A steel bar truss is a prefabricated steel bar assembly component, which is formed by welding top chord steel bars, bottom chord steel bars and web steel bars through processes such as resistance spot welding, presenting a truss-type stress-bearing structure as a whole.

It is mainly used in conjunction with floor decking and formwork, and is widely applied to the floor, roof and wall systems of steel structure and cast-in-place structure buildings. It can work collaboratively with concrete to bear loads, enhancing the overall rigidity and load-bearing capacity of components. Meanwhile, it enables standardized factory production and rapid on-site installation, which significantly improves construction efficiency.