KR20130111862A - Precast concrete panel having upper protuberant concrete beam - Google Patents

Precast concrete panel having upper protuberant concrete beam Download PDF

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Publication number
KR20130111862A
KR20130111862A KR1020120034085A KR20120034085A KR20130111862A KR 20130111862 A KR20130111862 A KR 20130111862A KR 1020120034085 A KR1020120034085 A KR 1020120034085A KR 20120034085 A KR20120034085 A KR 20120034085A KR 20130111862 A KR20130111862 A KR 20130111862A
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South Korea
Prior art keywords
reinforcement
precast concrete
panel
longitudinal direction
transverse
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KR1020120034085A
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Korean (ko)
Inventor
이성원
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주식회사 신원알피씨
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Priority to KR1020120034085A priority Critical patent/KR20130111862A/en
Publication of KR20130111862A publication Critical patent/KR20130111862A/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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D6/00—Truss-type 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
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements

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

Abstract

PURPOSE: A precast concrete panel with an upper protruding stiffening beam is provided to increase crack resistance by increasing a resultant force with a bridge slab as the bridge slab which is casted and constructed in a field and a composition area increase. CONSTITUTION: A precast concrete panel (100) with an upper protruding stiffening beam comprises a panel body (110), a truss girder (150), a transverse direction reinforcement steel, and a longitudinal direction reinforcement steel. The panel body is formed through concrete casting and includes an upper protruding reinforcement unit (160) and a pair of grooves in the lower surface. The truss girder is applied as a shear connector and comprises a pair of lower roots, an upper root, and a lattice bar. The pair of lower roots is connected to the transverse direction reinforcement steel, and the upper root is placed to form a triangle shape in the top of the lower roots. The lattice bar is extended in a zigzag shape up and down of each hypotenuse part of the triangle shape which is composed of the upper root and the lower roots. The transverse direction reinforcement steel is installed in an orthogonal transverse direction to a longitudinal direction of the truss girder. The longitudinal direction reinforcement steel meets at right angle with the transverse direction reinforcement steel and is installed in the longitudinal direction same as the truss girder.

Description

Precast concrete panel having upper protuberant concrete beam

The present invention relates to a precast concrete panel having an upper protruding reinforcement beam, and more particularly, as the upper protruding reinforcement beam is protruded upward at a predetermined interval on the upper surface of the panel main body, the bridge slab and the composite area which are constructed in the field are increased as the composite area increases. Synthetic strength with the bridge slab can be increased, through which the crack resistance is improved to a precast concrete panel having a top protruding reinforcement beam to significantly improve the durability of the constructed bridge slab.

In general, the structure of bridges is a space between a plurality of bridges installed on the ground at regular intervals, and horizontally spaced girder and each adjacent girder to reinforce the deflection of the girders in parallel in a horizontal direction. It consists of a cross beam and a slab disposed on the top of the girder formed in the orthogonal direction at regular intervals.

The girder as described above is manufactured to be able to withstand the stress caused by the vertical pressure, such as the weight of the slab and its own weight by embedding reinforcing bars or steel wires.

In addition, in order to construct a slab corresponding to the upper work of the bridge, after the formwork is installed between the girders, the concrete is poured on the upper part and then the formwork is dismantled. Thus, when installing the slab on the upper part of the bridge to install the formwork and the working scaffold to cure the slab concrete, there is a problem in the construction because there is a fixed phase to remove the formwork used therein.

Therefore, recently, panels to replace the slab formwork have been used to improve the workability by improving the workability and shortening the air by supplementing the problems described above. Such a panel is a precast concrete panel that uses the facilities provided in the factory to reinforce the truss girder and reinforcing bars vertically and horizontally, and then cast and cure the panels to make ready-made panels.

The precast concrete panel according to the prior art as described above is a truss girder longitudinally installed at regular intervals so that a part thereof is exposed to the upper surface, transverse reinforcing bars installed in the transverse direction orthogonal to the longitudinal direction of the truss girder, the Longitudinal reinforcing bars are installed in the longitudinal direction orthogonal to the transverse reinforcing bars and consists of the configuration of the panel body to form the panel through curing by pouring concrete.

The conventional precast concrete panels are generally provided in three types according to the shape of the panel body. That is, the conventional precast concrete panels are the first type of the horizontal type pre-formed flat surface of the panel body. Precast concrete panels are applied, and the second type is the reinforcement rib type precast concrete panels in which the reinforcing ribs protrude downwardly at regular intervals on the lower surface of the panel body. A pair of grooves are recessed upwardly with a predetermined interval on a lower surface thereof, and a hunt-type precast concrete panel having a reinforcing haunch formed on both sides of the panel body is applied.

On the other hand, in the conventional precast concrete panel as described above, since the upper surface of the panel body is simply a flat cross section, the cross-sectional area is standardized, and thus the synthetic force with the bridge slab is formalized as the composite area with the bridge slab that is placed in the field is limited. It is.

As described above, the conventional precast concrete panel has a problem that the crack resistance is limited as the synthetic force with the bridge slab is standardized, so that a crack occurs after a certain period of time after the construction of the bridge slab, resulting in a poor durability of the constructed bridge slab.

Therefore, the research and development of precast concrete panels to increase the durability of bridge slabs by increasing the crack resistance of bridge slabs by increasing the composite area with bridge slabs by placing them in the field. This is required.

In order to solve the above problems, the present invention has a predetermined interval on the upper surface of the panel main body is formed by the upper protrusion reinforcement beam protruding upwardly, the composite slab and the composite slab is increased as the composite area is increased in the construction site It is an object of the present invention to provide a precast concrete panel having an upper projecting reinforcement beam which can increase the crack resistance.

In addition, the technology according to the present invention is to increase the composite strength of the bridge slab and the construction of the bridge slab in the field is increased to increase the resistance to cracking to significantly improve the durability of the construction bridge slab .

The present invention for achieving the above-mentioned objects is as follows. That is, the precast concrete panel having the upper protruding reinforcement beam according to the present invention is disposed at regular intervals in the transverse direction so as to be partially exposed to the panel body and the upper part of the panel body is formed through the casting of concrete, the longitudinal direction is long Shear connecting members are installed to extend, and transverse reinforcing bars are installed in the transverse direction perpendicular to the longitudinal direction of the shear connecting member and longitudinal reinforcing bars are installed in the same direction as the shear connecting member orthogonal to the transverse reinforcing bars In the precast concrete panel is configured to, the shear connector is a pair of the lower end of the bar that is spaced apart by a certain distance welded to the transverse reinforcement, the upper end arranged to form a triangular shape on the upper end, each hypotenuse of the triangle A truss girder consisting of a lattice bar extending up and down in a zigzag shape, The panel body is alternatively provided in the longitudinal direction of the transverse reinforcing bar reinforcement is longitudinally spaced apart by welding, while the panel body is protruded upwards with a predetermined interval in the transverse direction on the upper surface is extended in the longitudinal direction The upper protrusion reinforcement beam is formed.

Here, the upper protruding reinforcement beam is preferably formed so as to surround a predetermined height of the center portion of the truss girder in a trapezoidal shape when the shear connector is applied to the truss girder.

In addition, the upper protruding reinforcement beam may be formed so as to surround a predetermined height of the center portion of the corrugated reinforcement of the cross-section of the trapezoidal or rectangular shape when the shear connector is applied to the corrugated reinforcement.

In addition, the panel main body preferably has a reinforcing rib protruding downwardly at a predetermined interval on the lower surface thereof, or a pair of grooves is recessed upwardly at a predetermined interval on the lower surface thereof, or the lower surface thereof is flattened.

In addition, the corrugated reinforcement is applied to the shear connector is a certain distance in the longitudinal direction of the transverse reinforcement reinforcement is welded, the lower end is orthogonal to the transverse reinforcement is formed extending a certain length while the top is round acid It is preferable that the mold is formed to extend at a predetermined interval and protrude repeatedly.

Referring to the effect of the precast concrete panel having the upper protrusion reinforcement beam according to the present invention.

First, as the upper protruding reinforcement beam is formed to protrude upward at a predetermined interval on the upper surface of the panel main body, as the composite slab and the composite area are increased in the field, the composite force with the bridge slab increases, thereby increasing crack resistance.

Second, as the bridge slab and the composite area of the site is increased, the synthetic strength with the bridge slab increases, thereby increasing the crack resistance, which can significantly improve the durability of the constructed bridge slab.

1 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a first embodiment of the present invention.
3 is a perspective view showing a precast concrete panel having an upper protrusion reinforcement beam according to a second embodiment of the present invention.
Figure 4 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a second embodiment of the present invention.
5 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a third embodiment of the present invention.
Figure 6 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a third embodiment of the present invention.
7 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a fourth embodiment of the present invention.
Figure 8 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a fourth embodiment of the present invention.
9 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a fifth embodiment of the present invention.
10 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a fifth embodiment of the present invention.
11 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a sixth embodiment of the present invention.
12 is a cross-sectional view showing a precast concrete panel having a top protruding reinforcement beam according to a sixth embodiment of the present invention.
13 is a perspective view showing a corrugated reinforcement applied to a precast concrete panel having a top protruding reinforcement beam according to the third, fourth and sixth embodiments of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the precast concrete panel having a top protruding reinforcement beam according to the present invention.

1 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a first embodiment of the present invention, Figure 2 is a precast concrete panel having a top protruding reinforcement beam according to a first embodiment of the present invention It is a cross-sectional block diagram shown.

1 and 2, the precast concrete panel 100 having a top protruding reinforcement beam according to a preferred embodiment of the present invention is a panel body 110, a truss girder 150 is applied as a shear connector, transverse reinforcement Reinforcement 120 and the longitudinal reinforcement 130 is made.

Here, the panel body 110 is molded through concrete pouring, but the upper surface protruding reinforcement beam 160 is formed to protrude upwardly with a predetermined interval in the transverse direction extending in the longitudinal direction on the upper surface, and also the panel body 110, it is preferable that a pair of grooves 111 are recessed upwardly with a predetermined interval on the lower surface.

At this time, the truss girder 150 is applied to the shear connector is a pair of lower end 121 and welded to the lateral reinforcement reinforcement 120 spaced apart a predetermined distance, and a triangular shape on the upper end of the lower end 121 And a lattice bar 125 welded so as to extend in a vertical zigzag shape to each hypotenuse portion of the triangle formed by the upper and lower roots 121 and the upper and lower roots 121 and 123. The upper portion of the panel body 110 is preferably disposed with a predetermined interval in the transverse direction so that the upper portion is exposed to extend in the longitudinal direction.

Moreover, the upper protruding reinforcement beam 160 is preferably formed so as to surround a predetermined height of the center portion of the truss girder 150 in a cross-sectional trapezoidal shape, and of course the cross-section of the truss girder 150 in various shapes such as a rectangular shape. It may be formed to surround a certain height of the central portion.

In addition, the transverse rebar 120 is installed in the transverse direction orthogonal to the longitudinal direction of the truss girder 150 is applied as a shear connector, while the longitudinal rebar 130 is the transverse rebar ( Orthogonal to the 120 is preferably installed in the same longitudinal direction as the truss girder 150.

Precast concrete panel 100 having an upper protrusion reinforcement beam according to the first embodiment of the present invention as described above has a predetermined interval on the upper surface of the panel body 110, the upper protrusion reinforcement beam 160 is formed to project upward As a result, as the composite area of the bridge slab (not shown) and the construction area of the site is increased, the synthetic force of the bridge slab (not shown) is increased to increase the crack resistance.

In addition, as the bridge slab (not shown) and the composite area of the site being placed are increased, the synthetic strength with the bridge slab (not shown) is increased to increase the crack resistance, thereby significantly improving the durability of the bridge slab (not shown). It can be done.

3 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a second embodiment of the present invention, Figure 4 is a precast concrete panel having a top protruding reinforcement beam according to a second embodiment of the present invention It is a cross-sectional block diagram shown.

The precast concrete panel 200 having the upper protruding reinforcement beam as shown in FIGS. 3 and 4 includes a panel body 210, a truss girder 250 applied as a shear connector, a transverse rebar 220, and a longitudinal rebar. 230.

Here, the panel body 210 is molded through concrete pouring, but the upper protrusion reinforcement beam 260 is protruded upwards at a predetermined interval in the transverse direction on the upper surface extending in the longitudinal direction is preferably formed, and the panel body It is preferable that the reinforcement ribs 211 protrude downward from the bottom surface 210 at a predetermined interval.

At this time, the truss girder 250 is applied as the shear connector is a pair of the lower end 221 is welded and the lateral reinforcement reinforcement 220 spaced apart a predetermined distance, the triangular shape on the upper end of the lower end 221 And a lattice bar 225 welded to extend up and down in a zigzag shape to each hypotenuse of the triangle formed by the upper and lower roots 223 and the upper and lower roots 221 and 223. The upper portion of the panel body 210 is preferably disposed to have a predetermined interval in the transverse direction so that the upper part is exposed to extend in the longitudinal direction.

Further, the upper protruding reinforcement beam 260 is preferably formed so as to surround a predetermined height of the center portion of the truss girder in a trapezoidal cross section, and, of course, the cross section of the truss girder 250 in various shapes such as a rectangular shape. It may be formed to surround a certain height of the central portion.

In addition, the transverse rebar 220 is installed in the transverse direction orthogonal to the longitudinal direction of the truss girder 250 is applied as a shear connector, while the longitudinal rebar 230 is the transverse rebar ( Orthogonal to the 220 is preferably installed in the same longitudinal direction as the truss girder 250.

5 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a third embodiment of the present invention, Figure 6 is a precast concrete panel having a top protruding reinforcement beam according to a third embodiment of the present invention It is a cross-sectional block diagram shown.

The precast concrete panel 300 having the upper protruding reinforcement beam as shown in FIGS. 5 and 6 includes a panel body 310, a corrugated reinforcement 350, a transverse reinforcing bar 320, and a longitudinal reinforcing bar that are applied as shear connectors. 330.

Here, the panel body 310 is molded through concrete pouring, but the upper surface protruding reinforcement beam 360 is formed to protrude upwardly with a predetermined interval in the transverse direction extending in the longitudinal direction on the upper surface, and also the panel body It is preferable that the pair of recesses 311 recessed upwardly has a predetermined interval on the lower surface 310.

At this time, the corrugated reinforcement 350 is applied as the shear connector is spaced apart a predetermined distance in the longitudinal direction of the transverse reinforcing bar 320 so that the lower end is welded to the transverse reinforcing bar 320 and the panel body 310 The upper part of the upper part is exposed and fixed to be installed at a predetermined interval in the transverse direction and the longitudinal direction.

13, the corrugated reinforcement 350 is spaced apart by a predetermined distance in the longitudinal direction of the transverse reinforcement 320, the bottom is welded, extending a predetermined length orthogonal to the transverse reinforcement 320 On the other hand, it is preferable that the upper end is bent to protrude repeatedly at regular intervals in a rounded mountain shape.

Further, the upper protruding reinforcement beam 360 is preferably formed so as to surround a predetermined height of the center portion of the corrugated reinforcement 350 in a trapezoidal cross-section, of course, the cross-section of the corrugated reinforcement 350 in various shapes such as a rectangular shape. It may be formed to surround a certain height of the central portion.

In addition, the transverse reinforcing bar 320 is installed in the transverse direction orthogonal to the longitudinal direction in which the corrugated reinforcement 350 which is applied as a shear connecting member is fixed at a predetermined interval spaced apart, while the longitudinal reinforcing bar 330 ) Is preferably installed in the longitudinal direction perpendicular to the transverse reinforcing bars 320.

7 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a fourth embodiment of the present invention, Figure 8 is a precast concrete panel having a top protruding reinforcement beam according to a fourth embodiment of the present invention It is a cross-sectional block diagram shown.

Precast concrete panel 400 having an upper protruding reinforcement beam as shown in Figures 7 and 8 is the panel body 410, corrugated reinforcement 450, transverse reinforcement 420 and longitudinal reinforcement is applied to the shear connector 430.

Here, the panel body 410 is molded through concrete pouring, but the upper protrusion reinforcement beam 460 is formed to protrude upwardly with a predetermined interval in the transverse direction extending in the longitudinal direction on the upper surface, and also the panel body 410, the reinforcing rib 411 is preferably formed to protrude downward with a predetermined interval on the lower surface.

In this case, the corrugated reinforcement 450 applied as the shear connecting member is spaced a predetermined distance in the longitudinal direction of the transverse reinforcing bar 420 so that the lower end is welded to the transverse reinforcing bar 420 and the panel body 410. The upper part of the upper part is exposed and fixed to be installed at a predetermined interval in the transverse direction and the longitudinal direction.

13, the corrugated reinforcement 450 is spaced apart by a predetermined distance in the longitudinal direction of the transverse reinforcing bar 420 is connected to the lower end is welded, extending a predetermined length orthogonal to the transverse reinforcing bar 420 On the other hand, it is preferable that the upper end is bent to protrude repeatedly at regular intervals in a rounded mountain shape.

Further, the upper protruding reinforcement beam 460 is preferably formed so as to surround a certain height of the center portion of the corrugated reinforcement 450 in a cross-sectional trapezoidal shape, of course, the cross-section of the corrugated reinforcement 450 in various shapes such as a rectangular shape. It may be formed to surround a certain height of the central portion.

In addition, the transverse reinforcing bar 420 is installed in the transverse direction orthogonal to the longitudinal direction in which the corrugated reinforcement 450 is applied as a shear connector having a predetermined interval spaced fixed installation, while the longitudinal reinforcing bar 430 ) Is preferably installed in the longitudinal direction orthogonal to the transverse rebar (420).

9 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a fifth embodiment of the present invention, Figure 10 is a precast concrete panel having a top protruding reinforcement beam according to a fifth embodiment of the present invention It is a cross-sectional block diagram shown.

Precast concrete panel 500 having an upper protruding reinforcement beam as shown in FIGS. 9 and 10 includes a panel body 510, a truss girder 550 applied as a shear connector, a transverse rebar 520 and a longitudinal rebar. 530.

Here, the panel main body 510 is molded through concrete pouring, but the upper protruding reinforcement beam 560 extending upwardly with a predetermined interval in the transverse direction extending in the longitudinal direction is preferably formed on the upper surface, the panel main body The lower surface of the 510 is preferably formed flat.

At this time, the truss girder 550 applied as the shear connector is a pair of the lower end 521 and the triangular shape above the lower end 521 is welded to the transverse reinforcement 520 spaced apart by a certain distance And a lattice bar 525 welded to extend in an up-and-down zigzag shape to each hypotenuse portion of the triangle formed by the upper end 523 and the lower end 521 and the upper end 523. The upper portion of the panel body 510 is preferably disposed to have a predetermined interval in the transverse direction so that the upper portion is exposed to extend in the longitudinal direction.

Further, the upper protruding reinforcement beam 560 is preferably formed so as to surround a predetermined height of the center portion of the truss girder in a cross-sectional trapezoidal shape, of course, the cross section of the truss girder 550 in various shapes such as a rectangular shape. It may be formed to surround a certain height of the central portion.

In addition, the transverse rebar 520 is installed in the transverse direction orthogonal to the longitudinal direction of the truss girder 550 is applied as a shear connector, while the longitudinal rebar 530 is the transverse rebar ( Orthogonal to the 520 is preferably installed in the same longitudinal direction as the truss girder 550.

11 is a perspective view showing a precast concrete panel having a top protruding reinforcement beam according to a sixth embodiment of the present invention, Figure 12 is a precast concrete panel having a top protruding reinforcement beam according to a sixth embodiment of the present invention It is a cross-sectional block diagram shown.

The precast concrete panel 600 having the upper protruding reinforcement beam as shown in FIGS. 11 and 12 includes a panel body 610, a corrugated rebar 650 applied to a shear connector, a transverse rebar 620, and a longitudinal rebar. 630.

Here, the panel body 610 is molded through concrete pouring, but the upper protrusion reinforcement beam 660 is formed to protrude upwardly with a predetermined interval in the transverse direction extending in the longitudinal direction on the upper surface, such panel body 610 is preferably formed on the lower surface.

In this case, the corrugated reinforcement 650 applied as the shear connector is spaced a predetermined distance in the longitudinal direction of the transverse reinforcing bar 620 so that the lower end is welded to the transverse reinforcing bar 620 and the panel main body 610. The upper part of the upper part is exposed and fixed to be installed at a predetermined interval in the transverse direction and the longitudinal direction.

13, the corrugated reinforcement 650 is spaced apart by a predetermined distance in the longitudinal direction of the transverse reinforcement 620, the lower end is welded, extending a predetermined length orthogonal to the transverse reinforcement 620 On the other hand, it is preferable that the upper end is bent to protrude repeatedly at regular intervals in a rounded mountain shape.

Furthermore, the upper protruding reinforcement beam 660 is preferably formed so as to surround a predetermined height of the center portion of the corrugated reinforcement 650 in a trapezoidal shape in cross section, and of course, the corrugated reinforcement 650 may have various shapes such as a rectangular shape in cross section. It may be formed to surround a certain height of the central portion.

In addition, the transverse reinforcing bar 620 is installed in the transverse direction orthogonal to the longitudinal direction in which the corrugated reinforcement 650 is applied as a shear connector with a fixed interval spaced apart fixed installation, the longitudinal reinforcing bar 630 ) Is preferably installed in the longitudinal direction orthogonal to the transverse rebar (620).

The precast concrete panels 100, 200, 300, 400, 500, and 600 having the upper protruding reinforcement beams according to the first to sixth embodiments of the present invention as described above are the panel bodies 110, 210, 310. Bridge slab (not shown) and composite area that is placed in the field by the upper protrusion reinforcement beams 160, 260, 360, 460, 560, 660 are formed to project upward with a predetermined interval on the upper surface, 410, 510, 610 As it increases, the synthetic strength with the bridge slab (not shown) increases, thereby increasing crack resistance.

In addition, as the bridge slab (not shown) and the composite area of the site being placed are increased, the synthetic strength with the bridge slab (not shown) is increased to increase the crack resistance, thereby significantly improving the durability of the bridge slab (not shown). It can be done.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the invention is not limited thereto. Various modifications may be made by those skilled in the art. Are included in the scope of the present invention.

100, 200, 300, 400, 500, 600: precast concrete panels
110, 210, 310, 410, 510, 610: panel body
111, 311: groove
211, 411: reinforced ribs
120, 220, 320, 420, 520, 620: transverse rebar
130, 230, 330, 430, 530, 630: longitudinal rebar
150, 250, 550: Truss Girder
151, 251, 551: bottom muscle
153, 253, 553: upper root
155, 255, 555: Lattice Bar
350, 450, 650: corrugated rebar
160, 260, 360, 460, 560, 660: Top extruded reinforcement beam

Claims (5)

The panel body is molded through the pouring of concrete, the shear connector is arranged at a predetermined interval in the transverse direction so as to be exposed to the upper portion of the panel body extending longitudinally installed in the longitudinal direction, and perpendicular to the longitudinal direction of the shear connector A precast concrete panel comprising a transverse reinforcing bar installed in a transverse direction and a longitudinal reinforcing bar installed in a longitudinal direction such as the shear connecting member perpendicular to the transverse reinforcing bar,
The shear connector is a pair of lower end of the pair of the lower end that is welded and the lateral reinforcement reinforcement spaced apart a predetermined distance, the upper end arranged to form a triangular shape on the upper end of the lower end, lattice extending in the vertical zigzag shape on each hypotenuse of the triangle The truss girder is made immediately, and the corrugated reinforcement is spaced apart by a predetermined distance in the longitudinal direction of the transverse reinforcing bar is welded at the bottom,
The panel body is a precast concrete panel having an upper protrusion reinforcement beam, characterized in that the upper protrusion reinforcement beam is protruded upward with a predetermined interval in the transverse direction on the upper surface extending in the longitudinal direction. The method of claim 1,
The upper protruding reinforcement beam is a precast concrete panel having an upper protruding reinforcement beam, characterized in that when the shear connector is applied to the truss girder, the cross section is formed to surround a predetermined height in the center portion of the truss girder in a trapezoidal shape. The method of claim 1,
The upper protruding reinforcement beam is a precast concrete having an upper protruding reinforcement beam, characterized in that when the shear connector is applied to the corrugated reinforcement, the cross section is formed to trap a predetermined height of the center portion of the corrugated reinforcement of trapezoidal shape or rectangular shape. panel. 4. The method according to any one of claims 1 to 3,
The panel body has precast concrete having upper reinforcing reinforcement beams, characterized in that the reinforcing ribs are formed to protrude downwardly with a predetermined interval on the lower surface, or a pair of grooves are formed to be recessed upwardly with a predetermined interval on the lower surface, or the lower surface is formed flat. panel. The method of claim 1,
The corrugated reinforcement applied as the shear connecting member is spaced apart in the longitudinal direction of the transverse reinforcing bar by a lower end is welded, and a predetermined length is extended orthogonally to the transverse reinforcing bar while the upper end is rounded. Precast concrete panel having an upper protruding reinforcement, characterized in that the extension is formed so as to protrude repeatedly at a predetermined interval.
KR1020120034085A 2012-04-02 2012-04-02 Precast concrete panel having upper protuberant concrete beam KR20130111862A (en)

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KR101531690B1 (en) * 2014-08-22 2015-06-26 (주) 효성 Grid type rib deck , grid type arch rib deck and the construction method therewith
KR20190077740A (en) 2017-12-26 2019-07-04 목포대학교산학협력단 Half pc slab and producing method thereof
KR20190100757A (en) * 2018-02-21 2019-08-29 (주)지승컨설턴트 PSC Girder With Variable Cross Section And Slab Construction Method Using Thereof
CN110886181A (en) * 2019-11-25 2020-03-17 清华大学 Precast concrete bridge and construction method thereof
KR102153007B1 (en) 2020-03-24 2020-09-07 이성원 Precast slab under groove and shear truss member and construction method thereof
CN113482210A (en) * 2021-08-22 2021-10-08 宁波优造建筑科技有限公司 One-way close rib composite floor
KR20220123926A (en) 2021-03-02 2022-09-13 주식회사 신원알피씨 Precast slab with interrocking shear member and construction method using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101531690B1 (en) * 2014-08-22 2015-06-26 (주) 효성 Grid type rib deck , grid type arch rib deck and the construction method therewith
KR20190077740A (en) 2017-12-26 2019-07-04 목포대학교산학협력단 Half pc slab and producing method thereof
KR20190100757A (en) * 2018-02-21 2019-08-29 (주)지승컨설턴트 PSC Girder With Variable Cross Section And Slab Construction Method Using Thereof
CN110886181A (en) * 2019-11-25 2020-03-17 清华大学 Precast concrete bridge and construction method thereof
KR102153007B1 (en) 2020-03-24 2020-09-07 이성원 Precast slab under groove and shear truss member and construction method thereof
KR20220123926A (en) 2021-03-02 2022-09-13 주식회사 신원알피씨 Precast slab with interrocking shear member and construction method using the same
CN113482210A (en) * 2021-08-22 2021-10-08 宁波优造建筑科技有限公司 One-way close rib composite floor

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