JPH0823149B2 - Anchor frame Reinforcing bar cage with reinforcement - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebar cage for a foundation having anchor frame rebars used when constructing a foundation of a structure.

[0002]

2. Description of the Related Art Conventionally, as a basic reinforcing bar having an anchor frame, as shown in FIGS. 11 to 16, a basic reinforcing bar cage 14 and an anchor frame 16 having anchor bolts 15 for supporting columns are separately manufactured. What you have done is known. When fixing the anchor frame 16, abandoned concrete 18 is placed so as to surround the foundation pile 17, and a lower portion of the anchor bolt 19 is embedded in the discarded concrete 18 to surround the foundation pile 17 and anchor. The frame 16 is arranged, and the seat plate 20 attached to the lower end of the anchor frame 16 is fixed to the discarded concrete 18 by the anchor bolts 19. After fixing the anchor frame 16,
As shown in FIG. 12, the base rebar cage 14 surrounding the anchor frame 16 is arranged, and the base rebar cage 14 is arranged.
After fixing the formwork 21 surrounding the concrete on the concrete 18, and then placing the foundation concrete 22 in the formwork 21 and curing the foundation concrete 22, as shown in FIG. The lower end plate 24 at the lower end of the column 23 is fixed to the foundation concrete 22 by.

[0003]

In the case of the basic reinforcing bar cage having the conventional anchor frame, the basic reinforcing bar cage 1 is used.
Since the anchor frame 4 and the anchor frame 16 are manufactured separately, their installation work is complicated, and the manufacturing cost and the transportation cost are high. Further, since it is necessary to make the reinforcing bar cage 14 larger than the anchor frame 16, the reinforcing bar cage 14 becomes large and the manufacturing cost and the transportation cost increase, and further, the anchor frame 1 surrounds the foundation pile 17.
When 6 is installed, there is a problem that the rebar cage 14 becomes significantly large.

[0004]

In order to advantageously solve the above-mentioned problems, in a basic rebar cage having an anchor frame rebar of the first invention, a cage rebar 2 constituting a rebar cage 1 is provided.
A plurality of gate-shaped anchor frame rebars 3 with a larger diameter than
The upper horizontal rebars 4 of the gate-shaped anchor frame rebar 3 are arranged so as to cross each other in a cross shape at the upper center of the rebar cage 1, and the upper horizontal rebars 4 and leg rebars 5 of the portal frame 3 are rebar cage 1. The anchor bolt supporting plate mounting holding member 6 is fixed to the middle portion of the upper horizontal reinforcing bar 4 by welding, and the seat plate 8 is attached to the lower part of the leg reinforcing bar 5 via the screw type level adjusting device 7. . Further, in the basic rebar cage having the anchor frame rebar of the second invention, a plurality of portal anchor frame rebars 3 having a diameter larger than that of the basket rebar 2 constituting the rebar basket 1 are provided in the portal anchor frame rebar 3. The upper horizontal rebars 4 are arranged so as to cross each other in a cross shape at the upper center of the rebar cage 1, and the upper horizontal rebars 4 and the leg rebars 5 in the portal anchor frame rebar 3 are connected to the rebar basket 1 to form the upper horizontal rebars. Anchor bolt support plate mounting holding member 6 is fixed to the intermediate portion of 4 by welding, and a seat plate 8 is attached to the lower portion of the leg rebar 5 via a screw type level adjusting device 7, and an anchor bolt insertion through hole 9 is formed. Anchor bolt support plate 10 having the above is placed on the holding member 6, and the holding member 6 and the anchor bolt support plate 10 have elongated holes 11 and 1 extending in directions intersecting with each other.
2 is provided, and the holding member 6 and the anchor bolt support plate 10 are fastened and coupled by a bolt 13 inserted into each of the long holes 11 and 12.

[0005]

1 to 3 show a basic rebar cage having anchor frame rebars according to an embodiment of the first invention, having a diameter larger than that of a cage bar 2 constituting a circular cage 1. Two gate-shaped anchor frame rebars 3 and upper horizontal rebars 4 in the gate-shaped anchor frame rebar 3 are rebar cages 1.
Are arranged so as to cross in the shape of a cross at the center of the upper part of the above, and the upper horizontal reinforcing bars 4 and the leg reinforcing bars 5 in each of the portal frame reinforcing bars 3 are fixed to the reinforcing bar cage 1 by welding
On both sides on the diagonal line at the intersection of each upper horizontal reinforcing bar 4,
Anchor bolt support plate mounting holding member 6 made of chevron steel having a long hole 11 extending in the same direction is fixed by welding, and a right-hand screw rod 25 perpendicular to the lower end portion of the leg rebar 5 is fixed by welding. A vertical left screw threaded rod 27 is screwed onto a nut 28 fixed by welding to a seat plate 8 having a hole 26 and fixed by welding, and a double screw nut 29 having a right screw hole and a left screw hole is a right screw screw rod. 25 and the left screw screw rod 27, and the right screw screw rod 25, the left screw screw rod 27, and the screw nuts 29 constitute a screw type level adjusting device 7.

FIG. 4 shows a state in which a foundation reinforcing bar cage having an anchor frame reinforcing bar is placed on and fixed to a waste concrete 18, and the waste concrete 18 is placed so as to surround the upper portion of the foundation pile 17. The reinforcing bar cage 1 having the gate-shaped anchor frame reinforcing bar 3 is placed on the seat plate 8 by means of a concrete nail cast on the discarded concrete 18 or a fixing tool 30 such as a hole-in anchor inserted and locked in the discarded concrete 18. Is fixed to the discarded concrete 18.

FIGS. 5 to 8 show a state in which the anchor bolt support plate 10 supporting the anchor bolts 15 for fixing the column is attached to the holding member 6 for attaching the anchor bolt support plate,
That is, showing the state of the second invention, the anchor bolt support plate 10 placed on the holding member 6 is provided with a long hole 12 extending in a direction orthogonal to the long hole 11 of the holding member 6, The anchor bolt support plate 10 holds the holding member 6 by the bolt 13 inserted through the long holes 11 and 12.
Is fixed so that the horizontal position can be adjusted.

FIG. 9 shows a state in which a foundation concrete 22 is placed in a formwork 21 surrounding the rebar cage 1. FIG. 10 shows a lower end plate 24 of a column 23 placed on the foundation concrete 22 and anchor bolts 15 for fixing the column. By foundation concrete 22
It has been fixed to.

In carrying out the present invention, a lower reinforcing bar is arranged in the lower part of the reinforcing bar cage 1, but the illustration is omitted. The form 21 may be a quadrangle.

[0010]

According to the first aspect of the present invention, a plurality of gate-shaped anchor frame rebars 3 having a diameter larger than that of the cage rebars 2 constituting the rebar cage 1 are provided, and the upper horizontal rebars 4 in the gate-shaped anchor frame rebar 3 are Arranged so as to cross in the shape of a cross in the upper center of the rebar cage 1, the upper horizontal rebars 4 and the leg rebars 5 in the portal frame rebar 3 are connected to the rebar cage 1, and at the middle of the upper horizontal rebar 4. Since the anchor bolt support plate attachment holding member 6 is fixed by welding and the seat plate 8 is attached to the lower portion of the leg rebar 5 via the screw type level adjusting device 7, a base rebar cage having an anchor frame rebar is provided. ,
It can be easily manufactured in a small size and at low cost, and the level and inclination of the reinforcing bar cage 1 can be easily and finely adjusted by the screw type level adjusting device 7. Further, the portal anchor frame reinforcing bar 3 and the reinforcing bar cage 1 Since they are integrally connected, and they are small and lightweight as a whole, it is easy to transport and install the foundation rebar cage having the anchor frame rebar. Further, in the case of the second invention, the anchor bolt support plate 10 having the through hole 9 for inserting the anchor bolt is placed on the holding member 6, and the holding member 6 and the anchor bolt support plate 10 are arranged in a direction intersecting with each other. Slot 11 extending to
Since the holding member 6 and the anchor bolt support plate 10 are tightly coupled to each other by the bolt 13 that is provided with 12 and is inserted into each of the long holes 11 and 12, the anchor bolt support plate that supports the anchor bolts 15 for fixing the column. 10 can be moved in any horizontal direction and fixed by bolts 13.

[Brief description of drawings]

FIG. 1 is a side view showing a base reinforcing bar basket having anchor frame reinforcing bars according to an embodiment of the first invention.

FIG. 2 is a plan view showing a base reinforcing bar basket having anchor frame reinforcing bars according to the embodiment of the first invention.

FIG. 3 is a partially longitudinal side view showing a screw type level adjusting device provided between a lower portion of a leg reinforcing bar and a seat plate.

FIG. 4 is a vertical cross-sectional side view showing a state in which a foundation reinforcing bar cage having anchor frame reinforcing bars according to an embodiment of the first invention is placed and fixed on abandoned concrete.

FIG. 5 is a vertical cross-sectional side view showing a state in which a column fixing anchor bolt is attached to the upper part of the reinforcing bar cage and a form surrounding the reinforcing bar cage is installed.

FIG. 6 is a plan view showing an attachment state of an anchor bolt support plate supporting an anchor bolt for fixing a column.

FIG. 7 is a sectional view taken along line AA of FIG. 6;

8 is a cross-sectional view taken along the line BB of FIG.

FIG. 9 is a vertical cross-sectional side view showing a state in which foundation concrete is placed in a formwork.

FIG. 10 is a partial vertical cross-sectional side view showing a state in which a pillar is placed on and fixed to basic concrete.

FIG. 11 is a partial vertical cross-sectional side view showing a state in which a conventional anchor frame is placed on waste concrete and fixed.

FIG. 12 is a vertical cross-sectional side view showing a state in which a reinforcing steel basket and a formwork are placed on abandoned concrete and basic concrete is placed.

FIG. 13 is a partially longitudinal side view showing a state in which a pillar is placed and fixed on a basic concrete constructed using a conventional anchor frame and a reinforcing bar cage.

FIG. 14 is a plan view showing a conventional anchor frame.

FIG. 15 is a side view showing a conventional anchor frame.

FIG. 16 is a front view showing a conventional anchor frame.

[Explanation of symbols]

 1 Reinforcing Bar Basket 2 Basket Reinforcing Bar 3 Anchor Frame Reinforcing Bar 4 Upper Horizontal Reinforcing Bar 5 Leg Reinforcing Bar 6 Anchor Bolt Support Plate Attachment Holding Member 7 Screw Type Level Adjuster 8 Seat Plate 9 Anchor Bolt Insertion Through Hole 10 Anchor Bolt Support Plate 11 Long hole 12 Long hole 13 Bolt 15 Anchor bolt for fixing columns 17 Foundation pile 18 Discarded concrete 21 Formwork 22 Foundation concrete 23 Pillar 24 Lower end plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigumi Numakura 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation (56) References JP 62-10333 (JP, A) Open 60-246926 (JP, A) Actual flat 2-116536 (JP, U) Actual 63-165338 (JP, U)

Claims (2)

[Claims] 1. A plurality of gate-shaped anchor frame rebars 3 having a diameter larger than that of a cage rebar 2 constituting the rebar cage 1, and an upper horizontal rebar 4 in the gate-shaped anchor frame rebar 3 is located at the upper center of the rebar cage 1. It is arranged so as to cross in a cross shape, and the upper horizontal reinforcing bar 4 and the leg reinforcing bars 5 of the gate-shaped anchor frame reinforcing bar 3 are coupled to the reinforcing bar cage 1, and the anchor bolt supporting plate is attached to the middle part of the upper horizontal reinforcing bar 4. A reinforcing bar basket for a foundation having an anchor frame reinforcing bar in which a holding member 6 is fixed by welding and a seat plate 8 is attached to a lower portion of the leg reinforcing bar 5 via a screw type level adjusting device 7. 2. A plurality of portal anchor frame rebars 3 having a diameter larger than that of the cage rebar 2 constituting the rebar cage 1, and an upper horizontal rebar 4 of the portal anchor frame rebar 3 at the upper center of the rebar cage 1. It is arranged so as to cross in a cross shape, and the upper horizontal reinforcing bar 4 and the leg reinforcing bars 5 of the gate-shaped anchor frame reinforcing bar 3 are coupled to the reinforcing bar cage 1, and the anchor bolt supporting plate is attached to the middle part of the upper horizontal reinforcing bar 4. A holding member 6 is fixed by welding, a seat plate 8 is attached to a lower portion of the leg rebar 5 via a screw type level adjusting device 7, and an anchor bolt support plate 10 having an anchor bolt insertion through hole 9 is attached to the holding member. 6, and the holding member 6 and the anchor bolt support plate 10 have elongated holes 1 extending in directions intersecting with each other.
Bolts 1 provided with 1 and 12 and inserted into the long holes 11 and 12
3, the holding member 6 and the anchor bolt support plate 10
Reinforcing bar cage for foundations with anchor frame reinforcing bars that are fastened together.