摘要
为保证某景区人行玻璃索桥的安全运营,通过桥梁表观检查,有限元建模分析,荷载工况设计,现场加载测试,对桥梁进行了静载试验。通过桥梁自振特性有限元分析和基于脉动法的桥梁动力特性测试对桥梁动力性能进行了试验和分析,并对桥梁的动力刚度进行了研究。最终根据试验结果对桥梁的安全性进行了评估。结果表明,该人行玻璃索桥在满足设计要求的试验荷载作用下刚度和强度满足规范和设计要求,结构基本处于弹性工作状态,受力和工作性能满足安全使用的要求。
In order to ensure the safe operation of a pedestrian glass suspension bridge in a scenic spot.The static load test of the bridge was carried out by means of the bridge apparent inspection,finite element modeling analysis,load working condition design and field loading test.The dynamic performance of bridge is tested and analyzed by finite element analysis of bridge self vibration characteristic and dynamic characteristic test of bridge based on pulsating method,and the dynamic stiffness of bridge is analyzed.Finally,the safety of the bridge is evaluated based on the test results.The results show that the stiffness and strength of the glass suspension bridge can meet the specifications and design requirements under the test load,while the structure is basically in the flexible working state,and the stress and the working performance meet the requirement of safe use.
作者
代建波
吕刚
张仁猛
粟海涛
韩嘉昕
DAI Jianbo;LV Gang;ZHANG Renmeng;SU Haitao;HAN Jiaxin(Xi＇ an Sldyou University,Xi＇ an,Shaanxi 710065,China;Shaanxi Zhongli Testing and Appraisal Co.,Ltd.,Xi＇ an,Shaanxi 710077,China)
出处
《水利与建筑工程学报》
2018年第4期16-20,共5页
Journal of Water Resources and Architectural Engineering
基金
陕西省教育厅专项科研计划项目(15JK1562)
陕西省教育厅重点实验室科研计划访问学者项目(14JS045)
榆林市科技计划项目(2016-29)
关键词
索桥
静载试验
动载试验
有限元分析
安全评估
suspension bridge
static load test
dynamic load test
finite element analysis
safety assessment
