JP2000160746A - Form panel for constructing wall face - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide form panels for constructing a wall surface which are prevented from cracking even if rainwater entering between each form panel for constructing the wall face and hardened concrete freezes. SOLUTION: Vertically open hooks are projected from predetermined vertical and horizontal positions of a back, and form panels are horizontally and upwardly erected and arranged by engaging the connecting members 12 of connecting fixtures with the hooks. The hook 3A is imparted with elasticity and elastically deformed to expand its overall length.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a connecting member of a connecting fixture for connecting a hook or a member to be connected which is opened in a vertical direction at predetermined positions on the rear surface in the vertical and horizontal directions. And to form wall panels for wall surface construction arranged vertically and horizontally by engaging with each other.

[0002]

2. Description of the Related Art The above-mentioned formwork panels for wall construction are made of concrete, air mortar [cement, aggregate (sand), water,
Slurry by foaming agent), filling one or both sides of an opposing formwork filled with filler such as earth and sand, gravel, etc., and known from Japanese Patent Publication No. 62-4496 proposed by the present applicant. It is.

FIG. 8 is a perspective view showing the above-mentioned conventional wall construction form panel, and FIG. 9 is a state in which the wall construction form panels shown in FIG. FIG. In FIG. 9, only one connecting fixture for connecting and fixing the upper and lower wall surface forming form panels is shown, and the other is omitted.

In FIG. 8 or FIG. 9, reference numeral 1 denotes a formwork panel for constructing a wall surface, and a horizontally long formwork panel body 2 having a predetermined size and a predetermined thickness; The two hooks 3 are provided with four hooks 3 projecting upward and downward from the left and right ends of the rear surface, each of which is inwardly moved by の of the horizontal width from the left and right ends, such as U-shaped and V-shaped.
The form panel body 2 is made of concrete. Each hook 3 is formed by projecting a part of two rebars embedded in the form panel body 2.

[0005] Reference numeral 11 denotes a connecting fixture, and a lower portion 12d.
Are fitted into the upper hooks 3 of the wall construction form panel 1 located on the lower side, and the upper part 12u is fitted into the lower hooks 3 of the wall construction form panel 1 located on the upper side. A connecting plate 12, a separator 13 having one end rotatably attached to the center of the connecting plate 12 in the vertical direction, and a fixing member for fixing the other end of the separator 13 to a large form plate 21. 14.

The above-mentioned fixing member 14 is formed of, for example, a P-cone, a nut, a foam tie, or the like. The form plate 21 is made of, for example, veneer plywood,
It is erected so as to be opposed to the wall surface forming form panels 1 arranged side by side. C indicates concrete, which is filled between the wall panel forming form panel 1 and the form plate 21.

Next, a case in which the retaining wall is constructed by arranging the formwork panels 1 for wall construction will be described. First, the upper half 12 of the connecting plate 12 is made to correspond to each of the lower hooks 3 in a state where the wall panels 1 are horizontally long and arranged sideways.
A base is cast by embedding a part of the semi-embedded fixing member protruding the same part as u. Then, after the form plate 21 is leaned over, the part protruding from the base of the semi-buried fixing member is fitted into each of the lower hooks 3 while slidingly contacting the back surface of the form panel body 2, thereby forming the first stage. Are arranged side by side.

Next, the lower portion 12d of the connecting plate 12 is brought into sliding contact with the back surface of the first-stage wall-building formwork panel 1,
The other end portions of the separators 13 are fitted into the respective hooks 3 on the upper side of the stepped wall construction form panel 1 and the fixing members 14 are attached thereto.
To fix it to the form plate 21. Then, the second-stage wall forming form panel 1 is shifted by に 対 し て of the horizontal width with respect to the first-stage wall forming form panel 1, and the upper portion 12 of the connecting plate 12 is shifted.
The u is slid into contact with the back surface of the second-stage wall-building form panel 1 and is fitted into each of the lower hooks 3 of the second-stage wall-form form panel 1, so that the second-stage wall-building form panel 1 is arranged side by side.

After the wall panels 1 are sequentially arranged in this manner, concrete C is filled between the wall panels 1 and the frame plate 21, and the vertically arranged wall panels are arranged. The panel 1 and the solidified concrete C are integrated. By constructing the retaining wall in this way, it is possible to form a retaining wall whose surface is decorated with the wall-form constructing form panels 1 arranged vertically.

When both sides of the formwork are constituted by the formwork panels 1 for wall construction, the formwork panels 1 for wall construction are arranged back to back and one formwork panel 1 for wall construction is connected vertically. A wall and a connecting plate on which the other wall-building formwork panels 1 are vertically arranged are connected by a separator, and the wall-side building form panels 1 on both sides are connected to each other by a connecting fixture, and the wall-forming formwork is arranged vertically. By filling concrete between the panels 1 and solidifying it, it is possible to form a retaining wall whose both sides are decorated with the wall forming form panels 1 arranged vertically.

[0011]

As described above, when a wall surface is constructed using the form wall panel 1 for wall construction, the poured concrete C is shrunk by solidification, as shown in FIG. Then, a gap G of about 0.3 mm to 1 mm is generated between the back surface of the wall panel 1 and the solidified concrete C. When rainwater or the like enters the gap G, in a cold region or the like, the rainwater or the like in the gap G freezes, so that the gap G is further increased by about 10%.

However, since the conventional hook 3 is thick and rigid, the rainwater or the like that has entered the gap G is repeatedly frozen and the frozen rainwater is repeatedly melted, as shown in FIG. When the crack R is generated in the formwork panel 1 or when the crack R progresses, a part or the whole of the wall form building form panel 1 may be peeled off.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned inconveniences. Even if rainwater or the like enters between the formwork panel for wall construction and the solidified concrete and freezes, the invention is intended for use in wall construction. An object of the present invention is to provide a formwork panel for building a wall surface in which cracks are not generated in the formwork panel.

[0014]

According to the present invention, a hook which is opened in the vertical direction is protrudingly provided at predetermined positions on the back, up, down, left and right. In the formwork panel for wall construction which is erected vertically, the hooks have elasticity, and the hooks are elastically deformed to extend the entire length. According to another aspect of the present invention, there is provided a wall construction method in which a device to be coupled is provided at predetermined positions on the back, up, down, left, and right, and a coupling member of a coupling fixture is engaged with the device to be coupled, so as to be vertically and horizontally arranged. In the form panel, an elastic resin layer is provided on the back surface.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are explanatory views of a wall construction state showing a wall construction form panel according to a first embodiment of the present invention, and FIG. 1A is a state of a hook before elastic deformation. FIG. 1B shows a state of the hook which has been elastically deformed. The same or corresponding portions as those in FIGS. 8 to 10 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 1, reference numeral 3A denotes an angular V-shaped hook having a bent portion to be elastically deformed, for example, two reinforcing bars embedded in the form panel body 2, for example, an elastic bar having a diameter of about 4 mm. A part of the deformable reinforcing bar is formed so as to project upward and downward from the left and right ends of the form panel body 2 by a quarter of the width to the inside on the rear surface.

FIG. 2 is an explanatory view showing a molding state of the wall panel forming form panel shown in FIG. In FIG. 2, reference numeral 31 denotes a forming mold for forming the wall panel forming form panel 1;
The two peripheral surfaces are expanded from below (front) to above (rear), and the upper surface is open. Reference numeral 32 denotes a positioning jig for positioning the position of the hook 3A.

Next, the molding of the wall panel forming form panel 1 of the first embodiment shown in FIG. 1 will be described. First, FIG.
As shown in (1), the positioning jig 32 is inserted into the vertical position of the forming mold frame 31 at a position shifted inward by 1/4 of the horizontal width from the left and right ends of the mold panel body 2, and
The rebar of the book is supported by the positioning jig 32 at the position of the hook 3A. Then, concrete is filled into the forming mold 31 and solidified, thereby forming the wall panel forming mold panel 1.
Can be molded. In addition, the method of constructing the retaining wall by arranging the formwork panels 1 for the wall surface construction of the first embodiment is the same as the conventional method, and the description is omitted.

Next, the operation of the hook 3A will be described. First, even when the retaining wall is constructed by arranging the formwork panels 1 of the first embodiment on the wall, the cast concrete C is shrunk by solidification, as shown in FIG. A gap G of about 0.3 mm to 1 mm between the back surface of the building form panel 1 and the solidified concrete C
Occurs. And rainwater or the like enters this gap G,
When the rainwater or the like in the gap G freezes, the gap G is further expanded by about 10%.

However, since the hook 3A is elastically deformable, the rainwater or the like that has entered the gap G freezes, and the hook 3A is turned off as shown in FIG.
As shown in FIG.
Since A expands the entire length by elastic deformation,
The stress caused by the freezing of rainwater or the like that has entered the gap G does not act on the wall-form building form panel 1, and the crack R does not occur on the wall-building form panel 1. When the frozen rainwater in the gap G is melted, the hook 3A is moved to the position shown in FIG.
As shown in (a), it is elastically deformed to the original state.

Therefore, even if rainwater or the like that has entered the gap G between the back surface of the wall panel forming form panel 1 and the solidified concrete C freezes and the frozen rainwater is repeatedly melted, the hook 3A is elastically deformed. As a result, stress caused by freezing of rainwater or the like that has entered the gap G does not act on the formwork panel 1 for wall construction, so that cracks R are not generated on the formwork panel 1 for wall construction, and There is no danger that a part or the whole of the form panel 1 will fall off, and the scenery decorated with the wall form building form panel 1 can be maintained.

FIG. 3 is an explanatory view showing another example of a reinforcing bar for forming a hook in the wall surface forming form panel of the first embodiment shown in FIG. In FIG. 3, X indicates a reinforcing bar, which has rigidity and has a reinforcing bar Y for passing in the lateral direction of the form panel body 2 and a hook 3 </ b> A, and has a width from the left and right ends of the form panel body 2. And an elastically deformable hook reinforcing steel Z fixed by welding or bundling to the position of the reinforcing steel Y approaching inward by 1/4 of the above.

By using the reinforcing bar X shown in FIG. 3, the wall surface forming form panel 1 can have rigidity and the hook 3A can have elasticity.

FIGS. 4 (a) and 4 (b) are explanatory views of a wall construction state showing a wall construction form panel according to a second embodiment of the present invention, and FIG. FIG. 4B shows a state where the elastic resin layer is compressed. The same or corresponding parts as those in FIGS. 1 and 2 and FIGS. 8 to 10 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 4, reference numeral 4 denotes an elastic resin layer provided on the entire back surface of the form panel body 2, and when the concrete is poured, dirt floating together with water, latencies, etc., are taken in, and the concrete is removed. Good adhesion, for example, styrene-butadiene rubber latex (SBR), acrylonitrile-butadiene rubber latex (NBR),
It is formed to a thickness of about 1 mm by polyacrylate disversion (PAE) or the like. Note that the hook 3 in the second embodiment is an example of a device to be coupled.

FIG. 5 is an explanatory view showing a molded state of the wall panel forming form panel shown in FIG. 4. In FIG. 5, the same or corresponding parts as those in FIG.

Next, the molding of the form wall panel 1 for building a wall according to the second embodiment shown in FIG. 4 will be described. First, FIG.
As shown in (1), the positioning jig 32 is inserted into the vertical position of the forming mold frame 31 at a position shifted inward by 1/4 of the horizontal width from the left and right ends of the mold panel body 2, and
The rebar of the book is supported by the positioning jig 32 at the position of the hook 3.

Then, the concrete is filled in the molding frame 31 and solidified, and at the same time, a resin is poured so as to cover the entire upper surface of the concrete (the entire rear surface of the frame panel body 2), and the elastic resin layer 4 is provided. Thereby, the formwork panel 1 for wall surface construction can be formed. The method for constructing the retaining wall by arranging the formwork panels 1 for wall surface construction of the second embodiment is the same as the conventional method, and therefore the description is omitted.

Next, the function of the elastic resin layer 4 will be described. First, even when the retaining wall is constructed by arranging the formwork panels 1 for the wall construction of the second embodiment, the poured concrete C shrinks with solidification. However, when the elastic resin layer 4 is compressed by the load at the time of placing the concrete C and the concrete C solidifies and contracts, the elastic resin layer 4 adheres to the concrete C and is restored by its own elastic force. As shown in FIG. 4A, no gap G is generated between the elastic resin layer 4 and the solidified concrete C.
Even if the gap G occurs, the gap G is very small.

However, even if rainwater or the like enters the minute gap G between the elastic resin layer 4 and the solidified concrete C and the rainwater or the like in the gap G freezes, as shown in FIG. When the elastic resin layer 4 is compressed, the stress caused by the freezing of rainwater or the like that has entered the gap G does not act on the wall-form construction form panel 1, and cracks R are formed on the wall-form construction form panel 1. No longer occurs. When the frozen rainwater in the gap G is melted, the elastic resin layer 4 becomes as shown in FIG.
Restore to the original state as shown in.

Accordingly, even if rainwater or the like that has entered the minute gap G between the back surface of the wall panel forming form panel 1 and the solidified concrete C freezes and the frozen rainwater is repeatedly melted, the elastic resin When the layer 4 is elastically deformed, the stress caused by the freezing of rainwater or the like that has entered the gap G does not act on the wall panel 1 and the crack R is generated on the wall panel 1. At the same time, there is no possibility that a part or the whole of the wall panel 1 will fall off, and the scenery decorated with the wall panel 1 can be maintained.

The elastic resin layer 4 provided on the back surface of the wall panel 1 has good adhesiveness to a sealing material for sealing between the wall panels 1, so that highly fluidized concrete or the like can be used. Even if it is provided, there is no need to worry about leakage of the highly fluidized concrete or the like from between the wall panels 1. Furthermore, since the elastic resin layer 4 is provided on the back surface of the wall panel 1, moisture such as cast concrete C flows through the capillary of the wall panel 1 to the surface of the wall panel 1. Because it does not penetrate, that is, the elastic resin layer 4 blocks the permeation of moisture to the surface of the wall-building formwork panel 1, so that the floating lime or the like precipitates on the surface of the wall-building formwork panel 1. Does not occur, and the surface of the wall panel forming form panel 1 is not stained, and the landscape is not damaged.

FIG. 6 is a perspective view showing a formwork panel for constructing a wall surface according to a third embodiment of the present invention. The same or corresponding parts as those in FIGS. 1 to 5 and FIGS. , The description of which is omitted. In FIG. 6, reference numeral 3B denotes an anchor bolt. The head side is buried in the form panel body 2, and the male screw portion is located above and below the back surface inward from the left and right ends of the form panel body 2 by 1/4 of the width. It is protruding.

Reference numeral 12A denotes an angle member constituting the connecting fixture 11, and a lower hole 12dh through which the male screw portion of the anchor bolt 3B located above the lower wall construction form panel 1 is inserted, and an upper wall surface. An upper hole 12uh through which the male screw portion of the anchor bolt 3B located on the lower side of the construction form panel 1 is inserted is provided on one side. One end of the separator 13 is rotatably attached to the center of the other side of the angle member 12A in the vertical direction.

Numeral 12B denotes a nut constituting the connecting fixture 11, which is screwed into a male thread portion of the anchor bolt 3B, and fixes the angle member 12A to the wall panel forming form panel 1. The above-mentioned angle member 12A and nut 12B constitute a connecting member for connecting and fixing the upper and lower wall surface forming form panels 1.

FIG. 7 is an explanatory view showing a molding state of the wall construction frame panel shown in FIG. 6. The same or corresponding parts as those in FIG. 2 or FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 7, 32A indicates a flat plate,
Through holes are provided at intervals of the holes 12dh and 12uh of the 2A, through which the male screw portions of the anchor bolts 3B are inserted.
Numeral 32B indicates a nut, which is screwed into a male screw portion of the anchor bolt 3B that penetrates the through hole of the flat plate 32A, and suspends the anchor bolt 3B on the flat plate 32A. The above-described flat plate 32A and the nut 32B constitute a positioning jig for positioning the position of the anchor bolt 3B.

Next, the molding of the form wall panel 1 for building a wall surface according to the third embodiment shown in FIG. 6 will be described. First, FIG.
As shown in the figure, the flat plate 32A was inserted into the vertical position of the forming mold frame 31 at a position closer to the inside by 1/4 of the horizontal width from the left and right ends of the mold panel body 2, and was passed through each through hole. An anchor bolt 3 </ b> B in which a nut 32 </ b> B is screwed into a male screw portion is suspended in the forming mold 31 and supported. And
By filling and solidifying the concrete in the forming mold 31, the wall panel forming mold panel 1 can be formed.

Next, a case in which the retaining wall is constructed by arranging the formwork panels 1 for constructing the wall surface will be described. First, the angle material 12 is made to correspond to each of the lower anchor bolts 3B in a state where the wall-form building form panels 1 are horizontally long and arranged sideways.
A part of the semi-embedded fixing member, which protrudes the same part as the upper half of A, is embedded and a foundation is cast. Then, the form plate 21
After leaning, the lower anchor bolt 3B is inserted into the hole of the part protruding from the base of the semi-buried fixing member, and the nut 12B is screwed to the anchor bolt 3B,
The first-stage wall forming form panels 1 are arranged side by side.

Next, the lower hole 12dh of the angle member 12A is formed.
Through the upper anchor bolt 3B of the first-stage wall forming form panel 1 and the nut 12B into the anchor bolt 3B.
Then, the angle member 12A is fixed to the first-stage wall-forming formwork panel 1, and the other end of each separator 13 is fixed to the formwork plate 21 by the fixing member 14. Then, the second-stage wall forming form panel 1 is shifted from the first-stage wall forming form panel 1 by 1/2 of the horizontal width, and the second-step wall forming is formed in the upper hole 12uh of the angle member 12A. The lower anchor bolts 3B of the formwork panel 1 are inserted, and the nuts 12B are screwed into the anchor bolts 3B, so that the second-stage wall-forming formwork panels 1 are arranged side by side.

By sequentially arranging the formwork panels 1 for wall surface construction in this manner, a formwork can be obtained. In addition, the action of the elastic resin layer 4 accompanying the casting of the concrete C,
Since the action of the elastic resin layer 4 when the rainwater or the like enters between the solidified concrete C and the elastic resin layer 4 and freezes or when the frozen rainwater melts is the same as that of the second embodiment, the description will be made. Is omitted, but also in the third embodiment,
The same effect as in the second embodiment can be obtained.

In the first embodiment described above, the hook 3A has been described as an example in which the shape of the hook 3A is a V-shape that is angularly outward. Needless to say, it may be. Further, in the second embodiment, the hook 3 is a rigid body that cannot be elastically deformed, but may be one that can be elastically deformed similarly to the hook 3A of the first embodiment. As described above, when the hook of the second embodiment has elasticity, the elastic deformation of the elastic resin layer 4 is added to the elastic deformation of the hook, so that the absorption of stress due to freezing of rainwater or the like can be increased. .

Further, an example is shown in which the device to be connected is the hook 3 or the anchor bolt 3B, and the connecting member is the connecting plate 12, or the angle member 12A and the bolt 12B.
The coupling member is a cap nut, and the connecting member is an angle material 12A.
Needless to say, the bolts B and the bolts B may be used. In this case, the positioning jig may be composed of, for example, a flat plate 32A and bolts.

Although the reinforcing bars are not shown in FIG. 7 for explaining the third embodiment, the reinforcing bars may be embedded or the head side of the anchor bolt 3B may be welded to the reinforcing bars to be embedded. In each of the above embodiments, the form panel body 2
Is formed of concrete, but the form panel body 2 may be formed of plastic or the like in addition to concrete.

[0044]

As described above, according to the present invention, the hook has elasticity so that the hook is elastically deformed to extend the entire length, or the hook is elastically deformed on the back surface of the wall panel. Because the resin layer is provided, the hook or elastic resin layer is elastic even if the rainwater that has entered between the back of the wall construction form panel and the solidified concrete freezes and the frozen rainwater repeatedly melts. Since the stress caused by freezing of rainwater and the like that has entered between the back surface of the wall construction form panel and the solidified concrete does not act on the wall construction form panel by being deformed,
Cracks do not occur in the wall-building formwork panel, and there is no possibility that a part or the whole of the wall-building formwork panel will fall off, and the landscape decorated with the wall-building formwork panel can be maintained. .

Further, the elastic resin layer provided on the back surface of the wall panel for forming a wall has good adhesiveness to a sealing material for sealing between the wall panels for forming a wall. In addition, there is no need to worry about leakage of highly fluidized concrete or the like from between the wall construction form panels.
Furthermore, since the elastic resin layer is provided on the back surface of the wall-building form panel, moisture such as cast concrete does not penetrate into the surface of the wall-building form panel through the capillary tube of the wall-building form panel. In other words, since the elastic resin layer blocks the penetration of moisture to the surface of the wall-building formwork panel, the efflorescence phenomenon of floating lime or the like that precipitates on the surface of the wall-building formwork panel does not occur, and The surface of the formwork panel is not stained, and the landscape is not damaged.

[Brief description of the drawings]

FIGS. 1A and 1B are explanatory views of a wall construction state showing a wall construction form panel according to a first embodiment of the present invention, and FIG. 1A is a state of a hook before elastic deformation. Indicates that
(B) shows the state of the hook that has been elastically deformed.

FIG. 2 is an explanatory view showing a molding state of the wall surface construction form panel shown in FIG. 1;

FIG. 3 is an explanatory diagram showing another example of a reinforcing bar for forming a hook in the wall surface forming form panel of the first embodiment shown in FIG. 1;

FIGS. 4A and 4B are explanatory diagrams of a wall construction state showing a wall construction form panel according to a second embodiment of the present invention, and FIG. 4A is a state in which an elastic resin layer is slightly restored. Indicates that
(B) has shown the state where the elastic resin layer was compressed.

FIG. 5 is an explanatory view showing a molding state of the wall-form building form panel shown in FIG. 4;

FIG. 6 is a perspective view showing a wall panel forming form panel according to a third embodiment of the present invention.

FIG. 7 is an explanatory view showing a molding state of the wall surface construction form panel shown in FIG. 6;

FIG. 8 is a perspective view showing a conventional wall panel forming form panel.

FIG. 9 is an explanatory view showing a state in which the formwork panels for wall surface construction shown in FIG.

FIG. 10 is an explanatory diagram showing a state of a conventional wall panel forming form panel in a wall wall building state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Form wall panel for wall construction 2 Form panel body 3 Hook 3A Hook 3B Anchor bolt 4 Elastic resin layer 11 Connection fixture 12 Connection plate 12d Lower part 12u Upper part 12A Angle material 12dh Lower hole 12uh Upper hole 12B Nut 13 Separator 14 Fixing member 21 Form plate 31 Mold form 32 Positioning jig 32A Flat plate 32B Nut X Reinforcing bar Y Reinforcing bar Z Reinforcing hook C Concrete G Gap R Crack

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) E04B 2/86 611U

Claims (2)

[Claims] 1. A hook which is opened in the up-down direction at predetermined positions on the back, up, down, left and right, and is engaged with a connecting member of a connecting fixture to engage the hook with a connecting member of a connecting fixture. In the formwork panel, the hook is elastically deformed, so that the entire length is elongated, wherein the formwork panel is used for wall construction. 2. A wall-forming mold that is provided at predetermined positions in the upper, lower, left, and right sides of the back surface, and is vertically and horizontally arranged by engaging a connecting member of a connecting fixture with the connected device. In the panel, an elastic resin layer is provided on the back surface, a formwork panel for wall surface construction.