斜弯T梁桥横隔板配筋优化研究  

Research on Reinforcement Optimization of Intermediate Diaphragm in Skew Curved T-Beam Bridge

作　　者：张林海 杨帆 郑福民 ZHANG Linhai;YANG Fan;ZHENG Fumin(Shaoxing Shangyu Transportation Group Co.,Ltd.,Shaoxing 312399,Zhejiang,China;Zhejiang Highway and Water Transport Engineering Consulting Group Co.,Ltd.,Hangzhou 310031,Zhejiang,China)

机构地区：[1]绍兴市上虞区交通集团有限公司,浙江绍兴312399 [2]浙江公路水运工程咨询集团有限公司,浙江杭州310031

出　　处：《工程技术研究》2024年第16期17-19,164,共4页Engineering and Technological Research

基　　金：浙江省交通运输工程建设科研项目(2023-GCKY-02)。

摘　　要：为研究多种跨径斜弯T梁桥的横隔板力学性能,优化横隔板的配筋布置,文章针对T梁跨径、T梁结构形式及中隔板布置方式,采用桥梁博士建立梁格模型开展横隔板受力分析。研究表明,25 m、30 m、40 m长的跨梁桥斜交30°T梁正布横隔板与正交T梁正布横隔板易出现最大不利荷载和最大裂缝,采用不同布置方式的横隔板力学性能有一定的差异,但其选配配筋接近,在实际设计中按最不利情况选配钢筋,既可保障结构安全,又能提高工程经济效益。该研究成果可为同类型的斜弯桥设计提供参考。In order to study the mechanical properties of intermediate diaphragms of various span skew curved T-beam bridges and optimize the reinforcement layout of intermediate diaphragms,this paper uses the Dr.Bridge to establish a grillage model to carry out the stress analysis of intermediate diaphragms aiming at the T-beam span,T-beam structural form and the intermediate diaphragm layout.The research shows that the normal intermediate diaphragms of skew 30°T-beams and orthogonal T-beams of 25 m,30 m and 40 m long span beam bridges are prone to the maximum adverse load and the maximum crack,and the mechanical properties of the intermediate diaphragms with different layout methods are different,but their reinforcement selection is close to each other.In the actual design,the reinforcement is selected according to the most unfavorable situation,which can not only ensure the safety of the structure,but also improve the economic benefits of the engineering.The research results can provide reference for the design of the same type of skew curved bridge.

关 键 词：斜弯桥 横隔板 配筋优化 横隔板布置 弯矩 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]