Prefabricated ultra-high performance concrete honeycomb arch bridge structure and construction method thereof

An ultra-high performance, bridge structure technology, applied in the field of bridge engineering, can solve the problems such as the inability to effectively guarantee the economy, the quality of the arch bridge is difficult to guarantee, and the rise-span ratio cannot be too small, so as to reduce the demand for formwork, increase the aesthetics, The effect of reducing the difficulty of rebar binding

Pending Publication Date: 2022-05-06
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The survey results on the operation status of arch bridges show that traditional reinforced concrete arch bridges or masonry arch bridges cannot be too small due to their relative bulkiness and high thrust. In addition, due to the cumbersome construction process and long construction period, the quality of arch bridges is also difficult. Guarantee etc.
At present, the use of steel arch bridges in long-span bridges has become a common trend, but there are also problems such as complex structures, high initial construction and installation costs, and high later maintenance costs, which cannot effectively guarantee economic efficiency

Method used

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  • Prefabricated ultra-high performance concrete honeycomb arch bridge structure and construction method thereof
  • Prefabricated ultra-high performance concrete honeycomb arch bridge structure and construction method thereof
  • Prefabricated ultra-high performance concrete honeycomb arch bridge structure and construction method thereof

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Embodiment 1

[0045] Please refer to Figure 1 to Figure 13 , the prefabricated ultra-high performance concrete honeycomb arch bridge structure of the present invention includes an arch unit 1, a rigid frame unit 2, and a bridge deck unit 3, wherein the rigid frame unit 2 is connected to the arch unit 1, and the bridge deck unit 3 is laid on the arch unit 1 and 2 surfaces of the rigid frame unit.

[0046] The arch unit 1 is horizontally prefabricated in segments using ultra-high performance concrete materials. During the prefabrication process, by setting a column structure on the formwork, the formed arch unit has several holes 10. The holes 10 can not only reduce the The weight of the arch unit can also increase the beauty of the bridge. Specifically, the shape of the hole 10 may be circular, oval or other shapes.

[0047] In this embodiment, there are at least two arch units along the transverse bridge of the bridge, which can widen the bridge deck. Correspondingly, the positions, sha...

Embodiment 2

[0067] The structure is basically the same as in Example 1, the difference is that there are three arch units in the transverse bridge direction, and the thickness of each arch unit is 30cm.

[0068] Compared with the prior art, the prefabricated ultra-high performance concrete honeycomb arch bridge structure and construction method thereof provided by the present invention have the beneficial effects of:

[0069] 1. The prefabricated ultra-high-performance concrete honeycomb arch bridge structure provided by the present invention adopts the ultra-high-performance concrete prefabricated arch piece as the main force-bearing member, which can fully exert its ultra-high compressive strength performance, thereby reducing material consumption and structural size, Maximize the slenderness of the arch bridge; and open holes in the middle of the arch unit where the force is less, on the one hand reduce the weight of the arch unit, lower the requirements for the substructure, and reduce...

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Abstract

The invention provides a prefabricated ultra-high-performance concrete honeycomb arch bridge structure which comprises an arch piece unit, a rigid frame unit connected with the arch piece unit and a bridge deck unit laid on the surfaces of the arch piece unit and the rigid frame unit, and the arch piece unit and the rigid frame unit are prefabricated in a segmented mode through ultra-high-performance concrete materials. The bridge deck unit is prefabricated by common concrete or ultra-high performance concrete in sections, the arch piece unit, the rigid frame unit and the bridge deck unit are connected into a whole by filling the ultra-high performance concrete at wet joints, and the arch piece unit is provided with a plurality of holes. The prefabricated ultra-high performance concrete honeycomb arch bridge structure has the advantages of being light in self weight, small in sectional area, high in bearing capacity, capable of saving materials, easy to install, high in construction efficiency, safe, environmentally friendly, low in comprehensive manufacturing cost and the like. The invention further provides a construction method of the prefabricated ultra-high-performance concrete honeycomb arch bridge structure.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a prefabricated ultra-high performance concrete-ordinary concrete honeycomb arch bridge structure and a construction method thereof. Background technique [0002] Arch bridges have the advantages of simple structure, strong spanning ability, and good durability, and have a relatively long history of application in my country. The survey results on the operation status of arch bridges show that traditional reinforced concrete arch bridges or masonry arch bridges cannot be too small due to their relative bulkiness and high thrust. In addition, due to the cumbersome construction process and long construction period, the quality of arch bridges is also difficult. Warranty etc. At present, the use of steel arch bridges in long-span bridges has become a common trend, but there are also problems such as complex structures, high initial construction and installation costs, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D4/00E01D21/00E01D101/24
CPCE01D4/00E01D21/00E01D2101/24
Inventor 赵华谭承君乔东钦邵旭东孙韬周旭东胡俊德
Owner HUNAN UNIV
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