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A construction method for dismantling and hoisting No. 0 block of a bridge

A construction method and bridge technology, applied in the direction of bridges, bridge construction, bridge maintenance, etc., to facilitate construction organization, improve construction quality and speed, and facilitate lifting and transportation.

Active Publication Date: 2021-11-09
GUANGDONG GUANYUE HIGHWAY & BRIDGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a construction method for dismantling and hoisting the No. 0 block of the bridge, which is used to solve the technical problems of cutting, hoisting hole design and hoisting of the No. 0 block on the bridge pier.

Method used

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  • A construction method for dismantling and hoisting No. 0 block of a bridge
  • A construction method for dismantling and hoisting No. 0 block of a bridge
  • A construction method for dismantling and hoisting No. 0 block of a bridge

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Embodiment Construction

[0037] Taking a bridge on a certain river as an example, the bridge is more than 1,000 meters long and is divided into left and right sections. The width of the bridge is 11.5 meters, and the maximum design longitudinal slope is 4%. Such as figure 1 and figure 2 As shown, block 1 of bridge No. 0 has a width of 4.0m and a height of 5m. It is a quadrilateral structure composed of two box structures connected in parallel on the left and right.

[0038] combine Figure 1 to Figure 9 , to further illustrate a construction method for dismantling and hoisting No. 0 block of a bridge, the specific steps are as follows:

[0039] Step 1: Measure and set the outer contour size of No. 0 block 1, draw the vertical section of No. 0 block 1, and divide No. 0 block 1 from top to bottom into three parts: top plate 11, middle plate 12 and bottom plate 13; among them, as figure 2 and Figure 4 As shown, the middle plate 12 is composed of side plates 122 on both sides, a web 121 in the mid...

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Abstract

The invention discloses a construction method for dismantling and hoisting No. 0 block of a bridge. The main steps are as follows: Step 1. Divide No. 0 block from top to bottom into three parts: the top plate, the middle plate and the bottom plate, and set a horizontal cutting line; step 2. Set the vertical cutting lines for the top plate, middle plate and bottom plate; Step 3: Select the hoisting equipment and design the lifting holes according to the size and weight of each cutting unit; Step 4: When cutting, the cutting direction is first the top plate, then the middle plate, and finally For the bottom plate, the cutting sequence is vertical cutting first, and then horizontal cutting; Step 5, lifting and disassembling after cutting, until all cutting units are disassembled. The invention divides No. 0 block vertically, which can facilitate the subsequent layered construction; when cutting, first cut vertically and then cut horizontally, which is convenient for on-site operation, and by cutting block by block, it is convenient for lifting; The setting of the cutting seam in the type structure style facilitates cutting and ensures the stability of the overall structure.

Description

technical field [0001] The invention relates to the field of bridge dismantling engineering, in particular to a construction method for dismantling and lifting No. 0 block of a bridge. Background technique [0002] With the continuous development of the economy, the traffic volume continues to increase, and the number of overloaded and limited vehicles continues to increase, which has a certain impact on bridges. Under the repeated action of heavy vehicles, the bridge deck will be worn out, and in severe cases, the skin will be exposed; in addition, under long-term use, the bridge will have concrete damage and cracks, and the bridge body will be separated from the bridge deck system. , the upper structure to the lower support structure, etc. will have different degrees of damage. [0003] In the past, when bridges were damaged or damaged, detection, repair and reinforcement methods were often used. However, for the situation where the bearing strength of the bridge body is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D24/00
CPCE01D22/00
Inventor 李自坤陈小丽邓洪钧傅荣华陈仲耀李晓辉郑日华王小恒曾繁兴蓝国兵卢玲霞康良锐艾凤梅
Owner GUANGDONG GUANYUE HIGHWAY & BRIDGE
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