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A device for improving the stress distribution of a swivel cable-stayed bridge and its installation method

A technology for stress distribution and cable-stayed bridges, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of reducing the stress in the consolidation area of ​​the main girder and the unbalanced stress distribution in the consolidation area of ​​the tower, pier, and girder, so as to solve the problem of stress distribution Imbalance, increase horizontal connection, reduce stress effect

Active Publication Date: 2021-06-01
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0006] In the above scheme, the steel truss can effectively improve the lateral connection of the bridge tower and reduce the stress in the consolidation area of ​​the main girder; Effectively solve the problem of unbalanced stress distribution in the tower pier beam consolidation area of ​​cable-stayed bridges and play a buffer role in the possible instability during the rotation construction process

Method used

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  • A device for improving the stress distribution of a swivel cable-stayed bridge and its installation method
  • A device for improving the stress distribution of a swivel cable-stayed bridge and its installation method
  • A device for improving the stress distribution of a swivel cable-stayed bridge and its installation method

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Embodiment Construction

[0029]The present invention will be further described below with reference to the accompanying drawings and examples.

[0030]Such asFigure 1 ~ 7As shown, an apparatus for improving the spridge stress distribution of the transang, including an upper bearing 1, a main bridge 2, a lower bridge tower 3, a first nut 4, a steel truss 5, a steel plate 6, a branch mechanism 7, a main beam 8, planting bolt 9. The main bridge 2 is fixed to the upper platform 1, and the lower bridge column 3 is located on the main bridge 2, and the main beam 8 is fixed above the lower bridge tower 3.

[0031]There is a bib hole in the inside of the lower bridge 3, and the steel truss 5 is provided in the middle of the lower bridge 3, and one end of the biller anchor 9 is inserted into the graft hole, and the bonding, the bib bolt 9 is bonded by plant gum. The other end is inserted into the through hole on the inside of the steel truss 5, and is fixed by the first nut 4 and the steel truss 5, so that the lower bridg...

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Abstract

The invention discloses a device for improving the stress distribution of a swivel cable-stayed bridge and an installation method thereof. The device includes a steel truss, and two sides of the steel truss are provided with anchors for connecting with the lower tower of the cable-stayed bridge. A steel plate is fixed on the steel truss, and a force applying mechanism is arranged on the upper surface of the steel plate. The steel truss of the present invention can effectively improve the lateral connection of bridge towers, increase the negative moment bearing capacity of bridge towers, and improve the stability of swivel construction; The stress distribution in the pier-beam consolidation area reduces stress concentration; at the same time, the force-applying mechanism can also adjust the unbalanced moment difference caused by the bridge rotation in the pier-beam consolidation area. The invention combines the steel truss and the force-applying mechanism, can effectively improve the stress condition in the consolidation area of ​​the main girder of the swivel cable-stayed bridge, and effectively guarantee the stability and safety of the swivel cable-stayed bridge during construction and operation.

Description

Technical field[0001]The present invention belongs to the field of bridge construction techniques, and in particular, the present invention relates to a bridge structure, and more particularly to an apparatus for improving the stress distribution of a swagrous bridge.Background technique[0002]The emergence of the cable-stayed bridge steam construction method has enriched the construction process of the cable-stayed bridge, overcomes the impact of obstacles on the construction of bridges to some extent. In order to improve the curved stiffness and integrity of the cable-stayed bridge, the stability of the reinforcing sprigon construction is reduced, and the longitudinal displacement of the main beam span, and the bridge is used to consolidate the rigid system. The working conditions at the tunnel solid joint directly affect the overall stiffness and stability of the cable-stayed bridge. If stress concentration or damage occurs, it will affect the construction safety of the cable-stay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00E01D21/08E01D19/14
CPCE01D19/00E01D19/14E01D21/08
Inventor 马亚飞周海洋李前名龙俊贤彭安银王磊张建仁
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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