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Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge

A masonry arch bridge and masonry arch technology, applied in the direction of arch bridges, bridges, bridge forms, etc., can solve the problems of destructive traffic network, expensive demolition and reconstruction technology, etc., and achieve the effect of improving access

Inactive Publication Date: 2017-03-22
SOLETANCHE FREYSSINET SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique can cause flooding problems
Also, in the rail industry, problems can arise when leveling with the platform in the drop zone
[0005] In addition, demolition and reconstruction and ground lowering techniques are expensive and disruptive to the transportation network, as both necessarily result in the closure of the crossed transportation link for a considerable period of time

Method used

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  • Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge
  • Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge
  • Method of enlarging the space beneath a masonry arch bridge, and a masonry arch bridge

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Experimental program
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Embodiment Construction

[0095] Regarding the first embodiment, figure 1 A single-span masonry arch bridge 1 and a space 2 under the masonry arch bridge are shown. The masonry arch bridge 1 comprises masonry arches 3 , spandrel walls 4 at each end of the masonry arches 3 , and a parapet 6 above each spandrel wall 4 and masonry arches 3 . The masonry arch 3 is supported on respective piers 9 on each side of the masonry arch 3 . The masonry arch bridge is supported by embankment 5 . Between the spandrel walls 4, the embankment 5 and the masonry arch 3, the masonry arch bridge is filled with filling material.

[0096] The first stage of the method consists of installing the lifting truss foundation 10 in the fill material and embankment 5, installing the crushed stone mesh and shield 11 to the masonry arch 3 and the masonry arch bridge 1 and installing the truss 12 on the truss foundation 10 .

[0097] refer to figure 2 , the method also includes supporting the parapet 6, supporting the spandrel w...

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Abstract

A method of enlarging the space beneath a masonry arch bridge 301, the masonry arch bridge 301 comprising a masonry arch 303 and a spandrel wall at each end of the masonry arch 303, the method comprising forming a moveable portion 332 of the masonry arch bridge 301 by cutting the spandrel walls to form a cut 330 on each side of the masonry arch 303, applying a lifting force to the masonry arch 303 to raise the masonry arch 303 to a raised position, and securing the masonry arch 303 in the raised position.

Description

technical field [0001] The invention relates to a method for enlarging the space under a masonry arch bridge and a masonry arch bridge. Background technique [0002] Masonry arch bridges are often used in transportation networks to span transportation links, such as railway tracks. However, existing masonry arch bridges limit the size of vehicles used on this traffic link due to the limited space beneath them. In addition, it may limit the modification of transportation links, such as the electrification of railway tracks. Therefore, to increase the capacity of existing traffic links and to modify existing traffic links, it may be necessary to expand the space under existing masonry arch bridges or to demolish and rebuild such bridges. [0003] Demolition of an existing structure is generally not advisable as it may be historic protected (for example in the UK a building may be placed on a statutory list of special buildings or buildings of historic significance). [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D4/00E01D22/00
CPCE01D4/00E01D22/00E04G23/0233
Inventor 凯文·约翰·班尼特威廉·约翰·哈维
Owner SOLETANCHE FREYSSINET SA
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