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Method for replacing height-adjustable support

A replacement method and adjustable technology, which is applied to bridge parts, erection/assembly of bridges, bridge maintenance, etc., can solve problems such as difficult quality assurance, heavy coordination workload, and high risk factor, so as to reduce coordination workload, save costs and Time, wide range of effects

Pending Publication Date: 2021-01-22
DATONG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a structurally important connecting component, the support is affected by various factors such as manufacturing, construction, operation and maintenance. It is often difficult to guarantee the same quality as the structure, and it often needs to be replaced after several years of use. Replacement, the main method is synchronous jacking, that is, a bridge or all supports on the same pier / platform are synchronously lifted by synchronous control technology, and then the supports that need to be replaced are replaced. The construction process is complicated and the bridge needs to be lifted by 1cm Left and right, the jacking requires a large amount of work, high technical difficulty, high risk factor, large area occupation, heavy coordination workload, interruption of operations on the bridge, and high cost

Method used

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  • Method for replacing height-adjustable support
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  • Method for replacing height-adjustable support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-3 As shown, a method for replacing a height-adjustable support includes the following steps:

[0036] S1: Install the temporary support 5 near the side of the support, and install the temporary support 5 on both sides of the support, so as to ensure the vertical bearing capacity of the temporary support 5 and avoid the bearing capacity of the temporary support 5 due to the over-centering of the beam body If a safety accident occurs, adjust the temporary support 5 so that it is closely attached to and fixed with the upper structure 3 and the lower structure 4, so as to avoid the vertical displacement of the upper beam body from affecting the overall force of the beam body;

[0037] S2: Lower the height of the support through the height adjustment mechanism 2, so that the support is separated from the bottom surface of the beam body, so that the load above the support is removed to prepare for the removal of the support;

[0038] S3: Remove the support ...

Embodiment 2

[0041] Such as figure 2 As shown, the upper structure 3 is a beam body, and the lower structure 4 is a pier column or a bridge pier. The support is composed of a support body 1 and a height adjustment mechanism 2. The height adjustment mechanism 2 is installed above or below the support body 1. The height adjustment mechanism 2 is equipped with a power drive device 6, which is carried between the upper and lower structures through the temporary support 5. The temporary support 5 is any one of jacks, rubber bodies, steel pads, shaped steel, concrete blocks or steel pipe concrete. The temporary support 5 acts on the bottom surface of the beam body, and the power drive device 6 provides power to change the height of the height adjustment mechanism 2, lower the height of the support, take out the support, replace with a new support, remove the temporary support 5, and finally complete the replacement of the support .

Embodiment 3

[0043] Such as Figure 4 As shown, the height adjustment mechanism 2 includes an upper plate 201, a lower plate 202 and an adjustment block 203, an adjustment cavity 204 is formed between the upper plate 201 and the lower plate 202, the adjustment block 203 is located in the adjustment cavity 204 and can be adjusted in the adjustment cavity 204 slides and makes the height adjustment mechanism 2 change in height.

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PUM

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Abstract

The invention discloses a method for replacing a height-adjustable support. The concrete construction technology of the method comprises the following steps of: mounting a temporary support at a position close to the side surface of the support, and adjusting the temporary support to be tightly attached and fixed with an upper structure and a lower structure; lowering the height of the support, and unloading the load of the support; disassembling the support to be replaced, and installing a new support; and adjusting the support to the initial position, and detaching the temporary support. A synchronous jacking technology can be replaced, rapid replacement of a single support in the operation period is achieved, a bridge does not need to be jacked, the technical difficulty is small, the danger coefficient is low, the occupied area is small, the coordination workload is small, medium-broken bridge operation is not needed, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a method for replacing a height-adjustable support. Background technique [0002] As a structurally important connecting component, the support is affected by various factors such as manufacturing, construction, operation and maintenance. It is often difficult to guarantee the same quality as the structure, and it often needs to be replaced after several years of use. Replacement, the main method is synchronous jacking, that is, a bridge or all supports on the same pier / platform are synchronously lifted by synchronous control technology, and then the supports that need to be replaced are replaced. The construction process is complicated and the bridge needs to be lifted by 1cm Left and right, the jacking requires a large amount of work, high technical difficulty, high risk factor, large land occupation, large coordination workload, interruption of operations on the...

Claims

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Application Information

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IPC IPC(8): E01D22/00E01D19/04
CPCE01D19/04E01D22/00
Inventor 伍大成王剑明邹贻军
Owner DATONG INC