摘要
玻璃桥面人行悬索桥整体结构较柔,高空桥梁振动和透明的玻璃易使人产生恐惧感,设置抗风缆是提高桥梁稳定性的必要措施。依托某新建的玻璃桥面人行悬索桥,运用有限元软件从结构的动力特性和振动舒适度两方面对设置和不设置抗风缆两种情况进行建模分析。结果表明:设置抗风缆可以增加结构刚度,提高玻璃桥面人行悬索桥各关键振型的频率。该桥梁的舒适度分析满足英国BS 5400规范要求,设置抗风缆对桥梁的竖向振动和舒适度没有显著的作用。
The overall structure of pedestrian suspension bridge with glass deck is floxible,bridge vibration and transparent glass of high altitude are easy to cause fear,and wind resistant cable is the necessary measure to improve the stability of the bridge.Based on a newly built pedestrian suspension bridge with glass deck,the finite element software was used to model and analyze the dynamic characteristics and vibration comfort of the structure in the case of if there was wind resistant cable.The results showed that setting wind resistant cable could increase the structural stiffness and improve the frequency of each key vibration mode of the pedestrian suspension bridge with glass deck.The comfort analysis results could satisfay the British BS 5400 specification.The wind resistant cable had no significant effect on the vertical vibration and comfort of the bridge.
作者
崔又文
李睿
徐征
李晓章
CUI Youwen;LI Rui;XU Zheng;LI Xiaozhang(Faculty of Civil Engineering,Kunming University of Science and Technology,Kunming 650504,China;Yunnan Broadvision Engineering Consultants,Kunming 650031,China)
出处
《钢结构（中英文）》
2019年第11期86-90,共5页
Steel Construction（Chinese & English）
基金
国家自然科学基金项目(51568029)
云交科技项目(2012-1-(B)04)
关键词
抗风缆
玻璃桥面人行悬索桥
动力特性
舒适度
wind resistant cable
pedestrian suspension bridge with glass deck
dynamic characteristics
comfort
