JP2560802Y2 - Permanent formwork for beams and their mountings - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] The present invention relates to forming a beam.
The reinforcement of the beam consisting of the main reinforcement and the ribs embedded in the interior is bent in three directions from below, a groove having a substantially U-shaped cross section is attached, concrete is poured into the groove, and the groove is formed. The present invention relates to a permanent form of a beam that forms an outer surface of the beam while leaving the body as it is, and a fixture for attaching the permanent form to a reinforcing bar.

[0002]

2. Description of the Related Art In general, reinforced concrete buildings are provided with formwork facing each other, connected and reinforced with a home tie, cast concrete between the formwork, and solidify and cure. It is made by removing and finishing the surface.

However, in the above method, the form material must be carried into the site and assembled by a large number of skilled workers. In addition, after casting concrete, curing and curing, the formwork is dismantled and stored for the next construction work, which requires a large storage space. Problem has occurred.

In order to solve this problem, building materials having a beautiful surface are locked and fixed to face each other at intervals, and concrete is poured between them, and then the building material is directly removed from the outside or inside without being removed. The permanent formwork method has been implemented.

[0005]

However, since it is difficult to form a permanent form for the beam, the lower three sides of the reinforcing bars including the main reinforcing bars and the ribs embedded in the conventional beam are bent. After forming the formwork and connecting and reinforcing it with a home tie, casting concrete inside and curing it, then removing the formwork and finishing the surface.

The inventors of the present invention have conducted various studies to perform a permanent formwork method for beams, and as a result, the permanent formwork for beams can be manufactured by the precasting method, but the cost is high, and thus the use is difficult. Extrusion molding can be freely selected in length,
Since an arbitrary cross-sectional shape can be obtained, it was considered that a permanent form of the beam could be efficiently and inexpensively obtained. The present invention has been made based on the above idea, and a beam with an external finish can be obtained by attaching a permanent form of the beam around the lower three sides of the beam arrangement and casting concrete. An object of the present invention is to provide a permanent form and an attachment for attaching the permanent form to a reinforcing bar.

[0007]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
In addition, the permanent form of the beam according to the first aspect is designed to cut any part.
A beam with a substantially U-shaped groove on the same side, consisting of main bars, ribs, etc.
Ceramics materials that are arranged by bending the reinforcement of the three sides from below
The permanent form of the beam formed by extruding
And attach the permanent formwork of a beam with a substantially U-shaped cross section to the reinforcement of the beam
When installing, make sure that
Spacer that is convex in the length direction is integrally formed on the surface
It is characterized by being. The beam according to claim 2
The permanent form according to claim 1, wherein the permanent form is
A part in which a substantially U-shaped groove is divided in the length direction
Each part is made of ceramic materials.
It is characterized by being formed by extrusion molding.

[0008] The permanent form of the beam according to claim 3 is claim 1.
Alternatively, in the permanent form of the beam according to claim 2, the cross section is substantially
At least a part of the permanent form of the U-shaped beam is
It is characterized in that a plurality of through holes are formed.
The permanent form of the beam according to claim 4 is any one of claims 1 to 3.
4. The permanent form of the beam according to claim 1, wherein the cross section is substantially U-shaped.
Reinforcing the outer periphery of the permanent form of the beam with removable reinforcement
It is characterized by.

According to a fifth aspect of the present invention, there is provided a mounting tool for a permanent form of a beam.
At the top of the beam reinforcement, at right angles to the length direction and the width of the reinforcement
Hoisting muscle provided above the reinforcing bar in the direction
And one end is attached to each side of
Along the outer surfaces on both sides of the permanent form of the beam that bends the streaks from below
Telescopic side muscles that hang down
At the bottom of the permanent formwork with both sides attached to the ends
It is characterized in that it has a lifting muscle that comes into contact with it. Claim
The mounting fixture for a permanent form of a beam according to claim 6 is the beam according to claim 5.
Of the permanent formwork fixtures of
Set between upper muscles, keep a certain distance between them
A pillow member is provided.

[0010]

Since the present invention has the above-mentioned structure, a permanent form of a beam having a desired shape can be easily obtained, and the permanent form is fixed to a predetermined position of a reinforcing bar using a fixture. When cast, a beam is formed with the permanent form fixed to the outer surface. Also, adjust the inner position so that it is
Spacer that is convex in the length direction is integrally formed on the surface
The spacers provide a permanent
The position of the formwork can be correct.

[0011]

1 and 2 show an embodiment of a permanent beam formwork according to the present invention. The shape of the permanent form is not limited, such as a semicircular groove, a polygonal groove, or the like, as long as the cross-sectional shape is the same groove-shaped body in any portion. 1 will be described as a representative example.

The permanent form 1 deflects three lower sides of the beam arrangement 2 consisting of the main reinforcement 2a, the rib 2b, etc.
Can also be attached to this as a support. The permanent form 1 may be a permanent form in which a plurality of parts 3 obtained by dividing the permanent form 1 by a plurality of division lines 3a in the longitudinal direction are combined. The permanent mold is formed by extrusion of a ceramic material, and the cross section perpendicular to the extrusion direction has exactly the same shape. Therefore, as shown in FIG. 1, this is divided in the longitudinal direction, and the part 3 forming the combined permanent form is also
It can be made by extrusion, and in any case, an efficient and inexpensive permanent form 1 can be obtained.

In the case where the above-mentioned parts 3 are combined, if a real part 5 to be engaged is formed in the divided part (contact part) 4 as shown in FIG. Lateral displacement of the portion 4 is prevented, and the permanent mold can be easily formed. The permanent form combined with the above-mentioned components 3 is assembled into a permanent form by a detachable reinforcing member 6 or the like as shown in FIGS. 4 and 5, for example, and is used, but the assembling takes time. However, it is only necessary to extrude a component 3 having a simple shape such as a plate,
It has the advantage of easy extrusion. The reinforcing tool 6 can be used as a mounting tool for the reinforcing bars 2, and may be mounted on an integrally formed permanent form, and may be mounted on the reinforcing bars via this. Hereinafter, the integrally formed permanent form will be described, and the description of the assembled permanent form will be omitted.

When extruding the permanent form, as shown in FIG. 6, convex ridges 7 in the longitudinal direction are formed on the inner surface. Permanent formwork 1
Can be positioned correctly. Similarly, it is easy to form the convex portion 8 corresponding to the dovetail groove, and the engagement between the appropriately formed and cast concrete and the permanent form 1 can be strengthened. Also, the height dimension of the projection 8 corresponding to the dovetail groove is set to the same height as the projection 7 without forming the projection 7, and this is used to determine the position of the permanent form 1 with respect to the reinforcing bar 2. Is also good.

Further, as shown in FIG. 7, during the extrusion molding, it is easy to form the through holes 10 in the longitudinal direction, and it is possible to provide a large number of through holes as a whole to reduce the weight by forming a hollow body. . Also, as shown in FIG. 8, a hanging rod 11 is inserted into a through hole 10 'along both edges of the permanent form 1, and the hanging rod 11 is permanently attached to a reinforcing bar through a portion protruding from the through hole 10'. The mold 1 may be attached. For example, as shown in FIG. 9, an upper streak 12 is attached across the hanging bars 11, 11, and one end of an extendable side bar 13 is attached to each of the hanging bars 11, 11. The other ends are attached to the second suspension rods 11 ', 11' inserted through the through holes, respectively.
1, a permanent form 1 is lifted and attached to a reinforcing bar. 14 is a turnbuckle.

The above-mentioned upper muscle 12, side muscle 13, and hanging rods 11, 1
For engagement with 1 ', the annular body at both ends is passed through the hanging rod,
The ring may be a hook. The permanent form provided with the through-holes 10 as described above can be attached to the hanging rods 11 by using the through-holes and locked to the reinforcing bars via the hanging rods 11.

However, as shown in FIG. 10 and FIG. 11, the mounting tool for mounting all of the permanent form of the present invention on the reinforcing bars is perpendicular to the longitudinal direction on the upper surface of the reinforcing bars 2 and On both sides in the width direction of the reinforcing bars, there are provided lifting bars 21 having both ends protruding, and on both ends of the lifting bars 21, both sides of the permanent form 1 of the beam that bends three sides of the reinforcing bars from below. One end of a stretchable side streak 22 hanging down along is attached, and the other end of the side streak 22 is provided with a lifting streak 23 which contacts the bottom of the permanent form 1. Expansion and contraction of the side streaks 22 of the attachment require a force and a normal turnbuckle 22a is used.

Further, as shown in FIG.
The pillow member 24 having a desired height may be arranged between the reinforcing member 2 and the reinforcing member 2 in order to change the distance between the reinforcing member 2 and the reinforcing member 2 to freely change the position of the permanent form 1 with respect to the reinforcing member 2. Alternatively, as shown in FIG. 12, the pillow member 24 and the lifting muscle 21 may be integrated. When the pillow member 24 is a separate body, the pillow member 24 can be left buried when the concrete is cast, but the pillow member 24 and the lifting muscle 21 remain as an integral body. You.

FIG. 13 shows a case where the lifting muscle 21, the lateral muscle 22, and the lifting muscle 23 shown in FIGS. 10 and 11 are used to strengthen the engagement of the muscles. Abut on the side,
A plate steel, a mold steel 25, or the like, in which holes to be inserted into the lifting muscle 21 and the lifting muscle 22 are provided up and down and one hole is a long hole, is attached. Attach the side streaks 22 and tighten with the nut 27. This side streak 2
By adjusting the turnbuckle 2, the permanent form 1 is firmly and stably mounted.

That is, when a through hole is formed,
In the case where an integral reinforcement is provided, the reinforcement is attached to the reinforcing bars by various methods, but the above-mentioned attachment is applicable to the permanent formwork of all the beams according to the present invention.

[0021]

As described above, since the permanent form of the beam according to the present invention is formed by extrusion of a ceramic material, the length and the cross-sectional shape can be freely selected, and the reinforcement is provided. And cast concrete to form beams with excellent appearance. In addition, the prescribed
Spacer that becomes convex in the length direction on the inner surface so that it is located
Are formed integrally with each other.
The correct position of the permanent formwork relative to the reinforcement
Wear. Also, by using the fixture of the present invention, all the permanent forms of the beam according to the present invention can be easily fastened to the reinforcing bars.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where three sides of a reinforcing bar are surrounded and bent by a permanent form of a beam from below.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a front view of a contact portion of a component.

FIG. 4 is a perspective view in which the periphery of a permanent mold is reinforced with a reinforcing tool.

FIG. 5 is a front view showing another example of the reinforcing device.

FIG. 6 is a front view of a permanent form in which a protrusion corresponding to a ridge and a dovetail groove is formed on an inner peripheral surface.

FIG. 7 is a front view of a permanent form in which a large number of through holes are formed.

FIG. 8 shows a large number of through holes formed in a through hole near the edge;
It is a front view showing the state where the hanging stick used as the base of the attachment was inserted.

FIG. 9 is a front view showing an example of a state in which a permanent form is locked to a reinforcing bar based on a hanging rod.

FIG. 10 is a front view of the fixture for attaching the permanent form of the present invention to the reinforcing bars.

FIG. 11 is a perspective view showing a state in which a pillow member is inserted between the lifting muscle and the reinforcing bars.

FIG. 12 is a perspective view of a pillow member integrated with a lifting muscle.

FIG. 13 is a diagram showing another example of FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Permanent form of beam 2 Reinforcing bar 2a Main reinforcing bar 2b Reinforcing bar 3 Parts 3a Dividing line 4 Dividing part, abutting part 5 Real 6 Reinforcement 7 Convex line 8 Convex portion corresponding to dovetail groove 10 Through hole 10 'Near edge Through-hole 11 Suspension rod 11 'Second suspension rod 12 Upper bar 13 Side bar 14 Turnbuckle 21 Lift bar 22 Side bar 22a Turnbuckle 23 Lifting bar 24 Pillow member 25 Sheet steel 26 Spacer 27 Nut

Claims (6)

(57) [Scope of request for utility model registration] 1. Extrusion of ceramic materials, wherein a section of any part is a substantially U-shaped groove-shaped body, and a reinforcing bar of a beam composed of a main reinforcing bar, a rib bar, etc. is arranged so as to bend in three directions from below. By molding
A beam having a substantially U-shaped cross section , which is a permanent formwork of the formed beam.
When attaching the permanent formwork to the beam reinforcement,
The inner surface to be convex in the length direction so that it is in the specified position.
The permanent form of the beam which is formed integrally with the spacer . 2. A plurality of grooves having a substantially U-shaped cross section are provided in a longitudinal direction.
Formed by combining the divided parts, each part is
Claims which are formed by extrusion of ceramic materials
2. The permanent formwork of the beam according to 1. 3. A permanent form of a beam having a substantially U-shaped cross section is reduced.
A plurality of longitudinal through holes are formed in both
The permanent form of the beam according to claim 1. 4. An outer periphery of a permanent form of a beam having a substantially U-shaped cross section.
4. The method according to claim 1, wherein the reinforcing member is reinforced with a detachable reinforcing member.
Permanent formwork of the beam described in the paragraph. 5. A vertical arrangement in the longitudinal direction on the upper surface of the reinforcing bar of the beam.
Provided at the corner and above the bar in the width direction of the bar
And one end on each side of the lifting muscle
Of the permanent form of the beam which is attached and
Telescopic side muscles hanging along both outer surfaces and this
Permanent with both sides attached to the other end of the lateral streak
A lifting stud that contacts the bottom of the formwork.
A fixture for permanent formwork of beams. 6. A setting between an upper surface of a beam reinforcing bar and a lifting bar.
Pillow members that hold them at regular intervals
6. A fixture for a permanent formwork of a beam according to claim 5, wherein the fixture is sunk.