WO2020159107A1 - Dispositif d'isolation sismique - Google Patents

Dispositif d'isolation sismique Download PDF

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Publication number
WO2020159107A1
WO2020159107A1 PCT/KR2020/000574 KR2020000574W WO2020159107A1 WO 2020159107 A1 WO2020159107 A1 WO 2020159107A1 KR 2020000574 W KR2020000574 W KR 2020000574W WO 2020159107 A1 WO2020159107 A1 WO 2020159107A1
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Prior art keywords
flow
plate
flow prevention
seismic
earthquake
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PCT/KR2020/000574
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English (en)
Korean (ko)
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제희문
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제희문
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Publication of WO2020159107A1 publication Critical patent/WO2020159107A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/021—Decoupling of vibrations by means of point-of-contact supports, e.g. ball bearings

Definitions

  • the present invention relates to an isolating device, and more specifically, in the event of an earthquake, the vibration of a structure or equipment installed on the upper part of the isolating device is minimized, and the shaken structure or equipment is returned to the initial position within an early time, resulting in an earthquake. It relates to an isolator that can minimize damage.
  • the phenomenon in which the energy inside the earth comes out to the ground and the ground cracks and shakes is called an earthquake, and the principle of this earthquake is elastic rebound.
  • the strata bend and change shape when they are energized. Then, when the force that cannot be sustained is accumulated, the stratum breaks and becomes a fault, and an earthquake occurs due to the repulsive force to return to the original shape.
  • earthquakes are caused by large forces inside the Earth that, over a long period of time, act on continental movement, seafloor expansion, and mountain range formation.
  • earthquakes occur due to volcanic activity, but in this case, the scale is relatively small.
  • earthquakes may occur artificially by explosives.
  • Earthquakes are divided into tectonic earthquakes, volcanic earthquakes, and implosions or collapse earthquakes, depending on the type and cause of occurrence.
  • the point where the energy that causes this earthquake is generated is called the earthquake focus, and the surface connected vertically from the circle is called the epicenter. Since epicenters are the closest indicators to the epicenter, they suffer the most.
  • Earthquakes can vary in size from small-scale faults with a few centimeters of misalignment to several meters long, and large-scale faults with several millimeters of dislocation.
  • Earthquake damage is mainly caused by the sudden vibration of the ground during the propagation process.
  • the ground acceleration due to a large earthquake may exceed 1 g.
  • the magnitude of the earthquake is expressed in magnitude (M) according to the magnitude of the seismic wave energy.
  • the magnitude of an earthquake increases 25 to 30 times as much energy when one unit increases.
  • the magnitude of earthquakes that can be felt is 2.0 or higher, and earthquakes that cause significant damage are usually 6.0 or higher.
  • the magnitude of an earthquake is a measure of the magnitude of ground vibrations and the resulting damage at a point on the surface. Therefore, even if it is an earthquake of the same size, its magnitude changes depending on the location. The magnitude generally decreases with distance from the epicenter, and its value is related to several factors in addition to scale.
  • intensity and magnitude are used.
  • the scale is an amount related to the wave energy emitted when an earthquake occurs, and is an amount determined by a certain value for a specific earthquake, such as the epicenter of the earthquake, the depth of the epicenter, and the time of occurrence. Normally, when talking about an earthquake, the epicenter, the depth of the epicenter, the time of occurrence and the scale are determined together.
  • seismic intensity is a measure that classifies the magnitude of an earthquake based on the effect of an earthquake, that is, an effect on buildings or terrain. Therefore, for the same earthquake, it has a large value in the vicinity of the epicenter and a small value in the distance.
  • the intensity is generally higher than in shallow soil layers or bedrock areas, and even in insolvent buildings with greater damage than the surroundings, the intensity is recorded.
  • JMA Japanese Meteorological Agency
  • MM United States Modified Mercalli
  • This magnitude class is a measure that determines the strength of a small-scale earthquake according to the degree to which a person responds. When a large-scale earthquake occurs, the intensity of the earthquake is determined according to the damage level of the building.
  • MM progression classes are classified as follows.
  • Seismic intensity 5-Bowls and windows may break, and objects that are not fixed may fall.
  • Jindo 6-Heavy furniture may move, and cracks may occur in the walls of buildings.
  • Jindo 7-Damage can be neglected in well-designed and well-built buildings, but some damage occurs in ordinary buildings, and considerable damage occurs in stale buildings, and the chimney collapses.
  • Jindo 8- Significant damage such as slight damage to specially designed buildings, partial collapse to general buildings, severe damage to unconstructed buildings, collapse of goods, chimneys, pillars, monuments, and bricks.
  • Jindo 10-Most buildings break along with the foundation, severe cracks on the surface, railroad bends and landslides.
  • the human body is difficult to respond to earthquakes at a magnitude of 3 or less, and only sensitive people appear to respond to earthquakes.
  • Prior Art 1 Korean Patent Registration No. 10-0971365
  • the present invention has been devised to solve the above-mentioned problems, and its purpose is to minimize the shaking of structures or equipment installed on the upper part of the seismic isolator in the event of an earthquake, and the shaken structures or equipment may be initialized within an early time. It is to provide a seismic isolation device to return to the position, to minimize the earthquake damage.
  • the flow prevention part and the flow prevention groove are formed symmetrically in the up, down, left and right directions based on the plane of the plate. There are other purposes for providing the device.
  • Another object is to provide a seismic isolator that is equipped with a sensor for detecting the occurrence of an earthquake in the seismic isolator, so that a rapid response to the earthquake can be made.
  • the seismic isolator of the present invention in an isolator installed to reduce earthquake damage,
  • the seismic isolation device The seismic isolation device
  • a steel ball provided in the flow part between the plates constituting the upper and lower parts;
  • the departure-preventing groove is formed between a 1/10 point in the direction of the central portion of the moving part from the position from the position of the third part in the direction of the center of the moving part from the departure-preventing jaw outside the flow part,
  • the upper and lower plates have the same shape of a square shape
  • Each of the upper and lower plates has two flow prevention protrusions and two flow prevention grooves, respectively, and the two flow prevention protrusions are formed to face each other based on the central axis of the plate, and the two flow prevention grooves also form the central axis of the plate. It is formed to face each other as a reference, one of the upper and lower plates is rotated at right angles to the other plate to be coupled,
  • the plate was formed with a grid-like support portion supporting a vertical load of a structure or equipment placed on the isolator, and the support portion was formed to protrude to the same height as the plate.
  • each of the plates constituting the upper and lower portions was characterized in that four flow parts are formed.
  • the flow portion it characterized in that it further comprises a bent portion that is formed to be inclined downward toward the center of the flow portion, and a release preventing jaw formed along the outer circumference of the flow portion.
  • the flow prevention protrusion the flow prevention ball is inserted into the guide groove formed on the plate, the tanji spring elastically supporting the flow prevention ball, and screwed to the guide groove to locate the flow prevention ball. It characterized in that it comprises a first fixing piece to be fixed.
  • the flow prevention portion was characterized in that formed in a portion adjacent to the outside of the plate, the space between the flow portion of the plate and the other flow portion.
  • the flow portion is formed with a diameter of 150 ⁇ 190mm
  • the radius of curvature of the bent portion is characterized in that the radius of curvature is formed of 950 ⁇ 1050mm.
  • a sensor for detecting and transmitting an earthquake is provided on one of the side surfaces of the plate, and the sensor informs the vibration detection unit and an emergency communication network when vibration is detected by the vibration detection unit.
  • the present invention is characterized in that it comprises a notification unit.
  • the seismic isolating device of the present invention when an earthquake occurs, the shaking of structures or equipment installed on the upper part of the seismic is minimized, and the shaken structure or equipment is returned to the initial position within an early time to minimize earthquake damage. It has the effect of making.
  • the flow preventing portion and the flow preventing groove are formed symmetrically in the vertical, horizontal, and horizontal directions based on the plane of the plate. There is.
  • the seismic isolation device is provided with a sensor for detecting the occurrence of an earthquake, it is effective to quickly respond to the earthquake.
  • FIG. 1 is a perspective view of an isolating device of the present invention
  • FIG. 2 is an exploded perspective view of the seismic isolation device of the present invention
  • Figure 3 is an exploded perspective view of the first plate of the present invention
  • FIG. 5 is a cross-sectional view taken along line A-A' in FIG. 1;
  • FIG. 1 is a perspective view of the isolator 10 of the present invention
  • Figure 2 is an exploded perspective view of the isolator 10 of the present invention
  • Figure 3 is an exploded perspective view of the plate 100 of the present invention
  • Figure 4 is a figure It is a sectional view on line A-A' of 1.
  • the seismic isolator 10 of the present invention includes a plate 100 formed on upper and lower portions, a flow portion 120 formed on the plate 100, the upper portion and It comprises a steel ball 200 provided in the flow portion 120 between the plate 100 formed at the bottom, and a sensor 300 provided on one side of the seismic isolator 10.
  • the plate 100 may be divided into an upper plate 101 and a lower plate 102, depending on the position formed in the seismic isolator 10, the upper plate 101 and the lower plate 102 Of course, it is formed of the same configuration.
  • the upper plate 101 is made so that the structure or equipment is not displaced horizontally in the event of an earthquake by placing a structure or equipment, and the lower plate 102 is fixed to the base of the ground or the like, and when an earthquake occurs, an earthquake shock wave It is made to move horizontally.
  • the structure or equipment provided on the upper part of the upper plate 102 may be applied with various structures or equipment that may be damaged due to the occurrence of an earthquake, including expensive equipment such as information/communication equipment, computing equipment, and power equipment. Can.
  • the plate 100 is provided with a support portion 110 that is formed to project at regular intervals in a grid shape, and the support portion 110 is formed on one entire surface of the plate 100.
  • the support 110 is preferably made to protrude the same as the height of the plate 100 so as to sufficiently support the vertical load of the structure or equipment placed on the seismic isolator (10).
  • the plate 100 has a plurality of flow parts 120 formed in a constant pattern based on the center of the plate 100, and the flow part 120 Is a bent portion 123 that is formed to be inclined downward toward the center of the flow portion 120, a departure prevention jaw 121 formed along an outer circumference of the flow portion 120, and an inner circumference of the flow portion 120 It comprises a separation prevention groove 122 formed along.
  • the departure preventing jaw 121 is formed on the outside of the flow portion 120, and serves to prevent the steel ball 200, which will be described later, from being separated from the flow portion 120.
  • the departure preventing groove 122 is formed inside the flow portion 10, so that the steel ball 200 can flow freely within the flow portion 120, the steel ball 200 is strong When the radius of the flow portion 120 flows by a large earthquake, the flow of the steel ball 200 is primarily attenuated by the escape prevention groove 122, and the flow flowed from the flow portion 120 The steel ball is to ensure that the flow is finally limited in the departure preventing groove 122 to prevent departure from the departure preventing groove 122.
  • the escape preventing groove 122 may be formed in plural in the flow part 120, depending on the weight of the structure or equipment mounted on the seismic isolation device and the design conditions of the seismic isolation device ( 122) may be formed in a variety of positions and numbers, the departure preventing groove 122 is from the position that is 1/3 point toward the center of the flow portion 120 from the release prevention jaw 121 outside the flow portion It is most preferable to form between the 1/10 points in the direction of the central portion of the flow portion 120 from the separation preventing jaw 121.
  • the departure-preventing groove 122 when the steel ball 200 flowing from the flow part 120 flows to the departure-preventing jaw 121 by a large earthquake, the steel ball 200
  • the steel ball 200 is prevented from being detached by making the steel ball 200 to be attenuated second from the detachment preventing member 121 after flowing a certain distance again while the flow of the first is attenuated by the detachment preventing groove 122. It is to prevent the departure from the departure prevention jaw 121 over.
  • the steel ball 200 can flow only within the departure preventing groove 122.
  • the seismic device plays a role to minimize the shaking of structures or equipment installed on the upper part of the seismic isolator.
  • the seismic isolator 10 of the present invention by forming the escape preventing groove 122, the seismic isolator even in the case of an earthquake with a high intensity that allows the steel ball 200 to escape the escape prevention protrusion 121 By maintaining the function of, it serves to prevent the structure or equipment installed on the upper part of the seismic isolation device from falling over.
  • the plate 100 is made of a square plane, four flow parts 120 are formed on the plane, which is the structure or equipment installed on the upper part of the seismic isolator when an earthquake occurs, such as structures or equipment This is to prevent damage to structures or equipment by preventing collision with other structures or equipment by minimizing the shaking range.
  • two flow prevention protrusions 130 and two flow prevention grooves 140 are formed on the upper plate 101 and the lower plate 102, respectively, and the two flow prevention protrusions are the upper plate 101 or It is formed to face each other based on the central axis of the lower plate 102, and the two flow prevention grooves are also formed to face each other based on the central axis of the upper plate 101 or the lower plate 102.
  • the flow prevention protrusion 130 and the flow prevention groove 140 are preferably formed in a space between the flow portion 120 and the other flow portion 120, which is the middle portion of the outer surface of the plane of the plate 100. Do.
  • the flow prevention protrusion 130 includes a flow prevention ball 133 inserted into a guide groove 131 formed in the plate 100, and a tange spring 132 elastically supporting the flow prevention ball 133.
  • a first fixing piece 134 for fixing the position of the flow prevention ball 133 the flow prevention groove 140 is the guide
  • the second fixing piece 141 which is provided with a ball guide part 142 in the groove 131, is made of a structure that is coupled by a screw 135.
  • the flow prevention ball 133 of the flow prevention protrusion 130 is formed to protrude at regular intervals on the surface of the plate 100, and the ball guide portion 142 of the flow prevention groove 140 is the It is formed to contact the protruding portion of the flow prevention ball 133, the flow prevention protrusion 130 and the flow prevention groove 140 are combined with each other to form a flow prevention portion 150.
  • the flow preventing protrusion 130 and the flow preventing groove 140 are formed to be coupled to each other up and down.
  • the flow prevention portion 150 is formed.
  • the flow prevention protrusions 130 and the flow prevention grooves 140 are formed by combining up and down, and the flow prevention parts 150 are formed in one seismic isolator 10.
  • the seismic isolator 10 will not return to the initial position, but the isolator 10
  • the plate of the isolator 10 made of a square as in the present invention In the case of (100), it is preferable to form a flow prevention protrusion 130 and a flow prevention groove 140 in a space between the flow portion 120 and the flow portion 120, which are central portions of each outer surface.
  • the diameters of the flow prevention protrusions 130 and the flow prevention grooves 140 are as large as possible. It is preferable to form, the plate 100 made of a square as in the present invention, the flow prevention protrusion 130 and the flow prevention groove 140 and the flow portion 120 that is the central portion of each outer surface of the plate 100 and the flow.
  • the diameter of the flow prevention protrusion 130 and the flow prevention groove 140 can be formed to the maximum size, the flow portion 120 and the flow portion, which are the central portions of each outer surface, can be formed. It is desirable to form the flow prevention portion 130 and the flow prevention groove 140 in the space between the 120.
  • the flow prevention protrusion 130 is formed at the center of the outer surface of the upper and lower surfaces
  • the flow prevention groove 140 is a plate ( 100) to be formed at the center of the left and right outer surfaces
  • the upper flow prevention protrusion 130 and the lower flow prevention protrusion 130 are formed to face each other based on the central horizontal axis of the plate
  • the left flow prevention groove ( 140) and the right flow prevention groove 140 are also formed to face each other based on the central vertical axis of the plate.
  • the flow prevention protrusion 130 When the two plates 100 are combined with each other to form an isolator, when one plate is used as the lower plate and the other plate is rotated to be perpendicular to the lower plate, the flow prevention protrusion 130 ) And the flow prevention groove 140 is coupled to each other to configure the flow prevention portion.
  • the upper plate and the lower plate are not separately manufactured, and the upper plate and the lower plate are manufactured in the same manner, thereby reducing the cost associated with manufacturing, and when carrying for construction of the seismic isolator 10
  • the plate and the lower plate can be transported to the construction site without distinction, and at the construction site, there is no need to separate and combine the upper plate and the lower plate, thereby shortening the construction time.
  • the flow-preventing protrusions formed on each plate are made to be coupled to the flow-preventing grooves 140 of each, and each of the flow-preventing grooves 140 is provided with each of the flow-preventing protrusions. It is made to be coupled to (130), by the flow prevention portion formed by the flow prevention protrusion 130 and the flow prevention groove 140, the seismic isolation device 10 that flows when an earthquake occurs returns to the initial position It has the advantage of being able to be shortened and allowing each flowed plate 100 to be accurately returned to its initial position.
  • the plate 100 is preferably formed in a square, the size may be variously formed according to the size of the structure or equipment mounted on the isolator 10.
  • the plate 100 is provided with four flow parts 120, wherein the diameter of the flow part 120 is preferably formed to a diameter of 150 ⁇ 190mm according to the size of the plate 100, the When the diameter of the moving part 120 is less than 150mm, the vibration of structures or equipment caused by earthquakes of magnitude 7 or higher cannot be sufficiently accommodated, and the diameter of the moving part 120 exceeds 190mm This is because interference between each moving part 120 may occur due to the maximum size limitation of the plate 100 manufactured to be applied to a general structure or equipment.
  • the steel ball 200 is provided between each of the moving parts 120 formed in the seismic isolator 10, so that each plate 100 is spaced at regular intervals so that it flows when an earthquake occurs Is done.
  • the sensor 300 is provided at one end of the plate 100, when vibration is detected in the seismic isolator 10, that is, when an earthquake or the like is detected, the emergency communication network to be notified so as to be made It is composed.
  • the senor 300 includes a vibration sensing unit (not shown) and a notification unit (not shown) that notifies the emergency communication network when vibration is detected by the vibration sensing unit.
  • bent portion 123 of the flow portion 120 will be described in more detail with reference to FIG. 5.
  • steel balls 200 are provided at each of the bent portions 123 of the plate 100 facing up and down, and the steel balls 200 are within the flow portion 120. It is made to be displaced, so that each plate 100 flows only within a certain range.
  • the degree of curvature of the bent portion 123 that is, the radius of curvature R is 950 to 1050 mm, preferably 1000 mm.
  • the diameter of the steel ball flowing in the bent portion of the flow portion and the flow prevention ball may be limited.
  • the steel ball and the flow prevention ball are involved in the separation distance between the plate provided at the bottom and the plate provided at the top.
  • the separation distance between each plate increases, the structure or equipment increases as the flow increases. If the stable support is not achieved, and the separation distance between each of the plates is small, the interference between each of the plates is generated, so that the role of the seismic isolator cannot be properly performed.
  • the size of the flow prevention ball and the steel ball is formed according to the separation distance between each plate and the radius of the bent portion, and when the radius of curvature of the flow portion is 1000 mmm, the flow prevention ball and steel Most preferably, the balls are formed in a ratio of 1:17/16.
  • a 220 kg isolator was fixed to the vibration table with a bolt, and then a 220 kg rack was installed on the upper part of the isolator 10.
  • Celesco MT2A-30E-9-10 K-MI was used as the Cable-Extension Position Transducer.
  • the seismic test was conducted with a 3 axis (x,y,z) simultaneous random signal, and a strength of 0.6g was added using a Kobe earthquake wave, and the seismic test was performed until the impact signal of the seismic isolator 10 was generated. Then, the time required for the seismic isolation device to return to the initial position, and the change in the initial position of the seismic isolation device and the return position after the earthquake test were measured.
  • the flow-preventing portions formed by combining the flow-preventing protrusions and the flow-preventing grooves on the plate were formed symmetrically, so that four flow-preventing portions were formed in one isolating device.
  • Example 1 Comparative Example 1 Comparative Example 2 Number of flow prevention parts 4 2 none Return Time (Sec) 0.98 20 40 Change of return position Match initial position 10mm difference in diagonal direction 50mm difference in the left and right direction
  • the flow prevention portion reduces the movement of the plates provided at the upper and lower portions, so that the return to the initial position is made faster.
  • Comparative Example 1 and Comparative Example 2 have a difference of 10 mm diagonally and 50 mm diagonally. It appears, which is judged to be due to the fixed upper and lower left and right directions of the plate positioned at the top and the plate positioned at the bottom by the flow prevention portion and the flow prevention groove provided at the top, bottom, left and right.
  • the test method was the same as in Example 1, and only the strength of the seismic test was added to 1.3 g to measure the displacement in the x and y directions of the upper and lower plates of the seismic isolator according to the radius of curvature.
  • the radius of curvature of the curvature portion of the moving portion is formed to be 950 to 1050 mm, so that the displacement of the x-axis and y-axis is within 150 mm, and smooth return is achieved.
  • the seismic isolator 10 of the present invention when an earthquake occurs, the shaking of structures or equipment installed on the upper part of the seismic isolator 10 is minimized, and the shaken structure or equipment is returned to the initial position within an early time, It has the effect of minimizing earthquake damage.
  • the seismic isolation device 10 is provided with a detection sensor 300 for detecting the occurrence of an earthquake, it is effective to quickly respond to the earthquake.
  • the seismic isolating device ensures that the shaking of structures or equipment installed on the upper part of the seismic is minimized in the event of an earthquake, and that the shaken structures or equipment return to the initial position within an early time, thereby minimizing earthquake damage. This can greatly contribute to providing the effect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

Dispositif d'isolation sismique et, plus spécifiquement, dispositif d'isolation sismique qui, lorsqu'un tremblement de terre se produit, peut réduire au minimum les dommages dus au tremblement de terre en réduisant au minimum la secousse d'une structure ou d'un équipement installé sur le dispositif d'isolation sismique et en ramenant rapidement la structure ou l'équipement secoué à sa position initiale. À cet effet, le dispositif d'isolation sismique de la présente invention comprend : des plaques disposées en haut et en bas du dispositif d'isolation sismique, respectivement ; des billes d'acier disposées entre les plaques ; et un capteur disposé sur un côté du dispositif d'isolation sismique, les plaques étant accouplées entre elles tout en se faisant face dans la direction perpendiculaire.
PCT/KR2020/000574 2019-02-01 2020-01-13 Dispositif d'isolation sismique WO2020159107A1 (fr)

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KR10-2019-0013949 2019-02-01
KR1020190013949A KR101972735B1 (ko) 2019-02-01 2019-02-01 면진장치

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KR101972735B1 (ko) * 2019-02-01 2019-04-25 제희문 면진장치
KR102061150B1 (ko) * 2019-06-04 2019-12-31 주식회사 에스앤와이시스템 최소 높이 구조의 면진 장치
KR102106502B1 (ko) 2019-08-21 2020-05-06 명지대학교 산학협력단 면진 성능을 가진 한옥의 주두 및 그 설치방법
KR102091480B1 (ko) 2019-12-30 2020-03-23 (주)다우텍 메카니컬씰을 갖는 내구성 강화형 면진장치
KR102231115B1 (ko) 2020-09-11 2021-03-24 주식회사 세움이앤씨 건축사사무소 내진기능이 강화된 정보통신 장비 보관 함체
KR102607721B1 (ko) 2020-12-01 2023-11-29 주식회사 에스알이엔지 자율 구동형 내진시스템

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Publication number Priority date Publication date Assignee Title
JPH11315885A (ja) * 1998-05-08 1999-11-16 Toyo Tire & Rubber Co Ltd 免震装置
JP2006249833A (ja) * 2005-03-11 2006-09-21 Matsushita Electric Works Ltd 免震効果評価装置、振動測定システム、制御システム
KR100971365B1 (ko) * 2010-06-04 2010-07-20 제희문 일정 진도 이상의 지진에 응답하는 면진 장치
JP2010185241A (ja) * 2009-02-13 2010-08-26 Hitachi Metals Techno Ltd 免震装置
JP2014129829A (ja) * 2012-12-28 2014-07-10 Hayashi Bussan Co Ltd 免震部材
KR101972735B1 (ko) * 2019-02-01 2019-04-25 제희문 면진장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11315885A (ja) * 1998-05-08 1999-11-16 Toyo Tire & Rubber Co Ltd 免震装置
JP2006249833A (ja) * 2005-03-11 2006-09-21 Matsushita Electric Works Ltd 免震効果評価装置、振動測定システム、制御システム
JP2010185241A (ja) * 2009-02-13 2010-08-26 Hitachi Metals Techno Ltd 免震装置
KR100971365B1 (ko) * 2010-06-04 2010-07-20 제희문 일정 진도 이상의 지진에 응답하는 면진 장치
JP2014129829A (ja) * 2012-12-28 2014-07-10 Hayashi Bussan Co Ltd 免震部材
KR101972735B1 (ko) * 2019-02-01 2019-04-25 제희문 면진장치

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