Exploration for environment influential factors and countermeasures of concrete structure durability in tunnels 隧道混凝土结构耐久性的环境影响因素及措施对策
Depended on gray systems theory , an assessment method of rc structure durability is summed up 根据灰色系统理论，总结了一套结构耐久性的评定方法? ?灰色综合评定法。
Furthermore the author set up a new assessment method of rc structure durability applying fuzzy theory 此外作者还应用模糊系统理论建立了一套结构耐久性评定的新方法? ?模糊综合评定法。
The research result shows that the corrosion of reinforcement is one of the dominating factor for decreasing the durability of reinforced concrete structures 摘要钢筋锈蚀是钢筋混凝土结构耐久性降低的主要因素之一。
Structure durability is a matter of systems engineering that involves many factors . these factors relate intricately and interact complexly 结构耐久性问题是一个包含了众多影响因素的系统工程问题，各因素的关系错综复杂，相互耦合作用。
The present research results are significant not only in the theoretical calculation and designs but also in the practical engineering for the durability of concrete structures 本论文的研究成果可为混凝土结构耐久性的设计计算提供理论依据,具有重要的工程应用意义。
Today how to make an assessment of durability and give a service life prediction have become two urgent tasks in the research of rc structure durability 如何对结构进行科学的耐久性评定和使用寿命预测，为在役结构的维修决策和新建结构的寿命设计提供依据，已成为当今钢筋混凝土结构耐久性研究的迫切任务。
This paper bases on a background of the sixth group researching subject of national concrete code project " and focus on the durable problems in active concrete code and practice 9 )为研究背景，针对现行混凝土结构规范和工程实践中的耐久性问题，主要研究氯离子对钢筋混凝土结构耐久性的影响及其寿命预测。
At the end reliability of concrete structures is calculated to durability design , and quality prevention mention is presented to enhance durability of coastal concrete structures 最后，通过沿海混凝土结构施工实例，对混凝土结构耐久性进行结构可靠度计算，并提出了提高沿海混凝土结构耐久性的质量预防措施。
The research progress of rc structure durability in the recent 10 years is summed up . the status quo of durability research of rc structures is presented in three levels of material , element and structure 总结了近十年来钢筋混凝土结构耐久性的研究进展，并从材料、构件和结构三个层次上论述了钢筋混凝土结构耐久性的研究现状。
