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Reinforcement structure and method for a small-span masonry arch bridge

A technology for masonry arch bridges and reinforcement structures, applied in bridge reinforcement, arch bridges, bridges, etc., can solve problems such as arch ring damage and arch ring damage, and achieve the effect of improving the compression resistance

Active Publication Date: 2022-01-28
商丘市豫东公路勘察设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above method needs to plant bars, which will easily cause damage to the arch ring during the process of planting bars, thus easily causing damage to the arch ring during the reinforcement process.

Method used

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  • Reinforcement structure and method for a small-span masonry arch bridge
  • Reinforcement structure and method for a small-span masonry arch bridge
  • Reinforcement structure and method for a small-span masonry arch bridge

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Embodiment 1

[0038] Embodiment one, refer to figure 1 and image 3 , is a reinforcement structure of a small-span masonry arch bridge disclosed by the present invention, comprising an arch bridge body 1, an arch ring 11 is arranged in the middle of the arch bridge body 1, the arch ring 11 is arc-shaped, and the arc-shaped opening formed by the arch ring 11 Set downwards, a bridge seat 12 is respectively provided at both ends of the arch ring 11 located on the arch bridge body 1 , the bridge seat 12 is located on the ground, and the bridge seat 12 is used to support the arch bridge body 1 . A reinforcing seat 2 is arranged on the two bridge seats 12, and the reinforcing seat 2 is used to strengthen the bridge seat 12, and the reinforcing seat 2 increases the bridge seat 12, and an arch is arranged between the two reinforcing seats 2 3. The arch frame 3 is bow-shaped and is located in the arch ring 11. The highest point of the arch frame 3 and the highest point of the arch ring 11 are set u...

Embodiment 2

[0042] Embodiment 2 is a method for reinforcing a small-span masonry arch bridge disclosed in the present invention, which is used to construct the reinforcement structure of a small-span masonry arch bridge disclosed in Embodiment 1, including the following steps:

[0043] Step 1: Firstly, a connecting groove 121 is opened on the bridge base 12, the connecting grooves 121 are opened horizontally, and mounting holes 122 are opened on the upper and lower side walls of the connecting groove 121, the mounting holes 122 are vertically arranged, and the connecting ribs are inserted into the mounting holes 122 8. When the connecting rib 8 is inserted, the length of the threaded connection between the first rib 81 and the second 82 of the rib is the longest, so that the connecting rib 8 can enter the connecting groove 121. When the connecting rib 8 corresponds to the mounting hole 122, Turn the first rib 81 to reduce the length of the first rib 81 threaded in the second rib 82, so tha...

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Abstract

The invention relates to a reinforcement structure of a small-span masonry arch bridge, which comprises an arch bridge body, an arch ring is arranged in the middle of the arch bridge body, and an abutment is respectively arranged at both ends of the arch bridge body, and each abutment is close to the arch bridge One side of the middle part of the main body is provided with a reinforcement seat, and arches are supported on the two reinforcement seats. The arc-shaped back of the arches is provided with a steel plate, and the space between the steel plate and the arch ring is arranged to form a cavity. A reinforcement cage is arranged in the chamber, and concrete is poured in the chamber. The invention has the effect of avoiding damage to the arch ring during the reinforcement process.

Description

technical field [0001] The invention relates to the technical field of reinforcement of a masonry arch bridge, in particular to a reinforcement structure of a small-span masonry arch bridge and a method thereof. Background technique [0002] Masonry arch bridges have the advantages of using local materials, saving steel and cement, and simple structure. Masonry arch bridges are widely used in the central and western regions of my country due to terrain reasons. However, due to the continuous improvement of traffic flow and load levels, more and more More and more masonry arch bridges have the problem of insufficient re-carrying capacity, which seriously affects the development of transportation. If the old bridges are completely demolished and rebuilt, the cost will be high, so bridges with small spans are usually reinforced. [0003] The patent document with the authorized notification number CN102322026B discloses a reinforcement method for a masonry arch bridge, including ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00E01D4/00E01D101/26E01D101/30
CPCE01D22/00E01D4/00E01D2101/26E01D2101/30
Inventor 陈伟张传银张凌风王新成聂琛曹雷路畅南松波陈元亮元中华
Owner 商丘市豫东公路勘察设计有限公司
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