【摘要】 随着铸造技术的发展和材料性能的提高,采用铸钢的节点连接形式不断在工程中得到应用,国内外部分学者通过试验方法研究了铸钢节点的各项性能,并将其推广到钢框架梁柱连接中。介绍了钢框架梁柱连接形式的发展、现阶段节点设计的主要问题、各种形式节点的优缺点、铸钢材料特性及工艺特点、铸钢节点及连接件的优势、国内外的研究现状及取得的成果。研究表明,与传统连接方式相比较,设计者对铸件的形状和尺寸有很大的设计选择自由,其适应性和可变性最强,并且避免了焊接残余应力和应力集中。和铸钢节点相比,铸钢件应用灵活、连接方便,体型小巧,造价低廉。铸钢件在钢结构框架连接中拥有巨大的研究价值和应用潜力。更多还原

【Abstract】 With the improvement of casting and material technology,cast steel joints are continuously used in practical engineering projects.Domestic and foreign scholars studied the performance of cast steel joints by experiment or the other methods and extended them to beam-column connections in steel frames.This paper mainly introduced the development of beam-column connection forms,the main problems in joint design,advantages and disadvantages of the joints with various forms,material properties and manufacturing process characteristics of cast steel,advantages of cast steel joints and fasteners,research status and achievements at home and abroad.The results show that compared with traditional connection forms,designers have full freedom to choose the shapes and the sizes,and this kind of steel joints has the best adaptability and changeability in different engineering practice,what’s more,they have no problems with welding residual stress and stress concentration.Compared with cast steel joints,casting steel fasteners have more advantages such as flexible application,convenience of connections,small volume,low cost.In a word,casting steel fasteners have great research value and application potentials in connections of steel frames.更多还原