疲劳荷载作用下CFRP-钢粘结性能综述  

State-of-the-Art on the Interfacial Behaviour between CFRP and Steel Subjected to Fatigue Loading

作　　者：吕兆华 徐海斌 余倩倩[2] Lü Zhaohua;XU Haibin;YU Qianqian(Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092,China;Department of Structural Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092 [2]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2022年第5期177-181,共5页Structural Engineers

基　　金：国家自然科学基金资助项目(51878485)。

摘　　要：钢结构基础设施在服役过程中,受到荷载和环境介质的共同作用,往往产生裂纹、锈蚀等损伤。碳纤维增强复合材料(CFRP)轻质高强、耐疲劳和腐蚀性能好,在钢结构补强领域具有广泛的应用前景。在粘结加固体系中,CFRP-钢界面粘结性能是保证补强效果的关键。本文对疲劳荷载作用下CFRP-钢界面粘结性能的已有研究进展进行综述,包括试验工况、疲劳荷载下粘结节点的破坏模式、粘结强度、荷载—位移曲线和粘结—滑移曲线等,并总结了相关损伤模型。Deterioration of steel infrastructure due to service loads and environmental agents has been one of major concerns in civil engineering community. Carbon fiber-reinforced polymer(CFRP)materials have high strength-to-weight ratio,good resistance to fatigue and corrosion,and ease of installation. They are showing great promise in rehabilitation and strengthening of aging steel structures. In external bonding systems,the interfacial performance between CFRP and steel plays an important role to ensure the retrofitting efficiency.This paper presents a state-of-art on the CFRP-steel bond behavior when subjected to fatigue loading.Experimental scenarios,failure modes,bond strength,load-displacement curves,and bond-slip relationships from literature review are summarized and compared.

关 键 词：碳纤维增强复合材料 钢结构 疲劳荷载 粘结性能 

分 类 号：TU391[建筑科学—结构工程]