Broach type bridge telescopic device and construction method thereof

A telescoping device and comb-tooth-type technology, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve problems such as car crashes, large-tooth plate warping, and easy warping, so as to improve service life and reliability, Easy installation and replacement, anti-bounce and upturning effects

Pending Publication Date: 2018-06-29
王同辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: Affected by structural stiffness, the design expansion and contraction should not be too large, and can only be adapted to bridge projects with small and medium expansion
Disadvantages: the cost of the telescopic device is high, which is higher than that of the same type of modular telescopic device; due to the design of the multi-directional displacement system placed inside the tank area, the installation process of the telescopic device is complicated; also because of the structural design of the large and small tooth plates, the telescopic device It has the direction of installation, and the bridge design is basically unable to solve this problem for the sake of uniformity and aesthetic requirements; moreover, for large-displacement telescopic devices, this structure is likely to cause warping of the large tooth plate, which makes a lot of noise when the car passes and jumping, and affect the service life of the telescopic device, and may even cause certain damage to the car tires, causing car crashes such as rollovers
[0003] Therefore, there is an urgent need for a new type of comb-tooth steel plate expansion device in the market, which requires simple installation and a wide range of applications. The most important thing is to further ensure the performance and durability of the existing comb-tooth type steel plate expansion device. Due to the problem that the sliding comb steel plate is easy to warp under the long-term action of the vehicle load, the steel plate expansion device completely eliminates the safety hazard caused by the upward warping of the steel plate for the bridge comb type steel plate expansion device, so as to ensure the lives of the masses and property safety

Method used

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  • Broach type bridge telescopic device and construction method thereof
  • Broach type bridge telescopic device and construction method thereof
  • Broach type bridge telescopic device and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0045] like Figure 1-6 As shown, a comb-toothed bridge telescopic device includes: middle tooth plate 3 across the seam; side tooth plate 1.1 / 1.2 The side tooth plate is symmetrically arranged on both sides of the middle tooth plate 3 across the seam; the first plate 2.1 / 2.2 , the first plate 2.1 / 2.2 is fixed under the side tooth plate 1.1 / 1.2; the displacement control assembly 5, the displacement control assembly 5 includes a displacement control beam 5.1 and a displacement control box 5.2, and the displacement control assembly 5 is set Under the first plate 2.1 / 2.2 and the middle tooth plate 3; the two sides of the middle tooth plate 3 are interlaced with the side tooth plate 1.1 / 1.2, and the middle tooth plate 3 is set on the first Above the plate 2.1 / 2.2; the elastic element 4, the elastic element 4 is composed of the upper steel plate 4.1, the lower steel plate 4.2 and the rubber body 4.3 between the upper steel plate and the lower steel plate, the rubber body 4.3 is con...

no. 2 example

[0058] The strip seat plate 6 in this embodiment is integrally formed along the length direction of the bridge telescopic device. Other structural settings are consistent with those in the first embodiment. That is, the installed bridge expansion assembly along the length direction of the bridge expansion device may include multiple middle tooth plates 3 , multiple corresponding elastic elements 4 , displacement control components 5 , side tooth plates 1 and first plates 2.1 / 2.2.

[0059] For the construction method of the comb-shaped bridge expansion device, the following steps can be used for construction and installation:

[0060] 1) Pre-assembly: The bridge telescopic device is assembled in the workshop according to the complete set of units, the rubber strip is the entire length, reassembled on site, and then transported to the construction site to wait for installation.

[0061] 2) Place the bridge expansion device on site: place the pre-assembled bridge expansion devic...

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PUM

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Abstract

The invention relates to a broach type bridge telescopic device which has the advantages of shifting all around, and being waterproof, slag-proof, noise-reducing, bounce-proof, uniform in stress, symmetrical in design, high in solid pouring safety performance and long in service life. The broach type bridge telescopic device comprises a joint-crossing middle tooth plate (3), first plates (2.1/2.2)symmetrically arranged on two sides of the joint-crossing middle tooth plate (3) and a displacement control assembly (5) arranged below the first plates (2.1/2.2) and the middle gear plate (3), wherein the upper end part of an elastic element (4) is fixedly arranged below the middle tooth plate (3), the lower end part of the elastic element (4) is fixedly arranged in the middle of a displacementcontrol cross beam (5.1), and displacement control cross beams (5) are connected to integrally ensure synchronization of joint width and an adhesive tape seat plate (6) is used for mounting a waterproof rubber strip (7), the waterproof rubber strip (7) mounted between a stainless steel plate (2) and the adhesive tape seat plate (6) to provide a reliable drainage and waterproof functions for the telescopic device.

Description

technical field [0001] The invention relates to a telescopic device, in particular to a comb-shaped bridge telescopic device and a construction method of the comb-shaped bridge telescopic device. Background technique [0002] At present, the advantages and disadvantages of comb-tooth steel plate telescopic devices commonly used in highway bridges are as follows: The first type is a comb-shaped anti-skid groove steel plate, which protrudes from the left and right out of the gap between the bridge decks and engages with each other. The demand is large, it can withstand large horizontal forces, and the design expansion and contraction can reach 420mm; advantages: the construction height of this expansion device is low, the installation is simple, and it can be installed within the height of the bridge deck pavement, and it has a wide range of applications. It can be used on old bridges, especially for the replacement of large-displacement rubber plate-type telescopic devices ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06E01D21/00
CPCE01D19/06E01D21/00
Inventor 王同辉
Owner 王同辉
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