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A platform for research: civil engineering, architecture and urbanism
Hinge joint structure with composite shear keys and precast slab bridge thereof
The invention discloses a hinge joint structure with composite shear keys, which comprises a plurality of precast slabs, a hinge joint is formed between the precast slabs, and connecting keys which can transfer horizontal shearing force and vertical shearing force and are integrally connected with the precast slabs and the hinge joint are transversely distributed on the hinge joint; the connecting keys are stiffened steel plates with bolted shear keys which span the hinge joint and are fixed on the surfaces of the precast slabs at both sides of the hinge joint, and the stiffened steel plates are provided with through holes capable of transferring horizontal shearing force which correspond to the hinge joint; the stiffened steel plates with the through holes are shear keys, horizontal shearing force is transferred by the through holes and vertical shearing force is transferred by the stiffened steel plates, so that the force transfer property is enhanced, and thereby the stiffness and overall performance of the structure are enhanced; the bolted shear keys can transfer horizontal shearing force and enhance connection property. The coordinate deformation of a bridge deck pavement, the hinge joint and the precast slabs is ensured, the load transfer capability of the hinge joint structure is enhanced, the service life of the hinge joint structure is prolonged, maintenance cost is reduced, construction is simple and convenient, the hinge joint structure can be applied in the construction of new precast slab bridges or the maintenance and reinforcement of precast slab bridges, and effectively solves the defect of insufficient shear-resisting capability existing in precast slab bridges, and the integrity and force-transferring effectiveness of the structure are increased.
Hinge joint structure with composite shear keys and precast slab bridge thereof
The invention discloses a hinge joint structure with composite shear keys, which comprises a plurality of precast slabs, a hinge joint is formed between the precast slabs, and connecting keys which can transfer horizontal shearing force and vertical shearing force and are integrally connected with the precast slabs and the hinge joint are transversely distributed on the hinge joint; the connecting keys are stiffened steel plates with bolted shear keys which span the hinge joint and are fixed on the surfaces of the precast slabs at both sides of the hinge joint, and the stiffened steel plates are provided with through holes capable of transferring horizontal shearing force which correspond to the hinge joint; the stiffened steel plates with the through holes are shear keys, horizontal shearing force is transferred by the through holes and vertical shearing force is transferred by the stiffened steel plates, so that the force transfer property is enhanced, and thereby the stiffness and overall performance of the structure are enhanced; the bolted shear keys can transfer horizontal shearing force and enhance connection property. The coordinate deformation of a bridge deck pavement, the hinge joint and the precast slabs is ensured, the load transfer capability of the hinge joint structure is enhanced, the service life of the hinge joint structure is prolonged, maintenance cost is reduced, construction is simple and convenient, the hinge joint structure can be applied in the construction of new precast slab bridges or the maintenance and reinforcement of precast slab bridges, and effectively solves the defect of insufficient shear-resisting capability existing in precast slab bridges, and the integrity and force-transferring effectiveness of the structure are increased.
Hinge joint structure with composite shear keys and precast slab bridge thereof
HE XIAOBING (author) / XU YONG (author) / PENG KAI (author) / YANG QINGGUO (author) / WU ZULIE (author) / LU HAN (author) / CHEN SIWEI (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
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