高强结构钢连接研究进展  

Progress of Research on High-Strength Structural Steel Connections

作　　者：李国强[1] Guoqiang Li(College of Civil Engineering,National Engeering Technology Research Center for Prefabrication Construction in Civil Engineering,National Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学土木工程学院,同济大学国家土建结构预制装配化工程技术研究中心,同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《钢结构（中英文）》2020年第6期1-40,共40页Steel Construction（Chinese & English）

基　　金：国家十三五重点研发计划项目(2017YFB0304701,2018YFC0705505);国家自然科学基金项目(51408428)。

摘　　要：高强钢用于钢结构可节省用钢量,降低钢结构制作、运输和安装成本。由于高强钢力学性能与普通钢具有不可忽视的差异,近年来国内外学者开展了大量的高强结构钢应用研究工作。高强钢结构在工程中应用除需进行合理的构件设计外,还需为高强钢构件之间设计高效的连接以形成安全、可靠的结构。对高强钢的两种重要连接方法(焊接和螺栓连接)的国内外研究进展情况进行了介绍,包括:高强钢对接焊缝连接承载性能研究、高强钢角焊缝连接承载性能研究、高强钢摩擦型螺栓连接承载性能研究、高强钢承压型螺栓连接承载性能研究及12.9级高强螺栓氢致延迟断裂研究等,并着重介绍了同济大学的有关研究进展,总结了现有研究进展,展望了今后的研究工作。The application of high-strength steel in steel structures can reduce steel consumption and increase the cost efficiency of steel structures in terms of welding work, transportation and installation. Due to the different mechanical properties between high-strength steel and normal-strength steel, domestic and foreign researchers have carried out a number of studies to support the application of high-strength steel in structures. In addition to the design of high-strength steel members, the efficient design of connections between high-strength steel members are also necessary for the successful application of the high-strength steel structure in engineering practice. This paper introduces the research progress of the two important connection methods, welded and bolted connections, of high-strength steel structures, including the research progress on load-bearing performance of high-strength steel butt welded joints and fillet welded joints, the bearing performance of slip-critical bolted connections and bearing-type bolted connections, as well as the resistance of Grade 12.9 high-strength bolts to hydrogen-induced delayed fracture(HIDF). The existing research conclusions and recent research progress in Tongji University are summarized and highlighted, and the prospection of future research work is presented.

关 键 词：高强钢结构 焊接连接 螺栓连接 研究进展 

分 类 号：TU391[建筑科学—结构工程]