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中国建科院建筑机械化分院研制成功了一项钢筋等强度剥肋滚压直螺纹连接技术 ,并通过了部级鉴定。该技术及其设备为国内外首创。该技术适用于直径为 16— 4 0ｍｍⅡ、Ⅲ级钢筋在任意方向和位置同径、异径的连接。它不仅可用于要求充分发挥钢筋强度或对接头延性要求高的砼结构 ,
China Construction Machinery Branch of Building Mechanization Branch successfully developed a steel rib strength equal weight rolling straight thread connection technology, and passed the ministerial identification. The technology and equipment for the first at home and abroad. The technology is suitable for diameter 16- 4 0mm Ⅱ, Ⅲ grade steel in any direction and position with the same diameter, different diameter connection. It can be used not only for concrete structures requiring high strength of steel or high ductility of joints,