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所谓双钢筋系指两根相互平行的纵向冷拔钢筋之间焊接短的横向钢筋,形成梯格形的钢筋片。由于双钢筋在砼制品中有较大的锚固力,因而能有效地限制制品裂缝的开展,增强砼制品的承载能力和抗剪能力。口前我国应用双钢筋砼技术施工生产已达二十多个省市,研究生产双钢筋焊接设备的已达十多个单位。双钢筋砼技术在我国建筑业上已展现出广阔的应用前景。一、几种常用的双钢筋焊接型式1.圆筋双点挤压焊接双点挤压焊接具有自动进料、速度快、效率高等特点。某研究所研制的 SGJ-Ⅱ-
The so-called double bar refers to the welding of short transverse reinforcement between two parallel longitudinally drawn steel bars to form a trapezoidal steel bar. Because the double steel bar has a larger anchoring force in the tantalum products, it can effectively limit the development of cracks in the product and enhance the carrying capacity and shear resistance of the tantalum products. In front of the mouth, our country has applied double-reinforced concrete technology to construct and produce more than 20 provinces and cities, and researched and produced more than ten units of double steel bar welding equipment. Double reinforced concrete technology has shown a broad application prospect in China’s construction industry. First, several commonly used double steel welding patterns 1. Round ribs double point extrusion welding Two-point extrusion welding with automatic feeding, speed, high efficiency. Developed by a research institute SGJ-II-