摘要
结构的耐久性退化是一个随机性很强的过程,退化结构的检修问题都涉及时变结构可靠度的计算。本文介绍了退化钢筋混凝土结构的抗力衰减模型及相关不确定性统计参数,分析了钢筋混凝土结构锈蚀受弯构件的抗力衰减规律。最后运用时间综合分析法计算了钢筋混凝土受弯构件锈蚀的时变可靠度。
Material deterioration and structural damage are inevitable under the effects of man- made environment and natural environment during long- term use of structures. The accumulation of damages can directly result in degeneration of structural performance and gradually weaken the resistance of structure. Therefore,it is of great significance to predict the durability of reinforced concrete structure. This study emphatically introduced reinforced concrete structure resistance decrease model and related statistical parameters of uncertainty,analyzed resistance decrease rules of corroded bending element of reinforced concrete structure,and finally calculated time- dependent reliability of the corroded bending element of reinforced concrete structure,aiming to provide a specific theoretical basis for the application of time- dependent reliability theory.
出处
《贵阳学院学报（自然科学版）》
2016年第3期44-46,共3页
Journal of Guiyang University：Natural Sciences
基金
江苏省九三学社科技创新项目基金(项目编号:YHK1408)
江苏省江豪专项资助项目基金(项目编号:1503)
关键词
结构耐久性
钢筋混凝土
退化
Durability of structure
reinforced concrete
degeneration
