Manufacturing Methods and Design Criteria for Simple Mechanical Joints in Rebar Trusses Utilized for RC Beams

This research introduces an analytical design for new simple mechanical joints in hybrid rebar truss reinforcement skeletons. These joints were created to address issues with eccentricity and truss diagonal cold bending commonly seen in the traditional hybrid rebar truss joints. These issues can lead to complex stresses and potential premature failure, particularly during the initial construction phase when the nude rebar truss skeleton must support its own weight, precast slabs, and fresh concrete loads before composite action is achieved. A detailed analytical framework based on design principles is presented, including verification guidelines and formulas for calculating joint capacities under various forces. This proposed method enhances load distribution stability and ensures the reliability of the truss structure until composite action with concrete is fully established.