严寒地区公路桥梁混凝土结构耐久性问题与设计  

Durability Problem and Design of Concrete Structures for Highway Bridges in Severe Cold Areas

作　　者：许德龙[1] Xu Delong(Heilongjiang Forestry Design and Research Institute,Harbin 150080,China)

机构地区：[1]黑龙江省林业设计研究院,哈尔滨150080

出　　处：《林业科技情报》2024年第3期168-170,共3页Forestry Science and Technology Information

摘　　要：该文总结了严寒地区公路桥梁混凝土结构常见的耐久性问题,比如,冻融破坏、冻裂破坏、碱-集料反应、钢筋锈蚀和化学腐蚀等,并逐一分析耐久性问题产生的原因,从而采取针对性设计以提高混凝土结构的耐久性。This article summarizes the common durability problems of highway bridge concrete structures in severe cold areas,such as freeze-thaw damage,frost crack damage,alkali aggregate reaction,steel corrosion,chemical corrosion,etc.,and analyzes the causes of durability problems one by one.Targeted design is adopted to improve the durability of concrete structures.

关 键 词：耐久性 冻融破坏 碱-集料反应 钢筋锈蚀 化学腐蚀 

分 类 号：U447[建筑科学—桥梁与隧道工程] U446.3[交通运输工程—道路与铁道工程]