Rectangular steel pipe column and H-shaped steel beam inner sleeve type unilateral bolt connection node

Abstract

The invention relates to a rectangular steel pipe column and H-shaped steel beam inner sleeve type unilateral bolt connection node. The structure is simple, the performance is good, the defect that a unilateral bolt is prone to be pulled out is overcome, and the assemblage degree is high. The node comprises a rectangular steel pipe column, H-shaped steel beams, a through pull rod and high-strength bolts; a steel sleeve is coaxially arranged in the rectangular steel pipe column, and extended end-plates are welded to the ends of the H-shaped steel beams; the steel sleeve is provided with positioning circular holes and tapping bolt holes; the extended end-plates and the rectangular steel pipe column are provided with multiple bolt holes in a paired mode in the axial direction of the rectangular steel pipe column, and a connecting wall panel and an opposite wall panel of the rectangular steel pipe column are each provided at least two positioning circular holes in the axial direction of the rectangular steel pipe column; the bolt holes are formed corresponding to the tapping bolt holes and the positioning circular holes on the same side, and the through pull rod penetrates through the positioning circular holes and is used for positioning the steel sleeve and the rectangular steel pipe column; the high-strength bolts sequentially penetrate through the bolts holes in the extended end-plates and the bolt holes in the rectangular steel pipe column to be fixedly connected with the corresponding tapping bolt holes in the steel sleeve.

Description

technical field [0001] The invention belongs to the technical field of civil construction engineering and mechanical assembly, and relates to a prefabricated steel structure construction technology, in particular to a connection node of a rectangular steel pipe column and an inner sleeve type unilateral bolt of an H-shaped steel beam. Background technique [0002] Rectangular steel pipe columns have high torsional rigidity and good stability, and are often connected with H-shaped steel beams to form a steel frame. Due to the closed cross-section of steel pipes, high-strength bolts cannot be directly applied to the connection nodes. Nowadays, H-shaped steel beams are directly welded to rectangular steel pipe columns, or H-shaped steel beams are connected to rectangular steel pipe columns by means of transition pieces such as short outrigger beams, ring ribs, and partitions. These methods require a large number of welding on site. The quality of joints is not easy to guarante...

AI Technical Summary

Problems solved by technology

However, the existing unilateral bolts are generally special fasteners, which require special tools to complete the connection, and the cost is relatively high; the anchorage ends of these unilateral bolts are relatively weak, the bolts are easy to be pulled out, and the local deformation of the steel pipe wall is relatively large

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