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Method for transporting and erecting precast beam on steep slope of bridge-tunnel connected section of alpine valley region

A prefabricated beam and canyon technology, applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve problems such as transportation difficulties, and achieve the effects of reducing safety risks, facilitating construction, and slowing longitudinal slopes

Active Publication Date: 2020-11-24
SINOHYDRO BUREAU 12 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, for highway bridges in high mountains and canyons, especially for prefabricated beam yards arranged outside the line, transportation becomes a more difficult technical problem

Method used

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  • Method for transporting and erecting precast beam on steep slope of bridge-tunnel connected section of alpine valley region
  • Method for transporting and erecting precast beam on steep slope of bridge-tunnel connected section of alpine valley region
  • Method for transporting and erecting precast beam on steep slope of bridge-tunnel connected section of alpine valley region

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Such as Figure 5 As shown, in the method for transporting and erecting prefabricated beams on the steep slope of the bridge-tunnel connecting section in the mountains and canyons of the present invention, the following processes are specifically included: beam field layout, prefabricated beam production, beam transportation road layout, special beam lifting machine layout, prefabricated beam transportation, and beam lifting Erection, erection machine assembly, prefabricated girder erection.

[0032] Among them, such as figure 1 with figure 2 As shown, the beam field 1 is arranged on a relatively gentle slope near the side of the prefabricated beam to be erected. Preferably, the beam field 1 is arranged near the outer side of the precast beam to be erected, leaving a certain distance from the bridge to meet the ro...

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Abstract

The invention discloses a method for transporting and erecting a precast beam on a steep slope of a bridge-tunnel connected section of an alpine valley region. The method specifically comprises the following processes that a beam fabrication yard is arranged; the precast beam is manufactured; a beam transportation road is arranged; a special beam crane is arranged; a precast beam is transported; the beam is lifted and erected; a bridge girder erection machine is assembled; and the precast beam is erected. According to the method for transporting and erecting the precast beam on the steep slopeof the bridge-tunnel connected section of the alpine valley region, the special beam transporting road is arranged according to circumstances, the beam crane with asymmetric supporting legs is used for construction, the longitudinal gradient of the transportation road is relieved, and safety risks are reduced; the layout is compact, building is convenient, and the temporary ground is saved; and the transportation route is shortened, the work efficiency is effectively improved, and the economic cost is reduced.

Description

technical field [0001] The invention belongs to the field of road and bridge construction, and relates to a method for transporting and erecting prefabricated girders on steep slopes in areas connected by bridges and tunnels in high mountains and canyons in highway projects. Background technique [0002] At present, in the field of highway construction, the superstructure of general highway bridges generally adopts the method of prefabricated beams. The prefabricated bridges are arranged in the beam yard in the line or at a relatively gentle position, and the prefabricated beams are completed by horizontal transportation in the line or a relatively gentle road transportation erection position. Erection. This method is unitary and economical, and can be better used in ordinary road and bridge construction. [0003] However, for highway bridges in high mountains and canyons, especially prefabricated beam yards arranged outside the line, transportation has become a relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 蒋帆刘中文沈仲涛
Owner SINOHYDRO BUREAU 12 CO LTD
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