KR101864004B1 - Rahmen bridge structure having air ball - Google Patents

Rahmen bridge structure having air ball Download PDF

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Publication number
KR101864004B1
KR101864004B1 KR1020160027627A KR20160027627A KR101864004B1 KR 101864004 B1 KR101864004 B1 KR 101864004B1 KR 1020160027627 A KR1020160027627 A KR 1020160027627A KR 20160027627 A KR20160027627 A KR 20160027627A KR 101864004 B1 KR101864004 B1 KR 101864004B1
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KR
South Korea
Prior art keywords
air ball
slab
reinforcing bar
ball
air
Prior art date
Application number
KR1020160027627A
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Korean (ko)
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KR20170105150A (en
Inventor
장흥균
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장흥균
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Publication date
Application filed by 장흥균 filed Critical 장흥균
Priority to KR1020160027627A priority Critical patent/KR101864004B1/en
Publication of KR20170105150A publication Critical patent/KR20170105150A/en
Application granted granted Critical
Publication of KR101864004B1 publication Critical patent/KR101864004B1/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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • 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
    • 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
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a ramen bridge having an air ball on a slab, and an air ball is formed in the slab to reduce the weight of the overall bridge, thereby further increasing the span length.
In order to accomplish this, the present invention provides a ramen bridge having a structure in which an alternation 20 is integrally extended at both ends of a slab 10, wherein the slab 10 has a plurality of And the air ball 11 of the second embodiment is embedded.

Description

{RAHMEN BRIDGE STRUCTURE HAVING AIR BALL}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ramen bridge, and more particularly, to a ramen bridge having an air ball provided inside the slab to reduce the weight of the bridge slab.

Generally, ramen bridges are widely used as overbridge that allows to cross over roads, railways, rivers, and so on. The ramen bridge is particularly suitable for traversing such roads, railways, small rivers and the like when the width is about 12 m, especially when passing the lower part of the main line.

As a conventional example of such a ramen bridge, the utility model registration No. 286023 discloses a technique related to a concrete ramen bridge.

However, since the ramen bridge has a structure governed by the bending moment and the shear force, when the span becomes large, the tension of the concrete and the crack are generated due to the self weight of the concrete constituting the slab. Therefore, There is a big limitation in span.

Therefore, such a conventional ramen bridge generally has a problem in that it is difficult to apply to a span exceeding 18 m.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems in the prior art, and it is an object of the present invention to increase the span length of a ramen bridge by forming an air ball on a slab so as to reduce the weight of the slab concrete.

To achieve the above object, according to the present invention, there is provided a ramen bridge having a structure in which alternating portions are integrally extended at both ends of a slab, wherein a plurality of air balls forming a space portion are embedded in the slab.

The ramen bridge of the present invention has the effect of increasing the span length by reducing the weight of the entire bridge by forming an air ball inside the slab.

1 is a schematic structural view of a ramen bridge according to a first embodiment of the present invention;
2 is an enlarged cross-sectional view of part A of Fig.
3 is an enlarged sectional view of an air ball in the present invention.
FIG. 4 is a view showing a rebar connection state of an air ball according to a second embodiment of the present invention. FIG.
5 is a detailed view of the air balloon section in the second embodiment of the present invention.
6 is an enlarged view of a portion B in Fig.
7 is a state before the air ball of the present invention is connected to a reinforcing bar;
8 is a state in which the air ball of the present invention is connected to a reinforcing bar;
9 is a detailed view of an air ball cross-section in a third embodiment of the present invention.
10 is a structural view of an internal spring part in a third embodiment of the present invention.
Fig. 11 is a state in which the air ball is deformed in the third embodiment of the present invention. Fig.

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

First, a structure of a ramen bridge having an air ball in a slab according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.

The ramen bridge of the present embodiment has a structure in which an alternation 20 is integrally extended at both ends of a slab 10 as shown in FIG. 1 and a foundation 30 is provided at a lower end of each of the alternations 20 .

Particularly, in the present invention, a plurality of air balls 11 having a space portion 11a therein are embedded in the bridge slab 10 as shown in FIG.

The air ball 11 according to the present invention is formed by molding a synthetic resin material. The air ball 11 is inserted with the concrete mortar during the concrete pouring operation for forming the slab 10 in the bridge construction process, The ball 11 is seated on the reinforcing bars.

When the air ball 11 is formed in the slab 10 as described above, the volume of the concrete can be reduced by the volume occupied by the air ball 11, so that the weight of the slab 10 can be reduced.

Accordingly, since the thickness of the slab 10 remains the same as that of the conventional slab 10, and the weight of the slab 10 is reduced, the span length of the ramen bridge can be further increased.

4 to 8 show the structure of the air ball 11 according to the second embodiment of the present invention. In the air ball 11, a reinforcing bar 15 The connecting portion 16 is formed integrally with the connecting portion 16 and is formed of an elastic material such as rubber or synthetic resin. The connecting portion 16 is provided with a cutting groove 16a for fast coupling with the reinforcing bar 15 .

A protective coating layer 16b is formed on the inner wall surface of the connection part 16 to prevent corrosion due to contact with the reinforcing bar 15. The protective coating layer 16b is formed of 10 to 30% by weight oyster shell fine powder, 30 to 50 wt%, nano 20 to 40 wt%, and epoxy resin 1 to 10 wt%. The oyster shell powder enhances the durability of the coating layer, and the nano silver and silicon powder functions to maintain the uniform thickness of the coating layer.

Since the connecting portion 16 is provided at one side of the air ball 11, the air ball 11 can be stably fixed to the reinforcing bar 15. [

That is, since the air ball 11 is fixedly installed at appropriate intervals in the course of the installation of the slab reinforcing bar 15 for the bridge construction, there is a problem that the air ball 11 is flowed to one side during the concrete pouring process .

Accordingly, the air ball 11 can be maintained in a uniformly arranged state along the entire length of the slab 10, thereby exhibiting an advantage that the overall moment supporting force of the bridge is uniformly maintained.

In the operation of fixing the air ball 11 to the reinforcing bar 15, when the connecting portion 16 is pressed against the reinforcing bar 15, the incision groove 16a is opened and the reinforcing bar 15 is inserted. The work can be done.

Since the protective coating layer 16b is formed on the wall surface of the connection part 16, the corrosion due to the direct contact with the reinforcing bar 15 can be prevented. It is possible to prevent the shape of the connecting part 16 from being changed and to prevent the phenomenon of the steel reinforcing bar 15 from being pulled out of the reinforcing bar 15 during the concrete casting process.

9 to 11 show a third embodiment of the present invention in which a plurality of elastic springs 12 are provided in the radial direction inside the air ball 11, Shaped support 13 is formed so as to reduce the inner wall surface and the frictional force of the portion 11a and maintain a stable fluid force.

At this time, on the inner wall surface of the air ball 11, a lubricating coating layer 11b for reducing durability of the air ball 11 is formed as a thin film while decreasing the frictional force with the support 13. The lubricating coating layer 11b It is preferable to mix the glass fibers and Teflon in a weight ratio of 1: 1.

The elastic force of the resilient spring 12 can be applied to the air ball 11 with a certain elastic force to prevent the air ball 11 from being damaged.

That is, when the concrete constituting the slab 10 is contracted or expanded according to the change of the external temperature, a pressing force acts on the air ball 11. At this time, the elastic spring 12 elastically supports the concrete, .

Particularly, since the end portion of the elastic spring 12 is provided with the support 13 for preventing direct contact with the inner wall surface of the air ball 11, The lubricating coating layer 11b formed on the inner wall surface of the air ball 11 minimizes the frictional force with the support 13. [

In addition, since the lubricating coating layer 11b is mixed with the glass fibers, it is possible to prevent the coating layer from peeling due to the frictional force with the air ball 11. [

Although specific embodiments of the present invention have been illustrated and described above, it is apparent that the ramen bridge structure of the present invention can be variously modified by those skilled in the art.

For example, although a single span bridge structure is shown in the embodiment of the present invention shown in FIG. 1, it may be applied to a two span or multi-span bridge structure if necessary.

Therefore, it should be understood that such modified embodiments should not be understood individually from the technical spirit and scope of the present invention, and such modified embodiments should be included in the appended claims of the present invention.

10: Slab 11: Air Ball
11a: Space part 11b: Lubricated coating layer
12: Elastic spring 13:
15: Rebar 16: Connection
16a: incision groove 16b: protective coating layer
20: Shift 30: Foundation

Claims (5)

In a ramen bridge having a structure in which the alternation 20 is integrally extended at both ends of the slab 10,
A plurality of air balls 11 having a space portion 11a therein are embedded in the slab 10;
A reinforcing bar 15 is formed at one side of the air ball 11 and a connecting portion 16 for connecting the reinforcing bar 15 to the slab 10 is formed integrally with the reinforcing bar 15, An incision groove 16a is formed;
A protective coating layer 16b forming a mixed composition of oyster shell fine powder, silicone powder, nano silver and epoxy resin is formed on the wall surface of the connection part 16 to prevent corrosion due to contact with the reinforcing bar 15;
A plurality of elastic springs 12 are radially provided in the air ball 11. At the ends of the elastic springs 12, friction force against the inner wall surface of the space portion 11a is reduced, A ball-shaped support 13 is configured to be held;
The inner wall surface of the air ball 11 is characterized in that a lubricating coating layer 11b having a mixed composition of glass fiber and Teflon is formed in a thin film for reducing the frictional force with the support 13 and improving the durability of the air ball 11 Ramen bridge with slab air ball. delete delete delete delete
KR1020160027627A 2016-03-08 2016-03-08 Rahmen bridge structure having air ball KR101864004B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160027627A KR101864004B1 (en) 2016-03-08 2016-03-08 Rahmen bridge structure having air ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160027627A KR101864004B1 (en) 2016-03-08 2016-03-08 Rahmen bridge structure having air ball

Publications (2)

Publication Number Publication Date
KR20170105150A KR20170105150A (en) 2017-09-19
KR101864004B1 true KR101864004B1 (en) 2018-06-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102047404B1 (en) * 2018-08-06 2019-11-21 정근용 Cover for stand type aircon
KR102181972B1 (en) * 2020-07-20 2020-11-24 주식회사 에스티 Bridge inspection facility construction method and bridge inspection facility constructed thereby

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200262093Y1 (en) * 2001-10-29 2002-02-06 한명신 steel reinforcing support
KR101590436B1 (en) * 2014-08-08 2016-02-01 주식회사 청풍 Elasticity pavement composition within sawdust

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101068451B1 (en) * 2008-09-29 2011-09-29 (주)대한구조안전기술 Tying rod and constructing method of void slab using the same
KR20100121757A (en) * 2009-05-11 2010-11-19 깨뱉시스템주식회사 Hollow membrance for slab

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200262093Y1 (en) * 2001-10-29 2002-02-06 한명신 steel reinforcing support
KR101590436B1 (en) * 2014-08-08 2016-02-01 주식회사 청풍 Elasticity pavement composition within sawdust

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