JP2746321B2 - Push-up construction method of steel structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

[0003] In these construction methods, the construction, finishing, and facility construction of pillars, beams, and the like of all levels are performed on a stand constituting a push-up device.

[0004]

However, when a column, a beam or the like is being built on the pedestal of the push-up device, the push-up device is in a halt state, and the operation rate of the push-up device is reduced. It was not good. In addition, it is not easy to perform the work of building columns, beams, and the like on the gantry because of the work space. Furthermore, a separate facility for finishing and raising and lowering the equipment materials and its work were required.

Accordingly, the present invention has been made to solve the above-mentioned problems of the conventional push-up construction method.

[0006]

According to the present invention, a push-up device is provided on a base for constructing a steel structure, adjacent to a pillar of the structure. At the block construction site adjacent to the push-up site, a block that consists of a stand installed on top and a jack that moves up and down along the stand and is fixed to the stand, At the push-up site, the top floor and the predetermined floor below it are erected at the top of the gantry, then the jack is lowered, and the supporting beams and temporary columns are erected on the jack in the gantry. From the block construction site to the push-up site with a mobile trolley,
Connect the block with the supporting beam in the gantry and the pillar of the tier previously erected on the top of the gantry, then jack up, remove the upper temporary pillar, move the kanuki, and push up for the predetermined tier It has become.

[0007]

At the block construction site, which is separate from the push-up site, assembling, finishing, and equipment work of the blocks are performed, and work is performed without inconvenience such as being restricted by a work space. Further, since the push-up site and the block construction site are different places, the construction of the block and the push-up of the structure can be performed simultaneously. In addition, on the block construction site, finish,
Equipment construction is performed, finishing at the push-up site,
Elevating work such as equipment materials is greatly reduced.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 to 4, A is a push-up site on a foundation G for constructing a steel 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 erected on the base G. In the example shown in FIG. 2, four push-up devices 1 are provided before and after the push-up device 1, that is, a total of eight push-up devices.

As shown in FIGS. 1 and 5, the push-up device 1 is roughly divided into a gantry 2 composed of four columns 4 erected on a base G and a top beam 5 connecting the columns 4, and a gantry 2. And a jack 3 fixed to the gantry 2. The jack may be a hydraulic jack in which the upper girder and the lower girder used in the above-described method are alternately fixed to the gantry and move up and down in the form of a scale. In FIG. 5, reference numeral 6 denotes a rod for guiding the jack 3. In addition, as shown in FIG. 13, a truss 7 is provided on the gantry 2.

At the block construction site B in FIG. 1, the columns 12, the beams 13 are assembled, the floor 15 is laid, the finishing,
The block S for which the construction work has been almost completed is constructed. In the illustrated example, the reference floor shown in FIG. 3 is constructed in three blocks. As shown in FIGS. 1 and 2, the assembled block S is carried into the push-up site A from the block construction site B by the trolley 10 moving on the rail 11, and is pushed up by the procedure described below to perform the steel structure. Build T. In FIG. 1, reference numeral 16 denotes an outer wall.

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

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

The support beam 14 is placed on the jack 3 in the gantry 2,
The temporary pillar 9 is mounted thereon, and the supporting beam 14 is built thereon (FIG. 7).

The block S assembled at the block construction site B is carried into the push-up site A by the carriage 10 moving on the rail 11. As described above, this block S is one in which frame finishing and facility work have been almost completed. The beam 13 of the block S and the support beam 14 in the gantry 2 are also connected to the column 12 of the block S and the story R-
The third column 12 is connected t by rivets, welding, or the like (FIGS. 8 and 9). Assembly completed (FIG. 10).

Jack-up, the upper temporary pillar 9 provided between the beams 13 and 13 of the R-2 layer and the R-3 layer is removed, and the kanuki 8 is moved (FIG. 11). The first push-up is completed (FIG. 12). Similarly, the second push-up is completed (FIG. 13).

[0016]

According to the present invention, assembling, finishing, and equipment work of a block are performed at a block construction site different from a push-up site for constructing a steel structure, and the block is carried into the push-up site. Since the push-up is performed, the steel structure can be efficiently and safely constructed without being restricted by a work space. In addition, since the push-up site and the block construction site are separate places, the construction of the block and the push-up of the structure can be performed simultaneously, and the efficiency and the construction period can be further reduced. Further, since finishing and equipment work are performed at the block construction site, finishing at the push-up site and lifting and lowering work of equipment materials are greatly reduced, and the efficiency is further improved.

[Brief description of the 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 reference floor.

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

FIG. 5 is a front view showing the uppermost floor and three layers erected at the top of the gantry, showing the work process.

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

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

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

FIG. 9 is a sectional view taken along line aa of FIG. 8;

FIG. 10 is a front view showing the completion of assembly.

FIG. 11 is a front view of jack-up, removal of an upper temporary pillar, and movement of kanuki.

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Push-up apparatus 2 ... Stand 3 ... Jack 4 ... Column 5 ... Top beam 6 ... Rod 7 ... Preservation truss 8 ... Kannuki 9 ... Temporary column DESCRIPTION OF SYMBOLS 10 ... dolly 11 ... rail 12 ... pillar 13 ... beam 14 ... supporting beam 15 ... floor 16 ... outer wall

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yukimasa Ogiwara 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Tomofumi Sekiguchi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Mitsuyuki Nishida 1-2-7 Moto Akasaka, Minato-ku, Kyoto Kashima Construction Co., Ltd. (72) Ryo Mizutani 1-2-7 Moto Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) References JP 50-10045 (JP, B1) JP 50-30366 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1 / 35 E04G 21/14

Claims (1)

(57) [Claims] 1. A push-up device is installed on a base for constructing a steel structure adjacent to a pillar of the structure, and the push-up device includes a gantry erected on the base and a gantry along the gantry. At the block construction site adjacent to the push-up site, consisting of a jack that goes up and down and is fixed to the base, constructs a block that has almost completed steel frame assembly, finishing, and equipment work, and at the push-up site,
Erect the top floor and a predetermined level below it on the top of the gantry, then jack down, erection support beams and temporary pillars on the jack in the gantry, and then move the block from the block construction site with a mobile trolley. Carry in the push-up site, connect the block with the supporting beams in the gantry and the pillars of the story erected above the gantry, then jack up, remove the upper temporary pillars, move the kanuki,
A push-up construction method for a steel frame structure, wherein a push-up operation is performed for a predetermined number of layers.