桥梁耐久性设计方法和关键问题探究

Design Methods and Critical Issues on Bridge Durability

耐久性是影响桥梁使用寿命的关键因素。论文总结了桥梁耐久性设计方法,阐述了其详细的设计过程;针对梁体开裂、混凝土碳化、氯离子侵蚀、冻融循环等关键耐久性问题,分析了其机理与特点,并给出了解决对策和方法,促进桥梁的耐久性设计理念。

Durability is a critical issue affecting the service life of bridges. Durability design methods of bridges are summarized first. Then, detailed processes of conducting durability design are analyzed. Finally, based on several durability issues such as component crack, concrete carbonation, chloride attack, and freeze-thaw cycle, their mechanisms and features are analyzed. Corresponding, countermeasures and methods are also presented, so as to promote the durability design concept o fbridges.