KR101180845B1 - Supporting System for Slab Form and Construction Method Using the Same - Google Patents

Abstract

PURPOSE: A form supporting frame for a slab form and a wall-type method using the same are provided to prevent a slab form from being suddenly dropped by gradually controlling the height of the slab form when the slab form is dismantled in a concrete slab work. CONSTITUTION: A form supporting frame for a slab form comprises holders(10), connection plates(20), a horizontal support(30), supports(40), connection bars(50), rotating pins(P1), and moving pins(P2). The connection plates have pin holes and are coupled at the exterior bottom of the holders at predetermined intervals along a longitudinal direction of the holders. The horizontal support has pin holes in both longitudinal ends and is horizontally installed between the holders facing each other to support a slab form. The supports are vertically installed at the bottom of the horizontal support to support the horizontal support. Each connection bar comprises a longitudinal coupling hole and two or more slot holes(52a,52b) in multiple stage. The rotating pins are mounted on the coupling hole of the connection bars and the pin holes of the connection plates. The moving pins are detachably mounted on the slot holes of the connection bars and the pin holes of the connection plates.

Description

Improved formwork supporting frame for stepping up and down of slab formwork and construction method of wall structure using same {Supporting System for Slab Form and Construction Method Using the Same}

The present invention relates to a formwork support frame that can prevent the descent of the slab formwork and a preferred method of using the same, more specifically, the slab formwork configured to adjust the height of the horizontal support for supporting the slab formwork step by step only a simple pin operation. It relates to a formwork supporting frame of, and to a method of constructing a wall structure using this preferably.

Construction of the structure using reinforced concrete is carried out in the order of placing concrete, such as formwork, and then placing concrete.

In particular, the construction of each layer slab of the structure is achieved by pouring concrete at the same time as the lower wall part. Therefore, when constructing slabs, the wall formwork for (n) layered walls is installed on the front and rear of the wall respectively, and the slab formwork of (n + 1) layer is placed on the upper side of the wall formwork facing the walls which are spaced apart at regular intervals. After installing horizontally, concrete for walls and slabs is placed and cured inside the wall formwork and the upper part of the slab formwork, followed by the process of dismantling temporary materials such as wall formwork and slab formwork.

On the other hand, since the slab formwork is supported by the wall formwork, it is insufficient to support the load of concrete poured on the upper portion. Therefore, a vertical support should be provided below the slab formwork to support the load on the top of the slab. For this reason, when dismantling the slab formwork, the support is dismantled and the slab formwork is demolded. However, in this process, there is a problem that the slab formwork drops sharply by the weight of the slab formwork at the same time as the support is removed. The problem of descent of slab formwork causes noise on the construction site, and damages the formwork itself, leading to a problem of reducing the recycling rate of temporary materials.

In order to solve the problem of descent of slab formwork, the inventor has developed a formwork support frame as shown in FIG. Figure 1 is a formwork support frame according to Patent Application No. 10-2008-0119668, as shown to be configured to connect and support the horizontal support for supporting the slab formwork via a connecting bar to the cradle facing each other. The formwork support frame is a horizontal support pin is coupled with the throttle hole of the connecting bar is lowered along the slot hole, the horizontal support by the two slot holes is a way to step down. However, since the formwork frame must be pinned to the rear slot hole in the state of releasing the pin coupling by the slot slot hole for the stepping down of the horizontal support, in the process of pin coupling to the rear slot hole, It was cumbersome to adjust the position and find the pin position.

The present invention was developed to improve the problem of the step down of the formwork support frame according to the patent application No. 10-2008-0119668, the pin coupling to the rear slot hole simply without releasing the pin coupling by the slot hole of the front There is a technical problem in providing an improved formwork supporting frame.

In order to solve the above technical problem, the present invention, cradles are installed to face each other; A connection plate having a pinhole formed therein, the coupling plate being coupled to the lower side of the cradle at regular intervals along the longitudinal direction of the cradle; A horizontal support being horizontally installed between the pedestals facing the pinholes at both ends of the longitudinal direction to support the slab formwork; A support vertically installed below the horizontal support to support the horizontal support 30; And a connecting bar in which a coupling pin and two or more slot holes are formed in multiple stages along a longitudinal direction, and a rotation pin is mounted in the pin hole of the coupling hole and the connection plate, and the movable pin is detachably mounted in the pin hole of the slot hole and the horizontal support. It is configured to include; by the rotation pin connecting bar is rotated relative to the connection plate while the moving pin is moved along the slot hole of the connection bar by the rotation of the connection bar, the horizontal support is made up and down,

The pinhole of the horizontal support is formed at the position where the connecting bar and the horizontal support are coupled by the moving pins through the slot hole on the ship, and the moving pin moves along the slot hole on the ship. The second hole is formed at the position where the connecting bar and the horizontal support are coupled by the moving pin through the rear slot hole when the tip is reached, so that the moving pin is moved along the slot hole of the connecting bar by the rotation of the connecting bar. It provides an improved formwork support frame for the step-down of the slab formwork, characterized in that it is possible to simultaneously install the moving pins in the slot hole on the front and the slot hole in the rear slots.

In another aspect, the present invention is a method for constructing a wall structure preferably using the above-mentioned improved formwork support frame, the wall formwork face to face, and then installing the mounting plate coupled to the cradle on the upper wall formwork; Installing a horizontal support between the mounting brackets facing each other while installing the connecting bar by mounting the rotating pin and mounting the moving pin in the first hole, while supporting the horizontal support by installing a support under the horizontal support; Installing slab formwork on top of the horizontal support, and then placing concrete constituting the slab and walls; Demoulding the wall formwork after curing of concrete, removing the support or lowering the height of the support to induce the rotation of the connecting bar and the movement of the moving pin to lower the horizontal support and demold the slab formwork; Removing the moving pins of the first hole after installing the moving pins in the second hole to further induce the rotation of the connection bar and the movement of the moving pins to further lower the horizontal support; construction of the wall structure comprising the Provide a method.

According to the present invention, the following effects can be expected.

First, since the height of the slab formwork can be slowly adjusted during the dismantling of the slab formwork in the concrete slab construction, it is possible to prevent a sudden drop of the slab formwork. Accordingly, the noise caused by the dismantling of the temporary material can be minimized and the complaints caused by this can be resolved with water, thereby reducing the damage of the temporary material and improving the reuse rate of the temporary material.

Second, since the present invention is possible to step up and down the slab formwork only by a simple pin operation, it is possible to reduce the effort required to install and dismantle the temporary material to improve the workability.

1 shows a formwork supporting frame according to Patent Application No. 10-2008-0119668.
Figure 2 is a block diagram of a basic embodiment of the formwork support frame according to the present invention.
Figure 3 is a block diagram of another embodiment of the formwork support frame according to the present invention.
Figures 4a to 4e shows a step-by-step process for the wall structure construction method using the formwork support frame of FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

Figure 2 is a configuration diagram for a basic embodiment of the formwork support frame according to the present invention, shows the relationship between the connecting bar 50 and the horizontal support 30 when demolding the slab formwork (SF). The present invention relates to a formwork supporting frame for supporting a slab formwork, and comprises a cradle 10, a connecting plate 20, a horizontal support 30, a support 40, a connecting bar (50). Formwork support frame by this configuration is similar to the conventional formwork support frame as a whole, but there is a difference in the coupling method of the connecting bar 50 and the horizontal support (30). In order to step up and down the horizontal support 30 by the pin operation is to propose a new coupling method of the connecting bar 50 and the horizontal support 30 in the present invention.

The cradle 10 is a longitudinal member which is installed to face each other, and is configured such that both ends of the horizontal support 30 supporting the load of the slab concrete are connected. In FIG. 2, while installing the construction example of a wall structure, it is installed along the upper end of the wall formwork (WF) which faces. The cradle 10 may be provided as a four-member pipe-shaped member, but it is preferable to form the opening 11 by cutting the lower surface in a portion or the entirety in a B-shape (see FIG. 4A). The opening 11 is used as an installation space of the connection plate 20.

The connection plate 20 is a pinhole 21 is formed in the surface of the plate-like member, it is installed coupled to the lower bottom of the cradle 10 at regular intervals along the longitudinal direction of the cradle 10. The connection plate 20 is installed as a coupling medium of the cradle 10 and the connection bar 50. If the mounting plate 20 is a cradle 10 having an opening 11 formed in the square pipe is applied, the connecting plate 20 is preferably inserted into the inside of the square pipe through the opening 11 to be bonded to the inner side (see FIG. 4A). ), Which allows the end of the horizontal support 30 to be received into the holder 10 through the opening 11 in the state in which the horizontal support 30 supports the slab formwork at the time of concrete placement. This is to directly support the support 30 (see Fig. 4b).

The horizontal support 30 is a horizontal longitudinal member in which the pinholes 32a, 32b, and 32c are formed at both ends in the longitudinal direction. The horizontal support 30 is horizontally installed between the mounting brackets 10 facing each other to support the slab formwork SF. . The horizontal support 30 is preferably provided with a chamfered member at the lower end of both ends, in order to effectively accommodate the end of the horizontal support 30 into the holder 10 through the opening 11 of the holder. (See FIG. 4B). In particular, the horizontal support 30 is formed with a pin hole, in the present invention, the pin hole is divided into a first hole 32a, a second hole 32b, and a third hole 32c according to the type of pin to be coupled. This will be described below together with the connection bar 50.

The support 40 is a member installed vertically on the lower portion of the horizontal support 30 to support the horizontal support 30, and thus becomes a common copper club. The support 40 is preferably configured of the inner tube and the exterior so that the height can be adjusted, which is to effectively realize the stepping up and down of the horizontal support (30). Through the adjustment of the height of the support 40, the support 40 is intended to induce the ascending and descending of the horizontal support (30).

The connection bar 50 is a member in which the coupling hole 51 and the two or more slot holes 52a and 52b are formed in multiple stages along the length direction, and are installed as a connection medium between the connection plate 20 and the horizontal support 30. . Mounting the rotating pin (P1) in the coupling hole 51 of the connecting bar and the pin hole 21 of the connecting plate, and the movable pin (32a, 32b) of the slot hole (52a, 52b) of the connecting bar and the horizontal support P2) is detachably mounted. In the present invention, the connecting bar 50 may be provided with a structure in which the coupling hole 51 and the highest slot hole 52a are integrally formed as in the conventional formwork supporting frame of FIG. 1 (coupling in FIG. 1). You can see the connecting bar where only two slot holes are formed with the hole omitted. As a result, the connecting bar 50 is rotated based on the connecting plate 20 by the rotating pin P1, while the moving pin P2 rotates the slot holes 52a and 52b of the connecting bar by the rotation of the connecting bar 50. While moving along, the horizontal support 30 is moved up and down.

In particular, in the present invention, the coupling of the movable pin P2 to the slot hole 52a on the line by the coupling method of the movable pin P2 by the slot holes 52a and 52b between the horizontal support 30 and the connecting bar 50. Proposed a structure that can be coupled to the moving pin (P2) in the rear slot hole 52b in the state without release, this structure is the first support 32a and the second hole 32b in the horizontal support 30 It becomes possible by forming a pinhole by (). In other words, as the pin hole of the horizontal support 30, the first hole 32a at the position where the connecting bar 50 and the horizontal support 30 are coupled by the moving pin P2 through the slot hole 52a on the line. ) And at the same time when the moving pin (P2) moves along the slot hole (52a) on the line to reach the end of the slot hole (52a), the connecting bar (50) and the horizontal through the rear slot hole (52b) The support 30 is to form a second hole (32b) in the position where the coupling by the moving pin (P2). As the first hole 32a and the second hole 32b are formed in the horizontal support 30 as described above, the moving pin P2 moves along the slot hole 52a of the connection bar by the rotation of the connection bar 50. It is possible to simultaneously mount the moving pins P2 to the slot hole 52a on the line and the slot hole 52b on the rear side in this state, so that the lifting and lowering of the horizontal support 30 can be performed step by step only by the operation of the moving pin P2. (See FIGS. 4D and 4E).

Furthermore, a pin hole corresponding to the third hole 32c may be further formed in the horizontal support 30 at a predetermined position, which is connected to the support bar in a state in which the horizontal support 30 is elevated to support the slab formwork SF. The fixing pin P3 is detachably mounted to any one of the slot hole 52a and the third hole 32c of the 50. Mounting the fixing pin (P3) to support the slab formwork (SF) with a horizontal support (30) stably (see Figs. 4b and 4c), while dropping the fixing pin (P3) connecting bar 50 Rotate and the moving pin (P2) to move so that the horizontal support 30 can be freely moved up and down.

3 is another embodiment of a formwork support frame according to the present invention. If FIG. 2 is an example implemented to enable stepping up and down in two stages, FIG. 3 is an example implemented to enable stepping up and down in three stages. In order to move up and down in three stages, three slot holes 52a and 52b of the connecting bar may be formed and another second hole 32b of the horizontal support may be formed. Although not shown in the drawing, the slot hole 52a of the connection bar and the second hole 32b of the horizontal support may be appropriately formed to enable the multi-stage stepping up and down.

4a to 4e show a step-by-step process for the construction method of the wall structure using the formwork support frame of FIG.

First, the wall formwork WF is installed, and then the wall formwork WF is installed on the wall formwork WF facing the coupling plate 20 (first step, FIG. 4A). In FIG. 4A, the holder 10 is fixed to the wall formwork WF by pin bonding. In particular, in Figure 4a is a cradle 10 is cut in the bottom of the square pipe to form the opening (11) and the connecting plate 20 is inserted into the holder 10 is installed, and the holder 10 is a wall of the lower It can be seen that more protruding than the formwork (WF), which is the horizontal support 30 when the horizontal support 30 is elevated so that the end of the horizontal support 30 is accommodated in the interior of the holder 10 through the opening 11 and the horizontal support This is to reduce the interference between the horizontal support 30 and the wall formwork or the finished wall when the 30 is lowered (see Figs. 3b and 3d). Meanwhile, as shown in FIG. 4A, the connecting plate 20 is advantageously welded to the opening plate 11 of the cradle 10 in a stable manner.

Subsequently, the horizontal support 30 is installed between the mounting brackets 10 facing each other while installing the connecting bar 50 by mounting the rotating pin P1 and mounting the moving pin P2 to the first hole 32a. The support 40 is installed below the horizontal support 30 to support the horizontal support 30 (second step, FIG. 4B). In FIG. 4B, as a result of adopting the horizontal support 30 having the pinhole corresponding to the third hole 32c, the fixing pin P3 is mounted to stably fix the horizontal position of the horizontal support 30.

Next, the slab formwork SF is installed on the upper portion of the horizontal support 30, and then the concrete 60 constituting the slab and the wall is poured (third step, FIG. 4C). Slab formwork (SF) is installed so as to be located between the facing pedestal (10), in particular, the width of the slab formwork (SF) facing the wall formwork (WF) because the cradle 10 is installed to protrude more than the wall formwork (WF) There is no fear of interference with the wall when demolding the slab formwork (SF) because it is smaller than the distance between As the slab formwork (SF), system formwork such as a deck panel can be used. In FIG. 4C, side decks (SD) at both ends to be demolded first and pillar decks (FD) at the center of demolding are installed.

Next, after curing the concrete 60, demolishing the wall formwork (WF), while removing the support 40 or lowering the height of the support 40, the rotation of the connecting bar 50 and the moving pin (P2) Inducing the movement to lower the horizontal support 30 and demolding the slab formwork (SF) (fourth step, Figure 4d). If the fixing pin (P3) is mounted, the fourth step proceeds while dropping the fixing pin (P3). When the support 40 is removed or the height of the support 40 is lowered, the connecting bar 50 is rotated by the rotation pin P1 and the moving pin P2 moves downward at the same time. Accordingly, the horizontal support ( 30) also goes down. However, the movement of the moving pin (P2) is stopped at the end along the slot hole 52a on the line, even if the support 40 is removed, the lowering of the horizontal support 30 is controlled to the slot hole 52a position on the line.

On the other hand, in general, since the temporary members for vertical members such as walls or columns are dismantled prior to the temporary members for horizontal members, the wall formwork WF is demolished first when the wall concrete reaches a predetermined strength through curing. However, in some cases, a part of the wall formwork (WF) can be present, which is intended to secure a stable position of the holder (10). The cradle 10 is fixed by the attachment force with the concrete 60 even if the formwork for the wall (WF) demoulding, but the wall formwork (WF) is part of the remaining to ensure the cradle 10 more securely. Instead of maintaining the wall formwork (WF), it is also possible to provide other means for fixing the position of the holder (10). In addition, since the slab concrete needs to be supported until it reaches a strength of about 140kgf / ㎠, which is higher than that of the wall concrete, the support 40 for supporting the pillar deck (FD) may be separately installed in the fourth step. May be performed by demolding only the side deck SD first and demolding the pillar deck FD later.

Finally, after the moving pin P2 is mounted in the second hole 32b, the connecting pin 50 is rotated and the moving pin P2 is removed by removing the moving pin P2 of the first hole 32a. Further induction lowers the horizontal support 30 further (fifth step, Figure 4e). The coupling position of the moving pin P2 is moved to the rear slot hole 52b to induce an additional lowering of the horizontal support 30. In particular, the moving pin (P2) is mounted in the slot hole 52b in the rear in the state that the moving pin (P2) is mounted in the slot hole (52a) on the front and then the moving pin (mounted on the slot hole (52a) on the front ( Since P2) is removed, the horizontal support 30 can be simply moved by simply mounting and removing the moving pin P2. If more than three slot holes 52a are formed as shown in FIG. 3, the fifth step may be repeated. The additional lowering of the horizontal support 30 allows the slab formwork SF to be lowered considerably at the installation location, allowing the operator to easily collect and reuse the used slab formwork SF for the next floor construction.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the present invention is not limited to the above-described exemplary embodiments, and various modifications, additions and substitutions may be made without departing from the scope of the present invention. And the scope of the present invention is defined by the appended claims.

10: holder
11: opening
20: connecting plate
21: pinhole
30: horizontal support
32a, 32b, 32c: pinhole
40: Support
50: connecting bar
51: coupling hole
52a, 52b: slot hole
60: concrete
P1: rolling pin
P2: moving pin
P3: push pin
WF: wall formwork
SF: slab formwork
SD: Slab Deck
FD: Pillar Deck

Claims (5)

As formwork supporting frame for supporting slab formwork,
Cradles 10 installed to face each other;
Pin holes 21 are formed in the plane, the connection plate 20 is installed coupled to the lower bottom of the cradle 10 at regular intervals along the longitudinal direction of the cradle 10;
Pinholes are formed at both ends in the longitudinal direction, and are horizontally installed between the mounting brackets 10 facing each other to horizontally support the slab formwork (SF);
A support 40 installed vertically on the lower portion of the horizontal support 30 to support the horizontal support 30; And,
The coupling hole 51 and two or more slot holes 52a and 52b are formed in multiple stages along the length direction, and the rotation pin P1 is mounted in the pinhole 21 of the coupling hole 51 and the connection plate, and the slot hole is formed. Connection bars 50 to which the moving pins P2 are detachably mounted in the pinholes 52a and 52b and the horizontal support 30;
By being configured to include, by the rotation pin (P1) connecting bar 50 is rotated relative to the connection plate 20 while the moving pin (P2) by the rotation of the connection bar 50 slot hole of the connection bar ( While moving along the 52a, 52b is made to raise and lower the horizontal support 30,
The pin hole of the horizontal support 30, the first hole 32a at the position where the connecting bar 50 and the horizontal support 30 is coupled by the moving pin P2 through the slot hole 52a on the line. At the same time, when the moving pin P2 moves along the slot hole 52a on the line to reach the end of the slot hole 52a, the connecting bar 50 and the horizontal supporter are formed through the rear slot hole 52b. The second hole 32b is formed at the position at which 30 is coupled by the moving pin P2, so that the moving pin P2 moves along the slot hole 52a of the connection bar by the rotation of the connection bar 50. Slab formwork, characterized in that the movable support pin (P2) can be simultaneously mounted to the slot hole 52a and the slot hole 52a at the rear side in the above state so that the horizontal support 30 can be moved up and down step by step. Formwork supporting frame for stepping up and down In claim 1,
The cradle 10 is a four-sided pipe shape of the lower surface is cut in the N-shaped opening 11 is formed,
The connection plate 20 is improved formwork support frame for stepping up and down of the slab formwork, characterized in that coupled to the inner surface of the cradle 10 through the opening 11 of the cradle. 3. The method according to claim 1 or 2,
The support 40 is an improved formwork support frame for stepping up and down the slab formwork, characterized in that the height can be adjusted. 3. The method according to claim 1 or 2,
The horizontal support 30 is a pin hole corresponding to the third hole 32c is further formed at a predetermined position, so that the horizontal support 30 is elevated to support the slab formwork SE to support the connecting bar 50. The fixed formwork frame for stepping up and down of the slab formwork, characterized in that the fixing pin (P3) is detachably mounted in any one of the slot hole (52a) and the third hole (32c) of. As a method of constructing a wall structure using the improved formwork support frame according to claim 1,
Installing the wall formwork (WF) face-to-face, and then installing the cradle 10 to which the connection plate 20 is coupled to the upper wall formwork (WF);
The horizontal support 30 is installed between the mounting brackets 10 facing each other while installing the connecting bar 50 by mounting the rotating pin P1 and mounting the moving pin P2 in the first hole 32a. Supporting the horizontal support 30 by installing the support 40 at the bottom of the support 30;
Installing slab formwork SF on top of the horizontal support 30, and then pouring concrete 60 constituting the slab and the wall;
After curing the concrete 60, demolish the wall formwork (WF), while removing the support 40 or lowering the height of the support 40 induces the rotation of the connecting bar 50 and the movement of the moving pin (P2). Lowering the horizontal support 30 and demolding the slab formwork SE;
After the moving pin P2 is mounted in the second hole 32b, the moving pin P2 of the first hole 32a is removed to further induce rotation of the connecting bar 50 and the movement of the moving pin P2. Further descending the horizontal support (30);
Construction method of the wall structure, characterized in that consisting of.

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