Prestressed concrete sleepers and method for transporting and installing a switch with prestressed concrete sleepers

A concrete and prestressed technology, applied in the direction of switch, track, road, etc., can solve the problems of complexity, economical use, high cost, etc., and achieve the effect of simplifying transportation

Inactive Publication Date: 2014-10-29
DB NETZ +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this connection device is that it is more complicated, so the cost is higher, so its economical use is problematic.

Method used

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  • Prestressed concrete sleepers and method for transporting and installing a switch with prestressed concrete sleepers
  • Prestressed concrete sleepers and method for transporting and installing a switch with prestressed concrete sleepers
  • Prestressed concrete sleepers and method for transporting and installing a switch with prestressed concrete sleepers

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 A plan view of a prestressed concrete sleeper 1 is shown, which has sleeper sections 2 , 3 which are connected in a flexurally rigid manner by connecting devices 6 embedded in the sleeper ends 4 , 5 .

[0027] Each sleeper section 2 , 3 has a plurality of prestressing wires 7 via which the sleeper sections 2 , 3 are acted upon with a prestressing force in the form of pressure. The mounting of the rails takes place via a plurality of through holes, of which only one through hole 8 in the sleeper 3 is shown for the sake of simplicity.

[0028] In the exemplary embodiment shown, the welded steel connection means 6 each comprise four steel bars 9 which are arranged in the longitudinal direction of the prestressed concrete sleeper 1 and which are welded to the end plates 10 . The end plate 10 ends flush with the outer sides of the sleeper sections 2 , 3 . On the outer side of the end plate 10 there are welded webs 11 through which fastening screws 13 can be insert...

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Abstract

The invention relates to a prestressed concrete sleeper, having at least two sleeper sections that can be coupled or are coupled rigidly by a connection device embedded in the sleeper heads, wherein the sleeper sections each comprise a concrete in the region adjacent to the connection device which has a higher rigidity than the concrete in the other regions

Description

technical field [0001] The invention relates to a prestressed concrete sleeper having at least two sleeper sections which are connected in a flexurally rigid or connectable manner by means of a connecting device embedded in the sleeper body. Background technique [0002] In the past, point switches were assembled at predetermined installation locations from separately provided concrete ties, rails, and point point linkages. Due to the high precision required, the switch is completely pre-assembled in the manufacturing plant for inspection, which is a labor-intensive process. Therefore, it has already been proposed to transport the preassembled switch to the construction site in the preassembled state and to install it. However, the size of the switch exceeds the available truck bed, so instead, the pre-assembled switch is disassembled so that it can be transported. The assembly and installation of the switch is then carried out at the installation site. [0003] From EP 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B3/34E01B7/22
CPCE01B3/34E01B7/22Y10T29/49826
Inventor F·申普夫H-D·米勒
Owner DB NETZ
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