青藏高原混凝土梁桥的常见病害及工程对策分析  

Analysis on Common Disease and Engineering Countermeasures for Concrete Girder Bridge in Tibetan Plateau

作　　者：李尧 刘厚元 郑康琳 孙彪 

机构地区：[1]西藏自治区公路局,西藏拉萨850000 [2]威海市公路管理局,山东威海264200 [3]交通运输部公路科学研究所,北京100088

出　　处：《西部交通科技》2016年第10期33-37,60,共6页Western China Communications Science & Technology

基　　金：国家自然基金(51109099)

摘　　要：为了给高原地区桥梁养护提供理论指导,针对高原独特的地理环境,文章从桥梁承受温湿度变化、紫外线辐射、季节性冻融交替频繁、多年冻土发育、泥石流频发和河床下切剧烈等高原环境特殊性的角度,选取混凝土桥梁在高原环境条件下运营过程中出现的病害特征进行分析,论述高原地区混凝土梁桥出现的病害机理,并提出了高原环境下桥梁养护和加固设计的相关对策。研究结果对高原地区桥梁养护和建设有一定的借鉴意义。In order to provide theoretical guidance for bridge maintenance in plateau region,then regarding the plateaus unique geographical environment,this article analyzed the disease characteristics arising during the operation of concrete bridges under plateau environment conditions from the perspectives of bridges withstanding the changes in temperature and humidity,ultraviolet radiation,frequently alternate seasonal freezing and thawing,permafrost development,frequent mudslides,and severe riverbed undercut etc,discussed the mechanism of concrete girder bridge diseases in plateau region,and proposed relevant countermeasures for bridge maintenance and reinforcement design under plateau environment.The research results have the reference significance for bridge maintenance and construction in plateau region.

关 键 词：高原环境 混凝土梁桥 病害分析 处置对策 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]