JP4140831B2 - Structure anchor structure, vibration damping device and rolling bearing device used for structure anchor structure - Google Patents

Description

【００９４】
【式１】

【００９５】
【発明の効果】
本発明に係る構造物のアンカー構造によれば、構造物の上部構造と下部構造の縁が切られているので、より高度な制振機能を得ることができる。
【００９６】
また、転がり支承装置又は滑り支承装置と、制振装置を別々の構成要素にして構造物の下部構造と上部構造との間に配設しているので、硬球体が制振用のゴム材に乗り上げるなどの不具合は生じない。また、転がり支承装置又は滑り支承装置と、制振装置を別々の構成要素にして構造物の下部構造と上部構造との間に配設しているので、転がり支承装置と制振装置の設置数、設置位置についての自由度が高く、制振装置を構造物の上部構造の捩じれ振動を抑制するように配設することが可能になるので、より高度な制振性能を得ることができる。
【００９７】
また、嵩張らず、安価で、高性能の振動吸収性能と基礎パッキン材としての機能を兼ね備えているので、特に一般住宅のような比較的小さな構造物に適用できる。
【図面の簡単な説明】
【図１】 本発明の一実施形態に係る構造物のアンカー構造の転がり支承装置を示す縦断面図。
【図２】 本発明の一実施形態に係る構造物のアンカー構造の転がり支承装置の平面図。
【図３】 本発明の一実施形態に係る構造物のアンカー構造の制振装置を示す縦断面図。
【図４】 本発明の一実施形態に係る構造物のアンカー構造の制振装置の平面図。
【図５】 転がり支承装置の施工工程を示す平面図。
【図６】 本発明の一実施形態に係る構造物のアンカー構造の設置例を示す平面図。
【図７】 転がり支承装置の変形例を示す縦断面図。
【図８】 滑り支承装置の第１例を示す縦断面図。
【図９】 第１例の滑り支承装置の滑動状態を示す縦断面図。
【図１０】 滑り支承装置の第２例を示す縦断面図。
【図１１】 第２例の滑り支承装置の滑動状態を示す縦断面図。
【図１２】 従来の住宅の上部構造のアンカー構造を示す図。
【図１３】 基礎パッキン材を示す図。
【符号の説明】
１ 構造物のアンカー構造
２ 硬球体
３ 転がり支承装置
４ 制振部材（高減衰ゴム）
５ 制振装置
６ 住宅の土台
７ 基礎コンクリート（布基礎）
８ 制振層
９ 収容部材
10、11 硬質板（第１硬質板）
13、14 アンカーボルト
15 第１ボルト締結部
16 第２ボルト締結部
17、18 切欠き
21、22 硬質板（第２硬質板）
23 被覆材
24、25 アンカーボルト
26 第１ボルト締結部
27 第２ボルト締結部
28、29 切欠き[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anchor structure for a structure that is mounted between an upper structure and a lower structure of a structure and fixes the upper structure on the lower structure. The present invention relates to an anchor structure of a structure that also functions as a basic packing material and can obtain high-performance vibration absorption performance at low cost.
[0002]
[Prior art]
A lightweight structure such as a house is constructed on a foundation concrete 101 which is generally called a cloth foundation. When fixing the foundation 103 (upper structure) of the building (structure) on the basic concrete 101 (lower structure), for example, as shown in FIG. 12, the lower part of the L-shaped anchor bolt 102 is the basic concrete. The upper part of the anchor bolt 102 was passed through the base 103 and the portion protruding from the upper surface of the base 103 was fixed with a washer 104 and a nut 105.
[0003]
However, simply by fixing the base 103 on the foundation 101, traffic vibration caused by the passage of a large vehicle is transmitted as it is from the foundation concrete 101 to the foundation 103. Therefore, as shown in FIG. There was a thing that relieved traffic vibration by sandwiching a rubber plate 100 between them. However, even in this case, the anchor bolt 102 firmly connects the foundation 103 and the foundation concrete 101, and the vibration is transmitted as it is from the foundation concrete 101 to the foundation 103 via the anchor bolt 102. A sufficient seismic isolation effect was not obtained.
[0004]
Such a rubber plate 100 has a function as a basic packing material for ventilation of a foundation portion of a house. That is, by arranging a plurality of rubber plates 100 with a predetermined interval between the foundation concrete 101 and the base 103 of the house, the gap between the foundation 103 and the foundation concrete 101 is removed from the foundation concrete 101. Internal ventilation can be performed, and the air flow in the foundation concrete 101 is improved. Further, by cutting the edge between the foundation concrete 101 and the foundation 103, there is an effect that the moisture absorbed by the foundation concrete 101 is not transmitted to the foundation 103.
[0005]
The following patent document 1 is known as a publicly known document showing a general technical level of this type of basic packing material.
[0006]
In addition, as a basic packing material that also has a vibration damping function that absorbs vibrations caused by large automobiles such as dump trucks, traffic vibrations caused by the passage of railway vehicles, and vibrations caused by earthquakes, it is for restoration with a circular hole between upper and lower hard plates The following Patent Document 2 proposes a rolling support structure in which a rubber material is disposed and a hard sphere is rotatably disposed in a hole in the rubber material.
[0007]
[Patent Document 1]
JP 2001-355350 A
[Patent Document 2]
JP 2000-110403 A
[0008]
[Problems to be solved by the invention]
The above-described basic packing material described in Patent Document 1 is simply a rubber material sandwiched between the upper structure and the lower structure of a structure, and vibrations caused by large automobiles such as earthquakes and dump trucks and the passage of railway vehicles. The vibration control function that absorbs the traffic vibration caused by is not sufficient.
[0009]
Moreover, although the basic packing material described in Patent Document 2 can be expected to have a certain vibration damping effect, it is not guaranteed that the hard sphere is located at the center of the hole of the rubber material due to the structure. . For this reason, there is a possibility that the hard sphere is disposed in contact with the inner peripheral surface of the hole of the rubber material. In such a case, the hard sphere will immediately run on the rubber material during vibration. According to the knowledge of the present inventors, when the hard sphere rides on the rubber material, the rubber material may be damaged at the position where the hard sphere rides, so that a sufficient damping effect cannot be obtained.
[0010]
In addition, seismic isolation devices that combine laminated rubber and oil dampers are well known, but laminated rubber and oil dampers are large, increasing installation costs and installation space, and are not suitable for relatively small structures such as ordinary houses. It is an economy and not very popular.
[0011]
Therefore, an object of the present invention is to provide an anchor structure of a structure that is not bulky, inexpensive, and has both a vibration absorbing performance and a function as a basic packing material.
[0012]
[Means for Solving the Problems]
In the anchor structure of a structure according to the present invention, a plurality of rolling support devices arranged with hard spheres positioned at the center of upper and lower first hard plates are supported so as to support the vertical load of the upper structure of the structure. In addition, a plurality of vibration damping devices, which are distributed between the lower structure and the upper structure of the structure and have second hard plates attached to the upper and lower end surfaces of the high-damping rubber, are provided as the upper structure of the structure. It is characterized by being distributed between the lower structure and the upper structure of the structure so as to suppress the torsional vibration.
[0013]
The anchor structure of this structure has a higher level of vibration control function than the anchor structure described in Patent Document 1 described above because the upper structure and the lower structure of the structure are cut off. Can do. In addition, since the rolling support device and the vibration damping device are provided as separate components and disposed between the lower structure and the upper structure of the structure, the hard sphere is different from the anchor structure described in Patent Document 2. Troubles such as riding on rubber material for vibration control do not occur. In addition, since the rolling support device is disposed in a state where the hard sphere is positioned at the central portion of the upper and lower first hard plates, a wide rolling width of the hard sphere can be secured. In addition, since the rolling bearing device and the vibration damping device are arranged as separate components and arranged between the lower structure and the upper structure of the structure, the number of rolling bearing devices and vibration damping devices installed, and the installation position Since the degree of freedom is high and the vibration damping device can be arranged so as to suppress the torsional vibration of the superstructure of the structure, higher vibration damping performance can be obtained.
[0014]
As described above, according to the anchor structure of the structure according to the present invention, it is not bulky, inexpensive, and has both a vibration absorbing performance and a function as a basic packing material. Applicable to.
[0015]
A plurality of rolling support devices may be distributed and arranged so as to support the vertical load of the upper structure of the structure substantially evenly, and it is preferable that the vibration damping device is not subjected to the vertical load.
[0016]
Further, instead of the rolling bearing device, a plurality of sliding bearing devices may be distributed and arranged between the lower structure and the upper structure of the structure so as to support the vertical load of the upper structure of the structure. Good. In this case, for example, a sliding support device in which a sliding body is disposed between the upper and lower third hard plates can be employed.
[0017]
In addition, the vibration damping device is specifically arranged so that the eccentricity of the vibration damping layer between the upper structure and the lower structure of the structure is within 3%, thereby twisting the upper structure of the structure. Vibration can be effectively suppressed.
[0018]
The shear modulus of the high damping rubber is 100 N / cm in an amplitude region of ± 25% or less with respect to the height of the high damping rubber. ² 40 N / cm in the amplitude region of ± 150% or more with respect to the height of the high damping rubber. ² The following is desirable. By using an elastic material with such characteristics, the shearing deformation of high-damping rubber is suppressed against minute vibrations such as wind and traffic vibrations, and a large acceleration (inertial force) with a large acceleration like an earthquake occurs. With respect to shaking, the high damping rubber undergoes a large shear deformation. That is, the high damping rubber functions as a trigger for wind and traffic vibration.
[0019]
Further, it is desirable that the loss coefficient tanδ of the elastic material used for the high damping rubber is 0.3 or more. Thereby, a high-performance vibration absorption performance can be exhibited.
[0020]
In addition, the high damping rubber contains silica in a ratio of 105 parts by weight or more and 150 parts by weight or less with respect to 100 parts by weight of the base rubber, and a loss coefficient tanδ is 0 by blending a resin that improves damping performance. .3 or more, and a limit deformation of at least four times the height may be adopted. In this case, the base rubber is natural rubber and at least bears as a resin that improves the damping performance. B Indene resin is preferably blended.
[0021]
In addition, when an experiment was conducted at a frequency of 2 Hz after deterioration due to accelerated heat aging equivalent to 60 years, an elastic material having a change rate of shear modulus G and / or loss coefficient tanδ within 30% was highly attenuated. By using the rubber, the performance required for the vibration damping device can be ensured for a long time.
[0022]
By setting the hardness of the first hard plate or the third hard plate to HRC20 or more, the rolling surface of the hard sphere or the sliding surface of the sliding body can be suppressed from being recessed, and a negative gradient is generated in the hysteresis loop. Can be suppressed, and an effective damping function can be provided. The first hard plate or the third hard plate can be secured at a low cost by HRC 20 or more by work hardening by cold rolling. In addition, since the first hard plate or the third hard plate work hardened by cold rolling does not cause distortion in the first hard plate or the third hard plate as compared with the case where the hardness is improved by heat treatment. A flatter rolling surface (sliding surface) is obtained, and smoother rolling of the hard sphere can be ensured.
[0023]
Further, by setting the hardness of the hard sphere to HRC20 or more, it is possible to suppress the depression of the hard sphere, and to suppress the generation of a negative gradient in the hysteresis loop and to provide an effective vibration damping function. it can. The hard sphere can be secured at a low cost with a hardness of HRC20 or higher and the required sphericity by work hardening by rolling.
[0024]
In addition, the first hard plate includes the rolling surface of the hard sphere including a circle centered on a predetermined position where the hard sphere is positioned and having a radius that is twice the diameter of the hard sphere. As a result, a longer period can be achieved. It is preferable to provide a stopper that regulates the shear deformation amount of the vibration damping device below the fracture limit or yield limit of the high-damping rubber. With this stopper, the high-damping rubber can be shear-deformed within the rupture limit or yield limit of the rubber, so that the high-damping rubber can be prevented from breaking during an earthquake. In general, the breaking limit or the yield limit in the shear direction of rubber is set to a shear deformation amount about four times the height of the rubber. It is preferable to provide a stopper that regulates the height of the damping rubber to about four times (or four times the height of the high damping rubber and the amount of shear deformation considering the safety factor).
[0025]
Further, the rolling support device may be inscribed in a cylindrical body made of a soft elastic body attached between the upper and lower first hard plates so that the hard sphere is positioned at the center of the upper and lower first hard plates. It is desirable that such a soft elastic body does not hinder the rolling of the hard sphere as much as possible. For example, it may be easily destroyed as the hard sphere rolls. As an elastic material used for the soft elastic body, for example, a synthetic rubber foam such as ethylene propylene rubber (EPDM) or chloroprene rubber (CR), a soft urethane foam, a polystyrene foam, or a polyethylene foam can be employed.
[0026]
The rolling support device may be positioned by adhering the hard spheres to the central portions of the upper and lower first hard plates.
[0027]
Further, the upper and lower first hard plates of the rolling support device or the upper and lower third hard plates of the sliding support device and the upper and lower second hard plates of the vibration control device are made of a hard sphere, a sliding body or a high damping rubber. Bolt fastening notches for bolts that can be attached / detached along the straight line connecting the bolt fastening parts on both sides, with bolt fastening parts on both sides of the attached central part. And the second bolt fastening portion on the opposite side has a notch for attaching / detaching a bolt along a direction substantially perpendicular to the straight line. This facilitates installation at the time of installation and removal and installation work after completion.
[0028]
In this case, it is desirable that the notch of the second bolt fastening portion is formed along an arc whose center is a predetermined bolt fastening position of the first bolt fastening portion and whose radius is a predetermined bolt pitch.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an anchor structure of a structure according to an embodiment of the present invention will be described with reference to the drawings.
[0030]
The anchor structure 1 of this structure includes a plurality of rolling support devices 3 using the hard spheres 2 shown in FIGS. 1 and 2 and a plurality of vibration damping members 4 made of high damping rubber shown in FIGS. 3 and 4. The vibration damping device 5 is disposed in a vibration damping layer 8 between the base 6 (upper structure of the structure) and the foundation concrete 7 (lower structure) of the house, and absorbs vibration during an earthquake. It has a vibration function and a function as a basic packing material.
[0031]
As shown in FIG. 1, the rolling support device 3 includes a hard sphere 2, a cylindrical housing member 9, and hard plates 10 and 11 that sandwich the hard sphere 2 and the housing member 9 in the vertical direction. And the upper and lower hard plates 10 and 11 are bonded to the lower end of the housing member 9, respectively. The housing member 9 may be one in which the lower end is bonded to the lower hard plate 11 without bonding the upper end.
[0032]
The hard sphere 2 is a sphere having a required hardness and sphericity of 40 mm in diameter, and is manufactured by rolling a steel material roughly processed into a substantially spherical shape. In the rolling process, a steel material roughly processed into a spherical shape is sandwiched between polishing plates and rolled between the polishing plates to remove the distortion of the surface of the steel material and shape it into a spherical shape. The hard sphere 2 is hardened by work hardening caused by rolling. According to this rolling process, using a cheap steel material such as S15C, it is possible to obtain a hard sphere having a hardness of HRC 20 or higher and a high degree of sphericity, and reducing the cost of parts of the hard sphere 2. Can do.
[0033]
The housing member 9 is made of, for example, a synthetic rubber foam excellent in weather resistance such as ethylene propylene rubber (EPDM) or chloroprene rubber (CR), or a soft elastic material such as soft urethane foam, polystyrene foam or polyethylene foam. It is a sponge-like cylindrical member. The inner diameter of the housing member 9 is the same as the diameter of the hard sphere 2 or slightly smaller than the diameter of the hard sphere 2. In addition, the height of the housing member 9 is substantially the same as the height of the hard sphere 2.
[0034]
As shown in FIG. 2, the hard plates 10 and 11 are 5 mm-thick, substantially rhombic plate-like members having required hardness and flatness, and the housing member 9 is bonded to the center portion so that the hard sphere 2 is centered. Is positioned. The hard plates 10 and 11 are provided with rolling surfaces including a circle whose radius is a distance twice as large as the diameter of the hard sphere 2 with the position where the hard sphere 2 is positioned as the center.
[0035]
The hard plates 10 and 11 are manufactured by subjecting a plate material to cold rolling. In the cold rolling process, a plate-shaped material is drawn while being sandwiched between rolling rollers, and since no heat treatment is performed, distortion does not occur, thereby ensuring required flatness. Moreover, required hardness can be obtained by work hardening. According to this cold rolling process, the hard plates 10 and 11 having HRC of 20 or more, more preferably HRC of 25 or more can be obtained using a steel material such as SUS304.
[0036]
The housing member 9 is bonded to the center portion to position the hard sphere 2 in the center. The hard plates 10 and 11 have a rolling surface that is larger than a circle whose radius is a distance twice as large as the diameter (40 mm) of the hard sphere 2 (80 mm) centering on the position where the hard sphere 2 is positioned. The rolling support device 3 is configured such that the hard sphere 2 can roll a distance that is at least twice the diameter around the position where the hard sphere 2 is positioned.
[0037]
Bolt fastening portions 15 and 16 for fastening anchor bolts 13 and 14 are provided on both sides of the upper and lower hard plates 10 and 11, respectively. The first bolt fastening part 15 on one side is formed with a notch 17 along a straight line L connecting the bolt fastening parts 15 and 16 on both sides, and the bolt fastening part on both sides is formed on the second bolt fastening part 16 on the opposite side. A notch 18 is formed along the direction orthogonal to the straight line connecting 15 and 16. Specifically, the notch 18 of the second bolt fastening portion 16 is centered on a predetermined fastening position (for example, a design bolt fastening position O) of the first bolt fastening portion 15 and has a predetermined bolt pitch (for example, on design). Are formed along an arc C having a radius of bolt pitch P).
[0038]
The width of the notches 17 and 18 of each bolt fastening portion 15 and 16 is slightly larger than the diameter of the anchor bolts 13 and 14, and the anchor bolts 13 and 14 are attached and detached along the notches 17 and 18. Be able to. Further, the notches 17 and 18 are formed deeper than the designed bolt fastening position so as to allow an error during construction.
[0039]
When constructing the rolling bearing device 3, as shown in FIG. 5, the anchor bolt 13 on one side is attached to the first bolt fastening portion 15 along the notches 17 and 18, and is indicated by a two-dot chain line in the figure. As described above, the rolling support device 3 is rotated, and the opposite anchor bolt 14 is attached to the second bolt fastening portion 16 along the notch 17. Then, as shown in FIG. 1, the rolling support device 3 is fixed with a nut 19.
[0040]
In the anchor structure 1 of this structure, as shown in FIG. 6, each rolling support device is provided in a damping layer 8 between a base 6 (upper structure of the structure) and a foundation concrete 7 (lower structure). A plurality of rolling support devices 3 are arranged on the foundation concrete 7 so that 3 supports the vertical load of the superstructure substantially evenly. The rolling support device 3 can support a load of about 1.5 tonf (about 15 kN) as a single unit.
[0041]
In this rolling support device 3, the hard sphere 2 is supported by point contact with the hard plates 10 and 11, but the hard plates 10 and 11 have the required hardness and flatness, and the hard sphere 2 is also required. Therefore, even when a vertical compressive load is applied between the upper and lower hard plates 10 and 11, the hard sphere 2 and the hard plates 10 and 11 are hardly dented. For this reason, when the upper and lower hard plates 10 and 11 vibrate in the shearing direction due to an earthquake, the hard sphere 2 receives frictional force from the upper and lower hard plates 10 and 11 and is accommodated between the upper and lower hard plates 10 and 11. The member 9 rolls without slipping while deforming or breaking. At this time, since the force applied to the hard sphere 2 is large, the housing member 9 is easily deformed or damaged, and does not become a great resistance against the rolling of the hard sphere 2 during an earthquake.
[0042]
On the other hand, as shown in FIGS. 3 and 4, the vibration damping device 5 includes a cylindrical vibration damping member 4 made of high damping rubber and a hard plate 21, 22 sandwiching the vibration damping member 4 vertically. And a rubber covering material 23, hard plates 21 and 22 are vulcanized and bonded to the upper and lower ends of the vibration damping member 4, respectively, and the outer peripheral surface of the vibration damping member 4 is covered with the rubber covering material 23 It is.
[0043]
The damping member 4 is a high damping rubber having a height of 40 mm, and the upper and lower hard plates 23 are steel plate plates having a thickness of about 5 mm. The damping member 4 has a hole in the center for manufacturing reasons, but the damping device 4 may be a completely solid member.
[0044]
Specifically, the vibration damping member 4 has a shear elastic modulus of 100 N / cm in an amplitude region of ± 25% or less with respect to the height of the vibration damping member 4. ² 40 N / cm in the amplitude region of ± 150% or more with respect to the height of the high damping rubber. ² The following is desirable. By using an elastic material having such characteristics for the damping member 4, shear deformation of the damping member 4 can be suppressed against minute vibrations such as wind and traffic vibrations, and As described above, the vibration damping member 4 undergoes a large shear deformation against a large vibration accompanied by a large acceleration (inertial force). That is, the vibration damping device 5 itself has a function as a trigger for wind and traffic vibration.
[0045]
Further, it is desirable that the highly damped elastic material used in the vibration damping device 5 has a loss coefficient tanδ of 0.3 or more, more preferably 0.5 or more. Here, when the dynamic characteristics of the rubber material are expressed by complex elastic modulus, the real part is called storage elastic modulus G1, the imaginary part is called loss elastic modulus G2, and the ratio of storage elastic modulus G1 and loss elastic modulus G2 is the loss coefficient. It is called tan δ (loss coefficient tan δ = storage elastic modulus G1 / loss elastic modulus G2).
[0046]
The loss coefficient tan δ is one of evaluation indexes for damping characteristics of the damping material. In other words, if the vibration damping material is damped in the vibration response system, its stress / strain diagram (or load / displacement diagram) draws a hysteresis curve, but the loss factor tanδ is 1 cycle. In an amount proportional to the ratio of the energy consumed to the maximum energy stored, corresponding to a value approximately twice the equivalent damping constant. Therefore, the larger the loss coefficient tan δ, the higher the damping property.
[0047]
In addition, when the vibration damping member 4 was deteriorated due to accelerated heat aging for 60 years and then tested at a frequency of 2 Hz, the rate of change in the shear modulus G and / or loss factor tan δ was within 30%. It is good to use the rubber material which is. That is, since the useful life of a general house is about 50 to 60 years, the performance required for the vibration damping device 5 can be ensured at least during that period. Table 1 below shows a suitable blending example of the rubber material used for the vibration damping member 4. In Table 1, phr is a symbol used to indicate the mass of the compounding agent in terms of parts relative to 100 parts of rubber.
[0048]
Since a large load is not applied to the hard plates 21 and 22 used in the vibration control device 5, a normal steel plate without distortion can be used. In this embodiment, a SUS304 steel plate is used.
[0049]
As shown in FIG. 4, the hard plates 21 and 22 are substantially rhombic plate-like members similar to the hard plates 10 and 11 (see FIG. 2) of the rolling support device 3. Is glued. Bolt fastening portions 26 and 27 for fastening anchor bolts 24 and 25 are provided on both sides of the upper and lower hard plates 21 and 22, similarly to the hard plates 10 and 11 of the rolling support device 3. The first bolt fastening portion 26 on one side is formed with a notch 28 along a straight line L connecting the bolt fastening portions 26 and 27 on both sides, and the bolt fastening portion on both sides is formed on the second bolt fastening portion 27 on the opposite side. A notch 29 is formed along the direction orthogonal to the straight line connecting 26 and 27. Specifically, the notch 29 of the second bolt fastening portion 27 is centered on a predetermined fastening position (for example, a design bolt fastening position O) of the first bolt fastening portion 26, and a predetermined bolt pitch (for example, on design). Are formed along an arc C having a radius of bolt pitch P).
[0050]
The width of the notches 28 and 29 of each bolt fastening portion 26 and 27 is slightly larger than the diameter of the anchor bolts 24 and 25, and the anchor bolts 24 and 25 are attached and detached along the notches 28 and 29. Be able to. Further, the notches 28 and 29 are formed deeper than the designed bolt fastening position so as to allow an error during construction.
[0051]
When constructing the vibration damping device 5, as in the rolling support device 3 shown in FIG. 5, the first bolt fastening portion 26 is attached to one anchor bolt 24 along the notch 28, and the vibration damping device 5 is attached. The opposite anchor bolt 25 is attached to the second bolt fastening portion 27 along the notch 29 by turning. Then, as shown in FIG. 3, the damping device 5 is fixed with a nut 30.
[0052]
Further, as a material of the covering material 23 that covers the outer peripheral surface of the vibration damping member 4, a weather-resistant material such as butyl rubber (IIR) or ethylene propylene rubber (EPDM) may be used.
[0053]
The vibration damping device 5 is disposed so as to suppress the torsional vibration of the superstructure of the structure. Specifically, the eccentricity ratio of the damping layer between the upper structure and the lower structure of the structure is arranged to be within 3%. In addition, the eccentricity of the damping layer between the upper structure and the lower structure of the structure is calculated by the following formula 1. Moreover, it is good to provide the stopper (illustration omitted) which regulates the shear deformation amount of the damping device 4 to 4 times or less of the height of the damping member 4. FIG. By this stopper, the damping member 4 can be sheared and deformed within the breaking limit or yield limit of rubber, so that the damping device 4 can be prevented from breaking during an earthquake. In order to alleviate the impact at the time of deformation regulation, it is desirable that the stopper employs an elastic buffer member.
[0054]
FIG. 6 shows an installation example in which the rolling support device 3 and the vibration damping device 5 of the anchor structure 1 of this structure are installed on the basic concrete 7 as the lower structure of the house.
[0055]
As shown in FIG. 6, the anchor structure 1 of this structure includes a plurality of rolling support devices in a vibration control layer 8 between a base 6 (upper structure of the structure) and a foundation concrete 7 (lower structure). 3 is arranged so as to support the vertical load of the upper structure of the house substantially evenly, and a plurality of vibration control devices 5 are arranged so as to suppress torsional vibration of the upper structure of the house. The vertical load of the upper structure of the house is supported by the rolling support device 3, and the vertical load is hardly applied to the vibration control device 5.
[0056]
Since the hard sphere 2 of the rolling support device 3 is positioned at the center of the hard plate by the housing member 9, the position of the hard sphere 2 does not shift during transportation or construction. After construction, since a force of about 15 KN is applied in the vertical direction between the hard sphere 2 and the hard plates 10 and 11, the position of the hard sphere 2 is shifted without slipping between the hard plates 10 and 11. There is no. During an earthquake, the hard sphere 2 rolls without sliding between the hard plates 10 and 11 in accordance with the vibration in the shear direction of the upper and lower hard plates 10 and 11. At this time, since the upper and lower hard plates 10 and 11 and the hard sphere 2 each have the required hardness, the amount of deformation at the contact surface is small, and the hard sphere 2 rolls smoothly. For this reason, a negative gradient does not occur in the hysteresis loop.
[0057]
In the event of an earthquake, the vibration damping device 5 absorbs vibration in the shearing direction while the vibration damping member 4 is deformed in the shearing direction along with vibrations in the shearing direction of the upper and lower hard plates 21 and 22 and twists the upper structure. Vibration can also be suppressed.
[0058]
In the anchor structure 1 of this structure, since the hard sphere 2 rolls smoothly, a negative gradient does not occur in the hysteresis loop, and the vibration damping device 5 absorbs vibration in the shear direction and twists the upper structure. Since vibration can also be suppressed, a high level of vibration absorption performance can be exhibited.
[0059]
Thus, the anchor structure 1 of this structure has a vibration absorbing function that absorbs seismic motion and the like, and the rolling bearing device 3 and the vibration damping device 5 are considerably smaller and less expensive than laminated rubber and oil dampers, respectively. It can be installed at extremely low cost. Moreover, since the vertical load of the superstructure is distributed and supported by a plurality of rolling support devices distributed on the foundation concrete, a large concentrated load is not applied to the foundation or foundation concrete of the house. For this reason, it is not necessary to reinforce the foundation of the house or the foundation concrete.
[0060]
Moreover, the anchor structure of this structure can make the height of the rolling support device 3 and the vibration control device 5 about 50 mm, respectively, and is not bulky, as a foundation packing material that improves the air permeability of the foundation concrete portion of the house. It can be made to have both functions.
[0061]
Moreover, since the anchor structure 1 of this structure is disposed between the foundation concrete 7 and the base 6 of the house with the rolling bearing device 3 and the vibration damping device 5 as separate components, Patent Document 2 discloses Even if compared with what is described, the number of installations and installation positions of the rolling support device 3 and the vibration control device 5 are high, and the rolling support device 3 and the vibration control device 5 are adapted to each function as described above. Can be installed in different positions. As a result, the installation cost can be reduced, and high vibration control performance can be obtained.
[0062]
Moreover, since the anchor structure 1 of this structure is disposed between the foundation concrete 7 and the base 6 of the house with the rolling bearing device 3 and the vibration damping device 5 as separate components, Patent Document 2 discloses As described, there is no problem that the hard sphere 2 rides on the rubber material for vibration control.
[0063]
In addition, the rolling support device 3 is disposed in a state where the hard sphere 2 is positioned in the central portion of the upper and lower hard plates 10 and 11 by the housing member 9, and since there is no vibration damping member 4 around it, the hard bearing device 3 is hard. A wide rolling width of the sphere 2 can be secured. Thereby, a more advanced vibration absorption performance can be obtained.
[0064]
Further, the vibration absorbing performance in the shearing direction of the vibration damping device 5 is largely caused by the shear cross-sectional area of the vibration damping member 4 if the material of the vibration damping member 4 is the same. Since this damping device 5 does not have a hole for accommodating the hard sphere 2 in the damping member 4, the vibration absorbing performance is better than that described in Patent Document 2 when compared with those having the same outer diameter. The same vibration absorbing performance can be exhibited with a smaller number. In addition, since the vibration damping member 4 has a cylindrical shape, the vibration damping device 5 exhibits uniform vibration absorption performance with respect to horizontal shaking.
[0065]
Hereinafter, examples of the high damping rubber used in the vibration damping device will be described.
[0066]
The high damping rubber used in the vibration damping device has a loss coefficient tan δ of 0.3 or more and a limit deformation (horizontal deformation amount that causes a reduction in the horizontal reaction force of the high damping rubber) is 4 times the height of the high damping rubber. It is preferable to have a property that doubles or more. That is, it is preferable to use a rubber composition having a damping performance within the hardness and a deformation performance at the same time as the high damping rubber used in the vibration damping device.
[0067]
In order to produce a high-damping rubber having such properties, the high-damping rubber contains silica in an amount of 105 to 150 parts by weight with respect to 100 parts by weight of the base rubber, and improves the damping performance. It is good to mix | blend resin to make. Moreover, the tensile limit strength of high damping rubber is 0.5 N / mm ² Preferably, the characteristics of the horizontal deformation-horizontal reaction force of the high damping rubber are preferably in good agreement with the bilinear loop. Further, it is preferable that the high damping rubber has small strain dependency, repetition dependency, temperature dependency, and speed dependency.
[0068]
As the base rubber, natural rubber or synthetic rubber may be used. As the synthetic rubber, polyisoprene rubber, polybutadiene rubber, butyl rubber, styrene butadiene rubber, ethylene propylene rubber, acrylonitrile butadiene rubber and the like can be used. May be used, or two or more kinds of mixtures may be used.
[0069]
When silica is blended with the base rubber, it is possible to obtain an excellent high damping property and a low temperature dependency of the elastic modulus. For this reason, it is preferable to mix | blend a silica in the ratio of 105 weight part or more with respect to 100 weight part of base rubbers. However, if the blending amount of silica is too large relative to the amount of the base rubber, processability is deteriorated in kneading or extrusion, and limit deformation is reduced. Such a problem caused by silica blending can be alleviated to some extent by blending a silane compound or blending silica whose surface has been treated with a silane compound. Further, in order to obtain a higher attenuation performance, a resin that improves the attenuation performance is blended.
[0070]
Silane compounds used for compounding or surface treatment include methyltrimethoxysilane, methyltriethoxysilane, methyldiethoxysilane, dimethyldimethoxysilane, dimethyldiethoxysilane, dimethylethoxysilane, trimethylmethoxysilane, trimethylethoxysilane, isobutyltrimethoxy Silane, n-decyltrimethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, diphenyltrimethoxysilane, diphenyldiethoxysilane, diphenyldimethoxysilane, triphenylethoxysilane, hexyltrimethoxysilane, octadecylmethyldimethoxysilane, octadecyltri Ethoxysilane, octadecyltrimethoxysilane, tridecafluorooctyltrimethoxysilane, trifluoropropi Trimethoxysilane, heptadecafluorodecylmethyldimethoxysilane, heptadecafluorodecyltrimethoxysilane, cyclohexylmethyldimethoxysilane, hexamethyldisilazane, octamethylcyclotetrasilazane, nonamethyltrisilazane, methyltrichlorosilane, methyldichlorosilane, dimethyl Dichlorosilane, dimethylchlorosilane, dimethylbutylchlorosilane, dimethyloctadecylchlorosilane, trimethylchlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, triphenylchlorosilane, tri-n-propylchlorosilane, methyldiphenylchlorosilane, methylphenyldichlorosilane, n-butyldimethylchlorosilane , Tert-butyldimethylchlorosilane, tert-butyl Diphenylchlorosilane, chloromethyldimethylchlorosilane, chloromethyltrimethylsilane, 3-chloropropylmethyldimethoxysilane, 3-chloropropylmethyldiethoxysilane, 3-chloropropyltrimethoxysilane, 3-chloropropyltris (trimethylsiloxy) silane, di Phenyl silane diol, trichloroethyl silane, heptadecafluorodecylmethyldichlorosilane, heptadecafluorodecyltrichlorosilane, heptadecafluorodecylmethyldichlorosilane, octadecyldimethylchlorosilane, octadecylmethyldichlorosilane, octadecyltrichlorosilane, tri-n-butylchlorosilane , Tridecafluorooctyltrichlorosilane, triethylchlorosilane and the like. The silane compound is preferably blended in the range of 5 to 40 phr. The silica surface treatment method may be performed, for example, by adding the silane compound to silica, heating and stirring at 100 to 200 ° C., and causing the silica and the silane compound to undergo a condensation reaction.
[0071]
Resins to be blended to improve the damping performance are described as tackifiers in Table 1. For example, coumarone / indene resins, aromatic resins, aromatic / aliphatic mixed resins, rosin Resin, cyclopentadiene resin and the like. Among these, it is preferable to use coumarone-indene resin. In addition, these resins have a property of changing the mechanical properties of rubber against temperature, strain, and repeated deformation. For this reason, it is preferable to select and use one or a plurality of types of resins so that the dependence on temperature and the like is reduced. The compounding amount of the tackifier is preferably about 5 to 50 parts by weight with respect to 100 parts by weight of the base rubber.
[0072]
In addition, it is preferable that the high-damping rubber has a secular change rate of each mechanical characteristic value after 60 years within ± 30%, more preferably so that the deterioration of performance over time does not impair the function of the vibration damping device. Is preferably within 20%. The deterioration of high-damping rubber over time is evaluated by the rate of change in shear modulus G and / or loss coefficient tanδ when experimented at a frequency of 2 Hz after deterioration due to accelerated heat aging equivalent to 60 years. Good.
[0073]
Examples of the antioxidant include imidazoles such as 2-mercaptobenzimidazole; phenyl-α-naphthylamine, N, N′-di-β-naphthyl-p-phenylenediamine, N-phenyl-N′-isopropyl-p. -Amines such as phenylenediamine; phenols such as di-t-butyl-p-cresol and styrenated phenol. The blending amount of the antioxidant is preferably about 1.5 to 5 parts by weight with respect to 100 parts by weight of the base rubber.
[0074]
In addition to the above, such rubber compositions include, for example, vulcanizing agents, vulcanization accelerators, vulcanization acceleration aids, vulcanization retarders, reinforcing agents other than silica, fillers, softeners, plasticizers, etc. Various additives may be added.
[0075]
Among these, examples of the vulcanizing agent include sulfur, organic sulfur-containing compounds, and organic peroxides. Among these, examples of the organic sulfur-containing compound include N, N′-dithiobismorpholine. Examples of the organic peroxide include benzoyl peroxide and dicumyl peroxide.
[0076]
Examples of the vulcanization accelerator include thiuram vulcanization accelerators such as tetramethylthiuram disulfide and tetramethylthiuram monosulfide; zinc dibutyldithiocarbamate, zinc diethyldithiocarbamate, sodium dimethyldithiocarbamate, Dithiocarbamic acids such as tellurium diethyldithiocarbamate; thiazoles such as 2-mercaptobenzothiazole and N-cyclohexyl-2-benzothiazolesulfenamide; thioureas such as trimethylthiourea and N, N′-diethylthiourea Organic promoters, or inorganic promoters such as slaked lime, magnesium oxide, titanium oxide, and resurge (PbO) can be used.
[0077]
Examples of the vulcanization acceleration aid include fatty acids such as stearic acid, oleic acid, and cottonseed fatty acid, and metal oxides such as zinc white.
[0078]
Examples of the vulcanization retarder include aromatic organic acids such as salicylic acid, phthalic anhydride, and benzoic acid; N-nitrosodiphenylamine, N-nitroso-2,2,4-trimethyl-1,2-dihydroquinone, N- And nitroso compounds such as nitrosophenyl-β-naphthylamine.
[0079]
The total amount of the vulcanizing agent, vulcanization accelerator, vulcanization acceleration aid and vulcanization retarder is preferably about 2 to 10 parts by weight with respect to 100 parts by weight of the base rubber.
[0080]
Carbon black is mainly used as a reinforcing agent other than silica, inorganic reinforcing agents such as silicate-based white carbon, zinc white, surface-treated precipitated calcium carbonate, magnesium carbonate, talc, clay, or coumarone. -Organic reinforcing agents such as indene resin, phenol resin, and high styrene resin (styrene-butadiene copolymer having a high styrene content) can also be used.
[0081]
Examples of the filler include calcium carbonate, clay, barium sulfate, and diatomaceous earth. The blending amount of the reinforcing agent and / or filler other than silica is preferably about 5 to 50 parts by weight with respect to 100 parts by weight of the base rubber.
[0082]
Examples of the softener include vegetable oil, mineral oil, and synthetic softeners such as fatty acids (stearic acid, lauric acid, etc.), cottonseed oil, tall oil, asphalt substances, and paraffin wax. The blending amount of the softening agent is preferably about 10 to 100 parts by weight with respect to 100 parts by weight of the base rubber.
[0083]
Examples of the plasticizer include various plasticizers such as dibutyl phthalate, dioctyl phthalate, and tricresyl phosphate. As for the compounding quantity of a plasticizer, about 5-20 weight part is preferable with respect to 100 weight part of base rubber.
[0084]
In general, as a means for making rubber exhibit high damping performance, (1) a base rubber having high damping performance (high styrene SBR, butyl rubber (IIR), polynorbornene, etc.) is used, or (2) It is preferable to use a tackifier (chroman indene resin, dicyclopentadiene resin, etc.) or (3) a filler such as carbon black, silica, etc., but the vibration damping device used for the anchor structure according to the present invention It is desirable to maintain stable performance over a wide use temperature range.
[0085]
For this reason, natural rubber having mechanical properties that can withstand large deformations and low temperature dependence is used as a base rubber, and a larger amount of silica than this is blended into this (105 parts by weight with respect to 100 parts by weight of natural rubber). And blending at a ratio of 150 parts by weight or less to give a damping performance, and using a silane compound to improve the processability due to the large amount of silica blended, in addition, the tackifier is processability and temperature dependence It is preferable to use a high-damping rubber that is selectively blended in consideration of the above (Table 1). As a tackifier, it can be used to adjust processability and temperature dependence. B Indene resin is excellent and bears in consideration of processability and temperature dependence. B Indene resin may be combined with other resins. For example, bear B Indene resin (trade name: Escron G90, manufactured by Nippon Steel Chemical Co., Ltd.) and dicyclopentadiene resin (trade name: ECR260, manufactured by Tonex Co., Ltd.) may be used in combination.
[0086]
As mentioned above, although the anchor structure of the structure based on one Embodiment of this invention was demonstrated, this invention is not limited above.
[0087]
For example, with respect to the rolling support device, the positioning means for the hard sphere is not limited to the above. For example, by forming a depression having a bowl-shaped curved shape in the center portion of the lower hard plate, The hard sphere may be positioned at the center of the hard plate by the above action. Further, as shown in FIG. 7, the rolling support device 3 ′ has an inner diameter of the upper end 32 and the lower end 33 of the housing member 31 for positioning the hard sphere 2 larger than the diameter of the hard sphere 2, and The central portion in the height direction of the inner peripheral surface may be protruded toward the inner diameter side, and the top 34 may be brought into contact with the hard sphere 2 to position the hard sphere 2 in the center of the housing member 31. In this case, the rolling of the hard sphere 2 becomes smoother because the housing member 31 is not completely buffered by the hard sphere 2 in a small amplitude range during an earthquake. In FIG. 7, the same reference numerals as those in FIG.
[0088]
Although not shown, the rolling support device may be positioned by bonding a hard sphere to the center of the hard plate. In this case, if it is installed between the upper structure and the lower structure of the structure, a large compressive load is applied to the hard sphere. Therefore, when shaking such as an earthquake occurs, the upper and lower hard plates are relatively unbonded in accordance with each other. The hard sphere rolls. Further, since a large vertical load is applied to the hard sphere, the adhesive hardly affects the rolling of the hard sphere.
[0089]
Further, instead of the above-described rolling support device, a sliding support device may be used. A known sliding bearing device can be applied to the sliding bearing device. Below, the example of the sliding bearing apparatus suitable for installing between the base (upper structure) and foundation concrete (lower structure) of a house is given. In addition, the same code | symbol is attached | subjected to the member and site | part same as what was mentioned above.
[0090]
The sliding bearing device 40 according to the first example shown in FIGS. 8 and 9 is constructed by attaching sliding bearing members 41 and 42 to the opposing surfaces of the upper and lower hard plates 10 and 11, respectively. As the upper and lower hard plates 10 and 11, the same as the hard plates 10 and 11 of the rolling support device 40 described above can be used. The upper and lower sliding bearing members 41 and 42 have sliding surfaces 43 and 44, respectively.
[0091]
In addition, the sliding bearing device 50 according to the second example shown in FIG. 10 and FIG. 11 has sliding surfaces 51 and 52 facing surfaces of the upper and lower hard plates 10 and 11, and a sliding region around the sliding surfaces 51 and 52. Is provided with a sliding body 54 sandwiched between the upper and lower hard plates 10 and 11.
[0092]
Sliding surfaces 43 and 44 of the sliding bearing members 41 and 42 of the sliding bearing device 40 shown as the first example, opposing sliding surfaces 51 and 52 of the upper and lower hard plates 10 and 11 of the sliding bearing device 50 shown as the second example, and The upper and lower sliding surfaces 55 and 56 of the sliding body 54 may be, for example, surface processing such as polishing or resin coating on both facing surfaces, or surface processing of one facing surface and the other facing surface. A material having a low friction material fixed to the opposite surface may be used. Specifically, it is excellent in self-lubricating property and abrasion resistance, such as polyacetal resin, polyester resin, nylon resin (nylon 6, nylon 66), and is a hard plastic, or glass fiber or carbon fiber is used for hard plastic. , Various inorganic fillers such as asbestos, calcium carbonate, mica, whiskers, or solid lubricants such as molybdenum disulfide, carbon powder, graphite, or metal plates such as stainless steel The synthetic resin plate may be a ceramic coated with a fluorine resin such as polytetrafluoroethylene, or the front and back surfaces may be smooth.
[0093]
[Table 1]

[0094]
[Formula 1]

[0095]
【The invention's effect】
According to the anchor structure of a structure according to the present invention, since the edge of the upper structure and the lower structure of the structure is cut, a more advanced vibration damping function can be obtained.
[0096]
In addition, since the rolling bearing device or the sliding bearing device and the vibration damping device are separate components and arranged between the lower structure and the upper structure of the structure, the hard sphere is used as a rubber material for vibration damping. There are no problems such as getting on. In addition, since the rolling bearing device or the sliding bearing device and the vibration damping device are separate components and are arranged between the lower structure and the upper structure of the structure, the number of rolling bearing devices and vibration damping devices installed. Since the degree of freedom with respect to the installation position is high and the vibration damping device can be disposed so as to suppress the torsional vibration of the upper structure of the structure, higher vibration damping performance can be obtained.
[0097]
Moreover, it is not bulky, is inexpensive, has high-performance vibration absorption performance, and functions as a basic packing material, and thus can be applied to a relatively small structure such as a general house.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a rolling support device for an anchor structure of a structure according to an embodiment of the present invention.
FIG. 2 is a plan view of a rolling support device for an anchor structure of a structure according to an embodiment of the present invention.
FIG. 3 is a longitudinal sectional view showing a vibration damping device for an anchor structure of a structure according to an embodiment of the present invention.
FIG. 4 is a plan view of a vibration damping device for an anchor structure of a structure according to an embodiment of the present invention.
FIG. 5 is a plan view showing a construction process of the rolling bearing device.
FIG. 6 is a plan view showing an installation example of an anchor structure of a structure according to an embodiment of the present invention.
FIG. 7 is a longitudinal sectional view showing a modification of the rolling bearing device.
FIG. 8 is a longitudinal sectional view showing a first example of a sliding bearing device.
FIG. 9 is a longitudinal sectional view showing a sliding state of the sliding support device of the first example.
FIG. 10 is a longitudinal sectional view showing a second example of the sliding bearing device.
FIG. 11 is a longitudinal sectional view showing a sliding state of the sliding support device of the second example.
FIG. 12 is a view showing an anchor structure of a conventional upper structure of a house.
FIG. 13 is a view showing a basic packing material.
[Explanation of symbols]
1 Anchor structure of structure
2 hard spheres
3 Rolling bearing device
4 Damping member (high damping rubber)
5 Vibration control device
6 Housing foundation
7 Foundation concrete (cloth foundation)
8 Damping layer
9 Housing member
10, 11 Hard plate (first hard plate)
13, 14 Anchor bolt
15 1st bolt fastening part
16 Second bolt fastening part
17, 18 Notch
21, 22 Hard plate (second hard plate)
23 Coating material
24, 25 Anchor bolt
26 1st bolt fastening part
27 Second bolt fastening part
28, 29 Notch

Claims (24)

A plurality of rolling bearing devices arranged with hard spheres positioned at the center of the upper and lower first hard plates are connected to the lower structure and the upper structure of the structure so as to support the vertical load of the upper structure of the structure. And distributed between the two,
Disperse between the lower structure and the upper structure of the structure so as to suppress the torsional vibration of the upper structure of the structure, with a plurality of vibration damping devices respectively attached to the upper and lower end surfaces of the high damping rubber Arranged ,
The upper and lower first hard plates of the rolling bearing device and the upper and lower second hard plates of the vibration damping device have bolt fastening portions on both sides of the center portion to which a hard sphere or high damping rubber is attached. The first bolt fastening portion on one side has a notch for bolt mounting along which a bolt can be attached / detached along a straight line connecting the bolt fastening portions on both sides, and the second bolt fastening portion on the opposite side has the straight line An anchor structure for a structure having a bolt mounting notch capable of mounting / removing a bolt along a direction substantially perpendicular to the bolt . A plurality of sliding support devices having sliding bodies arranged between the upper and lower third hard plates are distributed and arranged between the lower structure and the upper structure of the structure so as to support the vertical load of the upper structure of the structure. As well as
Disperse between the lower structure and the upper structure of the structure so as to suppress the torsional vibration of the upper structure of the structure, with a plurality of vibration damping devices respectively attached to the upper and lower end surfaces of the high damping rubber Arranged ,
The upper and lower third hard plates of the sliding support device and the upper and lower second hard plates of the vibration control device are respectively provided with bolt fastening portions on both sides of the center portion to which the sliding body or high damping rubber is attached. The first bolt fastening portion on one side has a notch for bolt mounting along which a bolt can be attached / detached along a straight line connecting the bolt fastening portions on both sides, and the second bolt fastening portion on the opposite side has the straight line An anchor structure for a structure having a bolt mounting notch capable of mounting / removing a bolt along a direction substantially perpendicular to the bolt . The structure according to claim 1 or 2 , wherein the vibration damping device is arranged so that an eccentricity of a vibration damping layer between the upper structure and the lower structure of the structure is within 3%. Anchor structure. The shear modulus of the high damping rubber is 100 N / cm ² or more in an amplitude region of ± 25% or less with respect to the height of the high damping rubber, and ± 150% or more with respect to the height of the high damping rubber. The anchor structure for a structure according to any one of claims 1 to 3 , wherein the amplitude is 40 N / cm ² or less in the amplitude region. Anchor structure of a structure according to any one of claims 1 to 4, wherein the loss factor tanδ of the high damping rubber is 0.3 or more. The high damping rubber contains silica in a proportion of 105 parts by weight or more and 150 parts by weight or less with respect to 100 parts by weight of the base rubber, and a loss coefficient tan δ of 0. The anchor structure for a structure according to any one of claims 1 to 4 , wherein the structure is three or more and the limit deformation is four times or more of the height. Anchor structure of a structure according to claim 6, characterized in that the base rubber is natural rubber, blended with at least bear b down-indene resin as a resin for improving the damping performance. After the high damping rubber has deteriorated due to accelerated heat aging for 60 years, the rate of change in the shear modulus G and / or loss factor tanδ is within 30% when the experiment is conducted at a frequency of 2 Hz. The anchor structure for a structure according to any one of claims 1 to 7 . The anchor structure for a structure according to any one of claims 1 to 8 , wherein the hardness of the first hard plate or the third hard plate is HRC20 or more. The anchor structure for a structure according to claim 9 , wherein the first hard plate or the third hard plate is work-hardened by cold rolling. The anchor structure of a structure according to any one of claims 1 and 3 , wherein the hardness of the hard sphere is HRC20 or more. The anchor structure for a structure according to claim 11 , wherein the hard sphere is work-hardened by rolling. The first hard plate includes a rolling surface of the hard sphere including a circle centered on a predetermined position where the hard sphere is positioned and having a radius of at least twice the diameter of the hard sphere. The anchor structure of a structure according to any one of claims 1 and 3 to 12 , wherein the anchor structure is a structure. The rolling support device is inscribed in a cylindrical body made of a soft elastic body disposed between the upper and lower first hard plates, and the hard sphere is positioned at a central portion of the upper and lower first hard plates. anchor structure according to claim 1, the structure according to any of 3 to 13, characterized in that. The rolling bearing device, of the structure wherein the hard ball body to claim 1, 3 to 14, characterized in that is obtained by positioning adhered to the central portion of the first rigid plate of the upper and lower Anchor structure. The anchor structure for a structure according to any one of claims 1 to 15 , further comprising a stopper that regulates a shear deformation amount of the vibration damping device to be equal to or less than a fracture limit or a yield limit of the high damping rubber. The notch of the second bolt fastening portion, a predetermined bolt fastening position of the first bolt fastening portion centered, claim 1, characterized in that formed along an arc whose radius a predetermined bolt pitches 16 An anchor structure of the structure according to any one of the above. The anchor structure for a structure according to any one of claims 1 to 17 , wherein the rolling bearing device or the sliding bearing device and the vibration damping device are disposed on a foundation concrete of the structure. . In the damping device in which hard plates are respectively attached to the upper and lower end surfaces of the high damping rubber, which is disposed between the upper structure and the lower structure of the structure together with the rolling bearing device or the sliding bearing device.
The high damping rubber contains silica in a proportion of 105 parts by weight or more and 150 parts by weight or less with respect to 100 parts by weight of the base rubber, and a loss coefficient tan δ of 0. 3 or more, and the limit deformation is 4 times the height ,
The hard plates attached to the upper and lower end surfaces of the high-attenuation rubber are respectively provided with bolt fastening portions on both sides sandwiching the central portion to which the high-attenuation rubber is attached, and the first bolt fastening portion on one side is the bolt fastening portion on both sides Bolts can be mounted / removed along a straight line connecting the bolts, and the bolt can be mounted / removed along the direction in which the second bolt fastening portion on the opposite side is substantially perpendicular to the straight line A damping device having a notch for mounting a bolt . Vibration damping device according to claim 19, characterized in that the base rubber is natural rubber, blended with at least bear b down-indene resin as a resin for improving the damping performance. The notch of the second bolt fastening portion, a predetermined bolt fastening position of the first bolt fastening portion centered, claim 19 or 20, characterized in that formed along an arc whose radius a predetermined bolt pitch The vibration control device described in 1. In the rolling support device disposed between the upper structure and the lower structure of the structure together with the vibration damping device, with the hard sphere positioned in the center of the upper and lower hard plates,
Inscribed in a cylindrical body made of a soft elastic body disposed between the upper and lower hard plates, the hard sphere is positioned at the center of the upper and lower hard plates ,
The upper and lower hard plates are respectively provided with bolt fastening portions on both sides of the center portion where the hard sphere is attached, and the bolts are mounted along a straight line connecting the first bolt fastening portions on one side to the bolt fastening portions on both sides. -Has a notch for detachable bolt mounting, and the second bolt fastening part on the opposite side has a notch for mounting / detaching the bolt along the direction substantially perpendicular to the straight line. A rolling bearing device characterized by that . In the rolling support device disposed between the upper structure and the lower structure of the structure together with the vibration damping device, with the hard sphere positioned in the center of the upper and lower hard plates,
Positioning the hard sphere by adhering to a predetermined position in the center of the upper and lower hard plates ,
The upper and lower hard plates are respectively provided with bolt fastening portions on both sides of the center portion where the hard sphere is attached, and the bolts are mounted along a straight line connecting the first bolt fastening portions on one side to the bolt fastening portions on both sides. -Has a notch for detachable bolt mounting, and the second bolt fastening part on the opposite side has a notch for mounting / detaching the bolt along the direction substantially perpendicular to the straight line. A rolling bearing device characterized by that . The notch of the second bolt fastening portion, a predetermined bolt fastening position of the first bolt fastening portion centered, claim 22 or 23, characterized in that formed along an arc whose radius a predetermined bolt pitch Rolling bearing device as described in 1.

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