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文章针对刚架拱桥常用加固方法,对某刚架拱桥建立空间有限元模型,分析不同加固方法对结构受力性能改善程度,从静力和动力特性两方面判断各加固方法的有效性,其理论成果对同类桥型的新桥设计和旧桥加固方案选择均有较好的借鉴作用。
Aiming at the common reinforcement method of rigid frame arch bridge, a finite element model of a rigid arch bridge is established. The improvement of the mechanical performance of the rigid frame arch bridge is analyzed. The validity of each reinforcement method is judged from the static and dynamic characteristics. The results of the bridge design for similar bridge and old bridge reinforcement options have a good reference.