Highway bridge expansion joint
A technology for highway bridges and expansion joints, applied in the direction of bridges, bridge construction, bridge parts, etc., can solve problems such as short service life and structural damage, and achieve the effect of improving service life and reducing impact loads.
Active Publication Date: 2021-10-15
CISDI ENG CO LTD
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Problems solved by technology
[0003] Existing bridge expansion joints are usually located where the beam body is displaced, and the upper load-bearing plate needs to bear the force of the entire vehicle passing through. The force points are relatively concentrated, which is easy to cause structural damage and has a short service life.
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[0026] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0027] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
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The invention belongs to the technical field of road and bridge facility building construction, and relates to a highway bridge expansion joint which comprises a deceleration strip, a first elastic supporting assembly and a connecting mechanism used for being connected with a bridge, the connecting mechanism comprises an elastic connecting assembly and two symmetrically-arranged steel beams, and positioning columns used for being connected with the bridge are arranged on the steel beams; and the two steel beams are connected through an elastic connecting assembly. The speed bump is arranged between the two steel beams; and the steel beam is further provided with an I-shaped frame connected with the steel beam in a sliding mode. The I-shaped frame is connected with the deceleration strip through a first elastic supporting assembly; and a sliding rail is further arranged on the steel beam, a sliding block is arranged below the I-shaped frame, and the sliding block is connected with the sliding rail in a sliding mode. The highway bridge expansion joint is novel in structure and ingenious in conception, has a certain shock absorption function, can effectively reduce the impact load on the axle body caused by high-speed passing of a vehicle, and prolongs the service life of the axle body.
Description
technical field [0001] The invention belongs to the technical field of construction of road and bridge facilities, and relates to a road bridge expansion joint. Background technique [0002] Expansion joints of highway bridges: refers to the expansion joints usually set between two girder ends, between girder ends and abutments or at the hinged position of bridges 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. The role of highway bridge expansion joints is to a...
Claims
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IPC IPC(8): E01D19/06
CPCE01D19/065Y02A30/60
Inventor 王庆滨丁华磊曾洪程古洋
Owner CISDI ENG CO LTD