KR20100021027A - The cross member for slab form - Google Patents

Abstract

PURPOSE: A cross member for a slab form is provided to prevent disturbance of construction by a concrete wall even in case of frequent remodeling into various shapes. CONSTITUTION: A slab form support bar comprises connection bar coupling members(111), deck panel connection bars(110), support panels(120), link members(130,130'), a form support bar(140), and supporters(160,160'). The connection bar coupling members are buried in a concrete slab(C). The deck panel connection bars support the bottom surface of the concrete slab. The link members include second panels with guiding holes. A plurality of deck panels are laminated on the upper side of the form support bar. The supporters support the bottom surface of each support panel.

Description

Slab formwork support bar {The cross member for slab form}

The present invention relates to a slab formwork support bar, and more particularly, to a slab formwork support bar for easily placing and curing slab concrete.

In recent years, the trend of buildings has become larger in size. In particular, composite buildings with high ceiling heights from floor to ceiling concrete for slabs make up the mainstream. Various types of remodeling are frequently performed according to the tenants' preferences.

In addition, there is a need for a slab formwork support bar which is formed to have a large separation distance between opposing wall concrete, and correspondingly, it is possible to easily cast slab concrete regardless of the proximity of the wall concrete.

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 curing concrete by pouring concrete inside the wall formwork and the upper surface of the slab formwork.

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.

In the case of the deck panel, it is possible to systemize the slab formwork compared to plywood to improve the construction accuracy, and to increase the installation efficiency, the formwork structure consisting of the slab formwork systematically is disclosed in Korea Patent Publication No. 2004-42029 Is disclosed.

The structure is made of “H” steel and is characterized by the ease of dismantling of the slab formwork by supporting the deck panels with a bendable support bar, but in the case of the support bar applied thereto, the structure can be simply bent by a link. If the support bar is bent downward after removing the supporter during the dismantling of the formwork, the support bar is bent due to the weight of the deck panels, so the descending speed is fast, so that a separate device for slowing the descending speed is not provided and a safety accident may occur. have.

Therefore, in order to solve the above problems, "applicable slab formwork support bar" is disclosed in Korean Patent Registration No. 812551 filed by the present applicant.

1 is a combined state diagram showing a conventional slab formwork support bar easy to dismantle, Figure 2 is a partially enlarged view showing a coupled state of the support bar in FIG.

As shown, the conventional slab formwork support bar, which is easy to dismantle, includes a pair of wall formwork connecting bars 20 and 20 'respectively coupled to upper ends of two opposing wall formwork 11; A pair of support plates 30 and 30 'coupled to the formwork connecting bar 20, the guide pins P being vertically coupled to the other side; Two plate members rotatably coupled to each other, the first panel 41 in which the guide pin P is guided along the guide hole G1 formed in the center portion, and the second panel 42 in which the guide hole G2 is formed in the center portion. A pair of link members 40 and 40 '; As a tube having a guide hole (G3) formed through the inner peripheral surface, the second panel 42 is inserted into the guide hole (G3) of both ends is configured to include a die support bar 50 which is supported horizontally.

Therefore, looking at the dismantling process using the slab formwork support bar easy to dismantle as described above step by step,

Dismantling and lifting the wall formwork (11)-> Lowering the supporter beam constant distance-> Dismantling the deck panel (D)-> Dismantling the beam joint-> Lowering the supporter (S) constant distance-> Dismantling the deck panel (D) And lifting-> support (S) dismantling and lifting-> support beam dismantling and lifting-> slab corner dismantling and lifting.

However, the conventional slab formwork support bar, which is easy to dismantle, assumes that the remaining components are coupled to a pair of wall formwork connecting bars 20 and 20 'respectively at the upper ends of the two opposing wall forms 11. Bars are sequentially coupled to the pair of wall formwork connecting bars (20, 20 '), there is a problem that can not be applied to the slab formwork support bar in the recent large building is formed large distance between the opposite wall concrete .

The present invention was created in view of the above problems, and the trend of the building shows a trend toward larger size, in particular, the composite building with high ceiling height from the floor surface to the slab concrete forming the ceiling is mainstream. Various types of remodeling are frequently performed according to the tenants' preferences for each interior space of the building to be built, and the distance between the facing concrete is largely formed, and correspondingly, the slab concrete is irrelevant regardless of the proximity of the wall concrete. An object of the present invention is to provide a slab formwork support bar that can be easily poured.

The object of the present invention, a pair of deck panel connection bar for supporting the bottom of the slab concrete is coupled to the upper end of the discharge end of the pair of connecting bar coupling member embedded in the slab concrete; A pair of support panels coupled to the inner circumferential surface of each deck panel connection bar; A pair of link members rotatably coupled to the respective support panels; A die support bar guided along the guide hole of the pair of opposing link members; This is accomplished by including a pair of supporters that support each bottom of the support panel.

According to the present invention, the tendency of the building shows a trend toward larger size, in particular, the composite building with high ceiling height from the floor surface to the slab concrete forming the ceiling is the mainstream and the slab concrete regardless of the proximity of the wall concrete in the situation There is an effect that can be easily poured.

In addition, it is possible to construct large buildings without the adjacent wall concrete, so that the tenants can remodel the interior spaces of the building in various forms according to their tastes, but they do not suffer the construction obstacles due to the wall concrete. There is this.

The slab formwork support bar is a slab formwork support bar for supporting a plurality of deck panel bottoms on which concrete for slab is placed on an upper surface, a pair of connecting bar coupling members having one end embedded in the slab concrete; A tubular body having a lower end portion having a recessed cross section, the pair of deck panel connection bars having the other end detachably coupled to an upper surface of the connection bar coupling members and supporting the concrete bottom surface of the slab; A pair of support panels coupled to a connection panel integrally provided on an inner circumferential surface of each deck panel connection bar, and having a pair of first guide pins at both edges of a lower end thereof; A two plate member rotatably coupled, the pair of link members comprising a first panel on which the guide pin is guided along a guide hole formed in the center portion, and a second panel on which the guide hole is formed in the center portion; Second guide pins respectively provided at both ends along guide holes of a pair of opposing link members, the die supporting bars having a plurality of deck panels stacked on an upper surface thereof; The upper end of the sliding bar is inserted into the through hole of the upper end of the fixed rod that the lower end is vertically supported on the bottom surface, characterized in that it comprises a pair of supporters for supporting the bottom of each support panel, in detail Looking at it as follows.

The connecting bar coupling member of the slab formwork supporting bar of the present invention is embedded in the slab concrete when one end is embedded in the slab concrete, and the other end is embedded in the state where the one end embedded in the slab concrete is supported when the slab concrete is poured and curing and construction are completed. Including a pair of deck panel connecting bar coupled to the end is a component that is coupled to each deck panel connecting bar to ensure that the ultimately supported deck panel is supported.

At this time, the connecting bar coupling member can be used as a coupling member of various forms, in the case of the bolt and nut, the head (head) of the bolt (embedded) in the slab concrete and the threaded portion is separated from each deck panel connection bar If possible, but the nut is coupled to the thread by using the nut to remove the deck panel when dismantling, it is preferable to configure the other components except for the coupling member to be disassembled, if any other form of detachable other than bolts and nuts In addition, any type of coupling member may be used.

In addition, the deck panel connection bar of the slab formwork support bar of the present invention, the upper end is coupled to a pair of connecting bar coupling member whose one end is embedded in the slab concrete, after the construction of the slab concrete is completed, a number of deck panels Most of the load including the formwork support bar to enable dismantling, it is manufactured to be configured in the longitudinal direction to have the same cross-section by a method such as extrusion.

Here, the deck panel connecting bar is a tubular body having a lower end of the Dich (C) shaped cross-section, the other end of each connecting bar coupling member is selectively detachably coupled to the upper surface by a component such as a nut, It is configured to support one side of the concrete bottom surface for the slab.

In addition, the support panel of the slab formwork support bar of the present invention is a component that allows each of the link members to be supported on a pair of first guide pins formed on the other side while one side is coupled to the deck panel connection bar, the support panel is The inner circumferential surface of each deck panel connection bar is coupled to each connection panel that is integrally provided at regular intervals in the longitudinal direction, and a pair of first guide pins is provided at both edges of the lower end.

In addition, the link member of the slab formwork support bar of the present invention is an intermediate member which mediates the support panel and the formwork support bar relative motion in a certain range, and the formwork support bar is the highest point from the bottom surface while the construction of the slab concrete is completed. Although it is located in the slab, when the construction of the slab concrete after the completion of the deck panel is a component that links the formwork support bar to be located at the lowest point from the floor surface.

At this time, the link member of the slab formwork support bar of the present invention comprises two units that are rotatably coupled to each other and constitutes one unit, and a pair of these units is provided, and the guide pin is guided along the guide hole formed in the center. It consists of a first panel and a second panel formed with a guide hole in the center, it is configured so that one side of the second panel is caught by the support pin formed on one side of the first panel.

In addition, the formwork support bar of the slab formwork support bar of the present invention is a component supported by a pair of deck panel connection bars, respectively, both ends are coupled to the link member, a plurality of deck panels after the construction of the slab concrete is completed Until dismantling the die support bar is moved from the highest point to the lowest point from the bottom surface.

Here, the die support bar is produced through a process such as extrusion so that a constant cross section is formed in the longitudinal direction, the second guide pins are provided at both ends along the guide hole of the pair of opposing link members, the upper guide is A plurality of deck panels are arranged in the stack.

In addition, the deck panel of the slab formwork support bar of the present invention is generally made of aluminum or the like and the bottom surface is supported by the formwork bar, and the slab concrete is poured on the upper surface of a plurality of continuous successive deck panels.

In addition, the supporter of the slab formwork support bar of the present invention, including the slab concrete and the plurality of deck panels stacked on the upper surface of the formwork bar until the construction is completed, including the overall load of the slab concrete laid on the upper surface It is a component supported by a pair.

Here, the supporter is to support the bottom of each support panel until dismantling a number of deck panels, but when the withdrawal of the equipment when the concrete construction for the slab is completed, the overall length is reduced to a minimum, which is the bottom portion perpendicular to the floor The upper end of the sliding bar is inserted into the through hole of the upper end of the fixed rod to be supported by the support is configured to support the bottom of each support panel.

In addition, a screw thread is formed on an outer circumferential surface of the sliding bar, and a driver is provided on one side of the fixed rod and coupled to a screw thread formed on an outer circumferential surface of the sliding bar to allow the sliding bar to be transferred in the vertical direction. The driver may be either a manual release or an electric drive by motor driving.

Hereinafter, a preferred embodiment of the slab formwork support bar according to the present invention will be described based on the accompanying drawings.

Figure 3 is a state diagram showing the slab formwork support bar of the present invention, Figure 4 is a partially enlarged view showing the center of the link member in FIG.

The slab formwork support bar of the present invention, in the slab formwork support bar for supporting a plurality of deck panel bottoms on which slab concrete is placed on the upper surface, a pair of connecting bar coupling members (111, 111) having one end embedded in the slab concrete (C) ')Wow; A lower end of the tubular body having an open-shaped cross section (C), the other end of each connecting bar coupling member (111, 111 ') is detachably coupled to the upper surface, a pair of supporting the bottom surface of the slab concrete (C) Deck panel connection bars 110 and 110 '; A pair of support panels coupled to the connection panels 112 and 112 'integrally provided on the inner circumferential surfaces of the deck panel connection bars 110 and 110', and provided with a pair of first guide pins 121 and 121 'at both edges of the lower end. 120,120 '); Two plate members rotatably coupled to each other, the first panels 131 and 131 'on which the guide pins 121 and 121' are guided along the guide hole G1 formed in the center portion, and the second panel on which the guide hole G2 is formed in the center portion. A pair of link members 130 and 130 'composed of 132 and 132'; The second guide pins 141 and 141 'provided at both ends are guided along the guide holes G2 of the pair of link members 130 and 130' facing each other, and formwork supporting a plurality of deck panels 150 are stacked on the upper surface. A bar 140; A sliding bar having a lower end portion inserted into a through hole of an upper end of a fixing rod 161 supported vertically to the bottom surface G, and having a length adjustable as the driver 163 coupled to one side of the fixing rod 161 is operated ( 162, and an upper end of the sliding bar 162 includes a pair of supporters 160 and 160 'supporting the bottom surface of each of the support panels 120.

Therefore, according to the slab formwork support bar configured as described above, in the state in which the pair of supporters (160,160 ') is extended to the height of the slab concrete (C) construction, each upper end supports the bottom of the support panel 120 The other end of each of the connecting bar coupling members 111 and 111 'coupled to the upper end of the pair of deck panel connecting bars 110 and 110' is embedded in the slab concrete C, wherein the pair of supporters 160 and 160 'are interposed therebetween. Stacked on each formwork bar 140 located on the upper surface, but the slab concrete (C) is placed on the upper surface of the plurality of deck panel 150 but is maintained until the construction is completed.

FIG. 5 is a state diagram illustrating an intermediate state in which a plurality of deck panels are dismantled from the slab formwork support bar of the present invention. FIG. 6 is a partially enlarged view of the link member in FIG. 5, and FIG. FIG. 8 is a state diagram illustrating a final state in which a plurality of deck panels are dismantled from the slab formwork support bar, and FIG. 8 is a partially enlarged view of a link member in FIG. 7.

As shown, when the slab formwork support bar according to the present invention for the construction of slab concrete (C) is placed in the slab concrete in the state of maintaining the initial position, the concrete for the slab proceeds curing Finally, the concrete construction is completed. (FIG. 3 to 4)

Therefore, after the slab concrete (C) construction is completed, prior to dismantling the slab formwork support bar of the present invention lowers the height of the formwork support bar 140, at this time guide holes of the pair of link members (130, 130 ') facing Second guide pins 141 and 141 'formed at both ends of the formwork supporting bar 140 are guided along G2.

The second guide pins 141 and 141 'are guided along the guide holes G2 of the link members 130 and 130', and at the same time, the second guide pins 131 and 131 'are guided along the guide holes G1 formed at the center thereof. Guide pins 121 and 121 'are guided, the height of the die support bar 140 is lowered, the upper surface of the plurality of deck panel 150 is separated from the bottom surface of the slab concrete (C), the plurality of The deck panel 150 is recovered, and then the slab formwork support bar of the present invention is dismantled in the reverse order of the installation procedure. (FIG. 5 to FIG. 8).

Reference numeral P is a filler panel.

1 is a combined state showing a conventional slab formwork support bar easy to dismantle.

2 is a partially enlarged view showing a coupling state of the support bar in FIG.

Figure 3 is a coupled state showing the present invention slab formwork support bar.

FIG. 4 is a partially enlarged view of the link member of FIG. 3.

Figure 5 is a combined state showing an intermediate state of the plurality of deck panels dismantled from the slab formwork support bar of the present invention.

FIG. 6 is a partially enlarged view of the link member of FIG. 5.

Figure 7 is a combined state showing the final state of the plurality of deck panels dismantled from the slab formwork support bar of the present invention.

FIG. 8 is a partially enlarged view of the link member of FIG. 7.

              <Description of Symbols for Main Parts of Drawings>

110: deck panel connection bar 111: connection bar coupling member

120: support panel 130: link member

131: first panel 132: second panel

140: formwork support bar

Claims (3)

In the slab formwork support bar for supporting a plurality of deck panel bottoms on which concrete for slab is cast on the upper surface, A pair of connecting bar coupling members (11 1,111 ') having one end embedded in the slab concrete (C); A lower end of the tubular body having an open-shaped cross section (C), the other end of each connecting bar coupling member (111, 111 ') is detachably coupled to the upper surface, a pair of supporting the bottom surface of the slab concrete (C) Deck panel connection bars 110 and 110 '; A pair of support panels coupled to the connection panels 112 and 112 'integrally provided on the inner circumferential surfaces of the deck panel connection bars 110 and 110', and provided with a pair of first guide pins 121 and 121 'at both edges of the lower end. 120,120 '); Two plate members rotatably coupled to each other, the first panels 131 and 131 'on which the guide pins 121 and 121' are guided along the guide hole G1 formed in the center portion, and the second panel on which the guide hole G2 is formed in the center portion. A pair of link members 130 and 130 'composed of 132 and 132'; The second guide pins 141 and 141 'provided at both ends are guided along the guide holes G2 of the pair of link members 130 and 130' facing each other, and the formwork supporting bar having a plurality of deck panels 150 stacked on the upper surface thereof. 140; A pair of upper end portions of the sliding bar 162 inserted into the through-holes of the upper end of the fixing rod 161 that the lower end is vertically supported by the bottom surface G supports the bottom surfaces of the support panels 120. Slab formwork support bar comprising a supporter (160,160 '). The method of claim 1, The connecting bar coupling members 111 and 111 ', one end is embedded in the slab concrete (C), the other end is slab formwork, characterized in that selectively coupled to the deck panel connection bars (110, 110'). Support bar. The method of claim 1, The supporters 160 and 160 'have a screw thread formed on an outer circumferential surface of the sliding bar 162 and provided on one side of the fixed bar 161 to perform relative movement with a screw thread formed on an outer circumferential surface of the sliding bar 162. Slab formwork support bar, characterized in that the driver 163 is coupled to the bar 162 is transported in the vertical direction.

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