Square circle-sleeving hollow sandwich steel pipe concrete column and steel beam connecting joint and construction method

Abstract

Disclosed is a square circle-sleeving hollow sandwich steel pipe concrete column and steel beam connecting joint and construction method. The connecting joint includes an outer square steel pipe, ribplates, a steel beam, concrete, high-strength bolts, end plates and an inner circle steel pipe. The end parts of the steel beam are perpendicularly and fixedly connected with the end plates. The rib plates are welded to the junctions of the upper parts and the lower parts of the steel beam and the end plates in the direction of a beam web plate. The end plates fixedly provided with the steel beamare attached to the two sides of the exterior of the outer square steel pipe. The high-strength bolts penetrate through the end plates, the outer square steel pipe, the concrete and the inner circle steel pipe in sequence. The steel beam is perpendicularly installed on the outer square steel pipe. By using high-strength bolt connection, the rib plates are welded to the outer sides of upper and lower flanges in the direction of the beam web plate, reliable connection between the beam and the end plates is ensured, and the connecting joint has the advantages of being simple in structure, clear in force transfer, convenient to construct and the like.

Description

technical field [0001] The invention relates to a connection node between a square sleeve and a circle hollow interlayer concrete filled steel pipe column and a steel beam and a construction method, and belongs to the technical field of civil structure nodes. Background technique [0002] Concrete-filled steel tube columns utilize the combination of steel tubes and concrete in the stress process, give full play to the advantages of these two materials, greatly improve the plasticity and toughness of concrete, and avoid or delay the local buckling of steel tubes, so that The concrete-filled steel tube column has high overall bearing capacity, good plasticity and toughness. With the development of modern buildings towards high-rise and super-high-rise buildings, concrete-filled steel tubes have gradually demonstrated their superiority and are widely used in engineering practice. Large, light weight, good seismic performance and other significant features, so it has a good app...

AI Technical Summary

Problems solved by technology

However, the complexity of dealing with concrete-filled steel tube beam-column joints has always been a major factor restricting the promotion of concrete-filled steel tube structures.

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