Steel bar connecting structure and construction method thereof: Fid-Bau Portal

Steel bar connecting structure and construction method thereof

WANG YONGSHENG / FANG ZIQIANG / TAN RONGSHAI / ZHANG SHAOHUA

The invention discloses a steel bar connecting structure and a construction method thereof, the steel bar connecting structure comprises a first sleeve and a second sleeve, the first sleeve and the second sleeve are cylindrical, and stepped through holes are formed in the first sleeve and the second sleeve along the axis; first internal threads are arranged on the inner wall of a small-diameter hole of the first sleeve, first external threads are arranged on the periphery of the end of the first steel bar, and a first concave table is formed in a large-diameter hole of the first sleeve. A second concave table is formed in the large-diameter hole of the second sleeve, an expanded end is arranged at the end of the second steel bar, the second sleeve is arranged outside the second steel bar in a sleeving mode, and the second steel bar penetrates through the small-diameter hole of the second sleeve to enable the expanded end to be arranged in the second concave table; the first sleeve and the second sleeve are connected through threads. The problem that accurate butt joint of steel bars on a construction site is difficult is solved, the device is particularly suitable for steel bar connection of vertical components, tensile stress and pressure stress can be borne, the structure is simple, machining is convenient, the construction efficiency of steel bar connection is improved, and the construction cost is reduced.

本发明公开了一种钢筋连接结构及其施工方法，钢筋连接结构包括第一套筒和第二套筒，第一套筒和第二套筒均呈筒状，均沿轴线开有阶梯通孔；第一套筒的小径孔内壁设有第一内螺纹，第一钢筋端部外周设有第一外螺纹，第一套筒的大径孔内形成第一凹台；述第二套筒的大径孔内形成第二凹台，第二钢筋端部设有扩大端头，第二套筒套装在第二钢筋外，第二钢筋穿过第二套筒的小径孔使扩大端头置于第二凹台内；第一套筒与第二套筒之间通过螺纹连接。本发明解决了施工现场钢筋精准对接难的问题，特别适用于竖向构件的钢筋连接，既可承受拉应力也可承受压应力，结构简单，便于加工，提高了钢筋连接的施工效率，降低施工成本。

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