首页 | 官方网站   微博 | 高级检索  
     

减小高速列车荷载对地面结构损害的数值分析
引用本文:孙伟,王建国,姜绍飞.减小高速列车荷载对地面结构损害的数值分析[J].爆炸与冲击,2009,29(2):155-161.
作者姓名:孙伟  王建国  姜绍飞
作者单位:1.沈阳建筑大学土木工程学院,辽宁 沈阳 110168;
基金项目:新加坡国防科技局基金,重庆大学西南资源开发及环境灾害控制工程教育部重点实验室访问学者基金 
摘    要:用数值模拟的方法研究无填充壕沟、注水壕沟和砼填充壕沟对地表高速列车荷载引起振动的防护能力。运用LS-DYNA软件,对高速列车荷载作用下地面结构所产生的动力响应进行数值分析。通过数值模拟计算发现,无填充壕沟和注水壕沟可以明显降低地面结构关键点上的加速度与应力幅值,而砼填充壕沟并无明显降低结构中关键点上的加速度与应力值。对于地表高速列车荷载引起的地面结构振动,无填充壕沟与注水壕沟都有明显的防护作用,而砼填充壕沟的防护作用不明显。

关 键 词:固体力学    衰减效应    数值分析    地面结构    瑞利波    无填充壕沟    注水壕沟    砼填充壕沟

Reduction of high-speed train-induced building vibrations by protective trenches
SUN Wei,WANG Jian-guo,JAING Shao-fei.Reduction of high-speed train-induced building vibrations by protective trenches[J].Explosion and Shock Waves,2009,29(2):155-161.
Authors:SUN Wei  WANG Jian-guo  JAING Shao-fei
Affiliation:1.School of Civil Engineering, Shenyang Jian Zhu University, Shenyang 110168, Liaoning, China;2.Centre for Protective Technology, National University of Singapore, Singapore 119260, Singapore;3.State Key Laboratory of China Southwest Resource Exploitation and Environmental Disaster Control Engineering, Chongqing University, Chongqing 400030, China;4.School of Civil Engineering, Fuzhou University, Fuzhou 350002, Fujian, China
Abstract:Numerical analyses for structure-soil interaction were carried out to investigate the attenuation effect of open,inundated water and concrete-filled trenches on high-speed train loading-induced Rayleigh wave propagation.The acceleration and effective stress at some key points of a six-storey surface structure were comparatively studied with commercial software LS-DYNA for the protection of open trenches,inundated water trenches,concrete-filled trenches and no protection.Numerical results reveal that open tr...
Keywords:solid mechanics  attenuation effect  numerical analysis  surface structure  Rayleigh wave  open trench  inundated water trench  concrete-filled trench  
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《爆炸与冲击》浏览原始摘要信息
点击此处可从《爆炸与冲击》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号