PTH factory building structure is mainly composed of horizontal structure and vertical structures. The horizontal structure system is bent (including roof truss, beam, and column) as the basic bearing structure, to bear the roof under load, horizontal wind load, earthquake action, vertical load, and horizontal level of crane load. Between the longitudinal structure, the system is made up of columns, column support beams, walls, etc. In addition, there are houses, walls, and roof support, to form a space-rigid frame.