ARRANGEMENT STRUCTURE, VERTICAL JOINT STRUCTURE AND VERTICAL JOINT METHOD OF THE UNIFIED FORM-PREFABRICATION STEEL BAR

摘要

A prefabricated reinforcing bar arrangement structure is provided to minimize the usage of reinforcing bars by arranging connecting bars of vertical and horizontal ladder type truss bars crisscross not to overlap with each other, to heighten work efficiency to the maximum and to shorten a period of work by using a connecting bar of a ladder type truss bar as a form tie. A prefabricated reinforcing bar arrangement structure is formed by placing many ladder type truss bars(110,120) in horizontal and vertical directions and rotating the vertical ladder type truss bars in a 90-degree arc to cross each other and to integrate the ladder type truss bars. The ladder type truss bars are composed of two main reinforcing bars(111,121) placed parallel to each other at a certain distance and many connecting bars(112,122) connected at right angles to the main reinforcing bars, wherein the connecting bars of the horizontal ladder type truss bars are arranged correspondingly to the interval of the arranged vertical truss bars, and the connecting bars of the vertical ladder type truss bars are arranged correspondingly to the interval of the arranged horizontal truss bars, so that the connecting bars of the vertical and horizontal ladder type truss bars are arranged to cross each other not to be overlapped, thereby to form an optimum reinforcement structure for a reinforced concrete structure with minimum quantity of reinforcing bars, and two ends of the connecting bar are projected to the lateral direction of the main reinforcing bars to function as a form tie.