 站桥一体 减振轨道 动力仿真 现场测试 

分 类 号：U213.2[交通运输工程—道路与铁道工程]