摘要
为研究地铁振动对沿线单层砌体结构的动力影响,对北京某地铁线特定区间的单层砌体结构进行铅垂向和水平向振动加速度测试。同时,为研究不同距离处单层砌体结构的振动,对测试区街面进行铅垂向振动加速度测试。根据室内地面铅垂向计权振动加速度级,推出相同距离处街面铅垂向计权振动加速度级的修正量。由此,修正测得的不同位置街面铅垂向计权振动加速度级。最终,拟合得到地铁线不同距离处单层砌体结构室内地面铅垂向振动加速度级的分频计算公式。
In order to analyze vibration characteristics of the single-story masonry structures nearby metro lines,vertical and horizontal acceleration on the floor of the single-story masonry structure was tested in Beijing.Furthermore, the vertical acceleration of different positions on the street near the tested masonry structure was tested as well. Through the weighted acceleration levels on the floor of the tested masonry structure, the modified values between the tested masonry structure and the tested street were obtained. Based on the modified values, the weighted acceleration levels of different positions in the street were modified. Finally, the calculation formula was derived, which can calculate the floor vibration of the single-story masonry structure in different distances with the metro line.
作者
金浩
刘维宁
周顺华
袁扬
于凯文
JIN Hao;LIU Weining;ZHOU Shunhua;YUAN Yang;YU Kaiwen(Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China;School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;Tianjin Urban Planning and Design Institute, Tianjing 300201, China)
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2017年第2期325-331,共7页
Journal of Railway Science and Engineering
基金
国家自然科学基金资助项目(51478353)
关键词
地铁
振动测试
单层砌体结构
振动加速度
subway
vibration test
single-story masonry structure
vibration acceleration
