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Two-dimensional combination trussing bridge tower structure

A technology of combining rods and bridge towers, which is applied in the direction of bridges, cable-stayed bridges, bridge parts, etc., can solve the problems of increasing the cross-sectional size of bridge towers, increasing reinforcement, increasing the design of main girders, and construction difficulty, so as to reduce construction difficulty , enhance the carrying capacity, reduce the effect of material consumption

Inactive Publication Date: 2019-06-28
CCCC HIGHWAY CONSULTANTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the structural form of the traditional bridge tower, the force of the bridge tower structure is determined to be a compression-bending member. Ribs, etc.
At the same time, in order to improve the traffic capacity of the cable-stayed bridge, the section of the main girder is wider, which increases the difficulty of the design and construction of the main girder.
If the framing main beam is used to reduce the cross-sectional size of the main beam, but it is necessary to add tower columns to meet the force requirements

Method used

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  • Two-dimensional combination trussing bridge tower structure
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Embodiment 1

[0022] Such as figure 1 As shown, in the present embodiment, a two-dimensional combined bar system pylon structure includes two pylon foundations 1, two inner lower pylons 2 respectively arranged on the two pylon foundations 1 and symmetrically arranged, two An outer pylon 3 arranged symmetrically on two pylon foundations 1, an inner upper pylon 4 respectively connected between the free ends of the inner lower pylon 2 and the outer pylon 3 free ends, the two inner lower pylons The ends of the pylons 2 away from the bridge pylon foundation 1 are connected to each other, and the inner lower pylon 2 is located on the inner side of the outer pylon 3 .

[0023] During construction, first construct two bridge tower foundations 1, and then construct the inner lower tower column 2, one end of the inner lower tower column 2 is fixedly connected with the bridge tower foundation 1, and the free ends of the two inner lower tower columns 2 are connected to each other, so that the inner sid...

Embodiment 2

[0027] On the basis of the above embodiments, in this embodiment, the outer tower column 3 is arranged inwardly and upwardly, and the inner lower tower column 2 is arranged inwardly and upwardly. In this way, the center of gravity of the outer tower column 3 and the inner lower tower column 2 can be approached to the symmetrical plane of the two bridge tower foundations 1, and the two inner lower tower columns and the foundation form a triangular structure, so that the inner lower tower column and the bridge tower The foundation plays the main supporting role, and because the two inner lower towers can support each other, it is beneficial to prevent the outer towers from turning over and tipping, and the structural stability is strong. Furthermore, by inclining the outer tower column 3 and the inner lower tower column 2 , the center of gravity of the outer tower column 3 and the inner lower tower column 2 can be lowered, thereby improving overall stability.

Embodiment 3

[0029] On the basis of the above-mentioned embodiment, in this embodiment, the inner upper tower column 4 has a tendency to overturn due to the pressure of the outer tower column 3, so that the ends of the two inner upper tower columns 4 close to the inner lower tower column 2 are connected to each other , the two inner upper tower columns 4 can be used to limit and support each other to offset the tendency of the two inner upper tower columns 4 to overturn and displace, thereby maintaining stability, which is conducive to saving additional support structures, reducing construction costs, Reduce material consumption and other effects. The connecting surface of the two inner upper tower columns 4 is designed as a vertical plane coplanar with the symmetrical plane of the two bridge tower foundations 1, which is beneficial to balance the forces on both sides to enhance stability.

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Abstract

The invention discloses a two-dimensional combination trussing bridge tower structure. The structure comprises two bridge tower foundations, two symmetrically-arranged inner-side lower tower columns arranged on the two bridge tower foundations respectively, two symmetrically-arranged outer-side tower columns arranged on the two bridge tower foundations respectively and inner-side upper tower columns connected between the free ends of the inner-side lower tower columns and the free ends of the outer-side tower columns respectively. The ends, away from the bridge tower foundations, of the two inner-side lower tower columns are connected, and the inner-side lower tower columns are located at the inner sides of the outer-side tower columns. The two-dimensional combination trussing bridge towerstructure has the advantages that application of a supporting structure can be reduced, so that the structure is simplified, and the structure helps to improve the construction efficiency, lower theconstruction cost, shorten the construction period, lower the construction difficulty and reduce material consumption.

Description

technical field [0001] The invention relates to the technical field of bridge pylons, in particular to a two-dimensional combined bar system pylon structure. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's requirements for traffic capacity and bridge landscape, bridge spans and bridge deck widths are becoming larger and larger. In addition to being the main building for traffic, the bridge is also a symbol of a city to a certain extent. The cable-stayed bridge not only has a large spanning capacity, but also has a beautiful shape. It is one of the most competitive bridge types among highway and urban bridges in recent years. Cable-stayed bridges are composed of pylons, main girders, cables, and foundations. In order to adapt to different construction conditions, traffic capacity, and landscape requirements, the appearance of the main girders is also different, and the shape of the bridge pylons is v...

Claims

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Application Information

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IPC IPC(8): E01D19/14E01D11/04
Inventor 孟凡超王梓夫赵英策郭慧乾郝海龙冯清海
Owner CCCC HIGHWAY CONSULTANTS
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