JPH09137535A - Form for placing concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the length or the height of a form for placing concrete according to the size of a concrete structure, dispense with removal of it after hardening of placed concrete, and enable wire netting and the like for protecting mortar to be nailed on the surface of the concrete structure. SOLUTION: This formwork for placing concrete is constituted of square plate-like form panels 11 made of foaming polystyrene, supporting members 21 made of hard synthetic resin in which separator receivers 23 of shelf plate shape are projectingly provided in the lengthwise direction from the one side of panel connecting parts 22 of H-section, and the separator receiver 23 is provided with a plurality of pin holes 24, and a separator 31 having connecting pins 33 on both end parts of a crossbeam part of fixed length. The form panels 11 fitted with the recessed groove parts on the undersides of the supporting members 21 on the upper end faces are standingly provided spacedly by a specified distance so as to be right and left in opposite to each other, the separator receivers 23 are projected inside the form panels 11, and the connecting pins 33 of the separator 31 are inserted into the pin holes 24 of the separator receivers 23 opposite to each other, so as to connect together the right and left form panels 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete pouring formwork, and more particularly, it is easy to form the formwork and does not require removal of the formwork after the concrete is hardened. The present invention relates to a concrete pouring formwork that provides a structure excellent in heat insulation and sound insulation.

[0002]

2. Description of the Related Art Conventionally, a mold of this type has been made of a wooden panel or a metal plate, and was removed after the placed concrete was hardened. Further, in recent years, expanded polystyrene is used as a formwork panel, which is opposed to it at a predetermined interval and is previously integrated with a separator, or a formwork is formed by connecting the panels using a separator, and after concrete hardening. A method that does not remove the formwork has been proposed or implemented.

[0003]

However, according to the former removal type formwork, there is a drawback that the amount of work is increased due to the removal of the formwork after hardening of concrete and the construction cost is increased. Further, there is a drawback in that the work for raising or extending the formwork according to the size of the concrete structure is complicated. Also, among the latter non-removable formwork, in the method of using a formwork in which panels are assembled with a separator in advance, a vast space or space is occupied for storage and transportation,
Not only is the storage and transportation efficiency extremely poor, but it is also difficult to handle because of its bulkiness.
On the other hand, the method of connecting the panels with the separator to form the formwork does not have the problems of the above-mentioned assembly type, but the work is complicated, the strength and dimensional accuracy are insufficient, and There is a problem that the pressure cannot be sufficiently withstood, the dimensions are changed due to the pressure, and that nailing cannot be performed when lathing. The present invention aims to improve the conventional formwork and eliminate such problems.

[0004]

In order to achieve the above object, a concrete pouring formwork of the present invention comprises a rectangular plate-like foam polystyrene formwork panel and a panel connecting portion having an H-shaped cross section. A hard synthetic resin support member having a shelf-like separator receiver protruding in the longitudinal direction on one side, and a plurality of pin holes or connecting pins provided in the separator receiver, and both ends of a horizontal beam portion having a predetermined length. And a separator having a connecting pin or a pin hole provided in the portion, and the lower groove of the supporting member is fitted to the upper end surface of the form panel so as to face each other at a predetermined interval. And the separator receiver is projected inside the formwork panel, and the pin holes or connection pins of the separator receiver facing the connecting pins or pin holes of the separator are inserted into the left and right formwork panels. It is the concatenation of the.

The separator is integrally formed in a Z shape or an X shape and has four connecting pins or pin holes at each end, or a plurality of connecting pins on opposite long sides of the rectangular frame. Alternatively, it is preferable to provide a pin hole. This rectangular frame has at least 1 between its opposite long sides.
It is preferable to provide the individual reinforcing members in a ladder shape.

Further, a frame-shaped supporting member formed by integrally molding a plurality of reinforcing members in a ladder shape may be provided between the panel connecting portions of the pair of left and right supporting members, and the separator may be omitted. Further, a nailing base member made of a hard synthetic resin, which is integrally formed with an anchor portion on the back surface of the plate-shaped nailing portion, may be appropriately fixed to the outside of the formwork panel.

[0007]

In the formwork of the present invention, the separator or the frame-shaped support member is removed, and the left and right formwork panels are separately stored and transported. Therefore, the space required for storage and transportation can be small. At the construction site, the left and right formwork panels are erected by connecting them with separators or frame-shaped support members, and in order to correspond to the size of the concrete structure, a support member or frame-shaped support provided on the upper end surface of the formwork panel. The lower end of another form panel is pushed into the groove on the upper side of the panel connection part of the member to stack the forms in multiple stages to raise them to a predetermined height, and in the same manner as this, the front end face of the form panel Alternatively, an H-shaped connecting member having an H-shaped cross-sectional shape is attached to the rear end face, and a plurality of molds are connected in the front-rear direction via the concave groove portion of the member and extended to a predetermined length. Next, after reinforcing bars are laid between the left and right formwork panels, concrete is placed. After the concrete is hardened, it is not necessary to remove the formwork and it is used as it is as part of the concrete structure.

When applying the mortar to the surface of the concrete structure thus formed, the mortar reinforcing wire net (lath) is nailed to the supporting member and / or the nailing portion of the nailing base member fixed to the surface of the formwork panel. It may be fixed and stretched on the surface of the form panel, and mortar may be applied from above the wire mesh.

Then, a separator integrally formed in a Z-shape or an X-shape is used, and its connecting pin or pin hole is inserted into the pin hole or connecting pin of two pairs of separator receivers facing each other, and the left and right molds are inserted. By connecting the panels, the left and right formwork panels are prevented from being displaced from each other in the front-rear direction before concrete is hardened, and the formwork dimensions are stabilized. Also, when a separator having a plurality of connecting pins or pin holes on opposite long sides of the rectangular frame is used, the plurality of connecting pins or pin holes and the pin holes or connecting pins of the separator receiver can be inserted all at once. Therefore, the mold can be formed easily, and the rigidity of the rectangular frame is higher than that of the Z-shaped or X-shaped separator, so that the mold is more stable.

Further, when the frame-shaped support member is used and the separator is omitted, the work of inserting the connection pin or the pin hole into the pin hole or the connection pin of the separator receiver becomes unnecessary, so that the formation of the mold is much easier. In addition, since the overall rigidity is greater than that of the rectangular frame body, the stability of the frame is further increased.

[0011]

Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to these embodiments.

Embodiment 1 FIGS. 1 to 3 are respectively a front view, a plan view and a side view showing a unit unit of a mold of the present invention, and FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

In these figures, 1 is a mold,
Formwork panel 11, support member 21, and separator 31
It is composed of The formwork panel 11 is a square panel made of expanded polystyrene, and a plurality of nailing base members 12 are integrally molded or adhered on the outside of the formwork panel 11 so that they are vertically fixed at predetermined intervals. There is. The nailing base member 12 is made of a hard synthetic resin, and as shown in FIG. 5, an anchor portion 14 is formed in a T-shape so as to protrude from the back surface of a rectangular plate-shaped nailing portion 13.

The support member 21 is an injection-molded body made of a hard synthetic resin, and as shown in FIG. 6, a shelf-like separator receiver 23 is longitudinally provided on one side surface of a panel connecting portion 22 having an H-shaped cross section. And a plurality of pin holes 24 are provided in the separator receiver 23. The hard synthetic resin as a material is not particularly limited, but polyolefins such as polypropylene, vinyl chloride resins, polystyrene resins, ABS resins and the like are suitable.

As another embodiment of the support member 21, a frame-shaped support member 25 as shown in FIG. 7 is used, and a separator 31, a Z-shaped separator 34, and an X-shaped separator, which will be described later, are used.
Character-shaped separator 35 or frame-shaped separators 37, 39
May be omitted. As shown in the figure, the frame-shaped supporting member 25 is formed by integrally molding a plurality of reinforcing members 26 in a ladder shape between the panel connecting portions 22 of the pair of left and right supporting members 21. Same as 21.

The separator 31 is made of the same hard synthetic resin or metal as the supporting member 21, and as shown in FIG.
Two connecting pins 33 are projectingly provided at both ends of the strip-shaped horizontal beam portion 32.

In order to form a unit unit of the formwork 1 by the formwork panel 11, the support member 21 and the separator 31, as shown in FIG. 4, a panel connection of the support member 21 is made on the upper end surface of the formwork panel 11. The concave groove portions on the lower side of the portion 22 are fitted upright so as to be opposed to each other at predetermined intervals, and the connection pins 33 of the separator 31 are fitted in the pin holes 24 of the separator receiver 23 of the opposing support member 21. It suffices to insert and connect the left and right formwork panels 11.

At this time, when the left and right formwork panels 11 may be displaced from each other in the front-rear direction, the separators 31
The central portion of the above may be connected by a single connecting rod, or the connecting pin 33 of the separator 31 and the pin hole 24 of the separator receiver 23 may have a rectangular cross-sectional shape (not shown). If the left and right formwork panels 11 may still be displaced from each other in the front-rear direction, the lateral beam portion 32 of the separator 31 is integrally formed into a Z-shape or an X-shape as shown in FIG. 9 or 10. Separator 34 or 35
Four connecting pins 33 may be provided at each end of each of the two, and these connecting pins 33 may be inserted into two pairs of pin holes 24 of the separator receiver 23 facing each other to connect the left and right formwork panels 11. .

In order to further strengthen the connection of the form panel 11, a frame-shaped separator 37 having a plurality of connecting pins 33 on opposite long sides of a rectangular frame 36 as shown in FIG. The frame-shaped separator 37 as shown in 12
Using a frame-shaped separator 39 in which at least one reinforcing member 38 is provided in a ladder shape between opposed long sides of the rectangular frame 36, or the frame-shaped support member 25 described above as shown in FIG. It is sufficient to connect the formwork panels 11 of. Since the frame-shaped separators 37, 39 and the frame-shaped support member 25 have high rigidity, the connection of the mold panel 11 is further strengthened.

Further, according to the frame-shaped separators 37 and 39, the plurality of connecting pins 33 can be inserted into the pin holes 24 of the separator receiver 23 all at once, and the frame-shaped separators as shown in FIG. According to the support member 25, since there is no work to insert the connection pin 33 into the pinhole 24, the mold 1
Formation is even easier.

In order to construct a concrete structure using the formwork 1 of the unit unit having the above-mentioned structure,
As shown in 4, it is necessary to construct the entire formwork corresponding to the size of the concrete structure. First, the required number of anchor bolts 42 are planted in right and left 2 rows at predetermined positions of the concrete foundation 41, and formwork mounting members 43 as shown in FIG. Lay the specified length. The formwork mounting member 43 includes a plate-shaped fixing portion 45 protruding from the side surface of the concave groove portion 44.
A plurality of anchor bolt holes 46 are provided in the anchor bolt hole 46, and the anchor bolt 42 is inserted into the anchor bolt hole 46 and fixed by the nut 47.

Subsequently, the concave groove portion 4 of the formwork mounting member 43.
4, the lower end portions of the formwork panels 11 of the predetermined number of formwork 1 are pushed to set up the formwork 1, and the front and rear ends of the adjacent formwork panels 11 are formed into an H shape as shown in FIG. The connecting members 48 are connected to each other via the concave groove portions 49, and the mold 1 is extended to a predetermined length.

Further, the lower end of the form panel 11 of another form 1 is pushed into the groove above the panel connecting part 22 of the supporting member 21 fitted to the upper end surface of the form frame panel 11 connected to each other to form the form. 1 is piled up in a plurality of stages to a predetermined height, and form panel panels 11 adjacent to each other in the front and rear are connected via an H-shaped connecting member 48 in the same manner as the connection.

It is to be noted that the uppermost surface of the uppermost mold panel 11 is capped with a recessed groove portion 51 of a protective member 50 as shown in FIG. 17, and a plurality of pin holes 53 are provided in a separator receiver 52 thereof. Insert the connecting pin 33 of the separator 31,
The uppermost parts of the left and right formwork panels 11 are connected. This completes the construction of the entire formwork.

In this case, each end of the mold panel 11 is provided with a concave groove portion of the panel connecting portion 22 of the support member 21, a concave groove portion 44 of the mold mounting member 43, and a concave groove portion 49 of the H-shaped connecting member 48.
It is also possible to adhere the concave groove portion 51 of the protection member 50 with an adhesive. As a result, the entire form is strengthened and further stabilized.

Next, concrete is placed by arranging reinforcing bars inside the formwork 1. After hardening of concrete, formwork 1
Will be used as-is as part of the concrete structure without removal. Although FIG. 13 shows an example in which the ends of the formwork 1 are aligned, the strength of the joint can be increased by forming a zigzag shape in which only half the width is laterally shifted and stacked.

When mortar is applied to the surface of the concrete structure thus constructed, a mortar reinforcing wire mesh is provided on the surface of the support member 21 and / or the nailing base member 1.
It may be fixed by tensioning to the nailing portion 13 of No. 2 and stretched, and mortar may be applied on the wire mesh.

In the above embodiment, an example in which a pin hole is provided in the separator receiver and a connecting pin is provided in the separator has been shown. However, conversely, if a connecting pin and a pin hole are provided in the separator receiver, the same is true. . Further, the Z-shaped separator shown in FIG. 9 and the X-shaped separator shown in FIG. 10 are applied to, for example, the adjacent separators 31 shown in FIG. 2 to prevent the form 1 from shifting and wobbling. It can also be used as a fixing means.

Embodiment 2 In this embodiment, as shown in FIG. 18, in Embodiment 1 shown in FIG. 4, a convex portion 22a is provided in a portion of the supporting member 21 for holding the H-shaped mold panel 11, and Frame panel 11
Is provided with a concave portion 11a that fits with the convex portion 22a, and the support member 21 is press-fitted into the formwork panel 11 to fit the convex portion 22a and the concave portion 11a, while the separator 31 is
A connecting pin 33a having a V-shaped crack is provided, and the connecting pin 33a is press-fitted into the pin hole 24 of the separator receiver 23 with the V-shaped crack closed, so that the separator 31 is accidentally detached from the separator receiver 23. It is configured not to.

Example 3 In this example, as shown in FIG. 19, the pin hole of the separator receiver and the connecting pin 33 of the separator 31 in the above Example 1 were circular, and both ends of the separator 31 were arcuate. When storing or transporting, the opposite molds are shifted in the length direction to reduce the space. When such a mold is used, the displaced mold may be returned to the original state as shown in FIG. 2 and fixed by the connecting rod, the Z-shaped separator or the X-shaped separator described above.

In the formwork of the present invention, if necessary, braces may be provided between the opposing formwork, and when the stacked formwork may float during concrete pouring, for example, tighten the separator. It can also be fixed. Furthermore, it is also possible to provide a reinforcing bar supporting portion on the separator or the separator receiver to facilitate the reinforcing bar work.

[0032]

As described above, according to the present invention, since the form panel is made of expanded polystyrene, it is not necessary to remove the form even after the cast concrete is hardened, and the form is used as a concrete structure. It can be used as is as a department. Therefore, the labor and cost required for removing the formwork are unnecessary, so not only is it possible to save a great deal of labor, but it is also excellent in heat insulation, cold resistance, condensation resistance, sound insulation, sound absorption, impact resistance, etc. You can build concrete structures.

Further, the structure of the formwork is simple, and the support members or frame-shaped support members provided on the formwork panel can easily stack the formwork, so that the formwork can be easily constructed. The cost is low. Further, since the reinforcements can be arranged after the molds on one side are piled up, and the other side can be piled up after that, the molds can be easily piled up and arranged.

Further, since the formwork panel and the separator are separated, the space for storage and transportation is small, and the handling is easy. Further, even in the case of being integrated in advance, the above effect can be exhibited by adopting a slidable structure as shown in FIG.

Further, if a nailing base member made of a hard synthetic resin is fixed to the outside of the form panel, it is convenient because the nailing portion can be nailed from the outside together with the supporting member. For example, when it is necessary to apply mortar to the surface of a concrete structure, the mortar protective wire mesh is fixed not only on the surface of the supporting member but also together with or separately from the supporting member by tensioning with a nailing portion, Mortar may be applied over the wire mesh.

[Brief description of the drawings]

FIG. 1 is a front view of a formwork showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

FIG. 5 is a perspective view of a base member for nailing.

FIG. 6 is a perspective view of a support member.

FIG. 7 is a perspective view of a frame-shaped support member.

FIG. 8 is a perspective view of a separator.

FIG. 9 is a plan view of a Z-shaped separator.

FIG. 10 is a plan view of an X-shaped separator.

FIG. 11 is a plan view of a frame-shaped separator.

FIG. 12 is a plan view showing another embodiment of the frame-shaped separator.

FIG. 13 is a front view showing a construction state of the entire formwork.

14 is an enlarged sectional view taken along line XIV-XIV in FIG.

FIG. 15 is a perspective view of a formwork mounting member.

FIG. 16 is a perspective view of an H-shaped connecting member.

FIG. 17 is a perspective view of a protection member.

FIG. 18 is a sectional view showing another embodiment of the present invention.

FIG. 19 is a plan view showing still another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Formwork 11 Formwork panel 12 Base member for nailing 13 Nailing part 14 Anchor part 21 Supporting member 22 Panel connecting part 23 Separator receiving 24 Pin hole 31 Separator 32 Horizontal beam part 33 Connecting pin 34 Z-shaped separator 35 X-shaped separator 36 Square frame Body 37 Frame separator 38 Reinforcing member 39 Frame separator

Claims (7)

[Claims] 1. A rectangular plate-shaped foam polystyrene frame panel and a shelf-plate-shaped separator receiver projecting in the longitudinal direction on one side surface of a panel connecting portion having an H-shaped cross-section, and a plurality of separator receivers are provided in the separator receiver. A hard synthetic resin support member provided with individual pin holes or connection pins, and a separator provided with connection pins or pin holes at both ends of a horizontal beam portion of a predetermined length. The end face of which the lower groove portion of the supporting member is fitted is erected so as to be opposed to each other at a predetermined interval, and the separator receiver is projected inside the formwork panel to form a connecting pin for the separator. Alternatively, a concrete pouring formwork characterized in that the left and right formwork panels are connected by inserting a pin hole or a connecting pin of the separator receiver facing the pin hole. 2. The concrete pouring formwork according to claim 1, wherein the separator is integrally formed in a Z shape and has four connecting pins or pin holes at each end. 3. The concrete pouring formwork according to claim 1, wherein the separator is integrally molded in an X shape and has four connecting pins or pin holes at each end. 4. The concrete pouring formwork according to claim 1, wherein the separator is provided with a plurality of connecting pins on opposite long sides of the rectangular formwork body. 5. The concrete pouring formwork according to claim 4, wherein at least one reinforcing member is provided in a ladder shape between the opposing long sides of the rectangular formwork body. 6. The concrete placing according to claim 1, wherein a frame-shaped supporting member formed by integrally molding a plurality of reinforcing members in a ladder shape is provided between the panel connecting portions of the pair of left and right supporting members, and the separator is omitted. Formwork. 7. The concrete placing according to claim 1, wherein a nailing base member made of a hard synthetic resin, which is integrally formed with an anchor portion on the back surface of the plate-like nailing portion, is appropriately fixed to the outside of the formwork panel. Formwork.