JPH0144678Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention is provided with first and second foundation formwork pieces, and the accuracy is maintained between an underground beam and an above-ground beam spanned above the underground beam. This invention relates to a foundation formwork that can form a cloth foundation well and efficiently.

[Background technology]

Steel columns are erected on underground beams, and above-ground beams that form the foundation for receiving the walls of the building are erected between the columns in advance. By forming a fabric foundation that is approximately the same height as the top surface, the lower ends of the columns are buried, and at the same time, the above-ground beams are brought into close contact with the fabric foundation, which improves the rigidity of the frame structure and improves the construction method of the frame structure. Work is being streamlined. However, in such a cloth foundation, it is sometimes necessary to form a discontinuous part that is perpendicular to the above-ground beam and partially interrupted at the lower end of the above-ground beam. In such cases, conventional methods have been used to partition the lower surface of the above-ground beam and the underground beam using a piece of material, or when the above-ground beam is a channel member or H-beam with a recess on its side. However, this work was extremely time-consuming and difficult to form a highly accurate foundation formwork because it was assembled on-site using made-up wood pieces. Therefore, it was also inferior in economic efficiency.

[Purpose of invention]

The object of the present invention is to provide an economical foundation formwork that is equipped with first and second foundation formwork pieces and can be assembled conveniently and with high precision even on a cloth foundation having a discontinuous portion as described above. It is said that

[Disclosure of invention]

An embodiment of the foundation formwork 1 of the present invention will be described below with reference to the drawings, taking as an example a case where the foundation formwork 1 of the present invention is used to form a cloth foundation 4 at the corner of an underground beam 2 on which columns C are erected.

In the figure, the foundation formwork 1 is the first foundation formwork piece 1
1A, 11B and a second foundation formwork piece 12,
The first foundation formwork piece 11A and the first foundation formwork piece 11B are formed oppositely, and in this embodiment, the first and second foundation formwork pieces 11A, 1
In addition to 1B and 12, a third foundation formwork piece 13, a fourth foundation formwork piece 14, and a fifth foundation formwork piece 15A and 15B, which are opposite to each other, and a sixth foundation formwork piece 16 as necessary. Both are made of steel plate,
And one side of them is formed into a flat molding surface that comes into contact with the concrete.

The column C is made of, for example, H-beam steel, and is erected by bolting the base plate 21 to the corner part of the underground beam 2, and the column C is made of an underground beam as shown in FIG. The stay 22 is reinforced by a stay 22 whose lower end is fixed to one piece 2a of the second piece 2. The stay 22 has a protruding piece 23 facing towards the piece 2a. A ground beam 3a extending upward is bolted and fixed via a joint plate 24, and therefore, the ground beam 3a has recesses 26a and 26b surrounded by upper and lower flanges and webs on both sides a and b. Also, on the other side of the column C, there is another ground beam 3b of the same size as the ground beam 3a extending along and above the other piece 2b of the underground beam 2.
The ground beam 3a is fixed to the pillar C by the support plate 25.
It is fixed at the same height.

The first foundation formwork pieces 11A and 11B each have a first surface portion 31, a second surface portion 32, and a third surface portion that are rectangular.
It has a surface portion 33 of. The first surface portion 31
By installing the foundation formwork pieces 11A and 11B on the underground beam 2, their upper ends can be close to the lower surface of the above ground beam 3 (the above ground beams 3a and 3b are collectively referred to as the above ground beam 3). has a height, and in this example,
It extends in the same direction as the ground beam 3.

The second surface portion 32 has an upper end that is approximately the same height as the upper surface of the ground beam 3a, has a height higher than the first surface portion 31, and is formed perpendicularly to one end of the first surface portion 31. The intersection part has a first surface part 31 at the upper end.
A notch 27 having the same height and the same width as the above-ground beam 3 is provided, and the first surface 31 is parallel to and below the outer edge of one side b of the above-ground beam 3a, and is located below the piece 2a of the underground beam 2. placed on the top. With this, the notch 27
The lower edge of the notch passes below the ground beam 3 in substantially contact with the lower surface of the ground beam 3, and one vertical edge c of the notch rises along the inside of the ground beam 3a, that is, the other side a, and the second surface 32 projects beyond the other side a. The third surface portion 33 is formed by bending the other edge of the second surface portion 32 in a direction different from that of the first surface portion 31, so that the third surface portion 33 can
B has a substantially Z-shaped horizontal cross section, and the first base formwork pieces 11A, 11B form the second surface portion 32 from different edges of the first surface portion 31, so that
Formed randomly. Note that the first foundation formwork piece 1
1A and 11B bend the steel plate to form the first, second, and third surface portions 31, 32, and 33,
At its upper and lower ends, flanges 41 and 42 are provided which are bent outward except for the upper end of the notch 27, while flanges 41 and 42 are connected to the outer ends of the first surface 31 and the third surface 33, respectively. Then, the end plates 44 and 45, which have the clip holes 43 therethrough, are attached. Also, on the end plate 44, as illustrated in FIG. 4, there is a holding plate to which a U-shaped clip 49 is attached, which has a hook rod 46 welded to a sliding shaft 47, which can clamp the two end plates 44, 45 facing each other as they tilt. 50 are welded in parallel.

The second basic form piece 12 is a groove-shaped piece in which flanges 52 and 53 are provided on the upper and lower sides of a web 51, and the height between the outer surfaces of the flanges 52 and 53 is equal to the height of the recess 26.
The recesses 26a and 26b have a width that is substantially equal to the height between the recesses 26a and 26b, and a width that is longer than the depth of the recesses 26a and 26b. As a result, the first foundation formwork pieces 11A, 11 are attached so that the edge c runs along the side part a.
By attaching the distal end thereof to the edge c of B so as to protrude, the distal end thereof can protrude into the recess 26a and block the recess 26a. Note that the second base formwork piece 12 is fixed at its flange 52 to the flange 41 of the second surface portion 32 using the fixture 10. The fixture 10 is provided with a screw shaft 56 that advances and retreats perpendicularly to the upper part of a U-shaped base frame 55 provided with an upwardly facing protrusion 54 on the lower part.
By sandwiching the flanges 41 and 52 between the screw shaft 56 and the screw shaft 56, the second foundation formwork piece 12 can be fixed.

The third foundation formwork piece 13 has a rectangular shape with the same height as the first surface portion 31 of the first foundation formwork pieces 11A, 12A, and the fourth foundation formwork piece 14 has a The third and fourth foundation formwork pieces 13 and 14 are each provided with a retaining plate 50 having flanges 41 and 42 and a U-shaped clip 49. , end plates 44, 45 are provided, and a reinforcing plate 57 is provided on the fourth base form piece 14 at an intermediate position in the width direction thereof.

The fifth foundation formwork pieces 15A, 15B are
A fifth surface portion 35 having the same height as the second surface portion 32 is provided on the fourth surface portion 34 having the same dimensions as the surface portion 31 , and is provided with a cutout portion 29 . One edge d has the same width as the above-mentioned notch 29 and the above-ground beam 3, and the fourth surface 34 is disposed parallel to the outer edge of the side b of the above-ground beam 3b. Stand up facing and close to a. Note that a holding plate 50 having end plates 44, 45 and a U-shaped clip 49 on each edge thereof is also attached to the fifth basic formwork pieces 15A, 15B, and the fourth,
Notches 29 are provided at the upper and lower ends of the fifth surface portions 34 and 35.
The flanges 41 and 42 are formed, leaving only .

The sixth foundation formwork piece 16 has the same height as the second surface 32 and has a notch 59 in the center of the upper end into which the ground beam 3 can be inserted.
Sixth surface portions 37, 37 having a small width and the same height are provided, flanges 41, 42 are similarly provided, and end plates 44, 45 and a retaining plate 50 are attached.

Therefore, as shown on the left side of Figure 5 and in Figure 6,
A cloth foundation part 4a that straddles both sides of the above-ground beam 3a on the above-ground beam 3a side of the column C and is interrupted at the outer end portion of the stay 22, and a cloth foundation that continues therefrom and rises only on the side b side of the above-ground beam 3a. 4b and a cloth foundation 4c provided on the side b side of the above-ground beam 3b, the first surface 31 of the first foundation formwork piece 11A is placed on the side of the above-ground beam 3a. By positioning it along the outer edge of part b and installing it so that the notch 27 of the second surface part 32 crosses the lower part of the ground beam 3a,
As described above, the second surface portion 32 rises along one edge c of the second surface portion 32 and intersects with the side portion a, and using the fixture 10, the second foundation formwork is installed so as to block the recess 26a. Attach piece 12. In addition, the fourth surface part 34 of the fifth foundation formwork piece 15A is arranged on the lower surface of the ground beam 3b along the outer edge of the side part b, and the second foundation is placed on one edge d facing the side part a. A formwork piece 12 is attached to block the recess 26a. For example, a fourth foundation formwork piece 14 is provided on the outer periphery of the underground beam 2.
... can be formed in a row to form an outer frame portion, and by pouring concrete, the cloth foundation portions 4a, 4, which are at the same height as the upper surface of the above-ground beam 3, can be formed.
A cloth foundation 4 consisting of b and 4c can be formed. Note that in order to form the cloth foundation 4 shown on the right side of FIG. 5, which is in contrast to the case of FIG. 6, first, second, third, fourth, and fifth foundation formwork pieces 11B, 13 ,14,15
In addition to using B, when forming a cloth foundation 4 having a discontinuous part completely discontinued below the underground beam 3b as shown in the lower right of Fig. 5, the sixth foundation form illustrated in Fig. 3 is used. It can be formed by adopting the piece 16.

[Effect of idea]

In this way, the foundation formwork of the present invention has the first and second foundation formwork pieces, and even if there is a recess on the side of the above-ground beam, it is possible to prevent concrete from flowing out from the recess, and the above-ground beam A tall cloth foundation reaching the top surface can be easily formed. In addition, since the first and second foundation formwork pieces are formed as a unit in advance, they can be assembled more easily and with higher precision than when they are used as conventional materials, increasing the efficiency of mold-assembly work and reducing costs. Furthermore, it is possible to shorten the construction period and to greatly improve the precision of the fabric foundation to be formed. In addition, in the basic formwork of the present invention, as the fixture for fixing the first and second basic form pieces, in addition to the one in the above embodiment, a clip-like type having a pusher piece brought close by a spring may be adopted. The basic formwork of the present invention can be modified into various forms.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views illustrating an embodiment of the present invention together with other foundation formwork pieces, and Figure 3 is a perspective view illustrating other foundation formwork pieces that can be employed in the foundation formwork of the present invention. 4 is a perspective view illustrating a U-shaped clip, FIG. 5 is a line diagram illustrating the use of the basic formwork of the present invention, FIG. 6 is a perspective view showing its usage, and FIG.
The figure is a perspective view illustrating a frame structure in which the basic formwork of the present invention is adopted. 2... Underground beam, 3, 3a, 3b... Ground beam, 4
...Cloth foundation, 11A, 11B...First foundation formwork piece, 12...Second foundation formwork piece, 26a, 26b
... recess, 31 ... first surface, 32 ... second surface, 33 ... third surface, a, b ... side, c
...A connection.

Claims (1)

[Scope of utility model registration request] A foundation formwork for forming a cloth foundation that connects an above-ground beam that spans above an underground beam and has a recessed portion on its side, and the above-mentioned underground beam, the foundation formwork being a foundation formwork for forming a cloth foundation that connects the above-mentioned underground beam with a first surface part parallel to and disposed below one side of the ground beam and having a height such that its upper end is close to the lower surface of the ground beam; The first surface is formed at one end of the first surface at right angles to the first surface so that it passes under the ground beam and protrudes beyond the other side of the ground beam. a first base formwork piece comprising a second surface portion provided with a notch portion having one edge rising along the side portion;
a second foundation formwork that can be fixed to the first foundation formwork piece and extends from the one edge of the notch of the second surface toward the recess on the other side of the ground beam and blocks the recess; A basic formwork consisting of pieces.