Wind-resistant device and control method for wind-resistant device

Abstract

To provide a wind-resistant device and a method for controlling the wind-resistant device that can obtain a large braking force even if a friction coefficient of a friction surface is small.SOLUTION: A wind-resistant device 2 comprises: a plurality of first plate materials 32 connected to a structure side of a seismic isolation structure and arranged at intervals in a first direction with their plate surfaces facing in the first direction; a plurality of second plate materials 22 connected to the other structure side and arranged alternately with the plurality of first plate materials 32 at intervals in the first direction and arranged with their plate surfaces facing in the first direction; a friction material 40 placed between the first plate materials 32 and the second plate materials 22; and a jack device 45 that joints the first plate materials 32, the second plate materials 22 and the friction material 40 while allowing the first plate materials 32 and the second plate materials 22 to be displaced relatively in a direction intersecting the first direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a wind-resistant device and a method for controlling the wind-resistant device. [Background technology]

[0002] In recent years, buildings have tended to become larger and more complex due to redevelopment, and this trend is expected to continue in the future. Large-scale complex buildings require high disaster prevention capabilities, and the structures are required to have high standards in both earthquake-resistant and wind-resistant design. Patent Document 1 listed below discloses a device for preventing wind sway in buildings.

[0003] The adoption of a base isolation structure is one way to improve the earthquake resistance grade. However, for super-high-rise buildings with a large wind-receiving surface area and large wind loads, adopting a base isolation structure with low horizontal rigidity would be disadvantageous in terms of wind-resistant design, so it is rare for base isolation to be adopted for super-high-rise buildings over 160 meters in height.

[0004] On the other hand, there is a strong need for seismic isolation structures due to the experience of earthquake damage, and measures to counter wind resistance in high-rise seismically isolated buildings include increasing the rigidity and damping capacity of the seismic isolation layer, and using wind-resistant shear pins, which physically secure the building in place by inserting metal pins during strong winds. However, wind-resistant shear pins rely on manned operation, which is not necessarily ideal. Furthermore, increasing the rigidity and damping capacity of the seismic isolation layer for wind-resistant design directly leads to sacrificing the seismic isolation effect, which works against the seismic design.

[0005] Nowadays, super high-rise buildings over 200m in height are becoming mixed-use, and the need for seismic isolation is increasing, but the trade-off between earthquake-resistant design and wind-resistant design in super high-rise buildings is a design issue that affects architectural plans and construction costs. Given the above background, it can be said that the frontier in technological development for super high-rise seismic isolation is to develop new wind countermeasure devices and resolve the trade-off between earthquake-resistant design and wind-resistant design. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-11164 Summary of the Invention [Problem to be solved by the invention]

[0007] (1) Wind protection equipment that only contributes to wind is required Wind protection devices that only contribute to wind resistance can generally be achieved by building managers inserting and removing shear pins, but there is a performance issue with shear pins, in that once inserted, they cannot be released until the wind subsides or they break. Furthermore, during a storm, building occupants must go to the seismic isolation layer themselves to insert the shear pins, which is seen as a major burden on management operations. Another problem is that if an earthquake occurs during a storm, the pins will break and their performance will not be sustained.

[0008] One solution is to create a wind protection device for buildings that uses friction as a braking force by pressing a jack against a friction plate instead of a shear pin. Using a friction plate and jack allows for semi-active control, reducing the burden on management. It also allows for control-based activation and deactivation at any time, creating a wind protection device that only works during strong winds. Another proposed mechanism is to use an earthquake oil damper to lock the building like a hydraulic jack by controlling the oil flow path in the damper.

[0009] (2) The wind loads that super-high-rise buildings are subjected to are so large that it is not practical to use wind protection devices alone to withstand them. If a building were to be completely secured with wind protection devices, 100% of the wind load acting on the building would be applied to the devices, which would be required to bear loads of several thousand tons in some cases. In practice, devices capable of bearing such large loads would have to be extremely large, and the frame of the building that supports the devices would also have to be unrealistically sized, which would be a problem.

[0010] A desirable solution is to have the device slide (move) in response to the wind load to release the force and allow deformation of the seismic isolation layer. By allowing sliding, the wind load can be shared by seismic isolation devices and dampers other than the wind protection device, allowing them to be used in conjunction with other devices. Sharing the force with other devices makes it possible to miniaturize the wind protection device and design surrounding components.

[0011] (3) Ensuring the performance of a friction surface that allows deformation and allows sliding As mentioned above, by allowing sliding, wind protection devices can be made smaller and more realistic in scale, but the cumulative distance of sliding that the friction surface experiences during a storm becomes long as the wind load is repeated over a long period of time.When using friction as a braking force, a large coefficient of friction is desirable, but surfaces with large friction surfaces generally experience significant performance fluctuations (frictional force reduction) when rubbed, so there is a trade-off between a high coefficient of friction and performance stability against sliding.

[0012] Therefore, the present invention has been made in consideration of the above circumstances, and provides a wind-resistant device and a method for controlling the wind-resistant device that can obtain a large braking force even if the friction coefficient of the friction surface is small. [Means for solving the problem]

[0013] In order to achieve the above object, the present invention employs the following means. That is, the wind-resistant device of the present invention comprises a plurality of first plate materials connected to the structure side of the seismic isolation structure and arranged at intervals in a first direction with their plate surfaces facing the first direction; a plurality of second plate materials connected to another structure side and arranged alternately with the plurality of first plate materials at intervals in the first direction and with their plate surfaces facing the first direction; a friction material arranged between the first plate materials and the second plate materials; and a jack device that connects the first plate materials, the second plate material, and the friction material while allowing the first plate materials and the second plate materials to be displaced relatively in a direction that intersects the first direction.

[0014] In the wind-resistant device configured in this manner, a plurality of first plates connected to the structure side of the seismic isolation structure and a plurality of second plates connected to the other structure side are arranged alternately in a first direction. Friction materials are arranged between the first and second plates. By arranging multiple friction materials, multiple friction surfaces are secured between the friction materials and the first plate materials and between the friction materials and the second plate materials. Even if the friction coefficient of each friction material is small, the number of friction surfaces increases, ensuring a large friction force for the entire wind-resistant device. Furthermore, by clamping these first and second plates and friction materials with a jack device, a pressing force acts in the first direction, generating a larger friction force. Therefore, a large braking force can be obtained even if the friction coefficient of the friction surfaces is small.

[0015] In addition, in the wind-resistant device of the present invention, the jack device may include a jack body, a shaft portion connected to the jack body and inserted into through holes formed in the first plate material, the second plate material, and the friction material in the first direction, and a pin connected to the shaft portion, and the jack body and the pin may sandwich the first plate material, the second plate material, and the friction material.

[0016] The wind-resistant device configured in this way uses a center-hole jack, in which the shaft is inserted into through-holes formed in the first plate, the second plate, and the friction material, and the jack body and pin clamp the first plate, the second plate, and the friction material together. As a result, the jack reaction force is self-balanced, so the jack force is not transmitted to anything other than the wind-resistant device, and can be applied efficiently to the wind-resistant device.

[0017] In addition, in the wind-resistant device of the present invention, the length in the cross direction of the through hole formed in either the first plate material or the second plate material may be longer than the diameter of the shaft portion, and the shaft portion may be capable of moving in the cross direction through the through hole formed in either the first plate material or the second plate material.

[0018] In a wind-resistant device configured in this manner, either the first plate material or the second plate material can be moved in a direction intersecting with the other of the first plate material and the second plate material to ensure a friction surface between the friction material and the first plate material and a friction surface between the friction material and the second plate material.

[0019] In the wind-resistant device according to the present invention, the shaft may connect the first plate member and the second plate member so as to be rotatable around the first direction.

[0020] In a wind-resistant device configured in this manner, the first plate material and the second plate material can be rotated around a first direction to ensure a friction surface between the friction material and the first plate material and a friction surface between the friction material and the second plate material.

[0021] Furthermore, in the wind-resistant device according to the present invention, the pressing force generated when the jack device connects the first plate member, the second plate member, and the friction material may be changeable.

[0022] In the wind-resistant device configured in this manner, the braking force can be adjusted by adjusting the pressing force of the jack device.

[0023] Furthermore, the control method for a wind-resistant device according to the present invention is the control method for a wind-resistant device described in item 1 above, in which under normal circumstances, no pressing force is generated when the jack device connects the first plate material, the second plate material, and the friction material, and in the event of a strong wind with a wind speed equal to or greater than a predetermined speed, the jack device applies the pressing force.

[0024] In the control method for a wind-resistant device configured in this manner, when a strong wind blows at a predetermined wind speed or higher, the jack device can exert a pressing force to exert a braking force.

[0025] Furthermore, the control method for a wind-resistant device according to the present invention is the control method for a wind-resistant device described in the above paragraph 1, wherein under normal circumstances, no pressing force is generated when the jack device connects the first plate material, the second plate material, and the friction material, and when an earthquake of a predetermined seismic force or greater occurs, the jack device applies the pressing force.

[0026] In the control method for a wind-resistant device configured in this manner, when an earthquake of a predetermined seismic force or greater occurs, the jack device can exert a pressing force to exert a braking force. [Effects of the Invention]

[0027] According to the wind-resistant device and the method for controlling the wind-resistant device of the present invention, a large braking force can be obtained even if the friction coefficient of the friction surface is small. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a diagram showing the configuration of a building to which a wind-resistant device according to a first embodiment of the present invention is applied. [Figure 2] 1 is a diagram showing a seismic isolation layer of a building to which a wind-resistant device according to a first embodiment of the present invention is applied. [Figure 3] 1 is a schematic exploded perspective view of a wind-resistant device according to a first embodiment of the present invention; [Figure 4] 1 is a schematic side view of a wind-resistant device according to a first embodiment of the present invention. FIG. [Figure 5] 1 is a schematic plan view of a wind-resistant device according to a first embodiment of the present invention. FIG. [Figure 6] FIG. 6 is a schematic side view of a wind-resistant device according to a second embodiment of the present invention. [Figure 7] FIG. 5 is a schematic plan view of a wind-resistant device according to a second embodiment of the present invention. [Figure 8] 1 is a diagram showing an example of installation of a wind-resistant device according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0029] (First embodiment) A wind-resistant device and a method for controlling a wind-resistant device according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the configuration of a building to which a wind-resistant device according to a first embodiment of the present invention is applied. As shown in FIG. 1, foundation A1 and building A2 are arranged with a gap between them in the vertical direction. A seismic isolation device 11 and a wind-resistant device 2 are installed between foundation A1 and building A2. The seismic isolation device 11 is composed of a seismic isolation bearing such as a rolling bearing, laminated rubber bearing, or sliding bearing. Between foundation A1 and building A2 is a seismic isolation layer 10. Foundation A1 corresponds to another structure in the claims. Building A2 corresponds to a structure with a seismic isolation structure in the claims.

[0030] FIG. 2 is a diagram showing the seismic isolation layer 10 of the building A2. As shown in FIG. 2, the wind-resistant device 2 connects a foundation skeleton A11 extending upward from a foundation A1 and a building skeleton A21 extending downward from a building A2.

[0031] FIG. 3 is a schematic exploded perspective view of the wind-resistant device 2. As shown in FIG. As shown in FIG. 3, the wind-resistant device 2 has a foundation-side member 20, a building-side member 30, a friction material 40, and a jack device 45.

[0032] The base side member 20 includes an outer tubular member 21 and a plurality of base side blades 22. The base side blades 22 correspond to the first plate member in the claims.

[0033] The outer tube member 21 is formed so as to open on one side X2 in a predetermined direction along the horizontal direction (hereinafter referred to as direction X). In the illustrated example, the outer tube member 21 is also open in the vertical direction (hereinafter referred to as vertical direction Z). The outer tube member 21 has a pair of wall portions 21a arranged opposite each other in a direction (hereinafter referred to as direction Y) perpendicular to direction X along the horizontal direction. Direction X corresponds to the intersecting direction intersecting with the first direction in the claims.

[0034] FIG. 4 is a schematic side view of the wind-resistant device 2, in which the wall portion 21a of the outer tubular member 21 and the wall portion 31a of the outer tubular member 31 are not shown. As shown in FIG. 4, the base side blades 22 are arranged at intervals in the vertical direction Z. In the illustrated example, four base side blades 22 are arranged, but the number of base side blades 22 can be set as appropriate. The base side blades 22 are formed in a plate shape. The plate surface of the base side blade 22 faces the vertical direction Z. The vertical direction Z faces the first direction in the claims.

[0035] The ends of the multiple base side blades 22 on the other side X1 in the direction X are connected by a connecting member 23. The connecting member 23 is connected to the X1 side end 21b of the outer tubular member 21. The base side blades 22 are formed with loose holes (through holes) 24 that penetrate in the vertical direction Z. The loose holes 24 have a shape that is elongated in the direction X.

[0036] FIG. 5 is a schematic plan view of the wind-resistant device 2. As shown in FIG. A foundation-side connecting portion 26 that protrudes toward the arrow X1 side is provided at the X1-side end portion 21b of the outer tubular member 21. As shown in Fig. 2, a foundation-side supporting portion 27 is provided on the foundation body A11. As shown in Fig. 5, for example, the foundation-side supporting portion 27 is a pair of plates that are arranged apart from each other in the vertical direction, and the foundation-side connecting portion 26 is sandwiched between the plates and connected by a shaft portion 28 that extends in the vertical direction Z.

[0037] As shown in Fig. 3, the building side component 30 includes an outer tubular component 31 and a plurality of building side blades 32. The building side blades 32 correspond to the second plate member in the claims.

[0038] The outer tube member 31 is formed to open on the other side X1 in the direction X. In the illustrated example, the outer tube member 31 is also open in the up-down direction Z. The outer tube member 31 has a pair of wall portions 31a arranged opposite each other in the direction Y. The pair of wall portions 31a are arranged inside the pair of wall portions 21a of the outer tube member 21 in the direction X. Each wall portion 31a and each wall portion 21a are arranged adjacent to each other in the direction X. Adjacent wall portions 31a and wall portions 21a are connected by a linear guide connecting portion 29. The linear guide connecting portion 29 connects the wall portion 31a and wall portion 21a so that they can move relatively in the direction X. For example, the linear guide connecting portion 29 is configured so that an elongated hole that is long in the direction X is formed in the wall portion 21a, and a pin inserted into the elongated hole is connected to the wall portion 31a. The linear guide connecting portion 29 can be configured as appropriate as long as the wall portion 31a and the wall portion 21a are relatively movable in the X direction.

[0039] As shown in Figure 4, multiple building-side blades 32 are arranged at intervals in the vertical direction Z. In the illustrated example, four building-side blades 32 are arranged, but the number of building-side blades 32 can be set as appropriate. The building-side blades 32 are formed in a plate shape. The plate surface of the building-side blade 32 faces the vertical direction Z. The building-side blades 32 and the foundation-side blades 22 of the foundation-side member 20 are arranged alternately in the vertical direction Z.

[0040] The friction material 40 is disposed between the upper and lower building-side blades 32 and the foundation-side blades 22. The plate surfaces of the friction material 40 face in the vertical direction Z.

[0041] The ends of the multiple building-side blades 32 on one side X2 in the direction X are connected by a connecting member 33. The connecting member 33 is connected to the end 31b on one side X2 of the outer tubular member 31. Each of the building-side blades 32 and the friction material 40 has a through hole that penetrates in the up-down direction Z. The diameter of the through hole formed in the building-side blade 32 and the friction material 40 is sufficiently smaller than the length in the direction X of the loose hole 24 formed in the foundation-side blade 22.

[0042] A building-side connecting portion 36 that protrudes toward the one side X2 is provided at the end portion 31b of the one side X2 of the outer tubular member 31. As shown in Fig. 2, a building-side supporting portion 37 is provided on the building skeleton A21. As shown in Fig. 5, for example, the building-side supporting portion 37 is a pair of plates that are arranged apart vertically, and the building-side connecting portion 36 is sandwiched between the plates and connected by a shaft portion 38 that extends in the vertical direction Z.

[0043] As shown in FIG. 3, the jack device 45 has a jack body 46, a shaft 47, and a pin 48. The jack device 45 is extendable and retractable by a drive pump 49 (see FIG. 2). The shaft 47 is connected to the jack body 46 so as to be inserted in the vertical direction Z. The shaft 47 is inserted through the loose hole 24 of the foundation-side blade 22, the through hole of the friction material 40, and the through hole of the building-side blade 32. A pin 48 is connected to the lower end of the shaft 47. This allows the foundation-side blade 22 to move relative to the building-side blade 32 and the friction material 40 in the direction X, while connecting the foundation-side blade 22, the building-side blade 32, and the friction material 40. When the drive pump 49 is driven, the jack device 45 compresses the foundation-side blade 22, the building-side blade 32, and the friction material 40 in the vertical direction Z, applying a pressing force. When the drive pump 49 stops, the jack device 45 is turned off and no pressing force is applied. When the drive pump 49 is driven, the jack device 45 is turned on and pressing force is applied. By adjusting the drive pump 49, the pressing force of the jack device 45 can be changed in multiple steps or continuously without steps. Note that in the event of a failure of the drive pump 49, the jack device 45 may be configured to be movable by human power or the like.

[0044] The jack body 46 and pin 48 sandwich the foundation-side blade 22, building-side blade 32, and friction material 40 in the vertical direction Z. By adjusting the driving force that drives the jack body 46, it is possible to adjust the force that sandwiches the foundation-side blade 22, building-side blade 32, and friction material 40, that is, the friction force that occurs on the friction surface between the foundation-side blade 22 and the friction material 40 and the friction force that occurs on the friction surface between the building-side blade 32 and the friction material 40.

[0045] 1, building A2 is provided with an anemometer 61 and a seismometer 62. The anemometer 61 and the seismometer 62 are connected to a control unit 63. The control unit 63 receives the measurement results of the anemometer 61 and the seismometer 62, and drives the drive pump 49 under predetermined conditions to adjust the frictional force generated between the foundation-side blade 22 and the frictional material 40 and the frictional force generated between the building-side blade 32 and the frictional material 40.

[0046] Table 1 below shows the braking force when a friction surface with a friction coefficient μ=0.1 is used.

[0047] [Table 1]

[0048] An example of a method for controlling the wind-resistant device 2 will now be described. Normally, no pressing force is applied to the jack device 45. In the event of a storm with a wind speed exceeding a predetermined value, the jack device 45 applies a pushing force. Basically, the following control is performed based on wind observation data from the anemometer 61. When the wind speed exceeds a certain value, the brake of the wind-resistant device 2 is activated, and when the wind speed falls below that value, the brake of the wind-resistant device 2 is released. Note that the wind-resistant device 2 can be freely released by issuing a command.

[0049] In addition to wind speed, the brakes on the wind-resistant device 2 can be controlled by commands from the control unit 63. For example, a watchman may control the brakes by checking the weather forecast.

[0050] Even if an earthquake occurs at the same time as the device is activated by a storm, it can continue to operate. Because the friction surface can slide, there is no problem even if the vibrations of an earthquake are added to the vibrations of the wind.

[0051] In addition, in the event of an earthquake with a predetermined seismic force or greater, the jack device 45 applies a pressing force.

[0052] In the wind-resistant device 2 configured in this manner, the multiple building-side blades 32 of the building-side component 30 connected to the building A2 side and the multiple foundation-side blades 22 of the foundation-side component 20 connected to the foundation A1 side are arranged alternately in the vertical direction Z. Friction materials 40 are arranged between the building-side blades 32 and the foundation-side blades 22. The arrangement of multiple friction materials 40 ensures multiple friction surfaces between the friction materials 40 and the building-side blades 32 and between the friction materials 40 and the foundation-side blades 22. Even if the friction coefficient of each friction material 40 is small, the number of friction surfaces increases, ensuring a large frictional force for the entire wind-resistant device 2. Furthermore, by sandwiching the building-side blades 32, foundation-side blades 22, and friction materials 40 with a jack device 45, a pressing force acts in the vertical direction Z, generating a larger frictional force. Therefore, even if the friction coefficient of the friction surfaces is small, a large braking force can be obtained.

[0053] Furthermore, a center hole jack is used in which the shaft 47 is inserted into the through holes and loose holes 24 formed in the building-side blade 32, foundation-side blade 22, and friction material 40, and the building-side blade 32, foundation-side blade 22, and friction material 40 are sandwiched between the jack body 46 and pin 48. Therefore, the jack reaction force is self-balanced, so the jack force is not transmitted to anything other than the wind-resistant device 2, and can be applied efficiently to the wind-resistant device.

[0054] In addition, the foundation side blade 22 of the foundation side member 20 can be moved in the direction X relative to the building side blade 32 of the building side member 30 and the friction material 40, thereby ensuring a friction surface between the friction material 40 and the building side blade 32 and a friction surface between the friction material 40 and the foundation side blade 22.

[0055] Moreover, by adjusting the pressing force of the jack device 45, the braking force of the wind-resistant device 2 can be adjusted.

[0056] Furthermore, in the event of a strong wind with a wind speed equal to or greater than a predetermined value, the jack device 45 exerts a pressing force to exert a braking force on the wind-resistant device 2.

[0057] In addition, in the event of an earthquake of a predetermined magnitude or greater, the jack device 45 can exert a pressing force to exert a braking force on the wind-resistant device 2.

[0058] Furthermore, because the wind-resistant device 2 operates in one direction, X, it can be made more compact than a device that operates in two directions. The dimensions of the wind-resistant device 2 are equivalent to those of a general seismic isolation oil damper.

[0059] Furthermore, by using a center hole jack as the jack device 45, the jack pressing force acting on the friction material 40 is self-balanced within the device, making a reaction beam unnecessary.

[0060] Furthermore, by installing multiple jack devices 45 on one wind-resistant device 2 or by changing the number of friction materials 40, a wide range of load settings from small to large are possible.

[0061] By using a seismometer 62 in combination, the following options can be added. During a medium to large earthquake, if the building continues to shake even after the earthquake has subsided, the brakes can be activated (reducing after-shocks). If the earthquake motion exceeds the magnitude assumed for the design, the brakes will be activated to reduce seismic deformation. It is also possible to control the braking force from moment to moment, making it an active damper that can be used for both wind resistance and earthquake resistance.

[0062] Additionally, Wind Resistant Device 2 can be expected to withstand the intercept load required for wind ranks A and B in the JSSI guidelines. The damping force of Wind Resistant Device 2 can be taken into account in wind response analysis. It is effective in improving livability during storms and reducing damage to the seismic isolation device by suppressing deformation of the seismic isolation layer. The friction surface is able to slide, so performance does not change significantly in a single storm.

[0063] Furthermore, if excessive deformation occurs in the seismic isolation layer, the device can collide and contribute to keeping the building still.

[0064] (Second embodiment) Next, a wind-resistant device according to a second embodiment of the present invention will be described mainly with reference to Figures 6 and 7. In the following description of the embodiment, the same or similar members and parts as those in the above-described embodiment will be designated by the same reference numerals, and their description will be omitted, and only configurations different from the embodiment will be described.

[0065] Fig. 6 is a schematic side view of a wind-resistant device according to a second embodiment of the present invention, and Fig. 7 is a schematic plan view of a wind-resistant device according to the second embodiment of the present invention. 6 and 7, in the wind-resistant device 2A according to this embodiment, a connecting member 23 that connects the plurality of foundation-side blades 22 of the foundation-side member 20 is provided with a foundation-side connecting portion 26. The foundation-side connecting portion 26 is connected to the foundation frame A11 so as to be rotatable about a connecting shaft 41 that faces in the vertical direction Z.

[0066] A building-side connecting portion 36 is provided on the connecting member 33 that connects the multiple building-side blades 32 of the building-side component 30. The building-side connecting portion 36 is connected to the building skeleton A21 so as to be rotatable around a connecting shaft 42 that faces the vertical direction Z.

[0067] The foundation-side blade 22, the building-side blade 32, and the friction material 40 are connected to be relatively rotatable around the shaft 47 of the jack device 45. The friction material 40 is configured to be displaced in the same manner as either one of the multiple foundation-side blades 22 or the building-side blades 32.

[0068] In the wind-resistant device 2A configured in this manner, multiple building-side blades 32 of the building-side component 30 connected to the building A2 side and multiple foundation-side blades 22 of the foundation-side component 20 connected to the foundation A1 side are arranged alternately in the vertical direction Z. Friction materials 40 are arranged between the building-side blades 32 and the foundation-side blades 22. The arrangement of multiple friction materials 40 ensures multiple friction surfaces between the friction materials 40 and the building-side blades 32 and between the friction materials 40 and the foundation-side blades 22. Even if the friction coefficient of each friction material 40 is small, the number of friction surfaces increases, ensuring a large friction force for the entire wind-resistant device 2. Furthermore, by sandwiching these building-side blades 32, foundation-side blades 22, and friction materials 40 with jack devices 45, a pressing force acts in the vertical direction Z, generating a larger friction force. Therefore, even if the friction coefficient of the friction surfaces is small, a large braking force can be obtained.

[0069] In addition, the building side blade 32 and the foundation side blade 22 can be rotated in the vertical direction Z to ensure a friction surface between the friction material 40 and the building side blade 32 and a friction surface between the friction material 40 and the foundation side blade 22.

[0070] The shapes and combinations of the components shown in the above-described embodiment are merely examples, and various modifications can be made based on design requirements, etc., within the scope of the present invention.

[0071] The wind-resistant devices 2, 2A may be installed in the seismic isolation layer 10 installed in the foundation as shown in the above embodiment, or may be installed in an intermediate seismic isolation layer 12 formed in the intermediate layer of a building A4 as shown in FIG. 8. The wind-resistant devices 2, 2A may be installed to connect a seismically isolated building A2 to a non-seismically isolated building A3. The wind-resistant devices 2, 2A may be installed to connect a seismically isolated building A2 to another seismically isolated building A4. The wind-resistant devices 2, 2A may be installed on the roof portion 13. The wind-resistant devices 2, 2A may be installed within a frame 14 as a seismic control layer.

[0072] Furthermore, in the above-described embodiment, the foundation-side blades 22, building-side blades 32, and frictional materials 40 of the wind-resistant devices 2, 2A are arranged side by side in the vertical direction, but the present invention is not limited to this. The wind-resistant devices 2, 2A may be rotated 90° around direction X so that the foundation-side blades 22, building-side blades 32, and frictional materials 40 are arranged side by side in the horizontal direction. In this case, the plate surfaces of the building-side blades 32 and frictional materials 40 face horizontally.

[0073] In the embodiment described above, the loose hole 24 is formed in the foundation-side blade 22 of the wind-resistant device 2, but the present invention is not limited to this. A loose hole may be formed in the building-side blade 32, and the shaft 47 may be immovably connected to the foundation-side blade 22 and the friction material 40. [Explanation of symbols]

[0074] 2,2A Wind-resistant device 22 Second plate material 28 Shaft 32 1st plate material 38 Shaft 40 Friction material 45 Jacking device 46 Jack body 47 Shaft 48 pins X direction Y direction

Claims

1. a plurality of first plate members connected to a structure side of the seismic isolation structure and arranged at intervals in a first direction with their plate surfaces facing the first direction; a plurality of second plate members connected to another structure, arranged alternately with the plurality of first plate members at intervals in the first direction, and arranged with their plate surfaces facing the first direction; a friction material disposed between the first plate member and the second plate member; A wind-resistant device comprising: a jack device that connects the first plate material, the second plate material, and the friction material while allowing the first plate material and the second plate material to be displaced relatively in a direction that intersects the first direction.

2. The jack device is The jack body and a shaft portion connected to the jack body and inserted into a through hole formed in each of the first plate member, the second plate member, and the friction material so as to penetrate in the first direction; a pin connected to the shaft portion, The wind-resistant device according to claim 1, wherein the first plate material, the second plate material, and the friction material are sandwiched between the jack body and the pin.

3. a length of the through hole formed in either the first plate member or the second plate member in the intersecting direction is longer than a diameter of the shaft portion; The wind-resistant device according to claim 2 , wherein the shaft portion is movable in the intersecting direction through the through-hole formed in either the first plate member or the second plate member.

4. The wind-resistant device according to claim 2 , wherein the shaft portion connects the first plate member and the second plate member so as to be rotatable around the first direction.

5. 3. The wind-resistant device according to claim 1, wherein a pressing force generated when the jack device connects the first plate member, the second plate member, and the friction material is changeable.

6. A method for controlling a wind-resistant device according to claim 1 or 2, Normally, no pressing force is generated when the jack device connects the first plate material, the second plate material, and the friction material, A method for controlling a wind-resistant device, in which the jack device applies the pressing force when a storm occurs with a wind speed equal to or greater than a predetermined speed.

7. A method for controlling a wind-resistant device according to claim 1 or 2, Normally, no pressing force is generated when the jack device connects the first plate material, the second plate material, and the friction material, A method for controlling a wind-resistant device, in which the jack device applies the pressing force when an earthquake of a predetermined seismic force or greater occurs.

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