JP2642837B2 - How to fix steel frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a steel frame in a building construction work of a steel structure.

[0002]

2. Description of the Related Art In the construction of a steel-framed building, it is necessary to assemble a steel frame, check its construction accuracy, correct it to a specified accuracy, and then perform full tightening of bolts and welding of columns and beams.

As shown in FIG. 4, a conventional correction method is to stretch a brace wire 20 or a brace chain 21 on a diagonal line of columns a, b and c, d,
The tension was generated manually by using the force.

[0004] In the repair work, it is preferable to apply horizontal force to the pillar to be repaired and to move the top of the pillar to secure the building accuracy. In contrast, the conventional method stretches the brace wire 20 or the brace chain 21 in an oblique direction. For this reason, a tension 1.5 to 2.0 times the required force is required.

[0005] The tension is generated by the lever hoist 22 or the turnbuckle. However, the tension is insufficient, and the tension is insufficient.
Many breakages of the brace wire 20 and the lever hoist 22 have occurred.

[0006] The attachment and removal of the brace wire 20 and the lever hoist 22 and the like are manual operations, and the repair work is performed at a high place because the floor is not installed. In addition, the loosening of the brace wire 20 is a manual operation, and the workability is poor and dangerous. In addition, the measurement of the installation accuracy,
The accuracy of the measurement is poor because it is performed using a piano wire with a piano wire lowered along a pillar and a steel tape measure. Further, the record of the measurement is only written in the memo pad, and there is a problem in storage.

Japanese Patent Laid-Open Publication No. 50-79355 discloses a technique for monitoring the verticality of a column by attaching X-axis and Y-axis selcin oscillators to a gimbal mechanism. However, this known technique corrects a columnar body in an underground excavation hole with a vibration isolator and cannot be applied to the construction of a steel frame on the ground. Japanese Patent Laid-Open Publication No. Sho 59-102061 discloses a technique in which a small jack and an angle detector are provided on the side surface of a pillar to correctly build the pillar. However, according to this known technique, the reaction force of the jack cannot be sufficiently supported, and the correction operation cannot be performed sufficiently and reliably. Further, Japanese Patent Application Laid-Open No. 62-13659 discloses a technique in which a gusset plate is attached to a pillar for span adjustment, and a jack for maintaining the verticality of the pillar is provided between the gusset plate and the beam. I have.
In this known technique, there is no need to modify the verticality, since the columns are already erected vertically.

[0008]

Therefore, according to the present invention, there is no work requiring human power, such as the installation of a wire or a chain or a swing-up operation. It is intended to provide a way.

[0009]

According to the present invention, in a method of correcting a steel frame erection in which a new frame is erected on the top of a fixed frame, both beams orthogonal to two of the new frames are provided. A two-axis tilt sensor is placed at a certain distance from the center line of the frame material of the part, and these two-axis tilt sensors are connected to a computer, and the beams and the fixed frame below them are connected. Connected with a beam part provided on the material by a connecting body consisting of a correction cylinder, and
The display from the origin by the inclination of the center line of the new building material is displayed on the display screen by the axis and the Y axis, and those two correction cylinders are operated based on the display screen of the computer to display the new building material. The S axis and the Y axis are matched with the origin.

[0010] The correction cylinder is connected to a cylinder with a lock for adjusting the floor height, two of which are connected by an angle fixed or movable orthogonal arm having a suspension ring, and moved by a crane via the suspension ring. Is preferred.

[0011]

Therefore, the two biaxial tilt sensors attached to the two orthogonal beams of the newly-installed skeleton material indicate the deviation of the X-axis and the Y-axis of the newly-installed skeleton material on the computer. Therefore, the correction cylinder may be operated to be positioned at the origin. As described above, according to the present invention, it is possible to reliably and easily correct the skeleton material vertically. Since the correction cylinder is provided between the beams, the reaction force can be sufficiently obtained, and the moment required for the correction can be sufficiently increased depending on the installation position on the beam. Therefore, the correction cylinder can be reduced in size accordingly. Further, by associating the computer with the correction cylinder, automatic correction can be performed and records can be stored on a card disk.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, three orthogonal beam portions 3A to 5A protrude from a column portion 2A of a fixed frame member 1A, and are connected to beam members 6 to 8, respectively.

At the top of the fixed frame member 1A, a new frame member 1 is erected, connected by an erection piece 9, and three beam portions 3 to 5 are protruded. Reference numeral 2a is a groove for welding.

In correcting the column center line C of the frame material 1, the two-axis small tilt sensors 10 are respectively mounted at positions separated from the center lines of the beam portions 3 and 4 by a fixed distance L, and are mounted on a personal computer (not shown). Connect each.

Next, taking the beam portion 3 as an example, a cylinder 12 with a lock for adjusting the floor height and a correction cylinder 13 are vertically arranged between the beam portions 3A and 3 of the fixed frame member 1A. They are connected by a united body 11a integrally connected, and connected to a hydraulic pump via an operation valve (not shown). The joint 11a and the joint 11b on the side of the beam 4 are connected and integrated by an arm 15 orthogonal to the suspension ring 14.

On the display screen 16 on the X and Y axes of the personal computer, changes x and y (points P) from the origin 0 (vertical line V) due to the inclination of the center line C are displayed. The mounting accuracy of the column 2 and the beams 3, 4 is measured at the time of manufacturing at a steel frame factory, and the correction value is input to a computer. Origin 0 (vertical line V) without using a computer
It is also possible to digitally display the amount of change (angle) from.

Next, in the illustrated example, the correction cylinder 13 of the combined body 11a is contracted to move the point P on the X axis, and
The correction cylinder 13 of the other combined body 11b is extended so that the point P on the Y axis coincides with the origin 0. Thereby, the inclination of the center line C of the pillar portion 2 is corrected, and is set within the allowable building accuracy. Therefore, the frame member 1 is fixed to the fixed frame member 1A by welding with the welding groove 2a.

If the floor height exceeds the adjustment range of the cylinder 12 with a lock for floor height adjustment, or if the cylinder 12 is not used, a temporary unillustrated temporary part is provided in the middle of the pillar 2A of the fixed frame member 1A. The receiving beam can be attached by welding to be a reaction force receiving.

Further, the correction cylinder 13 can be expanded and contracted by a signal from a personal computer to perform automatic correction. Further, the inclination angle data before and after the correction can be stored in a hard disk of a computer or the like, and can be easily left as a record, thereby improving the reliability of the record. Further, both the joints 11a and 11b can be moved and set by the suspension ring 14 without manual operation.

[0021]

As described above, according to the present invention, the following excellent effects can be obtained. (A) The reaction force of the correction cylinder can be sufficiently obtained, and a large moment can be obtained. (B) The correction cylinder can be operated by the display of the computer, and the operation is simple and accurate. You can also record. (C) Workability is good and high accuracy can be ensured regardless of human power. (D) Since the biaxial tilt sensor is provided on the beam, there is no influence of the torsion of the frame material.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating one embodiment of the present invention.

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a view showing an example of a display on a display screen.

FIG. 4 is a front view illustrating a conventional method.

[Explanation of symbols]

 C: Center line V: Vertical line 1, 1A: Frame material 2, 2A: Column portion 2a: Groove for welding 3-5, 3A-5A: Beam portion 6- Reference Signs List 8 beam member 9 erection piece 10 biaxial small-sized tilt sensor 11a, 11b combined body 12 cylinder with lock for floor height adjustment 13 cylinder for correction 14.・ Hanging ring 15 ・ ・ ・ Arm 16 ・ ・ ・ Display screen 20 ・ ・ ・ Brace wire 21 ・ ・ ・ Brace chain 22 ・ ・ ・ Lever hoist

 ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-59-102061 (JP, A) JP-A-62-113659 (JP, A) JP-A-2-13661 (JP, A)

Claims (1)

(57) [Claims] 1. A steel frame erection correction method in which a new skeleton material is erected on the top of a fixed skeleton material, a fixed distance from a center line of the skeleton material of both beams orthogonal to two of the new skeleton materials. A two-axis tilt sensor is placed at a distance from each other, and these two-axis tilt sensors are connected to a computer. Between the two beams and the beams provided on the fixed frame member below them. It is connected by a joint consisting of a cylinder for correction, and the display screen on the X-axis and Y-axis of the computer displays the change from the origin due to the inclination of the center line of the newly-built frame material, and based on the display screen of the computer By operating the two correction cylinders, the S axis and the Y
A method of correcting steel-frame building, characterized by aligning the axis with the origin.