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Arc support combined template used for cast-in-place box beam and erecting method thereof

A technology of arc-shaped brackets and combined templates, which is applied in bridge construction, bridge erection/assembly of bridges, etc. It can solve the problems of high cost, heavy transportation tasks, and low efficiency, and achieve high utilization rate, convenient and safe dismantling, and light structure Effect

Inactive Publication Date: 2019-08-23
陕西路桥集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an arc-shaped support combination formwork for cast-in-place box girders, which solves the heavy lifting and transportation tasks of steel formwork and support for the side formwork (web formwork and wing formwork) of cast-in-place box girder in the prior art. low cost problem

Method used

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  • Arc support combined template used for cast-in-place box beam and erecting method thereof
  • Arc support combined template used for cast-in-place box beam and erecting method thereof
  • Arc support combined template used for cast-in-place box beam and erecting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Please refer to figure 1As shown, an arc-shaped bracket combination formwork for cast-in-place box girders, in this embodiment, the arc-shaped bracket combination formwork includes several arc-shaped brackets 1, multiple square timbers 3, and cast-in-place box girder side formwork 2 composition. Several arc-shaped brackets 1 are evenly arranged along the direction of the bridge, and a plurality of square timbers 3 are detachably fixed on the upper part of the arc-shaped body 4 of the arc-shaped bracket 1 through fixing parts (steel wires, plastic ropes, hemp ropes, etc.). A plurality of square logs 3 are evenly laid along the lower end to the upper end of the arc-shaped body 4 . The square wood 3 is used to connect several arc-shaped supports 1 into a whole, and the square wood 3 provides a laying support surface for the cast-in-place box girder side formwork 2 .

[0044] After fixing the arc-shaped support 1 and the square timber 3 along the direction of the bridge, ...

Embodiment 2

[0052] Wherein, as a further improvement to Embodiment 1, in order to make the arc-shaped bracket combined formwork suitable for the construction of various structures of cast-in-place box girders, it is convenient to adjust the radian of the arc-shaped bracket combined formwork. The arc-shaped support 1 also includes an adjustment part 10, which is formed by extending downward from the free end of the web formwork support part 6, and the adjustment pad 9 and the adjustment part 10 are used to adjust the angle of the side formwork 2 of the cast-in-place box girder. Further, when the arc-shaped support 1 is set, according to the setting angle of the cast-in-place box girder side formwork 2 (web formwork and wing formwork), it is adjusted through the adjustment part 10 and different adjustment pads 9 are set at the free end of the bottom plate 8, Make the arc-shaped support 1 conform to the inclination angle of the side formwork 2 (web formwork and wing formwork) of the cast-in-p...

Embodiment 3

[0055] In Embodiment 1 and Embodiment 2, a 1.2m-high cast-in-place box girder is taken as an example to describe the arc-shaped bracket combined formwork in detail.

[0056] Among them, the arc-shaped body 4 of the arc-shaped bracket 1 is made of a square steel pipe with a diameter of φ4.8 and an anti-corrosion and anti-rust treatment. The length of the wing template support part 5 is 135 cm; the length of the arc bending part 7 is 42 cm. , and the arc bending part 7 is formed by bending 30° by a bending machine; the length of the abdominal template support part 6 is 52cm. The bottom plate 8 of the arc support 1 is formed by channel steel or I-beam, and the length of the bottom plate 8 is 150cm. In order to strengthen the strength of the channel steel or I-beam, reinforcing ribs are also provided on the channel steel or I-beam. The protective leg 11 of arc support 1 is upwardly welded on the upper end of arc body 4 by φ 3.0 steel pipe.

[0057] Both the vertical support body...

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Abstract

The invention belongs to the technical field of bridge building engineering construction, and particularly discloses an arc support combined template used for a cast-in-place box beam and an erectingmethod thereof. The arc support combined template comprises multiple arc supports, the arc supports are evenly arranged in the direction of a bridge, and multiple pieces of square timber located on anarc body of the arc support are included and are evenly laid from the lower end to the upper end of the arc body; through the square timber, the arc supports are connected into a whole, the laying supporting face is provided for a side template of the cast-in-place box beam, the cross section of the arc body is in a square or oval shape, the arc body is in face contact with the square timber, theside template of the cast-in-place box beam is formed through sequential connection of multiple bamboo plywood, and the bamboo plywood is fixed to the upper surface of the square timber through nails. Due to use of the arc support combined template, the appearance of the cast-in-place box beam is attractive, the line type is smooth, in the construction, use of mechanical devices like a crane is little, and construction cost is low.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering construction, in particular to an arc-shaped bracket combination formwork for cast-in-place box girders and a method for erecting the same. support. Background technique [0002] With the rapid development of my country's transportation industry and urban construction, especially in the context of the continuous development of the transportation industry and the continuous growth of traffic flow, a large number of overpasses and level crossing bridges have been built. Prefabricated box girders and cast-in-place box girders are generally used in domestic bridge construction methods. With the gradual advancement of expressways and railways to mountainous areas, the number of large continuous bridges continues to increase, and the application of cast-in-place box girder reinforcement cages is increasing. [0003] At present, cast-in-place steel beams are constructed by using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D2/04
CPCE01D2/04E01D21/00
Inventor 轩飞朋刘建锋闫锐冀敏锋李荆
Owner 陕西路桥集团有限公司
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