KR20120132084A - Composite bridge and construction method thereof - Google Patents

Composite bridge and construction method thereof Download PDF

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Publication number
KR20120132084A
KR20120132084A KR1020110050688A KR20110050688A KR20120132084A KR 20120132084 A KR20120132084 A KR 20120132084A KR 1020110050688 A KR1020110050688 A KR 1020110050688A KR 20110050688 A KR20110050688 A KR 20110050688A KR 20120132084 A KR20120132084 A KR 20120132084A
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KR
South Korea
Prior art keywords
concrete
permanent formwork
composite
abdominal
girder
Prior art date
Application number
KR1020110050688A
Other languages
Korean (ko)
Inventor
김현수
정영수
김성재
Original Assignee
삼표건설 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼표건설 주식회사 filed Critical 삼표건설 주식회사
Priority to KR1020110050688A priority Critical patent/KR20120132084A/en
Publication of KR20120132084A publication Critical patent/KR20120132084A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125—Grating or flooring for bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

Abstract

PURPOSE: A composite bridge and a construction method thereof are provided to simplify construction and to reduce the danger of safety accidents. CONSTITUTION: A construction method of a composite bridge is as follows. Multiple composite girders(100) are installed on the tops of piers or abutments. The composite girders are formed by placing lower flange concrete(120) on the lower flanges of I-beams(110). Web concrete(130) is placed on the web portions of the composite girders. Permanent forms(200) with arched structures are installed between the top ends of the web concrete of the composite girders. A deck(300) is formed by placing concrete on the web concrete and the tops of the permanent forms.

Description

Composite Bridge and Construction Method {COMPOSITE BRIDGE AND CONSTRUCTION METHOD THEREOF}

The present invention relates to the field of construction, and more particularly, to a structure of a composite bridge and a construction method thereof.

A girder that forms an efficient cross section by combining a steel beam with excellent tensile resistance and concrete with excellent compression resistance is called a composite girder, and a bridge constructed using this is called a composite bridge.

In the related art, a plurality of synthetic girders are installed on a pier or alternator, and a copper bar and formwork are installed therebetween, and then concrete work for reinforcement work and top plate formation is taken thereon.

However, such a conventional method has a problem that the construction is cumbersome, because the work is performed at a high position of the top of the pier, the risk of a safety accident is large.

The present invention has been drawn to solve the above problems, the object of the present invention is to provide a composite bridge and its construction method to simplify the construction and reduce the risk of safety accidents.

In order to solve the above problems, the present invention is a piling 10 at intervals a plurality of the composite girder 100 formed by pouring the lower flange concrete 120 on the lower flange 111 of the I-beam 110 formed by the steel material. Or a compound girder installation step of installing on the shift; An abdominal concrete forming step of placing concrete on the abdomen 112 of the synthetic girder 100 to form abdominal concrete 130; Permanent formwork installation step of installing a permanent formwork 200 of the arch structure produced by the precast method between the upper end of the abdominal concrete 130 of the plurality of synthetic girders (100); It proposes a construction method of a composite bridge comprising a; the upper plate forming step of forming the upper plate 300 by placing concrete on the upper portion of the abdominal concrete 130 and the arch-shaped permanent formwork (200).

At both ends of the permanent formwork 200, it is preferable that the reinforcing bar accommodating part 210 for receiving the reinforcing bar 140 is formed.

The permanent formwork 200 is preferably formed integrally.

In order to achieve the above object, the present invention is formed by pouring the lower flange concrete 120 on the lower flange 111 of the I-beam 110 formed by the steel, and the pier 10 or alternating at a plurality of intervals. Synthetic girder 100 is installed on the top; An abdominal concrete 130 formed by pouring concrete into the abdomen 112 of the synthetic girder 100; Permanent formwork (200) of an arcuate structure manufactured by a precast method to be installed between the upper ends of the abdominal concrete (130) of the plurality of composite girders (100); Presenting a composite bridge comprising a; the upper plate 300 formed by pouring concrete on top of the abdominal concrete 130 and the arched permanent formwork (200).

At both ends of the permanent formwork 200, it is preferable that the reinforcing bar accommodating part 210 for receiving the reinforcing bar 140 is formed.

The permanent formwork 200 is preferably formed integrally.

An object of the present invention is to propose a synthetic bridge and its construction method which is easy to construct and can reduce the risk of safety accidents.

Figure 1 below shows an embodiment of the present invention,
1 to 5 is a process diagram of an embodiment of the construction method of the composite bridge.
6 is a perspective view of a permanent formwork.
7 is a state of use of permanent formwork.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1 or less, the composite bridge according to the present invention is basically formed by pouring the lower flange concrete 120 on the lower flange 111 of the I-beam 110 formed by the steel, and a plurality of Synthetic girder 100 installed on the piers 10 or alternating intervals; An abdominal concrete 130 formed by pouring concrete into the abdomen 112 of the composite girder 100; Permanent formwork of the arched structure made by a precast method to be installed between the upper end of the abdominal concrete 130 of the plurality of synthetic girders 100; The upper plate 300 formed by pouring concrete on top of the abdominal concrete 130 and the arcuate permanent formwork 200; is configured to include.

The construction method of such a composite bridge is as follows.

A plurality of composite girder 100 formed by pouring the lower flange concrete 120 on the lower flange 111 of the I-beam 110 formed by the steel is installed on the pier 10 or the shift at intervals (FIG. 1).

The formwork 131 and the back muscles 132 are installed in the abdomen 112 of the synthetic girder 100 and the concrete is poured to form the abdominal concrete 130 (FIGS. 2 and 3).

Between the upper end of the abdominal concrete 130 of the plurality of synthetic girders 100 is installed a permanent formwork 200 of the arch structure produced by the precast method (Fig. 4).

An abdominal muscle 130 is installed on the upper part of the abdominal concrete 130 and the arcuate permanent formwork 200, and the concrete is poured to form the upper plate 300 (FIG. 5).

In other words, in order to form the top plate after the installation of the composite girder, rather than performing a separate club, formwork installation work, etc. as in the prior art, the prefabricated permanent formwork of the permanent formwork 200 is prefabricated by the abdominal concrete ( 130) is installed between the top, and based on this is to perform the reinforcement and concrete pouring work for the formation of the top plate.

This has the following effects.

First, in order to form the top plate, since it can omit a separate club, formwork installation work, the construction is easy.

Second, because the reinforcement and concrete work of the top plate is carried out on the permanent formwork, not the temporary structure, the risk of safety accidents can be reduced.

Third, since the abdominal concrete 130 is first poured, and then the top concrete is poured by the permanent formwork, the abdominal concrete can be surely filled, thereby obtaining excellent structural stability.

Fourth, since the permanent formwork 200 is formed in an arcuate structure, it can effectively resist the bending moment due to the load generated during the reinforcement work and concrete pouring work on the upper portion.

On both ends of the permanent formwork 200 is formed a reinforcement reinforcing bar receiving portion 210 for storing the reinforcing reinforcement 140, when taking this configuration, by installing the reinforcing reinforcement 140 in the reinforcing reinforcement storage 210 The advantage of being able to place exactly on the reinforcing bar is added (Figs. 6 and 7).

Permanent formwork 200 is formed integrally, thereby eliminating the hinge seam that may occur in the central portion of the top plate 300, the permanent formwork 200 is not only during construction, but also in the present structure after completion of construction, axial force and It is possible to support a part of the bending moment.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10: pier 100: composite girder
110: I beam 111: lower flange
112: web 113: top flange
120: lower flange concrete 130: abdominal concrete
140: reinforced bar 200: permanent formwork
210: power reinforcing bar storage portion 300: the top plate

Claims (6)

A synthetic girder installation step of installing a plurality of composite girder 100 formed by pouring the lower flange concrete 120 on the lower flange 111 of the I beam 110 formed by the steel on the pier 10 or the shift;
An abdominal concrete forming step of placing concrete on the abdomen 112 of the synthetic girder 100 to form abdominal concrete 130;
Permanent formwork installation step of installing a permanent formwork 200 of the arch structure produced by the precast method between the upper end of the abdominal concrete 130 of the plurality of synthetic girders (100);
Forming a top plate 300 by pouring concrete on top of the abdominal concrete 130 and the arched permanent formwork 200;
Construction method of a synthetic bridge containing. The method of claim 1,
Both ends of the permanent formwork 200, the construction method of the composite bridge, characterized in that the reinforcing bar receiving portion 210 is formed to accommodate the reinforcing bar 140. The method of claim 1,
The permanent formwork 200 is a composite bridge construction method, characterized in that formed in one piece. A lower girder concrete 120 is formed on the lower flange 111 of the I beam 110 formed by steel, and is formed on the pier 10 or the alternating girder 100 at a plurality of intervals;
An abdominal concrete 130 formed by pouring concrete into the abdomen 112 of the synthetic girder 100;
Permanent formwork (200) of an arcuate structure manufactured by a precast method to be installed between the upper ends of the abdominal concrete (130) of the plurality of composite girders (100);
An upper plate 300 formed by pouring concrete on top of the abdominal concrete 130 and the arcuate permanent formwork 200;
Composite bridge containing. 5. The method of claim 4,
Both ends of the permanent formwork 200 is a composite bridge, characterized in that the reinforcing bar receiving portion 210 is formed for receiving the reinforcing bar 140 is received. 5. The method of claim 4,
The permanent formwork 200 is a composite bridge, characterized in that formed in one piece.
KR1020110050688A 2011-05-27 2011-05-27 Composite bridge and construction method thereof KR20120132084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110050688A KR20120132084A (en) 2011-05-27 2011-05-27 Composite bridge and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110050688A KR20120132084A (en) 2011-05-27 2011-05-27 Composite bridge and construction method thereof

Publications (1)

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KR20120132084A true KR20120132084A (en) 2012-12-05

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KR1020110050688A KR20120132084A (en) 2011-05-27 2011-05-27 Composite bridge and construction method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695336A (en) * 2015-01-15 2015-06-10 中铁大桥局集团第五工程有限公司 Double-layer cast-in-situ beam support construction method adopting sequence from upper layer to lower layer
CN105839536A (en) * 2016-04-01 2016-08-10 中铁大桥局集团第五工程有限公司 Construction method of cable-stayed bridge pylon
KR102475849B1 (en) * 2022-04-26 2022-12-09 주식회사 길교이앤씨 Steel composite girder, manufacturing method of the same and bridge top construction method using this

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695336A (en) * 2015-01-15 2015-06-10 中铁大桥局集团第五工程有限公司 Double-layer cast-in-situ beam support construction method adopting sequence from upper layer to lower layer
CN104695336B (en) * 2015-01-15 2016-09-28 中铁大桥局集团第五工程有限公司 The double-deck first up and then down stand construction method of Cast-in-situ Beam
CN105839536A (en) * 2016-04-01 2016-08-10 中铁大桥局集团第五工程有限公司 Construction method of cable-stayed bridge pylon
CN105839536B (en) * 2016-04-01 2017-10-27 中铁大桥局集团第五工程有限公司 A kind of construction method of Cable-stayed Bridge Pylon
KR102475849B1 (en) * 2022-04-26 2022-12-09 주식회사 길교이앤씨 Steel composite girder, manufacturing method of the same and bridge top construction method using this

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