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Reinforced concrete bridge suspension anchor type operation platform and construction method thereof

A reinforced concrete, operating platform technology, applied in bridges, bridge maintenance, bridge reinforcement and other directions, can solve the problems affecting the use function and service life of bridges, the difficulty of bridge maintenance and reinforcement construction, the impact of the environment and construction period, etc. Strength, easy to purchase, good safety and stability

Active Publication Date: 2019-11-22
广西建工集团控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to design limitations, road overloading, natural disasters and untimely maintenance, the aging and deterioration of the bridge structure has been accelerated, and the bridge structure is susceptible to damage to varying degrees, which affects the function and service life of the bridge.
From the current capital construction investment in our country, due to the shortage of funds, it is impossible to demolish and rebuild bridges with poor technical conditions, because doing so will not only cost a lot of investment, but also have a long construction period. Therefore, the current designs are based on full utilization and innovation. Based on the principle of the old bridge, take appropriate reinforcement and transformation measures to meet the needs of bridge operation and prolong its service life
Compared with the construction of new bridge projects, bridge maintenance and reinforcement construction is more difficult. On the one hand, it needs to face the influence of bridge deck traffic dredging and river navigation;

Method used

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  • Reinforced concrete bridge suspension anchor type operation platform and construction method thereof
  • Reinforced concrete bridge suspension anchor type operation platform and construction method thereof
  • Reinforced concrete bridge suspension anchor type operation platform and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0059] as attached figure 1 As shown, the operation process of the present invention mainly includes: construction preparation; setting up a floor-standing operation platform; positioning drilling; injecting glue, installing expansion bolts; anchoring vertical poles; erecting longitudinal and horizontal bars; laying scaffolding boards; Installation; inspection and acceptance.

[0060] combined with Figure 1-19 Shown, a kind of reinforced concrete bridge suspended anchor type operating platform construction method of the present invention, its concrete steps are as follows:

[0061] Step 1: Use steel pipes to build a floor-standing scaffolding operation platform near the bottom of the side beam of the abutment; before setting up the operation platform, the ground at the platform position should be leveled and compacted, and drainage facilities should be prepared. The lower part is equipped with sweeping rods, and scissors are added on the three facades outside the scaffoldin...

Embodiment 2

[0074] The difference from Example 1 is that as a further optimization of the solution of the present invention, step 3 uses an air compressor to blow out dust; step 7 is to install spring washers outside the bolts, and then tighten the nuts; the transverse length of the working platform is greater than the width of the bridge by 1.5m , the longitudinal length is greater than the bridge width 3m, and the scissors brace angle is 60°; the pull-out bearing capacity detection data of the step 8 pull-out test is 8KN; the overlapping length of the longitudinal bar 4 and the cross bar 5 described in the step 9 is 1500mm, When the fasteners of the nodes of the cross bar are clamped, the gap at the opening is 1 mm, and the fastening torque of the fasteners is 60 N m; the scaffold board in step 10 is a bamboo fence board; the protective railings 6 around the operating platform are erected with steel pipes, and the erection height is 2 m ; The distance between the poles is 1.0m; the heigh...

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Abstract

The invention discloses a reinforced concrete bridge suspension anchor type operation platform and a construction method thereof. The operation process mainly comprises the steps of performing construction preparation; erecting a floor type operation platform; carrying out positioning and drilling; performing glue injection, and installing expansion bolts; anchoring vertical rods; erecting longitudinal rods and transverse rods; laying scaffold boards; installing a protective fence and a safety net; and carrying out inspection and acceptance. The suspension anchor type operating platform builtby the construction method comprises bolts, hanging rods, hanging ring locking pieces, longitudinal rods, transverse rods, fasteners and scaffolds. By means of the design, the influence of on-site geography and hydrology is effectively overcome, the construction period is shortened, the construction measure cost is saved, and the platform is firm in structure and high in safety and stability through mutual fixation of the expansion bolts, the hanging rods, the fasteners, the hanging ring locking pieces and the scaffolds.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance and reinforcement construction, in particular to a suspension-anchor operating platform for reinforced concrete bridges and a construction method thereof. Background technique [0002] Bridges are widely used in municipal engineering construction as buildings erected across mountain streams, unfavorable geology or to meet other traffic needs to make traffic more convenient. However, due to design limitations, road overloading, natural disasters and untimely maintenance, the aging and deterioration of the bridge structure is accelerated, and the bridge structure is susceptible to damage to varying degrees, which affects the function and service life of the bridge. From the current capital construction investment in our country, due to the shortage of funds, it is impossible to demolish and rebuild bridges with poor technical conditions, because doing so will not only cost a lot of invest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 黄钦鸣龚喜黄强黄锡景陈绮健
Owner 广西建工集团控股有限公司
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