JPH06200626A - Jacking-up method for building - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To construct the ground frame of a high-rise building without using a tower crane or a large boom concrete pump truck. [Structure] A pillar 3 is inserted into a vertical hole formed in the ground at a predetermined position, and the pillar 3 is supported so that it can be jacked up.
On the pillar 3 protruding from L, the floor on the rooftop floor and the slab 1 on the top floor
After attaching 0, the slab beam 10A, the wall 11, the floor 12, the beam 13, etc., the procedure of jacking up by the height of the first floor and attaching the wall, floor, beam, etc. to the pillar 3 is repeated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack-up construction method for a building, which is sequentially constructed from the first floor to the uppermost floor while jacking up the roof floor constructed earlier.

[0002]

2. Description of the Related Art Generally, as a method of constructing the above-ground portion of the frame of a high-rise building, a method of sequentially constructing from a ground floor (abbreviated as 1F below) to a roof floor (abbreviated as RF hereinafter) and R
The method is roughly divided into a method in which F is applied first and RF is jacked up, and the steps from 1F to the top floor (hereinafter abbreviated as R-1F) are sequentially performed. As a special case of the latter, there is also known a method of assembling RF on the ground in the case of a structure having only RF, jacking up at once and attaching a pillar.

[0003]

However, of the above construction methods, the former requires a hoisting machine called a tower crane to be installed in the RF to hoist materials such as columns, beams, and floors, and the working place is There is a problem that the efficiency decreases and the risk increases as the height rises. In the latter, it is necessary to lift the material such as columns, beams and floors for each floor, and to receive the reaction force of RF jack-up. There is a problem that it is necessary to reinforce each floor. In addition, common to both, it is necessary to connect the columns that have been divided and carried in to each floor sequentially according to the construction, that a large concrete car is required for placing concrete on the floor, and further from the pillar erection to beam erection Since the steps of beam erection, floor panel installation, floor panel installation and floor concrete placement are repeated, there is a problem that the construction speed is controlled by the ability of the RF lifting machine in most cases.

An object of the present invention is to provide a safe jack-up construction method for a building that does not require a lifting machine and a concrete pump truck and does not require work at height.

[0005]

According to the present invention, there is provided a jack-up method for a building in which construction is performed sequentially from the first floor to the top floor while jacking up the roof floor constructed earlier.
A pillar is inserted into a vertical hole formed in the ground at a predetermined position, the pillar is supported so that it can be jacked up, and the floor protruding from the surface of the floor and the slabs, walls, floors, beams on the rooftop floor, etc. After mounting, it is characterized by repeating the procedure of jacking up by the height of the first floor and attaching slabs, walls, floors, beams, etc. to columns.

[0006]

[Explanation of action and effect] In the jack-up method of the building configured as above, the assembly of each floor can be done on the ground, the work at height is eliminated, the concrete pump truck is not required, and the lifting machine is a mobile type on the ground. Cranes are sufficient, and even heavy wall materials allow the cranes to approach the installation site, so the cranes can be small in size, the pillars are jacked up on the ground, and the pillars are lifted directly without the need for floor reinforcement. Also, since the pillars are one continuous pillar, the work can be performed continuously without connecting the pillars for each floor.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

First, the ground surface GL is leveled (FIG. 1), and then concrete for forming the foundation 1 of the jack is placed at predetermined positions, for example, at the four corners of the building (FIG. 2), and then vertically at predetermined positions of the foundation 1 of the jack. The hole 2 is bored and the steel pipe 2A is driven (FIG. 3). The steel pipe 2A is used as a storage bit for the pillar 3, and in this case, has a length that is the sum of the height of the ground surface of the building and the height of the foundation portion. The pillar 3 of the building is formed as one continuous pillar that leads to all floors, and it is almost 1 from the ground surface.
The jack 4 is inserted into the steel pipe 2A so as to project by the height of F, and the jack 4 is installed in the pit 1A formed in the foundation 1 (FIG. 4). In this state, RF is applied to the top 3A of the pillar 3.
Floor 8 and R-1F slab 10, RF-1 wall 11, RF-1
The floor 12 and the RF-1 beam 13 are attached, respectively, and the jack bracket 5 is detachably attached to the outer surface of the column 3 via bolts and nuts (FIG. 5). Next, attach the bottom of the jack bracket 5 to the jack 4
Push up with to raise the body of RF-1. The temporary support bracket 6 is detachably attached to the inner surface of the pillar 3 via the bolts and nuts at the position raised by one floor, and the jack 4 is attached.
Make sure that the skeleton does not descend even if it is contracted (Fig. 6). The jack 4 is reduced so that the weight of the skeleton is supported by the temporary receiving bracket 6, the jack bracket 5 is removed, and the jack bracket 5 is attached to the outer surface of the column 3 on the opposite side of the temporary receiving bracket 6 (FIG. 7). . The jack bracket 5 relocated to the new position is slightly jacked up, the temporary receiving bracket 6 is isolated from the ground surface GL, removed, and then jacked down so that the weight of the body is carried by the jack bracket 5. RF in this state
-2 wall 21, RF-2 floor 22 and RF-2 beam 23 are attached, respectively, and the RF-2 frame construction is completed (Fig. 8). Next, attach the bottom of the jack bracket 5 to the jack 4
Push up to raise the skeleton (Fig. 9) and attach the temporary receiving bracket 6 to the inner surface of the pillar 3 at the position raised by one floor (Fig. 10), and reduce the jack 4 to support the weight of the skeleton by the temporary receiving bracket 6. State, the jack bracket 5 is removed, the jack bracket 5 is attached to the outer surface of the column 3 on the opposite side of the temporary support bracket 6, and the jack bracket 5 relocated to the new position is slightly jacked up to remove the temporary support bracket 6. After separating it from the ground surface GL and removing it, it is jacked down, and the weight of the body is carried by the jack bracket 5. In this state, the RF-3 wall 31 and the RF-3 floor 32
And RF-3 beam 33 are attached respectively to RF-3
The skeleton construction is completed (Fig. 11). In this way, the procedure from FIG. 9 to FIG. 11 is repeated, and as shown in FIG. 12, the 1F wall 91, the 1F floor 92 and the 1F beam 93 if necessary.
Are attached to complete the 1F frame work, and concrete is placed in the steel pipe 2A to fix the pillars 3 as shown in FIG. Finally, as shown in FIG. 14, the jack bracket 5 is removed from the pillar 3, and after the jack 4 is removed, the concrete is filled and the skeleton construction is completed.

According to the drawings provided above, the pillars 3 are built in the four corners of the building. However, if the building becomes large, it may be installed in any other suitable place, and even in that case, it is appropriate. It goes without saying that the jacks 4 correspond to the pillars added at various places.

[0010]

According to the jacking-up method for a building according to the present invention, the tower crane and the large boom type concrete pump truck as in the conventional method are unnecessary, and there is no dangerous work at a high place and it is safe. effective.

[Brief description of drawings]

FIG. 1 is a view showing a leveled state of a planned construction site of a building.

FIG. 2 is a diagram showing a jack foundation.

FIG. 3 is a view showing a state in which a steel pipe is placed in a vertical hole.

FIG. 4 is a state diagram in which a pillar is inserted into a steel pipe and a jack is installed.

FIG. 5 is a diagram illustrating construction work on the top floor.

FIG. 6 is a diagram showing a state where the jack-up is first performed.

FIG. 7 is a state view in which the jack bracket is replaced.

FIG. 8 is a diagram for explaining the construction work on the next floor.

FIG. 9 is a view showing a second jacked-up state.

FIG. 10 is a view for explaining the attachment of the temporary receiving bracket.

FIG. 11 is a diagram for explaining construction work on a further next floor.

FIG. 12 is a diagram illustrating construction work on all floors.

FIG. 13 is a state diagram in which concrete is placed in a steel pipe.

[Figure 14] Construction completion drawing.

[Explanation of symbols]

 1 ... basic of jack 1A ... pit 1F ... ground floor 2 ... vertical hole 2A ... steel pipe 3 ... pillar 4 ... jack 5 ... jack bracket 6 ... tentative Receiving bracket 8 ... RF floor 10 ... R-1F slab 10A ... R-1F beam 11 ... R-1F wall 12 ... R-1F floor 13 ... R-1F beam 21. ..R-2F wall 22 ... R-2F floor 23 ... R-2F beam 31 ... R-3F wall 32 ... R-3F floor 33 ... R-3F beam 91 ... Ground floor wall 92 ... Ground floor 93 ... Ground floor GL ... Ground RF ... Rooftop RF-1 ... Top floor RF-2 ... Below top floor Floor RF-3 ... Floor below the top floor

Claims (1)

[Claims] 1. A jack-up construction method for a building in which construction is performed sequentially from the first floor to the top floor while jacking up the roof floor constructed earlier, by inserting a pillar into a vertical hole formed in the ground at a predetermined position, and Supports pillars so that they can be jacked up, and after attaching the roof floor floor and slabs on the top floor, walls, floors, and beams to the pillars protruding from the ground, jack up only the height of the first floor to form pillars. A jack-up method for buildings, characterized by repeating the steps of attaching slabs, walls, floors, beams, etc.