JPH094274A - Bending-deflection control type earthquake-damping structure - Google Patents

Abstract

PURPOSE: To change a building into a multistoried one by installing a beam to a required floor of a lower layer, composing a rigid framework of a core and an outer circumferential frame or the column of an outer circumferential wall or constituting the rigid framework only of the outer circumferential frame and forming an upper layer floor only in the core and the outer circumferential frame or the outer circumferential wall. CONSTITUTION: A top girder 3 overhangs the core 1 side on the top section of a core 1 and an outer circumferential frame or the columns 2 of an outer circumferential wall, and the top girder 3 and the outer circumferential frame or the columns 2 of the outer circumferential wall are joined through earthquake damping devices 4. Beams 5 are arranged on required floors in the lower layers of a building, and joined rigidly with the outer circumferential frame or the columns 2 mounted on the outer circumferential wall of the building and a rigid framework 6 is constructed. Accordingly, the building can be changed into a multistoried one without spreading the cross section of the core 1. Or the rigid framework is formed only of the outer circumferential frame 2, and the rigidity of the foot of the building is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a core and a peripheral frame,
Alternatively, the present invention relates to a bending deformation control type vibration control structure that reduces bending deformation of a bending deformation type structure including an outer peripheral wall.

[0002]

2. Description of the Related Art When a building frame is composed of a core consisting of multi-story seismic elements and an outer frame for the purpose of securing a large space, the core shares most of the horizontal force due to the difference in rigidity. To do. Therefore, the deformation of the frame due to seismic force or wind pressure is dominated by the deformation of the core, but the frame with multiple layers of seismic resistant elements tends to be of bending deformation type as the height increases, so the core deformation is reduced. It becomes a design issue for high-rise buildings.

The reduction of bending deformation of the core can be solved by increasing the rigidity of the entire frame including the outer peripheral frame. However, the rigidity of the entire frame is increased and a design in which the core and the outer peripheral frame share an equal horizontal force. Then, the seismic force input to the outer frame becomes excessive, the deformation of the building becomes shear type, and the vibration control device does not work effectively. On the contrary, if both are separated and the core is designed to bear most of the seismic force, the overturning moment and horizontal displacement in the core leg will become excessive and the cross-sectional area will increase. In some cases, the design becomes impossible because of the necessity of raising the cost.

On the other hand, in Japanese Patent Laid-Open No. 7-18918, the core bears the seismic horizontal force acting on a high-rise building.
In addition to the top girder at the top of the core in Japanese Patent Laid-Open No. 7-26786, the structure of a high-rise building in which the outer frame bears only the axial force due to the bending back action of the top girder against seismic force and widely uses the effective space. , The intermediate layer of the core or the outer peripheral frame or the intermediate layer of the outer peripheral wall, the intermediate girder that is cut off to the other side is bulged out, and between the intermediate girder and the outer peripheral frame or the outer peripheral wall, or between the intermediate girder and the core A damping device is also installed between them, damping force is applied to the core in multiple layers, and the increase in deformation is suppressed at the top of the core and the intermediate layer, thereby reducing the response and reducing the amount of bending deformation. Things are also being done.

The present invention was made by paying attention to the difficulty of reducing the attenuation of a bending-deformable structure having a core and an outer peripheral frame, and it is possible to realize a higher layer than the invention disclosed in JP-A-7-18918. At the same time, it is an object of the present invention to provide a simpler structure than the one disclosed in JP-A-7-26786.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] A high-rise structure comprising a core composed of multiple layers of earthquake-resistant elements and an outer peripheral frame or outer peripheral wall, and one side of the core top or the outer peripheral frame or outer peripheral wall to the other side. In addition, the top girder is extended in a separated state, a damping device is installed between the top girder and the outer peripheral frame or outer peripheral wall, or the core to connect both, and a beam is provided on the necessary lower floor. , The core and the outer frame or the column of the outer wall constitutes the frame frame, or the frame frame only by the frame,
The upper floor is intended to be a bending deformation control type vibration control structure characterized by only a core and an outer frame or outer wall.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bending deformation control type vibration control structure of the present invention will be described below with reference to the drawings.

FIG. 2 is an example of a conventional bending deformation control type vibration control structure, in which a top girder 3 is extended from the core 1 side to the top of the core 1 and the column 2 of the outer peripheral frame or outer peripheral wall, and the top girder 3 is formed. It is the figure which joined the column 2 of the above-mentioned peripheral frame or peripheral wall via the damping device 4.

On the other hand, FIG. 1 is a view showing a bending deformation control type damping structure according to the present invention. In the conventional example, it is assumed that the core and the outer peripheral frame or the outer peripheral wall are separated. Therefore, the core bears all the seismic force, and the higher the height of the building, the greater the bending deformation, and it was necessary to increase the cross section of the core part.

According to the present invention, it is possible to increase the height of a building without increasing the cross section of the core so much. In other words, the conventional deformation of the building was determined by the bending deformation of the core.
In particular, in order to control the bending deformation of the foot of the building, it is impossible to suppress the deformation of the entire building unless the bending rigidity is increased at the foot. Therefore, the beams 5 are placed on the required floors of the lower floor of the building, and the pillars 2 are provided on the outer frame or outer wall of the building.
It is rigidly connected with and constructs a ramen frame 6. By doing so, it is possible to increase the height of the building without increasing the cross section of the core.

Conventionally, the core and the outer frame or the column 2 of the outer wall on the lower floor were connected by a beam, but they were once separated on the core side and joined by a seismic control device to reduce the seismic force of the seismic control device. Controlled the bending deformation of the building.

According to the present invention, a beam is rigidly attached to a core and a column of an outer peripheral frame or a column of an outer peripheral wall to form a frame frame without using such a vibration control device, or a frame frame is formed only by the frame. , Is characterized by increasing the rigidity of the foot of the building.

[0013]

The effect of the present invention is that a beam is arranged on the required floor of the lower floor of the building to rigidly contact the outer frame or the column of the outer wall to construct the frame frame, or the frame frame is constructed only by the frame. By doing so, the bending rigidity of the lower floors of the building was increased, and it became possible to increase the height without increasing the cross section of the core.

Therefore, it is possible to increase the height of the building without impairing the planar and sectional functions of the building.

[0015]

[Brief description of drawings]

FIG. 1 is a view showing a bending deformation control type damping structure according to the present invention.

[Fig. 2] Core 1 in an example of a conventional bending deformation control type vibration control structure
FIG. 3 is a view in which a top girder 3 is extended from the core 1 side to the top of the above and a column 2 of the outer peripheral frame or the outer peripheral wall, and the top girder 3 and the column 2 of the outer peripheral frame or the outer peripheral wall are joined via a vibration control device 4.

[Explanation of symbols]

1 ... Core, 2 ... Perimeter frame or column of outer wall,
3 ... Top girder, 4 ... Vibration control device, 5 ... Lower floor beam, 6 ... Ramen frame

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masatoshi Nagata 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.

Claims (1)

[Claims] 1. A core comprising a multi-story seismic element;
A high-rise structure composed of an outer peripheral frame or an outer peripheral wall, and a top girder is projected from one side of the core top part or the outer peripheral frame or the outer peripheral wall to the other side in a separated state. A vibration control device is installed between the wall and the core, both are connected, and a beam is installed on the required lower floor, and either the core and the outer frame or the column of the outer wall constitutes a rigid frame structure, or the outer circumference A bending-deformation-controlled vibration control structure characterized in that the frame consists of a rigid frame structure, and the upper floors consist only of the core and the outer frame or outer wall.