中外港口工程混凝土结构可靠性设计对比  

Comparison of reliability design of Chinese and foreign port engineering reinforced concrete structures

作　　者：李荣庆[1] 侯永为 杨国平[1] LI Rong-qing;HOU Yong-wei;YANG Guo-ping(CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2021年第10期31-36,43,共7页Port & Waterway Engineering

摘　　要：为分析各国规范在结构可靠性设计方面的异同,选取欧洲、英国和美国规范,首先对结构可靠性设计的主要内容,即安全等级、结构设计使用年限、最小目标可靠指标、设计状况和极限状态设计表达式等进行对比分析;然后结合海外工程实例,按各国规范进行结构内力计算,并选取典型混凝土结构构件进行设计。结果表明,各国规范虽然都推荐了基于可靠性的概率极限状态设计方法,但在作用计算、分项系数、组合系数、设计表达式等方面均有所不同,按各国规范设计的结果存在差异。To analyze the differences of various national codes in reliability design regulations,we select European,British and American codes,and carry out a comparative analysis of the main contents of structural reliability design regulations,i.e.safety grade,design working life,the minimum target reliability index,design situations,as well as the limit state design expressions.Combining overseas engineering practice,we conduct structural internal force calculation and choose typical concrete structural members to design according to various codes.The results show that although all codes recommend the limit state design method based on reliability,there are differences in action calculation,partial factors,combination factors and design expression,resulting in different design results based on codes of different countries.

关 键 词：港口工程 结构设计 可靠性 

分 类 号：U65[交通运输工程—港口、海岸及近海工程]