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Reset type bridge expansion joint device

A technology of expansion joints and bridges, used in bridges, bridge construction, bridge parts, etc.

Active Publication Date: 2021-07-20
HENGSHUI MINGGUANG ENG RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention intends to provide a reset type bridge expansion joint device to solve the problem that the existing bridge expansion joint device cannot help the beam recover from deformation

Method used

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  • Reset type bridge expansion joint device
  • Reset type bridge expansion joint device
  • Reset type bridge expansion joint device

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Experimental program
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Effect test

Embodiment

[0035] Such as figure 1 , figure 2 , image 3 and Figure 4 Shown:

[0036] A reset-type bridge expansion joint device, comprising symmetrically arranged expansion joint channel steel 1, two groups of connecting cavities 2 are provided on the opposite surfaces of the expansion joint channel steel 1, the longitudinal section of the connecting cavity 2 is elliptical, and the connecting cavity 2 is arranged along the expansion joint The length direction of the channel steel 1 runs through the expansion joint channel steel 1; coaxial column steel 3 is placed in the connecting cavity 2, and the longitudinal section of the column steel 3 is circular; the horizontally adjacent connecting cavity 2 are provided with a number of evenly distributed buffer rods, the buffer rods include a moving rod 5 and a hollow fixed rod 4, the movable end of the moving rod 5 is slidably connected in the fixed rod 4, and the moving rod 5 and the fixed rod 4 Buffer springs 6 are arranged between the...

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Abstract

The invention relates to the field of bridge construction, and particularly discloses a reset type bridge expansion joint device which comprises symmetrically-arranged expansion joint channel steel, two sets of connecting cavities are formed in the opposite faces of the expansion joint channel steel, the longitudinal sections of the connecting cavities are oval, and the connecting cavities penetrate through the expansion joint channel steel in the length direction of the expansion joint channel steel; coaxial cylindrical steel is placed in each connecting cavity, and the longitudinal section of each cylindrical steel is circular; a plurality of evenly-distributed buffer rods are arranged between the horizontally-adjacent connecting cavities, each buffer rod comprises a movable rod and a hollow fixed rod, the movable end of each movable rod is slidably connected into the corresponding fixed rod, a buffer spring is arranged between each movable rod and the corresponding fixed rod, a connecting groove parallel to the expansion joint channel steel is formed in the end of the connecting cavity, and the width of the connecting groove is smaller than the diameter of the cylindrical steel; the fixed ends of the movable rod and the fixed rod are fixedly connected with the corresponding cylindrical steel; and the reset type bridge expansion joint device aims at solving the problem that an existing bridge expansion joint device cannot assist a beam body in deformation recovery.

Description

technical field [0001] The invention relates to the technical field of bridge construction, and specifically discloses a reset type bridge expansion joint device. Background technique [0002] In order to meet the requirements of the deformation of the bridge deck, expansion joints are usually set between the ends of the two girders, between the ends of the girder and the abutment, or at the hinged position of the bridge. Retractable, firm and reliable. The main structure of the traditional expansion joint device is mainly composed of two pieces of hot-rolled integrally formed special-shaped steel and anchor steel bars for welding and fixing, mainly to prevent damage caused by excessive changes in bridge spacing caused by changes in temperature or load-bearing load, but the shape of the beam Variable reset and channel steel reset basically depend on the recovery of deformation of the beam itself, which cannot help the recovery of deformation of the beam; however, during the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06
CPCE01D19/06E01D19/065
Inventor 周磊王旭
Owner HENGSHUI MINGGUANG ENG RUBBER CO LTD