Corner arc track arrangement process

A circular arc track and track technology, which is applied in the field of corner circular arc track layout technology, can solve the problems of inability to use large cranes for installation, inability to approach bridges and turn construction, etc.

Active Publication Date: 2020-08-07
NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the local narrow space, it is not possible to use a large crane to install the approach bridge during the turning construction
[0004] In view of this, it is necessary to provide a corner arc track layout process to solve the problem of turning construction where the bridge approach cannot be carried out in a narrow space

Method used

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  • Corner arc track arrangement process
  • Corner arc track arrangement process
  • Corner arc track arrangement process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment discloses the structure of the corner arc track.

[0045] Such as Figure 2 to Figure 4 As shown, the structure of the corner arc track includes first to third prestressed hollow slab groups 330 and first to fourth prefabricated special-shaped solid slab groups 320; wherein, the first prefabricated special-shaped solid slab group 210 and the second prefabricated special-shaped solid The plate group 220 is spliced ​​along the broken line path of the approach bridge 100, the first prestressed hollow plate group 230 is spliced ​​with the first prefabricated special-shaped solid plate group 210 along the broken line path of the approach bridge 100, and the second prestressed hollow plate group 240 is spliced ​​along the broken line path of the approach bridge 100 splicing with the second prefabricated special-shaped solid plate group 220; side, the first to second prefabricated special-shaped solid slab groups 220 and the first to second prestressed hollow ...

Embodiment 2

[0056] This embodiment discloses the steel platform structure of the present invention.

[0057] Such as Figure 6 to Figure 9 As shown, it includes the lower main beam 1 and the upper distribution beam 3, a plurality of auxiliary piles 2 are fixed under the lower main beam 1, the lower main beam 1 is fixed on the auxiliary piles 2, and the upper distribution beam 3 is fixed on the lower main beam. The upper beam 1; the lower main beam 1 is welded into a trapezoidal shape by multiple H-shaped steels and several first channel steels 12, the H-shaped steels are welded around the first channel steels 12, and the two ends of several first channel steels 12 are respectively connected to different H Shaped steel, several first channel steels 12 weld multiple H-shaped steels into one, and some first channel steels 12 are fixedly connected with auxiliary piles 2; The channel steel 21 is welded into a trapezoidal shape, and several second channel steels 21 are distributed perpendicula...

Embodiment 3

[0062] On the basis of the solution disclosed in Embodiment 2, this embodiment discloses the process of turning the bridge erecting machine from the first turning angle 200 to the second turning angle 300 .

[0063] The bridge erecting machine of the present embodiment preferably utilizes 100 sides of the 13.5m wide approach bridge to allow the bridge erecting machine to realize its own steering in a non-working state.

[0064] The steering steps of the bridge erecting machine are:

[0065] (1) Use 120 wooden squares of 60cm×15cm×15cm as the protective layer (one layer) for the traversing track of the supporting legs and rear supporting legs in the bridge erecting machine to avoid direct contact between the traversing track and the top surface of the prestressed hollow slab.

[0066] (2) Use [32b channel steel temporary welding to widen the width of the middle support and rear support traverse track, and increase the contact area.

[0067] (3) Arrange 2 rails on the wooden si...

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Abstract

The invention provides a corner arc track arrangement process, which divides a corner arc track into three sections, the first section of track is a first prestressed hollow plate group and a first prefabricated special-shaped solid plate group, the second section of track is a second prefabricated special-shaped solid plate group, and the third section of track is a second prestressed hollow plate group; when the first section of track is constructed, the first prestressed hollow plate set is sequentially connected with the linear section of track, then the curvature radius of the arc track of the first prefabricated special-shaped solid plate set is controlled to meet the turning requirement of the beam transporting flatcar, and finally the first prefabricated special-shaped solid plateset is spliced beside the first prestressed hollow plate set. A second section of track is spliced beside the first prefabricated special-shaped solid plate group; a third section of track is splicedbeside the second section of track; and the third section of track is sequentially connected with the direct section of track. Each corner arc rail is divided into three sections to be sequentially installed, the three sections of rails are all prefabricated, and installation of the three sections of rails is sequentially completed on site through a bridge girder erection machine and a steel platform.

Description

technical field [0001] The invention relates to the field of bridge approach construction, in particular to a corner circular arc track layout process. Background technique [0002] Approach bridges are an important component of hydraulic structures. In order to adapt to the unique local terrain when constructing approach bridges, it is inevitable to set turns in them when designing approach bridges. [0003] Due to the limitation of the local narrow space, it is not possible to use a large crane to install the turning construction of the approach bridge. [0004] In view of this, it is necessary to provide a corner arc track layout process to solve the problem of turning construction that cannot be carried out in a narrow space. Contents of the invention [0005] The invention provides a corner arc track layout process. Each corner arc track is divided into three sections and installed sequentially. The three sections of the track are prefabricated, and the three section...

Claims

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Application Information

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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 康湘龙齐有保刘伟方建春杜林郑茂盛
Owner NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD
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