Bridge pier for mountainous highway bridge, construction method and mountainous highway bridge

A technology for highways and bridges, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as increased construction safety risks, increased costs, and increased pier heights, so as to reduce damage to the original surface, save construction costs, and reduce quantities Effect

Active Publication Date: 2020-02-28
CHINA RAILWAY 12TH BUREAU GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An increase in the height of the pier will inevitably lead to an increase in cost and an increase in construction safety risks

Method used

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  • Bridge pier for mountainous highway bridge, construction method and mountainous highway bridge
  • Bridge pier for mountainous highway bridge, construction method and mountainous highway bridge
  • Bridge pier for mountainous highway bridge, construction method and mountainous highway bridge

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Embodiment Construction

[0068] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0069] The invention aims to reduce the number of buttresses and the height of the piers in the same beam section in this type of terrain environment, and use the original terrain as the bridge support surface as much as possible to reduce the damage to the original landform and the safety risks of construction . The piers of the mountain-side expressway bridge of the present invention all refer to the piers close to the side of the expressway bridge mountain, that is, the piers on the inner side of the expressway bridge. According to the terrain, the piers of the expressway bridge piers have two forms, one is The pier is close to the mountain, and the pier is embedded in the mountain on the side of the mountain; one is that the pier is far away from the mountain, and the pier is separated from the mountain on the side of the mou...

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PUM

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Abstract

The invention discloses a bridge pier for a mountainous highway bridge, a construction method and the mountainous highway bridge. The bridge pier comprises a pier body and a prestressed cover beam. The prestressed cover beam is arranged at the top of the pier body and the end, away from the mountain, of the cover beam is suspended. A first prestressed anchor cable anchored with a mountain body topress the cover beam is embedded in the cover beam, and a second prestressed anchor cable anchored with the mountain body for tensioning the pier body is embedded in the pier body. The construction method comprises pier body construction and prestressed cover beam mounting. The bridge comprises a first beam body, a second beam body, cylindrical pier systems and piers. The first beam body is closeto the mountain body. Each cylindrical pier system comprises a cylindrical pier support beam system and a cylindrical pier cover beam. The first beam body is arranged on prestressed cover beams. The second beam body is arranged on the cylindrical pier cover beams. The first beam body is higher than the second beam body. The first beam body and the second beam body are partially overlapped up and down. The bridge pier, the construction method and the mountainous highway bridge aim to reduce the laying number of the pier body and the height of the pier body in the terrain environment, and the original landform is used as a bridge support surface as much as possible, so that the damage to the original landform is reduced.

Description

Technical field [0001] The invention relates to the field of bridge construction, in particular to a pier of a mountain-side expressway bridge, a construction method and a mountain-side expressway bridge. Background technique [0002] In order to reduce the damage to the surface when the highway crosses the steep mountainous area, the structure of the mountain bridge is currently used for crossing. Such as figure 1 with figure 2 As shown, the main structures are the first beam body 5, the second beam body 6, the cylindrical pier system 7 (including the cylindrical pier supporting beam system 71 and the cylindrical pier cap beam 72), the first beam body 5 and the second beam body 6 respectively Set on the corresponding cylindrical pier cap beam 72. The projected area under the existing separated bridge is equal to the sum of the projected area of ​​the sub-frame bridge deck ( figure 2 In the indicated size B1), within the same beam section range, two sets of cylindrical pier su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 王行苗张逆进邱艺文刘坚罗鹏肖乾珍
Owner CHINA RAILWAY 12TH BUREAU GRP
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