摘要
随着城市化进程的逐步加快。地铁作为城市中一种地下轨道交通工具,在发展迅速的同时不可避免会对工程结构以及人体舒适度造成振动影响。深入开展地铁运行诱发邻近场地和建筑物振动研究,对于实际工程中距离地铁线路较近的高层建筑及场地振动影响分析,有重要的理论意义和工程实用价值。以天津地铁5号线某一临近高层建筑为例,探究地铁运行对邻近场地及高层建筑的振动影响。首先采用有限元分析软件ABAQUS,建立地铁隧道-场地-建筑结构的三维耦合模型,模拟计算近似得到地铁运营情况下的场地、高层建筑响应;然后在该运营线路附近开展环境振动实测,将现场地铁环境振动影响测试结果同有限元模型结果对比验证模型的正确性;最后通过改变建筑物-地铁隧道水平距离这一重要参数,采用控制变量法研究参数变化对场地及高层建筑振动的影响。
With the gradual acceleration of urbanization process.As a kind of underground rail transportation in the city,the subway will inevitably cause vibration effects on building structure and human comfort while developing rapidly.It is of great theoretical significance and engineering practical value to carry out in-depth research on the vibration of adjacent sites and buildings induced by subway operation,and to analyze the vibration impact of high-rise buildings and sites close to subway lines in practical projects.Taking a nearby high-rise building of Tianjin Metro Line 5 as an example,this paper explores the vibration impact of subway operation on adjacent site and high-rise building.Firstly,a three-dimensional coupled model of subway tunnel-site-building structure is established by using the finite element analysis software ABAQUS,and the response of the site and high-rise buildings under subway operation is simulated and calculated approximately;Then,environmental vibration measurements were carried out near the operating line,and the accuracy of the model was verified by comparing the on-site subway environmental vibration impact test results with the finite element model results;Finally,by changing the important parameter of the horizontal distance between the building and the subway tunnel,the influence of parameter changes on the vibration of the site and high-rise buildings is studied by using the control variable method.
作者
赵盾
丁永君
ZHAO Dun;DING Yongjun(Tianjin University Research Institute of Architectural Design and Urban Planning Co.,Ltd.,Tianjin 300073,China)
出处
《建筑结构》
北大核心
2023年第S01期708-715,共8页
Building Structure
关键词
地铁运行
振动影响
人体舒适度
高层建筑
subway operation
vibration effects
human comfort
high-rise building
