JPH0921235A - Column erecting accuracy correction method in drive floor advance rise type building construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct the erection accuracy of a column (steel frame column) in a drive floor advance rise type building construction method. SOLUTION: One end of a tensile material 2 is fixed to a drive floor 1, the other end of it is fixed to an existing structural body 3 at an angle which produces a correction force roughly in the horizontal direction relative to the direction to correct column erection error, and the drive floor 1 is raised slightly in order to correct the erection error of a column 4 by using the resultant force of a proper tension generated in the tensile material 2 and the rising force of the drive floor 1 as a correction force. Then the column 4 is connected fixedly to a beam steel frame 5 of next upper floor. Because the vertical accuracy of multiple steel frame columns can be corrected at once through the drive floor, the number of cables used is not in proportion to the number of columns. It may be less, and also a lever block is not needed. Thus labor is less needed and, accordingly, the work period can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention firstly raises a driving floor for a roof substitute used as a top floor of a building,
The present invention relates to a method of correcting the erection accuracy of a pillar (steel frame pillar) at the time of construction, which is carried out in a driving floor preceding ascending type construction method for advancing the construction work of the next upper floor on the floor immediately below the driving floor.

[0002]

2. Description of the Related Art In a conventional method of constructing a building using a general tower crane or the like, after temporarily assembling about three layers of steel columns above the main floor, a plurality of wires are attached to the tops of the respective steel columns. Is attached to four sides, eight sides, the building accuracy of each steel column is measured using a transit, etc., and if there is an error, pull a wire suitable for correcting the error among the plurality of wires with a lever block or the like, A method of correcting the accuracy of building steel columns one by one is used.

However, the above method cannot be applied as it is to the driving floor preceding ascending type construction method, and a special embodiment of a method for correcting the accuracy of constructing a steel column peculiar to the driving floor preceding ascending type construction method, etc. There is no.

[0004]

SUMMARY OF THE INVENTION The above-mentioned method for correcting the accuracy of the conventional general steel-framed columns uses a plurality of wires attached to each steel-framed column and a lever block or the like for each wire. Therefore, a lot of temporary equipment will be needed. Further, since the work of attaching the wire to the top of the steel column is performed at a height of about 12 m from the main floor, it is a troublesome work in a dangerous place. Furthermore, after temporarily assembling the steel frame with rough accuracy, the work of correcting the steel frame column construction accuracy is performed, and therefore several days are required until the accuracy is finally ensured, which leads to a longer construction period.

Therefore, an object of the present invention is to provide a method of correcting the accuracy of erection of a steel column that can reduce the temporary materials and labor and the construction period by making the most of the features of the construction method of first ascending type drive floor. is there.

[0006]

[Means for Solving the Problems] As a means for solving the above-mentioned problems, a method of correcting the erection accuracy of a pillar in a driving floor preceding ascending type construction method according to the present invention is such that a tension member 2 is attached to a driving floor 1. One end is fixed, and the other end of the tension member 2 is fixed to the existing frame 3 at an angle that generates a correction force in a substantially horizontal direction in a direction for correcting the pillar construction error, and the driving floor 1 is slightly raised. Then, the construction error of the pillar 4 is corrected using the resultant force of the appropriate tension generated in the tensile member 2 and the ascending force of the driving floor 1 as a correction force, and thereafter, the beam steel frame of the pillar 4 and the next upper floor. It is characterized in that 5 is permanently joined and fixed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows the building 3 up to the Nth floor of the building
After completion of the construction of No. 3, the stage of advancing the construction of the frame is shown, for example, the beam steel frame 5 of the next upper floor (N + 1 floor) is assembled on the floor of the frame 3 on the Nth floor. A plurality of layers of steel-framed columns 4 are erected substantially vertically upward from the frame 3, and a push-up device 6 that raises by taking a reaction force to the steel-framed columns 4 is attached so as to raise the drive floor 1 in advance. . After completing the assembly of the beam steel frame 5 etc. on the next upper floor on the N-th floor permanent floor, drive floor 1
Then, the beam floor 5 and the like are lifted to the N + 1th floor position by directly raising the drive floor 1 in the form of being suspended by the hanging tool 7, and temporarily joined to the steel column 4.

Before the main joining of the beam steel frame 5 is performed, as described above, the vertical accuracy of the steel frame column 4 built in advance is confirmed by a transit or the like. When an erection error is found, first, one end of the tension member 2 is fixed to the bracket 8 previously attached to the drive floor 1, and the other end of the tension member 2 corrects the erection error of the steel column 4. It is fixed to the bracket 8 prepared on the existing frame 3 at an angle that generates a correction force in a substantially horizontal direction. A wire, a steel rod, or the like is used as the tensile member 2, and a plurality of the tensile members 2 are used depending on the situation of the building error.
After that, when the driving floor 1 is slightly raised, a corresponding tensile force is generated in the tensile member 2 due to the ascending force.
As a result, a resultant force of the ascending force and the tensile force is generated in a substantially horizontal direction, and the resultant force serves as a correction force, and the steel frame column 4 having a building error is pushed through the driving floor 1 in a direction to eliminate the error. . Therefore, while monitoring with the transit, etc., the driving floor 1
By continuing to rise, the correction of the erection accuracy of the steel column 4 is achieved. In this way, the steel frame column 4 in which the construction error is corrected can be firmly fixed in the corrected state by the main connection with the beam steel frame 5 that is temporarily connected. After the completion of the correction work, the drive floor 1 is lowered to the original position, the tension member 2 is removed, and the construction work is started again. After that, by repeating the same process, the construction of the building progresses with high accuracy while eliminating the error in the method of constructing the steel column 4.

In FIG. 1, all the steel columns 4 are corrected at once through the drive floor 1, whereas in FIG. 2, the rightmost steel column 4 in which the direction of the building error is not common is the drive floor 1. An example is shown in which the length is unreachable and the structure is not affected by the correction work. That is, according to the correction method of the present invention, the plurality of steel frame columns 4 can be corrected at once through the drive floor 1, but the steel frame columns 4 having a common error are selected and corrected depending on the content of the error. And

[0010]

EFFECTS OF THE INVENTION The method for correcting the accuracy of the pillar construction in the driving-floor advance climbing construction method according to the present invention can correct the vertical accuracy of a plurality of steel columns at once through the driving floor, so that the wire to be used is used. The number of columns is not proportional to the number of columns and can be a small number, and a lever block is not required. Therefore, it does not take time and labor, and the construction period can be shortened accordingly. Moreover, temporary equipment such as lever blocks is not required, which contributes to cost reduction.

[Brief description of drawings]

FIG. 1 is a front view of a push-up device according to the present invention.

FIG. 2 is a front view of a push-up device showing a different embodiment.

[Explanation of symbols]

 1 Drive floor 2 Tensile material 3 Body 4 Pillar 5 Beam steel frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Morita 1-5-5 Otsuka, Inzai-cho, Inba-gun, Chiba Incorporated Takenaka Corporation Technical Research Institute (72) Masao Miyaguchi 8-21-1 Ginza, Chuo-ku, Tokyo No. 18 Incorporated Takenaka Corporation Tokyo Main Store (72) Inventor Takao Nakamura 1-18-22 Nishiki, Naka-ku, Nagoya-shi Incorporated Takenaka Corporation Nagoya Branch (72) Inventor Makoto Nishiyama 1- Nishiki, Naka-ku, Nagoya 18-22 No. 22 Takenaka Corporation Nagoya Branch (72) Inventor Kazuhiko Hashimura 1-chome Nishiki Naka-ku, Nagoya 18-22 Takenaka Corporation Nagoya Branch (72) Inventor Kunio Aoyama Nishiki Naka-ku, Nagoya 1-18-22 Takenaka Corporation Nagoya Branch (72) Inventor Kazuhiko Tanimura 1-18-22 Nishiki, Naka-ku, Nagoya Takenaka Corporation Nagoya Inside the branch (72) Inventor Yangzo Morimoto 1-18-22 Nishiki, Naka-ku, Nagoya-shi Takenaka Corporation Nagoya Branch (72) Inventor Ken Mitsui 18-22 Nishiki, Naka-ku, Nagoya Takenaka Corporation Nagoya Branch (72) Inventor Tsutomu Fujita 1-18-22 Nishiki, Naka-ku, Nagoya City Takenaka Corporation Nagoya Branch (72) Inventor Shiro Taniguchi 1-18-22 Nishiki, Naka-ku, Nagoya Takenaka Corporation Nagoya Branch (72) Inventor Shinta Miyaguchi 1-18-22 Nishiki, Naka-ku, Nagoya City Takenaka Corporation Nagoya Branch (72) Inventor Minoru Suzuki 21-21 Ginza, Chuo-ku, Tokyo Takenaka Civil Engineering Works No. 1 Stock Company

Claims (1)

[Claims] 1. A driving floor advance ascending type construction method in which a push-up device that applies a reaction force to a pillar raises the driving floor in advance and advances the construction work of the next upper floor on the floor immediately below the driving floor. One end of the tension material is fixed to the other end, and the other end of the tension material is fixed to the existing frame at an angle that generates a correction force in a substantially horizontal direction in the direction of correcting the building error of the column, and the driving floor is slightly raised. Then, the building error of the pillar is corrected by using the resultant force of the tension generated in the tensile member and the ascending force of the driving floor as a correction force, and thereafter, the pillar and the beam of the next upper floor are permanently joined and fixed. A method of correcting the accuracy of how to build a column.