JP2002339374A - Template holder for installing anchor bolt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a template holder for installing an anchor bolt capable of being combined with a structural reinforcement. SOLUTION: The template holder 1 for installing the anchor bolts is composed of the template 2 and leg-section reinforcements 3 constituting the leg sections of the template. A large number of the anchor bolts 4 are suspended and mounted. The leg-section reinforcements are fixed onto main-body reinforcements 5, and given the same function as the structural reinforcements.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor bolt installation template mount used for a substructure such as a plant equipment which requires a pre-embedded anchor bolt.

[0002]

2. Description of the Related Art A large number of anchor bolts need to be installed on a substructure for installing plant equipment and the like. Conventionally, as shown in FIG. 2, concrete g is cast in a state where anchor bolt d is suspended from template b, and after hardening of concrete, template b is removed and anchor bolt d is installed on concrete (foundation structure) g. I have. The template b is attached to a template base c embedded in the substructure. By the way, as for the structural reinforcing bars h to be arranged on the foundation structure, the reinforcing arrangement shape, the diameter and the quantity are determined from the minimum reinforcing bar amount calculated by the structural calculation. In addition, the frame for template c is an anchor bolt d
Are shaped and sized to support the suspended template b. Usually, the template base c is manufactured by fixing an angle member e to a leveled concrete i at the bottom with an anchor f and welding a reinforcing bar and a steel member to the angle member e. The template b is set on the template base c thus manufactured. Thereafter, as described above, the anchor bolt d is suspended from the template b and set, the concrete g is cast, the template b is removed, and the anchor bolt d is installed on the concrete (foundation structure) g.

[0003]

Therefore, the conventional template mount c has the following problems. <A> The structural reinforcing bar h has a reinforcing bar shape, a diameter and a quantity determined from the minimum reinforcing bar amount calculated by the structural calculation, and the template base c has a shape and a size determined only for fixing the anchor bolt d. ing. That is, since the structural rebar h and the template base c are respectively determined for different purposes, the volume of the rebar and the steel material in the volume of the entire substructure is very large, and the volume of the rebar and the steel material per unit volume is large. And the cost of steel was high. <B> Since the template base c is manufactured by welding many rebars and steel materials, the structure is complicated and workability is poor. <C> Since many rebars and steel materials are used, it is difficult for concrete to fill gaps between these rebars, and it is necessary to perform sufficient compaction at the time of placing concrete.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an anchor bolt installation template mount that can also be used as a structural reinforcing bar. That is, an object of the present invention is to provide an anchor bolt installation template mount having a small volume of a reinforcing bar or a steel material per unit volume. Another object of the present invention is to provide an anchor bolt installation template mount having a simple structure and improved workability during concrete casting. The present invention achieves at least one of the above objects.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, an anchor bolt installation template mount of the present invention is provided with an anchor bolt installation template used for a substructure requiring an advance embedded anchor bolt. A gantry, comprising a template and leg rebars forming legs of the template, wherein the leg rebars are
It is characterized by being fixed to a main body reinforcing bar used for a substructure. By installing the anchor bolt installation template base of the present invention, it is possible to have the same function as the structural reinforcing bar of the main body by itself.

[0006]

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

<A> Overall Configuration A template base 1 for anchor bolt installation and a main body reinforcing bar 5 are arranged in a substructure 10 such as plant equipment. The legs of the template 2 are constituted by leg reinforcing bars 3, and the leg reinforcing bars 3 are fixed to the main body reinforcing bars 5. A major feature of the present invention is that the volume of the entire steel material is reduced by using a part of the structural reinforcing bar as the leg reinforcing bar 3.

<B> Template base 1 for anchor bolt installation The template base 1 for anchor bolt installation is composed of a template 2 and leg reinforcing bars 3 constituting legs of the template 2. Template 2 is anchor bolt 4
Is a template for placing the in a fixed position. Template 2
Is formed of, for example, a rectangular thin metal plate, and has a mounting hole through which the anchor bolt 4 is inserted at a position where the anchor bolt 4 is installed. The template 2 may be formed by assembling reinforcing bars or the like in a lattice shape. In this case, it is not necessary to open the mounting holes.

As the leg reinforcing bar 3, a deformed reinforcing bar or the like is used.
The vertical portion 31 and the horizontal portion 32 are formed by bending the middle of the leg reinforcing bar 3 at a right angle. The horizontal part 32 is fixed to the main body reinforcing bar 5 by welding or the like, and the template 2 is installed on the vertical part 31.
The vertical portion 31 constitutes a leg of the template 2. By fixing the horizontal portion 32 to the main reinforcing bar 5, the template base 1 for anchor bolt installation can be installed. Since the leg is composed of the leg reinforcing bar 3, the leg reinforcing bar 3
Can serve also as a structural reinforcing bar for the purpose other than fixing the anchor bolt 4, and can be formed into a shape based on structural calculations. Further, the basic shape of the legs and the like is desirably simple, but the present invention is simple because the leg reinforcing bar 3 is used.

<C> Anchor Bolt 4 The anchor bolt 4 has a lower end buried in the substructure 10 and is bent in a U-shape to provide a predetermined screw portion above and protruding from the substructure 10. Consists of deformed reinforcing bars such as reinforcing bars. When assembling the anchor bolt 4 to the template 2, the screw portion of the anchor bolt 4 is inserted into a corresponding mounting hole of the template 2, and the nut 4 is inserted into the screw portion.
Screw 1 in and fix it. Note that a spring washer or the like may be interposed between the nut 41 and the template 2 to prevent the nut 41 from loosening. By attaching the anchor bolt 4 to the template 2 in this manner, the anchor bolt 4 can be suspended from the template 2 and installed.

<D> Main Reinforcing Bar 5 The main reinforcing bar 5 is disposed on the substructure 10. In FIG. 1, the main reinforcing bar 5 shows a reinforcing bar basket in which a horizontal bar 51 and a vertical bar 52 are assembled in a cage shape. The reinforcing bar 5 can be manufactured in a different place such as a factory or a working place before it is installed on the substructure 10. The horizontal streaks 51 are, for example, thick rebars having a diameter of about 31 mm, and a large number of reinforcing bars are arranged at equal intervals in the horizontal direction. Fold it around 51 and arrange it. In this manner, the horizontal bars 51 and the vertical bars 52 are combined, and the intersections thereof are welded to manufacture the reinforcing bar cage 5. In accordance with the size of the substructure 10, an angle member 6 is attached to the lower part of the reinforced cage 5 manufactured in advance by welding or the like, and the angle member 6 is leveled by an anchor 61 and fixed to the concrete 7, so that the reinforced basket 5 is fixed. It is arranged on the substructure 10.

The main reinforcing bar 5 may be constructed by assembling a reinforcing steel into a steel material frame in which a steel material is assembled in a frame shape. In this case, the horizontal portion 32 of the leg reinforcing bar 3 is fixed to the steel frame or the reinforcing bar by welding. The main reinforcing bar 5 may be assembled at a place where the substructure 10 is installed. Further, in the present invention, since the leg reinforcing bar 3 also serves as a structural reinforcing bar, the number of the main body reinforcing bars 5 can be reduced.

<E> Substructure 10 Ground 11 is aligned with substructure 10 such as plant equipment.
Drilling. The ground crushed stones 8 are spread on the excavated bottom surface, and concrete 7 is cast thereon in a slab shape. It is preferable that the surface of the cast concrete 7 is flattened with a trowel to level the concrete 7.

Next, the anchor bolt 4 is connected to the substructure 1 by using the above-described anchor base 1 for anchor bolt installation.
The case of setting at 0 will be described.

<A> Installation of an anchor bolt installation template base 1 The leveling concrete 7 excavated from the ground 11 and cast on the bottom surface
Then, the angle member 6 is fixed with the anchor 61. The position where the angle member 6 is fixed is a position where the main body reinforcing bar 5 can be welded to the angle member 6. The main reinforcing bar 5 is welded to the angle member 6, and the main reinforcing bar 5 is installed in the substructure 10. The leg reinforcing bar 3 is bent at a right angle in advance to form a vertical portion 31 and a horizontal portion 32. The horizontal part 32 is welded to the main body reinforcing bar 5, the template 2 is placed on the vertical part 31, and the anchor base 1 for anchor bolt installation is installed in the substructure 10.

<B> Assembling of the anchor bolt 4 The screw portion of the anchor bolt 4 is inserted into the corresponding mounting hole of the template 2, and the nut 41 is screwed into the screw portion to be fixed. Thereby, the predetermined anchor bolt 4 can be suspended from the template 2 and set. Thus, the anchor bolt 4 is set on the template 2, and the anchor bolt installation template base 1 having the legs formed by the leg reinforcing bars 3 is installed in the substructure 10.

<C> Casting of concrete 12 Concrete 12 is cast into the substructure 10 on which the template base 1 for anchor bolt installation is installed. In the present invention, since the leg reinforcing bars 3 constituting the leg portions are fixed to and integrated with the main body reinforcing bars 5, wasteful steel materials are minimized. It will be easier to reach the whole area. Although not shown, a known mold is installed around the substructure 10.

<D> Removal of the template 2 When the concrete 12 is cured, the nut 41 is removed from the screw portion, and the template 2 is removed. As a result, the anchor bolt 4 is installed at a predetermined position on the substructure 10.

The present invention is an anchor bolt installation template base 1 in which a leg is constituted by a leg reinforcing bar 3 also serving as a structural reinforcing bar. It can have the same function as the ten structural reinforcing bars. Moreover, since the anchor part of the template base 1 for anchor bolt installation of the present invention is constituted by the leg reinforcing bar 3, the anchor bolt 4
, And also serves as a structural reinforcing bar of the substructure 10. In addition, the leg reinforcing bar 3 has a shape based on the structural calculation, and the structure is simple.

[0020]

As described above, the anchor bolt installation template mount of the present invention has the following advantages. <A> Since the legs of the template are composed of leg reinforcing bars, and the leg reinforcing bars are fixed to the main body reinforcing bars, the leg reinforcing bars have a function as structural reinforcing bars in addition to the function as the template mount. That is, only by installing the template mount, it is possible to have two functions of the anchor bolt installation template mount function and the structural reinforcing bar function. <B> Unlike the conventional method, where a large number of reinforcing bars and steel materials are welded to form a frame for the template, only the leg reinforcing bars are used. A template mount can be provided. <C> In addition, since it is constituted only by the leg reinforcing bars, the structure is simple, the workability is improved, and the cost of steel material is reduced. <D> Since the leg reinforcing bars that compose the legs are fixed to the main body reinforcing bars and integrated, useless steel materials are not required, and concrete is easily spread throughout the entire area when casting concrete. The performance is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an anchor bolt installation template mount.

FIG. 2 is a cross-sectional view of a conventional anchor bolt installation template mount.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Template base for anchor bolt installation 2 ... Template 3 ... Leg reinforcement 4 ... Anchor bolt 5 ... Main body reinforcement

Claims (1)

[Claims] An anchor bolt installation template base for use in a substructure requiring a pre-embedded anchor bolt, comprising: a template; and a leg reinforcing bar constituting a leg of the template. A template mount for anchor bolt installation, wherein the rebar is fixed to a main rebar used for a foundation structure.