JP2587008B2 - Load bearing for ground anchor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load bearing member for a ground anchor.

[0002]

2. Description of the Related Art Conventionally, load-bearing bodies for ground anchors are:
Those shown in FIG. 12 are often used.

[0003] As shown in (2) and (3) of this figure, the load-bearing body 20 has a single winding groove 30 at its tip.
However, latch grooves 50 are formed radially in the flanges 40 at the front and rear ends.

[0004] Then, as shown in FIG. 13, the load bearing body 20 is inserted into the anchor hole while being bound at an appropriate interval.

In this case, each of the load bearing bodies 20, 20a, 20b
Are wound around the winding grooves 30, 30a, 30b in different directions, and the PC steel wires 60, 60a, 60b wound around each load-bearing body 20, 20a, 20b in a U-turn shape are connected to the upper load-bearing body 20, 20a. , 20b latch grooves 50, 50
a, 50b.

[0006]

However, when the load-bearing members 20, 20a, 20b are bound at appropriate intervals as described above, the winding grooves 30, 30a, 30b are bound in different directions. It was difficult.

Further, as described above, the load bearing bodies 20, 20a,
20b are bound at appropriate intervals, each load-bearing body 2
PC steel wires 60, 6 wound around 0, 20a, 20b
0a, 60b are hung in the retaining grooves 50, 50a, 50b of the upper load-bearing members 20a, 20b, and all of the lower load-bearing members 20, 20a are retained in the retaining grooves 50b of the uppermost load-bearing member 20b. Since the PC steel wires 60 and 60a are hung, there is a disadvantage that a cross-sectional defect in the anchor body of the ground anchor is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems. An object of the present invention is to facilitate the binding when the load-bearing members are bound at appropriate intervals, and to reduce the cross-sectional defect in the anchor of the ground anchor. Is to reduce the

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a load anchor for a ground anchor around which a PC steel wire is wound in a U-turn shape, and a tip portion of the load anchor for the ground anchor. A plurality of winding grooves in which the PC steel wire is wound in a U-turn shape only in a certain direction, and a plurality of locking grooves for hanging the U-turned PC steel wire at the rear end of the load-bearing body. The winding groove and the locking groove are provided in the same direction as the winding groove, and the winding groove and the locking groove have a depth capable of overlapping and locking a plurality of PC steel wires. A guide portion is provided on a side portion of the load-bearing member between the guide members, and a plurality of the guide portions are formed at appropriate intervals in a length direction.

[0010]

The PC steel wire is wound in a U-turn around the winding groove at the end of the load-bearing body, and the U-turned PC steel wire is hooked in the locking groove. Therefore, when the load-bearing bodies are bound at appropriate intervals, they can be bound with the winding grooves in the same direction.

Further, since the PC steel wire is overlapped with the retaining groove and latched, the PC steel wire can be latched only in a fixed direction of the load-bearing body, so that a cross-sectional defect in the anchor body of the ground anchor can be reduced. .

Since the guide portion is provided on the side of the load bearing member between the winding groove and the retaining groove, it is possible to prevent the PC steel wires wound around these grooves from coming into contact with each other.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 is a perspective view of the load-bearing body for a ground anchor of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a bottom view thereof, and FIG.
Is a plan view, and FIG. 5 is a side view.

A load-bearing body 1 for a ground anchor (hereinafter referred to as a "load-bearing body") 1 has a U-shaped load-bearing plate 2, a flange 3 welded to the upper surface of the load-bearing plate 2, and a winding provided below the load-bearing plate 2. And a hook groove 4.

In the load-bearing plate 2, both side plates 2a are reinforced by reinforcing plates 5, and reinforcing girders 5a are provided on both sides of the reinforcing plate 5 at appropriate intervals in the vertical direction.

The U-shaped portion 2b of the load-bearing plate 2 has two side plates 2a.
The U-shaped portion 2b has four partition plates 6 protruding from the U-shaped portion 2b to form three winding grooves 4.

The center two of the partition plates 6 are formed to be higher than both sides, so that the winding groove 4 has a depth at which the PC steel wire 7 can be overlapped and wound. It is formed.

Incidentally, the winding groove 4 is formed in the 3
It is not limited to an article, and can be set to any number as needed.

The flange 3 has the same width as the U-shaped portion 2b, and has locking grooves 8 formed on both sides thereof. The PC steel wire 7 which is U-turned by the winding grooves 4 is formed in the locking grooves 8. It is locked.

The hook grooves 8 are provided in the same direction and in the same number as the winding grooves 4, and have a depth at which the PC steel wires 7 overlap and are hooked.

Further, guide portions 9 are provided vertically on the side plate 2a between the winding groove 4 and the retaining groove 8 at appropriate intervals. The guide portion 9 is a concave groove similar to each of the grooves 4 and 8, and has a U-turned P.
The contact between the C steel wires 7 is prevented.

Therefore, the load-carrying member 1 has three PCs.
The steel wire 7 can be U-turned and wound in parallel.

FIG. 8 shows a load-bearing body 1, 1a, 1b in which three PC steel wires 7, 7a, 7b are wound in a U-turn shape.
They are bound at appropriate intervals. When the load-bearing members 4 bound at appropriate intervals are inserted into the anchor holes, the load-bearing members 1, 1a, and 1b are set at different depths.

In this case, as shown in FIG. 9, three PC steel wires 7 are wound in parallel in the lowermost
And is latched in the latch groove 8.

As shown in FIG. 10, the PC steel wire wound around the lowermost load bearing body 1 a on the PC steel wire 7 a wound in parallel with the intermediate load bearing body 1 a. 7 are superimposed.

Further, the uppermost load-bearing body 1b has
As shown in (1), the PC steel wires 7, 7a wound on the lowermost and intermediate load-bearing bodies 1, 1a are superimposed on the PC steel wires 7b wound in parallel.

From the above, a plurality of load bearing bodies 1, 1
When the PC steel wire 7 wound around the lowermost load-bearing body 1 is bonded to the upper load-bearing body 1,
a, 1b, the PC steel wires 7, 7a, 7b are always the same even if the load-bearing bodies 1, 1a, 1b are further increased. It can be wound only in the direction.

[0028]

According to the present invention, a plurality of winding grooves in which a PC steel wire is wound in a U-turn shape at the leading end of the load-bearing body are provided only in a certain direction, and the rear end of the load-bearing body is U-turned by the winding groove. P
Since the plurality of retaining grooves for retaining the C steel wire are provided in the same direction as the winding groove, a plurality of PC steel wires can be wound in parallel in the same direction.

When the load bearing members are bound at appropriate intervals,
Since the PC steel wire of the lower load-bearing body is sequentially superimposed on the PC steel wire of the upper load-bearing body, the winding groove of each load-bearing body can be bound in a fixed direction, and the binding is easy. Can be done.

The winding groove and the retaining groove have a depth that allows the PC steel wires to be overlapped and latched, so that when the load-bearing bodies are bound at appropriate intervals, the PC steel wire of the lower load-bearing body becomes upper. Since it is sequentially superimposed on the PC steel wire of the load-bearing body and wound only in a certain direction, it is possible to reduce cross-sectional defects in the anchor body of the ground anchor.

Since the guide portion is provided on the side of the load-bearing body between the winding groove and the retaining groove, it is possible to prevent the PC steel wires wound around these grooves from coming into contact with each other.

[Brief description of the drawings]

FIG. 1 is a perspective view of a load bearing body for a ground anchor.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view of the same.

FIG. 6 is a sectional view taken along line AA of FIG. 2;

FIG. 7 is a sectional view taken along line BB of FIG. 2;

FIG. 8 is a front view in which load-bearing bodies are bound at appropriate intervals.

9A is a cross-sectional view taken along the line CC of FIG. 8, and FIG.
FIG. 4 is a sectional view taken along line D.

10A is a sectional view taken along line EE of FIG. 8, and FIG. 10B is a sectional view taken along line FF of FIG.

11A is a sectional view taken along line GG of FIG. 8, and FIG. 11B is a sectional view taken along line HH of FIG.

12 (1) is a front view of a conventional load-bearing body, FIG. 12 (2) is a plan view thereof, and FIG. 12 (3) is a bottom view thereof.

FIG. 13 is a perspective view in which conventional load bearing bodies are bound at appropriate intervals.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a, 1b Load-bearing body for ground anchors 2 Load-bearing plate 2a Side plate 2b U-shaped part 3 Flange 4 Winding groove 5 Reinforcement plate 6 Partition plate 7, 7a, 7b PC steel wire 8 Hanging groove 9 Guide part

Claims (3)

(57) [Claims] 1. A load-bearing body for a ground anchor in which a PC steel wire is wound in a U-turn shape, and a plurality of windings in which the PC steel wire is wound in a U-turn shape at the tip of the ground anchor load-bearing body. A groove is provided only in a certain direction, and a plurality of retaining grooves for retaining a U-turned PC steel wire are provided at the rear end of the load-bearing body in the same direction as the winding groove. The load-bearing body for a ground anchor, wherein the retaining groove has a depth such that a plurality of PC steel wires can be overlapped and latched. 2. The load bearing member for a ground anchor according to claim 1, wherein a guide portion is provided on a side portion of the load bearing member between the winding groove and the retaining groove. 3. The load-bearing body for a ground anchor according to claim 2, wherein a plurality of the guide portions are formed at appropriate intervals in a length direction.