| 基于现场耐久性检测的承台海工混凝土寿命预测 |
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| 引用本文： | 李顺凯,刘可心,秦明强,屠柳青,孙同兴.基于现场耐久性检测的承台海工混凝土寿命预测[J].混凝土,2008(11). |
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| 作者姓名： | 李顺凯 刘可心 秦明强 屠柳青 孙同兴 |
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| 作者单位： | 中交武汉港湾工程设计研究院有限公司,长大桥梁建设施工技术交通行业重点实验室,湖北,武汉,430071 |
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| 摘 要： | 金塘大桥受恶劣的海洋气候环境和海水腐蚀影响严重,其结构设计基准期为100年.根据现场对大桥已建部分承台混凝土检测的保护层厚度、表面氯离子浓度和氯离子扩散系数等耐久性参数,以Fick第二定律为基础的理论模型对混凝土结构抵抗氯离子侵蚀耐久寿命进行预测.此研究成果可为氯盐侵蚀环境下混凝土结构耐久性设计与评估提供参考.
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| 关 键 词： | 金塘大桥 耐久性检测 海工混凝土 寿命预测 |
Service life prediction of platform marine concrete based on spot durability inspection |
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| LI Shun-kai,LIU Ke-xin,QIN Ming-qiang,TU Liu-qing,SUN Tong-xing.Service life prediction of platform marine concrete based on spot durability inspection[J].Concrete,2008(11). |
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| Authors: | LI Shun-kai LIU Ke-xin QIN Ming-qiang TU Liu-qing SUN Tong-xing |
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| Affiliation: | Key Lab of Large-span Bridge Construction Technology;Ministry of Communications;Wuhan Harbour Engineering Design& Research Institute Co.Ltd of CCCG;Wuhan 430071;China |
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| Abstract: | Designed service life of Jintang bridge is over 100 years because the execrable ocean climate and the seawater's erode.Protection layer thickness,surface chloride concentrations and diffusion coefficient of concrete in constructed bridge platform were inspected.Considering inspection results,durable life of concrete structures was predicted by theoretical model on the basis of the second Fick's law.The results can be taken as a useful reference to concrete durability design and assessment of concrete struct... |
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| Keywords: | Jintang bridge durability inspection marine concrete service life prediction |
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