钢结构钢材腐蚀疲劳损伤研究综述  

Summary of research on corrosion fatigue damage of steel structures

作　　者：魏欢欢 郑东东 陈晨 席培峰 万亮婷[1] WEI Huanhuan;ZHENG Dongdong;CHEN Chen;XI Peifeng;WAN Liangting(School of Architectural Engineering,Yangling Vocational&Technical College,Xianyang 712100,China;School of Civil Engineering&Architecture,Xi'an University of Technology,Xi'an 710048,China;School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710054,China;School of Civil Engineering,Chang'an University,Xi'an 710061,China)

机构地区：[1]杨凌职业技术学院建筑工程学院,咸阳712100 [2]西安理工大学土木建筑工程学院,西安710048 [3]西安建筑科技大学土木工程学院,西安710054 [4]长安大学建筑工程学院,西安710061

出　　处：《建筑结构》2022年第S02期1302-1306,共5页Building Structure

基　　金：杨凌职业技术学院2021年自然科学基金项目(ZK21-28)

摘　　要：长期处于极端复杂环境下的工程钢结构,若在循环往复荷载及随机荷载作用下,建筑体系的承重构件本身更易发生疲劳失效,并且采用传统设计方法时,往往难以满足实际工程结构的正常使用年限需求,致使结构构件的安全性与可靠性得不到确切保障。因此,通过介绍相关课题研究领域内工程结构腐蚀疲劳寿命较为常用的分析方法,即可分为基于经典断裂力学的疲劳分析方法和基于损伤力学的疲劳分析方法,对其具体使用范围进行介绍后,旨在将其推广应用于实际工程结构疲劳断裂失效的具体分析过程,以及相应的损伤理论分析中,最后为工程结构的疲劳设计及验算提供理论基础和科学依据。For long-term engineering steel structures in extremely complex environments, the load-bearing components of building system are prone to fatigue failures under cyclic reciprocating loads and random loads. And when traditional design methods are used, it is often difficult to meet the requirements of normal service life of the engineering structure, so that the safety and reliability of structural components cannot be accurately guaranteed. Therefore, by introducing the commonly used analysis methods for corrosion fatigue life of engineering structures in the research field of related topics, they can be mainly divided into fatigue analysis methods based on classical fracture mechanics and fatigue analysis methods based on damage mechanics. After a brief introduction of their specific scope of use, they are intended to be applied to the specific analysis process of fatigue fracture failure of actual engineering structures, as well as the corresponding damage theoretical analysis. Finally, it provides theoretical basis and scientific basis for fatigue design and checking calculation of engineering structures.

关 键 词：钢结构 极端复杂环境 往复荷载 疲劳失效 裂纹扩展 损伤力学 

分 类 号：TU391[建筑科学—结构工程]