Finite Element Analysis on the Effect of Bolt Diameter on K-type Joint of Neo-Epoxy Resin Concrete Assembled Truss

Abstract

Joint is quite important for the truss structure system. If it is damaged, the structural system will be damaged regardless of good members. In this study on neo-epoxy resin concrete assembled truss, with K-type joint as the representative joint, the effect of bolt diameter on K-type joint of the neo-epoxy resin concrete assembled truss is investigated to optimize the joint design. This paper introduces the theoretical research basis such as selection of joint connection mode, selection of loading mode, the basic design requirements and the basic analysis hypotheses. By establishing finite element models on K-type joint of neo-epoxy resin concrete assembled truss under three different bolt diameters and making ABQUS finite element simulation analysis, the impact of bolt diameter on the stress state of the K-type joint web member, chord member, joint plate and steel bar of the neo-epoxy resin concrete assembled truss is studied to provide optimal design recommendations for bolt diameter, thus laying the foundation for optimizing K-type joint design of neo-epoxy resin concrete assembled truss.