KR20130001192A - Lateral auxiliary bar for continuously reinforced concrete pavements - Google Patents

Lateral auxiliary bar for continuously reinforced concrete pavements Download PDF

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Publication number
KR20130001192A
KR20130001192A KR1020120132612A KR20120132612A KR20130001192A KR 20130001192 A KR20130001192 A KR 20130001192A KR 1020120132612 A KR1020120132612 A KR 1020120132612A KR 20120132612 A KR20120132612 A KR 20120132612A KR 20130001192 A KR20130001192 A KR 20130001192A
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South Korea
Prior art keywords
reinforcement
reinforcing bar
reinforced concrete
concrete pavement
transverse
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KR1020120132612A
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Korean (ko)
Inventor
원문철
최판길
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원문철
(주)삼우아이엠씨
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Priority to KR1020120132612A priority Critical patent/KR20130001192A/en
Publication of KR20130001192A publication Critical patent/KR20130001192A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/16—Reinforcements
    • E01C11/18—Reinforcements for cement concrete pavings
    • 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
    • E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
    • E04C5/167—Connection by means of clips or other resilient elements
    • 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
    • E04C5/18—Spacers of metal or substantially of metal
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2201/00—Paving elements
    • E01C2201/16—Elements joined together
    • E01C2201/167—Elements joined together by reinforcement or mesh

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to a transverse secondary reinforcing bar for supporting longitudinal reinforcing bar when constructing continuous reinforced concrete pavement (CRCP), in detail, to facilitate the reinforcement of the longitudinal reinforcement and to maintain a constant reinforcement spacing, It is for transverse auxiliary reinforcing bars for continuous reinforced concrete pavement where reinforcing bars are formed in this part.
According to the present invention, it is possible to efficiently distribute the stress generated in the concrete pavement by maintaining a constant spacing and height of the longitudinal reinforcing bars, and also to eliminate the tie work for tying the longitudinal reinforcing bars with the transverse reinforcing bars. Is faster.

Description

Lateral auxiliary bar for continuously reinforced concrete pavements

The present invention relates to a transverse secondary reinforcing bar for supporting longitudinal reinforcing bar when constructing continuous reinforced concrete pavement (CRCP), in detail, to facilitate the reinforcement of the longitudinal reinforcement and to maintain a constant reinforcement spacing, It is for transverse auxiliary reinforcing bars for continuous reinforced concrete pavement where reinforcing bars are formed in this part.

According to the present invention, it is possible to efficiently distribute the stress generated in the concrete pavement by maintaining a constant spacing and height of the longitudinal reinforcing bars, and also to eliminate the tie work for tying the longitudinal reinforcing bars with the transverse reinforcing bars. Is faster.

Cement concrete pavement is a pavement type that maintains structural stability by reducing the stress caused by the load below the bearing capacity of the lower layer by resisting the shear or bending caused by the cement concrete slab. Types of cement concrete pavement include reinforcing bar reinforced concrete pavement (JPCP), joint reinforced concrete pavement (JRCP), and continuous reinforced concrete pavement (CRCP).

The plain joint concrete pavement is a pavement form without any reinforcing bar reinforcement, and artificially adjusts the location of cracking by installing joints at regular intervals, but has a disadvantage in that the joint is easily damaged as time passes.

In addition, the joint reinforced concrete pavement is a pavement form in which a certain amount of longitudinal reinforcing bar is installed in the center of the cement concrete slab, and the longitudinal reinforcing bar restrains cracks caused by the tensile force at the lower part of the slab, thereby increasing the joint spacing. There is still a problem that breakage occurs in the direction cracks.

On the contrary, continuous reinforced concrete pavement is a pavement form that completely removes transverse joints by continuously installing longitudinal reinforcing bars in the concrete pavement slab as shown in FIG. 1 and induces transverse cracking after concrete laying. The ride comfort is good, and even under heavy traffic, the pavement life is longer than other pavement types.

However, in continuous reinforced concrete pavement, as shown in Fig. 2a, in order to continuously position the longitudinal reinforcing bar in the center of the paving slab cross section, a transverse auxiliary rebar and a support for supporting it must be installed.

At this time, the additional reinforcing work is required to mount the longitudinal reinforcing bar in the transverse auxiliary reinforcing bar and then weave the reinforcing bar with the binding line, which requires much time and labor, and the reinforcing bar quality changes according to the skill and attitude of the skilled worker. The disadvantage is that.

In addition, when the lateral auxiliary reinforcement and the longitudinal reinforcing bar is not properly made, as shown in Figure 2b there was a problem that the longitudinal rebar is easy to move from side to side due to the pressure of the concrete during concrete placement.

Accordingly, the present invention is to solve the above problems, not only to facilitate the reinforcement of the longitudinal reinforcement, but also to maintain a constant interval and height of the longitudinal reinforcement to efficiently distribute the stress generated in the continuous reinforced concrete pavement It is an object of the present invention to provide transverse secondary rebar for continuous reinforced concrete pavement.

In addition, the present invention can omit the tie work for tying the longitudinal reinforcing bars and transverse reinforcing bars, saving time and labor, and continuous reinforcing bars that can prevent the longitudinal reinforcing bars move left and right due to the pressure of the concrete when placing concrete It is an object to provide transverse auxiliary bars for concrete pavement.

The secondary reinforcing bar of the present invention for achieving the above object as a transverse secondary reinforcing bar (10) for supporting the longitudinal reinforcement at the time of continuous reinforced concrete pavement (CRCP) construction, to facilitate the reinforcement of the longitudinal reinforcement spacing In order to maintain a constant, it characterized in that the reinforcing bar support 11 is formed in the portion where the longitudinal reinforcing bar will be located.

In this case, the reinforcing bar support 11 is "

Figure pat00001
"To have a shape and to maintain a constant position without being separated from the secondary reinforcement even after the longitudinal reinforcement is inserted,"
Figure pat00002
"The size of the opening in which the longitudinal reinforcing bars are inserted is 10-25 mm, and the"
Figure pat00003
"The diameter of the shape is preferably 10 ~ 30mm.

In addition, the reinforcing bar support 11 is preferably made of an elastic material capable of absorbing shock, so that the longitudinal reinforcing bar is not easily separated from the reinforcing bar support 11, the reinforcing bar for mounting the longitudinal reinforcing bar It is preferable that the space | interval of (11) is 100-200 mm.

And, there is a cross-shaped support 12 for supporting a transverse auxiliary rebar at a constant height is installed, the height of the cross-shaped support 12 is preferably 75 ~ 200mm, the diameter of the transverse auxiliary reinforcement 10 ~ It is preferable that it is 25 mm and the length is 1,800-8,200 mm.

On the other hand, the transverse secondary reinforcing bar 10 of the present invention may have a zigzag shape as an embodiment, in which the longitudinal reinforcement is reinforced in two stages so that the stress generated in the concrete pavement can be efficiently distributed, It is preferable that the reinforcing bar 11 is formed at the high point and the low point of the direction auxiliary reinforcing bar 10, respectively.

At this time, the angle between the zigzag lateral auxiliary reinforcing bar 10 and the horizontal plane is 0 ~ 60 °, the height difference between the high point and the low point of the lateral auxiliary reinforcing bar 10 is preferably 40 ~ 100mm. In addition, the cross-shaped support 12 for supporting the transverse auxiliary reinforcement at a constant height is provided at the bottom, it is preferable that the height of the cross-shaped support 12 is 35 ~ 100mm.

When constructing continuous reinforced concrete pavement using the transverse auxiliary reinforcement of the present invention, not only the reinforcement of longitudinal reinforcing bars is easy but also the stresses generated in the continuous reinforced concrete pavement can be efficiently maintained by keeping the interval and height of the longitudinal reinforcing bars constant. Can be dispersed.

In addition, it is possible to omit the tie work for tying the longitudinal reinforcing bars and the transverse reinforcing bars, which saves construction time and labor, and prevents the longitudinal reinforcing bars from side to side due to the pressure of concrete when placing concrete. Can improve.

1-Conceptual view for explaining the continuous reinforced concrete pavement
Figure 2a-Photograph showing a conventional transverse reinforcing bar for continuously positioning the longitudinal reinforcing bar in the center of the slab cross section and the support for supporting it
Fig. 2b-Photo showing a case where the position of the longitudinal rebar was changed due to the binding failure of the longitudinal rebar and the transverse secondary reinforcement and the concrete pressure.
Figure 3-transverse secondary rebar for continuous reinforced concrete pavement according to an embodiment of the present invention
Figure 4-transverse secondary rebar for continuous reinforced concrete pavement according to another embodiment of the present invention

Hereinafter, with reference to the accompanying drawings, an embodiment of a transverse secondary rebar for continuous reinforced concrete pavement of the present invention will be described in detail.

Lateral secondary reinforcement 10 of the present invention is to support the longitudinal reinforcement when the continuous reinforced concrete pavement (CRCP) construction, to facilitate the reinforcement of the longitudinal reinforcement and to maintain a constant spacing, the longitudinal direction Reinforcing bar support 11 is formed in a portion where the reinforcing bar is located.

In the conventional continuous reinforced concrete pavement, in order to continuously position the longitudinal reinforcing bar in the center of the paving slab cross section, as shown in FIGS. 2A and 2B, a transverse auxiliary rebar and a support for supporting the same must be installed. At this time, a separate binding operation is required to mount the longitudinal reinforcing bars in the transverse auxiliary reinforcing bars and then weave the reinforcing bars with a binding line.

Therefore, the construction time and labor is not only high, the reinforcement quality of the reinforcing bar changes according to the skill and attitude of the skilled workers, and if the bond between the transverse secondary reinforcement and the longitudinal reinforcement is not properly achieved by the pressure of the concrete when placing concrete Due to this there was a problem that the longitudinal rebar is easy to move from side to side.

Accordingly, in the present invention, the longitudinal reinforcing bar is formed at the portion where the longitudinal reinforcing bar is to be positioned, and the longitudinal reinforcing bar and the transverse auxiliary bar are bound only by mounting the longitudinal reinforcing bar in the reinforcing bar support 11. This solves the problems of the conventional transverse secondary rebar.

On the other hand, the reinforcing bar support 11 may have a variety of forms that can support and fix the longitudinal rebar, as shown in Figure 3, 4 as an embodiment "

Figure pat00004
It is desirable to have a shape.

In this case, as the longitudinal reinforcing bars 13mm, 16mm, 19mm, 25mm diameter can be used a variety of reinforcement, even after the longitudinal reinforcement is inserted into the longitudinal reinforcement to maintain a constant position without being separated from the secondary reinforcement Being "

Figure pat00005
"The size of the opening of the shape is 10-25mm, said"
Figure pat00006
"The diameter of the shape is preferably 10 ~ 30mm.

In addition, the reinforcing bar 11 is preferably made of an elastic material capable of absorbing shock so that the longitudinal reinforcing bar is not easily separated from the reinforcing bar 11 even after being mounted on the reinforcing bar 11.

The spacing of the reinforcing bar 11 for mounting the longitudinal rebar for continuous reinforced concrete pavement (CRCP) is preferably 100 to 200 mm, the diameter of the transverse secondary rebar is 10 to 25 mm, and the length is 1,800 to 8,200 mm. It is desirable

And, instead of using a separate support, the lower portion of the transverse reinforcing bar 10 can be installed in the cross-shaped support 12 for supporting the transverse auxiliary reinforcement to a constant height, wherein the cross-shaped support 12 The height of is preferably 75 ~ 200mm.

On the other hand, the transverse secondary reinforcement 10 of the present invention may have a zigzag shape as shown in Figure 4 as an embodiment, wherein the longitudinal reinforcement is reinforced in two stages to efficiently stress the stress generated in the concrete pavement In order to be able to disperse, it is preferable that the reinforcing bar 11 is respectively formed at the high point and the low point of the transverse auxiliary rebar 10.

At this time, the angle between the lateral auxiliary reinforcing bar 10 and the horizontal plane of the zigzag-shaped transverse reinforcing bar 10 is 0 ~ 60 ° for efficient stress distribution, the height difference between the high point and the low point of the transverse auxiliary reinforcing bar 10 is 40 ~ 100mm It is preferable.

In addition, the zigzag-shaped transverse reinforcing bar 10 may also be provided with a cross-shaped support 12 for supporting the transverse sub-bar at a constant height, as in the case of a straight line, in which case the reinforcing bar consisting of two steps ( In consideration of the height difference of 11), the height of the cross support 12 is preferably 35 ~ 100mm.

The present invention has been described with reference to preferred embodiments of the present invention, but the present invention is not limited to these embodiments, and the claims and detailed description of the present invention together with the embodiments in which the above embodiments are simply combined with existing known technologies. In the present invention, it can be seen that the technology that can be modified and used by those skilled in the art are naturally included in the technical scope of the present invention.

10: transverse auxiliary rebar 11: rebar support
12: cross support

Claims (11)

As a transverse auxiliary reinforcing bar (10) for supporting longitudinal reinforcing bar when constructing continuous reinforced concrete pavement (CRCP),
A horizontal secondary rebar for continuous reinforced concrete pavement is formed to facilitate the reinforcement of the longitudinal reinforcement and to maintain a constant reinforcement spacing, the reinforcing bar support 11 is formed in the portion where the longitudinal reinforcing bar will be located. The method of claim 1,
The rebar support 11 is "
Figure pat00007
Transverse auxiliary reinforcing bars for continuous reinforced concrete pavement characterized in that the shape. The method of claim 2,
remind "
Figure pat00008
"The size of the opening in which the longitudinal reinforcing bars are inserted is 10-25 mm, and the"
Figure pat00009
"Lateral secondary rebar for continuous reinforced concrete pavement, characterized in that the diameter of the shape 10 ~ 30mm. 4. The method according to any one of claims 1 to 3,
The transverse secondary reinforcing bar for continuous reinforced concrete pavement, characterized in that the reinforcing bar support (11) is made of an elastic material capable of absorbing shock so that the longitudinal reinforcing bar is not easily separated from the reinforcing bar support (11). 4. The method according to any one of claims 1 to 3,
Lateral secondary rebar for continuous reinforced concrete pavement, characterized in that the spacing of the reinforcing support (11) is 100 ~ 200mm. 4. The method according to any one of claims 1 to 3,
Cross support (12) is installed in the lower portion for supporting the transverse auxiliary reinforcement at a constant height, the cross-shaped reinforcement for continuous reinforced concrete pavement, characterized in that the height of the cross support (12) is 75 ~ 200mm. 4. The method according to any one of claims 1 to 3,
The transverse secondary rebar for continuous reinforced concrete pavement, characterized in that the diameter of the transverse secondary reinforcing bar is 10 ~ 25mm, the length is 1,800 ~ 8,200mm. 4. The method according to any one of claims 1 to 3,
The transverse auxiliary reinforcing bar 10 has a zigzag shape,
Reinforcing bars for continuous reinforced concrete pavement, characterized in that the reinforcing bar support (11) is formed at the high and low points of the transverse sub-reinforcement (10), respectively, so that the longitudinal reinforcement is reinforced in two stages. 9. The method of claim 8,
Horizontal lateral secondary reinforcement for continuous reinforced concrete pavement, characterized in that the angle between the zigzag-shaped transverse secondary reinforcement 10 and the horizontal plane is 0 ~ 60 °. 9. The method of claim 8,
Horizontal reinforcement for continuous reinforced concrete pavement, characterized in that the height difference between the high point and the low point of the transverse auxiliary reinforcement 10 is 40 ~ 100mm. 9. The method of claim 8,
Cross support (12) is installed in the lower portion for supporting the transverse auxiliary reinforcement to a certain height, the cross-shaped reinforcement for continuous reinforced concrete pavement, characterized in that the height of the cross support (12) is 35 ~ 100mm.
KR1020120132612A 2012-11-21 2012-11-21 Lateral auxiliary bar for continuously reinforced concrete pavements KR20130001192A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735078A (en) * 2016-03-10 2016-07-06 长沙理工大学 Double-layer continuous reinforced concrete pavement structure suitable for pluvial region
CN105780625A (en) * 2016-03-10 2016-07-20 长沙理工大学 Double-layer reinforced concrete pavement structure suitable for pluvial region urban road
CN107178034A (en) * 2017-06-29 2017-09-19 福建省高速公路有限责任公司 Collison fence for bridge reinforcing bar three-dimensional localization frame

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735078A (en) * 2016-03-10 2016-07-06 长沙理工大学 Double-layer continuous reinforced concrete pavement structure suitable for pluvial region
CN105780625A (en) * 2016-03-10 2016-07-20 长沙理工大学 Double-layer reinforced concrete pavement structure suitable for pluvial region urban road
CN105735078B (en) * 2016-03-10 2017-10-13 长沙理工大学 A kind of double layer continuous reinforced concrete pavement structure suitable for area of heavy rainfull
CN107178034A (en) * 2017-06-29 2017-09-19 福建省高速公路有限责任公司 Collison fence for bridge reinforcing bar three-dimensional localization frame

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