JPH0988084A - Supporter of level metal fitting for column base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a level metal fitting buried into foundation concrete efficiently in specified height, and to remove the level metal fitting easily after the curing of concrete. SOLUTION: A level metal fitting 4 is projected upwards from an opening 16 formed to a first support section mounted between foundation forms. Second support members 21 are inserted between the head section of a support bolt 20 for the level fitting 4 and the top face of the first support member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a level metal fitting, which is embedded in a base concrete and used for leveling a column base installed on the base concrete.

[0002]

2. Description of the Related Art When a column base is installed on the top of a concrete foundation and the end plate at the bottom of the column base is fixed to an anchor bolt embedded in the foundation, it is between the top of the foundation and the bottom face of the column base. It is practiced to fill grout such as non-shrink mortar. In this case, the lower end of the pedestal is placed on a level metal fitting that is previously embedded in the foundation concrete, and after adjusting the level of the pedestal with this level metal fitting, the above-mentioned grout is filled. .

[0003]

Therefore, in order to bury the level metal fittings in the foundation concrete, it is necessary to install the metal fittings in the foundation formwork before placing the concrete. It is an object of the present invention to provide a support device that allows such level metal fittings to be embedded in such concrete to be efficiently installed at a predetermined height, and that can be easily removed after hardening of concrete. .

[0004]

In order to solve the above-mentioned problems, according to the present invention, a support of a level metal fitting, which comprises a metal fitting main body embedded in basic concrete and a support bolt screwed into the upper end of the metal fitting main body, is provided. A first support member, which is an apparatus installed across the formwork for foundation concrete and has an opening for projecting upward a level fitting installed between the formwork frames. A second supporting member that is bifurcated in a plan view and that is laterally fitted into the space between the lower surface of the head of the supporting bolt and the upper surface of the first supporting member. It is what

In the above description, the second support member is U-shaped when viewed from the side, and the bifurcated shape is formed by the notch formed by the open ends of the upper and lower pieces of the U-shape. It is thought that it is formed in.

On the other hand, it is conceivable that the second support member is composed of a pair that is installed in a superposed manner between the lower surface of the head of the support bolt and the upper surface of the first support member.

Further, it is conceivable that the first support member also serves as a mold for forming a recess at the top end of the foundation concrete.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to an embodiment in the case of using a mold for forming a recess at the top of a concrete foundation.

FIG. 1 shows a top end of a foundation concrete (2) in which a level fitting for a column base is embedded. In the figure,
(1) is a recess for filling grout, and anchor bolts embedded in advance at the four corners of the bottom of the recess (1)
(3) (3)… The upper end of the protrusion protrudes, and the level metal fitting (4) is located in the center.
Is protruding.

FIG. 2 shows a state in which the mold for forming the recess (1) is used as a first support member and the second support member is used to support the level fitting. In the figure, (5) is a concave part forming frame which is a first supporting member, and is a roughly boat-shaped main body (6) and four pieces projecting outward from the side wall of the main body (6). It is composed of a mounting part (7) (7). (8) (8) is a pair of foundation formwork for placing the foundation concrete (2), and the mounting portions (7), (7) ...
, So that it covers the upper edge of the base formwork (8),
The nails (9) (9) ... are hit and fixed to the base formwork (8). (10) (10) ... is a height adjusting bolt screwed from above to the mounting part (7) (7). By rotating this adjusting bolt (10) before nailing, I try to put out the level of the body (6).

Further, (11) and (11) are support frames for the anchor bolts (3), which are a pair of mounting portions opposed to each other in the width direction of the foundation.
(7) It is installed across the upper surfaces of (7) and is fixed to its mounting portion (7) by bolts (12). Formwork body (6)
At the four corners of the main body (6), the upper ends of the anchor bolts (3) installed so as to project above the bottom (13) of the main body (6) project above the bolt holes (14) of the support frame (11),
The upper and lower nuts (15) (15) are fixed in a hanging manner.

At the center of the bottom portion (13) of the mold body (6),
A rectangular opening (16) is formed as shown in FIG. 5, and the upper end of the level metal fitting (4) is projected upward from this opening (16). The level metal fitting (4) is composed of a horizontal fixing plate (19) welded to the lower end surface of the long nut (18) and a support bolt (20) similarly screwed into the long nut (18) from above. Thus, the upper side of the upper end portion of the long nut (18) is inserted from the lower side so that the upper side of the long nut (18) projects above the bottom portion (13), and the pair of supporting metal fittings is the second supporting member of the present invention. (21) It is to be supported using (21).

The support metal fitting (21) has a structure in which a metal plate is bent and formed in a U-shape when viewed from the side. The U-shaped upper piece (22) and the lower piece (23) are , A vertical piece that connects the two
Notches (25) and (26) having a predetermined depth are formed from the open end on the opposite side to the (24) and are bifurcated when viewed from a plane. Also,
The rear end of the notch (26) of the lower piece (23) is formed into a chevron that fits the two sides of the long nut (18), and its width is also the two parallel sides of the long nut (18). It is slightly larger than the distance between them. On the other hand, the notch (25) in the upper piece (22) is
It has a rectangular shape with a width slightly larger than the shaft of (20).

Then, these support fittings (21) and (21) are fitted on the shaft portions of the support bolt (20) by notching the notches (25) of the upper piece (22) from opposite sides to each other, and Insert the notch (26) onto the protruding part of the long nut (18), and insert it vertically between the head of the support bolt (20) and the bottom of the formwork body (13). By doing so, the level metal fitting (4) is held at a predetermined height.

FIG. 3 shows the level metal fitting as described above.
It shows the state after placing the concrete foundation (2) with (4) installed. And foundation concrete (2)
After curing, remove the support frame (11) and
1) is removed by pulling it out to the side, the nail 9 fixing the mounting portion 7 is pulled out, and the entire recess forming frame is lifted up and removed. Also,
The recess forming mold (5), the support frame (11) and the support fitting (21) are reused.

FIG. 6 is a sectional view showing a state in which the column base (28) is leveled by the level metal fitting (4) and the grout (27) is filled thereunder. That is, the end plate (29) is welded to the lower end of the column base (28), and this end plate (29) is placed on the head of the support bolt (20) of the level metal fitting (4) and the support bolt The level is adjusted by rotating (20) and then the grout is filled in the recess (1) below. (30) is the outer wall panel on the outside of the column base (28), (31)
Also shows the interior material of the inside.

[0017]

As described above, according to the present invention, the first
The level metal fitting can be installed at a predetermined height simply by inserting the level metal fitting into the opening of the support material and inserting the second support material laterally under the head of the level metal fitting. Also, after the foundation concrete has hardened, it can be removed by simply pulling out the second support member to the side and lifting the first support member upwards, so installation and removal are easy and efficient work. Is possible.

Further, as shown in the embodiment, the first support member is also used as a formwork for forming a recess at the top end of the basic concrete, so that the first support member specially supports the level metal fittings. It is possible to obtain the effect that it is not necessary to install the support member.

[Brief description of drawings]

FIG. 1 is a perspective view of a base top end in which a level metal fitting is embedded.

FIG. 2 is a perspective view of an essential part showing an installed state of the level metal fitting of the present invention.

FIG. 3 is a vertical cross-sectional view showing a state after foundation concrete is poured.

FIG. 4 is an enlarged cross-sectional view of a main part of the installation state of the level metal fitting.

FIG. 5 is a perspective view of an essential part of a bottom portion of the mold of the present invention showing a method of installing a level metal fitting.

FIG. 6 is a vertical cross-sectional view of a main part showing a support structure of a lower end of a column base.

[Explanation of symbols]

 (1) Recesses (2) Foundation concrete (3) Anchor bolts (4) Level fittings (5) Forming tool for forming recesses (8) Foundation formwork (16) Opening (20) Support bolts (21) Support fittings (25) (26) Notch

Claims (4)

[Claims] 1. A support device for a level metal fitting, comprising a metal fitting body embedded in basic concrete and a support bolt screwed into an upper end of the metal fitting body, the level metal fitting supporting device straddling between the base concrete placing forms. And a first support member having an opening for projecting the level metal fitting installed between the molds upward, and a forked shape when viewed from a plane,
Further, the support of the level metal fitting for the column base, characterized in that it comprises a second support member which is laterally fitted and inserted between the lower surface of the head of the support bolt and the upper surface of the first support member. apparatus. 2. The second support member is U-shaped when viewed from the side, and has a notch formed by open ends of an upper piece and a lower piece of the U-shape. The support device for a level fitting for a column base according to claim 1, wherein the support device is formed in a bifurcated shape. 3. The pillar according to claim 2, wherein the second support member is formed in a pair so as to overlap with each other between the lower surface of the head of the support bolt and the upper surface of the first support member. Support device for level metal fittings for legs. 4. The first supporting member is a formwork for forming a recess at the top end of the foundation concrete.
Support device for level metal fittings for column bases.