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

Abstract

The K-type joint of neo-epoxy resin concrete assembled truss studied herein is made of
neo-epoxy resin concrete, which is connected by chord member, web member and joint plate
through the bolt. Truss joint constitutes a key part of the truss structure system. The bolt
end-to-end distance studied herein is the distance between the bolt and the joint plate edge
which is very important to joint. This paper clarifies the key factors such as joint design, basic
assumptions and loading methods, establishes finite element models of K-type joint of
neo-epoxy resin concrete assembled truss under three different bolt end-to-end distances,
conducts finite element analysis to study the effect of bolt end-to-end distance on the stress state
of the K-type joint web member, chord member, joint plate, steel bar and bolt of the neo-epoxy
resin concrete assembled truss, and forms analysis conclusions to optimize the K-type joint
design of the neo-epoxy resin concrete assembled truss and lay the foundation for follow-up
experimental study on relevant joints.