JPH07158318A - Vibration damper for structure - Google Patents

Abstract

PURPOSE:To damp the vibrations of a structure by wind pressure effectively, and to simplify the supply piping of air particularly to an air curtain for damping vibrations by combining and using a vibration-damping blade and the air curtain for damping vibrations. CONSTITUTION:Air blow-off sections for forming an air curtain are formed to a plurality of vibration-damping blades mounted to the upper section of a structure 30, and the effective length of the vibration-damping blade is set in size obtained by adding the length of vibration-damping blade itself and the length of the air curtain for damping vibrations. A structure that indoor air is utilized within a range of tolerance as air for forming the air curtain is adopted. When the quantity of air required for shaping the air curtain only in the quantity of air taken in from the inside of the structure is insufficient, fresh air for air-conditioning fed from the outside of the structure through a fresh-air feed passage 220 is distributed to an air supply duct 230 for the curtain.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure vibration damping device, and more particularly to a vibration damping device for damping the vibration of a structure caused by wind pressure acting on a high-rise or super-high-rise structure. Is.

[0002]

2. Description of the Related Art Nowadays, with the increase in the height of structures, the vibration phenomenon of the structures caused by strong wind or the like has become a problem. In particular, in various super high-rise towers and super high-rise buildings, the entire structure is often formed in a flexible structure. Therefore, it is easily influenced by the wind pressure. For example, when the wind direction directly faces the structure, a periodic Karman vortex 20 is generated on the back surface of the structure 10 as shown in FIG. A phenomenon occurs in which the object 10 vibrates in the direction perpendicular to the wind.

Therefore, if the generation of this Karman vortex can be suppressed, the vibration of the structure 10 can be greatly reduced, and a high-rise structure and an ultra-high-rise structure having good habitability can be obtained.

Therefore, there has been conventionally proposed a damping device using damping blades (Japanese Patent Laid-Open No. 12047).
No. 6, JP-A-4-297675).

For example, in the prior art disclosed in Japanese Laid-Open Patent Publication No. 2-120476, the blades 2 are arranged at the corners of the outer wall of the upper floor of the structure 1 as shown in FIG. The angle of attack of each blade 2 with respect to the wind is controlled so as to reduce the vibration of the structure 1.

[0006]

However, in the conventional device, the blade 2 provided on the outer wall of the structure 1 cannot be provided with an excessively large blade due to restrictions such as installation space. This was the cause of not being able to exert a sufficient damping effect.

The present invention has been made in view of such conventional problems, and an object thereof is to effectively use a vibration damping blade and a vibration damping air curtain in combination to cause vibration of a structure due to wind pressure. The structure that can be simply suppressed, and in particular, the pipe for supplying air to the damping air curtain is also used as a part of the pipe for air conditioning, thereby simplifying the pipe structure. To obtain a vibration control device.

[0008]

In order to achieve the above object. According to a first aspect of the present invention, in a vibration damping device that damps vibration of a structure due to wind pressure, a plurality of vibration damping blades arranged in a vertical direction above the structure and the vibration damping blade are provided on the vibration damping blade. And an air supply part for creating an air curtain for damping, an air supply part for supplying air for creating an air curtain to the air discharge part, and an air supply part for supplying conditioned air to the structure, Supply unit control means for controlling the supply unit,
The air supply unit includes a fresh air supply path that takes in fresh air from the outside of the structure into the structure, and an air supply for the curtain that supplies the air necessary for forming the air curtain toward the air blowing unit. A duct and an air-conditioning duct that supplies air necessary for air conditioning to the interior of the structure, and air is taken from the fresh air supply path and the structure and supplied to the curtain air supply duct and the air-conditioning duct. A mixing air conditioning unit, wherein the supply unit control means supplies air to the air conditioning duct after air is taken in from the fresh air supply passage and the inside of the structure, and is necessary for forming the air curtain. When the amount of air is less than the allowable intake air amount allowed to be taken in from the structure, the air is taken from the structure and supplied to the curtain air supply duct, When the amount of air required to form the curtain is greater than the allowable intake air amount, the mixed air conditioning unit is controlled so that air is taken from the structure and the fresh air supply passage and supplied to the curtain air supply duct. It is characterized by that.

Further, the invention according to claim 2 is based on claim 1, wherein in the mixed air conditioning unit, when the amount of air required for forming the air curtain is larger than the allowable intake air amount,
It is characterized by including a distribution unit for distributing the shortage of air from the fresh air supply passage to the curtain air supply duct.

Further, the invention according to claim 3 is the invention according to any one of claims 1 and 2, wherein the supply part control means determines an air amount required for forming the air curtain and the intake allowable air amount. When the amount of air required for forming the air curtain is larger than the intake allowable air amount, the comparison air conditioner of the mixing air conditioner unit distributes the insufficient air from the fresh air supply passage to the curtain air supply duct. It is characterized in that the distribution unit is controlled.

The invention described in claim 4 is the same as claim 1.
In any one of 3 to 3, the supply duct is connected to a supply duct for supplying air taken in from a lower floor without a damping blade.

[0012]

In the present invention, the plurality of damping blades provided above the structure are provided with the air blowing portion for making the air curtain. As a result, even if the damping blade itself is small, the effective length of the damping blade will be the sum of the length of the damping blade and the length of the damping air curtain, and a large damping blade It is possible to obtain the same vibration damping effect as when it is provided.

Particularly, the vibration damping device of the present invention adopts a structure in which the air in the room is taken in and utilized within the range of the allowable air amount as the air for forming the air curtain. Then, when the amount of air necessary for forming the air curtain is insufficient only by the amount of air taken in from the inside of the structure, fresh air for air conditioning supplied from outside the structure through the fresh air supply passage,
It is distributed to the supply duct.

With such a structure, it is possible to create an air curtain while effectively preventing a sudden pressure reduction in the room.

Furthermore, since the fresh air supply path used for air conditioning is also used for forming the air curtain, the piping structure in the structure can be simplified accordingly.

Further, the maximum flow passage capacity of the fresh air supply passage can be reduced as compared with the case where all the air required for forming the air curtain is taken in from outside the structure, and the cost of the entire system can be reduced accordingly. You can

Further, in the vibration damping device of the third aspect, when the air curtain is formed on the vibration damping blade, the comparison unit compares the allowable intake air amount from the room with the air amount required for forming the air curtain. However, when the amount of air required for forming the air curtain is larger than the allowable intake air amount, the shortage is supplied from the fresh air supply passage to the supply duct.

By doing so, fresh air can be automatically supplied to the supply duct.

Further, in the vibration damping device of the fourth aspect, the air taken in from the room on the lower floor where the damping blades are not provided is supplied to the upper floor where the air curtain is formed, thereby producing the air curtain. I am trying to replenish the air for it.

Thus, the room air on the lower floor, which is originally discarded as exhaust gas, can be used as the air for making the air curtain. For this reason, the allowable amount of air that can be taken in from the room can be correspondingly increased.
Therefore, the maximum flow capacity of the fresh air supply path can be reduced accordingly, and the cost of the entire system can be reduced. In particular, since such exhaust air is usually generated through an exhaust duct installed from each floor toward an exhaust port provided on a rooftop or the like, a part or all of the exhaust duct can be utilized as a supply duct.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows an example of a super high-rise structure to which the present invention is applied. Example Super High-Rise Structure 30
Is formed in a substantially square pole shape, and on the roof 32, a wind sensor (wind direction and anemometer) 5 for detecting the wind speed and the wind direction.
0 and a vibration sensor (seismometer) 52 that detects vibration of the structure 30 in two horizontal directions (x and y directions) are provided.

Further, the super high-rise structure 30 is provided with a damping blade 40 at each corner portion 36 on its side surface. Each of the damping blades 40 is formed so as to be able to advance and retreat from the inside of the structure 30 to the outside by driving an actuator 48 described later. Further, as shown in FIG.
0 is formed so as to be rotatable in the horizontal direction about the support shaft 42 in a state of protruding to the outside of the structure 30. Therefore, the blade direction of the damping blade 40 can be set to an arbitrary direction by controlling the actuator 48 described later.

FIG. 3 shows the structure of the damping blade 40. The damping blade 40 of the embodiment has a plurality of air outlets 44 formed at a front end portion thereof at predetermined intervals. The air supplied from the air blower 46 is supplied to the air outlets 44.
The structure is such that the damping air curtain 70 having a predetermined width L2 is formed in front of the damping blade 40. The damping air curtain 70 receives the wind 100 blown onto the structure 30 together with the body of the damping blade 40. Therefore, the damping blade 40 substantially functions as an area L2.times.H of the air curtain 70. That is, the damping blade 40 having the width L1 and the height H1
However, it functions as a large damping blade having a width L and a height H.

The damping blades 40 are arranged over a plurality of floors. Therefore, one air blower 46 may be provided for one damping blade 40 as shown in FIG. 3, or may be provided for each floor if necessary. In the former case, a large air blower 46 is required, but in the latter case, a small air blower 46 can be used. In this embodiment, the latter structure is adopted.
For example, when one damping blade 40 is arranged over 10 floors, an air blower 46 is provided for each damping floor on each floor of the 10 floors. To do.

FIG. 4 schematically shows an air flow passage for air conditioning provided in the structure 30 and an air flow passage for forming an air curtain.

In this structure 30, the upper floor 30A provided with the damping blade 40 and the lower floor 30B not provided with the damping blade have slightly different air flow paths.

In the upper floor 30A, each floor unit 200A which functions as a mixed air conditioning unit for forming an air curtain and air conditioning is provided behind the ceiling of each floor. Lower floor 30
In B, each floor unit 200B dedicated to air conditioning is provided behind the ceiling of each floor as in the conventional case.

FIG. 5 schematically shows an air conditioning system used in the embodiment. Roof 32 of structure 30
External fresh air 110 is taken in through an air filter from the air intake port 210 provided in the floor, and through a fresh air vertical duct 220 that functions as a fresh air supply path, to each floor unit 200A, 200B of each floor. Will be supplied to Further, from the central machine room 205 provided in the basement of the structure 30, cold / warm water for air conditioning is supplied to each floor unit 200 via the cold / hot water pipe 224, as in a normal air conditioning facility.

Units 20 on each floor are located above the ceiling on each floor.
An air conditioning duct 240 is piped from 0A and 200B, and an air outlet 242 toward the room is provided at a predetermined position of each air conditioning duct 240. And FIG.
As shown in (A), each floor unit 200A, 200B
Is a mixture of a part of the return air from the room and the outside air 110 taken in from the fresh air intake duct 220, and performs heat exchange with cold / hot water supplied via the cold / hot water pipe 224. It is formed to supply the conditioned air to the room through the air conditioning duct 240. In addition, each floor unit 200B of the lower floor 30B is configured to exhaust return air from the room, which is not used for air conditioning, from the exhaust duct 222 functioning as a supply duct.

Since such an air conditioning system for cooling and heating is already known, its details are omitted here.

In this embodiment, an air supply system for forming an air curtain is constructed by using a part of such a piping system for air conditioning.

The air supply system for forming the air curtain will be described in detail below.

When the vibration damping air curtain 70 is formed as in the vibration damping device of this embodiment, it is necessary to supply air for forming the air curtain from inside or outside the structure 30. At this time, if the air for forming the curtain is taken in from the outside of the structure 30, a duct for forming the air curtain must be separately provided in the structure 30 separately from the air conditioning duct, and the piping is There is a problem that the device becomes complicated and the cost of the entire device becomes expensive.

Further, when the air for forming the air curtain is taken in from the room of the structure 30, when a large amount of air is required for forming the air curtain, the atmospheric pressure in the room sharply drops, which causes a physiological problem. It may give a pleasant feeling to people in the room.

Therefore, in the vibration damping device of the embodiment, as a general rule, the air in the building is used to create the air curtain, and the amount of air required for forming the air curtain is insufficient if the amount of air taken in from the building is insufficient. In addition, the shortage is supplied from the vertical duct 220 for fresh air.

Therefore, as shown in FIG. 4, the upper floor 30
Each floor unit A is provided with each floor unit 200A having both the function of supplying air-conditioned air and the function of supplying air for curtain formation. As shown in FIG. 10, the air conditioning duct 24
In addition to 0, a curtain air supply duct 230 is provided.

An air intake 250 from the room and an exhaust duct 222 from the lower floors are connected to the curtain air supply duct 230. Further, as shown in FIG. 11, a branch duct 204 branched from a fresh air intake vertical duct 220 is connected from each floor unit 200A, and a desired amount of fresh air 110 can be taken in by opening and closing the damper 202. It is configured to be able to.

The curtain air supply duct 2
The curtain forming air supplied to 30 is temporarily stored in the chamber 232 provided at each corner,
An air blower 46 (not shown) installed in the chamber 232 is used to supply a required amount of air to the damping blades 40.

In this way, the air required for forming the air curtain is supplied from each chamber 232 to each damping blade 40, and the surplus air circulates to each floor unit 200A through the supply duct 230. It is configured to come back. At this time, if the amount of air that circulates and returns is equal to or greater than the amount of air required for air conditioning of each floor, an unnecessary amount of return air of the structure 30 passes through an exhaust duct (not shown). It is configured to be discharged to the outside.

In this way, each floor unit 200A
When the air circulated in the curtain air supply duct 230 returns, the return air and the vertical duct 220 for fresh air are returned.
The air is mixed with the fresh air obtained via the air-conditioning unit and is supplied to the room through the air-conditioning duct 240.

Incidentally, FIG. 6 (B) schematically shows the flow of air for such damping and air conditioning.

FIG. 12 shows a circuit diagram of the system of the embodiment. In the system of the embodiment, an anemometer 50a and anemometer 50b are provided as the wind sensor (wind direction / anemometer) 50.

The wind speed and the wind direction of the wind 100 in the sky above the super high-rise structure 30 are determined by the sensors 50a,
It is detected by 50b and input to the damping blade control circuit 60.

Further, when the wind 100 blows on the super high-rise structure 30, various vibrations are generated above the structure,
In particular, a Karman vortex is generated on the surface opposite to the surface on which the wind 100 blows, which causes the structure 30 to vibrate in the direction orthogonal to the wind direction.

The vibration amount and the vibration direction of the super high-rise structure 30 as described above are detected by the vibration sensor 52 installed on the upper floor of the building so that the horizontal two-direction simultaneous measurement can be performed, and the damping blade control of the control circuit 80 is performed. It is input to the circuit 60.

The damping blade control circuit 60 includes the above-mentioned sensors 50.
Based on the detection signals from a, 50b, and 52, each damping blade 40 is controlled so as to suppress the vibration of the super high-rise structure 30.

Specifically, the damping blade control circuit 60 is
The protrusion length calculation unit 62, the air curtain length calculation unit 64, and the direction calculation unit 66 are included, and the protrusion length L1 of each damping blade 40 from the outer wall of the structure so as to suppress the vibration of the structure in accordance with the air volume and the wind direction. The curtain length L2 and the blade direction are calculated for each damping blade 40. Then, based on the calculated value, each damping blade 40
The actuator 68 provided corresponding to is controlled to be driven.

The actuator 68 provided corresponding to each damping blade 40 includes the above-mentioned air blower 46 and the damping blade actuator 48 that advances and retracts the damping blade 40 and directs it in an arbitrary direction. That is, each actuator 6
The reference numeral 8 projects the corresponding damping blade 40 from the structure 30 to the outside based on the value of the protrusion length L1 calculated by the protrusion length calculation unit 62, and further suppresses the vibration based on the blade direction calculated by the direction calculation unit 66. The wing 40 is directed in a predetermined direction. Further, the air blower 46 is driven based on the value calculated by the curtain length calculation unit 64, and the air curtain 70 having a predetermined length L2 is formed in front of the damping blade 40.

Further, the control circuit 80 of the embodiment is provided with an air supply section control circuit 82. The air supply unit control circuit 82 is provided for the air conditioning unit 20 provided on each floor.
0A and 200B are controlled to air-condition each floor via the air-conditioning duct 240. Further, each floor unit 200A on each floor is controlled to supply curtain forming air to the damping blades via the curtain air supply duct 230. Since the air conditioning for each floor is performed in the same manner as in the prior art, the curtain air supply operation will be described in detail here.

The air supply section control circuit 82 includes a comparison section 8
Including 4. The comparison unit 84 compares the amount of air required to form the air curtain for each floor with the allowable amount of air that can be taken from the room, and as a result of this comparison, the amount of air required to form the air curtain is determined. When it is larger than the allowable air volume, each floor unit 200A is
The damper 202 is formed so as to open and close. Here, the allowable air amount is set on the basis of a limit value of the pressure drop that does not make a person in the room uncomfortable.

FIG. 13 is a schematic flow chart showing the air curtain forming and air conditioning operation of the embodiment.

First, the length of the air curtain 70 of each damping blade is determined based on the detection output from each sensor installed on the roof of the structure 30 or the like, and the blower for obtaining this air curtain length is determined. The air volume is obtained (step S1).

Next, based on the obtained blower air volume,
The amount of air required to create the air curtain is determined for each floor (step S2).

Next, for each floor, it is judged whether or not the amount of air required to form the air curtain exceeds the allowable intake amount from the room (step S3).

<When the amount of air required to form the air curtain is less than the amount of return air from the room> As a result of this determination, if the required air flow is less than the allowable intake amount, the damper 202 of the air conditioning unit 00A Closed controlled. Figure 11
In (A), the flow of air in and around each floor unit 200A at this time is schematically shown. As shown in FIG. 7, when the damper 202 is closed, the curtain air supply duct 230 receives the return air 120 from the floor from the intake duct 250 and the lower floor from the exhaust duct 222 as shown in FIG. Of the return air 122 and is circulated in the supply duct 230.

Then, the valve of the nozzle used for the air curtain is opened, the fan of the blower 46 provided in each chamber 232 is driven (step S5), and the air curtain of a predetermined length is passed from the damping blade 40. Will be blown out.

When the remaining air which has circulated in the supply duct 230 reaches the floor unit 200A, the return air is supplied to the fresh air 11 through the fresh air intake vertical duct 220 in the floor unit 200A.
Mixed with 0. This mixed air is used for each floor unit 2
After the temperature is adjusted to a predetermined temperature by the heat exchanger in 00A and dust and the like are further removed by the filter, it is sent to the air conditioning duct 240 to air-condition the room, as shown in FIG. <When the amount of air required to form the air curtain is larger than the allowable amount of air that can be taken in from the room> In addition, in the determination in step S3, the amount of air required to form the air curtain is the allowable amount of intake from the room. If it exceeds, the damper opening corresponding to the intake amount of the insufficient air amount is determined (step S6), and the damper 202 is controlled to be opened (step S7).

FIG. 11B shows the flow of air in each floor unit 200A and its surroundings in this state.

In this case, the curtain air supply duct 23
At 0, the return air 120 from the room is taken in via the intake port 250, the return air 122 from the lower floor is taken in via the exhaust duct 222, and the fresh air is taken in via the vertical duct 220 for fresh air intake. . In this way, the mixed air taken into the supply duct 230 is blown out from the respective damping blades 40 by the blowers provided in the respective chambers 232 while making a round in the supply duct 230 to form the air curtain 70. To do.

When the air circulating in the supply duct 230 reaches the floor unit 200A, it is mixed with the fresh air taken in through the fresh air intake vertical duct 220 in the floor unit 200A.
This mixed air is adjusted to a predetermined temperature by a heat exchanger in each floor unit 200A, and after dust and the like are removed by a filter, the mixed air is supplied into the room through an air conditioning duct 240 as shown in FIG. It <Case where air curtain is not formed> When it is not necessary to form the air curtain, the return air 120 and 122 taken into the supply duct 230 makes one round in the supply duct 230, and then excess air is removed from the final corner portion. It is discharged to the outside through a discharge hole (not shown) provided in the. Then, the remaining air is mixed with fresh air through each floor unit 200A, and after being air-conditioned, is supplied to the air-conditioning duct 240 and is exhausted indoors.

In the case of the above-mentioned device, the supply duct 230
The duct (220) for taking in fresh air and the duct (220) for taking in fresh air to the air conditioning duct 240 can be made common. As a result, the duct piping structure can be simplified.

When the required air curtain cannot be formed with the amount of air taken in from each floor, fresh air from the fresh air intake vertical duct 220 is supplied to the supply duct 230.
Since it is designed to be taken in, it is possible to prevent sudden decompression in the room.

In the embodiment, the return air taken in the curtain air supply duct 230 is not only the return air 120 from the floor but also the return air 122 from the lower floor.
Therefore, compared to the case where the exhaust duct 222 is not provided, the allowable intake air amount from the room can be set larger. Therefore, the maximum flow path capacity of the vertical duct 220 for fresh air intake can be set smaller accordingly.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention.

In the above-described embodiment, an example in which a part of the return air from the supply duct 230 is supplied to the air conditioning duct 240 has been described, but the terminal end of the supply duct 230 is not connected to the air conditioning duct 240 and is opened indoors. Along with the structure, the starting end of the supply duct 230 and the air conditioning duct 24
The single fresh air duct may be connected to each floor unit 200A arranged at the start end of 0. Even in this case, it is possible to obtain the same effect as that of the above embodiment.

In the above embodiment, the air from the lower floor 30B is taken in. However, if the amount of air necessary for forming the air curtain is sufficient to take in air from the upper floor 30A, it is not always necessary. Not necessary. Even in this case, it is possible to obtain the same effect as that of the above embodiment.

[0068]

As described above, according to the present invention,
An air blow-out portion for creating an air curtain is provided on a plurality of damping blades provided above the structure. As a result, even if the damping blade itself is small, the effective length of the damping blade will be the sum of the length of the damping blade and the length of the damping air curtain, so that a large damping blade will be obtained. It is possible to obtain a vibration damping effect similar to that provided with.

Further, according to the present invention, as the air for forming the air curtain, the structure in which the indoor air is utilized within the allowable air amount range is adopted. When the amount of air required to form the air curtain is insufficient only by the amount of air taken in from inside the structure, fresh air for air conditioning supplied from outside the structure via the fresh air supply passage is supplied to the supply duct. I try to sort them out.

With such a structure, it is possible to create an air curtain while effectively preventing a sudden pressure reduction in the room.

Further, since the fresh air supply passage used for air conditioning is also used for forming the air curtain, the piping structure in the structure can be simplified accordingly.

Further, the maximum flow passage capacity of the fresh air supply passage can be reduced as compared with the case where all the air necessary for forming the air curtain is taken in from outside the structure, and the cost of the entire system can be reduced accordingly. You can

Further, in the vibration damping device of the third aspect, when the air curtain is formed on the vibration damping blade, the comparison unit compares the allowable intake air amount from the room with the air amount necessary for forming the air curtain. However, when the amount of air required for forming the air curtain is larger than the allowable intake air amount, the shortage is supplied from the fresh air supply passage to the supply duct.

By doing so, fresh air can be automatically supplied to the supply duct.

Further, in the vibration damping device of the fourth aspect, the air taken in from the room on the lower floor where the damping blades are not provided is supplied to the upper floor where the air curtain is formed, thereby producing the air curtain. I am trying to replenish the air for it.

As a result, the room air on the lower floor, which is originally discarded as exhaust gas, can be used as the air for creating the air curtain. For this reason, the allowable amount of air that can be taken in from the room can be correspondingly increased.
Therefore, the maximum flow capacity of the fresh air supply path can be reduced accordingly, and the cost of the entire system can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic perspective explanatory view of a super high-rise structure to which the present invention is applied.

FIG. 2 is an explanatory diagram of blade direction control of a damping blade.

FIG. 3 is a schematic explanatory view showing a structure of a damping blade used in this embodiment.

FIG. 4 is a schematic explanatory diagram of an air flow path in a super high-rise structure.

FIG. 5 is a schematic explanatory diagram of an air conditioning system provided in a structure.

FIG. 6 (A) is a schematic explanatory view of an air flow when only air conditioning is performed, and FIG. 6 (B) is a schematic explanatory view of an air flow when both air conditioning and damping are performed. Is.

FIG. 7 is an explanatory diagram of a flow path of air flowing for forming an air curtain when the amount of air required for forming the air curtain is within the allowable intake air amount from the room.

FIG. 8 is an explanatory diagram of a flow of air for air conditioning.

FIG. 9 is an explanatory view of the flow of air for forming the air curtain and the flow of air for air conditioning associated therewith when the amount of air required for forming the air curtain is equal to or more than the allowable intake air amount from the room. is there.

FIG. 10 is an explanatory diagram of a flow of air for air conditioning.

FIG. 11 is an explanatory diagram of an air flow in each floor unit and its surroundings.

FIG. 12 is a block diagram of the vibration damping system of the embodiment.

FIG. 13 is a schematic flowchart showing the operation of the vibration damping system of the embodiment.

FIG. 14 is a schematic explanatory view of a conventional vibration damping device.

FIG. 15 is an explanatory diagram showing the principle of Karman vortex generation.

[Explanation of symbols]

 30 Super high-rise structure 70 Air curtain 80 Control circuit 200A Each floor unit 220 Fresh air intake vertical duct 230 Curtain air supply duct 240 Air conditioning duct

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mamoru Okamoto 1-7-1, Kyobashi, Chuo-ku, Tokyo Within Toda Construction Co., Ltd. (72) Inventor Masayuki Haama 1-1-7, Kyobashi, Chuo-ku, Tokyo No. Toda Construction Co., Ltd. (72) Inventor Masahiko Suzuki 1-7-1, Kyobashi, Chuo-ku, Tokyo Inside Toda Construction Co., Ltd.

Claims (4)

[Claims] 1. A vibration damping device for damping the vibration of a structure due to wind pressure, comprising: a plurality of vibration damping blades arranged in a vertical direction above the structure; Controlling an air supply unit for supplying an air curtain creation air to the structure, an air supply unit for supplying air for creating an air curtain to the air supply unit, and an air supply unit for supplying conditioned air to the structure. And a supply unit control unit for supplying air necessary for forming the air curtain to the air blowing unit, the air supply unit introducing fresh air from the outside of the structure into the structure. An air supply duct for a curtain to be supplied to, an air conditioning duct for supplying the air necessary for air conditioning into the room into the room, and taking in air from the fresh air supply path and the structure,
The air supply duct for curtain and a mixing air conditioning unit for supplying to the air conditioning duct; and the supply unit control means, after taking in air from the fresh air supply path and the structure to air-condition, and then performing the air conditioning duct And the amount of air required to form the air curtain is less than the allowable intake air amount that can be taken from the structure,
When air is taken from the inside of the structure and is supplied to the curtain air supply duct, and the amount of air required to form the air curtain is greater than the allowable intake air amount, air is supplied from the inside of the structure and the fresh air supply passage. And a vibration control device for a structure, characterized in that the mixed air conditioning unit is controlled so as to supply the air to the curtain air supply duct. 2. The mixture air conditioning unit according to claim 1, wherein when the amount of air required to form the air curtain is larger than the intake allowable amount of air, the insufficient air is supplied from the fresh air supply passage to the curtain. A vibration control device for a structure, comprising a distribution unit for distributing to an air supply duct. 3. The air curtain according to claim 1, wherein the supply unit control unit includes a comparison unit that compares the amount of air required for forming the air curtain with the allowable intake air amount. When the amount of air required to form the above is larger than the allowable intake air amount, controlling the distribution unit of the mixing air conditioning unit to distribute the insufficient air from the fresh air supply passage to the curtain air supply duct. Vibration control device for characteristic structures. 4. The supply duct according to any one of claims 1 to 3, wherein a supply duct for supplying air taken in from a lower floor without a damping blade is connected to the supply duct. Vibration control device for structures.