JPH0720278Y2 - Steel column leveling device inserted in the horizontal surface of the completed base concrete - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is a leveling device for a steel column, a bridge, a machine, etc. to be inserted into a hole to be drilled at the same time as a hole for inserting a post-installed anchor bolt on a horizontal surface of a completed base concrete. It is about.

[0002]

2. Description of the Related Art Conventionally, as a leveling method for a steel frame column, a small ridge made of cement (a small ridge having a spherical top surface, which is usually called a steamed bun) is provided on the surface of a base concrete which has been constructed. It was manufactured, and the method of adjusting the level of the steel column using this spherical mound was adopted.

However, this method requires complicated steps, curing time, poor workability, and requires skilled workers for construction, and it is difficult to secure human resources.

As an improvement, at the time of constructing the base concrete, a leveling jig provided with a spherical adjuster bolt is embedded, and the base concrete is embedded, and when the base concrete is hardened, the adjuster bolt is adjusted. , There is a device that adjusts the level of the steel column by leveling.

As a prior art similar to this device, there is a buried bolt for adjusting the height of the building foundation of Japanese Utility Model Laid-Open No. 61-140040.

According to the present invention, a spherical adjuster bolt is screwed to a support nut of an upper end opening which is buried at the time of construction of a base concrete, and the leveling is performed through the adjuster bolt and the lock nut, and then the steel frame. It is a device for adjusting the level of pillars and the like.

[0007]

[Problems to be solved by the invention] Saikai 61-14
No. 0040 and a steel frame column leveling device similar to this have the advantage that the level can be adjusted easily and quickly as compared with the conventional method.

However, when constructing the base concrete,
From burial, in the burial, for example, scaffolding,
Various setups are required, such as requiring the arrangement of craftsmen, which is complicated and troublesome. Further, according to this invention, since the base concrete is buried during the construction, the installation of the leveling device is unstable. That is, at the time of construction of the base concrete, for example, unstable movement due to the flow of the concrete is not sufficiently taken into consideration in terms of stable installation. Issues such as

[0009]

Therefore, according to the present invention, after the construction of the base concrete, a hole for inserting the leveling device is formed in the horizontal surface of the completed base concrete, and an adhesive material is provided in the hole. The following constitution was adopted for the purpose of leveling the steel column by inserting the leveling device after filling the fixing auxiliary materials such as.

That is, the steel column leveling device of the present invention which is inserted into the horizontal surface of the completed base concrete is inserted into the horizontal surface of the completed base concrete into the hole formed at the same time as the hole for inserting the post-installed anchor bolt. A steel column leveling device to be installed, wherein the steel column leveling device is
A square bolt (not limited to a square bolt in the present invention, a circular bolt may be used, for example) at the upper end of the outer cylinder inserted in the hole, and a screw at the upper portion of the inner cylinder, The insert cylinder having a collar body provided on the lower surface of the and the bottom plate provided on the bottom surface of the hole, the stopper at the lower end screwed into the insert cylinder, and the bolt head having a spherical shape. It is composed of an adjuster bolt and a lock nut provided between the adjuster bolt and the rectangular collar body of the insertion cylindrical body.

Further, in order to provide a structure that can cope with high leveling of a steel frame column on the horizontal surface of the base concrete, the following constitution is adopted.

That is, the steel-column post leveling device of the present invention inserted in the horizontal surface of the completed base concrete is inserted in the horizontal surface of the completed base concrete in the hole formed at the same time as the hole for inserting the post-installed anchor bolt. A steel column leveling device to be installed, wherein the steel column leveling device is
A collar body having a square bolt on the upper end of the outer cylinder inserted into the hole, and a screw on the upper portion of the inner cylinder, and provided on the lower surface of the square bolt,
And an insertion cylinder having a bottom plate provided on the bottom surface of the hole, a stopper at the lower end screwed into the insertion cylinder, and a spherical bolt head, and the adjuster bolt. A lock nut provided between the inserting tubular body and the square collar body, and a screw fitted on the square bolt of the inserting tubular body and provided on the upper portion of an inner cylinder placed on the collar body. It is composed of an extension cylinder, an adjuster bolt that has a stopper at the lower end to be screwed into the insertion cylinder, and has a spherical bolt head, and a lock nut provided on the adjuster bolt. ing.

[0013]

Next, the operation (construction and adjustment method) of the present invention will be described.

After the foundation concrete has been constructed, a base concrete is usually constructed thereon by using mortar or the like.

When the base concrete thus constructed (hereinafter, simply referred to as the horizontal surface of the base concrete) is hardened, the leveling device is inserted in the horizontal surface of the base concrete at the same time as the holes for inserting the anger bolts. Make a hole.

In this case, the horizontal surface of the base concrete is
It is hardened and requires no setup such as scaffolding, and it is useful and simple because it can be drilled at the same time as the hole for inserting post-installed anchor bolts.

After the hole is formed, the hole is filled with, for example, an adhesive, and then the insertion cylinder is inserted, and then the collar body is brought into contact with the horizontal surface of the base concrete. still,
As described above, several post-installed anchor bolts are simultaneously inserted (hereinafter the same).

As a result, the installation of the leveling device and post-installation anchor bolts has been completed, so normally, the next leveling device and post-installation will be performed at another location through the same operation and procedure as described above. Insert the anchor bolt.

Thereafter, the same operation and procedure are repeated as necessary.

As described above, when the level of the steel frame column is to be raised through the leveling device inserted, the lock nut is opened and the adjuster bolt is adjusted to the predetermined position.

Thereafter, the lock nut is tightened to fix the adjuster bolt position. Adjuster bolts and tightening lock nuts, etc. as described above are provided on each of the other insertion cylinders, and the adjuster bolts are also made in the same operation and procedure. Using, the leveling of each steel column is performed, for example.

If the leveling position cannot be ensured by inserting one insertion cylinder, first, the square bolt of the insertion cylinder is inserted into the hole for inserting the leveling device, and the extension cylinder is inserted. After the bodies are integrated by fitting, welding, etc., they are inserted into the holes, for example, with an adhesive or the like.

Thereafter, when the insertion cylinder is held, the lower end of the extension cylinder is fitted into the square bolt of the insertion cylinder, and the extension cylinder is extended to the flange body. The lower end surface of the cylinder is abutted.

Then, an adjuster bolt is screwed on the screw of the extension cylinder. As a result, the insertion of the leveling device is completed, so that the next leveling device is usually installed at another location through the same operation and procedure as described above.

As described above, when the level of the steel column is to be raised through the leveling devices provided respectively,
For example, the lock nut of one of the adjuster bolts is opened, and the adjuster bolt is adjusted to determine the predetermined position.

Then, the lock nut is tightened to fix the adjuster bolt position. Further, each of the other insertion cylinders, each extension cylinder provided in each insertion cylinder, and each adjuster bolt provided in each extension cylinder is also made in the same operation and procedure, Using the adjuster bolts fixed in this position, for example, the leveling of each steel frame column is performed.

The post-installed anchor bolts are handled in the same manner and will not be described.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a cylindrical bottomed type insertion cylinder which is inserted into a hole B formed in the constructed base concrete A, and a screw 2 is formed on the upper part of the inner cylinder of the insertion cylinder 1. A hexagonal, square or other square bolt 3 protruding from the hole B is provided at the upper end of the outer cylinder, and the screw 2 is engraved up to the inner peripheral portion of the square bolt portion. Has been done.

Reference numeral 4 in the figure denotes a bottom plate forming the bottom of the insertion cylinder 1.

An adjuster bolt 6 having a spherical bolt head 5 is screwed into the inner cylinder portion 1a of the insertion cylinder 1, and the adjuster bolt 6 is screwed and unscrewed to adjust the bolt. The bolt 6 moves up and down.

A stopper 7 is provided at the lower end of the adjuster bolt 6 in order to prevent the adjuster bolt 6 from being pulled out.

Reference numeral 6a indicates a square bolt of the adjuster bolt 6.

In the figure, reference numeral 8 denotes a collar body for sealing the hole B provided on the lower surface of the square bolt 3 of the inserting cylinder body 1.
An extension cylinder, which will be described later, is placed on the.

Reference numeral 9 in the drawing denotes a lock nut for tightening the adjuster bolt 6.

If the leveling dimension is long, the extension cylinder 10 having the screw 10a at the upper part of the inner cylinder shown in FIG.
To use. That is, the lower end of the extension cylinder 10 is brought into contact with the upper surface of the collar body 8 and the lower end thereof is connected to the square bolt 3.
Then, the extension cylindrical body 10 is fixed to the insertion cylindrical body 1 by integrating them by means such as fitting and welding.

An adjuster bolt 6'provided with a lock nut 9 is screwed onto the screw 10a above the integrated insertion cylinder 1 and extension cylinder 10 and the adjuster bolt 6'is used. It corresponds to a high level.

The structure in which the extension cylinder 10 is fitted and integrated with the insertion cylinder 1 has been described, but the extension cylinder 10 can be fitted and integrated with the insertion cylinder 1 excluding the adjuster bolt 6 and the lock nut 9. Is also possible. Further, the adjuster bolt 6'fitted to the extension cylinder 10 can be replaced with the insertion cylinder 1 having the adjuster bolt 6 and the lock nut 9 (however, the shape of the extension cylinder 10 can be changed. It is considered necessary.).

Further, as shown in FIG. 3, the outer cylindrical portion of the insertion cylindrical body 1 may be provided with knurls 11 and other irregularities in order to improve the close contact with an adhesive material described later.

3 and 4 show an example of a modification of the lock nut 9. FIG. 3 shows a knurled lock nut 19 and FIG. 4 shows a plate-shaped lock nut 29, respectively.

In the figure, C indicates an adhesive (which is an example) for joining the insertion cylinder 10 and the concrete portion.

[0042]

As described in detail above, according to the present invention, the adjuster bolt having the stopper can be freely moved up and down in the horizontal surface of the completed base concrete and in the hole formed at the same time as the hole for inserting the post-installed anchor bolt. Since the insertion cylindrical body that is screwed is inserted and the level of the steel column is adjusted via the spherical bolt head of the adjuster bolt, the following effects are obtained.

(1) Since it is a horizontal surface of the base concrete on which construction has been completed, there is no need to set up scaffolds, etc., and it is simple and the workability is improved.

(2) Arrangements made by craftsmen, workers, etc. are reduced, useful, and simplified.

(3) The installed base concrete horizontal surface can be used for insertion, and a simple and reliable installation position can be secured.

(4) The versatility is improved.

Further, since the present invention has a structure capable of promptly responding even to high leveling through the extension cylinder,
It has the following effects.

(5) A high level can be supported.

(6) The parts (members) can be effectively used.

(7) It is excellent in inventory management.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an example of the present invention.

FIG. 2 is a partially cutaway front view showing an example in which an extension cylinder is used.

FIG. 3 is a partially cutaway front view showing another example of the present invention.

FIG. 4 is a partially cutaway front view showing another example of the present invention.

[Explanation of symbols]

 1 Inserted cylinder 2 Screws 3 Square bolt 4 Bottom plate 5 Bolt head 6 Adjuster bolt 6'Adjuster bolt 7 Stopper 8 Collar body 9 Lock nut 10 Extension cylinder 11 Knurled A Installed base concrete horizontal surface B Hole C Adhesive

Claims (4)

[Scope of utility model registration request] 1. A horizontal surface of the completed base concrete,
A steel-column post leveling device that is inserted into a hole that is drilled at the same time as the post-installation anchor bolt insertion hole, wherein the steel-column post leveling device has a corner at the upper end of the outer cylinder that is inserted into the hole. Type bolt and a collar body having a screw on the upper part of the inner cylinder and provided on the lower surface of the square type bolt,
And an insertion cylinder having a bottom plate provided on the bottom surface of the hole, a stopper at the lower end to be screwed into the insertion cylinder, and a bolt head having a spherical shape, and an adjuster bolt. A steel column post leveling device that is inserted into a constructed horizontal surface of a concrete constructed by a lock nut that is provided between the insert tubular body and the square collar body. 2. A horizontal surface of the installed base concrete,
A steel-column post leveling device that is inserted into a hole that is drilled at the same time as the post-installation anchor bolt insertion hole, wherein the steel-column post leveling device has a corner at the upper end of the outer cylinder that is inserted into the hole. Type bolt and a collar body having a screw on the upper part of the inner cylinder and provided on the lower surface of the square type bolt,
And an insertion cylinder having a bottom plate provided on the bottom surface of the hole, a stopper at the lower end to be screwed into the insertion cylinder, and a bolt head having a spherical shape, and an adjuster bolt. A lock nut that is provided between the insertion tubular body and the square flange body, and a screw that is fitted to the square bolt of the insertion tubular body and is provided on an upper portion of an inner cylinder that is placed on the flange body. It is composed of an extension cylinder, an adjuster bolt that has a stopper at the lower end that is screwed into the insertion cylinder, and has a spherical bolt head, and a lock nut that is provided on the adjuster bolt. A steel column leveling device that is inserted into the existing horizontal surface of the concrete. 3. A horizontal surface of the constructed base concrete,
A steel-column post leveling device that is inserted into a hole that is drilled at the same time as the post-installation anchor bolt insertion hole. Type bolt and a collar body having a screw on the upper part of the inner cylinder and provided on the lower surface of the square type bolt,
And a bottom plate provided on the bottom surface of the hole, an adjuster bolt having a spherical head with a stopper at the lower end screwed into the insertion cylinder, and a bolt head, and the adjuster bolt. A lock nut provided between the inserting tubular body and the square collar body; an extension tubular body that abuts on the flange body of the inserting tubular body and is fitted into a square bolt; Insertion cylinder having a square bolt on the upper end of the outer cylinder fitted to the cylinder, a screw on the upper part of the inner cylinder, and a collar body provided on the lower surface of the square bolt and a bottom plate provided on the bottom surface of the hole. And the adjuster bolt having a spherical bottom with a stopper at the lower end to be screwed into the insertion cylinder, and between the adjuster bolt and the square flange of the insertion cylinder. The lock nut installed on the Steel columns leveling device that is inserted in the door horizontal plane. 4. The rotation preventing means such as a knurl or unevenness is provided on the outer peripheral surface of the insertion cylindrical body according to claim 1, claim 2, or claim 3. Steel column leveling device inserted in the horizontal surface of the completed base concrete of 3.