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Surface seamless type bridge expansion joint
The invention belongs to the technical field of road and bridge engineering, and relates to a surface seamless type bridge expansion joint. The surface seamless type bridge expansion joint is characterized in that lower sliding plate blocks are fixed to the tops of two cement main beams through anchoring devices respectively, elastic deformation bodies are arranged at the two ends of a bearing plate, one end of each elastic deformation body is fixedly connected with the bearing plate, the other ends of the elastic deformation bodies are fixedly connected with connecting steel bars reserved on the main beams, sliding shafts are arranged between the tops of the two cement main beams and the bearing plate, lubricant grooves are formed in the contact faces of the lower sliding plate blocks and the bearing plate, antiskid grooves are formed in the contact face of the bearing plate and a bridge deck pavement layer, and a limiting check block is fixed to the middle of the lower portion of the bearing plate. The surface seamless type bridge expansion joint has the advantages that telescopic deformation of a bridge is mainly completed below the bearing plate and on the elastic deformation bodies and the bridge deck pavement layer, due to the fact that the surface of the bridge expansion joint has no seam, running comfort is improved, the impact action of running loads to the bridge is weakened, the constriction period is short, the maintenance and replacement time of the expansion joint is shortened, bridge deck maintenance and pavement layer modification are facilitated, and the service life is prolonged.
Surface seamless type bridge expansion joint
The invention belongs to the technical field of road and bridge engineering, and relates to a surface seamless type bridge expansion joint. The surface seamless type bridge expansion joint is characterized in that lower sliding plate blocks are fixed to the tops of two cement main beams through anchoring devices respectively, elastic deformation bodies are arranged at the two ends of a bearing plate, one end of each elastic deformation body is fixedly connected with the bearing plate, the other ends of the elastic deformation bodies are fixedly connected with connecting steel bars reserved on the main beams, sliding shafts are arranged between the tops of the two cement main beams and the bearing plate, lubricant grooves are formed in the contact faces of the lower sliding plate blocks and the bearing plate, antiskid grooves are formed in the contact face of the bearing plate and a bridge deck pavement layer, and a limiting check block is fixed to the middle of the lower portion of the bearing plate. The surface seamless type bridge expansion joint has the advantages that telescopic deformation of a bridge is mainly completed below the bearing plate and on the elastic deformation bodies and the bridge deck pavement layer, due to the fact that the surface of the bridge expansion joint has no seam, running comfort is improved, the impact action of running loads to the bridge is weakened, the constriction period is short, the maintenance and replacement time of the expansion joint is shortened, bridge deck maintenance and pavement layer modification are facilitated, and the service life is prolonged.
Surface seamless type bridge expansion joint
WANG YUJUAN (author) / LUAN HAI (author) / JI QINGSHAN (author) / CUI HONGHAI (author)
2015-07-08
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
Novel bridge assembly type seamless expansion joint structure
| European Patent Office | 2024
| European Patent Office | 2020