【作者】 王玉珏；

【导师】 马良筠；

【作者基本信息】 河海大学 ， 工程力学， 2004， 硕士

【摘要】 自从波特兰水泥问世以来，混凝土结构已经成为建设工程中最为常用的建筑形式之一。一百多年来，人们一直在研究对混凝土结构检测的技术，以期掌握混凝土结构在各种复杂环境下内部和外部的损伤情况，从而对混凝土结构的耐久性进行全面、综合并且准确地评估，让混凝土结构在服役期内更好地为社会服务。 本文首先对实际码头的数学模型进行假设检测，并与实际检测结果加以比较。另外，还通过采用现场量测法、回弹法、波速法等对码头结构进行材料性质检测，从而为码头耐久性的评估提供数据基础。 其次，从混凝土碳化、氯离子对结构的侵蚀、抗渗性与抗冻性、碱—集料反应和钢筋锈蚀几个方面入手，仔细分析了影响混凝土结构耐久性的主要因素，并提出了在各种条件下提高混凝土耐久性的方法。 提出了层次分析方法。该方法从子项、项目和单元入手，通过对整个混凝土结构进行单元划分，使评估易于进行，达到灵活、准确评估的目的。实际情况证明，这种方法值得在土木工程领域内工程技术人员之间进行推广。 最后，对实际工程结构进行了耐久性评估，并对其寿命进行预测。在总结中，就耐久性研究中目前还存在的问题和将来在这一领域中的发展方向提出了一些个人的观点。更多还原

【Abstract】 The concrete structure has been one of the most famous shapes in building construction as Potelan cement came out. For about one hundred years, people has been working on the technology of concrete examination in order to grasp the whole circumstances of inner and outer damage about concrete structure in all environment and assess the durability of concrete construction and make concrete construction serve the society safer and more economical.In this paper the mathematic model of a dock is examined at first, the result is compared with the date come from the test. Furthermore, the material of the dock has been tested by some means in order to provide some date for assessing the dock.Secondly, the paper carefully analyses the factors that influence the durability of concrete construction from some effects, such as carbonization, chloride, anti-freeze, anti-osmosis, alkali, erosion of reinforcing-bar, etc., and provide some methods to improve the durability of concrete construction.At last, the paper put forward a kind of method, called arrangement method, in order to assess the durability of the concrete construction more accurately and more conveniently.更多还原