Steel-concrete composite beam

Abstract

The invention discloses a steel-concrete composite beam which comprises a base, transmission bases are slidably connected to the two sides of the bottom of the inner wall of the base, sliding bases are slidably connected to the sides, away from each other, of the two transmission bases, steel beams are fixedly connected to the tops of the two sliding bases, and the tops of the two steel beams penetrate through the base and extend to the upper portion of the base. By pushing the transmission base on the left side rightwards, teeth in the rectangular groove in the transmission seat also move rightwards along with the transmission seat, so that the gear is driven to rotate, the teeth below the gear are driven to move rightwards, the other transmission seat is driven to move rightwards from the left side of the base, and the supporting point at the bottom of the sliding base on the other side is lowered; the top of the right sliding seat is stressed by the other steel beam and the right side of the concrete plate, so that the right sliding base slides downwards, the two sides of the concrete plate are balanced, the self-adjusting balance performance of the steel-concrete composite beamis improved, the situation that the composite beam is broken due to the fact that one end is stressed to incline is prevented, and the service life of the steel-concrete composite beam is prolonged.

Description

technical field [0001] The invention relates to the technical field of composite beams, in particular to a steel-concrete composite beam. Background technique [0002] Steel-concrete composite beam is a new type of structure developed on the basis of steel structure and concrete structure. It mainly resists the lifting and relative slippage at the interface between the steel beam and the concrete flange plate by setting shear connectors (bolts, channel steel, bending bars, etc.), making it a whole work together. [0003] At present, the existing steel-concrete composite beams fix the steel beam and the concrete slab together through shear connectors. When one side of the top of the concrete slab is tilted under force, if it cannot be adjusted and reset, the force will be applied for a long time, which will cause the steel beam Cracks are generated at the connection with the concrete slab, which is more likely to cause breakage and safety accidents for a long time. The stab...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel-concrete composite beam to solve the problem that in the prior art, one side of the concrete slab cannot automatically adjust the balance after being tilted under force, so that the inclined angle of the stressed side will be larger after long-term use, which will cause the composite beam to break , safety accidents occur, and the problem of reducing safety performance

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