摘要
某港口桁架桥为新建钢结构,为保证桥梁投入运营后的长期安全,对该桥进行了检测鉴定和评估工作,用以评定桥梁的实际工作状态以及桥梁的承载性能是否符合设计。检测工作采用现场静载试验与有限元建模计算分析相结合。本文对静载试验加载方案进行了设计,包括荷载工况和测点布置,然后进行了试验荷载下的桥梁结构有限元建模计算,得到了此次静载试验的校验系数,在此基础上对静载测试结果进行了理论分析。
A certain sight bridge is a new constructing steel structure.For ensuring long-term safety of the bridge after coming into use,some work of inspection,identification and appraisal are taken on it to appraise the actual working conditions of the bridge and the coincident degree between the actual carrying performance and that of design.The static tests in field are involved in this inspection combined with the FEA.Then loading test,including loading scenarios and measure point disposal is designed.After that,some important datum,such as the check coefficient of deflection,are obtained by the FEA of the structure of the bridge under standard design loads and testing loads,based on which theoretical analysis of test results are accomplished.
出处
《土木工程与管理学报》
2011年第1期76-79,共4页
Journal of Civil Engineering and Management
关键词
钢结构
静载试验
有限元分析
校验系数
steel structure
static loading test
finite element analysis
the check coefficient
