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Prefabricated track slab combined track beam

A technology of track slabs and track beams, applied in the field of track beams, can solve the problems of high cost and high structural height, and achieve the effects of simple shape, reduced construction difficulty, and improved noise directivity

Inactive Publication Date: 2010-06-09
SHANGHAI MAGLEV TRANSPORTATION DEVELOPMENT CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This scheme has a high structural height and high cost, and is only used in the cross-river section

Method used

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  • Prefabricated track slab combined track beam
  • Prefabricated track slab combined track beam
  • Prefabricated track slab combined track beam

Examples

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Embodiment Construction

[0029] based on the following figure 2 and image 3 , to further illustrate the preferred embodiment of the present invention.

[0030] Such as figure 2 As shown, it is a prefabricated track slab combined with a track beam 20 of the present invention, the upper part of which is a prestressed track slab 22, and the lower part is a prestressed groove-shaped support beam 21. The two are post-cast by reinforced concrete, effectively combined into one structure, and jointly bear load.

[0031] Two notches 221 are reserved on the track plate 22 , and the grid-like steel bars 2211 are exposed in the notches 221 , and the positions of the notches 221 correspond to the positions of the support beam webs 211 . During pouring, a set of steel molds with adjustable cross slopes are made. The position of the embedded part of the track function area 222 and the position of the notch 221 of the track plate 22 are reserved on the mold, and a certain accuracy can be guaranteed. In the tra...

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Abstract

The invention relates to a prefabricated track slab combined track beam which comprises a track slab and a support beam; a notch is preserved on the track slab, and a grid type steel bar is exposed in the notch; the support beam is a U-shaped beam, a web plate of the support beam is arranged below the track slab, and a plurality of vertical dowel bars are vertically arranged at the top end of the web plate; and the track slab is arranged on the support beam, the web plate is used for positioning the notch, the plurality of vertical dowel bars on the web plate are anchored in the grid type steel bar of the notch of the track slab, and concrete is used for filling the notch of the track slab, thereby solidifying the track slab and the support beam into a whole. The track slab and the support beam are separately manufactured in the prefabricated track slab combined track beam, the field positioning, the splicing and the pouring of the concrete are sequentially carried out, and the whole is finally formed, thereby limiting the part which needs to be processed at the track slab, greatly reducing the requirements on processing equipment and transportation, simultaneously preserving the notch on the track slab, adopting the way of inserting the track slab into the U-shaped beam and further reducing the construction height.

Description

technical field [0001] The invention relates to a track beam in a maglev transportation system, in particular to a prefabricated track slab combined with a track beam. Background technique [0002] At present, the track beam structure adopted by the maglev Shanghai demonstration line is a composite beam, please refer to figure 1 As shown, the composite track beam 10 in the prior art is composed of a support beam 12 and steel functional components 14 arranged on both sides of the support beam 12 , and a diagonal web 11 is provided at the lower part of the support beam 12 . That is to say, the functional area is a prefabricated integral steel functional part, which is composed of a sliding plate, a guide plate, a stator wing plate, a functional part web, and a partition. The pre-embedded connectors 13 in the concrete beams are machined and connected to the functional parts by bolts. According to the precise coordinate positioning of the connectors machined, the curved surface...

Claims

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Application Information

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IPC IPC(8): E01D2/00
Inventor 吴祥明房庆强周质炎万建军颜克明窦仲赟叶丰陈定祥成广伟李文沛曾国锋
Owner SHANGHAI MAGLEV TRANSPORTATION DEVELOPMENT CO LTD
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