Fixing member of the lateral pressure fastener of formwork for beam construction and beam formwork structure using the same

Abstract

The present invention relates to a formwork for constructing a beam, wherein a fixing member (80) is fitted into a gap (5) formed by connecting a lateral pressure fastener (70)(70A) for connecting a horizontal connecting member (60) between left and right side plates (SP) that constitute the formwork for beam construction to a connecting ring (16) or a horizontal protrusion (19) of the side plate (SP), and the one side (82a) and the other side (82b) of the fixing member (80) are respectively in close contact with the inner wall facing each other between the side plate (SP) and the lateral pressure fastener (70)(70A). Even if the connection of the horizontal connecting member (60) is excluded after the prior connection of the lateral pressure connecting member (70)(70A), it is fixed at a desired fixed position to prevent detachment or movement, thereby allowing the horizontal connecting member (60) to be smoothly connected after moving to the site and after the placement of reinforcing bars (150) or additional work.

Description

Technology Field

[0001] The present invention relates to a formwork for beam construction, and more specifically, to a structure of a beam formwork that prevents the detachment and movement of a lateral pressure fastener attached to a beam formwork that is transported to the site in an assembled state, and enables it to withstand not only the lateral pressure of the poured concrete but also the load. Background Technology

[0002] In order to increase the load-bearing capacity of the building's ceiling, a beam is formed below the ceiling, and to form the said beam, a formwork capable of pouring concrete is installed.

[0003] Generally, for beam construction, there is a basic formwork for delivery to the site; once the basic formwork is installed at the site, the formwork is completed as additional reinforcing bars are placed, and subsequently, concrete is ultimately poured into the formwork.

[0004] The applicant of the present application has registered Korean Patent No. 10-2382532, “Lateral pressure fastener for formwork for constructing beams, columns, and walls” (Prior Art).

[0005] The basic formwork (100) according to the prior art is configured such that side plates (SP) are vertically connected to both sides of a lower plate (DP) as shown in FIG. 1, and U-stirrs (40) are connected to the inside.

[0006] Meanwhile, according to the prior art, a horizontal connecting member (60) is connected via a lateral pressure binding member (70) to withstand lateral pressure,

[0007] Since the horizontal connecting member (60) interferes with work when reinforcing bars (150) are formed long in the front and back directions during on-site construction or when additional work is performed, the connection must be made after the reinforcing bars (150) are finished.

[0008] Considering this, when moving the basic formwork for beam construction to the site, it is preferable to move it without connecting the horizontal connecting member (60), but the lateral pressure connecting member (70) is connected to the designated position, which is advantageous for future work, so this is desired by the site workers.

[0009] However, in this case, even if the lateral pressure fastener (70) is attached to the side plate (SP) in advance, the horizontal connecting member (60) is not attached (is not fixed), so the lateral pressure fastener (70) may come off or move around due to shaking during movement. Prior art literature

[0010] Korean Registered Patent No. 10-2382532 “Lateral Pressure Binding Device for Formwork for Construction of Beams, Columns, and Walls” The problem to be solved

[0011] Accordingly, the present invention provides a fixing member of a lateral pressure fastener that allows the lateral pressure fastener (70) to be fastened in a fixed position even when moving to the site after the lateral pressure fastener (70) is fastened in advance when assembling a basic formwork, thereby enabling the horizontal connecting member (60) to be fastened smoothly after the reinforcement (150) is placed or additional work is performed.

[0012] Another objective of the present invention is to provide a more robust beam formwork structure based on a fixing member of a lateral pressure fastener. means of solving the problem

[0013] The present invention for achieving the above-mentioned purpose comprises attaching a lateral pressure fastener (70)(70A) for connecting a horizontal connecting member (60) between left and right side plates (SP) constituting a formwork for beam construction to a connecting ring (16) or horizontal protrusion (19) of the side plate (SP) to form a gap (5) in which a fixing member (80) is fitted, wherein one side (82a) and the other side (82b) of the fixing member (80) are respectively in close contact with the inner wall facing each other between the side plate (SP) and the lateral pressure fastener (70)(70A).

[0014] It is characterized by being fixed at a desired fixed position so as not to detach or move, even if the connection of the horizontal connecting member (60) is excluded after the prior connection of the lateral pressure connecting member (70)(70A), thereby allowing the horizontal connecting member (60) to be smoothly connected after moving to the site and after the placement of reinforcing bars (150) or additional work. Effects of the invention

[0015] The present invention has the advantage that when assembling a basic formwork, a solid connection is maintained at a fixed position even when moving to the site by connecting the fixing member (80) after the prior connection of the lateral pressure connecting member (70), and thereby the horizontal connecting member (60) can be smoothly connected after the subsequent arrangement of reinforcing bars (150) or additional work.

[0016] In addition, there is an advantage in being able to construct a more robust beam formwork structure based on the fixing member (80) of the lateral pressure binding device. Brief explanation of the drawing

[0017] Fig. 1. Configuration diagram of a formwork for beam construction according to the applicant's existing registered patent (prior art), FIG. 2 is a drawing illustrating the connection relationship between unit members, namely, a corner plate (A), a connecting medium plate (B), and a unit extension plate (C). FIG. 3 (Fig. 3a to FIG. 3b) is a configuration diagram of a formwork (2) for beam construction and an enlarged configuration diagram of a fixing member (80) according to an embodiment of the present invention. FIG. 4 is a drawing showing the side configuration of FIG. 3 and various embodiments of the fixing member (80). FIG. 5 is a drawing showing the state in which a fixing member (80) is applied to a lateral pressure binding member (70A) according to another embodiment of the present invention. FIG. 6 (Fig. 6a to 6c) is a drawing illustrating a beam formwork structure using a fixing member (80) of a lateral pressure binding device for a beam construction formwork. Figure 7 is a photographic drawing showing the experimental results of applying a load to the upper part of the side plate (SP). Specific details for implementing the invention

[0018] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] In the description of the present invention, the description of the three types of deck plates (unit members) having specific shapes developed by the applicant, namely the corner plate (A), the connecting medium plate (B), and the unit extension plate (C), is described in the aforementioned prior art, but since the present invention is based thereon, it is described again with reference to FIG. 2 as follows.

[0020] first, The corner plate (A) is extended in the longitudinal direction, and at both ends of the wall (11) which is bent into an L shape, a bead (14) is formed that extends inwardly and is orthogonally extended, and at both ends of the beads (14), a connecting ring (16) is formed that is bent to form an acute angle with the beads (14).

[0021] Second, The connecting medium plate (B) is configured such that a bead (14) extending orthogonally is formed at each end of a flat wall (12) extending in the longitudinal direction, and a connecting ring (16) extending at the end of each bead (14) facing each other is bent inwardly to form an acute angle with the bead (14).

[0022] Third, The unit extension plate (C) is configured such that a bead (14) extending orthogonally is formed at each end of a flat wall (12) extending in the longitudinal direction, and a connecting ring (16) extending in the same direction and forming an acute angle with the bead (14) is formed at each bead (14). When an embossing (M) is formed on each of the unit members, rigidity is imparted.

[0023] Meanwhile, since the description of the lower plate (DP), side plate (SP), and fixing clip (50), etc., using the above-mentioned corner plate (A), connecting medium plate (B), and unit extension plate (C) is described in the prior art, the description thereof is omitted and will be explained as necessary in relation to the present invention.

[0025] Referring to FIG. 3 (Fig. 3a to Fig. 3b) and FIG. 4 together, a lateral pressure binding member (70) is connected in correspondence between connecting rings (16) facing the inner side of the side plate (SP) in the formwork (2) for beam construction, and the horizontal connecting member (60) is not connected in advance because it interferes with the placement of reinforcing bars (150) that are formed long in the front and back directions during on-site construction or additional work.

[0026] Nevertheless, a fixing member (80) having the characteristic part of the present invention is attached so that the pre-assembled lateral pressure fastener (70) does not come off or move around due to shaking while moving to the site.

[0027] A fixing member (80, hereinafter also simply referred to as a "fixing member") of a lateral pressure fastener for a beam construction formwork according to one embodiment of the present invention is fitted into a gap (5) formed by connecting a lateral pressure fastener (70) for connecting a horizontal connecting member (60) between the left and right side plates (SP) constituting the beam construction formwork to the connecting ring (16) of the side plate (SP). That is, the fixing member (80) is fitted in close contact (forcefully) with one side (82a) and the other side (82b) respectively to the inner wall facing each other between the side plate (SP) and the lateral pressure fastener (70).

[0028] Accordingly, even if the connection of the horizontal connecting member (60) is excluded after the prior connection of the lateral pressure connecting member (70), it is fixed at a desired fixed position to prevent detachment or movement, thereby allowing the horizontal connecting member (60) to be smoothly connected after moving to the site and after the placement of reinforcing bars (150) or additional work.

[0029] Referring to FIG. 4, as in (a), left and right protrusions (84) are formed on the left and right ends of the other side (82b) of the fixing member (80) so that they can be stably fitted into the gap (5), and at the same time, when fitting is completed, they interact with the lateral pressure binding member (70) to prevent detachment through mutual cooperation, thereby maintaining a stable fitted state.

[0030] Alternatively, as in (b)(c), a central protrusion (88) corresponding to the central groove (78) of the lateral pressure fastener (70) is formed in the central part of the other side (82b) of the fixed member (80), so that it is also stably fitted into the gap (5), and at the same time, when fitting is completed, it interacts with the lateral pressure fastener (70) to prevent detachment through mutual cooperation, thereby maintaining a stable fitted state.

[0031] Meanwhile, the fixing member (80) of the present invention can be applied in the same way to a lateral pressure binding member (70A) according to another embodiment as shown in FIG. 5.

[0032] That is, referring to the drawing, the lateral pressure fastener (70A) is formed integrally with a downward protrusion (76) extending downward on the inner side of the through hole (74) so ​​as to be in close contact with the inner surface of the vertical connecting ring (16a) formed on the side plate (SP). In addition, a horizontal slit fitting groove (72A) is formed on the inner wall of the downward protrusion (76) so as to be fitted in the “→” or “←” direction to the horizontal protrusion (19) extending inward from the upper end of the connecting ring (16a).

[0033] A fixing member (80) is fitted into the gap (5) formed accordingly, and one side (82a) and the other side (82b) of the fixing member (80) are respectively in close contact with the inner wall facing each other between the side plate (SP) and the lateral pressure fastener (70A), so that even if the connection of the horizontal connecting member (60) is excluded after the prior connection of the lateral pressure fastener (70A), it is fixed in a desired fixed position, preventing detachment or movement of position.

[0035] FIG. 7 is a photograph showing the experimental results of applying a load to the upper part of the side plate (SP). The load applied to the side plate (SP) is supported by the vertical bar (40b) of the U-stub (40). When an excessive load is applied, as can be seen in the drawing, it was confirmed that the end (42) of the horizontal bar (40a) connected to the lower part of the vertical bar (40b) sags downward due to the downward pressure of the vertical bar (40b).

[0036] In addition, an important fact here is that, starting with the downward bending of this end portion (42), the vertical bar (40b) bends in a chain reaction, and consequently, the side plate (SP) bends outward, causing a bulging phenomenon.

[0037] Accordingly, in the present invention, as shown in FIG. 6 (Figs. 6a to 6c), a U-stirrup (40) is fixed within a space (8) formed by a lower plate (DP) and left and right side plates (SP), and the left and right ends of the horizontal bar body (40a) of the U-stirrup (40) are connected via a stirrup fixing member (90). Then, the fixing member (80) described above is fitted tightly into the gap (5a) formed between the stirrup fixing member (90) and the lower plate (DP) to support the left and right ends (42) of the horizontal bar body (40a) of the U-stirrup (40).

[0038] By this configuration, the downward bending of the left and right ends (42) of the horizontal bar body (40a) of the U-stub (40), which substantially supports the load applied to the side plate (SP), is prevented, thereby improving the supporting force, and based on this, the bulging phenomenon of the side plate (SP) is ultimately prevented.

[0040] Referring further to FIG. 6 (Fig. 6a to FIG. 6c), in the present invention, a U-stirrup (40) is fixed within a space (8) formed by a lower plate (DP) and left and right side plates (SP), and the left and right ends of the horizontal bar body (40a) of the U-stirrup (40) are connected via a stirrup fixing device (90).

[0041] Then, in the gap (5b) formed between the stirrup fixing member (90) and the side plate (SP), the side reinforcing plate (F) is positioned, and the fixing member (80) described above is fitted in close contact to improve the support force against the load applied to the side plate (SP).

[0042] Also, referring to FIG. 6 (Fig. 6a to FIG. 6c), side plates (SP) are configured to stand upright at the left and right ends of the bottom plate (DP) to form a concrete pouring space (8) on the inside, and lateral pressure fasteners (70) (70A) are attached to the left and right side plates (SP) at the necessary positions of the connecting ring (16) or horizontal protrusion (19) of the side plates (SP).

[0043] In that state, a side reinforcing plate (F) is positioned in the gap (5c) formed between the side pressure binding member (70)(70A) and the side plate (SP), and the fixing member (80) described above is fitted in close contact to improve the load supporting force applied to the side plate (SP). The side reinforcing plate (F) is composed of beads (14) that extend orthogonally at each end of the flat wall (12) and connecting rings (16) that are bent and extended from the ends of both beads (14). The side reinforcing plate (F) having the above configuration is cut to match the height (h) of the connecting medium plate (B) or unit extension plate (C) constituting the side plate (SP) and fitted in an upright vertical position, and the load supporting force applied to the side plate (SP) is improved by fitting the fixing member (80) in close contact in that state.

[0044] Meanwhile, referring to FIG. 4, a horizontal connecting member (60) is connected between the left and right side plates (SP) through a lateral pressure connecting member (70), and a curved groove (75) is formed on the inner upper side between the left and right pair of lateral pressure connecting members (70) so that the bent portions (62) at both ends of the horizontal connecting member (60) are fitted and seated, thereby preventing the horizontal connecting member (60) from shaking and improving the stability of the connection.

[0046] Although the fixing member (80) of the lateral pressure binding device for beam construction formwork has been described above, the fixing member (80) can be used not only for beam construction formwork (2) but also for wall and column construction.

[0047] Although specific embodiments have been described in the foregoing description of the present invention, various modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should not be determined by the described embodiments but by the claims and equivalents thereof. Explanation of the symbols

[0048] (2)--Formwork for beam construction (5)(5a)(5b)(5c)--Separation section (8)--Concrete pouring space section (DP)--Bottom plate (SP)--Side plate (A)--Corner board (B)--Connecting media board (C)--Unit extension plate (F)--Side reinforcement plate (11)--L-shaped wall (12)--wall (14)--Bead (16)(16a)--Connecting ring (18)--bend section (19)--horizontal protrusion (40)--U strub (40a)--horizontal bar (40b)--vertical bar (42)--end of horizontal bar (40a) (50)--fixing clip (60)--Horizontal connecting member (62)--Bend ends (70)(70A)--Side pressure fastener (71)--Main body (72)(72A)--Slit insertion groove (74)--Through hole (75)--Curved groove (76)--Downward projection (78)--Central Home (80)--Fixing member of the lateral pressure fastener (82a)--one side (82b)--other side (84)--Left and right protrusions (88)--Central protrusion (90)--Strub fixing (92)--Slit insertion groove (94)--connecting groove

Claims

Claim 1 A fixing member (80) is fitted into a gap (5) formed by connecting a lateral pressure fastener (70)(70A) for connecting a horizontal connecting member (60) between left and right side plates (SP) constituting a formwork for beam construction to a connecting ring (16) or horizontal protrusion (19) of the side plate (SP), wherein one side (82a) and the other side (82b) of the fixing member (80) are respectively in close contact with the inner wall facing each other between the side plate (SP) and the lateral pressure fastener (70)(70A), so that even if the connection of the horizontal connecting member (60) is excluded after the prior connection of the lateral pressure fastener (70)(70A), it is fixed in a desired fixed position to prevent detachment or movement, thereby allowing the horizontal connecting member (60) to be smoothly connected after moving to the site, or after the placement of reinforcing bars (150) or additional work, and the side of the lateral pressure fastener (70)(70A) that is in close contact A fixing member of a lateral pressure fastener for a beam construction formwork, characterized by forming one or more of the following: forming left and right protrusions (84) on the left and right ends of the other side (82b) to ensure stable insertion into the gap (5) and, at the same time, interacting with the lateral pressure fastener (70)(70A) upon completion of insertion to prevent detachment by combining with each other, thereby maintaining a stable insertion state; or forming a central protrusion (88) corresponding to the central groove (78) of the lateral pressure fastener (70)(70A) on the central part of the other side (82b) to ensure stable insertion into the gap (5) and, at the same time, interacting with the lateral pressure fastener (70)(70A) upon completion of insertion to prevent detachment by combining with each other, thereby maintaining a stable insertion state. Claim 2 delete Claim 3 A formwork structure for beam construction characterized by forming a concrete pouring space (8) on the inner side by configuring side plates (SP) upright at the left and right ends of a bottom plate (DP), fixing a U-stirrup (40) within the space (8), connecting the left and right ends of the horizontal bar body (40a) of the U-stirrup (40) via a stirrup fixing device (90), and fitting a fixing member (80) defined in claim 1 into the gap (5a) formed between the stirrup fixing device (90) and the bottom plate (DP) in close contact to support the left and right ends (42) of the horizontal bar body (40a) of the U-stirrup (40), thereby preventing downward bending of the left and right ends (42) of the horizontal bar body (40a) of the U-stirrup (40) that substantially support the load applied to the side plate (SP), thereby improving the supporting force and ultimately preventing the bulging phenomenon of the side plate (SP) based on this. Claim 4 A formwork structure for beam construction according to claim 3, wherein the vertical bar body (40b) of the U-stub (40) is connected via a stirrup fixing member (90), and a side reinforcing plate (F) is positioned in the gap (5b) formed between the stirrup fixing member (90) and the side plate (SP), and the fixing member (80) defined in claim 1 is fitted in close contact to improve the support force against the load applied to the side plate (SP). Claim 5 Side plates (SP) are configured upright at the left and right ends of the bottom plate (DP) to form a concrete pouring space (8) on the inside, and lateral pressure fasteners (70) (70A) are attached to the left and right side plates (SP) at the necessary positions of the connecting hooks (16) or horizontal protrusions (19) of the side plates (SP). A side reinforcement plate (F) is positioned in the gap (5c) formed between the lateral pressure fasteners (70) (70A) and the side plates (SP). The side reinforcement plate (F) is configured with beads (14) that extend perpendicularly at each of the two ends of the flat wall (12), and connecting hooks (16) that are bent and extended from the ends of both beads (14). The side reinforcement plate (F) having the above configuration is cut to match the height (h) of the connecting medium plate (B) or unit extension plate (C) constituting the side plate (SP) and fitted in an upright vertical position. A formwork structure for beam construction characterized by improving the load-bearing capacity applied to the side plate (SP) by fitting a fixing member (80) defined in claim 1 into that state. Claim 6 A formwork structure for beam construction, characterized in that, in any one of claims 3 to 5, a horizontal connecting member (60) is connected between left and right side plates (SP) through a lateral pressure connecting member (70), and a curved groove (75) is formed on the inner upper side between a pair of left and right lateral pressure connecting members (70) so that the bent portions (62) of both ends of the horizontal connecting member (60) are fitted and seated to prevent shaking of the horizontal connecting member (60) and improve the stability of the connection.

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