JP2000073573A - Constructing method for multistoried building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the earthquake resistance and make the work more efficient by surrounding a core column double with inner and outer rigid-frames, forming a floor in a prescribed floor, temporarily setting a roof thereon, making a floor slab for a lower floor on this floor, and successively setting it form the upper part. SOLUTION: A core column 1 having concrete filled steel pipe structure is stood in a position corresponding to the center of a multistoried building, and a core 3 consisting of a five-storied tower rigid-fame (inside rigid-frame) 2 is stood around it. A hut beam 4 having a shade-like cover 4a is temporarily set on the upper end of the core 3, a work scaffold 5 is suspended from the hut beam 4, and a corridor rigid-frame (outside rigid-frame) 6 is constructed in order from the lower part. A super-rigid-frame 9 forming a work floor is formed in a prescribed floor (for example, every 10 floors) in this manner, and a floor slab 10 for the other floor is formed thereon and successively mounted from the lower floor, whereby the work can be progressed without being influenced by the weather. Accordingly, a multistoried building excellent in earthquake resistance can be provided in a short period at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a high-rise building using a composite laminating method.

[0002]

Generally, in a high-rise building having about 50 floors above the ground, firstly, steel columns and steel beams are assembled, and a curtain wall is attached to the obtained framework to form an outer wall. It is constructed by using a precast concrete plate (or reinforced concrete).

[0003] In recent years, importance has been placed on the earthquake resistance of buildings. In particular, in high-rise buildings as described above,
Improving earthquake resistance is of great significance. For this reason, development of a technology capable of constructing a high-rise building having better earthquake resistance than the current situation is awaited. In recent years, there has been an increasing demand for shortening the construction period and reducing the construction cost, and it has become difficult to cope with the above-mentioned conventional construction method. In addition, with the conventional method, the progress of the construction greatly depends on the weather. In other words, construction work cannot be completed on schedule because the construction work cannot be performed on bad weather days.

[0004] Therefore, an object of the present invention is to provide a construction method capable of obtaining a high-rise building excellent in earthquake resistance. Another object of the present invention is to provide a method for constructing a high-rise building that can shorten the construction period and reduce construction costs and can perform construction without being affected by the weather.

[0005]

An object of the present invention is to provide a method for constructing a high-rise building, wherein a core comprising a center pillar and an inner frame surrounding the center pillar is erected at a position corresponding to the center of the high-rise building. Step A, a step B in which a temporary beam is installed on the upper end of the core erected in the step A, and an outer ramen provided around the core is constructed from the temporary beam installed in the step B. C step of suspending the scaffold of the above, and D step of constructing the outer ramen from below by appropriately using the scaffold suspended from the temporary beam in the C step,
In the inner ramen of the core erected in the step A, a portion located on the [M × N (M is a natural number of 2 or more, N is a natural number) +1] floor, and in the outer ramen constructed in the step D, [M × N (M is a natural number of 2 or more, N is a natural number) +1] E that forms a floor between
Step F, a floor slab for [M-1 (M is a natural number of 2 or more)] layers on the ground and on the floor formed in Step E, and the floor slab was manufactured in this Step F. [M-1
(M is a natural number of 2 or more)] The floor slab for the layer is temporarily raised by the height of [M-1 (M is a natural number of 2 or more)] floors, and then gradually lowered, while being located upward. And a G process for attaching to a corresponding floor in order from the building to be constructed.

That is, in the construction method of the present invention, the frame of the high-rise building is constituted by the center pillar, the inner ramen surrounding the center pillar, and the outer ramen surrounding the inner ramen. That is, by combining the double tube composed of the inner and outer ramen with the mandrel, a framework of a high-rise building is formed. Therefore, the skeleton is provided with sufficient proof strength and toughness like a five-storied pagoda, and can flexibly cope with a large shaking of the ground due to an earthquake or the like. In other words, the high-rise building obtained by the construction method of the present invention exhibits much better earthquake resistance than that obtained by the conventional construction method.

Further, in the construction method of the present invention, a floor is first formed on a predetermined floor, floor slabs to be arranged on other floors are manufactured on this floor, and they are once raised and then lowered. It was attached to the specified position in order from the upper one. For this reason, compared with the conventional construction method in which floors are sequentially formed from the bottom, the work can be made much more efficient and rational, and the construction period can be shortened and construction costs can be reduced. Furthermore, since the temporary beam installed at the upper end of the core can be provided with a cap-shaped covering, it is possible to cope with all weather, and the construction can be performed without being affected by the weather.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in more detail with reference to FIGS. FIG. 1 is a longitudinal sectional view showing a state in which a high-rise building is being constructed using the construction method of the present embodiment. FIGS. 2 and 3 are cross-sectional views of a high-rise building constructed by the same construction method. FIG. 4 is an enlarged sectional view showing a state in which the floor slab is being mounted.

The construction method of this embodiment is used for construction of a high-rise building. At the time of implementation,
At a position corresponding to the center of the high-rise building, a core 3 including a center pillar 1 and a five-storied ramen (inner ramen) 2 is erected (Step A). As can be seen from FIG. 2, the five-storied ramen 2 has a square cross section formed by connecting reinforced concrete columns 2a by reinforced concrete beams 2b so as to surround the core column 1 having a concrete-filled steel pipe structure. Here, the self-climbing method was used for erecting the core 3.

When the step A is completed, a hat beam (temporary beam) 4 having a cap-shaped cover 4a is installed on the upper end of the core 3 (step B). And this hat beam 4
Then, the scaffold 5 for constructing the corridor ramen (outer ramen) provided around the core 3 is suspended (step C). The scaffold 5 is connected to an end of a wire fed from a jack (not shown), and can be moved up and down as needed.

After the scaffold 5 is installed as described above, the above-described corridor ramen 6 is successively constructed from below using the scaffold 5 as appropriate (step D). However, here, the step D is started from a stage before the installation of the scaffold 5 is completed. In other words, in this embodiment, in order to shorten the construction period, work that can be performed without using the scaffold 5 is started from a stage before the installation of the scaffold 5 is completed. In addition, as can be seen from FIG. 3 showing a cross section of a portion where the girders 7 and 8 are not provided, the corridor ramen 6 is reinforced concrete columns 6a so as to surround the five-storied pagoda ramen 2 constructed earlier.
Are connected by a reinforced concrete beam 6b and have an octagonal cross section.

When the step D is completed, in the five-storied ramen 2 forming the core 3, the portion located on the [10 × N (N is a natural number) +1] floor and the corridor ramen 6 have the same [10 × N ( N is a natural number) +1], and a floor is formed (step E). More specifically, in the five-story pagoda ramen 2, the 11th floor, 21
As shown in FIG. 2, the portions located on the floors, the 31st floor, etc., and the portions located on the 11th, 21st, 31st floors, etc. in the corridor ramen 6 are connected by girders 7. At the same height, the pillar 1 and the five-storied ramen 2 are connected by the girders 8. And this girder 7,
After placing the floor material on the floor, concrete is cast and the floor on which the floor slabs to be placed on other floors can be manufactured (main floor)
To form Thus, [10 × N (N is a natural number)
On the +1] floor, a super ramen 9 is constructed.

When the super ramen 9 is obtained as described above, nine floor slabs 10 are sequentially manufactured from the lower floor using the super ramen 9 (step F). At the end of the floor slab 10, a receiving metal 10a is provided so as to be able to protrude and retract as shown in FIG. Once the production of the floor slabs 10 is completed, they are once raised up to the height of 9 floors. That is, the entire floor slab 10 is raised so that the uppermost floor slab 10 is located on the [10 × N (N is a natural number)] floor. However, as shown in FIG. 4, this operation is performed using a jack 11 previously installed in each super ramen 9 and a suspension cable 12 drawn out from it.

Thereafter, the floor slabs 10 are attached to the corridor ramen 6 on the corresponding floor in order from the one located above while lowering the floor slab 10 stepwise (step G). However, in practice, this G step is not started after raising the floor slab 10 formed on all the super ramen 9 in order to shorten the construction period similarly to the above D step. The steps are performed sequentially from the section where the process is completed. FIG. 4 shows a state where the uppermost floor slab 10 of a certain section has been attached. By the way, in the state where the installation of the top floor slab 10 is completed, the floor slab 10 is fixed to the corridor ramen 6 by the above-described receiving hardware 10a, and then the reinforcing bar is provided thereon, and the concrete 13 is further poured. Obtained by:

When the fixing of the floor slab 10 is completed in this way, an outer wall is formed using a curtain wall or the like sequentially from the lower floor, and the remaining construction work is performed to complete a high-rise building. As described above, in the present embodiment, the framework of the high-rise building is composed of the pillar 1, the five-storied ramen 2 surrounding the pillar 1, and the corridor ramen 6 surrounding the five-storied ramen 2. That is, the frame of the high-rise building was formed by combining the double tube composed of the five-storied pagoda ramen 2 and the corridor ramen 6 with the mandrel 1. Therefore, like a five-storied pagoda,
Sufficient proof strength and toughness are secured, and even if the ground shakes greatly due to the earthquake, it can flexibly cope with it. Therefore, the high-rise building obtained by the construction method according to the present embodiment exhibits remarkably excellent earthquake resistance.

In this embodiment, a super ramen 9 serving as a working floor is formed every tenth floor, and a floor slab 10 arranged on another floor is manufactured on the super ramen 9. Then, after the manufactured floor slab 10 is once raised, the floor slab 10 is attached to a specified position in order from the upper one while being lowered. For this reason, compared with the case where floors are constructed in order from the bottom, work efficiency is greatly improved, and the construction period can be shortened and the construction cost can be reduced. Further, since the temporary beam 4 installed at the upper end of the core 3 is provided with the cap-shaped cover 4a, it is possible to cope with all weather, and the construction can proceed as scheduled without being affected by the weather.

In this embodiment, the super ramen is constructed for every ten layers (10 floors). However, it goes without saying that the present invention is not limited to this. Actually, the floor on which the super ramen is constructed will be determined based on the performance required for the high-rise building.

[0018]

According to the present invention, a high-rise building excellent in earthquake resistance can be obtained. In addition, the construction period can be shortened and the construction cost can be reduced, and the construction can be performed without being affected by the weather.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a high-rise building is being constructed using the construction method of the present embodiment.

FIG. 2 is a cross-sectional view of a high-rise building constructed by the construction method of the present embodiment.

FIG. 3 is a cross-sectional view of a high-rise building constructed by the construction method of the embodiment.

FIG. 4 is an enlarged sectional view showing a state in which the floor slab is being mounted.

[Explanation of symbols]

 Reference Signs List 1 core pillar 2 five-story pagoda ramen (inside ramen) 3 core 4 hat beam (temporary beam) 5 scaffold 6 corridor ramen (outside ramen) 7,8 giant beam 9 super ramen 10 floor slab 11 jack 12 suspension cable 13 concrete

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshihito Kazama 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Shizuo Mitsunobu 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Taisei Construction Co., Ltd. (72) Inventor Sakai ▲ Tomi ▼ Hisaya 3-1-2 Nishi Shinjuku, Shinjuku-ku, Tokyo Inside VN Engineering Co., Ltd. 441 Minamimachi F term (reference) 2E174 AA01 AA03 BA01 BA03 CA03 CA04 CA12 CA17 DA02 DA12 DA13 DA14 DA17 DA18 DA51 DA65 DA67 EA03

Claims (1)

[Claims] 1. A method for constructing a high-rise building, wherein a core comprising a core and an inner frame surrounding the core is erected at a position corresponding to the center of the high-rise building.
A step, a step B for installing a temporary beam on the upper end of the core erected in the step A, and a scaffold for constructing an outer frame provided around the core from the temporary beam installed in the step B In the C step of suspending, the D step of constructing the outer ramen from below by appropriately using the scaffold suspended from the temporary beam in the C step, and the inner ramen of the core erected in the A step [ [M × N (M is a natural number of 2 or more, N is a natural number)] in the portion located on the M × N (M is a natural number of 2 or more, N is a natural number) +1] floor and the outer frame constructed in the step D +1] E that forms a floor between the floor and the part located on the floor
Step, on the ground, and on the floor formed in step E, [M-
1 (M is a natural number of 2 or more)], and an F step of manufacturing a floor slab for the layer, and the floor slab of [M-1 (M is a natural number of 2 or more)] manufactured in the F step is once [ M-1 (M is a natural number greater than or equal to 2)], and a G step of ascending to the corresponding floor in ascending order from the upper one while gradually lowering the floor. A high-rise building construction method characterized by the following.