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Multi-layer bridge structure framed bent device and crossed construction method

A technology of bridge structure and frame bending, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc. It can solve problems such as not meeting the construction requirements of multi-layer bridge structures, meet the requirements of smooth traffic, ensure construction safety, and ensure construction progress Effect

Active Publication Date: 2017-10-13
北京市市政一建设工程有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the bent form does not meet the construction requirements of multi-storey bridge structures, and to provide a bent device and a cross construction method of multi-storey bridge structures, which can ensure the construction requirements of construction period, safety and smooth roads

Method used

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  • Multi-layer bridge structure framed bent device and crossed construction method
  • Multi-layer bridge structure framed bent device and crossed construction method
  • Multi-layer bridge structure framed bent device and crossed construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Embodiment 1 of the present invention provides a kind of bent device of multi-storey bridge structure, which is suitable for such as figure 1The multi-storey bridge structure shown has a total of four layers from top to bottom: the first layer is a special-shaped box girder structure, roughly in the shape of a cross, which connects the passing vehicles in four directions. Poured prestressed reinforced concrete structure, pier columns are set under the four corners of the special-shaped box girder structure, numbered respectively B1P10, B1P8, B2-1P6, B2-2P0, B1P9 pier columns are set in the middle of the special-shaped box girder structure; B1P8 pier The column is located on the east side of the special-shaped box girder, connecting the vehicles on the east bridge with the special-shaped box girder; the B1P10 pier column is located on the west side of the special-shaped box girder, connecting the vehicles on the west bridge to the special-shaped box girder; the B2-1P6 pie...

Embodiment 2

[0069] For the case of a three-storey bridge structure where there are building structures (such as stations, exhibition halls, theaters, etc.) in the middle of the main line bridge, and special-shaped box girders need to be set above the building structure to connect the passing vehicles in four directions. Compared with the applicable situation of Embodiment 1, the S2 ramp bridge that is connected with the main line bridge is missing. In this case, the second embodiment is adopted. The difference between the second embodiment and the first embodiment is that the second embodiment no longer includes the full bowl buckle rack arranged at the bottom of the ramp, and the rest are the same as the first embodiment, and will not be described in detail here.

Embodiment 3

[0071] There is an intermediate building structure (such as a station, an exhibition hall, a theater, etc.) in the middle of the main line bridge, and a special-shaped box girder needs to be set above the building structure to connect the passing vehicles in four directions. The present invention also provides a three-story bridge structure The cross-construction method of multi-storey bridge structure, its construction process is as follows Figure 4 shown, including the following steps:

[0072] Step S101, erecting the box girder of the main line bridge, and performing concrete pavement on the bridge deck of the main line bridge based on the box girder of the main line bridge.

[0073] After the prefabricated box girder of the main line bridge is transported to the construction site, it is erected first; then the concrete pavement of the main line bridge deck is carried out based on the box girder of the main line bridge.

[0074] Step S102, constructing the B1P9 pier colum...

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Abstract

The invention relates to a multi-layer bridge structure framed bent device and a crossed construction method. A connection pier full bowl buckle framed bent is set up at the position of a special-shaped box girder connection pier stud; a bailey beam middle support top bowl buckle framed bent and a door opening bowl buckle framed bent are set up on two bridge floors of a main bridge respectively; the two sides of each bridge floor of the bottom of the main bridge are each provided with a steel pipe column support, a bailey beam in the bridge direction is connected to the upper portion of the steel pipe column support, and a bailey bridge stretching over the bridge transverse direction is arranged above the bailey beam in the bridge direction; a beam bottom support is arranged on the bailey beam in the bridge transverse direction is connected with a special-shaped box beam bottom formwork, a middle building is omitted, and the requirement for the bearing capacity and stability of the whole framed bent is met, so that the construction safety and construction schedule are ensured; according to different positions, corresponding framed bents are arranged, so that the construction cost is saved; meanwhile, by arranging the door opening bowl buckle framed bent on the main bridge, the requirement for smooth traffic can be met.

Description

technical field [0001] The invention relates to the technical field of civil engineering construction, in particular to a frame bending device and cross construction technology for multi-layer bridge structures. Background technique [0002] With the progress of society, the transportation network is also growing. Due to the limited space, more and more layers of bridge structures are designed, and the height is also higher and higher. In the construction process of multi-storey bridge structures, the choice of the form of concrete bents used to support the bridge structure and the layout position are particularly important, which will directly affect the construction safety, construction progress, construction cost, and smooth traffic of the multi-storey bridge structure. Wait. [0003] For the middle position of the main line bridge, there are building structures (such as stations, exhibition halls, theaters, etc.), and special-shaped box girders need to be set above the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01C1/04E01D21/00
Inventor 孙强吴进科张鹏周阳文言高明生汪凉吴江张全贺黄振龙刘羽王雄付贵庆高万夫王鹏陈斌陈伟汤明崔宇声王彬张冰崔少光
Owner 北京市市政一建设工程有限责任公司
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