KR20100021324A - The structure for connecting a cross member for slab form - Google Patents

Abstract

PURPOSE: A structure for connecting a cross member for a slab form is provided to safely place and cure concrete for a slab. CONSTITUTION: A structure for connecting a cross member for a slab form comprises a form support bar(60), a pair of link members(50), a pair of connection bar coupling members(40), a connection bar anchor(30), a buried bolt(70), and a pair of wall form connection bar(10). One end of the connection bar anchor is buried in concrete for a wall, and the wall form connection bars are coupled to the concrete for a wall by the connection bar anchor. One end of the buried bolt is buried in concrete for a slab, and the wall form connection bars are coupled to the concrete for a slab.

Description

The slab formwork support bar connecting structure {The structure for connecting a cross member for slab form}

The present invention, in the process of installing a plurality of deck panels constituting the deck on which the slab concrete is poured, one end is embedded in the concrete for the wall in the process of concrete curing and construction, so as to support the slab formwork support bar By preventing the support bar coupling anchor member from being inadvertently removed, the end of the anchor member is always embedded in the wall concrete regardless of the operator's attention, thereby safely placing and curing the slab concrete. The present invention relates to a slab formwork supporting bar connecting structure.

In general, a multi-layered structure of reinforced concrete structure begins with the installation of wall formwork and slab formwork, in which a wall formwork such as a mold having an internal space is formed first, and the slab formwork is horizontally installed at the upper end thereof. After that, it is constructed by pouring concrete into the wall formwork and the upper surface of the slab formwork to cure.

In addition, each formwork is made by connecting a number of square panel panels called formwork panels, wherein the formwork panel constituting the slab formwork, also called the deck panel to distinguish from the wall formwork panel, for the slab formwork Formwork panels will be referred to as "deck panels," and dense arrangements of multiple deck panels on the same plane will be referred to as "deck panels."

The construction of walls and slabs begins with the installation of formwork, a form of mold that connects the plurality of panels to provide an interior space for filling the concrete and a floor on which the concrete is poured, spaced apart by the thickness of the wall. Wall formwork is installed on both sides of the wall in close contact with each other, and the front surface is installed on the opposite surfaces of the two walls, respectively, and the upper side of the two wall formwork facing each other in the space separated by the interior space. Both ends of the structure is coupled.

When dismantling the conventional formwork installed as described above, not only takes a lot of dismantling time but also a high risk of a safety accident.

Therefore, in order to solve the above problems, Korean Patent No. 812551, filed and registered by the present applicant, discloses "slab formwork support bar that is easy to dismantle."

1 is a view illustrating a state of coupling of a panel connection bar in concrete construction using a deck panel in general.

As shown, generally looking at the overall supporter structure for supporting the wall panel (1,1 ') and the deck panel (2) in which concrete is poured, it is a tube having a' ㅁ 'shaped cross section with one side lower end, A pair of wall panel connection bars 4 and 4 'coupled to the upper ends of the two wall panels 1 and 1' to face each other; As a plate material, one end is coupled to the inner circumferential surface of each of the wall panel connection bars 4 and 4 ', the other end protrudes into the opening, and a pair of support plates 5 and 5' are coupled to the guide pin at one side thereof. ; A pair of link members 6 and 6 '; A tube having a guide hole formed in the inner circumferential surface, it is configured to include a deck panel support bar (3), one side is inserted into each of the guide hole of both ends and supported horizontally.

The deck panel support bar 3 is a structure in which both ends are coupled to upper ends of two wall panels 1 and 1 ′ facing each other at a predetermined distance from the construction site, and an upper end of the deck panel support bar 3. In order to safely support the load of the heavy material including the deck panel 2 mounted on the bottom of the center portion of each deck panel support bar 3 is supported by the supporter (S).

Reference numeral Cl is concrete for slabs.

2 is a partially enlarged state of use centering on the panel connection bar.

As shown, the slab formwork support bar according to the prior art is a tube having a 'ㅁ' shaped cross-section with one side lower end opened, and the openings face each other at the upper ends of two opposite wall formwork (1,1 '). A pair of wall formwork connecting bars 6a and 6a '; As a plate, one pair of support plates 6b and 6b 'having one end coupled to the inner circumferential surface of each of the wall formwork connecting bars 6a and 6a', the other end protruding into the opening, and the guide pin H coupled to one side thereof. )Wow; Two plate members rotatably coupled to each other, comprising: first panels 6c and 6c 'on which the guide pins H are guided along guide holes H3 formed in the center portion, and second guide holes H4 formed on the center portion. A pair of link members consisting of panels 6d and 6d '; A tube having a guide hole formed in the inner circumferential surface, wherein the second panel (6d, 6d ') is inserted into the guide hole at both ends, respectively, and comprises a formwork support bar (3) which is supported horizontally.

3 is a cross-sectional view showing a state in which concrete is poured after the buried panel connection bar anchor member is coupled to the panel connection bar.

As shown, In general, according to the prior art, the pair of wall formwork connecting bars (6a, 6a ') is the wall concrete (Cw) by each panel connecting bar anchor member 7 whose one end is embedded in the wall concrete (Cw) It is configured to be firmly coupled to.

Here, to summarize the construction step using the buried panel connection bar anchor member (7),

Installation of a pair of wall formwork connecting bars (6a, 6a ') = >> Installation of formwork supporting bars (3) == >> Installation of a plurality of panel connecting bar anchor members (7) in the required position == >> Concrete for wall (Cw) Placing == >> Curing concrete completion == >> Dismantling of each panel == >> Panel connection bar anchor member (7) Removal and recovery

In this order, the grooves (not shown) that are formed at one end of the panel connection bar anchor member 7 are formed at one side of the wall concrete Cw from which the buried panel connection bar anchor member 7 is removed. Left.

However, when the concrete construction for the wall using an anchor member that acts as a medium such as buried panel connection bar anchor member according to the prior art, installing a plurality of deck panels constituting the deck to be cast slab concrete In the process, during the completion of curing and construction of the concrete, the panel connection bar anchor member, one end of which is embedded in the wall concrete and supports the formwork bar, is inadvertently omitted by the worker's carelessness. There was a problem such as failing to win the load of the slab concrete, etc.

The present invention was created in view of the above problems, in the process of installing a plurality of deck panels constituting the deck on which the slab concrete is poured, one end is embedded in the concrete for the wall in the process of curing and construction of concrete By preventing the inadvertent omission of the support bar coupling anchor member for supporting the slab formwork support bar, the one end of the anchor member is always embedded in the wall concrete regardless of the operator's attention, so that the slab concrete It is an object of the present invention to provide a slab formwork supporting bar connection structure for safely placing and curing the steel pipe.

The object of the present invention, the die support bar; A pair of link members; A pair of connecting bar coupling members; Anchor body head portion of the support bar coupling connecting bar anchor for supporting the formwork support bar, which includes a pair of wall formwork connecting bar, is inevitably embedded in the concrete for the wall is guided and placed on one side of the first panel during construction It is achieved by configuring so that.

According to the present invention, the slab formwork support bar connection structure, one end portion is embedded in the concrete for the wall, preventing the support bar coupling anchor member for supporting the slab formwork support bar is inadvertently omitted, regardless of the operator's attention In order to ensure that one end of the anchor member is always embedded in the concrete for the wall, the slab concrete can be safely poured and cured and constructed.

The slab formwork support bar connection structure of the present invention supports both ends of the formwork support bar, and the slab formwork support bar connection structure is detachably coupled to the concrete for the wall. Formwork support bars are stacked on; A three plate member rotatably coupled, the pair of link members respectively coupled to both ends of the formwork support bar; A pair of connecting bar coupling members having one side of each link member rotatably coupled to the first guide pin provided at one end thereof; The other end of each connecting bar coupling member is coupled to one side of the inner circumferential surface, the end portion facing the formwork bar is a tube having a rectangular cross-section partially open, a pair of wall formwork connecting bar detachably coupled to the opposite wall concrete The wall formwork connecting bar is coupled to the wall concrete by one end of the connection bar anchor is embedded in the concrete for the wall, and the wall formwork connecting bar is slab by the buried bolt one end is embedded in the concrete for the slab Characterized in that it is coupled to the concrete, look at this in detail as follows.

Wall slab formwork connecting bar in the present invention slab formwork support bar connection structure, one end of the anchor body of a pair of connecting bar anchors, one end of which is embedded in the concrete for the wall, the construction of the wall concrete is completed, a number of decks The panel supports most of the load including the formwork support bar so that the panel can be dismantled, and is manufactured to have the same cross-section in the longitudinal direction by a method such as extrusion.

Here, the wall formwork connecting bar composed of a pair, the other end of each connecting bar coupling member is coupled to one side of the inner circumferential surface, the end portion facing the formwork bar as a tubular body having a partial open, concrete for the wall facing And removably coupled to.

In the slab formwork support bar connection structure of the present invention, the connection bar anchor is a support member composed of a pair such that one protruding end of the anchor body as a component is embedded in the concrete for the wall.

At this time, the connection bar anchor, anchor bolts are coupled to each other through the first coupling plate of the wall formwork connecting bar and the connecting bar coupling member; An anchor nut and an anchor body which penetrates through the central through hole of the anchor bolt and is guided to the link member by the one head is detachably embedded in the concrete for the wall.

In addition, in the slab formwork support bar connection structure of the present invention, the connecting bar coupling member is a link member coupled to both sides of the formwork support bar rotatably to the first guide pin provided at one end thereof, respectively, It is a component detachably coupled to the wall formwork connecting bar.

Here, the connection bar coupling member, a second coupling plate that one side of each link member is rotatably coupled to the first guide pin provided at one end, and a state integrally coupled to one end of the second coupling plate In is composed of a first coupling plate detachably coupled to the inner peripheral surface of the wall formwork connecting bar.

And, in the slab formwork support bar connection structure of the present invention, the link member is an intermediate member which mediates the formwork support bar relative movement to the wall formwork connection bar in a certain range, and supports the formwork while the construction of the slab concrete is completed. The bar is located at the highest point from the floor, but when dismantling a number of deck panels after the construction of the slab concrete is completed, the formwork bar is a component that links to the lowest point from the floor.

At this time, the link member of the slab formwork support bar of the present invention comprises three units that are rotatably coupled to each other and constitutes one unit, and a pair of these units is provided. The first guide pin is formed along a first guide hole formed in the center portion. The first panel being guided; Third panels respectively coupled to both ends of the die support bar; The second guide pin provided on one side is composed of a second panel guided to a second guide hole formed on one side of the third panel.

In addition, in the present invention the slab formwork support bar connection structure, the formwork support bar is a component that is supported by a pair of wall formwork connecting bars, respectively, both ends are coupled to the link member, a plurality of constructions after the construction of the slab concrete is completed The die support bar is moved from the highest point to the lowest point from the bottom surface until the deck panel is dismantled.

Here, the formwork support bar is produced through a process such as extrusion so that a constant cross section is formed in the longitudinal direction, it is configured to stack a plurality of deck panels on the upper surface.

In the slab formwork supporting bar connection structure of the present invention, the buried bolt is embedded in the slab concrete at one end of the head bolt, and one side of the wall formwork connecting bar and the connecting bar connecting member is penetrated by the fastening nut fastened to the thread. It is firmly supported to be detachable to the slab concrete.

Hereinafter, a preferred embodiment of the slab formwork support bar connection structure according to the present invention will be described with reference to the accompanying drawings.

Figure 4 shows one side of the slab formwork support bar connection structure of the present invention, (a) is a coupling state diagram, (b) is a partially enlarged view, Figure 10 shows a coupling relationship between the connecting bar coupling member and the link member. It is a partial magnification.

As shown, the slab formwork support bar connection structure of the present invention, in the slab formwork support bar connection structure that supports both ends of the formwork support bar to be disassembled to the concrete for the wall, the slab concrete (Cl) on the upper surface Formwork support bar 60 is stacked a plurality of deck panel (20a) to be poured on the upper surface; A three plate member rotatably coupled, the pair of link members 50 respectively coupled to both ends of the formwork support bar 60; A pair of connecting bar coupling members 40 having one side of each link member 50 rotatably coupled to the first guide pin P1 provided at one end thereof; The other end of each of the connecting bar coupling members 40 is coupled to one side of the inner circumferential surface, and has a rectangular cross section in which an end portion facing the formwork bar 60 is partially opened, and is separated from the opposite wall concrete Cw. It includes a pair of wall formwork connecting bar 10 that is coupled to each other, and each wall formwork connecting bar 10 is wall concrete by a connecting bar anchor 30, one end of which is embedded in the wall concrete (Cw) The wall formwork connecting bar 10 is coupled to the slab concrete (Cl) by being coupled to (Cw), one end portion of the buried bolt 70 is embedded in the slab concrete (Cl).

Therefore, according to the present invention slab formwork support bar connection structure configured as described above, the support bar coupling anchor member 7 for supporting the slab formwork support bars 6a, 6a 'is inadvertently omitted by the operator, Unlike the prior art in which a safety accident occurred due to the failure to overcome the load of slab concrete (Sl), which was poured in the process of curing and constructing by pouring concrete (Sl), one end part of the wall was completed in the process of curing and construction of concrete. Anchor body 31, head 31 'of the support bar coupling connection bar anchor 30 for supporting the formwork support bar 60 is embedded in the concrete for the first panel 51 during the construction process By being guided to one side, it is configured to inevitably be embedded in the wall concrete (Cw) to be poured, it is possible to safely pour the slab concrete (Sl), curing and construction.

5 is a state diagram before the concrete is poured into the slab formwork support bar connection structure of the present invention, Figure 6 is a state diagram immediately after the concrete is poured into the slab formwork support bar connection structure.

As shown, the slab formwork support bar connection structure of the present invention, while fastening the buried bolt 70 with the fastening nut 71 before the wall concrete (Cw) or slab concrete (Cl) is poured, the link, The member is operated to guide the head 31 'of the anchor bar 31 of the connecting bar anchor 30 to protrude the other end to the outside of the wall formwork connecting bar 10 (FIG. 5), and to provide a plurality of deck panels ( After constructing 20a) and a plurality of wall panels 20b, concrete is poured to form slab concrete Sl and wall concrete Sw.

7 is a working state diagram of the initial stage of dismantling the slab formwork support bar connection structure of the present invention, Figure 8 is a working state diagram of the dismantling step of the slab formwork support bar connection structure, Figure 9 is completed dismantling of the slab formwork support bar connection structure This is the working status diagram of the step.

As shown, looking at the process of dismantling the slab formwork support bar connection structure of the present invention, at the same time removing the fastening nut 71 is fastened. The anchor body 31 embedded in the wall concrete Cw is removed. (FIG. 7)

Then, as described above, after removing the fastening nut 71 and the anchor body 31, each of the deck panels stacked on the upper surface of the formwork support bar 60 is dismantled and recovered.

Therefore, as described above, in the state in which each deck panel is dismantled, the formwork bar 60 and each component coupled thereto are integrally separated and dismantled to finish the dismantling operation (FIG. 9).

11 to 17 are individual component views showing each component of the present invention slab formwork bar connection structure.

As shown in the drawing, the first coupling plate 41 is formed of a through hole h1 and h2 on one side as a plate material, and a second coupling plate facing the through hole h2 is coupled to the buried bolt 70. The coupling nut 71 is coupled to the threaded portion formed on one side, and the head portion 70 'is coupled to the bolt head and the support member 70 "of the synthetic resin material.

In addition, the anchor bolt 32 having a through hole formed in the center portion is anchored to the anchor nut 34 in the threaded portion, and the anchor body 31 of the connection bar anchor 30 is selectively inserted through the through hole.

1 is a view illustrating a state of coupling of a panel connection bar in concrete construction using a deck panel in general.

2 is a partially enlarged state of use of the panel connection bar.

3 is a cross-sectional view showing a state in which concrete is poured after the panel connection bar anchor is coupled to the panel connection bar.

Figure 4 shows as one side of the present invention the slab formwork support bar connection structure,

(a) is the coupling state diagram and (b) is the partial enlargement diagram.

Figure 5 is a bonded state before the concrete is poured into the present invention slab formwork bar connection structure.

Figure 6 is a coupling state immediately after the concrete is poured into the slab formwork support bar connection structure.

Figure 7 is a working state of the initial stage of dismantling of the present invention slab formwork bar connection structure.

8 is a working state of the dismantling intermediate stage of the slab formwork support bar connection structure.

Figure 9 is a working state of the dismantling step of the slab formwork supporting bar connection structure.

10 is a partially enlarged view showing a coupling relationship between a connecting bar coupling member and a link member.

Figure 11 shows a first coupling plate of the connecting bar coupling member, (a) is a cross-sectional view, (B) is a right side view.

12 is a front view showing a second coupling plate of the connecting bar coupling member.

13 is a coupling diagram showing a buried bolt.

14 is a cross-sectional view showing the anchor bolt of the connecting bar anchor.

15 is a front view showing the anchor body of the connecting bar anchor.

Fig. 16 is a front view showing the first panel of the link member.

17 is a front view showing a second panel of the link member.

             <Description of Symbols for Main Parts of Drawings>

10: wall formwork connecting bar 20a: deck panel

20b: wall formwork panel 30: connection bar anchor

31: anchor body 32: anchor bolt

33: washer 34: anchor nut

40: connecting bar coupling member 41: first coupling plate

42: second coupling plate 50: link member

51: first panel 52: second panel

60: die support bar 70: buried bolt

71: tightening nut 72: head

Claims (4)

In the slab formwork support bar connection structure that supports both ends of the formwork support bar is detachably coupled to the concrete for the wall, Formwork support bar 60 in which a plurality of deck panels (20a) in which the slab concrete (Cl) is poured on the upper surface is laminated on the upper surface; A three plate member rotatably coupled, the pair of link members 50 respectively coupled to both ends of the formwork support bar 60; A pair of connecting bar coupling members 40 having one side of each link member 50 rotatably coupled to the first guide pin P1 provided at one end thereof; The other end of each of the connecting bar coupling members 40 is coupled to one side of the inner circumferential surface, and has a rectangular cross section in which an end portion facing the formwork bar 60 is partially opened, and is separated from the opposite wall concrete Cw. It includes a pair of wall formwork connecting bar 10 is coupled to the possible, Each wall formwork connecting bar 10 is coupled to the wall concrete (Cw) by the connection bar anchor 30, one end of which is embedded in the wall concrete (Cw), one end of the concrete for the slab (Cl) Slab formwork support bar connection structure, characterized in that the respective wall formwork connecting bar 10 is coupled to the slab concrete (Cl) by the buried bolt 70 is embedded. The method of claim 1, The link member 50 is a three plate material that is rotatably coupled to each other, and includes: a first panel 51 formed with the first guide pin P1 along a first guide hole G1 formed in a central portion thereof; Third panels 53 respectively coupled to both ends of the formwork supporting bar 60; A second guide pin (P2) provided on one side is guided to the second guide hole (G2) formed on one side of the third panel 53, the second end is coupled to the first end of the first panel 51 Slab formwork support bar connection structure, characterized in that comprises a panel (52). The method of claim 1, The connecting bar coupling member 40 includes: a second coupling plate 42 having one side of each link member 50 rotatably coupled to the first guide pin P1 provided at one end thereof; Slab formwork, characterized in that it comprises a first coupling plate 41 detachably coupled to the inner peripheral surface of the wall formwork connecting bar 10 in a state integrally coupled to one end of the second coupling plate (42) Support bar connection structure. The method of claim 1, The connection bar anchor 30, the anchor bolt 32 which is coupled to each other through the first coupling plate 41 of the wall formwork connecting bar 10 and the connecting bar coupling member 40; One end of the head 31 'is guided to the link member 50 through the anchor nut 34 and the central through hole of the anchor bolt 32 so that the other end thereof is detachably embedded in the concrete for the wall CW. Slab formwork support bar connection structure, characterized in that configured to include an anchor body (31).

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