JP2007255031A - Form structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a form structure which facilitates assembly of a form necessary for construction of a beam etc. of a building by placing concrete. <P>SOLUTION: The form structure is formed of: a horizontal form 8 consisting of a horizontal form plate 10 and a crosspiece 11 arranged on a lower side of a side surface of the horizontal form plate 10; a horizontal batter member 14 supporting the horizontal form 8 via the crosspiece 11; and a connection member 1 connecting between the horizontal batter 14 and the horizontal form 8. The connection member 1 has a horizontal portion 2 supporting the horizontal batter member 14; a pair of right and left vertical portions 5b, 5a rising from both edges of the horizontal member 2 to pinch the horizontal batter 14; and a horizontal insertion portion 3 extended from at least one upper edge of the vertical portions 5b, 5a and inserted into a gap between the horizontal form plate 10 and the crosspiece 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a formwork structure required when building beams and verandas of a building are constructed by placing concrete.

When building a beam or a veranda, a horizontal form forming the bottom of the beam or the floor of the veranda is used. This horizontal formwork is composed of a horizontal formwork plate and a pier attached to the lower side of the horizontal formwork plate. Supported. In this case, in order to determine the position of the horizontal butter material, a connecting member for connecting the horizontal butter material and the horizontal formwork is used in combination. As this connecting member, as described in Patent Document 1, it is fitted upward with respect to the horizontal butterfly material, and an upper extending portion that is nailed to the side surface of the horizontal frame is provided at the upper end of the connecting member. In the lower part, a shaft part fitted into the upper end of the supporting column is formed.
Design Registration No. 1101557

  In the formwork structure using the conventional connecting member as described above, it is indispensable to nail the connecting member with respect to the pier of the horizontal formwork, and there is a problem that it takes time to assemble.

  An object of the present invention is to provide a formwork structure that can solve the conventional problems as described above, and its means is indicated by reference numerals of embodiments to be described later. Horizontal molds 8 and 19 comprising frame plates 10 and 20 and piers 11 and 21 attached to the lower sides of the horizontal form plates 10 and 20, and the horizontal molds via the piers 11 and 21. 8. A formwork structure comprising horizontal buttering members 14 and 22 for supporting 8, 19 and a connecting member 1 for connecting the horizontal buttering members 14 and 22 to the horizontal formwork 8 and 19, wherein the connecting member 1 includes a horizontal portion 2 that supports the horizontal butter material 14, 22, a pair of left and right vertical portions 5a, 5b that rise from both ends of the horizontal portion 2 and sandwich the horizontal butter material 14, 22, and the vertical portion 5a. , 5b are connected from the upper end of at least one of the horizontal Is configured to have a horizontal insertion portion 3 to be inserted between the frame plate 10, 20 and 桟木 11 and 21.

  In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the horizontal portion 2 of the connecting member 1 is formed from the lower ends of the pair of left and right vertical portions 5a and 5b. It can be connected horizontally in the direction opposite to the protruding direction. When the formwork structure according to the second aspect is used for beam construction, as described in the third aspect, a portion of the connecting member 1 adjacent to the pier 11 is formed between the pier 11 and the pier 11. The horizontal butterfly material 14 is fitted to the upper end of the support column 15 so as to be sandwiched between the vertical frame plate 12 attached to the outside, and the horizontal butterfly material 14 is placed at the lower position of the pier 11. The horizontal portion 2 of the connecting member 1 is sandwiched between the flange portion 15 a provided at the upper end of the support column 15 and the horizontal butter material 14. Can be configured.

  According to a fourth aspect of the present invention, the pair of left and right vertical portions 5 a and 5 b of the connecting member 1 are integrated with each other by the connecting portion 6 on the upper end side, and between the connecting portion 6 and the horizontal portion 2. Thus, the rectangular hole 4 through which the horizontal butterfly members 14 and 22 pass can be formed. In this case, as described in claim 5, the connecting member 1 bends the upper side of one rectangular plate to form the horizontal insertion portion 3 and folds the lower side of the rectangular plate. The horizontal portion 2 can be formed by bending, and the rectangular hole 4 through which the horizontal flap members 14 and 22 pass can be formed above the horizontal portion 2.

  In addition, as described in claim 6, at least a portion of the connecting member 1 adjacent to the crosspieces 11, 21 has reinforcing ribs 7 a to 7 c that protrude on the same side as the protruding direction of the horizontal insertion portion 3. Can be formed.

  In addition, when using the formwork structure of this invention for a veranda construction, the part adjacent to the said pier 21 of the said connection member 1 can be nailed to this pier 21 as described in Claim 7. it can.

  According to the formwork structure according to the present invention having the above-described configuration, the connecting member is inserted by inserting the horizontal insertion portion at the upper end of the connecting member between the horizontal formwork plate and the pier in the horizontal formwork by hitting with a hammer or the like. By attaching a horizontal butterfly material that supports the horizontal mold frame between a pair of left and right vertical parts of the connecting member that is attached to the horizontal formwork and protrudes downward from the crosspiece, the horizontal butterfly material is inserted into the horizontal part at the bottom of the connecting member. It can be connected to a horizontal formwork in a state where it is supported by. In the case of a formwork for beam construction, the lower end of the vertical formwork plate for forming the left and right side faces of the beam is attached to the left and right sides of the horizontal formwork. When assembling the beam formwork constructed in this way on the ground, as described above, the horizontal formwork material for support is integrated into the lower side of the left and right sides of the horizontal formwork via the connecting members, and this is lifted up to a predetermined position. In the configuration of the present invention, the connecting member that supports the horizontal butterfly is nailed to the pier of the horizontal formwork. There is no need to stop, and the work of assembling the horizontal butterfly material under the horizontal mold can be easily performed.

  In addition, according to the structure of Claim 2, since the horizontal part of a connection member does not protrude largely below from a horizontal butter material, it will adjoin to the lower side of the said horizontal butter material, Therefore The horizontal portion of the connecting member is less likely to get in the way when supported by support columns. In particular, when assembling the beam formwork with the horizontal butter material according to the present invention on the ground, even if the assembled beam formwork is placed on the ground in a normal orientation with the horizontal butter material down, the lower end of the connecting member, That is, there is no possibility that the horizontal part to be grounded will be bent or damaged by the load.

  According to the present invention, when the beam form frame provided with the horizontal flap material is configured according to the present invention, the connecting member is finally connected between the horizontal form frame and the vertical form plate. Since it is sandwiched, the connecting member is attached by inserting the horizontal insertion portion between the crosspiece and the horizontal frame plate, but there is no possibility that the connecting member will come off unexpectedly, and it can be used safely. In addition, it is a structure that uses a connecting member adjacent to the side of the pier, but the horizontal formwork (beam formwork) can be supported by the supporting struts at a position directly below the pier. Can be configured.

  Further, according to the configuration of the fourth aspect, compared to the structure in which the pair of left and right vertical portions of the connecting member are connected by the horizontal portion only at the lower end side, the strength of the connecting member, and thus the horizontal butter material Support strength can be increased. In this case, according to the configuration described in claim 5, the connecting member can be configured easily and inexpensively by bending and punching one rectangular plate.

  Further, according to the configuration of claim 6, even when the connecting member is formed of a thin plate, the reinforcing rib can provide the necessary bending strength. However, the reinforcing rib protrudes from the horizontal insertion portion. Since it protrudes on the same side as the direction, when this connecting member is attached by inserting the horizontal insertion part between the horizontal formwork and the horizontal formwork plate, the reinforcing rib comes into contact with the side face of the formwork, A gap corresponding to the height of the reinforcing rib is formed between the side surface of the pier and the connecting member. Therefore, when the connecting member is removed at the time of disassembling the formwork, an operation can be performed by inserting an appropriate tool such as a flathead screwdriver into the gap so that the connecting member is peeled off from the crosspiece, and the connecting member can be easily removed.

  The present invention can also be used when assembling the veranda formwork. In this case, the vertical form plate is disposed on the horizontal form plate in the horizontal form form. In this way, the connecting member cannot be sandwiched between the crosspiece and the vertical form plate, but according to the configuration of claim 7, the connecting member is nailed to the crosspiece, so that the connecting member comes off unexpectedly. Can be used safely.

  Hereinafter, a specific embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1A and 2, the connecting member 1 is composed of a single metal rectangular plate. A horizontal portion 2 formed by bending at right angles to one side, and a horizontal insertion portion 3 formed by bending the upper side of the rectangular plate at right angles to the other side (the side opposite to the horizontal portion 2). And a rectangular hole 4 provided between the horizontal portion 2 and the intermediate height position between the horizontal portion 2 and the horizontal insertion portion 3, and the rectangular hole 4 is formed by forming the rectangular hole 4. A pair of left and right vertical parts 5a and 5b sandwiched and a connecting part 6 that connects and integrates the vertical parts 5a and 5b above the rectangular hole 4 are formed. The connecting portion 6 is provided with vertical reinforcing ribs 7a to 7c at three positions in the left-right width direction. These reinforcing ribs 7 a to 7 c have a flat top surface that projects to the same side as the side from which the horizontal insertion portion 3 projects, and the projecting height is about the thickness of the rectangular plate that constitutes the connecting member 1. Yes, the reinforcing ribs 7a and 7c at the left and right ends extend to positions near the lower ends of the vertical portions 5a and 5b.

  FIG. 1B and FIG. 3 show one side portion of a beam mold configured using the connecting member 1 having the above-described configuration. The beam mold includes a horizontal mold 8 that forms a beam bottom surface and a beam side surface. The horizontal mold 8 is composed of a pair of left and right vertical molds 9 to be formed. The horizontal mold 8 nails a sill 11 having a prescribed size (for example, 30 mm × 60 mm) below at least the left and right sides of the horizontal mold plate 10. The vertical frame 9 is fixed by a stopper or the like, and the vertical frame 9 has a prescribed size (for example, 30 mm × 60 mm) outside at least the upper and lower sides of the vertical frame plate 12 fixed to the outside of the pier 11 by a nail clamp or the like. The pier 13 is fixed by nail fastening or the like. And this beam formwork is arranged on the floor surface via a horizontal butterfly material 14 (for example, a 60 mm square steel pipe butterfly material) 14 that is arranged in the horizontal direction on the lower side of the horizontal formwork 8 and supports the horizontal formwork 8. It is supported at a predetermined height by a supporting column 15 arranged perpendicularly. At this time, a horizontal butter material (for example, a 60 mm square steel pipe butter material) 16 having the same height as the pier 11 is disposed in parallel with the pier 11 between the horizontal butterfly 14 and the horizontal form plate 10 as necessary. . As is well known in the art, a butterfly material support fitting 17 is used together to support the horizontal butterfly material 14 by the support columns 15.

  The procedure for assembling the connecting member 1 into the beam form having the above configuration will be described. First, as shown in FIG. 4, before assembling the vertical form 9 to the horizontal form 8, a plurality of locations in the length direction of the horizontal form 8 are provided. In (a plurality of places where the horizontal flap material 14 is arranged), the horizontal insertion portion of the connecting member 1 between the horizontal frame plate 10 on the left side of the left and right sides of the horizontal mold plate 10 in the horizontal mold frame 8 and the horizontal mold plate 10. 3 is inserted by an appropriate method such as tapping with a hammer from the outside, and the connecting member 1 is attached to the horizontal frame 8 so that the connecting portion 6 (the protruding top surface of the reinforcing ribs 7a to 7c) abuts the outer surface of the pier 11. Install on the left and right sides. At this time, the rectangular hole 4 of the connecting member 1 is positioned so that the upper side of the rectangular hole 4 is slightly above the lower surface of the pier 11 and the horizontal butter material (for example, (60 mm square steel pipe butter material) 14 can be inserted without difficulty. Further, the lower side of the rectangular hole 4 is formed so as to slightly enter the horizontal portion 2 so that the horizontal butter material 14 inserted through the rectangular hole 4 can be completely placed on the upper surface of the horizontal portion 2.

  If the pair of left and right connecting members 1 is attached to the horizontal formwork 8 where the horizontal flap material 14 is disposed, the connecting portion 6 of the connecting member 1 is perpendicular to the pier 11 of the horizontal formwork 8 as shown in FIG. The vertical mold 9 is assembled to the left and right sides of the horizontal mold 8 while being sandwiched between the vertical mold plate 12 of the mold 9 and the beam mold is completed. Thus, the connecting member 1 is in a state in which the pair of left and right vertical portions 5a, 5b and the horizontal portion 2 protrude from between the crosspiece 11 of the horizontal formwork 8 and the vertical formwork plate 12 of the vertical formwork 9 (rectangular holes). 4 is projected).

  When the beam formwork is assembled by incorporating the connecting member 1 as described above, as shown in FIG. 6, a plurality of horizontal flaps 14 that are appropriately longer than the left and right widths of the horizontal formwork 8 are provided. The horizontal formwork is inserted between the rectangular holes 4 of the pair of left and right connecting members 1 at the material arrangement location, and between the horizontal butterfly material 14 and the horizontal formwork plate 10 of the horizontal formwork 8 as necessary. In a state where the horizontal butter material 16 is inserted along the length direction 8, the beam form frame is lifted and conveyed to a predetermined position, and coupled to a wall form frame or a slab form frame adjacent to the beam form frame. When the beam form is lifted and transported, each horizontal butterfly 14 is supported by the pair of left and right connecting members 1 and is slightly lowered from the crosspiece 11 of the horizontal formwork 8, the vertical formplate 12 and the crosspiece 13 of the vertical formwork 9. In this state, it is lifted and conveyed integrally with the beam formwork. The horizontal butter material 16 is supported by a plurality of horizontal butter materials 14 and is lifted and conveyed integrally with the beam formwork.

  Thereafter, two portions near each of the left and right ends of each horizontal buttering material 14 are supported by the supporting columns 15, but the supporting columns 15 are not shown in the figure, but the lengths are divided into a plurality of stages as is conventionally known. A screw jack portion that can be adjusted and finely adjusted in length is provided in the middle, and a rectangular flange portion 15a having an opening communicating with the inside of the support column at the center is provided at the upper end. Thus, the upper end of the support column 15 whose overall length is adjusted to be slightly shorter than the lower side surface height of the horizontal butterfly member 14 in the beam form frame, using the central opening of the square flange 15a, The lower end shaft portion 17a of the material support bracket 17 is fitted, and the pair of left and right butter material sandwiching pieces 17b and 17c of the butter material support bracket 17 are externally fitted downward to the horizontal butter material 14 in the beam form frame from below. The supporting column 15 is erected vertically on the floor surface. Then, the screw jack portion is operated so as to extend the length of the support column 15, and as shown in FIGS. 1B and 3, a horizontal support member 17 (a pair of left and right butter material sandwiching pieces 17 b and 17 c) The butter material 14 is pushed up, the horizontal butter material 14 comes into contact with the lower surfaces of the pair of left and right piers 11 of the horizontal form frame 8, and the beam form frame is set in a state where the entire weight of the beam form frame is applied to the support column 15. Support at height. At this time, the horizontal butterfly 14 is slightly lifted with respect to the lower side of the rectangular hole 4 of the connecting member 1, that is, the horizontal portion 2.

  As described above, the beam form frame is supported by the supporting columns 15 that support the two positions in the vicinity of the left and right ends of each horizontal butterfly member 14, but as shown in FIGS. 1B and 3, the butterfly material support bracket 17 is supported. It is desirable to position each supporting column 15 so that is positioned directly below the crosspiece 11 below the left and right sides of the horizontal mold 8. By arranging the supporting columns 15 in this way, the beam form frame is stably supported by the supporting columns 15 and it is possible to prevent an excessive bending force from acting on the horizontal buttering material 14 when placing concrete. The supporting column 15 can be arranged in such a manner that the horizontal portion 2 of the connecting member 1 is bent on the opposite side of the horizontal insertion portion 3 and is close to the lower side surface of the horizontal butterfly member 14. It is to become. That is, even if the butterfly material support bracket 17 is positioned directly below the crosspiece 11 on the left and right sides of the horizontal mold 8 and the pair of left and right butterfly material sandwiching pieces 17b and 17c are adjacent to the inside of the connecting member 1, The horizontal portion 2 of the connecting member 1 and the butterfly material support metal fitting 17 do not interfere with each other, and at this time, the horizontal portion 2 of the connecting member 1 is connected to the upper end square flange portion 15a of the support column 15 and the horizontal butterfly material. 14, in other words, in the thickness region of the horizontal portion that supports the horizontal butterfly material 14 of the butterfly material sandwiching pieces 17 b and 17 c, the upper end square shape of the support column 15 This is because the flange portion 15a and the horizontal portion 2 of the connecting member 1 do not interfere with each other.

  As shown in FIG. 7, the connecting member 1 having the above configuration can be used for assembling a veranda formwork. That is, a horizontal mold 19 for forming the veranda slab is connected to the upper end of the wall mold 18 for forming the outer surface of the wall that supports the base of the veranda slab. The connecting member 1 is attached by inserting the horizontal insertion portion 3 of the connecting member 1 between the frame plate 20 and the crosspiece 21 attached to the lower side of the horizontal frame plate 20. Thus, the horizontal butterfly member 22 that supports the horizontal mold plate 20 is supported at the inner end by the butter receptacle 23 attached to the wall mold 18 and provided with the butterfly metal fitting 17 at the upper end. Although the outer end side is supported by the support column 15, the horizontal end member 22 is inserted into the connecting member 1 by inserting the outer end side of the horizontal end member 22, so that the direction of the horizontal butter member 22 and the connecting member 1 are changed. It can be decided by.

  The horizontal mold plate 20 of the horizontal mold frame 19 is provided with a vertical mold frame 24 for forming the outer surface of the veranda handrail wall in the vicinity of the outer side thereof. The vertical form 24 is attached to the horizontal form 19 by nailing or the like at a crosspiece 26 attached to the outside of the lower end of the vertical form plate 25. The butter receptacle 23 is a conventionally known one, and a mounting plate 28 is continuously provided vertically upward from a position in the vicinity of the inner end of the groove-shaped member 27 into which the inner end of the horizontal butter member 22 can be fitted from above. By attaching the attachment plate 28 to the vertical outer surface of the crosspiece 29 at the upper end of the wall mold 18 by nail or the like, the groove member 27 is horizontally arranged at a predetermined height. The inner end portion of the horizontal butterfly material 22 is fitted and supported by a groove-shaped member 27 outside the mounting plate 28.

  As described above, the connecting member 1 can be used for assembling the veranda formwork. In this state of use, the connecting member 1 is sandwiched between the crosspiece 21 and the vertical formwork plate 25 of the vertical formwork 24. Since it cannot attach, the part which contact | abuts the crosspiece 21 of the connection member 1 can be fixed to the crosspiece 21 by the nail 30 in order to ensure safety. Therefore, the connecting member 1 is desirably provided with a nail hole in a portion that contacts the crosspiece 21.

  The reinforcing ribs 7a to 7c provided on the connecting member 1 are not essential to the present invention, and the reinforcing ribs 7a to 7c are eliminated by appropriately increasing the thickness of the rectangular plate constituting the connecting member 1. be able to. Further, the horizontal insertion portion 3 can be bent and connected only at the center of the upper side of the connecting portion 6. Further, as shown in FIG. 8, the connecting portion 6 provided on the connecting member 1 is eliminated, and a pair of left and right vertical portions 5 a and 5 b each having a horizontal insertion portion 3 at the upper end are erected independently from the horizontal portion 2. You can also. According to this configuration, the insertion work of the horizontal insertion portion 3 can be easily performed without being obstructed by the nail that fastens the horizontal frame plates 10 and 20 and the piers 11 and 21. Of course, when the configuration shown in FIG. 8 is adopted, the entire configuration can be configured by bending a single wire instead of a plate material.

Fig. A is a perspective view of a connecting member, and Fig. B is a longitudinal front view showing a main part of a beam form frame assembled using the connecting member. FIG. 4A is a longitudinal sectional side view of the connecting member, and FIG. B is a transverse plan view of the connecting member. It is a left view of FIG. 1B. Fig. A is a longitudinal front view showing a horizontal mold frame to which a connecting member is attached, and Fig. B is a left side view thereof. It is a vertical front view which shows the state which attached the vertical formwork to the horizontal formwork of FIG. 4A. Fig. A is a longitudinal front view showing the upper end portion of the supporting column and the main part of the beam form frame immediately before being supported by the supporting column, and Fig. B is a left side view of the same. It is a partially notched longitudinal front view which shows the principal part of the veranda formwork assembled using the connection member. It is a perspective view which shows the modification of a connection member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connecting member 2 Horizontal part 3 Horizontal insertion part 4 Rectangular hole 5a, 5b A pair of right and left vertical parts 6 Connecting part 7a-7c Reinforcing ribs 8, 19 Horizontal formwork 9, 24 Vertical formwork 10,20 Horizontal formwork 11 , 13, 21, 26, 29 Crossing 12, 25 Vertical form plate 14, 16, 22 Horizontal butter 15 Support strut 15a Supporting support top end flange 17 Batter support bracket 18 Wall form 23 Batter material receptacle

Claims (7)

  A horizontal formwork composed of a horizontal formwork plate and a crosspiece attached to the lower side of the horizontal formwork board, a horizontal butter material for supporting the horizontal formwork via the crosspiece, and A formwork structure comprising a connecting member for connecting the horizontal formwork, the connecting member comprising a horizontal portion for supporting the horizontal butter material, and rising from both ends of the horizontal portion to A formwork structure having a pair of left and right vertical parts to be sandwiched and a horizontal insertion part that is connected from the upper end of at least one of the vertical parts and is inserted between the horizontal formwork plate and the pier.   2. The formwork structure according to claim 1, wherein the horizontal portion of the connecting member is connected horizontally from the lower ends of the pair of left and right vertical portions in a direction opposite to a protruding direction of the horizontal insertion portion.   A portion of the connecting member adjacent to the pier is sandwiched between the pier and a vertical form plate attached to the outer side of the pier, and the horizontal butter material is fitted to the upper end of the support column. The horizontal portion of the connecting member is supported between the horizontal butterfly material provided at the upper end of the support column and is supported by a butterfly material support fitting that is externally fitted to the horizontal butterfly material at the lower position of the pier. The formwork structure according to claim 2, sandwiched between the two.   The pair of left and right vertical portions of the connecting member are integrated with each other by a connecting portion on the upper end side, and a rectangular hole through which a horizontal butter material passes is formed between the connecting portion and the horizontal portion. The formwork structure of any one of 1-3.   The connecting member is formed by bending the upper side of one rectangular plate to form the horizontal insertion portion, and bending the lower side of the rectangular plate to form the horizontal portion. The formwork structure according to claim 4, wherein the rectangular hole through which a horizontal butter material passes is formed above the horizontal portion.   The formwork according to any one of claims 1 to 5, wherein a reinforcing rib that protrudes on the same side as a protruding direction of the horizontal insertion portion is formed on at least a portion of the connecting member adjacent to the crosspiece. Construction. The formwork structure according to any one of claims 1 to 6, wherein a portion of the connecting member adjacent to the pier is nailed to the pier.

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