JP2000073379A - Bar arrangement for mat foundation work execution, and work execution method of the mat foundation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bar arrangement for mat foundation work execution and a work execution method of the mat foundation in which adjacent sheet-like welded metallic nets can be connected to each other in a short time, the execution efficiency of the footing can be improved, and the number of part items can be reduced. SOLUTION: A plurality of sheet-like welded metallic nets 10 which are formed by welding reinforcements 11, 12 extending in the longitudinal and transverse directions in a lattice shape are bar arrangements 5 for mat foundation work execution, reinforcements at the end part on the other sheet-like welded metallic net 10 side adjacent to each sheet-like welded metallic net 10 are extended to the other sheet-like welded metallic net 10 side, and overlapped with the end part of the sheet-like welded metallic net 10 side forming a joint part 10A, and the joint parts 10A are bound by a binding member 13. The sheet-like welded metallic nets 10, 10 adjacent to each other can be connected to each other in a short time, and the number of member items can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcement arrangement for a solid foundation on which a structure such as a building is installed on an upper surface, and a construction method of the solid foundation.

[0002]

2. Description of the Related Art As a foundation of a building, a solid foundation provided on the entire surface without any gap is known in which the whole or most of the building is received by one foundation. Such solid foundations are often used, for example, for three-story buildings or carports because of their high strength. As such a solid foundation, there is one in which foundation beams (upstanding portions) are provided at both ends and an intermediate portion of a foundation slab (bottom portion) (Japanese Patent Laid-Open No. 7-247686). In general, the construction of a solid foundation is performed by installing a formwork after performing root cutting, and welding rebars 21 and 22 extending in the vertical and horizontal directions in the inside of the formwork as shown in FIG. This is performed by setting a plurality of sheet-like welded wire meshes 20 and then pouring concrete slurry into a formwork.

[0003] Such a plurality of sheet-like welded wire meshes 20
The connection between them is made as shown in FIG. That is, the reinforcing bars at the ends of the adjacent sheet-like welded wire meshes 20 and 20 are slightly extended toward the other sheet-like welded wire meshes.
The extension portions 20A are connected to each other by connecting a connection member 25 between the extension portions 20A and binding with a binding member 23 such as a wire. Then, each extension portion 20A, the connection member 25, and the binding member 2
3 and a joint 26 is formed.

[0004]

However, in the connection between the conventional sheet-like welded nets 20, 20, a connection member 25 is provided between the extending portions 20A of the sheet-shaped welded nets 20, 20, and this connection is made. Since both ends of the member 25 and the extending portions 20A of the respective sheet-like welded metal meshes 20 and 20 are bound by the binding member 23, a large number of joints 26 need to be bound at two locations, which is often used for connection. It takes time, and there is a problem that the foundation construction efficiency is poor. Also,
The connection member 2 is used to connect the sheet-like welded wire meshes 20, 20 to each other.
Since 5 is required, there is also a problem that the number of parts increases.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the construction efficiency of a foundation by connecting adjacent sheet-like welded metal meshes in a short time, to reduce the number of parts and to provide a convenient reinforcement for a foundation construction and a solid foundation. It is to provide a construction method.

[0006]

According to a first aspect of the present invention, a solid reinforcing bar according to the present invention will be described with reference to the drawings, as shown in FIGS. 1
2 is a sheet-like welded wire mesh 10 formed by welding in a grid form
Are a plurality of solid foundation rebars 5 combined,
The reinforcing bar at the end of each sheet-like welded wire mesh 10 adjacent to the other sheet-shaped welded wire mesh 10 extends to the other sheet-like welded wire mesh 10 side, overlaps with the end of the sheet-shaped welded wire mesh 10, and is adjacent thereto. A joint portion 10A for joining the sheet-like welded metal meshes 10 to be formed, and the joint portions 10A are bound by a binding member 13.

In the above description, the lattice-like shape formed by the reinforcing bars extending vertically and horizontally may be rectangular or square. In the case of a rectangle, the length of the joint portion along the long side direction is
When the length of the rectangular shape of each sheet-like welded wire mesh is, for example, about twice as long as that of the rectangular shape, it is preferable to dispose a reinforcing reinforcing bar at the center in the longitudinal direction. The binding member is not particularly limited as long as it can easily bind the joint portions together. For example, it is preferable to use a wire or a string.

In the present invention, in order to connect the sheet-like welded metal meshes, the joints of the respective welded metal meshes may be overlapped with each other, and the portions may be bound by a binding member. Since only one bundling is required for each joint, the bundling operation is halved as compared with the conventional two-bundling, so that the connection between adjacent sheet-like welded nets can be performed in a short time. As a result, the workability of the foundation can be improved. Further, in order to connect the respective sheet-like welded meshes, the joint portions of the respective welded meshes may be overlapped with each other, and the portions may be bound by a binding member. Therefore, the conventional connection wire mesh is not required for connecting the weld wire meshes, and the number of members can be reduced.

As shown in FIGS. 1 and 3, the solid foundation reinforcement according to the second aspect of the present invention is the solid foundation reinforcement according to the first aspect of the present invention. In the joint portion 10A having an interval larger than the interval between the vertical and horizontal reinforcing bars forming the lattice shape of the adjacent sheet-like welded meshes 10, 10, the sheet-shaped welded mesh 10, which is adjacent to the substantially central portion in the longitudinal direction of the joint portion 10A, 10 adjacent reinforcing bars 11A, 1
An auxiliary reinforcing bar 15 is arranged parallel to 1A.

In the above description, it is preferable to use the same member as the vertical and horizontal reinforcing bars constituting the sheet-like welded wire mesh as the auxiliary reinforcing bar. However, the present invention is not limited to this, and a pipe member or a thick plate may be used. Good. In the present invention as described above, even if the interval between the joint portions of the adjacent sheet-like welded metal meshes is large, the strength is increased because they are connected by the auxiliary reinforcing bar.

As shown in FIG. 3, the reinforcing wire for solid foundation construction according to claim 3 of the present invention is the same as the reinforcing wire for solid foundation construction according to claim 1 or 2, wherein
The reinforcing bar 10B at the end on the side of the rising portion 1C constituting the zero solid foundation 1 is bent in an L shape along the rising portion 1C. In such an embodiment of the present invention, since the reinforcing bar is also arranged in the rising portion of the foundation, the strength of the rising portion is increased.

According to a fourth embodiment of the present invention, as shown in FIG. 4, the solid foundation 1 ′ is for a carport having an upper surface 1 D ′ having the same height as the ground surface 2. It is characterized by having. In the present invention, a plurality of sheet-like welded metal meshes are arranged in a solid foundation whose upper surface is at the same height as the ground surface, and reinforcing bars are also arranged in the rising portions, so that the foundation has high strength. , Carport foundation can be easily constructed. Also, since the upper surface is at the same height as the ground surface, it is easy for vehicles to enter and exit.

The method for constructing a solid foundation according to the fifth aspect of the present invention will be described with reference to the drawings. As shown in FIG. 3, the construction of a solid foundation on which a structure 50 such as a building is installed on the upper surface is shown. A method, comprising: arranging a formwork;
(3) The reinforcing bars (5) for solid foundation work described in (1) to (3) are arranged at predetermined positions, and thereafter, a concrete slurry is poured into a formwork.

[0014] In the present invention, one end of each of the adjacent sheet-like welded meshes is placed on the solid foundation construction reinforcing bar and connected to each other, so that the adjacent sheet-like welded meshes are connected to each other. Can be easily connected, and the workability of construction is improved. In addition, since the reinforcing bars for solid foundation construction have a function of connecting adjacent sheet-like welded metal meshes to each other in addition to a function of separating adjacent sheet-like welded metal meshes from a surface to be installed by a predetermined dimension, both sheet-like welded metal meshes are connected. It is not necessary to separately provide a connection wire mesh for connecting the welded wire meshes, and the number of standing parts can be reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. As shown in FIGS.
The foundation of the present embodiment is a solid foundation 1 formed with a foundation slab 1B continuous to the thickness of the footing part 1A and a rising part 1C around the foundation slab 1B. On the upper surface of 1C, a building 50 such as a unit-type building or a panel-construction building, which is constructed by combining a plurality of box-like building units, is provided. The upper surface 1 of the foundation slab 1B in the solid foundation 1 is lower than the ground surface 2.

In such a solid foundation 1, a sheet-like welded wire mesh 10 which is supported by a spacer or the like (not shown) and constitutes a reinforcement 5 for solid foundation construction is arranged. That is, as shown in FIG. 2, the sheet-like welded wire mesh 10 is formed by welding the reinforcing bars 11 and 12 extending vertically and horizontally in a rectangular grid shape in which one direction is closer to each other than the other direction. I have. The ends of the reinforcing bars 11 and 12 of the welding wire mesh 10 are
As shown in FIGS. 1 and 3, an extension 10 </ b> A is formed which extends to another sheet-like welded metal mesh side 10 which is arranged adjacently.

Therefore, as shown in FIG. 1, when placed on the solid foundation 1 having the rising portions 1C in two orthogonal directions, the ends of the sheet-like welded metal meshes 10, 10 which are arranged adjacent to each other are opposed to each other. Extensions 10A, 10A
As shown in FIG. 3, the overlapped portions 10A and 10A are bound together by a binding member 13 such as a wire, and the sheet-like welded mesh side 10, which is adjacently arranged, 10 are connected to each other. That is, the extension 10A constitutes a joint.

Of the extending portions 10A of the sheet-like welding wire net 10, an extending portion 10B on the rising portion 1C side of the foundation 1 forms an L-shaped portion bent along the rising portion 1C. In addition, as shown in FIG.
The spacing between the opposing reinforcing bars 11A of the sheet-like welded meshes 10 and 10 along the reinforcing bars 12 forming the rectangular longitudinal direction of the lattice is a distance between the reinforcing bars 11 in each sheet-like welded mesh 10 (1 and 12). (The long side of the lattice), the auxiliary reinforcing bar 15 similar to the reinforcing bar 11 is provided between the opposing reinforcing bars 11A in order to secure the strength of the connecting portion.
Is spanned. The auxiliary reinforcing bar 15 is constructed such that, after binding the joint portions 10A of the sheet-like welded wire meshes 10, 10, the auxiliary reinforcing bar 15 is bridged and welded.

It should be noted that in FIG.
Although 0 and 10 are described as having slight steps formed in the upper and lower portions, steps are provided for convenience in order to represent the extended portions 10A. Actually, each of the sheet-like welding nets 10, 10 is provided in the same plane. Therefore, the auxiliary reinforcing bar 15 is placed horizontally on each extension 10A of each of the sheet-like welded metal meshes 10, 10.

Of the reinforcing bars 11 and 12 arranged in a lattice,
The spacing between the opposing reinforcing bars 12A of the sheet-like welding meshes 10 and 10 along the reinforcing bars 11 forming the rectangular short side direction of the lattice is determined by the spacing between the reinforcing bars 12 in each sheet-like welding mesh 10 (the shorter side of the lattice). ) Is almost the same as
The auxiliary reinforcing bar 15 is not provided.

Next, the reinforcement 5 for the solid foundation as described above is used.
The construction method of the solid foundation 1 using the method will be described. First, after providing a method for displaying the position, height, width, depth, and the like of the building 50, root cutting for the solid foundation 1 is performed. Next, a formwork is installed, and a plurality of sheet-like welded metal meshes 10 are attached inside the formwork via a spacer or the like. At this time, the adjacent sheet-like welded metal meshes 10, 10 are overlapped with each other at the extending portions 10A,
It is bound by the binding member 13. Then, the auxiliary reinforcing bar 15 is attached between the reinforcing bars 11A having a large interval between the adjacent sheet-like welded metal meshes 10, 10.

On the side of the rising portion 1C of the foundation 1, a sheet-like welding wire mesh 10 having an end portion bent in an L-shape in advance along the rising portion 1C is arranged. Thereafter, for example, concrete slurry is poured into a mold for the base slab 1B (including the footing portion 1A), and when the foundation slab 1B is solidified, the mold for the rising portion 1C is attached to the foundation slab 1B.
The concrete slurry is cast into the formwork. Then, the top level of the rising portion 1C of the solid foundation 1 is adjusted, and leveling is performed in parallel with the adjustment.

According to this embodiment, the following effects can be obtained. In order to connect the sheet-like welded meshes 10, 10, the extending portions 10A of the welded wire meshes 10, 10 may be overlapped with each other, and the portions may be bound by the binding member 13. In the present embodiment, since only one binding is required for each extension portion 10A, the binding operation is halved as compared with the conventional binding at two locations, so that the adjacent sheet-like welded meshes 10, 10 are connected to each other. Connection can be made in a short time.

In order to connect the sheet-like welded meshes 10, 10, the extending portions 10A of the welded wire meshes 10, 10 are overlapped with each other, and the portions are bound by a binding member 13. Therefore, a conventional connecting wire mesh is not required for connecting the welding wire meshes 10 and 10, thereby reducing the number of members.

At the joint portion 10A of the adjacent sheet-like welded wire meshes 10, 10, the reinforcing bars 11, 1
Since the auxiliary reinforcing bar 15 is bridged at a portion wider than the interval 2, the auxiliary reinforcing bar 15 reinforces the portion having a wide interval, thereby securing the strength of the connecting portion.

The extending portion 1 of the sheet-like welded mesh 10 on the side of the foundation rising portion 1C of the sheet-like welded mesh 10 is used.
OB is bent and formed in an L-shape, and is disposed so as to extend into the rising portion 1C, so that the strength of the rising portion 1C can be secured. In the solid foundation 1, a plurality of sheet-like welded metal meshes 10 formed by welding reinforcing bars 11, 12 extending in length and width in a lattice shape.
Is disposed, the strength of the entire foundation is ensured, and thus it can be used as a foundation for, for example, a three-story building.

Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the same structures and the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified. The solid foundation 1 'of this embodiment is a carport foundation. Therefore, the foundation slab 1 in the solid foundation 1 '
The upper surface 1D 'of B is on the same line as the ground surface 2, and the thickness of the foundation slab 1B of the solid foundation 1' is larger than the thickness of the foundation slab 1B of the first embodiment. ing. As described above, the upper surface 1D 'of the base slab 1B and the ground surface 2 are on the same line, so that the vehicle can enter and exit smoothly. A carport building 51 is provided on the upper surface of the rising portion 1C.

In this embodiment as well, the same effects as those described above can be obtained, and a plurality of sheet-like welding nets 10 are arranged inside so that the thickness of the base slab 1B is increased. Since the concrete slurry may be cast, the construction of the carport foundation is facilitated.

The present invention is not limited to the above embodiments, but includes the following modifications as long as the object of the present invention can be achieved. For example, in each of the above embodiments, the sheet-like welded wire mesh 10 is formed by assembling the vertical and horizontal rebars 11 and 12 in a rectangular lattice shape.
However, the present invention is not limited to this, and may be formed in a form of a square lattice. Even in this case, the same effects as those described above can be obtained.

[0030]

As described above, according to the reinforcement for solid foundation construction and the method for constructing the solid foundation according to the present invention, in order to connect the sheet-like welded meshes, the joints of the respective welded meshes are overlaid. What is necessary is just to wrap and to bind that part with a binding member. Since only one bundling is required for each joint, the bundling operation is halved as compared with the conventional two-bundling, so that the connection between adjacent sheet-like welded nets can be performed in a short time. As a result, the workability of the foundation can be improved. Further, in order to connect the respective sheet-like welded meshes, the joint portions of the respective welded meshes may be overlapped with each other, and the portions may be bound by a binding member. Therefore, the conventional connection wire mesh is not required for connecting the weld wire meshes, and the number of members can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a sheet-like welding wire net is arranged on a solid foundation according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a sheet-like welded wire mesh of the present embodiment.

FIG. 3 is a longitudinal sectional view showing a state in which a sheet-like welded metal mesh is arranged on the solid foundation of the embodiment.

FIG. 4 is a longitudinal sectional view showing a state in which a sheet-like welded wire mesh is arranged on a solid foundation according to a second embodiment of the present invention.

FIG. 5 is a plan view showing a state in which a sheet-like welded metal mesh is arranged on a conventional solid foundation according to the present invention.

FIG. 6 is a diagram showing a joining state of a conventional sheet-like welded wire mesh.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 solid foundation 1B foundation slab 5 reinforcement for construction of solid foundation 10 sheet-like welded wire mesh constituting reinforcement for construction of solid foundation 10A extension part (joint part) 10B L-shaped part of extension part 11 longitudinal reinforcement 12 horizontal reinforcement 13 Binding member 15 Auxiliary reinforcing bar

Claims (5)

[Claims] Claims: 1. A solid reinforcement for a solid foundation constructed by combining a plurality of sheet-like welded meshes formed by welding reinforcing bars extending vertically and horizontally in a lattice shape, wherein the sheet-like welded meshes are adjacent to each other. The reinforcing bar at the end on the side of the other sheet-shaped welded wire mesh extends to the other sheet-shaped welded wire mesh side, overlaps with the end of the sheet-shaped welded wire mesh, and joins adjacent sheet-shaped welded wire meshes. A joint arrangement, wherein the joints are bound by a binding member. 2. The joint reinforcement according to claim 1, wherein the joints are arranged at intervals larger than the interval between the vertical and horizontal reinforcing bars forming the lattice shape of the adjacent sheet-like welded wire mesh among the joints. , An auxiliary reinforcing bar is disposed at a substantially central portion in a longitudinal direction of the joint portion in such a manner as to be parallel to an adjacent reinforcing bar of the adjacent sheet-like welded wire netting. 3. The reinforcing bar for solid foundation according to claim 1 or 2, wherein the reinforcing bar at the end of the sheet-like welded metal mesh on the rising portion side constituting the solid foundation extends along the rising portion. Reinforcement for solid foundation construction characterized by being bent into an L shape. 4. The solid foundation reinforcement according to claim 1, wherein said solid foundation is for a carport having an upper surface flush with a ground surface. Reinforcement for construction. 5. A method for constructing a solid foundation on which a structure such as a building is installed on an upper surface, wherein a formwork is arranged and the reinforcement for solid foundation construction according to any one of claims 1 to 3 is provided. A method for constructing a solid foundation, comprising arranging a concrete slurry in the formwork and then placing a concrete slurry into the formwork.