铝合金桥面板的耐腐蚀试验及寿命评估  

Experiment and Life Assessment on Corrosion Resistance of Aluminum Alloy Bridge Deck

作　　者：班慧勇[1] 王元清[1,2] 李吉勤 石永久[1,2] 张振学[4] 

机构地区：[1]清华大学土木工程系,北京100084 [2]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [3]中国建筑工程总公司,北京100037 [4]天津城建设计院有限公司,天津300073

出　　处：《建筑科学与工程学报》2011年第1期112-117,共6页Journal of Architecture and Civil Engineering

基　　金：教育部高等学校博士学科点专项科研基金项目(20090002110046)

摘　　要：通过对天津海河蚌埠桥铝合金桥面板进行耐腐蚀试验研究,总结出了一套可行的试验方法,并对其耐腐蚀寿命进行了评估。采用电化学试验方法进行铝合金桥面板耐腐蚀试验,模拟当地大气环境条件并测定其腐蚀速率,利用电镜观察铝合金的腐蚀形貌。结果表明:天津海河蚌埠桥铝合金桥面板的耐腐蚀性能良好,耐腐蚀寿命满足工程要求;所提出的耐腐蚀试验方法对今后的道路桥梁工程耐久性研究有一定的指导意义,试验结论也有利于促进铝合金材料在桥梁结构中的更广泛应用。The electrochemical test was conducted to get the corrosion rate and corrosion figures in the simulating atmospheric environments.The feasible test methods were proposed from the experimental research on the corrosion resistance of the aluminum alloy bridge deck of Tianjin Haihe Bengbu Bridge,and the life on corrosion resistance was assessed.The results show that the corrosion resistance behaviors of the aluminum alloy bridge deck of Tianjin Haihe Bengbu Bridge are qualified and the life on corrosion resistance can meet the project requirements.The test method proposed in the paper has practical guiding significance for future research on the durability of bridge engineering,and the conclusions are useful for the project application of aluminum alloy material in bridge structures.

关 键 词：铝合金 桥面板 耐腐蚀 寿命评估 腐蚀速率 

分 类 号：TU512.4[建筑科学—建筑技术科学]