JPH1060909A - Anchor bolt support structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure, by which the lower end part of any type of an anchor bolt can be fixed. SOLUTION: An anchor bolt support structure comprises an anchor bolt 10 arranged in such a manner that the upper end part thereof is extended in the vertical direction and has a male screw part formed thereon, a template 11 where the upper end part of the anchor bolt 10 is passed to be horizontally positioned, a nut 12 screw-engaged with the male screw part of the anchor bolt 10 to fix the template 11, and an anchor bolt support member 5 which is disposed vertically near the lower end part of the anchor bolt 10, the upper end part of which is fixed to the anchor bolt 10, and the lower end part of which is fixed to the support structure 25. Thus, the lower end part of any type of an anchor bolt can be fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for an anchor bolt used in construction work, and more particularly to an anchor bolt for positioning an anchor bolt and supporting the anchor bolt before embedding in foundation concrete. Regarding the support structure.

[0002]

2. Description of the Related Art As a conventional anchor bolt support structure, for example, there is one as shown in FIG. In the figure, reference numeral 30 denotes an anchor bolt arranged in a vertical direction, and a double nut 31 for fastening to a column base 1 provided at a lower end of a steel column later is provided at an upper end of the anchor bolt 30. Is provided. An anchor plate 32 (see FIG. 6) is provided at a lower end of the anchor bolt 30.

A steel pipe member 34 is fitted around the anchor bolt 30. Pipe member 3
4 is fitted into the through hole of the first steel plate member 36 made of steel disposed in the horizontal direction, and the fitting portion is fixed by welding. Positioning between the upper ends 30a is performed.

[0004] Below the anchor plate 32, there is disposed a second steel plate member 38, which is disposed horizontally, and a through hole of the second plate member 38 is formed in the lower end portion 30b of the anchor bolt 30. Mating, together with the anchor plate 32,
It is fastened and fixed by two upper and lower nuts 39 and 41. Thus, the second shaped plate member 38 positions the lower ends 30b of the anchor bolts 30 between each other.

[0005] As shown in FIG.
The lower ends 30b of the anchor bolts 30 are formed in the shape of a mouth so as to position each other, and the first plate member 36 described above is also arranged in the shape of a mouth.

As shown in FIG. 6, two L-shaped angle members 40 are fixed to the lower side (back side of the drawing) of the second shaped plate member 38 by welding. The upper ends of the two L-shaped angle members 42 are fixed to the inside of each of the 40 by welding. As shown in FIG.
The L-shaped angle member 42 is arranged in the vertical direction, and the lower end thereof is fixed to the discarded concrete 44 by the fastening member 45.

On the other hand, in addition to the anchor bolt 30 which extends linearly like the anchor bolt 30, there is an anchor bolt 51 formed in a U-shape as shown in FIG. A positioning hole of a template 52 is fitted to the upper end 51a of the anchor bolt 51, and the template 52 is sandwiched and fixed between nuts 53 and 54 and a spring washer 56.

[0008]

However, since the lower end of the conventional U-shaped anchor bolt 51 is literally bent in a U-shape, the conventional anchor bolt 51 extends linearly. Like the anchor bolt 30, the lower ends thereof are nuts 39 and 41 as shown in FIG.
It is not possible to adopt a method of fixing with.

In view of the above problems, an object of the present invention is to provide an anchor bolt support structure capable of fixing a lower end portion of any type of anchor bolt. .

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an anchor bolt having an external thread portion formed so that an upper end portion extends vertically, and an upper end portion of the anchor bolt having a through hole. Or a template formed with a hole or a recess for fitting and positioning the upper end in the horizontal direction, a nut screwed into a male screw portion of the anchor bolt to fix or support the template, An anchor bolt support member is disposed vertically near the lower end and has an upper end fixed to the anchor bolt and a lower end fixed to the support structure.

According to the anchor bolt support structure having such a configuration, the upper end of the anchor bolt support member vertically disposed near the lower end of the anchor bolt is fixed to the anchor bolt, and the lower end is supported by the support structure. The lower end of any type of anchor bolt can be fixed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views showing an anchor bolt support structure according to a first embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a U-shaped anchor bolt formed in a U-shape, and the anchor bolts are arranged so as to cross each other at lower ends. At the upper end of the U-shaped anchor bolt 10, a template 11 for positioning the upper end in the horizontal direction is provided.

In FIG. 1, a U-shaped anchor bolt 1 is shown.
Reference numeral 0 denotes the U-shaped anchor bolt 10 in which the male screw portion and the flat surface portion are omitted, and the U-shaped anchor bolt 10 uses a screw bar rebar as shown in FIGS. 2 and 3. The rebar has a male screw part 10a on both sides and a flat part 10b on the front and back sides formed along the length of the U-shaped anchor bolt 10, respectively.

The template 11 is formed in the shape of a mouth,
Through holes for positioning the U-shaped anchor bolts 10 are formed at the four corners, and upper and lower threads screwed into the male screw portions 10a formed in the U-shaped anchor bolts 10 penetrating the through holes. Nut 12 is the template 1
The U-shaped anchor bolts 10 and the template 11 are connected by tightening the upper and lower sides 1 and the anchor bolts are positioned in the horizontal direction.

As shown in FIG. 1, below the U-shaped bent portion located at the lower end of the intersecting U-shaped anchor bolt 10, a horizontal support plate 1 at the uppermost portion of a support structure 25 is provided.
5 are arranged so as to expand in the horizontal direction, and the U-shaped anchor bolt 10 located at the lower side of the two upper and lower U-shaped anchor bolts 10 whose lower ends intersect is formed on the fixing member 9. And is fastened and fixed to the horizontal support plate 15 by bolts 7.

The lower U-shaped anchor bolt 10 is fastened and fixed to the upper end of the support member 5 by the bolt 8 and the lock nut 13 (see FIG. 2). It is held vertically. As shown in FIG. 2, the support member 5 has a U-shaped cross-section by welding one side of two L-shaped angle members and forms a length in the vertical direction. Fifteen
The U-shaped open portions are arranged so as to face each other on the diagonal line, and their lower ends are fixed to the horizontal support plate 15 by welding.

The upper U-shaped anchor bolt 10 of the upper and lower U-shaped anchor bolts 10 whose lower ends cross each other is also fastened to the upper end of the support member 5 by the bolt 8 and the lock nut 13. And fixed.
That is, the U-shaped anchor bolt 1 located on the upper side
No. 0 fits into a U-shaped open portion formed in the support member 5, and the height between the upper ends of the anchor bolt and the lower end is adjusted. The screw portion 10 a is tightened, and the bolt 8 is further locked by the lock nut 13 and fixed to the support member 5.

As shown in FIG. 1, two horizontal L-shaped angle members 1 are provided on the lower surface of the horizontal support plate 15 of the support structure 25.
6 are fixed by welding, and inside the two L-shaped angle members 16, two L-shaped members arranged in the vertical direction are provided.
The upper end of the mold angle member 17 is fixed by welding, and two L-shaped angle members 18 are welded to the lower end of the mold angle member 17 so as to be disposed in the horizontal direction and to be grounded to the concrete 19. This L-shaped angle member 18 is used for discarding concrete 1
9 is fixed by a fastening member 20.

According to the anchor bolt support structure having such a configuration, by using the anchor bolt support member 5 vertically installed near the lower end of the U-shaped anchor bolt 10, any type of anchor bolt can be used. Therefore, it is possible to realize an anchor bolt support structure that can fix the lower end thereof.

FIG. 8 is a diagram showing a second embodiment of the present invention. In the first embodiment, the support member 5 is
One side of the two L-shaped angle members was integrated by welding to form a U-shaped cross section.
In this embodiment, one L-shaped angle member 2a and one plate member 2b are integrated by welding to form a U-shaped cross section. According to the second embodiment, the weight can be reduced and the cost can be reduced by saving the material as compared with the first embodiment.

FIG. 9 is a view showing a third embodiment of the present invention. The third embodiment uses a support member 3a having a cross section formed in a semicircular arc by bending a plate member as shown in FIG. 9A, or a plate member as shown in FIG. 9B. Is a support member 3b having a U-shaped cross section. According to the third embodiment, the welding step as in the above-described embodiment can be omitted.

In the first embodiment, the template 11 is fixed between the upper nut 12 and the lower nut. However, in addition to such a fixing method, for example, a U-shaped At the position of anchor bolt 10,
By using a template provided by welding a cylindrical member having a height in the vertical direction, a concave portion on the inner diameter side of the cylindrical member is fitted to the uppermost end of the U-shaped anchor bolt 10, so that the U-shaped anchor is formed. The positioning of the bolt 10 may be performed.

Alternatively, using the template 11 used in the first embodiment, a hole of the template 11 is fitted into a cylindrical portion formed as a lower nut so as to protrude from the upper surface thereof, and The template 11 may be placed and supported on the upper surface of the lower nut positioned around the lower end of the template 11.

In place of the horizontal support plate 15 used in the first embodiment, the L-shaped angle member 1 of the support structure 25 is used.
The lower end of the support member 5 may be fixed on another member such as 6.

[0026]

As described above, according to the anchor bolt support structure of the present invention, the upper end of the anchor bolt support member vertically arranged near the lower end of the anchor bolt is fixed to the anchor bolt. Since the lower end is fixed to the support structure, an anchor bolt support structure that can fix the lower end of any type of anchor bolt can be realized.

Further, in the above embodiment, the relative height position of the uppermost end of the U-shaped anchor bolt 10 can be easily adjusted by fixing the U-shaped anchor bolt 10 so that the support member 5 can move up and down. Can be adjusted.

Further, according to the second embodiment, it is possible to reduce the weight and the cost by reducing the material compared to the first embodiment.

Further, according to the third embodiment, the welding process as in the first and second embodiments can be omitted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of an anchor bolt support structure according to the present invention.

FIG. 2 is a partial cross-sectional view taken along the line AA of the support member 5;

FIG. 3 is a top view showing a screw bar.

FIG. 4 is a perspective view showing a fixing member 9;

FIG. 5 is a front view showing a conventional anchor bolt support structure.

FIG. 6 is a partial cross-sectional view of the anchor bolt support structure taken along line AA in FIG. 5;

FIG. 7 is a front view showing a conventional U-shaped anchor bolt.

FIG. 8 is a front view showing a support member 2 according to a second embodiment of the present invention.

FIG. 9 is a view showing a support member according to a third embodiment of the present invention, and FIG. 9 (a) shows a support member 3 having a semi-circular cross section.
FIG. 9B is a front view showing a support member 3b having a U-shaped cross section.

[Explanation of symbols]

 2, 3a, 3b, 5 Support member 2a L-shaped angle member 2b Plate member 7, 8 Bolt 9 Fixing member 9a Fitting part 10 U-shaped anchor bolt 10a Male screw part 10b Flat part 11 Template 12, 39 Upper nut 13 Lock Nut 15 Horizontal support plate 16, 18, 40 L-shaped angle member (horizontal member) 17, 42 L-shaped angle member (vertical member) 19, 44 Discarded concrete 20, 45 Fastening member 25 Support structure 30 Anchor bolt 31 Double nut 32 Anchor plate 34 Pipe member 36 Type plate member 38 Second type plate member 41 Lower nut

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Kitano 1-9-1 Kitahama-ku, Wakamatsu-ku, Kitakyushu-shi, Fukuoka Prefecture Inside the Wakamatsu Plant of Hitachi Metals Co., Ltd. No. 9-1 Inside the Wakamatsu Plant of Hitachi Metals, Ltd.

Claims (4)

[Claims] 1. An anchor bolt having an external thread portion formed so that an upper end portion extends in a vertical direction, and an upper end portion of the anchor bolt penetrates or fits to perform horizontal positioning of the upper end portion. A template having a hole or a recess formed therein, a nut screwed into a male screw portion of the anchor bolt to fix or support the template, and a vertically disposed upper end near the lower end of the anchor bolt, the upper end of which is the anchor bolt And an anchor bolt support member having a lower end fixed to the support structure. 2. The anchor bolt supporting structure according to claim 1, wherein the anchor bolt supporting member is fixed so as to adjust the vertical movement of the anchor bolt. 3. The anchor bolt supporting structure according to claim 1, wherein a U-shaped anchor bolt having a lower end bent in a U-shape is used as the anchor bolt. 4. The anchor bolt support structure according to claim 1, wherein a screw bar is used for the anchor bolt.