JP2004300776A - Sliding bearing device with stopper and anchor structure for structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding bearing device, not bulky, inexpensive and having both vibration absorbing performance and a function as a foundation packing material. <P>SOLUTION: This sliding bearing device 1 with a stopper includes: upper and lower hard plates 4, 5; upper and lower sliding plates 6, 7; a sliding bearing body 8 held between the upper and lower sliding plates 6, 7; sliding members 9, 10 disposed on the upper and lower surfaces of the sliding bearing body 8; stopper members 11, 12 demarcating a sliding area of the sliding bearing body 8; and elastic cushioning materials 13, 14 disposed in the inner peripheries of the stopper members 11, 12. Since the sliding bearing member 8 abuts on the stopper members 11, 12 to regulate its sliding, the sliding bearing body 8 goes aground the stopper member 12 of the lower sliding plate 7 to inhibit the upper hard plate 4 and the sliding plate 6 from floating. And also, the shock and collision sound in colliding can be restrained by the elastic cushioning materials 13, 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【００５４】
【式１】

【００５５】
【発明の効果】
本発明に係るストッパ付き滑り支承装置は、滑り支承体がストッパ部材に面当りして、ストッパ部材から受ける水平方向の反力により滑り支承体の摺動が規制される。このため、滑り支承体が下側の硬質板のストッパ部材に乗り上げて、上側の硬質板を浮き上がらせるような動きが滑り支承体に生じることがない。また、滑り支承体の外周面及び／又はストッパ部材の内周面に弾性緩衝材を配設しているので、衝突時に構造物の上部構造に伝わる衝撃を緩和することができ、また衝突音を小さくすることができる。
【００５６】
上下硬質板の対向面を摺動面とするとともに、滑り支承体の上下両面を滑り面とした両面滑り形式のストッパ付き滑り支承装置は、滑り支承体の摺動範囲が大きいので、大きな振動に対応することができる。また、互いに向かい合うように配設する上下の硬質板であって、中央部に略円柱状の滑り支承体を突設した上側又は下側の何れか一方の硬質板と、対向する面に前記滑り支承体が摺動する摺動面を有し、前記摺動面の周縁部に滑り支承体の摺動領域を画定するように円筒状のストッパ部材を突設した他方の硬質板と、前記滑り支承体の外周面及び／又はストッパ部材の内周面に配設した弾性緩衝材とを備えている、上下何れか一方のみの片側滑り形式のストッパ付き滑り支承装置は、両面滑り形式のストッパ付き滑り支承装置に比較して、構成が簡単になり、安価である。
【００５７】
また、ストッパ付き滑り支承装置を、構造物の上部構造の鉛直荷重を支持するように、構造物の下部構造と上部構造との間に分散させて配設するとともに、高減衰ゴムの上下端面に硬質板をそれぞれ取り付けた複数の制振装置を、前記構造物の上部構造の捩じれ振動を抑制するように、構造物の下部構造と上部構造との間に分散させて配設した構造物のアンカー構造は、ストッパ付き滑り支承装置で構造物の上部構造の鉛直荷重を支承するとともに、地震発生時には、滑り支承体と硬質板とが円滑に摺動して、上部構造と下部構造との相対的な水平移動を許容することができる。
【００５８】
上述したストッパ付き滑り支承装置は、安価に製造でき、嵩張らず、基礎コンクリートの上に設置することが可能であるから、構造物の上部構造の鉛直荷重を支持するように、構造物の下部構造と上部構造との間に分散させて配設するとともに、高減衰ゴムの上下端面に硬質板をそれぞれ取り付けた複数の制振装置を、構造物の上部構造の捩じれ振動を抑制するように、構造物の下部構造と上部構造との間に分散させて配設した構造物のアンカー構造に適用するのに好適である。
【００５９】
また、上述したストッパ付き滑り支承装置は、複数の転がり支承装置（又は滑り支承装置）と協働して、構造物の上部構造の鉛直荷重を支持するように、構造物の下部構造と上部構造との間に分散させて配設するとともに、高減衰ゴムの上下端面に硬質板をそれぞれ取り付けた複数の制振装置を、構造物の上部構造の捩じれ振動を抑制するように、構造物の下部構造と上部構造との間に分散させて配設した構造物のアンカー構造に適用するのに好適である。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る両面滑り形式のストッパ付き滑り支承装置を示す縦断面図。
【図２】図１のストッパ付き滑り支承装置の平面図。
【図３】図１のストッパ付き滑り支承装置の施工工程を示す平面図。
【図４】図１のストッパ付き滑り支承装置の使用状態を示す概略縦断面図。
【図５】図１のストッパ付き滑り支承装置の使用状態を示す概略縦断面図。
【図６】図１のストッパ付き滑り支承装置の使用状態を示す概略縦断面図。
【図７】本発明の第２実施形態に係る両面滑り形式のストッパ付き滑り支承装置を示す縦断面図。
【図８】本発明の第３実施形態に係る両面滑り形式のストッパ付き滑り支承装置を示す縦断面図。
【図９】本発明の下側滑り形式のストッパ付き滑り支承装置を示す縦断面図。
【図１０】ストッパ付き滑り支承装置を用いた構造物のアンカー構造を示す平面図。
【図１１】構造物のアンカー構造に用いる転がり支承装置の一実施形態を示す縦断面図。
【図１２】構造物のアンカー構造に用いる制振装置の一実施形態を示す縦断面図。
【図１３】構造物のアンカー構造に用いる滑り支承装置の一実施形態を示す縦断面図。
【図１４】図１３の滑り支承装置の使用状態を示す縦断面図。
【図１５】従来の住宅の上部構造のアンカー構造を示す縦断面図。
【図１６】基礎パッキン材を示す部分断面斜視図。
【符号の説明】
１ ストッパ付き滑り支承装置
２ 上部構造
３ 下部構造
４、５ 硬質板
６、７ 摺動板
８ 滑り支承体
９、１０ 摺動部材
１１、１２ ストッパ部材
１３、１４ 弾性緩衝材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an anchor structure of a structure which is mounted between an upper structure and a lower structure of a structure and fixes the upper structure on the lower structure, and a sliding bearing device with a stopper used for the anchor structure of the structure. It is.
[0002]
[Prior art]
A lightweight structure such as a house is constructed on a basic concrete 101 generally called a cloth foundation. When the base 103 (upper structure) of a building (structure) is fixed on the basic concrete 101 (lower structure), for example, as shown in FIG. The base is buried in the base 101, the upper part of the anchor bolt 102 is penetrated through the base 103, and the portion protruding from the upper surface of the base 103 is fixed with the washer 104 and the nut 105.
[0003]
However, if the base 103 is simply fixed on the foundation concrete 101, traffic vibration generated by the traffic of a large vehicle is transmitted from the foundation concrete 101 to the foundation 103 as it is. For this reason, as shown in FIG. 16, there is a type in which a rubber plate 100 is interposed between a base 103 and a foundation concrete 101 to reduce traffic vibration. However, even in this case, the anchor bolt 102 firmly connects the base 103 and the foundation concrete 101, and the vibration is directly transmitted from the foundation concrete 101 to the foundation 103 via the anchor bolt 102, and the vibration is not reduced so much. No significant vibration isolation effect was obtained.
[0004]
In addition, such a rubber plate 100 has a function as a base packing material for ventilation of a base part of a house. That is, by arranging a plurality of rubber plates 100 at predetermined intervals between the foundation concrete 101 and the base 103 of the house, the gap between the foundation 103 and the foundation concrete 101 causes Ventilation of the inside can be performed, the flow of air in the foundation concrete 101 is improved, and moisture can be reduced. Further, by cutting the edge between the base concrete 101 and the base 103, there is an effect that the moisture absorbed by the base concrete 101 is not transmitted to the base 103.
[0005]
As a known document indicating the general technical level of this type of basic packing material, the following Patent Document 1 is known.
[0006]
In addition, as a basic packing material that also has a vibration damping function that absorbs vibration caused by traffic and earthquake caused by the traffic of large vehicles such as dump trucks and railway cars, rubber for restoration with circular holes between upper and lower hard plates For example, Japanese Patent Application Laid-Open Publication No. HEI 11-163556 discloses a device having a rolling support structure in which a material is disposed and a hard sphere is rotatably disposed in a hole of a rubber material.
[0007]
In addition, while supporting the vertical load of the upper structure, which is arranged between the upper structure and the lower structure, the bearing body moves horizontally when an earthquake occurs, and the relative horizontal movement between the upper structure and the lower structure is Sliding bearing devices adapted to be allowed are proposed in, for example, Patent Documents 3 to 5 below.
[0008]
[Patent Document 1] JP-A-2001-355350
[Patent Document 2] JP-A-2000-110403
[Patent Document 3] JP-A-2001-241502
[Patent Document 4] JP-A-2002-039266
[Patent Document 5] JP-A-11-210826
[0009]
[Problems to be solved by the invention]
The base packing material described in Patent Document 1 described above merely sandwiches a rubber material between the upper structure and the lower structure of a structure, and is used for vibrations caused by large vehicles such as earthquakes and dump trucks, and traffic of railway vehicles. Insufficient vibration damping function to absorb traffic vibrations caused by traffic.
[0010]
Further, although the base 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 at the time of installation due to its 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, and in such a case, the hard sphere immediately rides on the rubber material during vibration. According to the knowledge of the present inventors, when a hard sphere rides on a rubber material, the rubber material may be damaged at a position where the hard sphere rides, so that a sufficient vibration damping effect cannot be obtained. Also, when a hard sphere rides on the rubber material, the upper structure of the structure may be lifted by the hard sphere, and the hard sphere may fall off. When the hard sphere falls off, the function as a vibration damping device cannot be exhibited.
[0011]
In addition, a vibration isolating device combining a laminated rubber and an oil damper is well known. However, a laminated rubber or an oil damper used in such a vibration isolating method has a vertical load or a horizontal load that a single device bears. Because of the size of the equipment and the difficulty in miniaturization due to the structure of the equipment, the equipment is large, the installation cost and the installation space are large, and it is uneconomical for relatively small structures such as ordinary houses, and it is not widely used. Not.
[0012]
Further, since the sliding bearing devices described in Patent Documents 3 to 5 are provided with a vibration damping member such as high damping rubber in the sliding bearing body, the structure is complicated and expensive, and the sliding bearing body is a stopper member. There is a problem that a collision and a collision sound are generated when a collision occurs.
[0013]
Therefore, the present invention provides an anchor structure for a structure that is not bulky, is inexpensive, has both vibration absorption performance and a function as a base packing material, and a stopper suitable for being applied to the anchor structure of such a structure. The purpose of the present invention is to provide a sliding bearing device.
[0014]
[Means for Solving the Problems]
A sliding bearing device with a stopper according to the present invention has upper and lower hard plates having sliding surfaces on opposing surfaces, a substantially columnar shape disposed between the upper and lower hard plates, and facing the sliding surface of the hard plates. A sliding support having a surface formed on a sliding surface, a cylindrical stopper member protruding from a sliding surface of the upper and lower hard plates so as to define a sliding area of the sliding bearing, An elastic cushioning member is provided on the outer peripheral surface and / or the inner peripheral surface of the stopper member.
[0015]
Further, upper and lower hard plates disposed so as to face each other, one of the upper and lower hard plates having a substantially cylindrical slide bearing body protruding in the center portion, and the sliding surface facing the upper or lower hard plate. The other hard plate having a sliding surface on which the bearing slides, and a cylindrical stopper member protruding from a peripheral portion of the sliding surface so as to define a sliding area of the sliding bearing; An elastic cushioning member is provided on the outer peripheral surface of the support and / or the inner peripheral surface of the stopper member.
[0016]
The sliding bearing device with a stopper has a function of supporting a vertical load of a superstructure of a building, a function of regulating horizontal displacement, and a function of mitigating an impact as a sliding bearing device. This sliding bearing device with a stopper may be used for an anchor structure of a structure as follows.
[0017]
That is, the anchor structure of the structure according to the present invention disperses the above-described sliding bearing device with stopper 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. And a plurality of vibration damping devices, each of which has a hard plate attached to the upper and lower end surfaces of the high-damping rubber, are connected to the lower and upper structures of the structure so as to suppress the torsional vibration of the upper structure of the structure. It is characterized by being arranged in a distributed manner between them.
[0018]
Further, the anchor structure of the structure according to the present invention includes a rolling bearing device or a sliding bearing device, and the above-described sliding bearing device with stopper, which supports a vertical load of an upper structure of the structure. Along with dispersing and disposing between the upper structure, a plurality of vibration damping devices each having a hard plate attached to the upper and lower end surfaces of the high damping rubber, so as to suppress the torsional vibration of the upper structure of the structure, The structure is distributed between the lower structure and the upper structure of the structure.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a slide bearing device with a stopper according to an embodiment of the present invention and an anchor structure of a structure using the slide bearing device with a stopper will be described with reference to the drawings.
[0020]
FIG. 1 shows a sliding bearing device 1 with a stopper according to an embodiment of the double-sided sliding type. As shown in FIG. 1, the sliding bearing device 1 with stoppers includes upper and lower hard plates 4 and 5 disposed on opposing surfaces of a base 2 (upper structure of a structure) and a foundation concrete 3 (lower structure). , Sliding plates 6 and 7 disposed on opposing surfaces of the hard plates 4 and 5, sliding bearings 8 slidably disposed between the sliding plates 6 and 7, and upper and lower end surfaces of the sliding bearings 8 Sliding members 9 and 10, stopper members 11 and 12 for defining a sliding sliding area of the sliding bearing body 8, and elastic cushioning members 13 and 13 provided on inner peripheral surfaces of the stopper members 11 and 12. 14 is provided.
[0021]
As shown in FIG. 2, the hard plates 4 and 5 are substantially rhombic plate-shaped members having a required hardness and flatness, and are preferably subjected to a rust-proof treatment such as nickel plating. The hard plates 4 and 5 are manufactured by subjecting a plate-shaped material to cold rolling. In the cold rolling, the plate-shaped material is drawn while being sandwiched between rolling rollers. Since no heat treatment is performed, no distortion occurs, and a required flatness can be secured. The required hardness can be obtained by work hardening. According to this cold rolling, hard plates 4 and 5 having an HRC of 20 or more, more preferably an HRC of 25 or more can be obtained using a steel material such as SUS304.
[0022]
In addition, since the hard plates 4 and 5 receive a load in the vertical direction from the slide bearing body 8 after being installed, there is a possibility that a depression may occur in the vertical direction due to creep strain. In order to slide the slide bearing 8 smoothly when an earthquake occurs, the smaller the amount of creep distortion, the better. As described above, a material that is work-hardened by cold rolling is preferable because creep distortion is reduced. More specifically, by using a material having a vertical subsidence amount of 200 μm or less corresponding to 60 years, it is possible to maintain smooth sliding of the slide bearing body 8 for a long period (the service life of a general house). .
[0023]
As shown in FIG. 2, for example, the sliding plates 6 and 7 are substantially rhombic plate-like members similar to the hard plates 4 and 5 and have a required hardness and flatness. The sliding sliding surface includes a circle having a radius of a distance of at least twice the diameter of the bearing 8 (for example, 80 mm or more if the diameter of the sliding bearing 8 is 40 mm). The sliding plates 6 and 7 are preferably formed of, for example, ethylene tetrafluoride resin or polyacetal resin.
[0024]
The slide bearing 8 has a predetermined hardness and a cylindrical shape, and is formed of, for example, steel or stainless steel. Concave portions 8a, 8b are formed on the upper and lower end surfaces of the slide bearing body 8, and sliding members 9, 10 are fixedly arranged in the concave portions 8a, 8b, and a part thereof is projected from the concave portions 8a, 8b. I have to. As a method of fixing the sliding members 9 and 10 to the recesses 8a and 8b, any method such as bonding, caulking, and screwing can be adopted. In the case of screwing, the head of the screw should not project or be exposed from the surfaces of the sliding members 9 and 10. The sliding members 9 and 10 are formed of, for example, polyphenol resin or ethylene tetrafluoride resin. It is preferable that the diameter of the slide bearing 8 be 1.5 times or more the height of the sliding bearings 9 and 10. In this way, when an earthquake occurs, the sliding bearing body 8 slides smoothly without tilting or falling down.
[0025]
The stopper members 11 and 12 are cylindrical members protruding from the periphery of the sliding surfaces of the sliding plates 6 and 7 so as to define a sliding area of the sliding support body 8. Each is protruding. Elastic cushioning members 13 and 14 are provided on the inner peripheral surfaces of the stopper members 11 and 12 to alleviate the impact when the sliding support body 8 collides with the stopper members 11 and 12 and the collision sound. The elastic cushioning members 13 and 14 are preferably made of an elastic material such as rubber or soft urethane material.
[0026]
Unlike the rolling bearing device having a hard sphere, the sliding bearing device 1 with the stopper does not require the sliding bearing member 8 to be positioned at the center of the sliding surface like a hard sphere member. Can be disposed at any position on the sliding surfaces of the sliding plates 6 and 7, and is installed between the base 2 (upper structure of the structure) and the foundation concrete 3 (lower structure) of the house.
[0027]
As shown in FIG. 2, bolt fastening portions 17, 18 for fastening anchor bolts 15, 16 are provided on both sides of the upper and lower hard plates 4, 5 and the sliding plates 6, 7 of the sliding bearing device 1 with stoppers. Has been. A notch 19 is formed in the first bolt fastening portion 17 on one side along a straight line L connecting the bolt fastening portions 17 and 18 on both sides, and the second bolt fastening portion 18 on the opposite side is provided with a bolt fastening portion on both sides. A notch 20 is formed along a direction orthogonal to a straight line L connecting the lines 17 and 18. Specifically, the notch 20 of the second bolt fastening portion 18 is centered on a predetermined fastening position (for example, a designed bolt fastening position O) of the first bolt fastening portion 17 and has a predetermined bolt pitch (for example, a design bolted position). Are formed along an arc C having a radius equal to the bolt pitch P). The widths of the notches 19 and 20 of the bolt fastening portions 17 and 18 are slightly larger than the diameters of the anchor bolts 15 and 16, and the anchor bolts 15 and 16 are mounted along the notches 19 and 20. It can be detached. In addition, the notches 19 and 20 are formed deeper than designed bolt fastening positions so as to allow for errors during construction.
[0028]
When installing the slide bearing device 1 with the stopper, as shown in FIG. 3, the notch 19 of the first bolt fastening portion 17 is attached to the anchor bolt 15 on one side, and as shown by a two-dot chain line in the drawing. Then, it is preferable to rotate the sliding bearing device 1 with the stopper, attach the opposite anchor bolt 16 to the second bolt fastening portion 18 along the notch 20, and fix the sliding bearing device 1 with the stopper with a nut. In addition, since the sliding support body 8 is configured to slide on the upper and lower surfaces, it is not necessary to position the sliding bearing body 8 at the center of the sliding surface, and the construction is easy.
[0029]
When an earthquake occurs, the base 2 of the house and the foundation concrete 3 are relatively displaced in the horizontal direction. As shown in FIG. 4, the sliding bearing device 1 with the stopper has the upper and lower hard plates 4, 5 and the sliding plates 6, 7 which are relatively horizontal in accordance with the relative displacement between the base 2 of the house and the foundation concrete 3. To be displaced. The sliding bearing 8 slides between the upper and lower sliding plates 6 and 7 by the sliding members 9 and 10 on the upper and lower ends while supporting the vertical load of the upper structure. For example, as shown in FIG. 4, the sliding bearing 8 first slides between the upper sliding plate 6, and as shown in FIG. 5, the sliding bearing 8 is connected to the elastic cushioning material 13 of the upper stopper member 11. Abut. Thereafter, as shown in FIG. 6, when the slide bearing 8 slides between the lower sliding plate 7 and collides with the upper and lower stopper members 11, 12, the sliding of the slide bearing 8 is regulated. .
[0030]
According to the sliding bearing device 1 with the stopper, the cylindrical sliding bearing body 8 comes into contact with the stopper members 11 and 12, and the sliding bearing body 8 slides by a horizontal reaction force received from the stopper members 11 and 12. Is regulated. For this reason, the sliding bearing 8 does not ride on the stopper member 12 of the lower sliding plate 7, and the sliding bearing 8 does not move to lift the upper hard plate 4 and the sliding plate 6.
[0031]
In addition, the elastic cushioning members 13 and 14 are provided on the inner periphery of the stopper members 11 and 12, so that the impact transmitted to the upper structure of the structure at the time of collision can be reduced, and the collision noise can be reduced. In addition, since the elastic cushioning members 13 and 14 are deformed by contacting the slide bearing 8 at the time of collision, the deformation of the slide bearing 8 and / or the stopper members 11 and 12 can be prevented. Also, the elastic cushioning members 13 and 14 provided on the upper and lower stopper members 11 and 12 can sandwich the sliding bearing body 8 from both sides in the horizontal direction and regulate the movement of the sliding bearing body 8, so that the sliding bearing body 8 can be controlled in the event of collision. Irregular movement of the sliding bearing 8 can be prevented, and the sliding of the sliding bearing 8 can be regulated smoothly and shock can be absorbed and reduced. Further, when an earthquake occurs, the sliding bearing device 1 is controlled based on a function of absorbing vibration energy by friction between the sliding plates 6 and 7 and the sliding bearing member 8 when the sliding bearing member 8 slides. It has a vibration function.
[0032]
As described above, the embodiment of the sliding bearing device 1 with the stopper according to the present invention has been described, but the sliding bearing device with the stopper according to the present invention is not limited to the above.
[0033]
For example, FIG. 1 illustrates an example in which the elastic cushioning members 13 and 14 are disposed on the inner periphery of the stopper members 11 and 12. However, as in a sliding bearing device 1A with stoppers shown in FIG. May be provided with an elastic cushioning material 61 on the outer periphery of. In this case, since the amount of the elastic material used for the elastic cushioning member 61 can be small, the manufacturing cost can be reduced. Further, as in a sliding bearing device 1B with a stopper shown in FIG. 8, elastic cushioning members 13 ', 14', 61 'may be provided on both the inner periphery of the stopper members 11, 12 and the outer periphery of the sliding bearing body 8. .
[0034]
In addition, the cross-sectional shape of the elastic cushioning member of the sliding bearing device with the stopper may be appropriately changed in design, and the elastic material used for the elastic cushioning member may be appropriately selected. For example, when the elastic cushioning members 61, 61 'are disposed on the outer periphery of the sliding support body 8, the elastic cushioning members 61, 61' are separated from the upper and lower sliding plates 6, 7 as shown in FIGS. The elastic cushioning members 61, 61 ′ may be brought into contact with the sliding surfaces of the upper and lower sliding plates 6, 7 to improve the vibration damping function by frictional force and to provide the sliding bearing 8. It is also possible to wipe off foreign matter on the surface on which slides.
[0035]
Although the upper and lower sliding plates 6 and 7 serving as sliding surfaces and the sliding members 9 and 10 provided on the upper and lower surfaces of the sliding support body 8 are exemplified by those formed of tetrafluoroethylene resin or polyacetal resin, It is not limited to this. For example, polyester resin, nylon resin (nylon 6, nylon 66) and the like having excellent self-lubricating properties and abrasion resistance, and hard plastics such as glass fiber, carbon fiber, asbestos, calcium carbonate, mica (mica), Various inorganic fillers such as whiskers, or those mixed with solid lubricants such as molybdenum disulfide, carbon powder, and graphite; and fluorine-based resins such as polytetrafluoroethylene in metal plates or synthetic resin plates such as stainless steel And ceramics having a smooth surface are preferably used. Alternatively, instead of providing the sliding plates 6, 7 and / or the sliding members 9, 10, the sliding surfaces of the hard plates 4, 5 and / or the sliding bearing body 8 may be subjected to a surface treatment such as polishing or resin coating. It may be applied.
[0036]
FIG. 9 shows a sliding bearing device 1C with a stopper of the lower sliding type. The sliding bearing device 1C with a stopper is different from the sliding bearing device 1 with a stopper shown in FIG. 1 in that a sliding plate 7, a stopper member 12, and an elastic cushioning material 14 are provided only on the surface facing the lower hard plate 5. I have. The upper surface of the sliding support 8 'is fixed to the center of the upper hard plate 4, and the lower surface is provided with the recess 8b and the sliding member 10 only on the lower surface. Also in such a sliding support device 1C with a stopper of the lower sliding type, the vertical load of the upper structure is supported by the sliding bearing body 8 ', and the sliding bearing function by sliding of the sliding bearing body 8' when an earthquake occurs occurs. A stopper function by contacting the support body 8 ′ with the stopper member 12 and a function of alleviating an impact and suppressing a collision sound by the elastic cushioning member 14 are obtained. In such a sliding bearing device 1C with a lower sliding type stopper, as shown in the drawing, the height of the stopper member 12 and the elastic cushioning material 14 is set so that the upper hard plate does not collide with the upper anchor bolts 15, 16. It is good to have a size extending toward 4.
[0037]
9, the sliding plate 6, the stopper member 11, and the elastic cushioning member 13 are provided only on the upper hard plate 4, and the lower surface of the sliding support body is fixed to the center of the lower hard plate 5, A sliding bearing device with a stopper of an upper sliding type in which a concave portion 8a and a sliding member 9 are provided on the upper surface. Also, in a single-sided sliding type bearing device with a stopper in which only one of the upper and lower sides of the sliding bearing member slides, similarly to FIG. 11, 12 and elastic cushioning materials 13, 14 may be provided.
[0038]
Next, an embodiment of an anchor structure of a structure using the slide bearing device 1 with a stopper will be described.
[0039]
As shown in FIG. 10, the present inventors provide a plurality of vibration damping layers 31 between a base 2 (upper structure of a structure) and a foundation concrete 3 (lower structure) of a house (not shown). By dispersing and disposing the rolling bearing device (or sliding bearing device) 32 and the vibration damping device 33, it is inexpensive, not bulky, has a function of absorbing earthquake vibration, and has a function as a basic packing for ventilating under the floor of a house. An anchor structure 30 of a house (upper structure of a structure) having a structure having functions is proposed.
[0040]
More specifically, a plurality of rolling bearings (or sliding bearings) 32 are dispersed and arranged so as to support the vertical load of the house (superstructure of the structure) substantially uniformly, and cooperate with each other. In order to suppress torsional vibration of a house (superstructure of a structure), an anchor structure of a structure in which a plurality of vibration damping devices 33 are disposed in a distributed manner has been proposed. The anchor structure 30 of this structure can obtain a higher-level vibration damping function by such a distributed arrangement of the rolling bearing device (or the sliding bearing device) 32 and the vibration damping device 33.
[0041]
For example, as shown in FIG. 11, the rolling bearing device 32 includes a hard sphere 41, a cylindrical positioning member 42 that houses the hard sphere 41, and a hard plate 43 that vertically sandwiches the hard sphere 41 and the positioning member 42. , 44. The hard plates 43, 44 of the rolling bearing device 32 have the same configuration, operation, and effects as those of the hard plates 4, 5 of the above-described stopper-equipped sliding bearing device 1, and a description thereof will be omitted.
[0042]
The hard sphere 41 used for the rolling bearing device 32 is a sphere having a required hardness and sphericity, and may be manufactured by, for example, rolling a steel material roughly processed into a roughly spherical shape. In the rolling process, a steel material roughly processed into a roughly spherical shape is vertically sandwiched between polishing plates, and is rolled between the polishing plates to form a spherical shape while removing distortion on the surface of the steel material. The hard sphere 41 increases in hardness due to the work hardening caused by the rolling process. According to this rolling process, it is possible to obtain a hard sphere 41 having hardness equal to or higher than HRC20 and a high sphericity by using an inexpensive steel material such as S15C, thereby reducing the cost of parts of the hard sphere 41. be able to. It is desirable that the hard sphere 41 be subjected to a rust prevention treatment such as nickel plating.
[0043]
The hard plates 43 and 44 used for the rolling bearing device 32 are substantially rhombic plate-like members having the required hardness and flatness, and are similar to the hard plates 4 and 5 in the stopper-equipped sliding bearing device 1. A positioning member 42 is adhered to the center to position the hard sphere 41 at the center. The hard plates 43 and 44 are provided with rolling surfaces including a circle having a radius that is at least twice the diameter of the hard sphere 41 around the position where the hard sphere 41 is positioned. The rolling surfaces of the hard plates 43 and 44 may also be subjected to rust prevention treatment such as nickel plating. On both sides of the upper and lower hard plates 43 and 44, bolt fastening portions 17 and 18 (see FIGS. 2 and 3) similar to those of the slide bearing device 1 with stoppers are provided to facilitate construction.
[0044]
The positioning member 42 is preferably made of a soft elastic material such as a soft urethane foam, a polystyrene foam, or a polyethylene foam. The inner diameter of the positioning member 42 is preferably the same as or slightly smaller than the diameter of the hard sphere 41 so that the positioning of the hard sphere 41 can be performed reliably. In addition, as shown in FIG. 11, by covering the periphery of the hard sphere 41 with the positioning member 42, it is possible to prevent dust and dirt from entering the rolling region of the hard sphere 41.
[0045]
In addition, in this rolling bearing device 32, the positioning member 42 is bonded only to either the lower hard plate 44 or the upper hard plate 43, and the positioning member 42 is bonded to the outer peripheral side, The inner peripheral side is not bonded. Thus, when the hard sphere 41 rolls during an earthquake, the hard sphere 41 is easily deformed in accordance with the rolling, and the resistance of the hard sphere 41 to rolling is reduced.
[0046]
Further, in the anchor structure 30 of the structure, the vibration damping device 33 disposed together with the sliding bearing device 1 with the stopper and the rolling bearing device 32 (or the sliding bearing device) has, for example, high damping as shown in FIG. It has a cylindrical damping member 51 made of a rubber-like elastic body made of rubber, hard plates 52 and 53 sandwiching the damping member 51 up and down, and a rubber covering member 54, and upper and lower ends of the damping member 51. The hard plates 52 and 53 are respectively vulcanized and bonded, and the outer peripheral surface of the damping member 51 is covered with a rubber covering material 54. Table 1 below shows a preferred compounding example of the rubber material used for the vibration damping member 51. In Table 1, phr is a symbol used when indicating the mass of the compounding agent by the number of parts with respect to 100 parts of rubber. The vibration damping device 33 is provided so as to suppress torsional vibration of the upper structure of the structure. Specifically, the vibration control layer 31 is disposed so that the eccentricity of the vibration damping layer 31 between the upper structure 2 and the lower structure 3 of the structure is within 3%. Note that the eccentricity of the vibration damping layer 31 between the upper structure 2 and the lower structure 3 of the structure may be calculated by Expression 1 described later.
[0047]
Since the vibration damping device 33 is not bulky, it is suitable for an anchor structure of a structure having a function of a base packing.
[0048]
The sliding bearing device 1 with a stopper according to the present invention is applicable to the anchor structure 30 of this structure, and all or some (at least one) of the plurality of rolling bearing devices 32 (or sliding bearing devices) are used. By replacing the sliding bearing device 1 with a stopper, the anchor structure 30 of this structure has a function of supporting the vertical load of the upper structure, a function of damping when an earthquake occurs, and a function of the stopper. Since the manufacturing cost of the sliding bearing device 1 with the stopper is higher than that of the sliding bearing device without the stopper members 11 and 12, when the number of the sliding bearing devices 1 with the stopper is reduced, the anchor structure 30 of the structure is reduced. Overall cost can be reduced. In consideration of the weight of the house, the inertial force acting during an earthquake, and the strength of the stopper members 11 and 12, as shown in FIG. 10, the number of the sliding bearing devices 1 with stoppers is reduced to such an extent that the stopper members 11 and 12 are not broken. Should be suppressed.
[0049]
In addition, in the sliding area of the sliding bearing 8 defined by the stopper members 11 and 12 in the sliding bearing 1 with the stopper when used in the anchor structure 30 of this structure, the damping device 33 can be prevented from being damaged. It is good to consider. That is, it is generally known that the high damping rubber used for the damping member 51 of the damping device 33 reaches the breaking limit or the yield limit due to the amount of horizontal shear deformation about four times the height. Accordingly, in order to prevent the damping member 51 from being damaged, the displacement of the upper and lower hard plates 52 and 53 of the damping device 33 in the shear direction (horizontal direction) is suppressed by the sliding bearing device 1 with the stopper. The height of the vibration member 51 is preferably restricted to four times or less.
[0050]
The embodiments of the sliding bearing device 1 with the stopper according to the present invention and the application of the structure proposed by the present inventors to the anchor structure 30 have been described above. The anchor structure is not limited to the above.
[0051]
Further, instead of the above-described rolling bearing device 32, a sliding bearing device may be used. A well-known sliding bearing device can be applied to the sliding bearing device. The following is an example of a sliding bearing device suitable for being installed between the foundation (upper structure) and the foundation concrete (lower structure) of a house. The same members and parts as those of the above-described rolling bearing device 32 are denoted by the same reference numerals.
[0052]
The sliding bearing device 34 shown in FIGS. 13 and 14 is one in which sliding bearing members 63 and 64 are attached to surfaces facing upper and lower hard plates 61 and 62, respectively. The upper and lower hard plates 61 and 62 may be the same as the hard plates 43 and 44 of the rolling bearing device 32 described above. The overlapping surfaces of the upper and lower sliding bearing members 63 and 64 are sliding surfaces 65 and 66, respectively.
[0053]
[Table 1]

[0054]
(Equation 1)

[0055]
【The invention's effect】
In the sliding bearing device with the stopper according to the present invention, the sliding bearing body comes into contact with the stopper member, and the sliding of the sliding bearing body is regulated by a horizontal reaction force received from the stopper member. For this reason, the sliding bearing does not ride on the stopper member of the lower hard plate, and the sliding bearing does not move to lift the upper hard plate. In addition, since the elastic cushioning material is provided on the outer peripheral surface of the sliding support body and / or the inner peripheral surface of the stopper member, it is possible to reduce the impact transmitted to the upper structure of the structure at the time of collision, and to reduce the collision sound. Can be smaller.
[0056]
Sliding bearings with stoppers of the double-sided sliding type, in which the upper and lower hard plates oppose each other as sliding surfaces, and the upper and lower surfaces of the sliding bearings are sliding surfaces, the sliding bearings have a large sliding range, so large vibrations can occur. Can respond. Further, upper and lower hard plates disposed so as to face each other, one of the upper and lower hard plates having a substantially cylindrical slide bearing body protruding in the center portion, and the sliding surface facing the upper or lower hard plate. The other hard plate having a sliding surface on which the bearing slides, and a cylindrical stopper member protruding from a peripheral portion of the sliding surface so as to define a sliding area of the sliding bearing; A sliding bearing device having a stopper of a one-sided sliding type, which is provided only on one of upper and lower sides, and having a stopper of a double-sided sliding type, comprising an elastic cushioning member disposed on the outer peripheral surface of the bearing body and / or the inner peripheral surface of the stopper member. Compared to a sliding bearing device, the structure is simpler and less expensive.
[0057]
In addition, a sliding bearing device with a stopper is dispersedly disposed 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, and is provided on the upper and lower end surfaces of the high damping rubber. An anchor for a structure in which a plurality of vibration damping devices each having a hard plate attached thereto are dispersed and disposed between a lower structure and an upper structure of the structure so as to suppress torsional vibration of the upper structure of the structure. The structure uses a sliding bearing device with a stopper to support the vertical load of the upper structure of the structure, and when an earthquake occurs, the sliding bearing body and the hard plate slide smoothly, and the relative structure between the upper structure and the lower structure Horizontal movement can be tolerated.
[0058]
The above-described sliding bearing device with a stopper can be manufactured at low cost, is not bulky, and can be installed on the foundation concrete. Therefore, the lower structure of the structure is supported so as to support the vertical load of the upper structure of the structure. And a plurality of vibration damping devices with hard plates attached to the upper and lower end surfaces of the high-damping rubber, respectively, to reduce the torsional vibration of the upper structure of the structure. It is suitable to be applied to an anchor structure of a structure that is dispersed and disposed between a lower structure and an upper structure of a product.
[0059]
In addition, the above-described sliding bearing device with a stopper cooperates with a plurality of rolling bearing devices (or sliding bearing devices) to support the vertical load of the upper structure of the structure and the upper structure of the structure. And a plurality of vibration damping devices with hard plates attached to the upper and lower end surfaces of the high-damping rubber, respectively, so that the torsional vibration of the upper structure of the structure is suppressed. It is suitable to be applied to an anchor structure of a structure that is dispersed and disposed between a structure and a superstructure.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a sliding bearing device with a stopper of a double-sided sliding type according to a first embodiment of the present invention.
FIG. 2 is a plan view of the sliding bearing device with a stopper shown in FIG. 1;
FIG. 3 is a plan view showing a construction process of the slide bearing device with a stopper shown in FIG. 1;
FIG. 4 is a schematic longitudinal sectional view showing a use state of the slide bearing device with a stopper of FIG. 1;
FIG. 5 is a schematic longitudinal sectional view showing a use state of the sliding bearing device with a stopper of FIG. 1;
FIG. 6 is a schematic longitudinal sectional view showing a use state of the slide bearing device with a stopper of FIG. 1;
FIG. 7 is a longitudinal sectional view showing a sliding bearing device with a stopper of a double-sided sliding type according to a second embodiment of the present invention.
FIG. 8 is a longitudinal sectional view showing a sliding bearing device with a stopper of a double-sided sliding type according to a third embodiment of the present invention.
FIG. 9 is a longitudinal sectional view showing a sliding support device with a stopper of the lower sliding type according to the present invention.
FIG. 10 is a plan view showing an anchor structure of a structure using a slide bearing device with a stopper.
FIG. 11 is a longitudinal sectional view showing one embodiment of a rolling bearing device used for an anchor structure of a structure.
FIG. 12 is a longitudinal sectional view showing one embodiment of a vibration damping device used for an anchor structure of a structure.
FIG. 13 is a longitudinal sectional view showing one embodiment of a sliding bearing device used for an anchor structure of a structure.
FIG. 14 is a longitudinal sectional view showing a use state of the slide bearing device of FIG. 13;
FIG. 15 is a longitudinal sectional view showing an anchor structure of a conventional superstructure of a house.
FIG. 16 is a partial cross-sectional perspective view showing a base packing material.
[Explanation of symbols]
1 Sliding bearing device with stopper
2 Superstructure
3 Substructure
4,5 hard plate
6, 7 sliding plate
8 Sliding bearings
9, 10 sliding member
11, 12 stopper member
13,14 elastic cushioning material

Claims (4)

Upper and lower hard plates having sliding surfaces on opposite surfaces,
A sliding support body having a substantially cylindrical shape disposed between the upper and lower hard plates, and a surface facing the sliding surface of the hard plate formed on a sliding surface;
A cylindrical stopper member protruding from the sliding surface of the upper and lower hard plates so as to define a sliding area of the sliding bearing body,
An elastic cushioning member provided on an outer peripheral surface of the slide bearing body and / or an inner peripheral surface of the stopper member. Upper and lower hard plates disposed so as to face each other, the upper or lower hard plate having a substantially cylindrical slide bearing body protruding in the center thereof,
The other has a sliding surface on which the sliding bearing slides on an opposing surface, and a cylindrical stopper member protruding from a peripheral portion of the sliding surface so as to define a sliding region of the sliding bearing. A hard plate,
An elastic cushioning member provided on an outer peripheral surface of the slide bearing body and / or an inner peripheral surface of the stopper member. The sliding bearing device with a stopper according to claim 1 or 2 is dispersed and disposed between a lower structure and an upper structure of the structure so as to support a vertical load of the upper structure of the structure.
A plurality of vibration damping devices each having a hard plate attached to the upper and lower end surfaces of the high damping rubber are dispersed 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. An anchor structure for a structure, which is provided. The rolling bearing device or the sliding bearing device and the sliding bearing device with stopper according to claim 1 or 2 are connected to each other so as to support the vertical load of the upper structure of the structure. Along with dispersing between them,
A plurality of vibration damping devices each having a hard plate attached to the upper and lower end surfaces of the high damping rubber are dispersed 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. An anchor structure for a structure, which is provided.

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