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Arch rib support for large-span steel tube arch bridge assembling construction

A steel tube arch bridge and long-span technology, which is applied in the construction of arch bridges, bridges, and bridges, can solve the problems such as the inability to adjust the height of the support surface, and achieve the effects of cost saving, improving utilization rate and good stability.

Active Publication Date: 2021-02-05
CHINA RAILWAY FIRST GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing supporting arch rib is composed of vertical steel pipes, connecting beams, supporting frames and other components, which has good stability, but the height of the supporting surface cannot be adjusted after the supporting components are fixed

Method used

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  • Arch rib support for large-span steel tube arch bridge assembling construction
  • Arch rib support for large-span steel tube arch bridge assembling construction
  • Arch rib support for large-span steel tube arch bridge assembling construction

Examples

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Embodiment 1

[0030] The invention provides an arch rib support for assembly construction of a large-span steel pipe arch bridge, specifically as Figures 1 to 4 As shown, it includes a base 1 and multiple sets of support units 2 with different heights arranged on the base 1. The adjacent two sets of support units 2 are connected by multiple sets of connection modules 3, and multiple sets of support units 2 form an arched support structure. Multiple sets of supporting units with different heights support the arch ribs;

[0031] Each set of supporting units 2 includes a support frame 21 and a U-shaped brace 22 arranged on the top of the brace 21. The opening of the U-shaped brace 22 faces the length direction of the arch rib. The U-shaped brace 22 is provided with a height adjustment module and a device Height fine-tuning modules on both sides of the height-adjusting module; The top of the force block is an arc-shaped structure matched with the arch rib, and the support is more stable; the ...

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PUM

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Abstract

The invention provides an arch rib support for large-span steel tube arch bridge assembling construction, which belongs to the field of bridge construction. The arch rib support comprises a base and aplurality of groups of support units, two adjacent groups of support units are connected through a plurality of groups of connecting modules, and the plurality of groups of support units form an archsupport structure; openings of U-shaped support plates of the support units face the length direction of the arch rib, and height adjusting modules and height fine adjustment modules arranged on thetwo sides of the height adjusting modules are arranged on the U-shaped support plates. A support plate is arranged at the top of a height adjusting device, and a stress block is arranged at the top ofthe support plate; a rotating shaft support is arranged on each U-shaped support plate, a motor mounting plate is arranged on one side of the rotating shaft support, a motor is fixed on the side wallof the motor mounting plate, one end of a rotating shaft is in transmission connection with an output shaft of the motor, and the other end penetrates through the rotating shaft support and is rotationally connected with the rotating shaft support; a rigid winding is wound on the rotating shaft, and the tail end of the rigid winding is fixedly connected with the bottom of a fine adjustment plate.The support has good stability, and meanwhile the height and the angle of the supporting face can be accurately adjusted.

Description

technical field [0001] The invention belongs to the field of bridge construction, and in particular relates to an arch rib support for assembly construction of a large-span steel pipe arch bridge. Background technique [0002] At present, the concrete-filled steel tube arch bridge is filled with concrete in the steel tube. Due to the radial constraint of the steel tube, the expansion of the compressed concrete is limited, so that the concrete is in a three-dimensional compression state, thereby significantly improving the compressive strength of the concrete. When assembling the arch ribs of an arch bridge, it is usually necessary to temporarily support the arch ribs with the aid of arch rib supports for easy installation. [0003] The existing supporting arch rib is composed of vertical steel pipes, connecting beams, supporting frames and other components, and has good stability, but the height of the supporting surface cannot be adjusted after the supporting components are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D4/00E01D101/30
CPCE01D21/00E01D4/00E01D2101/30
Inventor 赵航飞杨成德敬好健李津刘金果孙伟母延锋张怀牛甫马永佳
Owner CHINA RAILWAY FIRST GRP CO LTD
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