公路混凝土桥梁病害分析与技术建议

Analysis of Highway Concrete Bridge Diseases and Technical Recommendations

混凝土公路桥梁在我国交通运输事业建设中占据着无法替代的重要地位,但在长期使用过程中,由于自然因素、交通量增加、车辆超载等一系列原因,桥梁承载能力和耐久性出现不同程度的降低。以某条公路的40座桥梁作为研究对象,对其进行详细的检测工作。首先根据桥梁类型、桥梁跨数、桥面宽度和桥梁长度对公路桥梁的特点进行了分析,然后对病害情况进行统计分析,发现翼墙、锥坡、混凝土结构表层、伸缩缝、桥面铺装和支座是最容易发生病害的部位,最后对主要病害的成因进行了分析,并提出适当的处理建议。

Concrete highway bridges occupy an irreplaceable and important position in the construction of transportation in China.However,in the process of long-term use,due to a series of reasons such as natural factors,increased traffic volume and vehicle overloading,the bridge bearing capacity and durability have been reduced to different degrees.In this paper,40bridges of a highway are used as the research object to carry out detailed inspection work.Firstly,the characteristics of the highway bridges were analyzed according to bridge type,bridge span,bridge deck width and bridge length.Then the statistical analysis of the disease situation was carried out,and it was found that wing walls,tapered slopes,concrete structure surface,expansion joints,bridge deck pavement and bearings were the most vulnerable parts.Finally,the causes of the major diseases were analyzed and appropriate treatment recommendations were made.