装配式钢结构用单向螺栓的研究进展评述

Review on the Research Progress of Blind Bolts for Assembly Steel Structures

装配式钢结构设计关键是梁柱节点连接设计,其节点设计是否合理直接关系到整个结构的安全性和经济性。作为梁柱节点新型螺栓连接——单向螺栓连接,其广泛应用于封闭式截面构件连接。本文以单向螺栓为研究对象,主要探讨了螺栓受拉、受剪和拉–剪联合作用下的静力和抗震性能,并对其在梁柱节点方面的应用和研究现状进行了详细的总结和评述。最后,对单向螺栓连接节点有待深入研究的问题提出了建议。

The key to the design of fabricated steel structure is the design of beam-column joints.Whether the node design is reasonable is directly related to the safety and economy of the whole structure.As a new type of bolt connection for beam and column joints—blind bolt connection,it is widely used in closed section joints.In this paper,the blind bolts are taken as the research object,and the static and seismic performance of bolts under tension,shear and tension-shear are discussed.The application and research status of beam-column joints are summarized in detail.Finally,sugges-tions are made for the problem of blind bolted joints to be further studied.