地铁列车运行对路基激振力频率特性研究
|
摘要
通过轮轨相互作用关系,建立由上部车辆与下部轨道两子系统组成的地车辆―轨道垂向耦合系统模型,分析了地铁列车运行引起的轨道路基激振力频率特性,讨论了其与建筑结构振动响应的关系以及相关的减振措施.分析结果表明,地铁列车运行对路基产生荷载一般在10 Hz以下,特别集中在5 Hz以内,主要表现为低频段,其频谱范围与一般建筑结构前几阶自振频率接近,容易诱发建筑结构的共振,从而放大结构的振动响应.
The vehicle-rail vertical coupling model,which consists of vehicle and rail systems,is established through the interaction between wheel and rail.The frequency characteristic of the motivation force acting on the subgrade induced by Metro vehicle,its relationship with the self-vibration characteristic of building structure,and the correlative damping measures are discussed.The results show that the motivation force ranges chiefly within 10 Hz,especially within 5 Hz.The frequency range is consistent with the natural vibration-frequency range of conventional building structure which is likely to induce the resonance of building structure and magnify the vibration responses.
The vehicle-rail vertical coupling model,which consists of vehicle and rail systems,is established through the interaction between wheel and rail.The frequency characteristic of the motivation force acting on the subgrade induced by Metro vehicle,its relationship with the self-vibration characteristic of building structure,and the correlative damping measures are discussed.The results show that the motivation force ranges chiefly within 10 Hz,especially within 5 Hz.The frequency range is consistent with the natural vibration-frequency range of conventional building structure which is likely to induce the resonance of building structure and magnify the vibration responses.
引文
[1]夏禾,吴萱,于大明.城市轨道交通系统引起的环境振动问题[J].北方交通大学学报,1999,23(4):1-6.
[2]日本噪声控制学会.地域的环境振动[M].日本:挤报堂出版株式会社,2001.
[3]张玉娥,白宝鸿.地铁列车振动对隧道结构激振荷载的模拟[J].振动与冲击.2000,19(3):68-70.
[4]雷晓燕.轨道力学与工程新方法[M].北京:中国铁道出版社,2002.
[5]翟婉明,林建辉,王开云.铁路道床振动的理论模拟与试验研究[J].振动程学报,2003,16(4):404-408.
[6]Fryba.Vibration of Solids and Structures under MovingLoads[M].Holland:NoordhoffInternational Publishing,1999.
[7]谢伟平,王国波,于艳丽.移动荷载引起的土变形计算[J].岩土工程学报,2004,26(3):318-322.
[8]克拉夫R,彭津J结构动力学[M].王光远,等.北京:高等教育出版社,2006.
[9]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.
[10]田春芝.地铁振动对周围建筑物影响的研究概况[J].铁道劳动安全卫生与环保,2000,27(1):64-67.
[11]Ju S H.Three-dimensional analysis of waves barriers forreduction oftrain-induced vibrations[J].Journal ofGeotech-nical and Geoenvironmental Engineering,2004,130(7):740-748.
[12]Takemiya H.Prediction of train/traffic induced ground vi-brations and mitigation by WIB[C]//Takemiya H.Environ-mental Vibrations:Prediction,Monitoring,Mitigation andEvaluation(ISEV2005).London:Taylor&Francis Group,2005:399-409.
[13]周福霖.工程结构减震控制[M].北京:地震工程出版社,1997.
[2]日本噪声控制学会.地域的环境振动[M].日本:挤报堂出版株式会社,2001.
[3]张玉娥,白宝鸿.地铁列车振动对隧道结构激振荷载的模拟[J].振动与冲击.2000,19(3):68-70.
[4]雷晓燕.轨道力学与工程新方法[M].北京:中国铁道出版社,2002.
[5]翟婉明,林建辉,王开云.铁路道床振动的理论模拟与试验研究[J].振动程学报,2003,16(4):404-408.
[6]Fryba.Vibration of Solids and Structures under MovingLoads[M].Holland:NoordhoffInternational Publishing,1999.
[7]谢伟平,王国波,于艳丽.移动荷载引起的土变形计算[J].岩土工程学报,2004,26(3):318-322.
[8]克拉夫R,彭津J结构动力学[M].王光远,等.北京:高等教育出版社,2006.
[9]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.
[10]田春芝.地铁振动对周围建筑物影响的研究概况[J].铁道劳动安全卫生与环保,2000,27(1):64-67.
[11]Ju S H.Three-dimensional analysis of waves barriers forreduction oftrain-induced vibrations[J].Journal ofGeotech-nical and Geoenvironmental Engineering,2004,130(7):740-748.
[12]Takemiya H.Prediction of train/traffic induced ground vi-brations and mitigation by WIB[C]//Takemiya H.Environ-mental Vibrations:Prediction,Monitoring,Mitigation andEvaluation(ISEV2005).London:Taylor&Francis Group,2005:399-409.
[13]周福霖.工程结构减震控制[M].北京:地震工程出版社,1997.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心