某文艺中心钢连廊人致振动舒适度试验及评价

Test and evaluation of human induced vibration comfort of steel truss corridor in Jiaxing culture and art center

以嘉兴市文化艺术中心项目钢桁架连廊平台为工程背景,进行了结构动力特性测试及分析,通过结构动力特性的分析结果发现,行人的运动频率对结构振动结果的影响比较大。为确保项目结构舒适度效果,对不同频率下的连廊平台动力特性进行了多组现场测试,并对测试结果进行了分析。受试验场地条件限制,个别工况下少数点的加速度峰值超过限值,除此之外,加速度响应峰值及均方根值均能满足规范要求。

Taking the steel truss corridor platform of Jiaxing culture and art center project as the engineering background,the structural dynamic characteristics are tested and analyzed in this paper.Through the analysis results of structural dynamic characteristics,it is found that the pedestrian motion frequency has a great impact on the structural vibration results.In order to ensure the structural comfort effect of the project,several groups of field tests on the dynamic characteristics of the corridor platform under different frequencies are carried out,and the test results are analyzed.Limited by the conditions of the test site,the peak acceleration of a few points under individual working conditions exceeds the limit value.In addition,the peak acceleration response and root mean square value can meet the specification requirements.