摘要
大连国际会议中心15.30m标高平台周圈均为大悬挑结构形式,各会议厅也主要采用大跨度钢楼盖,对人行激励可能会非常敏感。而该建筑功能对舒适度的要求较高,所以需重视人行激励下的楼盖振动问题。本工程中较多地采用悬挑与大跨度的结构形式,所以楼盖的竖向振动就成为比较重要的问题。对结构自振特性做了初算,并进行了现场测试,根据现场测试结果调校模型,将加速度分析结果与实测结果进行比对。列出了各分区的自振特性,根据各分区的功能情况进行加速度分析,并将达沃斯会议厅随机振动分析的加速度情况和国际标准组织ISO的方法进行了比较。
The 15.30m-platforms of Dalian International Conference Center are large cantilevered structures,and the meeting rooms are mainly large-span steel floors,which are sensitive to human excitation.Due to the high comfort performance requirement of the building,the floor vibration problem is important.In this project,long-cantilever and long-span structures are adopted much more,so the vertical vibration of the floor is an important problem.The structural vibration characteristics were analyzed and the field test was done.Based on the test values,the model was adjusted and the acceleration results of analysis were compared with the test values.The vibration characteristic of every part was introduced,the acceleration analyses of the parts were done,and the random vibration results of the DCC was compared with the method proposed by ISO.
出处
《建筑结构》
CSCD
北大核心
2012年第2期58-65,共8页
Building Structure
关键词
楼盖振动
舒适度
自振特性
峰值加速度
floor vibration
comfort
vibration characteristic
peak acceleration
