JP2002317452A - Erection structure for steel column, and method for erection thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide erection structure for a steel column, and a method for erection thereof in which stages of work till erection of a steel column for a first node are reduced to shorten time till start of erection. SOLUTION: In this erection structure 1 for a steel column, a lower slide plate 3 provided with a level adjusting device 11 is installed on an end plate 7 of a pile head 2, and an upper slide plate 4 is provided on the level adjusting device 11. The steel column 5 is installed on the upper slide plate 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel column construction method and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, a construction method from the construction of a pile to the construction of a steel column in the first section is performed by a method as shown in FIG. First, after placing the pile 20, the root is cut off and the pile head is processed. Next, foundation frame construction, that is, installation of the footing foundation 21, underground beam 22, anchor bolt 23, and construction of the lowest floor 24 are performed. Next, back-filling around the footing foundation 21 is performed to make the steel column 25 of the first section.
Build.

[0003]

However, the above-mentioned construction method involves many steps up to the start of the construction of the steel column in the first section.
There was a problem that it took time to start the construction.

The present invention has been made in view of these problems, and an object of the present invention is to reduce the number of steps required to start the construction of a steel column in the first section, thereby shortening the time required to start the construction. It is an object of the present invention to provide a steel column construction method and a construction method for the same.

[0005]

Means for solving the above-mentioned problems are as follows. The construction of the steel column according to the first aspect of the present invention is characterized in that a lower slide plate provided with a level adjusting device is attached to an end plate of a pile head. An upper slide plate is installed on the level adjustment device, and a steel column is installed on the upper slide plate. At the end plate of the pile head, a lower slide plate with a level adjustment device is installed to adjust the displacement of the pile center and the level of the pile head, and an upper slide plate is installed at the level adjustment device, It is characterized by adjusting the displacement of the pile core by installing a pillar on the slide plate.

[0006] Since the steel column is directly installed on the pile head without using the footing foundation, the upper load can be smoothly transmitted to the pile. The steps up to the start of the construction of the steel column in the first section can be omitted, and the time until the start of the construction can be shortened. After the piles have been set, the steel column of the first section can be built immediately, so that the superstructure can be built faster than usual.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the steel column construction method and the steel column construction method of the present invention will be described below in detail with reference to the drawings. First, an embodiment of the construction method of a steel column will be described, and then an embodiment of a construction method of a steel column will be described. Only the configuration will be described with different reference numerals.

FIGS. 1 and 2 show the construction of a steel column. The steel column construction structure 1 is configured such that a steel column 5 is installed via a lower slide plate 3 and an upper slide plate 4 installed on a pile head 2. Pile 6 is P
The pile is an HC pile, that is, a high-strength centrifugal prestressed concrete pile, and an end plate 7 is provided on the pile head 2.
Then, the lower slide plate 3 is bolted using the head fixing hole 8 of the end plate 7, and the bolt 9 is inserted into the elongated hole 10 facing one side, so that the lower slide plate 3 is moved in one direction, that is, It can slide in the X direction. Also, the level adjusting device 11 of the lower slide plate 3
The upper slide plate 4 is installed at the bottom. The level adjustment device 11 is composed of four adjustment bolts, and the lower nut 12 of the adjustment bolt moves the upper slide plate 4 up and down to adjust the level of the pile head. A steel column 5 is fixed to the upper slide plate 4, and a bolt 1 for fixing the steel column 5 is provided.
3 is a direction perpendicular to the long hole 10, that is, a long hole 1 in the Y direction.
4 so that the steel column 5 can slide in this direction.

Next, an embodiment of a steel column construction method will be described with reference to FIGS. First, as shown in FIG. 3, PHC piles 6 are cast at predetermined intervals. This P
An end plate 7 is installed on the pile head 2 of the HC pile 6 as shown in FIG. 4, and a bolt 9 is screwed into a head fixing hole 8 of the end plate 7 to install the lower slide plate 3. Since the bolt 9 for fixing the lower slide plate 3 is inserted into the elongated hole 10 oriented in the X direction as shown in FIG. 5, after sliding the lower slide plate 3 in this direction, the bolt 9 Then, the lower slide plate 3 is fixed to the end plate 7.

Next, as shown in FIG. 6, the upper slide plate 4 is installed on the adjustment bolt of the lower slide plate 3, and the upper slide plate 4 is moved up and down by the lower nut 12 to adjust the level of the pile head 2. I do. After the level adjustment is completed, the upper slide plate 4 is fixed with the upper nut 15. At this point, the adjustment of the displacement of the pile core in the X direction and the level adjustment of the pile head 2 have been completed.

Next, as shown in FIG. 7, the steel column 5 of the first section is installed on the upper slide plate 4. Since the bolt 13 for fixing the upper slide plate 4 is inserted into a long hole 14 oriented in a direction orthogonal to the long hole 10, that is, in the Y direction, the steel column 5 is slid in this direction to At 13, the steel column 5 is fixed. Thereby, the displacement of the pile core in the Y direction can be adjusted, so that the displacement of the pile core in the XY directions and the level of the pile head can be adjusted.

Then, in parallel with the installation of the steel column 5, the foundation frame is constructed, and the periphery thereof is backfilled (not shown). As described above, in the present embodiment, since the steps up to the construction of the steel column in the first section can be omitted, the time until the start of the construction can be shortened.

[0013]

According to the present invention, since the steel column is directly installed on the pile head without using the footing foundation, the upper load can be smoothly transmitted to the pile.

The steps up to the start of the construction of the steel column in the first section can be omitted, and the time until the start of the construction can be shortened.

[0015] Since the steel column of the first section can be erected immediately after the pile has been driven, the superstructure can be erected earlier than a normal construction method.

By using the lower slide plate, the level adjusting device and the upper slide plate, it is possible to adjust the deviation of the pile core and the level of the pile head.

[Brief description of the drawings]

FIG. 1A is a plan view of a steel column construction structure, and FIG. 1B is a front view of the same.

FIG. 2 is an exploded perspective view of a steel column construction structure.

FIG. 3 is a plan view of a pile driven into the ground.

FIG. 4 is a plan view of a pile driven into the ground, and FIG. 4B is an upper cutaway sectional view of the pile.

5A is a plan view in which a lower slide plate is provided on an end body, and FIG. 5B is a cross-sectional view of FIG.

FIG. 6A is a plan view in which an upper slide plate is installed on a level adjustment bolt, and FIG. 6B is a sectional view of the same.

FIG. 7A is a plan view showing a steel column installed on an upper slide plate, and FIG. 7B is a sectional view of the same.

FIG. 8 is a sectional view showing a conventional steel column construction method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction structure 2 Pile head 3 Lower slide plate 4 Upper slide plate 5 Steel column 6 Pile 7 End plate 8 Head fixing hole 9, 13 Bolt 10, 14 Long hole 11 Level adjuster 12 Lower nut 15 Upper nut

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiro Miwa 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Inventor Seiichi Suzuki 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Inventor Yasunori Nakamura 1-11-15 Kitako, Nishi-ku, Yokohama-shi, Kanagawa Toda Construction Co., Ltd. Yokohama Branch (72) Inventor Kenji Kimura 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. F term (reference) 2D046 AA14 CA08 2E174 AA01 BA03 DA12 DA38 DA63

Claims (2)

[Claims] 1. A lower slide plate having a level adjusting device is installed on an end plate of a pile head, an upper slide plate is installed on the level adjusting device, and a steel column is installed on the upper slide plate. The construction structure of the steel column. 2. A lower slide plate provided with a level adjusting device is installed on an end plate of a pile head cast on the ground to adjust a displacement of a pile core and a level of a pile head. A method for constructing a steel column, wherein an upper slide plate is installed, and a column is installed on the upper slide plate to adjust a deviation of a pile core.