铁路桥梁支座防腐耐候性影响因素分析及强化措施研究  

Analysis on Influential Factors of Corrosion Resistance and Weatherability of Railway Bridge Bearing and Strengthening Measure Study

作　　者：佟嘉明[1] 臧晓秋[2] 石秋君[2] TONG Jiaming ZANG Xiaoqiu SHI Qiujun(China Academy of Railway Sciences, Beijing 100081, China Railway Engineering China Academy of Railway Sciences, Beijing 100081 , China)

机构地区：[1]中国铁道科学研究院,北京100081 [2]中国铁道科学研究院铁道建筑研究所,北京100081

出　　处：《铁道建筑》2017年第6期36-40,共5页Railway Engineering

基　　金：中国铁路总公司科技研究开发计划(2016G002-N)

摘　　要：以铁路桥梁支座的防腐耐候性影响因素及强化措施为研究背景,分析了现行桥梁支座防腐涂装体系的组成、涂装技术要求和涂装层的服役周期,探讨了涂装体系、涂装工艺、环境条件和人为因素对支座防腐耐候性的影响。结合海洋、工业、严寒、高温、高湿、风沙等不同大气环境下桥梁支座的使用要求,通过优化涂装体系,改善涂装工艺,采用铝合金钢和耐候钢代替普通结构钢的方案和措施,实现了强化桥梁支座防腐耐候性的目的,提高了桥梁结构的整体耐久性。Taking the influential factors of corrosion resistance and weatherability of railway bridge bearing and strengthening measures as research background,the composition of the existing bridge bearing anti-corrosion system,coating technology requirements and coating layer service cycle were analyzed,and the effects of the coating system,coating technology,environmental conditions and human factors on the corrosion resistance and weatherability of the bearings were discussed in this paper. Combination the requirements of bearing in different atmospheric environment of ocean,industry,cold,high temperature,high humidity,windy and sandy area,the purpose of strengthening corrosion resistance and weatherability of bearing was achieved and the durability of the whole bridge structure was improved by optimizing coating system and improving coating technology. At the same time,the measures of Aluminum alloy steel and weather resistant steel instead of ordinary structural steel have also been adopted.

关 键 词：铁路桥梁支座 防腐耐候性 强化措施 影响因素 涂装体系和工艺 

分 类 号：U443.362[建筑科学—桥梁与隧道工程]