Shear-resistant and shock-isolation assembly type synchronous variable-position comb teeth-shaped telescopic device

A telescopic device and assembled technology, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of lack of support strength, easy leakage of garbage and dust-proof effectiveness, etc., shorten the construction period, make the construction assembly process simple and convenient, and improve construction benefit effect

Pending Publication Date: 2019-11-15
WUHAN JIUNAI EXPANSION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] A. The dust-proof system of the large-displacement comb-shaped bridge expansion device does not have a certain support strength for the garbage in the sunken area, which leads to the dust-proof effectiveness of the garbage that is easy to leak.

Method used

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  • Shear-resistant and shock-isolation assembly type synchronous variable-position comb teeth-shaped telescopic device
  • Shear-resistant and shock-isolation assembly type synchronous variable-position comb teeth-shaped telescopic device
  • Shear-resistant and shock-isolation assembly type synchronous variable-position comb teeth-shaped telescopic device

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Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-6 As shown, it is one of the embodiments of the shear-shock-isolation assembled synchronous displacement comb-shaped telescopic device of the present invention. Type structure, including the left and right displacement boxes, hinges, displacement box girders, beams, left, middle and right comb plates fixed at the beam end; It is fixedly connected to the displacement box girder; when the bridge expands and contracts, the middle comb plate is equally displaced relative to the left and right comb plates.

[0040] For the convenience of explaining the components in each drawing, the position and connection relationship between the components, the left and right direction along the vehicle on the bridge is set as the vertical direction, the direction through the pages of the drawings is defined as the horizontal direction, and the vertical direction along the page is defined as the vertical direction.

[0041] refer to Figure 1~Figure 5 , each unit inclu...

Embodiment 2

[0049] Such as Figure 7 and 8 As shown, it is another embodiment of the shear-shock-isolation assembled synchronous displacement comb-shaped expansion device of the present invention, which is a structural unit suitable for medium and large spans (80mm≤expansion amount≤960mm). In the figure, The left panel 21 on the left and the right panel 22 on the right are both comb-shaped, and the left panel 21 and the right panel 22 have an asymmetric structure with respect to the expansion joint, and two rows of counterbore holes are respectively processed on the left panel 21 and the right panel 22 , A long hole nut fixedly connected with the beam end anchorage member is arranged under the counterbore, and a high-strength bolt 17 is installed between the counterbore and the long hole nut. At least three evenly distributed through holes are processed in the transverse direction between the two rows of counterbores, and the shear pins 16 are fixedly connected in the through holes, and ...

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Abstract

The invention discloses a shear-resistant and shock-isolation assembly type synchronous variable-position comb teeth-shaped telescopic device which aims at large-span bridges. The telescopic device comprises a left-right displacement box fixedly connected to a beam end, a hinge, a displacement box beam, a cross beam, a rubbish separation plate, a left comb teeth plate, a middle comb teeth plate and a right comb teeth plate; each comb teeth plate is fixedly connected to a lower component through a shear-resistant high-strength bolt, and the cross beam is arranged on the displacement box beam; and at least one group of vibration isolation supporting seats are arranged below comb teeth of each comb teeth plate. A through hole is formed in a non-comb teeth portion of each comb teeth plate, a shearing-resistant pin is fixedly connected to the through hole, a steel ring is arranged on the periphery of the lower part of the shearing-resistant pin, and a high-performance elevation adjusting filling material is poured between the steel ring and the shearing-resistant pin; and the rubbish separation plate and a dustproof plate are arranged below the comb teeth parts of the comb teeth plates,and the left side or the left side or the right side of the rubbish separation plate is in a zigzag shape. According to the telescopic device, the shearing-resistant fatigue problem of the comb teeth-shaped bridge telescopic device is solved, the sludge can be extruded conveniently, the construction period is greatly shortened, the installation process is convenient, the time is saved, and the precision is accurate.

Description

technical field [0001] The invention relates to a shear-shock-isolation assembled synchronous displacement comb-shaped expansion device, which belongs to the technical field of road and bridge engineering. Background technique [0002] The bridge expansion device is an important connecting part between the beam end abutments of road and railway bridges. It plays an important role in the expansion and contraction of the bridge end abutments, as well as waterproof, dustproof, shockproof and other performances. Its quality and performance will directly affect the entire abutment. The durability of bridges is an important part of highway and railway bridge construction. Since the bridge telescopic device is installed on the weak part of the abutment bridge deck at the beam end, and has been subjected to various natural environmental erosion effects, there will be multi-directional changes in the process of use, such as cold and hot expansion, longitudinal swing, and lateral swin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06
CPCE01D19/065
Inventor 刘力源
Owner WUHAN JIUNAI EXPANSION ENG CO LTD
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