A suspension rod replacement structure and replacement method of a reinforced concrete under-supported arch bridge

A technology of reinforced concrete and suspenders, applied in the field of bridge engineering, can solve the problems of bridge traffic interruption, time-consuming and labor-intensive, etc.

Active Publication Date: 2022-04-19
兰州交通大学工程检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a suspension rod replacement structure of a reinforced concrete under-supported arch bridge and a replacement method thereof, so as to solve the problem that the single suspender of a reinforced concrete under-supported arch bridge needs to be replaced by a temporary tensioning and dragging device, bridge traffic needs, etc. Disruption, time-consuming and labor-intensive problems

Method used

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  • A suspension rod replacement structure and replacement method of a reinforced concrete under-supported arch bridge
  • A suspension rod replacement structure and replacement method of a reinforced concrete under-supported arch bridge
  • A suspension rod replacement structure and replacement method of a reinforced concrete under-supported arch bridge

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Embodiment

[0033] Such as Figure 1-3 As shown, a reinforced concrete under-supported arch bridge suspender replacement structure includes a suspender, an arch rib 2, and a beam 3, and the suspender is arranged between the arch rib 2 and the beam 3; The boom member 1 includes a first anchor rod 11, a first cable branch plate 12, a boom 15, a second cable branch plate 18, and a second anchor rod 19 arranged in sequence from top to bottom; the first anchor rod 11 is provided with In the arch rib interface 21 on the arch rib 2, the second anchor rod 19 is arranged in the beam interface 31 on the beam 3; a suspender anchor head 13 is arranged between the suspender 15 and the first branch cable plate 12, and the suspender A screw set 16 is provided between the rod 15 and the second cable branching plate 18 .

[0034] Specifically: the boom anchor heads 13 are a group, and the top ends of the boom anchor heads 13 are all installed on the first branch cable plate 12 through the fixing part 14,...

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Abstract

The invention discloses a suspension rod replacement structure of a reinforced concrete under-supported arch bridge and a replacement method thereof, which belong to the technical field of bridge engineering and solve the problem that a temporary tensioning and dragging device is needed in the replacement of a single suspender of a reinforced concrete under-supported arch bridge , Bridge traffic needs to be interrupted, time-consuming and labor-intensive problems. The device includes suspenders, arch ribs, and beams. The suspenders are arranged between the arch ribs and the beams. The suspenders are double suspender components. Plate, suspender, second cable branch plate, second anchor rod, a boom anchor head is provided between the suspender and the first cable branch plate, and a screw is provided between the suspender and the second cable branch plate suite. Methods include primary replacement and secondary replacement. The invention can realize the replacement of suspenders one by one by using the portable equipment, which can not only ensure the rationality of the force of the bridge structure, but also bring great convenience to the cable replacement construction.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a suspension rod replacement structure of a reinforced concrete under-supported arch bridge and a replacement method thereof. Background technique [0002] Among the concrete-filled steel tube arch bridges, under-supported arch bridges are commonly used in bridge structures, and more than 400 have been completed and put into operation. A large number of single suspender structures are designed for this structure. Suspenders, as one of the most important force-transmitting components of mid- and under-through arch bridges, have an important impact on the operational safety of the bridge. Generally, the design reference period of large-span concrete-filled steel tube under-supported arch bridges is 100 years, and the design service life of suspenders is 20 to 25 years. Therefore, there will be replacement of suspenders during the operation of arch bridges, bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00E01D4/00
CPCE01D22/00E01D4/00
Inventor 刘世忠董长军冯志勇陶永贵俞培莉孙建军王文哲王波毛亚娜徐浩
Owner 兰州交通大学工程检测有限公司
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