Composite beam joint for detachable assembled concrete filled steel tubular column and construction method

Abstract

The invention discloses a composite beam joint for a detachable assembled concrete filled steel tubular column and a construction method. The composite beam joint comprises a square steel tube, wherein four circular steel tubes are arranged in an inner cavity of the square steel tube in a rectangular array way; two cross beams are symmetrically arranged above the square steel tube; two through holes are symmetrically formed in one end of each cross beam; the tops of the circular steel tubes slidingly penetrate into inner cavities of the through holes; a fixing block is arranged on the two cross beams; first screw bolts penetrate to the tops of the round steel tubes through screw threads; an installing frame is arranged under the cross beams; two connecting rods are symmetrically and glidingly connected onto the cross beams in a penetrating way; and first screw nuts are connected to the bottoms of the connecting rods in a penetrating way through screw threads. Through the sliding penetration of the through holes in the cross beams and the round steel tubes, the cross beams are arranged on the square steel tube; and then, the fixing blocks are extruded by tightly screwing the first screw bolts, so that the upper surfaces of the two cross beams are pressed and fixed by the fixing blocks, the stable connection of the two cross beams is ensured, and the cross beams can be conveniently dismounted.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a composite beam node for a detachable assembled steel pipe concrete column and a construction method. Background technique [0002] In modern architecture, multi-high-rise steel structure residences and large-scale public civil and industrial buildings have become key projects promoted by the state. The diversity of steel structure systems in architectural design and the characteristics of easy dismantling, energy saving and environmental protection have become the focus of contemporary structural design. Consider the direction to meet the needs of sustainable development of new building systems. [0003] Concrete-filled steel tube columns and composite beams have the advantages of high bearing capacity, high rigidity, and good seismic performance. At the same time, they also have the characteristics of small cross-section, light weight, and convenient construct...

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Problems solved by technology

[0003] Concrete-filled steel tube columns and composite beams have the advantages of high bearing capacity, high rigidity, and good seismic performance. At the same time, they also have the characteristics of small cross-section, light weight, and convenient construction. The joints between columns and composite beams are usually connected by welds. When the beams are damaged, it is not convenient to disassemble and replace the composite beams.

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