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A whole-hole beam replacement method

A technology for guiding beams and transporting beams, applied in bridges, bridge construction, bridge maintenance, etc., can solve problems such as unsuitable bridges, and achieve the effects of increasing construction efficiency, reducing impacts, and reducing pollution

Active Publication Date: 2021-06-25
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation work is carried out offline without disturbing the existing lines, but it cannot be applied to bridges in valleys or above rivers

Method used

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  • A whole-hole beam replacement method
  • A whole-hole beam replacement method
  • A whole-hole beam replacement method

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Embodiment Construction

[0043]In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are some, not all, embodiments of the present invention. The specific embodiments described here are only used to explain the present invention, but not to limit the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0044] A whole hole beam frame replacement equipment, comprising:

[0045] refer to Figure 7 , the guide beam 200, the guide beam 200 includes beams 201 respectively arranged on the existing bridges on both sides of the holes to be changed, the two beams 201 are connected by a pair of longitudinal beams 202, and the beams 201 and ...

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Abstract

The invention relates to the technical field of frame replacement of bridges, in particular to a method for frame replacement of whole hole beams. It includes the following steps: Step 1, equipment entering the site; Step 2, equipment in place; Step 3, removing old beams; Step 4, installing new beams. The replacement beams of this application are assembled in the beam field to reduce pollution to the construction site. At the same time, the overall beam replacement of the whole hole beam can be completed at one time, which increases the construction efficiency and is conducive to efficient use of time at the skylight point. The beam replacement process can be carried out on the ground, which can realize the beam replacement construction under various terrain and environmental conditions. The preliminary preparation requirements are less, reducing the impact on existing lines.

Description

technical field [0001] The invention relates to the technical field of frame replacement of bridges, in particular to a method for frame replacement of whole hole beams. Background technique [0002] With the increasing operation time of railways and highways in our country, the safety impact of bridge aging on the operation of existing lines (already built lines) has become increasingly prominent. Some bridges that have not been built for a long time have to be replaced because their strength or stiffness cannot meet the requirements due to the continuous speed increase of existing lines, especially the main trunk lines, and the need for heavy-duty trains. Due to the poor manufacturing and installation quality of certain bridges, some bridges with diseases also occur every year. [0003] In addition, my country used a large number of steel girders in the past railway manufacturing. The service life of these steel girders is significantly lower than that of concrete girders...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 王治斌杨岳勤王清明周光忠梁志新蒋中明
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP CO LTD