JPH07292780A - Push-up construction method for steel structure - Google Patents

Abstract

PURPOSE:To make operations achievable efficiently and safely, in a push-up construction method of a steel structure. CONSTITUTION:A block almost completed with the construction of a steelwork column, beams 12 and 13, finishing work and equipment works at a block construction site B adjacent to a push-up job site A. The block is carried into this push-up job site A by a carriage 10, and it is pushed up by a push-up device 1 consisting of a frame 2 and a jack 3, and thus a steel structure T is constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel structure in which a push-up device is installed adjacent to a pillar of the structure on a base for constructing a steel structure and the push-up device pushes up the structure. Concerning the push-up construction method for constructing.

[0002]

2. Description of the Related Art The applicant has already made many proposals regarding such a push-up construction method (for example, Japanese Patent Application No.
No. 211609, Japanese Patent Application No. 5-275144).

In the case of using these construction methods, the construction, finishing, and facility construction of the skeletons of columns, beams, etc. of all layers were carried out on a frame constituting a push-up device.

[0004]

However, when the pillars, beams, etc. are being built on the pedestal of the push-up device, the push-up device is in a rest state, and the operating rate of the push-up device is low. It wasn't good. In addition, it is not easy to perform work for constructing pillars, beams, etc. on the pedestal because of the working space. In addition, a separate facility and work for finishing and raising and lowering equipment materials were required.

Therefore, the present invention has been made for the purpose of solving the above problems of the conventional push-up construction method.

[0006]

Therefore, according to the present invention, a push-up device is installed on a base for constructing a steel frame structure adjacent to a pillar of the structure. At the block construction site adjacent to the push-up site, it consists of a stand that is erected on the top and a jack that moves up and down along the stand and is fixed to the stand. At the construction site, at the push-up site, the top floor and a predetermined floor below it are erected on the top of the gantry, then jacked down, and the supporting beams and temporary columns are erected on the jack inside the gantry, and then the block From the block construction site to the push-up site with a mobile trolley,
The block is connected to the supporting beam in the gantry and the pillar of the floor that was erected above the gantry, then jacked up, the upper temporary pillar is removed, Kannuki is moved, and a predetermined number of floors are pushed up. It is like this.

[0007]

[Operation] At the block construction site, which is a place different from the push-up site, the steel frame is assembled, finished, and the facility is constructed. Further, since the push-up site and the block construction site are different places, it is possible to construct the block and push up the structure at the same time. Furthermore, at the block construction site, finishing,
Equipment work is done, finishing on the push-up site,
Elevating work of equipment materials is greatly reduced.

[0008]

1 to 4, A is a push-up site on a base G for constructing a steel frame structure, and B is a block construction site adjacent to the push-up site A. At the push-up site A, the push-up device 1 is installed adjacent to the pillar 12 of the structure T standing on the base G. In the example shown in FIG. 2, four push-up devices 1 are installed at the front and the back, respectively, for a total of eight push-up devices 1.

As shown in FIGS. 1 and 5, the push-up device 1 is roughly divided into a pedestal 2 including four columns 4 standing on a base G and a top beam 5 connecting the columns 4, and a pedestal 2. And a jack 3 fixed to the base 2. The jack may be a hydraulic jack used in the above-described construction method, in which upper girders and lower girders are alternately fixed to a gantry and moved up and down in the form of a scale. In FIG. 5, 6 is a rod for guiding the jack 3. Further, the gantry 2 is provided with a holding truss 7 as shown in FIG.

At the block construction site B in FIG. 1, assembling the columns 12 and the beams 13, laying the floor 15, finishing,
The block S, on which the facility work is almost completed, is constructed. In the illustrated example, the standard floor shown in FIG. 3 is divided into three blocks for construction. As shown in FIG. 1 and FIG. 2, the assembled block S is carried in from the block construction site B to the push-up site A by the carriage 10 moving on the rail 11, and is pushed up by the procedure described below to make the steel structure. Build a T. In FIG. 1, 16 indicates an outer wall.

The push-up procedure will be described with reference to FIGS.

The uppermost floor R and the lower floors, in the illustrated example, three layers R-1, R-2 and R-3 are erected on the upper part of the gantry 2 (FIG. 5). Reference numeral 8 denotes Kannuki provided between the top beam 5 of the gantry 2 and the beam 13 of the R-3 layer, and 9 denotes the beam 13 of the R-2 layer and the beam 1 of the R-3 layer.
It is a temporary column provided between the three. Lower the jack 3 (Fig. 6).

A supporting beam 14 is mounted on the jack 3 in the frame 2.
Temporary columns 9 are laid on it, and supporting beams 14 are laid on them (FIG. 7).

The block S assembled at the block construction site B is carried into the push-up site A by the trolley 10 moving on the rail 11. As described above, this block S has almost all the skeleton finishing and equipment construction completed. The beam 13 of the block S and the supporting beam 14 in the pedestal 2 are also erected on the pillar 12 of the block S and the pedestal R-
The columns 12 of 3 are connected to each other by rivets, welding, etc. (FIGS. 8 and 9). Assembly completed (Fig. 10).

Jacking up, the upper temporary column 9 provided between the beams 13 of the R-2 layer and the R-3 layer is removed, and the cannuki 8 is moved (FIG. 11). First push-up completed (Fig. 12). Similarly, the second push-up is completed (Fig. 13).

[0016]

INDUSTRIAL APPLICABILITY According to the present invention, steel blocks are assembled, finished, and installed at a block construction site, which is different from the push-up site for constructing a steel frame structure, and the blocks are carried into the push-up site. Since it is pushed up, the steel frame structure can be constructed efficiently and safely without being restricted by the working space. Further, since the push-up site and the block construction site are different places, the block construction and the push-up of the structure can be performed at the same time, which can further improve the efficiency and shorten the construction period. Further, since finishing and equipment work are performed at the block construction site, finishing work at the push-up site and raising and lowering work of equipment materials can be greatly reduced, further improving efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view showing a push-up site and a block construction site in a push-up construction method according to an embodiment of the present invention.

FIG. 2 is a plan view of a work floor.

FIG. 3 is a plan view of a standard floor.

FIG. 4 is a plan view of a bearing portion.

FIG. 5 is a front view showing the uppermost floor and three layers which are erected on the pedestal upper part, showing the work process.

FIG. 6 is a front view of the jack down.

FIG. 7 is a front view in which a supporting beam and a temporary column are built in a gantry.

FIG. 8 is a front view in which a block assembled at another site is carried in by a moving carriage.

9 is a cross-sectional view taken along the line aa of FIG.

FIG. 10 is a front view of the completed assembly.

FIG. 11 is a front view of jacking up, removal of an upper temporary column, and movement of Kannuki.

FIG. 12 is a front view of push-up completion.

FIG. 13 is a front view of the completion of the second push-up.

[Explanation of symbols]

 1 ... Push-up device 2 ... Stand 3 ... Jack 4 ... Column 5 ... Top beam 6 ... Rod 7 ... Preliminary truss 8 ... Kannu 9 ... Temporary column 10 ... Bogie 11 ... Rail 12 ... Pillar 13 ... Beam 14 ... Supporting beam 15 ... Floor 16 ... Outer wall

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukimasa Ogiwara 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Tomofumi Sekiguchi 1-2-2 Moto-Akasaka, Minato-ku, Tokyo No. 7 Kashima Construction Co., Ltd. (72) Inventor Mitsuyuki Nishida 1-2-7 Moto-Akasaka, Minato-ku, Kyoto Kashima Construction Co. Ltd. (72) Inventor Ryo Mizutani 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd.

Claims (1)

[Claims] 1. A push-up device is installed on a base for constructing a steel frame structure adjacent to a pillar of the structure, and the push-up device is installed on the base and along the base. At the block construction site adjacent to the push-up site, which consists of a jack that moves up and down and is fixed to the gantry, construct a block that has almost completed steel frame assembly, finishing, and facility construction, and at the push-up site,
The top floor and a predetermined floor below it are erected on the upper part of the pedestal, then jacked down, the supporting beams and temporary columns are erected on the jack in the pedestal, and then the block is moved from the block construction site by a trolley. Bring it to the push-up site, connect the block to the supporting beam in the gantry and the pillar of the floor erected at the top of the gantry, then jack up, remove the upper temporary pillar, move Kannuki,
A push-up construction method for steel structures, which is characterized by pushing up for a predetermined number of floors.