地铁所致成都博物馆振动全过程性能化研究  

Performance-based study on whole process of metro induced vibration of the Chengdu Museum

作　　者：葛家琪[1] 王毅 张玲[1] 马伯涛[1] 石建权 杨维国[3] 王萌[3] 

机构地区：[1]中国航空规划建设发展有限公司,北京100120 [2]成都博物院,四川成都610000 [3]北京交通大学土木与建筑学院,北京100044

出　　处：《建筑结构学报》2015年第2期27-34,共8页Journal of Building Structures

基　　金：中国航空规划建设发展有限公司技术项目(技12技-1);中央高校基本科研业务费专项资金资助项目(2011JBM260)

摘　　要：列车运行引起的振动通过周围地层传播,会引起附近地下结构以及邻近建筑物的二次振动,从而对建筑物的使用性能产生影响。以成都博物馆为背景,结合相关参数建立"隧道-周围土体-结构底板-上部结构"整体有限元分析模型,计算博物馆的振动响应,结合振动控制标准对分析结果进行评价并与实测结果对比,定量分析结构的振动响应。分析结果表明:博物馆建筑物地上部分及地下部分的振级和竖、横向加速度峰值,与实测结果基本吻合,均满足振动控制标准;靠近隧道侧结构设置跨度33 m悬挑区,增长了传播路径,具有良好的减振效果。The vibrations caused by train operation and transmitted through stratum around,lead to secondary vibration of the nearby underground structures and adjacent buildings. This kind of vibration has a great impact on service level performances of buildings. Based on Chengdu Museum project, the numerical model of coupled ‘tunnel-soilfoundation-building'was established with related parameters. The vibration performances of museum building caused by rail traffic were analyzed. The analysis results of museum were evaluated with the proposed vibration control criteria and compared with actual measured results to discuss the service level performance quantitatively. The results show that: the vibration level,the peak vertical and horizontal accelerations of the museum superstructure and underground part satisfy the proposed criteria; setting up a cantilever near the tunnel has a good damping effect.

关 键 词：地铁振动 博物馆 性能化研究 

分 类 号：TU311.3[建筑科学—结构工程]