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Configuration structure of prestressed large panel concrete structure steel reinforcement for high-speed rail

A concrete and prestressed technology, applied in the field of prestressed concrete slab structure reinforcement structure, can solve problems affecting the stability and durability of concrete slabs, improve spatial positioning accuracy and firmness, and ensure uniformity and durability, the effect of improving stability and durability

Active Publication Date: 2012-10-10
SILVERY DRAGON PRESTRESSED MATERIALS CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In traditional prestressed concrete slabs, in order to maintain mutual insulation and other technical requirements, the internal structural steel bars will contain steel coatings and plastic insulation cards and other foreign objects that are not suitable for concrete, so that the entire slab shrinks under temperature and stretches under force. Under the conditions, the physical creep of the accompanying concrete under compression and tension is inconsistent with the overall creep, which affects the stability and durability of the concrete slab

Method used

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  • Configuration structure of prestressed large panel concrete structure steel reinforcement for high-speed rail
  • Configuration structure of prestressed large panel concrete structure steel reinforcement for high-speed rail
  • Configuration structure of prestressed large panel concrete structure steel reinforcement for high-speed rail

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific examples.

[0029] Such as figure 1 As shown, the present invention includes structural steel bars and ribs; said structural steel bars include transverse structural steel bars 3 and longitudinal structural steel bars 6; said rib bars include transverse frame ribs 1, transverse internal ribs 2, longitudinal frame ribs 4, Longitudinal internal ribs 5; the structural steel bars and ribs are connected into four layers of structural steel mesh, from top to bottom are the upper horizontal structural steel mesh, the upper longitudinal structural steel mesh, the lower longitudinal structural steel mesh, the lower layer The horizontal structural steel mesh is evenly distributed and densely arranged according to the symmetry of the center of the section, realizing the purpose of multi-point uniform force on the concrete slab; the four-layer structural steel mesh is composed of horizontal frame rib...

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Abstract

The invention provides a configuration structure of prestressed large panel concrete structure steel reinforcement for high-speed rail, wherein the configuration structure adopts four-layered structural reinforcements which are not mutually overlapping jointed, is provided with perforated ribbed bars, and is good in insulating effect. The structural reinforcements and the ribbed bars are connected to be four-layered structural reinforcement meshes which are respectively an upper transverse structural reinforcement mesh, an upper longitudinal structural reinforcement mesh, a lower longitudinal structural reinforcement mesh and a lower transverse structural reinforcement mesh from top to bottom; the four-layered structural reinforcement meshes are all tightly arranged in a manner that the section centers are symmetrical; and transverse frame ribbed bars and longitudinal frame ribbed bars are connected at four corner intersection parts by using bolts. Through changing thoughts of technology and improving application conditions, the configuration structure of the prestressed large panel concrete structure steel reinforcement for the high-speed rail achieves the aims of saving materials, reducing construction costs, and improving the overall performance of large panel concrete.

Description

technical field [0001] The invention relates to a preparation structure of structural steel bars, in particular to a preparation structure of prestressed concrete large slab structural steel bars for high-speed railway construction. Background technique [0002] my country's high-speed railway operation mileage ranks first in the world, and more new railways will be put into operation in recent years, and the high-speed railway passenger dedicated line with a train speed of about 350KM / h will reach 13,000KM. Therefore, the track construction of high-speed railway is very important, and prestressed concrete slabs must be used to lay the foundation. [0003] In traditional prestressed concrete slabs, in order to maintain mutual insulation and other technical requirements, the internal structural steel bars will contain steel coatings and plastic insulation cards and other foreign objects that are not suitable for concrete, so that the entire slab shrinks under temperature and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B1/00
Inventor 谢铁桥谢辉宗艾铁岭田桂华
Owner SILVERY DRAGON PRESTRESSED MATERIALS CO LTD
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