石拱桥加固方法及力学行为研究

分析石拱桥加固可行性及结构耐久性,提出一种新的复合式加固方法:用L形钢筋混凝土肋加固主拱。在对拱桥结构受力性能、加固维修方法进行广泛调查和归纳总结的基础上,以重庆市涪陵大溪河大桥为依托工程,分析其结构加固改造和施工方案,并对石拱桥主拱加固过程进行有限元分析及石拱桥加固前后的受力性能进行阐述。

Research on Methods and Mechanical Behavior of Stone Arch Bridge Reinforcement

Methods of stone arch bridge reinforcement emerging endlessly,the reinforcement is feasible and in-depth study of the durability of the structure after entering,puts forward a kind of new compound stone arch bridge reinforcement method：reinforcement of the main arch of L-shaped concrete rib.In this paper,the stress on the performance of arch bridge and reinforcement causes of repair method of extensive investigation and foundation of summary,in Chongqing City,Fuling Daxi River Bridge project,structure reinforcement scheme and construction scheme of research,and the stone arch bridge reinforcement process of finite element analysis for the mechanical performance and the stone arch bridge before and after reinforcementare described.