JP2002030826A - Earthquake resistant building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve horizontal rigidity of the whole building, and to restrain horizontal deformation by increasing a burden rate to horizontal force in a top part of multistory earthquake resistant walls. SOLUTION: A series of multistory earthquake resistant walls 2 continuing up to the top part from a lower story part of the building are arranged in a core part of the multistory or superhigh-rise building, and a top part earthquake resistant wall 6 is arranged between the top part of the multistory earthquake resistant walls 2 and a main frame 5 in a top part of the building. The top part earthquake resistant wall 6 is arranged in the shape of sideways extending the top part of the multistory earthquake resistant walls 2. The top part earthquake resistant wall 6 is arranged on the tower top floor for aiming at a high-rise RC multiple dwelling house using a rooftop surface of the tower top floor as a heliport.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-rise or super-high-rise earthquake-resistant building, and more particularly to an earthquake-resistant building having an optimum structure applicable to a high-rise reinforced concrete apartment building.

[0002]

2. Description of the Related Art In recent years, super-high-rise reinforced concrete (RC) apartments having a height of more than 100 m have been realized. ) Has been proposed. This is, for example, as shown in FIG. 3, a high-rigidity RC-made earthquake-resistant wall 1 surrounding the center (core portion) of each floor.
Is provided on each floor, and the earthquake-resistant wall 1 of each floor is a continuous-layer earthquake-resistant wall 2 that is continuous from the low-rise part to the top part of this building. In a building having such a multi-story shear wall 2, a part of the horizontal force at the time of the earthquake is borne by the multi-story shear wall 2, thereby increasing the horizontal rigidity of the whole building and horizontal deformation at the time of the earthquake. And the horizontal strength of the main frame 5 constituted by the columns 3 and the beams 4 can be reduced.

[0003]

However, the multi-story earthquake-resistant wall 2 as described above can bear a sufficient horizontal force in a low-rise part, but the load ratio of the horizontal force decreases in a higher-rise part,
At the top, it bears only a few percent of the horizontal force experienced by the entire building. In other words, the top of the multi-story earthquake-resistant wall 2 does not contribute much to the improvement of the horizontal rigidity or the reduction of the horizontal deformation, and there is room for improvement because the structure is irrational in this respect.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the invention of claim 1 is to provide a series of multi-story earthquake-resistant walls extending from a low-rise section to a top section in a core section of a high-rise or super-high-rise building. At the top of the building, a top shear wall is provided between the top of the multi-story shear wall and the main frame.

According to a second aspect of the present invention, there is provided the earthquake-resistant building according to the first aspect of the present invention, wherein the top earthquake-resistant wall is provided in a form in which a top of the multi-story earthquake-resistant wall is extended laterally.

According to a third aspect of the present invention, there is provided the earthquake-resistant building according to the first or second aspect, wherein the building is a high-rise reinforced concrete apartment house provided with a heliport on a rooftop of a tower. An earthquake-resistant wall is provided on the tower floor.

[0007]

FIG. 1 shows an outline of an earthquake-resistant building according to an embodiment of the present invention, wherein (a) is a plan view of a top portion,
(B) is an elevation view of the top. The building of this embodiment is shown in FIG.
This is based on the building having the conventional structure shown in FIG.

That is, the building according to the present embodiment has a high-rise R
In a C-family housing, each floor is provided with a seismic wall 1 shown in FIG. 3 on each floor. In addition to the above, in addition to the above, in the earthquake-resistant building of the present embodiment, the multi-story
An earthquake-resistant wall (top earthquake-resistant wall) 6 is also provided between the main frame 5 and the pillar 3 constituting the main frame 5.

By providing such a top earthquake-resistant wall 6, in the earthquake-resistant building of the present embodiment, the top of the multi-story earthquake-resistant wall 2 and the main frame 5 are structurally integrated, so that the top earthquake-resistant wall 6 is provided.
The top of the multi-story shear wall 2 exerts a bending-back effect against horizontal deformation during an earthquake, thereby increasing the burden on the top of the multi-story shear wall 2 against horizontal forces, and as a result, The entire wall 2 can greatly contribute to improving the horizontal rigidity and suppressing horizontal deformation of the entire building, and is much more rational and effective than a conventional structure with a simple multi-story shear wall 2 without the top earthquake resistant wall 6.

It is effective to provide the top earthquake-resistant wall 6 on the top of the building, and it is usually preferable to provide it on the top floor. However, it is not possible to provide it on the top floor for reasons such as floor plan. In such a case, if it is near the top, it is not obstructive to provide it on another floor. When a tower floor is provided, it is preferable to provide the top earthquake-resistant wall 6 there. In particular, it is conceivable to plan a heliport for a high-rise apartment building exceeding 100 m. In this case, it is conceivable to provide a top earthquake-resistant wall 6 on the tower floor provided for installing the heliport. The tower floor provided for installing the heliport has no special purpose except that the top surface is used as a heliport, so if the top earthquake-resistant wall 6 is installed on such a tower floor, the tower floor can be effectively used. It is not necessary to secure extra space for installing the top earthquake-resistant wall 6, and there are various restrictions that are inevitable when the top earthquake-resistant wall 6 is installed on the dwelling unit floor. Not so reasonable.

It is natural that the top earthquake-resistant wall 6 should be optimally arranged at an optimum position according to the scale and plan shape of the building. As shown in FIG. 2, for example, as shown in FIG. It is also conceivable that the earthquake-resistant wall 1) provided at the top of the building is extended to the side as it is, and if this is done, the multi-story earthquake-resistant wall 2 and the main frame 5 can be more firmly integrated with each other. It is effective.

Furthermore, the present invention is optimally applied to a super-high-rise RC apartment house. However, the present invention provides the basic structure and use of the entire building as long as the multi-story earthquake-resistant wall 2 and the top earthquake-resistant wall 6 are provided. The scale is not particularly limited.

[0013]

According to the first aspect of the present invention, a series of multi-story earthquake-resistant walls are provided at the core of a high-rise or super-high-rise building from the low-rise part to the top part of the building, and at the top part of the building. Since the top shear wall is provided between the top of the shear wall and the main frame, the burden on the horizontal force at the top of the multi-story shear wall increases, and as a result, the horizontal rigidity of the whole building is improved and horizontal deformation is suppressed. It can make a great contribution and is structurally rational and extremely effective.

According to the second aspect of the present invention, since the top earthquake-resistant wall is provided in a form in which the top of the multilayer earthquake-resistant wall is extended laterally, the multilayer earthquake-resistant wall and the main frame can be more firmly integrated. Can,
More effective.

[0015] The invention of claim 3 is intended for an ultra-high-rise reinforced concrete apartment house having a heliport provided on the top surface of the tower floor, and provided with a top earthquake-resistant wall on the tower floor, so that it can be used other than as a heliport. The tower floor, which is not available, can be effectively used as a space for installing the top shear wall.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of an earthquake-resistant building according to an embodiment of the present invention.

FIG. 2 is a diagram showing an outline of an earthquake-resistant building according to another embodiment of the present invention.

FIG. 3 is a diagram illustrating an example of an earthquake-resistant building having a multi-story earthquake-resistant wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Earthquake-resistant wall 2 Multi-story earthquake-resistant wall 3 Column 4 Beam 5 Main frame 6 Top earthquake-resistant wall

Claims (3)

[Claims] 1. A series of multi-story earthquake-resistant walls continuous from a low-rise section to a top section of a building of a high-rise or super-high-rise building, and a top of the multi-story earthquake-resistant wall is provided at the top of the building. An earthquake-resistant building characterized by having a top earthquake-resistant wall between it and the frame. 2. The earthquake-resistant building according to claim 1, wherein the top earthquake-resistant wall is provided so that a top of the multi-story earthquake-resistant wall is extended laterally. 3. The earthquake-resistant building according to claim 1 or 2, wherein the building is a high-rise reinforced concrete apartment house provided with a heliport on a rooftop of a tower roof, wherein the top earthquake-resistant wall is attached to the tower roof. An earthquake-resistant building characterized by being provided in.