Multidirectional through concrete filled steel tubular column beam joint provided with steel corbels and ring beam

Abstract

The invention relates to a multidirectional through concrete filled steel tubular column beam joint provided with steel corbels and a ring beam. The multidirectional through concrete filled steel tubular column beam joint comprises a plurality of steel corbels and the ring beam, wherein the steel corbels are radially connected to a steel tubular column; inner ends of the plurality of the steel corbels penetrate through the steel tubular column and are mutually welded and connected in the steel tubular column, and outer ends of the plurality of the steel corbels penetrate through the ring beam; the ring beam comprises a ring beam framework and inner concrete ring beam cores arranged in the ring beam framework; the ring beam framework comprises two layers of ring beam bottom ribs, two layers of ring beam top ribs and ring beam stirrups; a plurality of reinforcing steel bar rings of each layer of ring beam bottom ribs and each layer of ring beam top ribs are concentric, and are located on the same plane and bound by a plurality of stirrups; and the two layers of ring beam bottom ribs and the two layers of ring beam top ribs are bound by a plurality of the ring beam stirrups. The joint has the advantages that the joint is simple in structure, free of dense reinforcing steel bars and feeble fragile stress positions and stable in load transmitting, can safely and stably bear a frame beam, and is convenient to construct, short in period, low in cost and applicable to construction of high-rise and super high-rise buildings having multidirectional through concrete filled steel tubular column beam joints comprising steel corbels and ring beams.

Description

technical field [0001] The invention relates to a column-beam joint, in particular to a column-beam joint for pouring steel tube concrete by using multi-directional piercing steel corbels and ring beams. Background technique [0002] The concrete-filled steel tube structure is a new composite structure formed by filling concrete into steel tubes. Since the steel tube concrete structure can more effectively utilize the respective advantages of steel and concrete, and at the same time overcome the shortcomings of the steel tube structure that is prone to local buckling, in recent years the steel tube concrete structure has been gradually used in building structures, especially in high-rise and super high-rise buildings. in structure. The design of joints between CFST columns and reinforced concrete beams directly affects the overall stiffness, mechanical performance and safety of the structure, and also affects the difficulty of construction and the progress of the project. T...

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Problems solved by technology

[0005] In order to solve the brittle strengthening of the joints in the prior art that the frame beam is directly connected to the steel pipe column radially through the steel corbel, and the frame beam is supported by the ring steel corbel through the ring beam, and the stressed main beam of the frame beam passes through the steel column , the problem of poor seismic performance, the present invention provides a multi-directional through-piercing steel corbel and ring beam with simple structure, convenient manufacture and installation, which can take into account the reinforcement density of the connection node between the frame beam and the steel pipe column and the force of the frame beam supported by the ring beam , Steel tube concrete column beam joints, no on-site assembly is required, and the construction method is convenient, safe and low in cost

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