蜂窝状波阻块用于铁路高架桥环境振动的隔振效果研究  

Research on the Vibration Isolation Effect of Honeycomb Wave Impeding Block Used for Environmental Vibration Induced by Railway Viaduct

作　　者：胡晶晶 赵良 罗忆[3] HU Jing-jing;ZHAO Liang;LUO Yi(School of Architecture Engineering and Design,Wuhan Institute of Shipbuilding Technology,Wuhan 430050,China;CCCC Second Highway Consultants Co Ltd,Wuhan 430056,China;School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉船舶职业技术学院建筑与设计学院,武汉430050 [2]中交第二公路勘察设计研究院有限公司,武汉430056 [3]武汉理工大学土木工程与建筑学院,武汉430070

出　　处：《武汉理工大学学报》2024年第2期57-63,共7页Journal of Wuhan University of Technology

基　　金：湖北省教育厅科学研究计划指导性项目(B2022514).

摘　　要：为了研究蜂窝状波阻块(HWIB)对重载列车在高架桥上运行诱发的场地振动的隔振效果,运用有限元软件LS-DYNA建立了场地-波阻块-建筑物的三维分析模型,采用桥墩底部的振动响应作为场地的激励源,分析了蜂窝的填充方式、屏障区位置、桩长和填充材料等参数对HWIB隔振效果的影响。结果表明:地面振动在屏障区附近有放大,放大的幅度跟桩长和屏障区位置有关,3排填充比1排填充和不填充的隔振效果都要好,屏障区应该设置在合理的位置,距离桥墩太近和太远都不好,桩长12m比桩长6m的HWIB效果好,在远离屏障区时,橡胶填充的隔振效果更好。最后,合理设置隔振参数,将HWIB应用到神山高架桥附近的一层建筑的隔振上,对比发现,减振后建筑物监测点的振动幅值均降到限值以下。In order to study the isolation effect of honeycomb wave impeding barriers(HWIB)on site vibration induced by heavy-haul train operating on Railway Viaduct,a 3Dnumerical model of Site-HWIB-Building was established using finite element software LS-DYNA.The vibration response of the bridge pier was used as the excitation source of the site,the influence of parameters such as the filling method of the honeycomb,the position of the barrier area,the length of the pile,and the filling material on the vibration isolation effect of HWIB was analyzed.The results indicate that the ground vibration amplifies near the barrier area,and the amplitude of amplification is related to the length of the pile and the position of the barrier area.The vibration isolation effect of three rows of filling is better than that of one row of filling and no filling.The barrier area should be set in a reasonable position,and being too close or too far from the bridge pier is not good.The HWIB with a pile length of 12mis better than the pile length of 6m,and the rubber has a better vibration isolation effect when far from the barrier area.Finally,setting the vibration isolation parameters reasonably and applying HWIB to the one story building near Shenshan Viaduct,it was found that the vibration amplitudes of the building monitoring points decreased below the limit after vibration reduction.

关 键 词：环境振动 蜂窝状波阻块 有限元分析 振动响应 隔振参数 

分 类 号：TU443[建筑科学—岩土工程]