JP2001241017A - Temporary sill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary sill, the sill portion of which can be easily restored to its original state when removing a weight. SOLUTION: The temporary sill has a sill portion 1. The sill portion 1 is provided with a recess 10 opening upward, and a weight portion (concrete 6) is provided inside the recess 10. A separation portion (sheet 7) to separate the weight portion 6 from the inside of the recess 10 is provided between the weight 6 and the inside of the recess 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a temporary base,
More specifically, the present invention relates to a temporary base that can easily return a base to an original state.

[0002]

2. Description of the Related Art Conventionally, in temporary construction work, temporary guard rails have been installed as railing. For example, in the case of road lining, a temporary guardrail is installed at a boundary between a roadway and an undeveloped road in order to prevent a vehicle from entering an undeveloped road. It is desired that such a temporary guardrail has a configuration with higher transportation efficiency and less labor for installation.

[0003] For example, in a temporary guard rail in which a plurality of columns are suspended from an H-section steel and a beam is attached to the columns, the columns are welded to the H-section steel in advance in a factory or the like. Then, after being transported to the temporary construction site, the beam material is attached to the support. Further, in order to prevent displacement due to collision of an automobile or the like, concrete is poured into H-section steel at a temporary construction site, and the guardrail is made heavy.

[0004] In this temporary guard rail, concrete is cast at the temporary construction site, so that the weight of the guard rail when transporting to the temporary construction site can be made relatively light, and the transportation efficiency is higher.

[0005]

However, the conventional temporary guardrail has a problem that the weight at the time of removal is heavy because concrete is driven in during temporary installation.

Therefore, in order to reduce the weight of the temporary guard rail, the solidified concrete has to be removed, which is troublesome. In addition, it is difficult to clean concrete fixed to the H-section steel, so it is difficult to return the temporary guard rail to its original state and reuse it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a temporary base such as an H-shaped steel which can be easily returned to its original state when removing a weight from a temporary object such as a temporary guard rail.

[0008]

Means for Solving the Problems In order to solve the above problems, the invention according to claim 1 is, for example, shown in FIG.
A temporary base for temporarily installing the base part 1, the base part 1 being provided with a concave part 10 that opens upward, and a weight part (concrete) inside the concave part 10. 6) are provided, and the weight portion 6 and the concave portion 10 are provided.
A separating portion (sheet-like material 7) for separating the weight portion 6 from the inner surface of the concave portion 10 is provided between the inner portion and the inner surface of the concave portion 10.

Here, the temporary base is applied to a temporary structure such as a temporary guard rail, for example.

According to the first aspect of the present invention, since the separation portion is provided between the weight portion and the inner surface of the concave portion, the weight portion does not directly contact the base portion. For this reason, even when, for example, concrete or the like is used as the weight portion, the weight portion can be easily separated from the base portion, and the base portion such as an H-shaped steel can be easily returned to the original state when the weight portion is removed.

Therefore, the base can be easily reused. In addition, since the weight of the temporary base can be reduced by removing the weight portion, the temporary base can be easily removed.

According to a second aspect of the present invention, in the temporary foundation according to the first aspect, the weight portion is configured to include at least one of concrete 6, mortar, and sand.

According to the second aspect of the present invention, concrete, mortar, and sand can be easily obtained, and can be filled in the concave portion according to the shape thereof, so that the weight portion can be easily provided in the concave portion.

According to a third aspect of the present invention, there is provided the first or second aspect.
In the described temporary base, the separating portion is a sheet-like material 7 that can be laid along the inner surface of the concave portion.

According to the third aspect of the present invention, since the weight portion is disposed inside the sheet-like material that can be laid along the inner surface of the concave portion, the weight portion can be disposed at every corner in the concave portion of the base portion. That is, when sand or concrete is placed, for example, the corners in the recess can be filled with sand or concrete, so that the weight portion can be made as heavy as possible.

According to a fourth aspect of the present invention, in the temporary base according to any one of the first to third aspects, the weight portion includes the sand filled inside the concave portion, the upper surface of the sand, and the upper surface. And a cover portion provided so as to cover.

According to the fourth aspect of the present invention, since the covering portion is provided on the upper surface of the sand, it is possible to prevent the sand from being blown out by the wind and rain or flowing out from the concave portion.

According to a fifth aspect of the present invention, in the temporary base according to the fourth aspect, the covering portion is formed of a surface layer or a sheet-like covering sheet formed of at least one of concrete and mortar. And

According to the fifth aspect of the present invention, the covering portion is
When the surface layer is formed of at least one of concrete and mortar, the weight of the base can be further increased. When the cover is a sheet-shaped cover sheet, the cover can be easily covered with sand, and when removed, the cover can be easily removed.

The invention according to claim 6 is the invention according to claim 2 or 3.
In the temporary foundation described in the above, when the weight part is concrete 6 or mortar, a suspending metal part 8 is provided above the concrete 6 or mortar on the opening side of the recess 10 from the upper surface of the concrete 6 or mortar. It is characterized by being embedded in a protruding state.

According to the sixth aspect of the present invention, since the hanging fitting is embedded so as to protrude from the upper surface of the weight, the projecting portion of the hanging fitting is pulled up by, for example, a crane or the like, and the weight is raised to the base. Can be easily removed from

The invention according to claim 7 is the invention according to claim 3 or 6.
In the temporary base described, when the separating portion is the sheet-like material 7 and the weight portion is concrete 6 or mortar, the partition plate 91 is provided between at least the inner surface of the side wall 11 of the concave portion 10 and the sheet-like material 7. It is characterized by being interposed.

According to the invention described in claim 7, since the partition plate is interposed between the inner surface of the concave portion and the sheet-like material, when the partition plate is removed from the concave portion, the inner surface of the concave portion and the sheet-like material are separated. A gap corresponding to the thickness of the partition plate is formed therebetween.
Therefore, when removing the weight portion from the base portion in this state, no frictional force is applied between the inner surface of the concave portion and the sheet-like material, and the weight portion can be easily removed from the base portion.

According to an eighth aspect of the present invention, in the temporary base of the first aspect, the separating portion is a bag member and the weight portion is sand filled in the bag member.

According to the eighth aspect of the present invention, the weight portion can be easily removed from the base simply by removing the bag member filled with sand.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings.

[First Embodiment] First, the configuration will be described. As shown in FIG. 1, a temporary base according to a first embodiment of the present invention includes a long base 1, a column mounting member 2 fixed to the base 1, and a column mounted to the column mounting member 2. And a temporary guardrail provided with the support pillar 3 provided.

As shown in FIG. 2, the base 1 is an H-section steel. Side wall 11 as both flanges and bottom wall 1 as web
2, a long concave portion 10 opening upward is formed. Further, as shown in FIG. 1, the column mounting member 2 to which the column 3 is welded is fixed to the concave portion 10 by the fastening material 5. The beam members 4 are attached to the plurality of installed columns 3 so as to span them.

As shown in FIG. 3, in the base portion 1 of the temporary guard rail, a concrete 6 serving as a weight portion is provided inside the concave portion 10. Here, FIG. 3 is a schematic sectional view of the base 1. In an upper part of the concrete 6 which is an opening side of the concave portion 10, a hanging metal fitting 8 is embedded in a state where a part thereof protrudes from the upper surface of the concrete 6.

A sheet 7 is provided between the concrete 6 and the inner surface of the recess 10, and the concrete 6 is separated from the inner surface of the recess 10. The sheet 7 is made of a material through which concrete does not pass, such as a vinyl sheet or a nonwoven fabric.

As shown in FIG. 2, a partition plate 92 is provided adjacent to a column mounting member (not shown) below the column 3.
Are provided from one side wall 11 of the recess 10 to the other side wall 11. In addition, the partition plates 92 are also provided at both ends of the elongated concave portion 10 from one side wall 11 to the other side wall 11.

The partition plate 91 extends between the adjacent columns 3 from the partition plate 92 on one column 3 to the partition plate 92 on the other column 3, and is formed on the inner surface of the side wall 11 of the recess 10. It is installed adjacent. Further, the partition plate 91 is provided at the end of the long recess 10.
2 to a partition plate 92 adjacent to the column 3 provided on the end side, and is installed adjacent to the inner surface of the side wall 11 of the recess 10. As shown in FIG.
Is interposed between the inner surface of the side wall 11 of the concave portion 10 and the sheet-like material 7.

The partition plate 91 (92) is a substantially rectangular plate, for example, as shown in FIG. A ring-shaped hook 91 a is attached to an upper end surface of the partition plate 91. For the partition plates 91 and 92, for example, a veneer plate, an acrylic plate, or the like is used.

Next, a method of temporarily setting the temporary base will be described. First, as shown in FIG. 2, partition plates 91 and 92 are arranged in the concave portion 10 of the base 1. Next, as shown in FIG.
The sheet-like material 7 is spread along the inner surface of the box formed by the partition plate 91 (92) and the bottom wall 12 of the base 1.

Next, concrete 6 is poured into the box in which the sheets 7 are spread. At this time, the hanging fitting 8 is embedded in the concrete 6. In this way,
As shown in FIG. 2, concrete 6 is cast into the recess 10 of the base 1.

When removing the concrete 6, first,
The hook 91a attached to the upper side end surface of the partition plate 91 (92) is pulled up, and the partition plates 91 and 92 are attached to the base unit 1.
From the recess 10. After that, the hanging bracket 8 is pulled up by a crane or the like, and the concrete 6 is placed on the base 1.
From the recess 10.

As described above, in the temporary base of the first embodiment, since the sheet 7 is provided between the concrete 6 and the inner surface of the recess 10, the concrete 6 does not adhere to the inner surface of the recess 10. . Therefore, when removing the temporary guard rail, there is no need to repair the base 1 after removing the concrete 6 from the base 1, and the base 1 can be easily reused. Further, the concrete 6 can be easily removed from the base 1 as compared with the conventional method in which concrete is directly cast on the base.

Since concrete is easily available and can be filled in accordance with the shape of the concave portion 10, the concrete 6 serving as a weight portion can be easily provided in the concave portion 10.

The sheet-like material 7 is provided on the bottom wall 1 of the base 1.
2 and the partition plates 91 and 92 are installed along the inner surface, so that the concrete 6 can be poured into every corner in the concave portion 10 of the base 1. Therefore, the weight of the base 1 can be made as heavy as possible.

Also, hanging metal fittings 8 are placed on top of the concrete 6.
Is embedded, so when removing the concrete 6,
Just pull up the hanging bracket 8 and easily
Can be removed from the base 1.

Further, since the partition plate 91 is provided between the inner surface of the side wall 11 of the concave portion 10 and the sheet-like material 7, when the partition plate 91 is removed, the inner surface of the side wall 11 of the concave portion 10 and the sheet-like material 7 are removed. 7, a gap corresponding to the thickness of the partition plate 91 is formed. When the concrete 6 is pulled up in this state, no frictional force is applied when the concrete 6 is pulled out from the base 1, so that the concrete 6 can be easily removed.

Although the temporary base of the first embodiment is applied to a temporary guardrail, the present invention is not limited to this, and can be applied to temporary structures other than the temporary guardrail. It is.

The base 1 is made of an H-shaped steel. However, the present invention is not limited to this. If the base 1 is provided with a concave portion that opens upward, for example, it may be formed in a channel steel or box shape. It may be a member or the like. Further, for example, the temporary base of the present embodiment may be applied to a block-shaped base on which one pillar of a guardrail is suspended.

In addition to the concrete 6, a mortar or the like may be provided as the weight portion.

[Second Embodiment] First, the configuration will be described. Note that, in the following embodiments, the description of the same configuration as that of the first embodiment will be omitted.

In this embodiment, the same H-section steel as the base 10 in the first embodiment is used as the base. A sheet-like material is laid in the concave portion of the base along the inner surface. Inside the sheet-like material, sand and a covering portion that covers the upper surface of the sand are provided as a weight portion. The covering part is a surface layer formed of concrete.

As described above, since the surface of the sand is covered with the concrete, it is possible to prevent the sand from being blown out by the wind and rain or flowing out from the recess. In addition, concrete and sand can be easily obtained, and can be filled in the concave portion according to the shape thereof.

The surface layer covering the upper surface of the sand is not limited to concrete, but may be formed of mortar. The same effect can be obtained by covering the upper surface of the sand with a sheet-like cover sheet.

[Third Embodiment] First, the configuration will be described. In the present embodiment, the same H-section steel as the base 10 in the first embodiment is used as the base. And, in the concave portion of the base portion, a sandbag bag such as a PP (polypropylene) bag filled with sand is filled therein.
Installed directly.

As described above, since the sand as the weight part is placed in the sandbag (bag member) in the inside of the concave portion 10, the scattering and outflow of the sand can be prevented, and the sand can be easily removed. Can be removed.

It is also possible to provide a separating portion such as a sheet-like material on the inner surface of the concave portion 10, place the sandbag in the concave portion, and cover the upper surface of the sandbag with concrete or mortar.
In this case, concrete or mortar flows into the gap between the sandbags, so that the weight of the base can be further increased.

[0052]

According to the first aspect of the present invention, since the base can be easily returned to the original state, the base can be easily reused. In addition, since the weight portion is easily removed, the weight of the temporary base can be easily reduced.

According to the second aspect of the invention, the same effects as those of the first aspect can be obtained, but concrete, mortar, and sand can be easily obtained. Since the weight can be filled, the weight portion can be easily provided in the concave portion.

According to the third aspect of the invention, the same effect as the first or second aspect of the invention can be obtained, and of course, the weight portion can be arranged at every corner in the concave portion of the base portion. Parts can be as heavy as possible.

According to the fourth aspect of the present invention, the same effects as those of the first to third aspects can be obtained. From flowing out.

According to the fifth aspect of the invention, the same effects as those of the fourth aspect of the invention can be obtained, and at least one of concrete and mortar can further increase the weight of the base. it can. Further, the cover sheet can easily cover the sand, and the cover sheet can be easily removed at the time of removal.

According to the sixth aspect of the present invention, the same effects as those of the second or third aspect of the invention can be obtained, and the protruding portion of the hanging bracket is pulled up so that the weight portion can be easily moved from the base portion. Can be removed.

According to the seventh aspect of the present invention, the same effects as those of the third or sixth aspect can be obtained, and the weight portion is removed from the base with the partition plate removed from the concave portion. At the time of removal, no friction force is applied, and the weight portion can be easily removed from the base.

According to the eighth aspect of the present invention, the same effect as that of the first aspect of the invention can be obtained, and the weight can be easily removed from the base by simply removing the bag member filled with sand. The part can be removed.

[Brief description of the drawings]

FIG. 1 is a diagram showing an entire configuration of a temporary base according to an embodiment to which the present invention is applied.

FIG. 2 is a perspective view for explaining a state in which concrete is cast on a base portion of FIG. 1;

FIG. 3 is a cross-sectional view of an essential part for describing a state in which concrete is cast on the base part of FIG.

FIG. 4 is a front view showing a configuration of a partition plate of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base part 6 Concrete (weight part) 7 Sheet material (separation part) 8 Suspension metal fitting 10 Concave part 11 Side wall 91 Partition plate

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshiro Shindo 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction F-term (reference) 2D101 CA06 EA07 FA11 FA22 FB11 GA03

Claims (8)

[Claims] 1. A temporary base for temporarily installing a base part, the base part having a concave part that opens upward, and a weight part being provided inside the concave part. A temporary base is provided between the weight portion and the inner surface of the concave portion, wherein a separating portion for separating the weight portion from the inner surface of the concave portion is provided. 2. The temporary base according to claim 1, wherein the weight portion includes at least one of concrete, mortar, and sand. 3. The temporary base according to claim 1, wherein the separating portion is a sheet-like material that can be laid along the inner surface of the concave portion. 4. A weight unit comprising: sand filled inside the concave portion; and a cover provided on an upper surface of the sand so as to cover the upper surface. Item 4. The temporary base according to any one of Items 1 to 3. 5. The temporary base according to claim 4, wherein the covering portion is formed of a surface layer or a sheet-like covering sheet formed of at least one of concrete and mortar. 6. When the weight portion is concrete or mortar, a suspension fitting is embedded in an upper portion of the concrete or mortar on the opening side of the concave portion, with a part thereof protruding from the upper surface of the concrete or mortar. The temporary base according to claim 2, wherein the temporary base is provided. 7. When the separating portion is a sheet-like material and the weight portion is concrete or mortar, a partition plate is interposed at least between the inner surface of the side wall of the recess and the sheet-like material. The temporary base according to claim 3 or 6, wherein: 8. The temporary base according to claim 1, wherein the separating portion is a bag member, and the weight portion is sand filled in the bag member.