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Rail Transit Bridge Steel Girder Girder Girder Seam Support Adjustment System and Erection Method for Sleepers

A technology for rail transit and steel girders, applied in bridge construction, bridges, bridge materials, etc., can solve problems such as sleeper deformation and loss

Active Publication Date: 2019-11-26
CHINA MAJOR BRIDGE ENERGINEERING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When erecting sleepers at the steel girder joints between the steel girders at the bridge piers of long-span cross-river bridges, the existing practice is that the sleepers are fixed on the steel girders of the bridge pier by locking, and the displacement or longitudinal deformation between the beams may cause Deformation loss of sleeper

Method used

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  • Rail Transit Bridge Steel Girder Girder Girder Seam Support Adjustment System and Erection Method for Sleepers
  • Rail Transit Bridge Steel Girder Girder Girder Seam Support Adjustment System and Erection Method for Sleepers
  • Rail Transit Bridge Steel Girder Girder Girder Seam Support Adjustment System and Erection Method for Sleepers

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0028] see figure 1 , 2 As shown in and 3, an embodiment of the present invention provides a sleeper support adjustment system at the steel girder joint of a rail transit bridge, including:

[0029] Steel girders 1 at the two bridge piers, the two steel girders 1 are arranged along the bridge direction, with girder gaps in the middle; both ends of the steel girder 1 are provided with stiffening ribs 11;

[0030] Two connecting small beams 2, the two ends of the connecting small beams 2 are respectively fixed on the stiffeners 11 at both ends of the steel beam 1;

[0031] Two movable small longitudinal beams 3, the two ends of the movable small longitudinal beams 3 are respectively placed on the two connecting small beams 2, and they can move on the connecting small beams 2; the lower surface of the movable small longitudinal beams 3 is provi...

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Abstract

The invention provides a system for supporting and adjusting sleepers at rail traffic bridge steel beam crevices and an erection method thereof and relates to the technical field of bridge design construction. Small connected cross beams and small movable longitudinal beams are erected at steel beam ends respectively, the small movable longitudinal beams can produce limited displacements on the small connected cross beams, sleepers are erected on the steel beams and the small movable longitudinal beams, gauge adjusting devices are arranged among the sleepers in a beam crevice range, the smallmovable longitudinal beams and the gauge adjusting devices jointly and automatically adjust separation distances of the sleepers during dislocation or longitudinal deformation of the beams, and a sleeper erection system having coordinative deformation capability is achieved.

Description

technical field [0001] The invention relates to the technical field of bridge design and construction, in particular to a sleeper support adjustment system at a steel girder joint of a rail transit bridge and an erection method thereof. Background technique [0002] The purpose of building a rail transit network is to ensure the smooth and fast travel of citizens, and to provide passengers with a safe, convenient and comfortable environment. With the continuous expansion of the urban rail transit network, in Wuhan, Nanjing, Shanghai, Chongqing and other cities, the urban rail transit is likely to encounter the long-span bridge crossing scheme. When erecting sleepers at the steel girder joints between the steel girders at the bridge piers of long-span cross-river bridges, the existing practice is that the sleepers are fixed on the steel girders of the bridge pier by locking, and the displacement or longitudinal deformation between the beams may cause Deformation loss of slee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/12E01D21/00E01D101/30
CPCE01D19/12E01D21/00E01D2101/30
Inventor 马舜胡骏陆金海周小涵刘厚军刘承虞
Owner CHINA MAJOR BRIDGE ENERGINEERING
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