复合主拱圈加固石拱桥的承载力计算模式研究  

Study on computing model for the bearing capacity of the stone arch bridge strengthened by composite main arch circle method

作　　者：庞国栋[1] 周建廷[1] 李跃军[2] 

机构地区：[1]重庆交通大学,重庆400074 [2]湖南省交通科学研究院,湖南长沙410015

出　　处：《重庆交通学院学报》2006年第B06期16-18,27,共4页Journal of Chongqing Jiaotong University

基　　金：重庆市重大科技攻关项目(CSTC2005AA6010);交通部西部交通建设科技项目(200431878518)资助

摘　　要：在分析复合主拱圈技术加固石拱桥后主拱圈极限状态的过程中,考虑了加固结构二次受力的特点和新旧结构不同材料的力学性能,按照承载能力极限状态计算原则推导出了加固后石拱桥的承载力计算模式,以供加固设计时参考.Based on the twice-force state of the strengthened structure and the mechanical properties of new-old materials ,the ultimate state of the main arch circle strengthened by composite main arch circle of the stone arch bridge method is analysed. And the computing model for the bearing capacity of the strengthened stone arch bridge in the principle of the structure ultimate state is figured out, which is available for reference to the engineering design.

关 键 词：复合主拱圈 石拱桥 极限应变 承载力 

分 类 号：U448.32[建筑科学—桥梁与隧道工程]