JPH0721627Y2 - Anchor bolt fixing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides an anchor bolt for fixing a column base of a building,
The present invention relates to an anchor bolt fixing device installed on a concrete pile.

[Prior Art] As a method of fixing a column base of a building or the like to a foundation structure,
There are embedded type, root winding type and anchor bolt type, but anchor bolts are often used because the space available on the foundation floor is wide and workability is good.

The anchor bolt type embeds anchor bolts in the concrete of the foundation structure.In general, a steel frame is assembled and fixed on a waste container, and the anchor bolts are attached to it to pour concrete. Came. However, in this type, the steel frame to which the anchor bolt is attached is large, which is not only troublesome to carry, but also obstructs the reinforcement of the foundation structure, and there are drawbacks such as difficult position correction.

Therefore, the present applicants have developed a device capable of installing an anchor bolt without using a large steel frame by devising a device such as Japanese Utility Model Application No. 62-93945, and have obtained favorable results. As shown in FIGS. 4 and 5, this device has a structure in which vertical rods 2 and 2 are erected on a base 1 fixed on a waste container, and anchor bolts 3 and 3 are attached to the rods so that the vertical positions thereof can be adjusted. belongs to.

[Problems to be solved by the invention] By the way, in the case of constructing a large building, its column base is erected on the foundation pile that has been laid.
To use the above anchor bolt fixing device for this,
It turned out that there was a problem in construction. That is, one construction example is, as shown in FIG. 4, after placing the waste container 16 on the ground where the upper end of the concrete pile 15 is projected,
The support legs 26, 26 such as angles are embedded around 15 and the base 1 is welded to the support legs to ground the anchor bolt fixing device. However, this method makes the leveling of the device troublesome, so workability is improved. And there is a problem that accuracy is poor. As another example, as shown in FIG.
After placing 16, the concrete 27 is placed separately up to the projecting end (pile head) of the concrete pile 15, and the base 1 is fixed on it, but this method results in double-casting of concrete. Not only does it take time and work to delay the construction period, but there is also the possibility that it will separate from the basic concrete, and there is also a problem with strength.

The present invention has been made in order to solve the above problems, and provides a device for an anchor bolt fixing device facility at an upper position of a concrete pile that is easy, accurate, and has no problem in strength. It is what

[Means for Solving the Problems] The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 corresponding to the embodiments. The present invention has a frame-shaped base. 1, a plurality of anchor bolts 3 and 3 that are detachably erected on the base 1, and a template 7 that is fixed at a required height position by inserting the upper end portions of the anchor bolts 3 and 3. In the anchor bolt fixing device including the
Z-shaped support leg that is formed to be higher than the projecting length of the concrete pile 15 protruding from 16 and is placed and fixed on the waste container 16.
It is characterized in that the projections 12 and 12 are provided outside the base 1 so as to be detachable.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 is a base formed in the shape of a rectangular frame using an angle member or the like, and the rods 2 and 2 are provided at four corners thereof.
Is detachable or fixed and is erected. Then, a mounting hole 5 for inserting the anchor bolt 3 in the vertical direction is provided at the upper end portion of each rod 2, and an anchor bolt fixing means 4 in which a set screw 6 for fixing the anchor bolt 3 is screwed is provided. .

On the other hand, 7 is a template in which a large number of anchor bolts 3 are connected and hung vertically, and is formed in a rectangular shape, and a large number of mounting holes are provided at substantially equal intervals in the peripheral portion including its four corners. ing. Further, the anchor bolt 3 is provided with outer screws 8 and 9 at its upper end and lower end, and the upper end screw 8 is formed to be relatively long. Each of the anchor bolts 3 has a nut 1 screwed from the upper and lower surfaces of the template 7 by inserting the outer screw 8 of the upper end into the hole of the template 7.
It is attached by sandwiching it with 0 and 10, and the anchor bolt 3
A nut 11 is also screwed onto the outer screw 9 at the lower end of the.

As described above, the group of anchor bolts 3 and 3 hung vertically on the template 7 includes anchor bolts 3 at the four corners of the template 7 at positions corresponding to the rods 2 and 2, respectively. 3 is inserted from the lower end into the mounting holes 5 and 5 of the fixing means 4 in the rod 2, and the push bolt 6 is tightened and fixed at an appropriate height.

In addition, the above-mentioned base 1 has a required height Z on its four sides.
A support leg 12 formed in a shape is detachably attached by bolts and nuts 13 at its upper end. A fixing hole 14 for inserting the anchor bolt embedded in the waste container 16 is provided in the lower portion of the support leg 12.

The device of the present invention is constructed as described above, and its installation is carried out by placing the concrete pile 15 on the waste container 16 surrounding the already piled concrete pile 15 as shown in FIG.
Support leg 1 attached to the base 1 by embedding the discarded conch anchors 17 and 17 in the required position approximately centered on
The base 1 is placed by fitting the fixing holes 14 and 14 of 2 and 12 together. As a result, the base 1 will be located above the head end of the concrete protruding from the waste container 16. Then, anchor bolts 3 and 3 are hung vertically on the template 7, and four anchor bolts are inserted into the attachment holes 5 of the anchor bolt fixing means 4 of the rods 2 and 2 and fixed, and the template 7 is lowered and shaken. After adjusting to a predetermined position using (not shown), nuts are tightened on the stencon anchors 17, 17 to fix the base 1. In this case, the height of the anchor bolts 3, 3 can be adjusted by the insertion depth of the anchor bolts 3 into the fixing means 4, and the range is approximately the height from the support leg 14 to the upper end of the vertical punch 2. From the height of the anchor bolt 3 to the vicinity of the height.

In this way, the anchor anchorage facility is completed, but after that, the base muscle 18 is installed, the anchor anchorage device is surrounded and the standing muscles 19 and 19 and the hoop muscles 20 and 20 are assembled, and The (main bars) 21, 21 and the upper braces 22, 22 (main bars) and the stirrup 23, 23 connecting them are arranged, and the foundation concrete 24 is placed up to the position shown by the dotted line in FIG. Then, the column pedestal (not shown) of the building is connected to the anchor bolts 3, 3 protruding from the foundation concrete 24.

In addition, 25 in FIG. 3 is a pile reinforcement.

Further, in the embodiment shown in FIG. 3, the base 1 is fixed by straddling one concrete pile 15. However, the present invention is not limited to this, and the base 1 is composed of a plurality of closely placed concrete piles 15. It can also be placed and fixed so as to straddle the concrete piles 15, 15.

[Effects of the Invention] As described above, the device of the present invention has a frame-shaped base in which a plurality of anchor bolts are erected, and a template is fixed to the anchor bolts. Since the Z-shaped support leg formed so as to have a length longer than the protruding length is provided so as to protrude, it has many advantages as follows.

(1) Since the device is fixed through the support legs attached to the base, the height of the support legs allows the base to be positioned above the pile head projecting above the waste container, so that the projecting pile head It can be placed and fixed directly on the waste container without being disturbed. Moreover, the fixing can be done by embedding the discarded anchor in the waste container, engaging the support leg with it and tightening the nut, so the work is extremely simple,
Can be firmly fixed.

(2) The template can be fixed to the anchor bolt at any height by simply changing the tightening position with a pair of nuts, and the adjustment to the column base fixed height of the building according to the placement height of the foundation concrete can be adjusted. Can be widespread.

(3) Since the structure is simple and can be disassembled, the cost is low and the transportation and handling are easy.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the device of the present invention, FIG. 2 is a plan view of the same section, and FIG. 3 is a front view showing the same construction mode.
FIG. 4 is a front view showing a construction example of a conventional device, and FIG. 5 is a front view showing another construction example. 1 ... Base, 2 ... Vertical 3 ... Anchor bolt, 4 ... Fixing means 7 ... Template, 12 ... Support legs 14 ... Mounting hole, 15 ... Concrete pile 16 ... Disposable concrete

Claims (1)

[Scope of utility model registration request] 1. A frame-shaped base, a plurality of detachable anchor bolts erected on the base, and upper ends of the anchor bolts are inserted to be fixed at a required height position. In the anchor bolt fixing device including a template, a Z-shaped support leg is formed on the base that is higher than a protruding length of a concrete pile protruding from the waste container, and is mounted and fixed on the waste container. An anchor bolt fixing device characterized in that the fixing device is detachably provided by projecting to the outside of the base.