JPH11303446A - Seismic structure - Google Patents

Abstract

(57) [Problem] To provide an earthquake-resistant structure that can be designed and constructed reasonably and economically without large shaking even when a large horizontal force exceeding a prediction is applied. The task is to A vertical member (1) is a member having higher rigidity than columns (2) and (3) disposed outside the member (1), and the vertical member (1) is set at a substantially central position on a plane of a structure. This is an earthquake-resistant structure that is rigidly connected to the top of the outer peripheral column 3 using the connecting beam 4 and is not connected to the skeleton on the lower floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-rise to high-rise earthquake-resistant structure.

[0002]

2. Description of the Related Art Generally, conventional earthquake-resistant structures generally have a pure frame structure, a frame structure with braces, and a frame structure with earthquake-resistant walls.

[0003]

However, when a large horizontal force, for example, a severe earthquake, is applied to the structure, which is more than expected,
There is a risk of large shaking and damage. In order to avoid this, over-design may occur, resulting in increased construction costs.

[0004]

SUMMARY OF THE INVENTION An object of the present invention, which has been made to solve the above-mentioned problems, is to provide a reasonable and economical design and construction which does not cause a large shaking even when a large horizontal force exceeding expected force is applied. It is an object of the present invention to provide an earthquake-resistant structure that can be used.

[0005]

In order to achieve the above-mentioned object, the present invention provides a vertical member having a higher rigidity than a column provided outside the member. This is an earthquake-resistant structure that is set at approximately the center of the plane, and is rigidly connected using a connecting beam between the vertical member and the top of the outer peripheral column of the member, and is not connected to the skeleton on the lower floor.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. <A> Seismic structure [Part 1] (Figs. 1 to 3) The seismic structure is a frame consisting of columns 2, 3 and beams 5, and one high-rigidity vertical set at the center of the structure when viewed in plan. Member 1
And a connecting beam 4 connecting the top of the member 1 and the outer peripheral column 3 thereof. A gap 8 is provided between the vertical member 1 and the floor slab 6 on the lower floor. This structure is suitable for low-rise or middle-rise buildings, and the vertical member 1 can bear most of it when an external force is applied. Therefore, the structure is less swayed than the conventional structure, and as a result, bending and shear deformation is reduced. Can be smaller.

<B> Seismic Structure [Part 2] In this seismic structure, the vertical member 1 and the outer peripheral column 3 are connected by a connecting beam for each of a plurality of floors in <A> [Part 1]. This is the case of rigid connection. (Not shown) This structure is suitable for a high-rise building or a building having a large aspect ratio. When an external force acts, the vertical member 1 and the connecting beam 4 at the top are used.
In addition, since the bending deformation generated in the structure is eliminated by the connecting beams for each of a plurality of floors, the shaking is significantly reduced as compared with the conventional one of the same scale, and as a result, the bending deformation can be reduced.

The vertical member 1 is a core column in the figure, and is a member having a larger cross section than the columns 2 and 3 on the outside and having higher rigidity. Further, the member 1 is not limited to the core pillar, and may be a highly rigid wall-type member.

A vertical beam 1 is rigidly connected with a beam 4 between the tops of the vertical member 1 and the nearest column 3. In addition, the vertical member 1 and the nearest column 3 are rigidly connected to each other on the general floor by a beam at every plural floors. (Not shown) Reference numeral 7 in the figure is a roof slab.

The vertical member 1 is not joined to the skeleton on each floor other than the floor where the connecting beam 4 is provided. That is, a gap 8 is provided between the floor slab 6 and the vertical member 1 on each floor where the connecting beam 4 is not provided, and the floor is cut off. The gap 8 may be left open as shown in the figure, or the gap 8 may be closed by a cushion material that does not transmit horizontal force.

The vertical member 1 is located at the center of the plane in FIG.
Although the book is set, if the plane area of the structure is large, a plurality of books can be set at appropriate intervals.

[0012]

Since the present invention has been described above,
The following effects can be obtained. <B> A vertical member having high rigidity is set at approximately the center position of the plane of the structure, and the member and the outer peripheral column are rigidly connected to each other at the top or every plural floors by connecting beams, and no connecting beams are provided. Since the floor is not joined to the frame, the bending and shear deformation caused by the external force acting on the structure is eliminated, so that the shaking can be significantly reduced as compared with the conventional one of the same scale. <B> As a result, the external beam and column member of the structure can be reduced in construction cost because the cross section of the member can be reduced, and the internal space is accordingly widened, which is advantageous in terms of application of the structure.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of an earthquake-resistant structure according to the present invention.

FIG. 2 is a plan view of a rooftop floor looking up.

FIG. 3 is a plan view of a general floor looking up.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Etsuo Suzuki 441 Imai Minamicho, Nakahara-ku, Kawasaki-shi, Kanagawa

Claims (2)

[Claims] The vertical member is a member having higher rigidity than a column disposed outside the member. The vertical member is set at a substantially center position of a plane of a structure, and the vertical member and the member An earthquake-resistant structure, characterized by being rigidly connected to the top of the outer pillar using a connecting beam and not being connected to the frame on the lower floor. 2. The vertical member is a member having higher rigidity than a column disposed outside the member. The vertical member is set at a substantially center position of a plane of a structure, and the vertical member and the member Rigidly connected to the top of the outer peripheral column using a connecting beam, and rigidly connected to the vertical member and the outer peripheral column of the same member using a connecting beam for each of multiple floors, and to a floor where no connecting beam is provided. A seismic resistant structure characterized by not being joined to a skeleton.