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Temperature position-limiting device for railway bridge

A limit device and technology for bridges, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of easy damage, inability to install rail telescopic regulators, heavy maintenance workload of rail telescopic regulators, etc., to achieve reasonable structure, Avoid frequent maintenance and replacement work in the later period, and the effect of novel concept

Pending Publication Date: 2018-01-19
CHINA RAILWAY DESIGN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the line is a curve, the rail telescopic adjuster cannot be installed. At the same time, the rail telescopic adjuster has a large maintenance workload and is easily damaged

Method used

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  • Temperature position-limiting device for railway bridge
  • Temperature position-limiting device for railway bridge
  • Temperature position-limiting device for railway bridge

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Embodiment Construction

[0025] Below, the present invention is described in detail with reference to accompanying drawing and embodiment:

[0026] Such as Figure 1~4 As shown, a temperature limiting device for a railway bridge includes an upper seat plate 2 and a lower seat plate 6, the upper seat plate 2 is connected with the railway main beam structure through anchor bolts 4, and the lower seat plate 6 is connected with the main beam structure of the railway through anchor bolts 4. The railway pier structures are connected, the upper seat plate 2 and the lower seat plate 6 are connected by connecting bolts 5 , and the lower seat plate 6 is provided with a parallel two-way temperature limit block 3 .

[0027] The upper end of the upper seat plate 2 is provided with a pre-embedded steel plate 1 .

[0028] Such as Figure 1~2 As shown, the lower end of the upper seat plate 2 forms an in-line structure, and the in-line structure is inserted between the temperature limit stops 3 .

[0029] The ancho...

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Abstract

The invention discloses a temperature position-limiting device for a railway bridge. The temperature position-limiting device comprises an upper base plate and a lower base plate, wherein the upper base plate is connected with a railway main beam structure by anchoring bolts; the lower base plate is connected with a railway pier structure by the anchoring bolts; the upper base plate is connected with the lower base plate by connection bolts; and the lower base plate is provided with bidirectional temperature position-limiting blocks arranged in parallel. The temperature position-limiting device reduces the temperature span of the beam structure by virtue of a method of controlling a zero position of temperature deformation and can replace a rail expansion adjuster under certain conditions.The temperature position-limiting device solves the problem that the rail expansion adjuster can not be arranged when a line is curved. At the same time, the temperature position-limiting device hasa long service life, and avoids frequent maintenance and replacement work of the rail expansion adjuster in the later period. The invention provides a new technical solution for the long-span railwaybeam when the temperature span is too large and the track stress does not meet the requirements. The temperature position-limiting device has the advantages of reasonable structure, novel concept, good comprehensive economy, high practicability and broad application prospect.

Description

technical field [0001] The invention relates to a device for a railway bridge, in particular to a temperature limiting device for a railway bridge. Background technique [0002] When the temperature span of the railway concrete beam is greater than 200m, and the temperature span of the steel beam is greater than 100m, according to the force requirements of the track, it is necessary to install a rail telescopic regulator. But when the line is a curve, the rail telescopic regulator cannot be arranged, and at the same time, the rail telescopic regulator has a large maintenance workload and is easily damaged. Contents of the invention [0003] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a temperature limiting device for railway bridges. [0004] The technical solution of the present invention is: a temperature limiting device for a railway bridge, comprising an upper seat plate and a lower seat plate, the u...

Claims

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Application Information

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IPC IPC(8): E01D19/12
Inventor 王祯苏伟张雷张上季伟强
Owner CHINA RAILWAY DESIGN GRP CO LTD
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