Deformed reinforcing bar, truss structure, and floor module structure

A truss structure, comprising:

• a strut member, being a reinforcing bar bended at intervals into a zigzag wave shape with a plurality of bending regions, the bending regions having outer vertices defining two parallel lines that intersect only the vertices;
• a top chord and a bottom chord, fixed to the outer vertices of the bending regions of the strut member;
• wherein the top chord and the bottom chord are a deformed reinforcing bar respectively, formed by a hot rolled process, and the deformed reinforcing bar comprises:
• a long steel bar, substantially round shape in cross-section, disposed with an accommodating recess on a circumference of the steel bar along a length direction, the accommodating recess has a structure, width and depth matching with an outer diameter of the strut member and enables an employment of a welding process to construct the truss structure;
• the deformed reinforcing bar has a plurality of transverse ribs on a surface of the steel bar along the length direction and separated with intervals, and a surface of the accommodating recess has a plurality of concave marks along the length direction and separated with intervals;
• a protruding rounded chamfer is disposed between each of two edges of the accommodating recess and the surface of the long steel bar;
• wherein the strut member has bending regions along the length direction fitted into the accommodating recess of the deformed reinforcing bar and welded to construct the truss structure.