摘要
以16 m跨径的T梁桥标准图为基础,按1:4的缩尺比例,采用焊接钢板的连接方法设计了一座5片T梁桥模型。通过不同的钢板连接方式,对横向连接损伤对翼缘刚接T桥梁桥承载能力的影响进行了试验和有限元分析,研究了不同损伤工况对翼缘刚接T梁桥荷载横向分配的影响。提出了活载横向分布调整系数,为现实中的T梁桥承载能力评估、加固提供定量的评判标准,为损伤状态下刚接梁桥的体系可靠性评估提供借鉴。
At present,in rigid-jointed concrete T-beam bridges,there are some diseases such as transverse connection is weak or degenerating.Those problems have become an important factor limiting the bearing capacity.So the effect of damaged transverse connection to rigid-jointed concrete T-beam bridges is researched through model experiment and finite element analysis.On the basis of standard drawing of 16 m T-beam bridge,one 4 m prefabricated concrete model T-beam bridge by using of welding steel plate is designed.The impacts of different condition for transverse load distribution are discussed.And live load adjustment coefficient is put forward,which can provide quantitative evaluation standard for bearing capacity evaluation and strengthening,and provide reference for system reliability assessment in the practical rigid-jointed beam bridges.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第1期169-173,共5页
Journal of Wuhan University of Technology
基金
西部交通建设科技项目(200531822316
200631822302-04)
关键词
桥梁工程
横向连接损伤
混凝土T梁桥
刚接
活载横向分布调整系数
bridge engineering
damaged transverse connection
T-beam bridge
rigid-jointed
live load adjustment coefficient
