JP2001311321A - Connection vibration-damping device for separated frames - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection vibration-damping device capable of improving seismic safety of a high-rise building by connecting separated frames of the building to perform vibration control when the high-rise building is constituted by at least two separated frames separated in the vertical direction and standing in parallel. SOLUTION: This connection vibration-damping device for separated frames is constituted of a combination of a hat truss with a damper connecting top parts of the separated frames to convert vertical deformation generated between both frames into the deformation of a damper and a connection mechanism connecting adjacent parts of the separated frames to restrain the deformation in the horizontal direction between the frames and allow the deformation in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a case where a high-rise building is composed of at least two frames which are vertically separated and arranged side by side (hereinafter referred to as a "separated frame"). In the technical field of a coupled vibration damping device that performs vibration control by linking the vibration control devices.

[0002]

2. Description of the Related Art Conventional damping dampers exhibit damping performance on the premise that the entire frame of the building undergoes shear deformation, and have a sufficient damping effect against the predominant bending deformation of high-rise buildings. Can not be demonstrated.

[0003] Conventionally, vibration control of a high-rise building that bends and shears has generally been performed by installing a mass damper at the top of the building. This method can control the bending and shearing of a high-rise building at the same time.However, in order to improve the seismic safety of the building, an unrealistically large mass is required. In fact, it has been used to improve the livability.

(1) On the other hand, JP-B-4-49632, JP-A-10-77698, and JP-A-11-20
No. 0661, Japanese Unexamined Patent Application Publication No. 11-77698, and the like disclose a connection damping device in which two or more separated frames are connected by a plurality of dampers installed at equal intervals in the vertical direction.

(2) In Japanese Patent Application Laid-Open No. 5-9979, etc., a damper is provided at one joint end between the tops of two or more separate frames using an atrium or a corridor as a connecting means. A coupling damping device for coupling is disclosed.

[0006]

The above prior art (1)
The connection damping device of (1) utilizes a difference in vibration characteristics between the separated frames to cause the damper to exhibit damping performance, and to obtain a large damping effect. However, as the building becomes higher, the difference in vibration characteristics between the separated frames that make up the building becomes smaller, and the deformation (difference in displacement) between the separated frames during an earthquake also becomes smaller. Resulting in.

The coupled vibration damping device of the prior art (2) is basically similar in concept to the coupled vibration damping device of the prior art (1), but the largest deformation is expected in an isolated frame during an earthquake. The configuration is such that only the tops are connected. However, also in this case, as the building becomes higher, the difference in vibration characteristics between the frames constituting the building becomes smaller, and the deformation (difference in displacement) between the tops of the separated frames during an earthquake becomes smaller. The deterioration of the vibration control performance of the vehicle cannot be avoided.

[0008] Therefore, an object of the present invention is to provide a vibration control system for a high-rise building which is composed of at least two separate frames which are vertically separated and arranged side by side. It is connected to restrict the deformation in the direction and allows the deformation in the vertical direction, and converts the large bending deformation acting on the entire frame during an earthquake into a large vertical deformation between the tops of the separated frame, The vertical deformation between the tops of the separated frame is converted into the deformation of a conventional general damper, so that the damper can exert a large damping performance, and a large vibration damping effect can be obtained as a whole building,
An object of the present invention is to provide a coupled vibration damping device of a separated frame capable of improving the seismic safety of a building.

[0009]

As a means for solving the above-mentioned problems, a connecting vibration damping device for a separation frame according to the first aspect of the present invention is vertically separated and arranged in at least two buildings. A damper-equipped hat truss comprising a damper for converting a vertical deformation generated between both frames by connecting tops of the separated frame to a damper and damping the damper; It is characterized in that it is constituted by a combination with a connecting mechanism that connects parts to restrain horizontal deformation between the frames and allows vertical deformation.

According to a second aspect of the present invention, in the vibration damping device for a separated frame according to the first aspect, the hat truss with the damper is installed by connecting the tops of the separated frame by hinge connection. A damper mechanism that attenuates by utilizing axial deformation is incorporated between the frame and each frame by hinge-joining both ends thereof.

According to a third aspect of the present invention, in the coupled vibration damping device for a separated frame according to the first aspect, the hat truss with a damper is installed by connecting the tops of the separated frame by a rotation damping mechanism. And a damper mechanism that attenuates by utilizing axial deformation and bending deformation.

According to a fourth aspect of the present invention, in the coupled vibration damping device for a separated frame according to the first aspect, the hat truss with a damper is a parallel link mechanism that converts vertical deformation generated between the separated frames into parallel motion. A damper mechanism is installed between the upper and lower horizontal links of the parallel link mechanism and attenuated by utilizing the parallel motion.

According to a fifth aspect of the present invention, there is provided the coupled vibration damping device for a separated frame according to any one of the first to fourth aspects,
The connecting mechanism is characterized in that constituent members of adjacent portions of the separation frame are connected to each other with pins by connecting members.

According to a sixth aspect of the present invention, there is provided the coupled vibration damping device for a separated frame according to any one of the first to fourth aspects,
The connecting mechanism includes an H-shaped connecting member vertically embedded in the frame of an adjacent portion of the separation frame so as to straddle each flange portion, and has a viscoelasticity at a contact surface between the same frame and the H-shaped connecting member and a movable range. It is characterized in that the body is interposed.

According to a seventh aspect of the present invention, in the coupled vibration damping device for a separation frame according to any one of the first to fourth aspects,
The coupling mechanism is characterized in that the vertical members at adjacent portions of the separation frame are surrounded by a common tubular member, and the two vertical members and the tubular member are slidably contacted via a sliding material. I do.

[0016]

Embodiments and Examples of the Invention According to the invention, the connection damping device for a separation frame according to the first to seventh aspects of the present invention comprises a high-rise building having at least two separation frames which are vertically separated and arranged side by side. In addition, the present invention is suitably implemented as a coupled vibration damping device that performs vibration damping control by connecting the separated frames.

More specifically, as shown in FIGS. 1 to 8, embodiments of the coupled vibration damping device of the present invention are shown. The hat truss 3 with a damper which converts the generated vertical deformation into a deformation of the conventional general damper mechanism 5 or 9 or 14 and attenuates it.
And the adjacent portions of the separated frames 1 and 2 are connected to each other,
It is configured in combination with a coupling mechanism 4 that restricts horizontal deformation between the two and allows vertical deformation.

The principle of the connecting vibration damping device of the present invention is that the connecting mechanism 4 restrains the horizontal deformation between the separation frames 1 and 2 and allows the vertical deformation, so that the two frames 1, 1 2 or 5, the bending deformation acting on the entire frame is converted into a large vertical deformation as shown in FIG. Further, since the damper mechanism 5 or 9 or 14 is functionally incorporated into the hat truss 3 in accordance with the respective deformation operation types, the damper mechanism 5 or 9 or 14 exhibits a large damping performance. As a result, a large damping effect can be obtained for the entire building, and the earthquake-resistant safety of the building can be improved.

First, the above-described 2 of the coupled vibration damping device of the present invention is described.
The details of the hat truss 3 with a damper among the components will be described. The hat truss 3 with a damper illustrated in FIG. 1 has a pin 6 between the tops of the separation frames 1 and 2.
6 and connected. Further, between the hat truss 3 and each of the frames 1 and 2, the vertical deformation generated between the frames 1 and 2 is converted into axial deformation via the mounting member 3a, and is attenuated using the axial deformation. Oil damper,
A damper mechanism 5 including a cylinder such as a Bingham damper and a piston is incorporated by joining both ends of the damper mechanism with pins 7 and 7 (invention 2).

Therefore, when vertical deformation due to bending shear deformation occurs at the tops of the separation frames 1 and 2 due to the horizontal force at the time of the earthquake, as shown in FIG. 2, the hat truss 3 is provided between the frames 1 and 2. The converted damper mechanism 5 causes the converted axial deformation. Therefore, the damper mechanism 5 is operated by the axial deformation to exhibit the damping performance.

The hat truss 3 with a damper illustrated in FIG. 3 is installed by connecting the tops of the separation frames 1 and 2 by a rotation damping mechanism 8 using extremely low yield point steel, lead or the like.
Further, the vertical deformation generated between the frames 1 and 2 between the frames 1 and 2 via the mounting members 3a and 3a 'is converted into axial deformation and bending deformation, and is attenuated by using the axial deformation and bending deformation. A damper mechanism 9 using ultra-low yield point steel, lead or the like is incorporated (the invention according to claim 3).

Therefore, when vertical deformation due to bending-shear deformation occurs on the tops of the separation frames 1 and 2 due to the horizontal force at the time of the earthquake, as in the embodiment of FIG. 1, as shown in FIG. The space is deformed and the hat truss 3 and each frame 1, 2
The converted axial deformation and bending deformation occur in the damper mechanism 9 provided therebetween. Therefore, the damper mechanism 9 operates by the axial deformation and the bending deformation, and the damping performance is exhibited. The hat truss 3 in the same embodiment is joined by rotation damping mechanisms 8, 8 corresponding to the joining by the pins 6, 6 in the embodiment of FIG. The up-down deformation is converted into rotational deformation to exhibit a certain damping performance.

The hat truss 3 with a damper illustrated in FIG. 4 is installed as a parallel link mechanism for converting vertical deformation generated between the separation frames 1 and 2 into parallel motion. That is, the extension members 10 and 10 of the frames 1 and 2 and the upper and lower horizontal links 11 and 12 of the parallel link mechanism are connected by the pins 13 to form a parallelogram. In the case of the illustrated example, a viscous body wall damper 14 is incorporated between the horizontal links 11 and 12 performing the vertical parallel movement as a damper mechanism that attenuates using the relative parallel movement between the two.
The outer wall type container 14a of the viscous body wall damper 14 is fixed to the lower horizontal link 12, and the inner resistance plate 14b
Is fixed to the upper horizontal link 11 (the invention according to claim 4).

Therefore, when vertical deformation due to bending shear deformation occurs on the tops of the separation frames 1 and 2 due to the horizontal force at the time of the earthquake, as shown in FIG. A converted horizontal deformation occurs between the horizontal links 11,12. Therefore, the viscous body wall damper 14 is actuated by relative horizontal deformation between the upper and lower horizontal links 11 and 12, thereby exhibiting damping performance.

Next, the details of the connecting mechanism 4 which is another component of the connecting vibration damping device of the present invention will be described.

The coupling mechanism 4 illustrated in FIGS. 6A and 6B has columns (vertical members) 1A and 2A adjacent to the separation frames 1 and 2,
The end of the connecting member 16 is connected by pins 17 and 17 via the attaching members 15 and 15 (the invention according to claim 5).

Therefore, when bending shearing occurs between the separation frames 1 and 2 due to the horizontal force at the time of the earthquake, the mounting member 1
Horizontal deformation between the frames 1 and 2 is restricted by the pins 17 and 17 between the connection members 5 and 15 and deformation in the vertical direction is allowed by rotation (bending).

The connecting mechanism 4 illustrated in FIGS. 7A and 7B has an H-shaped steel (H-shaped connecting member) 18 in columns (frames) 1A and 2A adjacent to the separated frames 1 and 2, respectively. 1
8A, and are built in the vertical direction with the same columns 1A, 2A
Viscoelastic body 1 is provided on the contact surface between
9 is interposed (the invention according to claim 6).

Therefore, when bending and shearing deformation occurs between the separated frames 1 and 2 due to the horizontal force at the time of the earthquake, each flange portion of the H-section steel 18 is locked inside the columns 1A and 2A, and the frames 1 and 2 are locked.
The deformation in the horizontal direction between them is restrained, and the deformation in the vertical direction is allowed while receiving a viscous resistance by the viscoelastic body 19 inside the columns 1A and 2A, while exhibiting a certain damping performance.

In the connection mechanism 4 illustrated in FIGS. 8A and 8B, columns (vertical members) 1A and 2A adjacent to the separation frames 1 and 2 are surrounded by a common steel pipe (tubular member) 20.
In the embodiment, the two columns 1A and 2A and the steel pipe 20 are:
The sliding member 21 such as PTFE resin and the mating member 22 such as a stainless steel plate are slidably in contact with each other (the invention according to claim 7).

Therefore, when bending and shearing deformation occurs between the separated frames 1 and 2 due to the horizontal force at the time of the earthquake, both columns 1A and 2A are pressed down by the steel pipe 20, and the horizontal deformation between the frames 1 and 2 is restrained. The sliding material 21 and the partner material 2
The deformation in the up and down direction is allowed by the function of 2.

Finally, FIGS. 9A to 9C show the results of the seismic response analysis of the separated frame (maximum response acceleration, maximum shear force, and maximum overturning moment at each floor of the building during an earthquake).
(A) shows the case without the coupling damping device, and (b), (c),
(D) shows a case where the coupled vibration damping device of the present invention is provided. However, the damping performance of the damper incorporated in the order of (b), (c) and (d) is increased. As is clear from these graphs, compared to the conventional response characteristics (a),
It is understood that the response characteristics (b), (c) and (d) of the present invention can reduce the seismic response by 20 to 30%.

[0033]

According to the coupled vibration damping device for a separated frame according to the present invention, a high-rise building is composed of at least two separated frames which are vertically separated and arranged side by side. In addition, the vibration control of this separated frame is controlled by a connecting mechanism that connects adjacent parts between the two frames so that horizontal deformation is restricted and vertical deformation is allowed, and large bending acting on the entire frame during an earthquake The deformation is converted into a large vertical deformation between the tops of the separation frame, and the vertical deformation between the tops of the separation frame is converted into a conventional general damper deformation by a hat truss with a damper,
Since the large damping performance can be exhibited by the damper, a large vibration damping effect can be obtained as a whole building, and the seismic safety of the building can be improved.

[Brief description of the drawings]

FIG. 1 is an elevational view showing a first embodiment of a hat truss with a damper in a separation frame provided with a connection vibration damping device of the present invention.

FIG. 2 is a diagram showing a deformation state of the separation frame of FIG. 1 at the time of an earthquake.

FIG. 3 is an elevational view showing a second embodiment of a hat truss with a damper in a separation frame provided with the coupled vibration damping device of the present invention.

FIG. 4 is an elevational view showing a third embodiment of a hat truss with a damper in a separation frame provided with the coupled vibration damping device of the present invention.

FIG. 5 is a diagram showing a deformed state of the separation frame of FIG. 4 during an earthquake.

FIG. 6A is a front view showing a separation frame provided with the connection vibration damping device of the present invention, particularly showing a first embodiment of a connection mechanism;
B is a view of A taken along line aa.

FIG. 7A is a front view showing a separation frame provided with the connection vibration damping device of the present invention, particularly showing a second embodiment of the connection mechanism;
B is a view of A taken along line bb.

FIG. 8A is a front view showing a separation frame provided with a connection vibration damping device of the present invention, particularly showing a third embodiment of a connection mechanism;
B is a view of A taken along the line cc.

FIGS. 9A to 9C are characteristic diagrams showing results of seismic response analysis of a separated frame provided with the coupled vibration damping device of the present invention and a separated frame not provided with the coupled damping device.

[Explanation of symbols]

 1, 2 Frame 3 Hat truss 4 Connection mechanism 5, 9, 14 Damper 6, 7 pin 3a, 3a 'Mounting member 8 Rotation damping mechanism 10 Extension member 11, 12 Horizontal link 13 Pin 15 Mounting member 16 Connection member 17 Pin 1A, 2A Column (vertical member) 18 H-shaped steel (H-shaped connecting member) 18a Flange part 19 Viscoelastic body 20 Steel pipe (tubular member) 21 Sliding material 22 Mating material

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nagahito Kibayashi 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Branch (72) Inventor Chisako Matsuo 8-21 Ginza, Chuo-ku, Tokyo No. 1 Inside Takenaka Corporation Tokyo Head Office (72) Inventor Tadao Ueda Inside Takenaka Corporation Tokyo Head Office 8-21-1, Ginza, Chuo-ku, Tokyo

Claims (7)

[Claims] 1. A vibration damping device for a separation frame which is vertically separated and arranged in at least two buildings, wherein a vertical deformation which occurs between the two frames by connecting the tops of the separation frame to each other is provided. It is composed of a combination of a hat truss with a damper that converts to deformation and attenuates, and a connection mechanism that connects adjacent parts of the separated frame to restrict horizontal deformation between the frames and allows vertical deformation between the frames. A coupled vibration damping device having a separated frame. 2. A hat truss with a damper is installed by connecting the tops of a separated frame by hinge joining, and a damper mechanism that attenuates by utilizing axial deformation between the hat truss and each frame is provided. The coupled vibration damping device for a separation frame according to claim 1, wherein both ends are hinged and incorporated. 3. A hat truss with a damper, which is installed by connecting the tops of a separated frame by a rotation damping mechanism, and damping between the hat truss and each frame by utilizing axial deformation and bending deformation. The coupled vibration damping device for a separation frame according to claim 1, wherein a mechanism is incorporated. 4. A hat truss with a damper is installed as a parallel link mechanism for converting vertical deformation generated between separated frames into parallel motion, and utilizes the parallel motion between upper and lower horizontal links of the parallel link mechanism. The coupled damping device for a separation frame according to claim 1, wherein a damper mechanism that attenuates the damper is incorporated. 5. The separation frame according to claim 1, wherein the connecting members are connected to each other by pins. Connected vibration suppression device. 6. A connecting mechanism, wherein an H-shaped connecting member is vertically embedded in a frame of an adjacent portion of the separation frame so as to straddle each flange portion thereof, and a contact surface between the frame and the H-shaped connecting member is provided. The coupled vibration damping device for a separation frame according to any one of claims 1 to 4, wherein a viscoelastic body is interposed in a movable range. 7. The connecting mechanism has a structure in which vertical members at adjacent portions of a separation frame are surrounded by a common tubular member, and the vertical members and the tubular member are slidably contacted via a sliding material. The coupled vibration damping device of a separation frame according to any one of claims 1 to 4, wherein