Service Life Design for Concrete Engineering in Marine Environments of Northern China Based on a Modified Theoretical Model of Chloride Diffusion and Large Datasets of Ocean Parameters

作     者：Taotao Feng Hongfa Yu Yongshan Tan Haiyan Ma Mei Xu Chengjun Yue Taotao Feng;Hongfa Yu;Yongshan Tan;Haiyan Ma;Mei Xu;Chengjun Yue

作者机构：Department of Civil and Airport EngineeringNanjing University of Aeronautics and AstronauticsNanjing 211106China School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China College of Civil Science and EngineeringYangzhou UniversityYangzhou 225127China 

出 版 物：《Engineering》 (工程（英文）)

年 卷 期：2022年第17卷第10期

页      面：123-139页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0815[工学-水利工程] 0714[理学-统计学（可授理学、经济学学位）] 0813[工学-建筑学] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 0701[理学-数学] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：financial support provided by the National Natural Science Foundation of China(51508272 11832013 51878350 and 51678304) 

主　　题：Large datasets Modified theoretical model Reliability theory Service life Boundary condition Diffusion coefficient 

摘      要：In this study,through experimental research and an investigation on large datasets of the durability parameters in ocean engineering,the values,ranges,and types of distribution of the durability parameters employed for the durability design in ocean engineering in northern China were *** on a modified theoretical model of chloride diffusion and the reliability theory,the service lives of concrete structures exposed to the splash,tidal,and underwater zones were *** concrete proportions meeting the requirement of a service life of 100 or 120 years were designed,and a cover thickness requirement was *** addition,the effects of the different time-varying relationships of the boundary condition(Cs)and diffusion coefficient(Df)on the service life were compared;the results showed that the time-varying relationships used in this study(i.e.,Cscontinuously increased and then remained stable,and Dfcontinuously decreased and then remained stable)were beneficial for the durability design of concrete structures in marine environment.