JPH09217357A - Anchor frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the security and working property of an anchor frame used to fix the column leg of a structure. SOLUTION: A square frame-like base 2 is formed by an angle material. This base 2 has fixing bolts 3 protruded inward on the inside of the four corners. Vertical beams 7 having means for fixing anchor bolts are vertically stood through the fixing bolts 3 on the four corners of the base 2 with their ridge parts being turned to the inside of the corner parts, and fixed by nuts 4 screwed to the fixing bolts 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor frame for holding an anchor bolt used for fixing a column base of a building.

[0002]

2. Description of the Related Art As a method of fixing a column pedestal of a building to a foundation structure, there are an embedding type, a root winding type and an anchor bolt type. Since it is good, anchor bolts are often used.

[0003] The anchor bolt type is a method in which anchor bolts are embedded in concrete of a foundation structure.
As shown in FIG. 10, a steel frame 24 is assembled and fixed on a disposal container 23, an anchor bolt 15 is attached to the steel frame 24, concrete is cast, and the anchor bolt 15 is buried. This method has the advantage that the anchor bolt 15 can be fixed firmly, but the steel frame 24
Because it is welded and manufactured at factories and the like and brought to the site, heavy equipment such as wreckers is required, and because the steel frame 24 is large, it not only obstructs the reinforcement of the foundation structure,
There is a drawback that the position is difficult to fix due to the mounting and fixing method by welding, and the workability is poor.

In view of the above, there has been proposed a system in which the frame is assembled by the anchor bolts themselves without using the steel frame as described above (see Japanese Utility Model Laid-Open No. 60-58645). As shown in FIG. 11, this anchor has a lower end portion of an anchor bolt 15 fixed to a fixing plate 25 installed on the foundation ground and an upper end portion fixed by an auxiliary plate 14, thereby making a conventional large-sized steel bolt. This allows for robust assembly without using a frame.

[0005]

However, since the adjustment method in the height direction of the anchor bolt is small in the improved method described above, the length of the anchor bolt is long to be applied to various foundation structures having different thicknesses. It is necessary to prepare various sizes with 100 mm pitch difference, which leads to high cost and labor for manufacturing and inventory. In addition, when a long anchor bolt is used, the workability is reduced due to its heavy weight. Furthermore, when it corresponds to a corner post, there is a drawback that it is difficult to fit a lower nut with a washer.

The present invention seeks to improve the above-mentioned conventional system, and reduces the number of types of anchor bolts, which are relatively expensive, by the length of the bolts, and achieves a large cost reduction by mass-producing small types. In addition, inventory control is easy, and the length of anchor bolts is shorter than conventional ones to reduce weight, improve workability, and facilitate work on corner posts. It is intended to provide an anchor frame that can be used.

[0007]

[Means for Solving the Problems] The anchor frame of the present invention
1 to 9 corresponding to the embodiment, the anchor frame according to claim 1 is formed in a rectangular frame shape by an angle member, and fixing bolts are formed in respective corners thereof. Base 2 that is fixed to concrete or the ground via Stecon Anger 5 protruding toward
And a bolt insertion hole 8 for receiving the fixing bolt 3 at a ridge at a lower end thereof.
And a fixing means 13 for fixing an anchor bolt 15 at an upper portion thereof. The ridges are respectively set upright inside the corners of the base 2 inside the corners of the base 2. And four vertical rods 7 fixed by nuts 4 screwed to the fixing bolts 3.

Further, the anchor frame according to the second aspect is formed in a rectangular frame shape by an angle material, and a bolt insertion hole 20 is provided near each corner thereof. A bolt insertion hole 21 corresponding to the bolt insertion hole corresponding to the bolt insertion hole is provided on a side surface of a lower end of the base 2 to be fixed and an angle material. A fixing means 13 for fixing the bolt 15 is provided. Each of the four vertical rods 7 is fixed to each corner of the base 2 by abutting both side surfaces of a lower end thereof and fixed by bolts and nuts. , 7.

[0009]

[Function] The base 2 made of an angle member has a frame shape, and the rod 7 made of an angle member is fixed by using a stencon anchor 5 for preventing lateral movement or vertical movement with respect to the ground.
Are installed substantially perpendicular to the base 2, but they are easily and firmly connected by using bolts and nuts.
The vertical rod 7 is firmly self-supported by fixing the anchor bolt 15 on the upper part of the vertical rod 7. This is because when the anchor bolt is subjected to a lateral force or the like at the time of rebar construction or concrete placement, an axial force or bending moment acts on the leg of the vertical rod 7 itself. However, the base 2 fixed at a right angle to the vertical rod 7 as a reaction force of these forces
Will bear the stress. Further, since the base 2 made of an angle material is formed in a frame shape and is fixed to the ground by the stake anchors 5, the whole anchor frame becomes more robust. When the vertical rod 7 and the anchor bolt 15 are eccentrically fixed, the bending moment is generated at the leg of the vertical rod 7 by the weight of the anchor bolt 15 itself. Since this bending stress can be borne, the vertical rod 7 stands firmly and independently.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6, reference numeral 1 denotes an anchor frame according to the present invention, which comprises a base 2, a plurality of vertical rods 7, 7 and a fixing means 13. The base 2 is formed in a rectangular frame shape by an angle material,
At the four corners, fix the bolts 3
Are protruded by welding, and the nut 4 is screwed, and the angle material on each side of the base 2 is provided with a stecon anchor 5 embedded in the ground (stecon) 23 (see FIG. 5). Attachment holes 6 and 6 to be inserted are provided.

The vertical rod 7 is formed to be vertically long by an angle material, and a ridge at a lower end thereof is provided with an insertion hole 8 (see FIG. 3) for the fixing bolt 3.
After being fitted into the fixing bolt 3 of the base 2, the nut 4 is tightened by the nut 4 to be fixed upright to the base 2. As a result, these vertical rods 7, 7 are independently erected at predetermined intervals. Also,
On the upper part of the vertical rod 7, an L-shaped member 10 is fixed to an upright semi-receiving part 9 which is bent inwardly of the angle member so as to face the same.
An insertion hole 11 for receiving the anchor bolt 15 is formed between the semi-receiving portion 9 and the L-shaped member 10 and an L-shaped member is formed.
A push bolt 12 is threadably engaged with the ridge of 10 so as to advance and retreat, and this serves as anchor bolt fixing means 13 described later. In addition, the angle material which comprises the base and the vertical frame 7 is not limited to a standard product, and may be a plate material bent in an L shape.

Next, a method of using the anchor frame 1 will be described with reference to FIGS. Reference numeral 14 denotes a template for connecting and suspending a plurality of anchor bolts 15 at the upper part thereof, which is formed in a square shape, and has a plurality of mounting holes (e.g., Abbreviated). Also, anchor bolt 15
Are provided with external screws 16 and 17 at the upper end and the lower end, respectively, and the external screw 16 at the upper end is formed relatively long. Each of the anchor bolts 15 is attached by inserting the outer screw 16 of the upper end thereof into the hole of the template 14 and sandwiching the nuts 18 and 18 screwed from the upper and lower surfaces of the template 16 with each other. A nut 19 is also screwed onto the outer screw 17.

The group of the anchor bolts 15 suspended from the template 14 as described above includes the anchors located at the four corners of the template 14 in the positions corresponding to the vertical rods 7, 7 respectively. The bolts 15, 15 are fixed to the vertical rods 7, 7 fixing means 13 of the anchor frame 1 from the lower ends thereof.
Through the insertion holes 11 and 11 and press bolts at appropriate height
Tighten and fix 12,12.

FIGS. 7 to 9 show another embodiment of the present invention according to claim 2, wherein the use of an angle material for the vertical rod 7 is the same as that of the above embodiment. Bolt insertion holes 20 and 20 are provided at the four corners instead of the bolts 3 fixed, and bolt insertion holes 21 and 21 are also provided at the lower end of the vertical rod 7 correspondingly. The rod 7 is attached to the corner of the base 2 as shown in FIG.
It is designed to be fixed by a nut (not shown). Further, the anchor bolt fixing means 13 above the vertical rod 7
Is a bracket 22 made of an angle material or the like on the upper end of the vertical rod 7.
Is fixed, angle members are fixed to each other at both end portions to form insertion holes 11 for anchor bolts 15, and push bolts 12 are screwed into one angle member.

The anchor frame of the present invention is constructed as described above. In construction, firstly, stake anchors 5 and 5 are buried in the ground, and the base 2 is inserted through the mounting holes 6 and 6. Fit. Next, the lower ends of the vertical rods 7 are attached to the four corners of the base 2 and fixed and erected. Then, anchor bolts 15,
15 and hang the four rods at the corners inside
Of the anchor bolt fixing means 13 is inserted into the insertion hole 11 and fixed, and the template 14 is swung down (not shown).
Then, the base 2 is fixed by tightening the nuts on the STECON anchors 5 and 5.

In this case, the height of the anchor bolts 15, 15 can be adjusted by the insertion depth of the anchor bolts 15 into the fixing means 13, and the range is from the height of the anchor frame 1 to the height of the anchor frame 1. It can be performed widely up to the height obtained by adding the height of the anchor bolt 15 to the height. In each of the above embodiments, the fixing means 13 is provided so that one anchor bolt 15 is fixed to each vertical rod 7, but two or more fixing bolts are provided for each vertical rod 7. It is also possible to make it possible to fix the anchor bolt 15 of FIG.

[0017]

As described above, according to the anchor frame of the present invention, the bar made of a plurality of angle members is provided with a plurality of vertical rods at predetermined intervals on the base in which the angle members are formed in a frame shape. In addition to being erected independently, an anchor is placed on the top of each rod.
Since the bolt fixing means is provided independently, there are many excellent effects as described below.

(1) Since the base for supporting each vertical rod in an upright state is formed in a frame shape, it substantially functions as a surface. At the time of installation, the external force acting on the vertical rod 7 is shared, and the entire anchor frame becomes strong. Further, when the assembly including the anchor bolts and the template is fixed to the ground, the rigidity of the entire frame is increased and the frame becomes robust.

(2) In the anchor frame, a plurality of rods are erected at intervals on a frame-shaped base, and the anchor bolts are fixed to the respective rods. The work of arranging is smooth and easy.

(3) In the anchor frame according to the first aspect, each of the fixing bolts projecting from the inside of the four corners of the frame-shaped base is fixed to the base by tightening a nut through a vertical rod. Assembling of the anchor frame by attaching the rod is simple and easy and can be performed firmly. Further, in the anchor frame according to the second aspect, since each vertical rod is fixed by bolts and nuts in a state of being in contact with the corners of the base, the rigidity of the frame becomes higher and the assembly of the anchor frame becomes easier. Simple and easy.

(4) Anchor bolts are anchor-free.
The length of the anchor bolt can be significantly reduced, and small-scale mass production is possible because the rod can be fixed to the desired height by the appropriate length of the vertical rod and the upper fixing means. And can greatly reduce costs,
Inventory management becomes easier. Moreover, since the anchor bolt is fixed by the fixing means at the upper part of the vertical rod, a shorter bolt can be used as compared with the conventional anchor bolt, so that the weight can be reduced and the workability can be improved. In addition, the anchor frame has many advantages, such as being convenient for transportation, requiring no heavy equipment for carrying in, and being suitable for corner posts.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an anchor frame of the present invention.

FIG. 2 is a front view of a base used in the anchor frame.

FIG. 3 is an enlarged plan sectional view showing a fixed state of a base and a vertical rod.

FIG. 4 is an enlarged plan sectional view showing a part of anchor bolt fixing means.

FIG. 5 is a front view illustrating a use state of the anchor frame of the present invention.

FIG. 6 is a cross-sectional plan view illustrating an arrangement of anchor bolts and a fixing state thereof.

FIG. 7 is a front view of a main part showing another embodiment of the present invention and a use state thereof.

FIG. 8 is a plan sectional view showing a mounting state of the base and the vertical rod.

FIG. 9 is a plan sectional view showing an arrangement and a fixed state of the anchor bolt.

FIG. 10 is a front view showing a conventional device.

FIG. 11 is a perspective view showing another conventional device.

[Explanation of symbols]

 1 Anchor frame 2 Base 3 Fixing bolt 4 Nut 5 Stecon anchor 7 Vertical rod 8 Bolt insertion hole 11 Insertion hole 12 Push bolt 13 Anchor bolt fixing means 14 Template 15 Anchor bolt 16, 17 Outer screw 20, 21 Bolt insertion hole

Claims (2)

[Claims] 1. A rectangular frame shape made of an angle material,
In each corner, a fixing bolt is provided so as to project inward, and is formed by an angle member and a base fixed to concrete or the ground through a Stecon anchor.
A ridge portion at the lower end portion thereof is provided with a bolt insertion hole for receiving the fixing bolt, and an upper portion thereof is provided with fixing means for fixing an anchor bolt, and inside each corner portion of the base, An anchor frame, which is upright with its ridges directed inward of the base and is fixed by a nut that is screwed into the fixing bolt, and is composed of four rods. 2. A rectangular frame formed of an angle member,
A bolt insertion hole is provided in the vicinity of each corner, a base fixed to concrete or the ground via a stencon anchor and an angle member, and the side surface of the lower end corresponds to the bolt insertion hole. A bolt insertion hole is provided, and an upper portion thereof is provided with fixing means for fixing the anchor bolt, and each corner portion of the base is brought upright by abutting both side surfaces of the lower end portion. Anchor frame consisting of four rods fixed with bolts and nuts.