Semi-open shear connector used in corrugated steel composite bridge deck slab

Abstract

The invention relates to a semi-open shear connector used in a corrugated steel composite bridge deck slab, and belongs to the field of steel-concrete composite structures. The bridge deck slab comprises a corrugated steel plate, shear connectors and penetrating steel bars, the shear connectors are fixed on the center line of the trough of the corrugated steel plate, and arc half openings are uniformly formed in the upper parts of the shear connectors. Each arc-shaped opening is correspondingly provided with two penetrating steel bars, the bending shapes of the penetrating steel bars are consistent with the shape of the corrugated steel plate, the downward-concave parts in the middles of the penetrating steel bars are located in the troughs of the corrugated steel plate and penetrate through the arc-shaped half openings, and the two ends of each penetrating steel bar abut against the crests of the corrugated steel plate. The welding workload is small, the shearing force connecting piece is of a semi-open structure, only the penetrating reinforcing steel bar needs to be placed into a designated position during construction, and the problem that a traditional perforated plate shearing force connecting piece penetrates through the reinforcing steel bar difficultly is solved; an elliptical hole is formed in the bottom, so the anti-shearing bearing capacity is further improved. Dueto the characteristics of the structure, certain deformation can be generated when the structure is loaded, and therefore the structure has good ductility.

Description

technical field [0001] The invention belongs to the field of steel-concrete composite structures, and in particular relates to a semi-opening shear connector used in corrugated steel composite bridge decks. Background technique [0002] The steel-concrete composite structure can give full play to the advantages of steel and concrete, and is one of the important development directions of modern structures. The corrugated steel composite bridge deck is a new type of composite bridge deck, which is composed of corrugated steel bottom plate, concrete and shear connectors. During construction, the completed corrugated steel is hoisted as a whole, which is convenient and quick. In the subsequent construction process, the corrugated steel can be used as a permanent formwork. On site, only the vertical and horizontal ordinary steel bars on the upper part of the bridge deck can be bound to pour the bridge deck concrete. Composite bridge deck with ordinary corrugated steel has the ad...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems in the background technology, the present invention provides a semi-opening shear connector used in corrugated steel composite bridge decks, the shear connector greatly reduces the welding workload compared with the stud shear connector, At the same time, because the shear connector is a semi-open structure, it is only necessary to put the penetrating steel bar into the designated position during construction, which overcomes the difficulty of the traditional perforated plate shear connector penetrating the steel bar; opening an oval hole at the bottom further improves shear capacity

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