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预应力夯实组合拱桥以其优越的经济性和合理的受力性能,在我国进行了广泛的推广,但由于当时设计和施工经验不足,以及近些年来公路交通量的剧增和道荷载等级的提高使得相当大一部分预应力桁式组合拱桥受到不同程度的损伤。目前,对这些损伤桥梁的病害处治就显得迫在眉睫。为了研究预应力桁式组合拱桥病害发生的原因及处治方法,本文以某大桥为例,对桥梁结构进行了相关的现场检测、结构整体和局部建模分析、病害处治设计和加固后桥梁静载试验验证等工作,以期对比寻找良好的病害处治设计方法,为以后的桥梁病害处理提供理论依据经验借鉴。
Prestressed rammed composite arch bridge with its superior economy and reasonable force performance in China has been widely promoted, but due to lack of design and construction experience at that time, as well as in recent years the surge in road traffic and road load level Increasing a considerable part of the prestressed truss composite arch bridge suffered different degrees of damage. At present, the treatment of these damaged bridges is imminent. In order to study the causes of the prestressed truss composite arch bridge disease and its treatment methods, this paper takes a bridge as an example, the site structure of the bridge were detected, the whole structure and local modeling analysis, disease treatment design and reinforcement of static load after the bridge Experimental verification and other work, with a view to find a good comparison of disease treatment and design methods for the treatment of bridges to provide a theoretical basis for experience and lessons learned.