Combination frame structure system with rigid-connection joints

Abstract

The invention discloses a combination frame structure system with rigid-connection joints. The combination frame structure system comprises a prefabricated concrete superposed beam, a steel bearing plate composite floor and a thin-walled concrete-filled steel pipe composite column, the prefabricated concrete superposed beam comprises a prefabricated beam and a cast-in-place part, the cast-in-placepart is internally provided with a beam hogging moment rebar, and the prefabricated beam comprises a main bar and a beam end bottom steel plate; and the steel bearing plate composite floor comprisesa steel bearing plate and reinforced concrete poured on the steel bearing plate, the thin-walled concrete-filled steel pipe composite column comprises a thin-walled steel pipe, steel pipe inner concrete and a joint U-shaped steel corbel, the thin-walled steel pipe is provided with a through hole for reinforcing the steel plate and penetrating the hogging moment rebar at the joint, and a groove-shaped through hole is formed in the bottom of the joint U-shaped steel corbel. The composite column has large bearing capacity, the prefabricated beam can be hoisted at the same time in multiple layers,the beam hogging moment rebar directly penetrates through the joint in the joint area, the lower beam end steel plate is connected by overhead welding after the floor constructed is completed, the construction is convenient, the beam end lower rebar has direct and reliable force transfer, the structure is simple, and the comprehensive cost is low.

Description

technical field [0001] The invention relates to a building structure system, in particular to a hybrid frame structure system with rigid joints. Background technique [0002] The traditional multi-layer steel frame structure system usually uses steel columns and steel beams as vertical and horizontal force-bearing members, which have problems such as high cost, poor fire and corrosion resistance, and high maintenance costs in the later period, and the requirements for joint connection accuracy are high, and the hoisting speed is slow. If the vertical member adopts the steel pipe concrete composite column, the wall thickness of the steel pipe is relatively large, and the steel consumption is large. For projects with small storey height, small span and small load, the prefabricated reinforced concrete frame structure system is generally adopted. When the columns and floor slabs use different labels, the construction process is complicated and difficult. Therefore, the column c...

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Problems solved by technology

[0002] The traditional multi-layer steel frame structure system usually uses steel columns and steel beams as vertical and horizontal force-bearing members, which have problems such as high cost, poor fire resistance and corrosion resistance, and high maintenance costs in the later period, and the requirements for joint connection accuracy are high, and the hoisting speed is slow. If the vertical member adopts the steel pipe concrete composite column, the wall thickness of the steel pipe is relatively large, and the steel consumption is large.

For projects with small storey height, small span and small load, the prefabricated reinforced concrete frame structure system is generally adopted. When columns and floors use different labels, the construction process is complicated and difficult. Therefore, the column section is large, and the beams can only be hoisted layer by layer. The progress is slow and the cost is high. At the same time, the steel bars at the beam-column joints are easy to collide, and the construction is inconvenient.

There is no report on a hybrid frame structure system with rigid connection, which has a large load-bearing capacity of composite columns, multi-layer prefabricated beams can be hoisted at the same time, the beam negative moment reinforcement directly penetrates the nodes in the node area, and the lower part is conveniently welded.

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