Bridge shock-absorbing expansion joint device with automatic closing of elastic shock absorber

Abstract

The invention discloses a bridge shock-absorbing expansion joint device with automatic closing of an elastic shock absorber. The bridge shock-absorbing expansion joint device comprises a bridge body,reinforcing steel plates, rubber water stop pads, the elastic shock absorber, closing rubber strips and automatic closing mechanisms. The bridge body is provided with the expansion joint, the reinforcing steel plates are fixed on the positions, on both sides of the expansion joint, of the bridge body through bolts, and the automatic closing mechanism are arranged on the side faces of the reinforcing steel plates. The closing rubber strips are connected between telescopic plates of the automatic closing mechanisms, the elastic shock absorber is installed between the upper ends of shock absorbing box bodies of the automatic closing mechanisms, and the rubber water stop pads are installed at the top ends of the shock absorbing box bodies of the automatic closing mechanisms. When the expansionjoint of the bridge body changes, the rubber water stop pads, the elastic shock absorber and the automatic closing mechanisms can effectively cope with the change of the expansion joint, the vibration can be effectively reduced while the waterproof effect is ensured, a cavity in the expansion joint is always in the state of automatic closing, and the capacity to cope with changing of the expansion joint is improved.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a bridge damping expansion joint device with elastic dampers automatically closed. Background technique [0002] Bridge expansion joints refer to expansion joints usually set between two girder ends, between girder ends and abutments, or at the hinged position of the bridge in order to meet the deformation requirements of the bridge deck. It is required that the expansion joints can freely expand and contract in two directions parallel to and perpendicular to the bridge axis, and are firm and reliable. The vehicles should run smoothly without sudden jumps and noises; they should be able to prevent rainwater and garbage from infiltrating and blocking; installation, inspection, and maintenance , Elimination of dirt should be simple and convenient. Where expansion joints are set, railings and bridge deck pavement must be disconnected. Expansion joints are an important part of brid...

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