JP2001329693A - Erection method and device for steel column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an erection method capable of erecting a steel column safely, very accurately, even if it is large, in a short erection time at a low cost by using a lightweight winch and traction device having excellent operability. SOLUTION: Notches 1c made in vertical directions positioned in advance at predetermined intervals in upper and lower steel columns and brackets 7 projected out externally are provided and, at the time of erection and plumbing of the steel columns, engaged fittings 6 are fitted and inserted to the notches 1c of the positioned upper and lower steel columns 1a and 1b and the upper and lower steel columns 1a and 1b are temporary fixed by temporary fittings, lever type hoists 3 are linked to brackets 7 engaged fittings 6, a chain 4 is tensioned by the lever type hoists 3, the upper steel column 1a is relatively raised through the engaged fittings 6, and any tilt of steel column is corrected in this erection and method for the steel column.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for erection of a structure using an iron column, and more particularly to an operability and safety using a hoisting traction device, and a high accuracy of erection. The present invention relates to a method and an apparatus for inserting a pillar.

[0002]

2. Description of the Related Art A conventional method of installing a steel pole is as follows: (1) After temporarily assembling the pillar using a lever type hoist and a wire or a chain, a vertical standing adjustment of a steel pole is performed in block units. , (2) Jack at the joint of the pillar,
A method of adjusting the vertical standing of each iron pole at the time of building using wedges or the like has been adopted.

[0005] Next, the above-mentioned conventional method of inserting a pillar will be described with reference to FIGS.

FIG. 5 shows the above-mentioned conventional method (1). In this method, a new iron pole 22 is lifted above an existing iron pole 21, and both are bolted together with an erection piece 23a.
Furthermore, after temporarily connecting a new steel beam 23b, a wire 23c for the installation adjustment is stretched diagonally in the constructed frame, and the length of the wire 23c is adjusted by a turnbuckle or a chain block 23d. The inclination of the new iron pole 22 is adjusted.

In this method, when the steel pole is thickened and the steel pole becomes thick as in the current situation, it is difficult to adjust the installation using only the wire, and when installing the steel beam, the lower part of the steel pole is only temporarily fixed, which is dangerous. Met.

FIG. 6 shows the conventional method (2).
According to this method, a new iron pole 22 is suspended above an existing iron pole 21, and a splice plate 24 is sandwiched so as to sandwich the flanges 21 a, 22 a at a connection portion between the existing iron pole 21 and the upper iron pole 22.
, And temporarily tighten with the bolts 25, attach the jack mounting jig 26 to the upper and lower flange portions of the splice plate 24, attach the jack 27 between the upper and lower jack mounting jigs via the pins 28, and expand and contract the jack 27. Then, after adjusting the inclination of the new iron pole 22 and adjusting the insertion, the bolt 25 of the splice plate 24 is adjusted.
Are fixed to connect and fix both iron poles.

In this method, since a jack is used,
It is heavy and inferior in operability, and the jig used for these is a dedicated jig that has no other purpose and is expensive, so that improvement in construction cost has been required. In addition, heavy jacks are used at high places, which is not desirable from the viewpoint of safety management of construction.

[0008]

As described above, the conventional building method is difficult to adjust when building a thick steel pole and building it at a high place. It was not satisfactory in terms of performance and safety.

The present invention solves the above-mentioned problems in the conventional erection method, and uses a tightening means, particularly a hoisting traction device which is lightweight and easy to operate, and is safe and highly accurate even with a thick iron pole. Another object of the present invention is to provide an inexpensive installation method and an apparatus thereof that can reduce the installation work time.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has vertical notches formed at upper and lower iron poles at predetermined intervals in advance so as to be positioned above and below a joint end so as to face each other, Provide a bracket protruding outward in the main body, insert the fittings into the cuts of the aligned upper and lower iron poles when installing the iron pole, temporarily fix the upper and lower iron poles through the temporary fixing metal, and The tightening means is engaged with the fitting, the fitting is tilted by the tightening means, and the upper iron pole is relatively raised through the fitting, thereby correcting the inclination of the iron pole. It is a building method.

According to the present invention, by providing a vertical notch and a bracket protruding outwardly, which are previously aligned on the iron column at the top and bottom of the joint, it is only necessary to newly prepare a fitting fitting to be inserted into the notch. By using a conventional tightening means, especially a hoisting traction device such as a lever type hoist, it is possible to correct the inclination of the iron pole at the time of building,
It is lightweight, excellent in operability, inexpensive, and can provide a method of installation that can safely perform the installation operation.Furthermore, a fitting metal fitting is inserted into the notch of the iron pole at the time of installation, so a temporary fixing plate is used. The temporary fastening function can be complemented, and an excellent temporary fastening function can be provided.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that upper and lower iron poles are provided with vertical cuts which are positioned at predetermined intervals above and below a joint end and face each other. Is provided with a bracket that protrudes outward, and when inserting the iron pole, the fittings are inserted into the cuts of the aligned upper and lower iron poles, and the upper and lower iron poles are temporarily fixed via the temporary fixing metal, and the bracket is fitted. It is characterized in that the tightening means is engaged with the metal fitting, the fitting metal fitting is tilted by the tightening means, the upper iron pole is relatively raised through the fitting metal fitting, and the inclination of the iron pole is corrected. By providing a vertical notch aligned with the steel pole and a bracket protruding outward, it is only necessary to newly prepare a fitting fitting to be inserted into the notch, and a turnback conventionally used as a tightening means is conventionally provided. And a hoist such as a lever-type hoist with excellent operability can correct the inclination of the steel pole at the time of installation, so it is lightweight, excellent in operability, and specially designed for installation. Since no tools are used, it is possible to provide an inexpensive and safe installation method, and furthermore, since a fitting is inserted into the notch of the iron pole, horizontal movement of the iron pole is prevented, and It has the effect of complementing the temporary fixing action of the metal fittings and providing an excellent installation method with a temporary fixing function.

According to a second aspect of the present invention, a temporary fixing member is fixed to one of the upper and lower iron poles by narrowing a cut in a vertical direction, a fitting metal fitting is fixedly mounted on the temporary fixing metal fitting, and the fitting metal fitting and the other of the fitting metal fitting are fixed. The tightening device is interposed between brackets provided on the iron pole, and the upper and lower iron poles are restricted in horizontal movement by a fitting fitting inserted into the notch, and the vertical movement of one iron pole is restricted. Is regulated by the tensioning action of the lever type hoist interposed between the fitting fitting fixed to the temporary fixing metal fitting provided on the other side and the bracket provided on the other iron pole. Have.

According to a third aspect of the present invention, there is provided a hoisting and pulling device for erection of an iron pole, comprising a fitting fitting to be inserted into a vertical cut of an upper and lower iron pole, and a conventional lever-type hoist. By providing a new fitting, a device for laying a steel pole can be provided, so that an inexpensive and operable laying device can be provided with little use of a dedicated tool for laying. Having.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 1 (a) is a front view showing a method of setting in Embodiment 1 of the present invention, FIG. 1 (b) is a plan view thereof, and FIG.
FIG. 3 is an enlarged front view showing a temporary fixing metal part, and FIG. 3 is an explanatory diagram of an operation of correcting the inclination of the iron pole at the time of installation according to the first embodiment.

In the drawing, reference numeral 1 denotes an iron pole; 1a, an upper iron pole suspended and temporarily fixed on an existing lower iron pole 1b by a crane or the like; and 1c, which are previously positioned on the iron poles 1a, 1b and provided so as to face each other. Vertical notch, 2
Is a horizontal gap provided at a continuous portion between the upper iron column 1a and the lower iron column 1b, 3 is a lever type hoist provided between the upper and lower iron columns 1a and 1b, 3a is a handle of the lever type hoist, 3
b is a hook, 4 is a hoisting chain, 4a is a hook, 5 is a sling, 5a is a hook, 6 is a fitting that is fitted into a vertical notch 1c provided in advance on upper and lower iron poles, and 6a is A step portion of the fitting, 7 is a bracket attached to the upper iron pole 1a, 8 is a U-shaped ring attached to a hole formed in the fitting 6 and the bracket 7, 8a is a connection bolt, 9 is a lower iron pole. Temporary fixing fittings 10 provided with a notch 1c narrow in 1b are connecting bolts for connecting the temporary fixing fitting 9 and the fitting fitting 6.

Next, a description will be given of the operation of inserting the iron pole in the present embodiment.

First, the upper iron pole 1a is lifted on the lower iron pole 1b by a crane or the like, and the lower end of the upper iron pole 1a is connected to the lower iron pole 1a.
b, the notches 1c provided in the upper and lower iron columns 1a, 1b are aligned, and the fitting 6 is fitted into the aligned notch 1c until the step 6a engages with the iron column 1. Then, the fitting 6 is fixed to the temporary fixing metal 9 with the bolt 10.

Next, the upper hook 5a of the sling 5 is engaged with the bolt 8a of the U-shaped ring 8 attached to the bracket 7 fixed to the upper iron pole 1a, and the lower hook 5a is connected to the upper hook of the lever type hoist 3. Then, the lower hook 4a of the lever type hoist 3 is engaged with the bolt 8a of the U-shaped ring 8 attached to the fitting 6.

In this state, the upper and lower iron poles 1a and 1b are restricted in horizontal sliding by a fitting metal fitting 6 inserted into the notch, and the vertical movement is reduced by a temporary fixing metal fitting 9 provided on the lower iron pole 1b. Since it is regulated by the tensioning action of the lever type hoist 3 interposed between the fixed fitting 6 and the bracket 7 provided on the upper iron column 1a, a reliable temporary fixing action can be performed.

By rotating the handle 3a of the lever type hoist 3 in a state where the upper and lower iron poles 1a and 1b are temporarily fixed, the chains 4 and 5 stretched between the bracket 7 and the fitting 6 are tensioned. The end of the fitting 6 is tilted because it is pulled upward by the chain so as to rotate upward, and the upper iron column 1a is lifted upward by the lever movement by the fitting 6.

As shown in FIG. 3, when the lever type hoist 3 is rotated, a force for lifting the end of the fitting 6 is applied, and the lever 6 is in contact with the rear surface of the fitting 6 by leverage. The upper iron column 1a relatively rises within the range of the play of the bolt 10 and the bolt insertion hole of the fitting, corrects the inclination of the iron column, and welds the connection portion between the upper and lower iron columns 1a and 1b in the corrected state. An iron pole is fixed integrally.

In the above-described embodiment, a rectangular column having a square cross section is used. However, the present invention is not limited to this. For example, a cylindrical column has the same function, and a hoisting traction device is used as a tightening means. Although a lever type hoist was used, it is not limited to this.

Although the shape of the portion of the fitting 6 to be inserted into the cut of the iron column has a substantially rectangular cross-sectional shape, the shape may be, for example, a substantially T-shape, and the shape of the iron column portion may be matched. Yes, but not limited to this. (Embodiment 2) FIGS. 4 (a) and 4 (b) show a method of embedding according to Embodiment 2 of the present invention. The difference from Embodiment 1 is that in Embodiment 1, the bracket 7 is attached to the upper iron pole. 1a, in the present embodiment, the bracket 7 is provided on the lower iron pole, and the chains 4 and 5 are tensioned by the lever type hoist 3 between the fitting 6 and the bracket 7, and through the fitting 6 The upper iron column 1a is relatively raised to correct the inclination of the iron column, and has the same function as the first embodiment.

[0025]

According to the present invention, by providing a vertical notch aligned in advance with an iron pole and a bracket protruding outward, only a new fitting metal fitting to be inserted into the notch is prepared, and the conventional fitting is provided. Using a hoisting and pulling device such as a lever-type hoist or turnbuckle, the inclination of the iron column during installation can be corrected, so that the installation operation is lightweight, excellent in operability, cheap, and safe. In addition, the upper and lower iron poles can be provided, furthermore, the horizontal sliding is regulated by a fitting fitting inserted into the notch, and the vertical movement is provided to the temporary fixing bracket provided on one iron pole. Since it is regulated by the tensioning action of the lever-type hoist interposed between the fixed fitting and the bracket provided on the other iron pole, there is an effect that reliable temporary fixing can be performed.

[Brief description of the drawings]

FIG. 1 (a) is a front view showing a method for installing a building according to the present invention. (B) is a plan view.

FIG. 2 is an enlarged front view showing a temporary fixing metal part.

FIG. 3 is an explanatory diagram of a correction operation.

FIG. 4 (a) is a front view showing another embodiment of the method of installing the present invention. (B) is a plan view.

FIG. 5 is a schematic diagram showing a conventional installation method.

FIG. 6 is a schematic diagram showing a conventional installation method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Iron pole 1a Upper iron pole 1b Lower iron pole 1c Vertical cut 2 Gap 3 Lever type hoist 3a Handle 3b Hook 4 Hoisting chain 4a Hook 5 Sling 5a Hook 6 Fitting fitting 7 Bracket 8 U-shaped ring 9 Temporary fixing fitting 10 Connecting bolt

Claims (3)

[Claims] 1. An upper and lower iron pole is provided with vertical cuts which are aligned at predetermined intervals above and below a joint end so as to face each other, and a bracket protruding outward is provided in a main body, and At the time of installation, fitting fittings are inserted into the cuts of the aligned upper and lower iron poles, the upper and lower iron poles are temporarily fixed, and a tightening means is engaged with the bracket and the fitting fitting,
A method of installing a steel pole, wherein the fitting is tilted by a tightening means, and the upper iron pole is relatively raised through the fitting to correct the inclination of the iron pole. 2. A temporary fixing member is fixed to one of the upper and lower iron poles by narrowing a cut in the vertical direction, a fitting is pivotally mounted on the temporary fixing member, and a bracket is provided between the fitting and the other iron pole. 2. The method according to claim 1, wherein a tightening device is provided. 3. A fitting according to claim 1, further comprising a fitting fitting inserted into a vertical cut of the upper and lower iron poles.
A tightening device for erection of a steel pole for performing the method described.