KR20170061463A - Stripping Deck Plate - Google Patents

Stripping Deck Plate Download PDF

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Publication number
KR20170061463A
KR20170061463A KR1020150166533A KR20150166533A KR20170061463A KR 20170061463 A KR20170061463 A KR 20170061463A KR 1020150166533 A KR1020150166533 A KR 1020150166533A KR 20150166533 A KR20150166533 A KR 20150166533A KR 20170061463 A KR20170061463 A KR 20170061463A
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KR
South Korea
Prior art keywords
spacer
reinforcing bar
truss girder
lower reinforcing
fixed
Prior art date
Application number
KR1020150166533A
Other languages
Korean (ko)
Inventor
정현석
Original Assignee
정현석
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Filing date
Publication date
Application filed by 정현석 filed Critical 정현석
Priority to KR1020150166533A priority Critical patent/KR20170061463A/en
Publication of KR20170061463A publication Critical patent/KR20170061463A/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • 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
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/001—Corner fastening or connecting means for forming or stiffening elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties

Abstract

A decking deck plate, comprising: an upper reinforcing bar fixed in a longitudinal direction; a truss girder integrally formed with a lower reinforcing bar provided in a longitudinal direction at a lower portion of the lattice; A spacer provided on a bottom surface of the truss girder, the spacer including a pedestal having a predetermined length to be supported on a bottom surface of the lower reinforcing bar, and a support vertically fixed to a bottom surface of the pedestal so as to support a load of the lower reinforcing bar; The truss girder and the spacer are made of a metal material and can be made rigid. By fixing the truss girder and the spacer by welding or riveting, it is possible to fix the truss girder and the spacer with strong contact force, As the concrete is poured, the coupling force between the concrete and the deck plate is increased, and the outer surface of the support is formed in a serrated shape in which the protruding portion and the groove portion are continuous, so that the contact force or adhesion force with concrete can be increased.

Figure P1020150166533

Description

Stripping Deck Plate < RTI ID = 0.0 >

The present invention relates to a deformation-type deck plate, and more particularly, to a deformation-type deck plate capable of easily fastening a diagonal bolt to a spacer and the spacer.

Generally, a truss deck, which is a thin steel plate attached to a slab under a steel truss and used as a formwork and a reinforcing steel, is widely used in domestic construction works for a long time.

The slab to which the truss deck is applied has the function of omitting the stiffening strut until the concrete curing as compared with the conventional reinforced concrete slab such as the timber formwork and the thin steel plate attached to the lower part of the steel truss plays the role of the mold, The advantage is that you can earn time.

However, in the case of a truss deck, the bottom plate is not applied as a structural member due to problems such as adhesion with cured concrete, and thus it is recognized that the decking deck which is detached and reused (decking deck) is excellent in terms of economy.

However, since the truss girder is welded to the bottom plate and can not be separated, a technique has been developed for providing a spacer between the truss girder and the bottom plate to separate the bottom plate after concrete curing.

An example of a spacer applied to the deformation-type deck described above is disclosed in Korean Patent Registration No. 10-1237323.

The spacer of such a deformation-type deck basically has to be able to be stably fixed to the bottom plate at the bottom, and to be easily detached after concrete curing, and secondly, the truss deck should be stably fixed with being separated from the bottom plate.

However, the prior art as shown in FIG. 1 has the following problems.

That is, the deformation-type deck is such that the spacer is stably fixed to the bottom plate, and the truss girder is stably fixed to the spacer, so that the truss girder is stably fixed to the bottom plate.

However, in the prior art, the spacer is fixed on the steel plate, and it depends on the fixing force of the bolt which is inserted into the spacer body through the steel plate. Therefore, the fixing force of the bolts to the spacer body formed of the synthetic resin material is relatively weak, so that the spacer can not exhibit sufficient fixing force to the steel plate.

Furthermore, since the coupling force between the spacer head formed of a metal and the spacer body formed of a synthetic resin material also depends on the coupling force between the spacer body and the two members due to injection of the insert in the head, a weak portion is formed between the spacer body and the head There was a problem that could occur.

Further, since the head part of the spacer head covers the upper part of the spacer body, the concrete can not be filled between the spacer head and the steel plate, and the void space is formed between the spacer body and the spacer head, And the concrete is separated from the spacers.

For example, Patent Literature 1 below discloses a spacer for de-molding decks.

The spacer for de-molding decks according to the following Patent Document 1 is a spacer for de-molding decks provided between a truss girder and a steel plate, wherein the spacer is made of two hexahedrons, and the synthetic resin material spacer body is formed at both ends in the longitudinal direction of the spacer head Wherein the spacer head is formed in a longitudinal direction by being bent to be narrowed from a lower portion to an upper portion of the head portion, And the reinforcing piece is bent obliquely to the upper part of the outer side.

Korea Patent Registration No. 10-1237323 (registered on February 20, 2013)

However, the spacer for deforming decks according to the related art has a problem that the spacer body formed of a synthetic resin material and the bolt fixing force are weak enough to be fixed to the steel plate of the spacer, and a spacer body formed of a metal and a spacer body formed of a synthetic resin material, There is a problem that a fragile portion is generated between the spacer body and the head.

Further, since the head part of the spacer head covers the upper part of the spacer body, the concrete can not be filled between the spacer head and the steel plate, and the void space is formed between the spacer body and the spacer head, As a result, the concrete is separated from the spacer, and the welded portion of the lower portion and the spacer head is small, and the spacer and the spacer head are detached.

SUMMARY OF THE INVENTION An object of the present invention is to provide a deformation-type deck plate in which a truss girder and a spacer are integrally formed.

Another object of the present invention is to provide a deformation-type deck plate capable of fastening a month bolt immediately after a steel plate is separated from a bottom surface of a spacer.

It is still another object of the present invention to provide a deformation-type deck plate having excellent fixing strength between a truss girder and a spacer by integrally fixing the spacer to the truss girder.

It is a further object of the present invention to provide a deformation deck plate which can be fixed in a continuous process while being moved along the conveyor belt by welding or riveting the spacers and fasteners.

In order to achieve the above object, a deformation-type deck plate according to the present invention includes an upper reinforcing bar fixed in the longitudinal direction, a lattice continuously installed in both longitudinal sides of the upper reinforcing bar, A truss girder integrally formed with a lower reinforcing bar; A spacer provided on a bottom surface of the truss girder, the spacer including a pedestal having a predetermined length to be supported on a bottom surface of the lower reinforcing bar, and a support vertically fixed to a bottom surface of the pedestal so as to support a load of the lower reinforcing bar; And the lower reinforcing bar is integrally fixed to the upper surface of the pedestal.

And a fastener provided to the spacer so as to be integrally fixed to the truss girder.

The spacer is provided with a hole formed between the support rods so that a load applied from the truss girder is dispersed on the support rods, and the spacer is not separated from the concrete. The support rods are protruded along the outer surface, And a groove portion is formed continuously.

And a screw portion is formed on the support to fasten the screw bolt.

Wherein the fixture includes a circular arc portion formed in a semicircular shape so as to surround an outer surface of the lower reinforcing bar; And a fixing part formed to be in surface contact with the spacer at both sides of the arc part, wherein the arc part and the fixing part are integrally formed.

Characterized in that the fixture is welded or riveted to the spacer.

As described above, according to the deformation-type deck plate of the present invention, the truss girder and the spacer are made of metal and can be manufactured to have rigidity. By fixing the truss girder and the spacer by welding or riveting, As the concrete is poured through the hole of the spacer, the coupling force between the concrete and the deck plate is increased and the outer surface of the support is formed into a serrated shape in which the protruding portion and the groove portion are continuous, thereby increasing the contact force or adhesion force with concrete Can be obtained.

1 is a perspective view showing a de-molding deck having a conventional spacer assembly for a de-molding deck,
2 is an exploded perspective view showing a deformation-type deck plate according to a first preferred embodiment of the present invention,
3 is a perspective view showing a state in which a deformation-type deck plate according to a first preferred embodiment of the present invention is installed,
FIG. 4 is a sectional view showing a state in which a deformation-type deck plate according to a first preferred embodiment of the present invention is installed,
FIG. 5 is a sectional view of a deformation-type deck plate according to a first preferred embodiment of the present invention,
6 is an exploded perspective view showing a deformation-type deck plate according to a second preferred embodiment of the present invention,
FIG. 7 is a perspective view showing a state in which a deformation-type deck plate according to a second preferred embodiment of the present invention is installed;
8 is a sectional view showing a state in which a deformation-type deck plate according to a second preferred embodiment of the present invention is installed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a deformation-type deck plate according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the deformation-type deck plate according to the embodiment of the present invention, the truss girder 10 and the spacer 20 used for pouring concrete are integrally formed. The deformation-type deck plate according to the first embodiment includes a truss girder 10, The deformation-type deck plate according to the second embodiment integrally fixes the truss girder 10 and the fastener 30 provided on the spacer 20 by rivets.

Since the deformation-type deck plate according to the first and second embodiments of the present invention is installed in a state where the truss girder 10 and the spacer 20 are integrally fixed to each other, So that the spacer bolts can be installed directly on the spacer 20 after the pouring.

≪ Embodiment 1 >

FIG. 2 is an exploded perspective view showing a deformation-type deck plate according to a first preferred embodiment of the present invention, FIG. 3 is a perspective view showing a state in which a deformation-type deck plate according to a first preferred embodiment of the present invention is installed, FIG. 5 is a sectional view of a deformation-type deck plate according to a first preferred embodiment of the present invention. FIG. 5 is a sectional view of a deformation-type deck plate according to a first preferred embodiment of the present invention.

The decking deck plate according to the preferred embodiment of the present invention includes an upper reinforcing bar 11 fixed in the longitudinal direction, a lattice 12 continuously installed on both sides of the upper reinforcing bar 11 in the longitudinal direction, A truss girder 10 integrally formed with a lower reinforcing bar 14 installed in a longitudinal direction at a lower portion of the truss girder 10; And a spacer 20 provided on the bottom surface of the truss girder 10 and the spacer 20 is formed of a pedestal 21 having a predetermined length to be supported on the bottom surface of the lower reinforcing bar 14, 14 supported vertically on the bottom surface of the pedestal 21 so that the load of the pedestal 14 is supported.

The deformation type deck plate according to the first embodiment of the present invention is characterized in that the truss girder 10 and the spacer 20 are integrally fixed by welding so that the lower reinforcing bars 14 of the truss girder 10 and the spacers 20 The pedestal 21 is fixed by welding.

The truss girder 10 includes an upper reinforcing bar 11 having a predetermined length and a lattice 12 fixed to both sides of the upper reinforcing bar 11 in the longitudinal direction. 11, the lower reinforcing bar 14 is fixed.

The upper lattice 11 and the lattice 12 are welded by point contact and the lower reinforcing bars 11 and 12 are welded to the lower portion of the lattice 12, 14) are formed integrally with each other.

The lattice 12 integrally forms the reinforcing bar receiving portion 13 in a substantially circular arc shape so as to be fixed to the bottom surface of the lower reinforcing bar 14. [ The reinforcing bar receiving portion 13 widens the contact area with the lower reinforcing bar 12 so that the lattice 12 and the lower reinforcing bar 14 are more firmly fixed by welding.

That is, the lattice 12 and the lower reinforcing bar 14 are integrally formed by welding, and the lattice 12 and the lower reinforcing bar 14 are welded together by increasing the welded portions of the reinforcing bar receiving portion 13 and the lower reinforcing bar 14. [ Thereby increasing the bonding force.

The spacer 20 is formed in a substantially tapered shape and includes a pedestal 21 fixed horizontally to a bottom surface of the lower reinforcing bar 14 and a lower surface of the pedestal 21 at the same position as the lower reinforcing bar 14. [ And a support base 23 fixed to the support frame 23 in a vertical direction.

The spacer 20 is made of a metal material having rigidity, and the pedestal 21 has a shape of a substantially ∩ 'shape. This is to increase the adhesion force due to concrete pouring.

The pedestal 21 is formed with a hole 22 having a predetermined length along the longitudinal direction of the pedestal 21 so that the load applied by the truss girder 10 is dispersed.

A support 23 having a predetermined height is fixed to the bottom of the pedestal 21. The pedestal (21) and the pedestal (23) are integrally fixed by welding. In addition, a threaded portion 24 is formed on the support 23 so as to fasten the screw bolt 28 after the steel plate 15 is separated.

The protrusions 25 and the grooves 26 are continuously formed on the outer surface of the supporter 23 at constant intervals so as to increase the adhesive force with the concrete.

Reference numeral 27 denotes a fixing bolt used when the spacer 20 and the steel plate 15 are fixed.

Next, the coupling relationship of the deformation-type deck plate according to the first preferred embodiment of the present invention will be described in detail.

2 to 4, the deformation-type deck plate according to the first preferred embodiment of the present invention includes a lattice 13 (see Fig. 2) formed in a zigzag shape between an upper reinforcing bar 11 and a lower reinforcing bar 14, ) Is fixed by welding.

The lattice 12 forms a reinforcing bar 13 extending to the outside of the lower reinforcing bar 14 so as to increase the coupling force with the lower reinforcing bar 14.

The spacer 20 is fixed to the bottom of the lower reinforcing bar 14 by welding and has a predetermined length so as to stably support the lower reinforcing bar 14. The cross section of the spacer 20 is rigid, Shaped so as to be easily welded.

Two supports 23 are welded to the bottom 21 of the pedestal 21 by welding and a hole 22 for distributing the load is formed between the pedestals 21. These holes 22 allow the concrete to fill up with no voids as the concrete flows into the space below the spacers 20.

The support rods 23 are welded to both sides of the bottom of the pedestal 21 and the support rods 23 are formed in a hollow shape and fastened to the inner surface of the support rods 23 by fastening bolts 27 or cross bolts 28 The threaded portion 24 is formed.

In addition, the outer surface of the support table 23 is formed with a predetermined protrusion 25 and a groove 26 so as to be more firmly fixed to the concrete. The projections 25 and the grooves 26 are formed on the entire outer surface of the support table 23, thereby increasing the adhesion with concrete.

≪ Embodiment 2 >

Hereinafter, a deformation-type deck plate according to a second preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein like reference numerals are used to designate like elements to those of the first embodiment, do.

FIG. 6 is an exploded perspective view showing a deformation-type deck plate according to a second preferred embodiment of the present invention, FIG. 7 is a perspective view showing a state in which a deformation-type deck plate according to a second preferred embodiment of the present invention is installed, Sectional view showing a state in which a deformation-type deck plate according to a second preferred embodiment of the present invention is installed.

The deformation-type deck plate according to the second embodiment of the present invention includes an upper reinforcing bar 11 fixed in the longitudinal direction, a lattice 12 continuously installed on both sides of the upper reinforcing bar 11 in the longitudinal direction, A truss girder 10 integrally formed with a lower reinforcing bar 14 provided in a longitudinal direction at a lower portion of the truss girder 10; And a spacer 20 provided on the bottom surface of the truss girder 10 and the spacer 20 is formed of a pedestal 21 having a predetermined length to be supported on the bottom surface of the lower reinforcing bar 14, And a support table 23 vertically fixed to the bottom surface of the pedestal 21 so as to support a load of the pedestal 14 so that the spacer 20 is integrally fixed to the truss girder 10 ).

The truss girder 10 and the spacer 20 are the same as those of the first embodiment described above and will not be described again. The truss girder 10 and the spacer 20 are fixed to the fastener 30 Will be described.

6 to 8, a fixture 30 for fixing the lower reinforcing bar 14 is provided on the upper surface of the pedestal 21 of the spacer 20. As shown in FIG. The fastener (30) includes a circular arc portion (31) formed in a semicircular shape so as to surround an outer surface of the lower reinforcing bar (14); And a fixing part 32 formed to be in surface contact with the spacer 20 on both sides of the circular arc part 31. The circular arc part 31 and the fixing part 32 are integrally formed.

The circular arc portion 31 is formed in a semicircular shape so as to cover the outer surface of the lower reinforcing bar 14. Both ends of the circular arc portion 31 are respectively fixed to the base 21 of the spacer 20 Are integrally formed.

A hole 33 is formed in the fixing portion 32 so as to penetrate a rivet or a piece of the member and a hole 33 is formed in the base 21 to correspond to the hole 33, to be.

The fixing member 30 is fixed to the upper surface of the pedestal 21 by fixing the hole 33 of the fixing member 32 and the hole of the pedestal 21 (not shown) And then fixed by a riveting operation.

Next, a method of installing a deformation-type deck plate according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 8. FIG.

The deformation-type deck plate according to the first and second embodiments of the present invention is characterized in that the spacer 20 having a predetermined length is fixed to one of the lower reinforcing bars 14 of the truss girder 10 by welding or riveting . ≪ / RTI >

That is, since the truss girder 10 is formed to have a predetermined length, the truss girder 10 can be continuously produced by welding or riveting at the weld or rivet while transferring the truss girder 10 using a conveyor.

This simplifies integration of the truss girder 10 and the spacer 20 so that the working time and manufacturing cost of the deformation-type deck plate can be reduced and the truss girder 10 and the spacer 20 can be assembled Or the time required for assembling can be reduced.

The truss girder 10 and the spacer 20 are stably installed at a position where the slab is to be installed and the steel plate 15 is fixed to the bottom of the support 23 of the spacer 20. The steel plate 15 is fixed by fastening the fixing bolt 27 to the threaded portion 24 of the support table 23. [

Thus, the concrete is laid in a state where the truss girder 10 and the steel plate 15 are installed. At this time, the concrete is injected into the lower portion of the spacer 20 through the hole 22 of the support base 21, so that the spacer 20 is embedded in the concrete, thereby increasing the bonding force with the concrete.

Further, the surface area of the outer surface of the support 23 is widened by the continuous protrusions 25 and the grooves 26, so that the contact area with the concrete is widened, so that the adhesion with the concrete is increased.

After the concrete is cured, the steel plate 15 is separated by releasing the fixing bolts 27 fastened to the support rods 23 and the rope bolts 28 are attached to the screw rods 24 of the support rods 23 .

In this way, as the diaphragm bolts 28 are fastened to the supports 23 of the spacers 20, the diaphragm bolts 28 can be easily installed and the diaphragm bolts 28 can be more firmly mounted on the slabs.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

10: Truss girder 11: Upper reinforcing bar
12: lattice 13: reinforcing bar portion
14: lower reinforcing bar 15: steel plate
20: spacer 21: pedestal
22: hole 23: support
24: threaded portion 25:
26: groove portion 27: fixing bolt
28: month bar bolt 30: fastener
31: arc part 32:
33: hole

Claims (6)

A truss girder integrally formed with an upper reinforcing bar fixed in the longitudinal direction, a lattice continuously installed on both sides of the upper reinforcing bar in the longitudinal direction, and a lower reinforcing bar provided in the lower part of the lattice in the longitudinal direction;
And a spacer provided on a bottom surface of the truss girder,
The spacer includes a pedestal having a predetermined length so as to be supported on a bottom surface of the lower reinforcing bar and a support vertically fixed to a bottom surface of the pedestal to support a load of the lower reinforcing bar,
Wherein the lower reinforcing bars are integrally fixed to the upper surface of the pedestal. The method according to claim 1,
Further comprising: a fixture provided so that the spacer is integrally fixed to the truss girder. 3. The method according to claim 1 or 2,
Wherein the spacer is provided with a hole between the support rods so that a load applied from the truss girder is distributed to the support rods and the spacer is not separated from the concrete rods,
Wherein the protruding portion and the groove portion are continuously formed along the outer surface of the support base so as to increase the adhesive force with the concrete. The method of claim 3,
And a threaded portion is formed on the support frame so as to be fastened with a screw bolt. The method of claim 3,
Wherein the fixture includes a circular arc portion formed in a semicircular shape so as to surround an outer surface of the lower reinforcing bar;
And a fixing portion formed on both sides of the arc portion to be fixed in surface contact with the spacer,
Wherein the arc portion and the fixing portion are integrally formed. The method of claim 3,
Wherein the fixture is welded or riveted to the spacer.
KR1020150166533A 2015-11-26 2015-11-26 Stripping Deck Plate KR20170061463A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101922940B1 (en) * 2018-03-28 2019-02-27 정현석 Molding system using quasi-noncombustible heat insulator and construction method therefor
KR20190104481A (en) * 2019-08-21 2019-09-10 주식회사 지원이엔지 Precast concrete beam having mount for deck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101922940B1 (en) * 2018-03-28 2019-02-27 정현석 Molding system using quasi-noncombustible heat insulator and construction method therefor
KR20190104481A (en) * 2019-08-21 2019-09-10 주식회사 지원이엔지 Precast concrete beam having mount for deck

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