摘要
不同结构形式对地铁振动的响应不同,文中通过现场振动测试,对比分析了地铁轨道在弹簧浮置板减振措施下,地铁运行时地铁站台和下穿建筑物的振动响应。通过分析超高层建筑桩筏基础和低层建筑筏板基础的振动响应,总结出了不同基础形式和上部结构的减振效果。结果表明桩筏基础对减小地铁振动产生的竖向加速度有较好的效果,优于筏板基础,通过1/3倍频程分析法得到的两种结构下产生的环境振动均小于标准规定的噪声限值。
Different structural forms have different responses to the subway vibration.This paper compares and analyzes the vibration response of subway platform and underpass building under the measures of vibration reduction of the subway track with the spring floating plate.By analyzing the vibration response of pile-raft foundation and low-rise building raft foundation,the vibration reduction effects of different foundation forms and superstructures are summarized.The results show that pile raft foundation has a better effect on reducing the vertical acceleration caused by subway vibration,comparing with raft foundation.Moreover,the environmental vibration of the two structures obtained by 1/3 frequency path analysis method is less than the noise limit specified in the standard.
作者
王韵超
王思崎
郑茗旺
郑凌逶
谢新宇
WANG Yunchao;WANG Siqi;ZHENG Mingwang;ZHENG Lingwei;XIE Xinyu(Research Center of Coastal and Urban Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China;NingboTech University,Zhejiang Ningbo 315100,China;Institute of Wenzhou,Zhejiang University,Zhejiang Wenzhou 325035,China)
出处
《低温建筑技术》
2021年第3期51-54,59,共5页
Low Temperature Architecture Technology
关键词
地铁
振动
站台
振动响应
subway
vibration
platform
vibration response
