摘要
提出了在对大型建筑物进行化整为零的分段分时环境振动测试时所采用的归总方法和有关问题，目的在于求得整座建筑物的正确振动模态．这一方法用于香港青马大桥的测试分析，取得了很好的结果．在为期一个月的分段测试中，工况多变，其中遇上大风雨时的测试结果与无风时的结果之比竟达数十倍．如不进行归总处理，就很难确认某阶模态，更谈不上获得正确的模态振型了．
A uniformization method for the modal analysis of an extra large construction is presented when this construction is divided into many parts and the ambient vibration measurements on each part is carried out on different date. This method aims at to obtain the correct vibration mode of a whole construction. The good results of vibration mode of Hong Kong Tsing Ma Bridge were acquired by using this method.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
1999年第1期28-33,共6页
Journal of Jinan University(Natural Science & Medicine Edition)
关键词
环境振动测试
模态分析
归总方法
建筑物
Ambient vibration measurement
modal analysis
uniformization method
