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An intelligent deviation correction device and method during the rotation process of a cable-stayed bridge

A deviation-correcting device and technology for cable-stayed bridges, applied in cable-stayed bridges, bridges, bridge forms, etc., can solve the problems of high safety risk, large amount of calculation, and difficult to guarantee accuracy, so as to improve control accuracy, reduce construction risks, and use wide range of effects

Active Publication Date: 2021-05-04
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The counterweight of the traditional anti-swivel structure mostly uses sandbags, lead weights or cast iron, etc., the operation is complicated and the efficiency is low
[0003] At present, the deviation correction method often used in the construction process of the cable-stayed bridge is: use a total station or a level to measure the position information of the swivel through preset data, calculate the construction deviation, and make adjustments according to the calculation results, but the calculation amount of this method is Large, time-consuming and labor-intensive, with high safety risks and difficult to guarantee accuracy
At the same time, the centering correction is mainly manual operation of technicians, lacks an effective early warning mechanism, and the real-time and automation degree need to be further improved

Method used

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  • An intelligent deviation correction device and method during the rotation process of a cable-stayed bridge
  • An intelligent deviation correction device and method during the rotation process of a cable-stayed bridge
  • An intelligent deviation correction device and method during the rotation process of a cable-stayed bridge

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Experimental program
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Effect test

Embodiment 1

[0041] see Figure 1 to Figure 4 (Due to the symmetrical structure at both ends, only the structure of a cantilever end is shown in the accompanying drawings, but it does not affect the understanding and realization of the present invention by those skilled in the art), the intelligent deviation correction device in the cable-stayed bridge rotation process includes four Adjusting sub-devices, a pair of regulating sub-devices are respectively arranged at the two cantilever ends of the main girder 24 of the swivel cable-stayed bridge. The horizontal axis is arranged symmetrically, the two adjusting sub-devices at the left end of the main girder 24 are arranged symmetrically about the longitudinal axis of the bridge, and the two adjusting sub-devices at the right end of the main girder 24 are arranged symmetrically about the longitudinal axis of the bridge;

[0042] The adjustment sub-device includes a Bailey frame 1, a working platform 2, a forward automatic jack 5, a lower pres...

Embodiment 2

[0057] see Figure 1 to Figure 4 (Due to the symmetrical structure at both ends, only the structure of a cantilever end is shown in the accompanying drawings, but it does not affect the understanding and realization of the present invention by those skilled in the art), embodiment 2 repeats embodiment 1, and increases the following structure : At least one laser receiving panel 22 is respectively arranged at the two cantilever ends of the main girder 24 of the swivel cable-stayed bridge; corresponding to each cantilever end, the mirror normal direction of the laser receiving panel 22 is parallel to the longitudinal bridge direction of the main girder 24, and on the main girder 24 Laser emitters 26 corresponding to the laser receiving panels 22 are arranged on adjacent piers 25 on both sides. Use laser transmitter 26 and high-precision laser receiving panel 22 to carry out longitudinal deviation correction control. The reading and processing of the data of the laser transmitte...

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Abstract

The invention discloses an intelligent deviation correction device and method during the rotation process of a cable-stayed bridge, wherein the intelligent deviation correction device includes four adjustment sub-devices, and a pair of adjustment sub-devices are respectively arranged at the two cantilever ends of the main girder, including a Bailey frame , working platform, forward automatic jack, lower pressure sensor, upper steel plate, multi-axis loading device, upper pressure sensor, reverse automatic jack, counter force steel, threaded steel bar; the working platform is set on the Bailey frame, forward automatic jack The top body abuts against the working platform, and the ejector pin abuts against the bottom surface of the main beam through the lower pressure sensor; the upper steel plate is set on the top surface of the main beam, and the multi-axis loading device is set on the upper steel plate, and the top body of the reverse automatic jack and the counter force steel Abutting, the ejector rod abuts against the top surface of the multi-axis loading device through the upper pressure sensor; the reaction force section steel and the Bailey frame are connected by threaded steel bars. The invention has good real-time performance, high intelligence, high construction control precision, simple structure, flexible operation, strong safety and wide application range.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to an intelligent deviation correction device and method during the rotation process of a cable-stayed bridge. Background technique [0002] Swivel construction eliminates the influence of obstacles on bridge construction to a certain extent, which can reduce the construction work time of over-the-line bridges and has little impact on traffic. However, in the construction process of cable-stayed bridge rotation, due to the influence of complex construction procedures, cable force adjustment of cable-stayed cables, and tensioning of prestressed tendons, the quality and stiffness of the cantilever sections on both sides of the main girder are different, so that at the spherical joint produce unbalanced moment difference. In order to ensure the same moment generated by the cantilever section of the main girder at the spherical joint during the swivel process, it is often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/08E01D11/04
CPCE01D11/04E01D21/08
Inventor 王磊彭安银李前名龙俊贤马亚飞韩艳张建仁
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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