JPH0649850A - Foundation bolt fixing device - Google Patents

Abstract

PURPOSE:To secure and facilitate the construction of foundation bolts for fixing pillar leg or the like. CONSTITUTION:An anchor part 1, in which anchor members 5, 5 to be embedded in the foundation concrete 6 are welded 4 to an anchor plate 3, and a fixture part 2, in which foundation bolts 8, 8 for fixing pillar leg 11 or the like are welded 9 to an auxiliary plate 7, are formed separately. At a construction site, the fixture part 2 is placed on the anchor part 1 embedded in the foundation concrete 6, and the anchor plate 3 and the auxiliary plate 7 are welded to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a foundation bolt for supporting a steel column post of a building.

[0002]

2. Description of the Related Art As a method for supporting and fixing a steel column post of a building to a foundation structure, generally, as shown in FIG. 6, anchor bolts 14 and 14 of J type are used as foundation bolts. Set at the same time as reinforcing bars for underground beams and bury them in basic concrete 6, then engage the base plate 12 such as column base 11 with the part protruding from the concrete 6 and tighten with nuts 13. I'm trying to fix it.

However, according to this method, the foundation bolts 14, 14
Since each of them is embedded in concrete independently, it is difficult to position them, and in order to align with the column base, etc., the foundation bolts 14 are often bent as shown in (a) of FIG. Not only is it very troublesome, but there is also the problem that extra stress is applied to the foundation bolt.

Therefore, in order to solve the above problems, for example, an anchor bolt fixing device as described in Japanese Utility Model Laid-Open No. 60-8305 or a Japanese Patent Publication No. 13575/1975. Various anchor bolt foundation mounting methods have come to be implemented. In the former device, the plates are fixed with nuts above and below the four bolts that are the foundation bolts.
The lower plate has a fixing plate for fixing.The fixing plate is fixed to the concrete with an anchor and embedded in the foundation concrete, and the base plate part of the column base is fixed to the bolt. ing. In the latter method, one side of the plate is welded with a digging foot (deformed steel bar) to be embedded in the concrete, and the metal is installed so that the other side of the plate is exposed on the surface and then embedded in the basic concrete. After that, a base bolt is welded to the exposed surface of the plate, and a base plate portion such as a column base is fixed to this.

[0005]

However, in the former case, since the device often tilts or moves when pouring concrete, it is necessary to provide a fixing means for the device and the fixing position of the column base. There are drawbacks such as subtle correction of is impossible. In the latter case, the deformed bar steel of the bite foot is welded to the plate at the factory, but the most important foundation bolts must be welded on site one by one, and the welding position of each foundation bolt is decided. It is troublesome and there is a problem in quality control. In addition, deformed steel bars and foundation bolts use special welding equipment and require high skill,
There is a problem in that the work plan from rebar reinforcement to column base fixing must be carefully determined.

The present invention has been made in order to solve the above problems in the prior art. The welding of an important foundation bolt for fixing deformed steel bars and column bases can be performed by using an automatically controlled welding device. It can be done in a factory that is easy to manage, and in the field, without requiring special welding equipment and special skills, it is possible to easily fix the foundation bolts to supporting positions such as column bases, An object of the present invention is to provide a foundation bolt fixing device capable of easily carrying out work planning from reinforcing bar reinforcement to support of a column base of a foundation structure.

[0007]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 5 corresponding to the embodiments. Anchor part 1 welded with anchor material 5,5
And welding the foundation bolts 8 and 8 to one side of the auxiliary plate 9
The fixed plate 2 and the fixed plate 2 are formed separately, and the anchor plate 3 is formed.
The other surface side of the auxiliary plate 7 is attached to the other surface side of the auxiliary plate 7, and the plates 3 and 7 are welded 10 to fix the anchor portion 1 and the fixed portion 2.

[0008]

1 is a perspective view of an embodiment of the device of the present invention, FIG.
Is a side view, FIG. 3 is a side view in a separated state, and 1 is an anchor portion and 2 is a fixed portion.

The anchor portion 1 is formed by welding one end of a plurality of anchor members 5, 5 made of deformed steel bar or the like embedded in the basic concrete 6 to one surface of a flat plate-shaped anchor plate 3. The structure is fixed by 4, and the welding of the anchor material to the anchor plate 3 is performed in the factory and is transported to the construction site. In addition, although two anchor materials 5 are fixed in the embodiment, it is possible to fix a larger number of anchor materials.

The fixing portion 2 is provided with a plurality of short base bolts 8 for fixing a base plate portion such as a column base on one surface of a flat plate-like auxiliary plate 7 having a smaller planar shape than the anchor plate 3. It has a structure in which it is erected by welding 9 at a required interval, and this also welds the foundation bolts 8 and 8 to the auxiliary plate 7 at the factory,
Transported to the construction site. In addition, in the embodiment diagram, four foundation bolts 8 are fixed, but the number can be increased or decreased as necessary. Further, the auxiliary plate 7 may be a simple flat plate, but it is suitable if it is formed into a hollow shape or an annular shape as shown in FIG.

The anchor portion 1 and the fixed portion 2 are joined together by welding at a construction site to form the device of the present invention. That is, first, the anchor portion 1 is fixed to the anchor members 5, 5 by utilizing the reinforcement of the substructure such as the underground beam.
Is embedded in the substructure and is fixed so that the surface of the anchor plate 3 on the opposite side is exposed to the surface of the substructure and the concrete 6 is poured. Then, after the concrete 6 is hardened, the marking lines aa and bb (see FIG. 1) for installing the column bases are marked on the foundation structure, and the auxiliary plate 7 of the fixing portion 2 is marked on the marking line. The fixing portion 2 is fixed to the anchor portion 1 by placing the fixing portion 2 on the anchor plate 3 in accordance with a and b, and welding 10 around the auxiliary plate 7 and necessary portions. As shown in FIG. 2, the column base 11 includes a base plate 12 at the lower end thereof and a base bolt 8
, 8, and nuts 13, 13 are tightened and fixed. The marking lines may be provided with marks for aligning with a and b on the anchor plate 3 and the auxiliary plate 7, as shown in FIG.

In the above-described embodiment, the anchor plate 3 and the auxiliary plate 7 are fixed so as to be substantially coaxial with each other. However, as shown in FIG. When embedded by being offset from the position, the auxiliary plate 7 can be fixed to a position deviated from the center of the anchor plate 3, and as shown in FIG.
Corresponding to the position of the engaging portion of the column base to be fixed, the foundation bolt
In order to position 8, 8, the auxiliary plate 7 can be freely turned and fixed. Furthermore, although the anchor plate 3 and the auxiliary plate 7 are square in a plane in each of the above-described embodiments, the shape can be various shapes such as a polygon and a circle.

[0013]

As described above, in the foundation bolt fixing device of the present invention, the anchor portion in which the anchor material is welded to the anchor plate and the fixing portion in which the foundation bolt is welded to the auxiliary plate are separately formed. Since both of them can be fixed to each other at the construction site, the anchor part and the fixed part can be securely and firmly made using the welding equipment required in the factory, quality control can be sufficiently performed, and dimensional accuracy is improved. Can be achieved.

At the site, the fixing portion may be fixed to the buried anchor portion by aligning the auxiliary plate with the marking line, and the fixing is performed by special welding equipment or stick welding which does not require skill. Therefore, the work at the site can be performed easily and surely and efficiently, and the inspection of the welding state can be facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view showing the anchor portion and the fixed portion as separate bodies.

FIG. 4 is a plan view showing another embodiment.

FIG. 5 is a plan view showing still another embodiment.

[Explanation of symbols]

 1 Anchor part 2 Fixed part 3 Anchor plate 4 Welding 5 Anchor material 6 Foundation concrete 7 Auxiliary plate 8 Foundation bolt 9 Welding 10 Welding

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[Procedure amendment]

[Submission date] March 15, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view showing the anchor portion and the fixed portion as separate bodies.

FIG. 4 is a plan view showing another embodiment.

FIG. 5 is a plan view showing still another embodiment.

FIG. 6 is a side sectional view showing a conventional device.

Claims (1)

[Claims] An anchor part welded with an anchor material on one side of the anchor plate and a fixed part welded with a foundation bolt on one side of the auxiliary plate are formed as separate bodies, and the other side of the auxiliary plate is attached to the other side of the anchor plate. A foundation bolt fixing device characterized in that an anchor portion and a fixing portion are fixed to each other by joining the sides and welding the both plates.