JP2968714B2 - Assembled reinforcing bar unit for reinforcing openings in foundation reinforcing frames - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar unit for reinforcing an opening used for reinforcing a periphery of an opening for a ventilation opening, an inspection opening and the like formed in a basic reinforcing steel frame for a house.

[0002]

2. Description of the Related Art A cloth foundation made of cast-in-place reinforced concrete is used as a foundation for a house. The cloth foundation is
It has a base portion and a rising portion which rises vertically from the base portion, and these are continuously arranged along the lower side on the lower side of the outer peripheral wall, the inner partition wall and the like. Therefore, in order to form a ventilation port, an inspection port, and the like, it is necessary to open a ventilation or inspection opening in the rising portion. When an opening is formed, the strength of that portion is reduced, so that it is necessary to arrange a reinforcing steel bar or the like to reinforce.

[0003] Conventionally, a reinforcer cuts a portion of a reinforcing bar frame where an opening is located, and surrounds the formed opening.
Reinforcing reinforcing bars are arranged vertically, horizontally, and diagonally, and are connected by tying bars and the like.

[0004]

In order to save labor and shorten the construction period of foundation reinforcing work, in recent years, a rebar frame for a fabric foundation produced at a factory has been carried into a construction site, and these have been removed. A construction method of arranging reinforcing bars on a cloth foundation by arranging them at designated positions and connecting them to each other has been adopted.
According to such a reinforcing arrangement method, it is possible to accurately arrange the basic reinforcing bars without any skill and with a simple operation.

[0005] It is an object of the present invention to further improve the efficiency of the work of arranging a fabric foundation using such a steel bar produced in a factory.

[0006]

In order to do so, it is necessary that the reinforcement of the reinforcing steel around the opening, such as for ventilation and inspection, formed at the rising portion of the fabric foundation can be accurately arranged by a simple operation. There is. In the present invention, focusing on this point,
The reinforcing rebar unit for reinforcement having the following configuration is produced in a factory in advance, and it is arranged at the construction site only around the formed opening so that the reinforcement around the opening can be completed.

That is, an opening reinforcing reinforcing bar unit used to reinforce the periphery of an opening such as a ventilation opening or an inspection opening formed in a rising reinforcing bar frame arranged at a rising portion of a reinforcing bar for a cloth foundation of the present invention is horizontal. A lower reinforcing bar extending to
The left rebar and the right rebar, the lower ends of which are spot-welded at both sides of the lower rebar and extending vertically upward, and the lower rebar is spot-welded at the lower end thereof and the left rebar is A left oblique reinforcing bar that crosses and extends diagonally upward and spot-welded to the left reinforcing bar, and a lower end side that is spot-welded to the lower reinforcing bar and crosses the right reinforcing bar and extends diagonally upward to extend the right reinforcing bar; A right diagonal reinforcing bar spot-welded to the rising reinforcing bar frame so that the lower reinforcing bar, the left reinforcing bar and the right reinforcing bar are located below and on both sides of the opening formed in the rising reinforcing bar frame, respectively. It is characterized by being attached and used.

[0008] The periphery of the opening can be reinforced by a simple operation of simply attaching the opening reinforcing bar unit having the above structure to the periphery of the opening formed in the rising reinforcing frame arranged at the rising portion of the cloth foundation. . Therefore, no special skill is required, and since the unit is a factory-produced standard product, reinforcement can always be performed accurately.

Here, the portion where the opening is formed may be located near the corner portion of the fabric base. In this case, there is often no room for disposing the oblique reinforcing bar on the side near the corner. In this case, an opening reinforcing reinforcing unit having the following configuration may be employed. That is, a right diagonal reinforcing bar or a left diagonal reinforcing bar near the corner side is prepared as a separate object. The oblique reinforcing bar prepared separately has an upper half bent at a right angle so that it can be arranged along the corner. If an oblique reinforcing bar having this shape is used, even when an opening is located near the corner portion, the oblique reinforcing bar can be arranged, so that sufficient reinforcement can be realized.

On the other hand, when an opening is formed in a portion of the cloth foundation having an extremely short span, there is a case where there is no room for disposing the diagonal reinforcing bars on both the right and left sides. In this case, an opening reinforcing reinforcing unit having the following configuration may be employed. That is, the left and right diagonal reinforcing bars are prepared as separate objects. These oblique reinforcing bars have a shape in which an upper half portion is bent at a right angle. If the diagonal reinforcing bar having this shape is used, the diagonal reinforcing bar can be arranged on both sides of the opening formed in the portion of the cloth foundation having a very short span, so that sufficient reinforcement can be realized.

On the other hand, the present invention relates to a reinforcing bar unit for a cloth foundation to which the above-mentioned structure is reinforced, and the unit is a base reinforcing frame arranged at a base portion and a rising portion of a reinforcing bar for a cloth foundation. And a rising reinforcing frame, and these base reinforcing frames and rising reinforcing frames are
Each of the reinforcing bars is constituted by a vertical reinforcing bar extending in parallel with the longitudinal direction and a horizontal reinforcing bar joined to the reinforcing bars at a predetermined interval, and one end of the vertical reinforcing bar is fixed to the horizontal reinforcing bar by a predetermined length. It is characterized by protruding only.
If a unit having this configuration is used, when the units are connected to each other in an L-shape or T-shape, only the rebar located inside is overlapped. Therefore, there is an advantage that the leveling of both units becomes easy.

[0012]

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

FIG. 1 shows an example of a reinforcing frame for a fabric foundation to which the present invention can be applied. As shown in this figure, a reinforcing bar frame (unit) 1 for a cloth foundation includes a base reinforcing frame 2 arranged at a base portion, and a rising reinforcing bar frame 3 arranged at a rising portion standing upright from the center. It is composed of

On one end side of the reinforcing bar frame 1, the stirrup 33a of the rising reinforcing bar frame 3 and the horizontal bar 21a of the base reinforcing bar frame 2 are attached. However, on the opposite end, the stirrups 3
The main bars 31, 34 protrude up and down by a certain length L from 3b. In the base streak frame 2 as well, the left and right reinforcing bars 22, 23 protrude from the horizontal streak 21b by the same length L. These protrusion amounts are the same as the pitches of the stirrups and the transverse streaks, for example.

By arranging the reinforcing frame 1 of this configuration in accordance with the basic plan view and connecting the adjacent reinforcing frames to each other via joint bars, it is possible to perform the reinforcing work of the cloth foundation.

When the reinforcing bar frame having the above configuration is arranged, the reinforcing bar at the portion where the inspection or ventilation opening is located is cut to form such an opening portion in the reinforcing bar frame. For example, the rising reinforcing bar frame 3 in the portion where the opening is located
The upper main muscle 31 and the abdominal muscle 32 are cut by a required width. The stirrups 33 extending vertically at regular intervals are also cut by the required number.

FIGS. 2A and 2B show a reinforcing bar unit for openings according to a first embodiment of the present invention. The reinforcing reinforcing bar unit for opening 10 has a lower reinforcing bar 11 extending horizontally, and lower ends 12 a and 13 a spot-welded at positions on both sides of the lower reinforcing bar 11, and extends vertically upward. The lower end of the left reinforcing bar 12 and the right reinforcing bar 13 is spot-welded to the lower reinforcing bar 11 and extends obliquely upward at an angle of 45 degrees across the left reinforcing bar 12, and is left spot-welded to the left reinforcing bar 12. A diagonal reinforcing bar 14 and a right diagonal reinforcing bar 15 whose lower end is spot-welded to the lower reinforcing bar 11, extends obliquely upward at an angle of 45 ° across the right reinforcing bar 13, and spot-welded to the right reinforcing bar 13. have.

The lower reinforcing bar 11 has five auxiliary reinforcing bars 111 attached at regular intervals in the center thereof and extends vertically downward.
2 is spot-welded. Left and right reinforcing bars 1
The reference numerals 2 and 13 each have an inverted-L shape including vertical portions 121 and 131 and horizontal portions 122 and 132 which are bent at right angles in a direction spreading right and left from the upper ends thereof.

On the other hand, the left oblique reinforcing bar 14 has an inclined portion 141.
And a horizontal portion 142 continuous with the lower end thereof. The horizontal portion 142 at the lower end is welded to the horizontal reinforcing bar 112. The inclined portion 141 extends across the vertical portion 121 of the lower reinforcing bar 11 and the left reinforcing bar 12, and is spot-welded at each of the crossing portions. The upper end of the inclined portion 141 is connected to the horizontal portion 122 of the left reinforcing bar 12.
The spot is welded to the tip. The right oblique reinforcing bar 15
The left oblique reinforcing bar 14 has a symmetrical shape. That is, it has an inclined portion 151 and a horizontal portion 152 continuous with the lower end thereof. The lower horizontal portion 152 is welded to the horizontal reinforcing bar 112. The inclined portion 151 extends across the vertical portion 131 of the lower reinforcing bar 11 and the right reinforcing bar 13, and is spot-welded at each of the crossing portions. The upper end of the inclined portion 151 is the right reinforcing bar 1
3 is spot-welded to the tip of the horizontal portion 132.

FIG. 2 (C) shows an example of reinforcing the opening using the reinforcing bar unit 10 having the above structure. As shown in this figure, the portion where the opening is located is cut off by the width required by the abdominal muscles 32 of the rising reinforcing bar frame 3. The stirrups 33 extending vertically at regular intervals are also cut by the required number (three in the illustrated example). In the figure, broken abdominal muscles and stirrups are indicated by broken lines. Thus, a portion corresponding to the opening is formed.

With respect to the opening thus formed,
An opening reinforcing reinforcing bar unit 10 is attached. That is, the lower reinforcing bar 11, the left reinforcing bar 12, and the right reinforcing bar 13 are attached to the rising reinforcing bar frame such that the lower reinforcing bar 11, the left reinforcing bar 12, and the right reinforcing bar 13 are located below and on both sides of the opening 5 opened in the rising reinforcing bar frame. The attachment and fixation are performed using, for example, a tying muscle. As described above, if the reinforcing bar unit 10 for opening reinforcement of this example is simply attached and fixed to the portion of the opening 5, reinforcement reinforcing arrangement around the opening is completed. Therefore, the reinforcement arrangement work can be performed extremely easily as compared with the conventional reinforcement arrangement work. Moreover, since the reinforcing bar unit 10 is factory-produced, there is no problem such as insufficient reinforcement because the reinforcing bar unit 10 is reinforced using a small-diameter reinforcing bar.

Next, FIGS. 3A and 3B show a reinforcing bar unit for reinforcing openings according to a second embodiment of the present invention. The reinforcing reinforcing bar unit 20 shown in this figure is used when there is no room for disposing a diagonal reinforcing bar because an opening is formed near the corner.

The basic structure of the reinforcing bar unit 20 is the same as that of the reinforcing bar unit 10 described above.
Corresponding parts are denoted by the same reference numerals. The difference is that the left oblique reinforcing bar 14 is not attached integrally, and a hook-shaped portion 123 that bends in a hook shape and has a tip side hanging downward instead of the horizontal portion 122 is provided above the left reinforcing bar 12. It is a point that has been formed.

When using the reinforcing bar frame unit 20, an oblique reinforcing bar 24 having a shape as shown in FIG. 3C is used. The diagonal reinforcing bar 24 includes an inclined portion 241 and a horizontal portion 242 that is continuous below the inclined portion 241.
Above the inclined portion 241, the horizontal portion 2
43 are formed. However, this horizontal part 243
Is bent in a direction perpendicular to the plane where the inclined portion 241 and the horizontal portion 242 are located.

FIG. 3 (D) shows an example of reinforcing the opening by the reinforcing bar unit 20 having the above-described structure. As shown in the figure, the opening 5 is located on the side of the reinforcing bar frame 3A near the corners of the rising reinforcing bar frames 3A and 3B forming the L-shaped corner portion. Therefore, FIG.
Even if the reinforcing reinforcing bar unit 10 having the shape shown in (A) is to be mounted, there is no room for disposing the left oblique reinforcing bar 14 of an integrated structure. However, the reinforcing bar unit 20 of the present embodiment is
The left oblique reinforcing bar 14 is not integrally attached. Therefore, it can be attached around the opening 5 as shown in the figure.

Here, since the left oblique reinforcing bar 14 is omitted, reinforcement of the left side of the opening 5 is insufficient. But,
In this example, the left oblique reinforcing bar 24 having the shape shown in FIG. 3C is used as a pair. This left oblique reinforcing bar 24
The upper end of the inclined portion is bent at a right angle and extends horizontally. Therefore, the horizontal portion 243 may be arranged so as to extend along the side surface of the reinforcing bar frame 3B. With this arrangement, the left side of the opening 5 is also reinforced sufficiently because the inclined portion 241 of the left oblique reinforcing bar 24 is located.

The position of the opening 5 is, conversely,
It may be near the right corner. In this case, as shown in FIG. 4, a unit 30 having a symmetrical structure with the reinforcing bar unit 20 may be used. Also,
The left diagonal reinforcing bar 24 may be a right diagonal reinforcing bar having a symmetrical shape.

FIGS. 5A and 5B show an example of an opening reinforcing bar unit 50 used when there is no room for reinforcing the diagonal reinforcing bars on the left and right sides of the opening 5. The reinforcing bar unit 50 includes a left reinforcing bar 12 and a right reinforcing bar 13.
In both cases, hook-shaped portions 123 and 133 are formed on the upper portions thereof, and left and right oblique reinforcing bars 14 and 15 are omitted. Other structures are the same as those in the above examples.

The reinforcing bar unit 50 is used together with the left oblique reinforcing bar 24 and the right oblique reinforcing bar 54 having the shapes shown in FIGS. 5C and 5D. The right oblique reinforcing bar 54 has a symmetrical shape with respect to the left oblique reinforcing bar, and includes an inclined portion 541, a lower horizontal portion 542, and an upper horizontal portion 543 which is bent in a direction orthogonal to the upper right angle.

As shown in FIG. 5 (E), in the case of an arrangement in which the reinforcing steel frames 3B and 3C are connected to both sides of the basic reinforcing steel frame 3A having a very short span in a direction perpendicular to the basic reinforcing steel frame 3A, respectively. When the opening portion 5 is formed, the left and right diagonal reinforcing bars cannot be arranged because there is almost no margin on the left and right sides. However, if the left diagonal reinforcing bar 24 and the right diagonal reinforcing bar 54 are used as in this example, the diagonal reinforcing bars 24, 5A and 5B extend along the reinforcing bar frames 3B and 3C orthogonal to the reinforcing bar frame 3A, respectively.
4 can be arranged. Therefore, even in such a case, it is possible to sufficiently reinforce the opening by arranging the oblique reinforcing bars on the left and right.

Next, FIG. 6 shows another example of the opening reinforcement using the reinforcing bar units 20 and 30 for opening reinforcement shown in FIGS. As shown in this drawing, when the base reinforcing frame 3C is connected to the base reinforcing frame 3A in a T shape, opening portions 5A and 5B may be formed on both sides of the base reinforcing frame 3C, respectively. . In this case, the reinforcing rebar units 20 and 30 may be mounted symmetrically. However, in this case, since there is no room in the central portion, the left diagonal reinforcing bar of one reinforcing bar unit 20 and the right diagonal reinforcing bar of the other reinforcing bar unit 30 cannot be arranged. In this example, an oblique reinforcing bar 65 having the shape shown in FIG. 6B is used. The diagonal reinforcing bar 65 is formed by bending the center into a mountain shape to form left and right inclined portions 651 and 652. Horizontal portions 653 and 654 are formed continuously from the lower ends of these inclined portions 651 and 652, respectively.

As shown in FIG. 6A, the oblique rebar 65 of this shape is disposed between the rebar units 20 and 30 so as to be symmetrical. As a result, reinforcement by diagonal reinforcing bars is performed by the left and right inclined portions 651 and 652. Therefore, reinforcement of the opening in such a portion is sufficient.

[0033]

As described above, according to the present invention, a reinforcing bar for reinforcing an opening is unitized in advance,
This is attached to the opening to reinforce the opening. Therefore, according to the present invention, it is not necessary to attach a large number of reinforcing reinforcing bars vertically, horizontally, or diagonally to realize opening reinforcement, so that reinforcing reinforcement can be arranged in a short time without skill. Can be. In addition, since the unit is factory-produced, there is no such thing as the reinforcing steel diameter for reinforcement is too small to provide sufficient reinforcement.
It is possible to always achieve appropriate reinforcement reinforcement.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a reinforcing frame for a cloth foundation to which the present invention can be applied.

FIGS. 2A and 2B are a plan view and a side view showing an example of a reinforcing bar unit for reinforcing an opening, and FIG. 2C is an explanatory diagram showing an example of reinforcing an opening.

3A and 3B are a plan view and a side view showing an example of a reinforcing bar unit for opening reinforcement; FIG. 3C is an explanatory diagram showing an example of a left oblique reinforcing bar used together with the reinforcing unit for opening; (D) is an explanatory view showing an example of opening reinforcement.

FIGS. 4A and 4B are a plan view and a side view showing a modification of the reinforcing bar unit for opening reinforcement shown in FIG. 3;

5A and 5B are a plan view and a side view showing an example of a reinforcing bar unit for opening reinforcement, and FIGS. 5C and 5D.
FIG. 4 is a perspective view of a left oblique reinforcing bar and a right oblique reinforcing bar used together with the opening reinforcing bar unit, and FIG.

FIG. 6A is an explanatory view showing another example of the opening reinforcement example;
(B) is a top view which shows the example of the diagonal reinforcement used at the time of the said opening reinforcement.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Reinforcement frame for fabric foundation 2 Base reinforcement frame 3, 3A, 3B, 3C Stand-up reinforcement frame 5, 5A, 5B Opening portion 10 Reinforcement unit for opening reinforcement 11 Lower reinforcement 12 Left reinforcement 13 Right reinforcement 14 Left oblique reinforcement 15 Right diagonal reinforcing bar 20 Reinforcing bar unit for opening reinforcement 24 Left diagonal reinforcing bar 30 Reinforcing bar unit for opening reinforcement 50 Reinforcing bar unit for opening reinforcement 54 Right diagonal reinforcing bar

Claims (3)

(57) [Claims] An opening reinforcing reinforcing bar unit used to reinforce the periphery of an opening such as a ventilation opening and an inspection opening formed in a rising reinforcing bar frame arranged at a rising portion of a reinforcing bar for a cloth foundation, comprising: It has a lower reinforcing bar extending and a left reinforcing bar and a right reinforcing bar whose lower ends are spot-welded at positions on both sides of the lower reinforcing bar and extend vertically upward, and are opened to the rising reinforcing bar frame. The lower reinforcing bar, the left reinforcing bar, and the right reinforcing bar are located on the lower side and both sides of the opening, respectively, so that the lower reinforcing bar is used by being attached to the rising reinforcing bar frame. A left diagonal reinforcing bar that crosses and extends diagonally upward, and a right diagonal reinforcing bar that crosses the right reinforcing bar and extends diagonally upward from the lower reinforcing bar. Half portions,
The lower reinforcing bar and the left and right reinforcing bars are bent at right angles in opposite directions to a plane on which the left and right reinforcing bars are located, and are respectively connected to the lower reinforcing bar and the left and right reinforcing bars using binding wires or the like. An assembling unit for reinforcing an opening in a base reinforcing frame, characterized in that the opening is strengthened. 2. An opening reinforcing reinforcing bar unit used to reinforce the periphery of an opening such as a ventilation opening and an inspection opening opened near a corner portion of a rising reinforcing bar frame arranged at a rising portion of a reinforcing bar for a cloth foundation. A lower reinforcing bar extending horizontally, a left reinforcing bar and a right reinforcing bar having lower ends spot-welded at positions on both sides of the lower reinforcing bar and extending vertically upward, and the lower reinforcing bar. The lower end side is spot-welded and extends diagonally upward while crossing the left reinforcing bar, and has a left oblique reinforcing bar spot-welded to the left reinforcing bar. The lower reinforcing bar, the left reinforcing bar, and the right reinforcing bar are located on both sides, and are used by attaching to the rising reinforcing bar frame. A right diagonal reinforcing bar that can be attached in a state of crossing the right reinforcing bar and extending diagonally upward, wherein an upper half portion of the right diagonal reinforcing bar is in a direction perpendicular to a plane where the lower reinforcing bar and the left reinforcing bar are located; An assembling unit for reinforcing an opening in a base reinforcing frame, wherein the lower reinforcing bar and the left reinforcing bar are connected to each other by using a binding bar or the like. 3. An opening reinforcing reinforcing bar unit used to reinforce the periphery of an opening such as a ventilation opening or an inspection opening opened near a corner portion of a rising reinforcing bar frame arranged at a rising portion of a reinforcing bar for a cloth foundation. A lower reinforcing bar extending horizontally, a left reinforcing bar and a right reinforcing bar having lower ends spot-welded at positions on both sides of the lower reinforcing bar and extending vertically upward, and the lower reinforcing bar. The lower end side is spot-welded and extends diagonally upward while crossing the right reinforcing bar, and has a right diagonal reinforcing bar spot-welded to the right reinforcing bar. The lower reinforcing bar, the left reinforcing bar, and the right reinforcing bar are located on both sides, and are used by attaching to the rising reinforcing bar frame. It has a left diagonal reinforcing bar that can be attached in a state of extending diagonally upward across the left reinforcing bar, and an upper half portion of the left diagonal reinforcing bar is in a direction perpendicular to a plane where the lower reinforcing bar and the right reinforcing bar are located. An assembling unit for reinforcing an opening of a basic reinforcing bar frame, wherein the lower reinforcing bar and the right reinforcing bar are connected to each other by using a binding bar or the like.