Statistical Analysis of Typical Environmental Zoning and Service Life of Concrete for Highway Bridges in China

Abstract

Based on the investigation and analysis of the current situation and changing trend of China's environment, and on the basis of systematic analysis of the impact mechanism of various environmental factors on the durability of concrete structures, the durability environmental zoning index of concrete structures is proposed, and typical environmental zoning is carried out in the scope of the bridge concrete structure in our country. Finally, the life of the 7875 level VI bridges investigated is calculated and the conclusion is drawn that there is no obvious correlation between the actual service life of the bridge and the structure form or the scale of the bridge.