JP2000170411A - Vibration control structure of building with design structure on roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an aesthetic appearance from being impaired by utilizing a structure for design as a mass body of a vibration control structure so as to effectively utilize a roof space and eliminate uncomfortable feeling of appearance when the structure for design is set on a roof. SOLUTION: A canopy 12 is set on a roof 10a of a multistoried building 10, and supported on a roof 10a through laminated rubbers 16 used as leg parts 14. The canopy 12 is used as the mass body, and the canopy 12 and the laminated rubbers 16 form a resonance system for the natural frequency of the multistoried building 10. The leg parts 14 using the laminated rubbers 16 are integrated therewith as a design configuration of the canopy 12 to use as a part of the appearance of the building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building on which a design structure such as a canopy or a louver is installed on a roof, and relates to a vibration damping structure of the building using the design structure as a mass body. .

[0002]

2. Description of the Related Art In recent years, buildings such as middle and high-rise buildings are often provided with a vibration control device for performing vibration control due to an earthquake or wind. Various types of vibration damping devices have been proposed, for example, a device that supports a building itself with an elastic body, a device that has a movable mass on a rooftop, and a device that slides the building itself in a horizontal direction.

[0003]

However, in such a conventional vibration damping structure for a building, particularly when a movable mass body is provided on a roof, the mass body is water accumulated in a water tank. Or blocks, these masses move passively or actively to counteract the vibrations of the building. In this case, the vibration damping device using the above-mentioned mass body is inevitably large in size to absorb the vibration energy of the building, and it is difficult to secure a space for installing the vibration damping device on the roof of the building. In addition, when the above-described vibration damping device is installed, a sense of incongruity is generated on the rooftop of the building, and the appearance is impaired.

Accordingly, the present invention has been made in view of such a conventional problem, and when a design structure is installed on a rooftop, the design structure is used as a mass body of a vibration damping structure. The object of the present invention is to provide a vibration damping structure of a building having a design structure on the roof, which effectively utilizes a rooftop space and prevents the appearance from being discomforted and the aesthetic appearance being impaired. .

[0005]

In order to achieve the object, a vibration damping structure for a building having a design structure on a roof according to claim 1 of the present invention is a design installed on the roof of a building. The structure for design is provided, and the leg of the structure for design is constituted by an elastic body and is supported on the roof, and the structure for design is used as a mass body. A resonance system for the natural period of

Further, the vibration damping structure of a building having a design structure on the roof according to claim 2 of the present invention is provided between the design structure and the building. A damper for generating a damping force against horizontal displacement is provided.

The operation of the present invention will be described below with the above structure. In claim 1, a resonance system for a natural period of a building is provided by a design structure which is a mass body and an elastic body which is a leg supporting the structure. With this configuration, the vibration energy of the building that vibrates due to an external vibration force such as an earthquake or wind can be canceled out by the resonance of the design structure, whereby the building can be damped. Further, since the design structure installed on the roof is used as the mass body, it is not necessary to newly secure an installation space for the mass body, and the roof space can be effectively used. Furthermore, the design structure used as the mass body is originally installed on the roof so as to eliminate uncomfortable feeling, and the elastic body can be incorporated as a design form of the design structure. In addition, the appearance of the building can be prevented from being impaired.

According to the present invention, a damper is provided between the design structure and the building to generate a damping force with respect to a horizontal displacement of the design structure. As the amplitude of the design structure is reduced, the vibration of the design structure is attenuated early by the damper, so that the building can be quickly stabilized.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show one embodiment of a vibration damping structure of a building having a design structure on the roof according to the present invention, FIG. 1 is a front view of the whole, and FIG. 2 is a main part of a portion A in FIG. It is an enlarged front view.

That is, as shown in FIG. 1, the vibration damping structure of a building having a design structure on the roof according to the present embodiment is provided on a roof 10a of a multi-story building 10 as a building and as a design structure. Of the canopy 12 is installed,
The canopy 12 is supported on a rooftop 10a via a laminated rubber 16 as an elastic body serving as a leg portion 14, and the canopy 12 is used as a mass body. A resonance system for the natural period is formed, and the legs 14 using the laminated rubber 16 are incorporated as a design form of the canopy 12 so as to be used as a part of the external appearance.

The canopy 12 is formed as a canopy or an eave which covers the roof 10a.
2 is designed so that the overall appearance of the multi-story building 10 on which it is installed is not impaired. The canopy 12 is separated from the roof 10a and has a predetermined mass for forming the resonance system. And
The above-mentioned laminated rubber 16 is arranged at four corners of the canopy 12,
The canopy 12 is elastically supported by each laminated rubber 16.

The laminated rubber 16 is formed by alternately laminating a rubber plate and a steel plate as is generally known, and functions as the leg portion 14 by supporting the vertical load of the canopy 12 with high rigidity. The spring rigidity is reduced with respect to the shearing deformation in the horizontal direction, and the horizontal displacement of the canopy 12 serving as the mass body is allowed. These canopy 12 and laminated rubber 16 are
The resonance frequency of the multi-story building 10 is tuned by adjusting the mass of the laminated rubber 16 or the spring stiffness of the laminated rubber 16 in the horizontal direction.

Further, the laminated rubber 16 serving as the leg 14
The outer surface of the canopy 12 is colored so as to synchronize with the canopy 12, or is coated with a flexible member colored so as to allow the shear deformation of the laminated rubber 16 so as to have the exterior function of the canopy 12. Has become.

Further, as shown in FIG.
A damper 18 for generating a damping force with respect to the horizontal displacement of the canopy 12 is provided between the roof 2 and the roof 10 a of the multi-story building 10. In particular, in the present embodiment, the damper 1
8 are provided so as to form a pair with each laminated rubber 16, and the laminated rubber 16 and the damper 18 are connected to the leg 1.
4 is constituted. As the damper 18, for example, an oil damper or a viscous material damper can be used.

In the present embodiment having the above structure, the canopy 12 installed on the roof of the multi-story building 10 is used as a mass body, and the canopy 12 and the laminated rubber 14 serving as the legs 14 for supporting the canopy 12 are provided. 16 constitutes a resonance system for the natural period of the multi-story building 10, so that the multi-story building 10 vibrates due to an external force such as an earthquake or wind.
Can be canceled out by the resonance of the canopy 12, and the multi-story building 10 can be effectively damped.

Further, since the canopy 12 installed on the roof 10a is used as the mass body constituting the resonance system in this manner, it is not necessary to newly secure an installation space for the mass body. Can be effectively used. Then, the canopy 12 used as the mass body has a roof 10 a
The canopy 12 does not degrade the external appearance even in the vibration damping structure using the canopy 12. Further, by coating or coating the laminated rubber 16, it is possible to incorporate the canopy 12 into the leg portion 14 as a design form, and the overall appearance of the multi-story building 10 can be improved by the vibration damping structure. it can.

A damper 18 provided between the canopy 12 and the multi-story building 10 is provided with a damper 18 for the canopy 1.
Since the damping force is generated in accordance with the horizontal displacement of 2, the vibration of the canopy 12 is attenuated without amplification as the multi-story building 10 is damped and its amplitude is reduced. Therefore, the multi-story building 10 can be quickly stabilized and its livability can be greatly improved.

By the way, the laminated rubber 16 is used as an elastic body, but the laminated rubber 16 is not limited to a single stage but may be a multi-stage type, so that tuning when the spring rigidity in the horizontal direction is reduced can be more easily performed. Become.

The combination of the elastic body and the damper can be configured as a combination of a linear bearing and a metal spring as shown in FIGS.

That is, the canopy 12 is provided at the four corners of the roof 10 a of the multi-story building 10 via the vibration damping device 30.

Each of the vibration damping devices 30 is orthogonally and integrally formed.
One linear bearing 32 is fixed to the roof 10 a of the multistory building 10, and the other linear bearing 33 is fixed to the canopy 12. The linear bearings 32 of the multi-story building 10 and the linear bearings 33 of the canopy 12 are arranged so as to be directed in the same direction. Therefore, the canopy 12 is provided to be slidable in two directions perpendicular to the multi-story building 10.

On the lower surface of the canopy 12, on the inner side of the roof 10 a with respect to the linear bearings 32 and 33,
An L-shaped vertical wall 34 which is spaced apart in parallel with each of the linear bearings 32 and 33 is provided inwardly and protrudes downward so as to surround the linear bearings 32 and 33. On the roof 10a of the multi-story building 10, fixed walls 36, 38 facing the respective walls of the vertical wall 34 protrude upward from the outside of the vertical wall 34, and are opposed to the vertical wall 34. 34 and a fixed wall 36 and a vertical wall 34
A coil spring 40 and an oil damper 42 are provided between the and the fixed wall 38 with their both ends fixed.

Further, another linear bearing 33 orthogonal to the linear bearing 32 is provided at the end of the multi-story building 10.
When the canopy 12 slides along the linear bearing 32, a stopper 44 is provided to abut and restrict the movement of the canopy 12, and a shock absorber 48 is provided on the abutting surface. On the other hand, the end of the canopy 12 is also opposed to another linear bearing 32 orthogonal to the linear bearing 33 so that the canopy 1
When the slider 2 slides along the linear bearing 33, the stopper 4 abuts and restricts the movement.
6 are provided, and the respective damping devices 30 provided with the shock absorbers 48 are also arranged on the abutting surfaces thereof, and the canopy 12 is mounted thereon on the roof 10 a of the multi-story building 10.

That is, the natural frequency of the canopy 12 is adjusted by the coil spring 40.
Is moved horizontally, the oil damper 42 generates a damping force with the horizontal displacement of the canopy 12. Thereby, the multistory building 10 is damped and its amplitude is reduced. When the canopy 12 moves further horizontally and reaches a certain amount of movement, the stoppers 44 and 46 restrict the movement.

In this embodiment, an example is shown in which the vibration damping devices 30 are provided at the four corners of the multi-story building 10, but the number and arrangement of the vibration damping devices 30 are not limited to this.

Further, in this embodiment, the case in which the canopy 12 is used as the design structure is disclosed. However, any other structure that can be installed on the roof with design properties, such as a louver for blindfold, may be used. Or it can be applied even in advertising towers.

In the above-described embodiment, the canopy 12 constructed on the roof portion has been described as an example of a design structure. However, the present invention is not limited to this. Is also good. Further, a transport device for transporting building materials, a working machine, and the like are mounted, and the steel building or the RC multilayer is gradually lifted up as the building is constructed upward while covering the upper part of the building. The same effect can be obtained even with a temporary work in which the temporary roof frame used for the construction of the floor building is finally left on the building roof, and the temporary roof frame is designed.

Further, the canopy 12 or the temporary roof frame may be used as a hangar for a gondola for cleaning or a frame for a rail for operation. In this case, these can be used without impairing the appearance of the building. Cleaning equipment can be appropriately deployed.

[0029]

As described above, in the vibration damping structure of a building having a design structure on the roof according to claim 1 of the present invention, the design structure installed on the roof is a mass body. The design structure is supported on the roof via an elastic body, and a resonance system for the natural period of the building is configured, so the vibration energy of the building is canceled out by the resonance of the design structure, Thus, the building can be damped. In addition, since the design structure is used as the mass body, it is not necessary to newly secure an installation space for the mass body, and the rooftop space can be effectively used. Further, the design structure used as the mass body is originally installed on the roof so as to eliminate a sense of incongruity, and the elastic body is incorporated as a leg into the design form of the design structure. Therefore, the appearance of the building can be improved in design.

In the vibration damping structure of a building having a design structure on the roof according to claim 2 of the present invention, the design structure is provided between the design structure and the building. A damper that generates a damping force against horizontal displacement of the structure is provided, so the vibration of the above-mentioned design structure is attenuated early by the damper as the building is damped and its amplitude is reduced. This stabilizes the building quickly, and in turn, greatly improves the livability of the building.

[Brief description of the drawings]

FIG. 1 is an overall front view of a building to which a damping structure according to a first embodiment of the present invention is applied.

FIG. 2 is an enlarged front view of a main part of part A in FIG. 1 showing the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a support portion of a vibration damping device according to a second embodiment of the present invention.

FIG. 4 is a plan view showing a support portion of a vibration damping device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Multi-story building (building) 10a Rooftop 12 Canopy (design structure) 14 Legs 16 Laminated rubber (elastic body) 18 Damper 30 Damping device 32, 33 Linear bearing 40 Coil spring 42 Oil damper

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Kobayashi 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Co., Ltd. Obayashi Corporation Tokyo Head Office (72) Inventor Yasunari Hino 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office

Claims (2)

[Claims] 1. A design structure installed on the roof of a building, wherein the leg of the design structure is formed of an elastic body and supported on the roof, and the design structure is used as a mass body. A vibration damping structure for a building having a design structure on a roof, wherein the design structure and the elastic body constitute a resonance system for the natural period of the building. 2. The structure according to claim 1, wherein a damper for generating a damping force with respect to a horizontal displacement of the design structure is provided between the design structure and the building. Vibration control structure of a building with a design structure on the roof.