WO2011152690A2 - Dispositif d'isolation sismique adapté à un tremblement de terre ayant au moins une certaine intensité - Google Patents

Dispositif d'isolation sismique adapté à un tremblement de terre ayant au moins une certaine intensité Download PDF

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Publication number
WO2011152690A2
WO2011152690A2 PCT/KR2011/004105 KR2011004105W WO2011152690A2 WO 2011152690 A2 WO2011152690 A2 WO 2011152690A2 KR 2011004105 W KR2011004105 W KR 2011004105W WO 2011152690 A2 WO2011152690 A2 WO 2011152690A2
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WO
WIPO (PCT)
Prior art keywords
earthquake
flow
magnitude
lower plate
plate
Prior art date
Application number
PCT/KR2011/004105
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English (en)
Korean (ko)
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WO2011152690A3 (fr
Inventor
제희문
Original Assignee
Je Hee Mun
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Filing date
Publication date
Application filed by Je Hee Mun filed Critical Je Hee Mun
Publication of WO2011152690A2 publication Critical patent/WO2011152690A2/fr
Publication of WO2011152690A3 publication Critical patent/WO2011152690A3/fr

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
    • 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 a seismic isolator, and more particularly, to a seismic isolator that responds to an earthquake of a certain magnitude or more that can safely protect a structure or equipment from an earthquake.
  • an earthquake refers to a phenomenon in which the energy inside the earth comes to the surface and the ground is shaken and shaken.
  • the earthquake is classified into a structural earthquake, volcanic earthquake and sinking earthquake according to the form and cause of occurrence.
  • Magnitude and intensity are used as a measure of the magnitude of the earthquake.
  • the scale is related to the wave energy emitted when an earthquake occurs, and is a quantity determined for a specific earthquake.
  • magnitude is the magnitude of the earthquake based on its impact on buildings and terrain, and the United States' modified Mercalli (MM), which divided the earthquakes into 12 classes as a representative criterion for classifying the magnitude. There is a progression class.
  • the intensity less than 3 had little effect on the installation state of the structure or equipment, and when the intensity exceeded 4, the installation state of the structure or equipment was generated.
  • the conventional seismic isolation device disclosed in Japanese Patent Laid-Open No. 10-220066 has a lower support plate 20 fixed to a base and having a constant inclined surface 22 on an inner side thereof, and an upper support plate fixed to a structure. 30, a steel ball 40 and a lower support plate 20 and an upper support plate which are installed between the lower support plate 20 and the upper support plate 30 to flow when the lower support plate 20 and the upper support plate 30 are horizontally displaced. 30 or elastic rubbers 21 and 31 for setting a coefficient of friction on one surface of the steel ball 40.
  • the seismic isolation device as described above is provided with an inclined surface 22 only in the lower support plate 20, so that the return to the initial position is slow when an earthquake occurs, and the upper support plate is easy even in a weak earthquake (an earthquake of magnitude 3 or less in the MM magnitude class). There is a problem that the horizontal movement of (30) is made.
  • An earthquake isolation device responding to an earthquake of a certain magnitude or more includes: a lower plate on which a plurality of lower flow units are formed; An upper plate disposed on the lower plate and having a plurality of upper flow units corresponding to the lower flow units; A steel ball interposed between the lower flow part and the upper flow part to allow horizontal movement of the lower plate and the upper plate;
  • the technical characteristics of the upper plate is configured to include a weak flow prevention unit for preventing the horizontal movement of the lower plate by the earthquake of weak magnitude.
  • the horizontal movement is not only smoothly made during the earthquake, but also by the weakly moving flow prevention part and the steel ball groove, the structure or the equipment is stably protected from the earthquake by operating only at an earthquake of a certain magnitude or more. can do.
  • the lower plate is made of a non-conductor can prevent the leakage current generated by the earthquake to flow into the structure or equipment placed on the top of the seismic isolation device, it is possible to easily adjust the elastic force of the spring through the elastic adjustment bolt, the present invention Appropriate and adjustable to carry out horizontal movements relative to progress class 3.
  • FIG. 1 is a cross-sectional view showing a conventional seismic isolator
  • FIG. 2 is a perspective view of a seismic isolator in response to an earthquake of a certain magnitude or more according to the present invention
  • Figure 3 is an exploded cross-sectional view showing the seismic isolator in response to an earthquake of a certain magnitude or more according to the present invention
  • Figure 4 is a perspective view showing a weak vibration prevention part of the seismic isolator in response to an earthquake of a certain magnitude or more according to the present invention
  • Figure 5 is a cross-sectional view showing another embodiment of the weak vibration prevention unit of the seismic isolator in response to an earthquake of a certain magnitude or more according to the present invention
  • 6 and 7 is an operation state diagram of the base isolation device in response to an earthquake of a certain magnitude or more according to the present invention.
  • the seismic isolator in response to an earthquake of a certain magnitude or more comprises a lower plate (100); An upper plate 200 disposed above the lower plate 100; A steel ball 300 provided between the lower plate 100 and the upper plate 200; It is configured to include a weak vibration prevention unit 400 provided between the lower plate 100 and the upper plate 200.
  • the lower plate 100 is fixed at the installation place and is horizontally moved by the shock wave when an earthquake occurs.
  • Upper and lower left and right four lower flow portion 110 is formed on the upper surface of the lower plate 100, the number and arrangement of the lower flow portion 110 can be changed as necessary.
  • the upper plate 200 has a shape symmetrical with the lower plate 100, even if the lower plate 100 is horizontally moved due to the occurrence of an earthquake more than a certain magnitude is not interlocked with this structure or equipment installed on the upper surface The state can be kept stable.
  • a plurality of upper flow portions 210 corresponding to the lower flow portions 110 of the lower plate 100 are formed on the lower surface of the upper plate 200.
  • the lower flow part 110 of the lower plate 100 and the upper flow part 210 of the upper plate 200 have a concave shape in which a predetermined inclination is formed toward the center thereof, thus returning to an initial state when an earthquake occurs.
  • a predetermined inclination is formed toward the center thereof, thus returning to an initial state when an earthquake occurs.
  • the vertical movement displacement of the upper plate 200 according to the horizontal movement of the lower plate 100 is also made small.
  • hemispherical steel ball grooves 111 and 211 are formed at the center of the lower flow part 110 and the upper flow part 210 to insert a portion of the steel ball 300. Not only maintains the installation state of the 100 and the upper plate 200 but also serves to limit the horizontal movement with the weak vibration prevention unit 400 when a weak earthquake (weak progress) occurs.
  • the outer periphery of the lower flow section 110 and the upper flow section 210, the separation prevention jaw (120, 220) of a predetermined height is formed, respectively, the departure prevention jaw (120, 220) is a steel ball 300 is the lower flow section 110 And serves to prevent the outflow of the upper flow portion 220 to the outside.
  • the lower plate 100 and the upper plate 200 of the present invention is manufactured in the same shape, it can be produced through a single mold, and thus the lower plate 100 and the lower plate 200 is not molded separately It is easy to manufacture and can reduce the mold manufacturing cost.
  • the lower plate 100 and the upper plate 200 are made of a non-conductor, in particular, a plastic material that is easy to manufacture a mold, it is preferable to prevent the secondary damage of the equipment due to the leakage current during the earthquake. .
  • the steel ball 300 is interposed between the lower flow portion 110 of the lower plate 100 and the upper flow portion 220 of the upper plate 200, the lower plate 100 and the upper plate 200 constant Rolling at the time of earthquake in the spaced apart state to enable the horizontal movement of the lower plate 100 and the upper plate 200 mutually.
  • the weak flow prevention unit 400 prevents the upper plate 200 from being horizontally moved with respect to the lower plate 100 when the lower plate 100 moves horizontally due to an earthquake (weak progress) with a weak magnitude.
  • the weak vibration prevention unit 400 is provided two at regular intervals, the number and arrangement can be changed as necessary.
  • the weak flow prevention unit 400 of the present invention is not horizontally moved against a weak earthquake, but horizontally moved at a higher magnitude, wherein the selection criteria for the weak earthquake is the US Modified Mercalli (MM) magnitude rank.
  • the MM progress class is classified into 12 classes according to the degree of human response and the damage of buildings during an earthquake.
  • Table 1 shows the classification criteria table of the MM progress class.
  • the present invention provides the weak vibration prevention unit 400.
  • the seismic isolator is not operated below the magnitude 3, and the seismic isolator is operated only at the magnitude 4 or higher which may affect the structure or equipment.
  • the weak flow prevention unit 400 is a groove 102 formed in the lower plate 100; A spring 410 inserted into the recess 102; A fixing piece 430 coupled to an upper portion of the recess 102 and having a support hole 431 formed therein; A flow preventing ball 420 interposed between the spring 410 and the fixing piece 430, the upper end of which protrudes to the outside of the support hole 431; Is formed on the upper plate 200 is made of a flow preventing groove 401 is inserted into the flow preventing ball 420.
  • Groove 102 has a width and depth enough to accommodate the spring 410, the spring 410 can be replaced with another type of elastic body that can provide a certain elastic force.
  • the fixing piece 430 is preferably coupled to the screw 440 in order to facilitate replacement when the spring 410 or the ball preventing ball 420, the fixing piece 430 is stable in the installation state It is seated in the fixing piece seating groove 101 formed in the lower plate 100 to maintain.
  • the weak flow prevention portion 400 is involved in the elastic force of the spring 410 and the depth of the flow preventing groove 401 into which the flow preventing ball 420 is inserted.
  • the elastic adjustment bolt 411 is coupled to the bottom surface of the groove 102 to flow through the rotation operation.
  • the seismic isolator is shown in Figure 6 when the horizontal movement of the lower plate 100, the weak vibration flow prevention unit 400 and the steel ball groove
  • the lower plate 100 and the upper plate 200 are constrained to each other by (111, 211), and do not move horizontally to each other.
  • the lower plate 100 is horizontal with the floor (or the ground) due to a weak earthquake.
  • the upper plate 200 is moved horizontally.
  • the flow prevention ball 420 of the weak flow prevention part 400 is inserted into the flow preventing groove 401, and formed in the lower flow part 110 and the upper flow part 210, respectively.
  • the steel ball grooves 111 and 211 are maintained in a state where the steel ball 300 is inserted.
  • the lower plate 100 of the present invention is horizontally moved in response to the horizontal movement of the floor (or ground) by the earthquake, Rapid and strong horizontal movement of the lower plate 100 occurs due to the seismic force, so that the flow preventing ball 420 of the weak vibration prevention part 400 is separated from the flow preventing groove 401, and at the same time, the steel ball groove 111, As the restraint of the steel ball 300 inserted in the 211) is released, the horizontal movement strength of the lower plate 100 is reduced and transmitted relative to the upper plate 200, in addition to the weight of the equipment and the inertia of the upper plate and the equipment. According to the law, the horizontal movement is minimized, so the horizontal movement due to the seismic force is minimized.
  • the horizontal movement range is limited and at the same time the steel ball 300 The lower flow portion 110 and the upper flow portion 210 is prevented from being separated to the outside.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (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

La présente invention concerne un dispositif d'isolation sismique adapté à un tremblement de terre ayant une certaine intensité, le dispositif d'isolation sismique comprenant : une plaque inférieure (100) sur laquelle une pluralité d'unités mobiles inférieures (110) est formée ; une plaque supérieure (200) disposée sur la plaque inférieure (100), sur laquelle une pluralité d'unités mobiles supérieures (210) correspondant aux unités mobiles inférieures (110) est formée ; des billes d'acier (300) en contact avec les unités mobiles inférieures (110) et les unités mobiles supérieures (210) et intercalées entre celles-ci, permettant à la plaque inférieure (100) et à la plaque supérieure (200) de se déplacer dans une direction horizontale l'une par rapport à l'autre ; et des unités de prévention de déplacement dû à un tremblement de terre de faible intensité (400) servant à empêcher la plaque supérieure (200) de se déplacer horizontalement sur la plaque inférieure (100) sous l'effet d'un tremblement de terre de faible intensité. L'invention permet ainsi de protéger de manière stable l'état de l'installation de structures ou d'équipements, entre autres, lors d'un tremblement de terre.
PCT/KR2011/004105 2010-06-04 2011-06-03 Dispositif d'isolation sismique adapté à un tremblement de terre ayant au moins une certaine intensité WO2011152690A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0053064 2010-06-04
KR1020100053064A KR100971365B1 (ko) 2010-06-04 2010-06-04 일정 진도 이상의 지진에 응답하는 면진 장치

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WO2011152690A2 true WO2011152690A2 (fr) 2011-12-08
WO2011152690A3 WO2011152690A3 (fr) 2012-05-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3065770A1 (fr) * 2017-04-27 2018-11-02 Ets.Santi Yves Plot coherent antivibratoire a bille
CN113216434A (zh) * 2021-04-27 2021-08-06 广州大学 一种解耦式振震控制装置
CN113374107A (zh) * 2021-06-30 2021-09-10 广州大学 一种变刚度摩擦摆支座
WO2022119029A1 (fr) * 2020-12-01 2022-06-09 주식회사 에스알이엔지 Système antisismique autonome

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261781B1 (ko) 2012-12-14 2013-05-07 알.제이. 왓슨, 아이앤씨. 다중 슬라이딩 면진장치
KR20160045515A (ko) 2014-10-18 2016-04-27 장성철 볼베어링의 이탈 방지 구조물을 구비한 볼베어링 방식의 면진장치
KR101800871B1 (ko) * 2017-02-24 2017-11-24 세종전기공업 주식회사 내진 서포트
KR101972735B1 (ko) 2019-02-01 2019-04-25 제희문 면진장치
KR102038804B1 (ko) * 2019-03-13 2019-11-26 제희문 이탈방지홈이 형성된 면진장치 및 그 면진장치의 조립구조체
KR102008248B1 (ko) * 2019-03-15 2019-08-07 (주)파워엔텍 부전도 면진 장치
KR102231115B1 (ko) 2020-09-11 2021-03-24 주식회사 세움이앤씨 건축사사무소 내진기능이 강화된 정보통신 장비 보관 함체
KR102263376B1 (ko) 2020-10-13 2021-06-10 주식회사 에스앤와이시스템 볼캐스터를 구비한 최소높이 구조의 면진장치
WO2022270745A1 (fr) * 2021-06-25 2022-12-29 삼성전자주식회사 Étage de déplacement d'aliments et robot de service le comprenant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003253908A (ja) * 2002-02-27 2003-09-10 Kenjiro Ogata 減衰ダンパー
JP2007285364A (ja) * 2006-04-13 2007-11-01 Seiji Yoshioka 免震テーブル
JP2008019941A (ja) * 2006-07-12 2008-01-31 Ntn Corp 免震装置
JP2009079718A (ja) * 2007-09-26 2009-04-16 Kanazawa Seisakusho:Kk 制震装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003253908A (ja) * 2002-02-27 2003-09-10 Kenjiro Ogata 減衰ダンパー
JP2007285364A (ja) * 2006-04-13 2007-11-01 Seiji Yoshioka 免震テーブル
JP2008019941A (ja) * 2006-07-12 2008-01-31 Ntn Corp 免震装置
JP2009079718A (ja) * 2007-09-26 2009-04-16 Kanazawa Seisakusho:Kk 制震装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3065770A1 (fr) * 2017-04-27 2018-11-02 Ets.Santi Yves Plot coherent antivibratoire a bille
WO2022119029A1 (fr) * 2020-12-01 2022-06-09 주식회사 에스알이엔지 Système antisismique autonome
CN113216434A (zh) * 2021-04-27 2021-08-06 广州大学 一种解耦式振震控制装置
CN113374107A (zh) * 2021-06-30 2021-09-10 广州大学 一种变刚度摩擦摆支座
CN113374107B (zh) * 2021-06-30 2024-05-24 广州大学 一种变刚度摩擦摆支座

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WO2011152690A3 (fr) 2012-05-03
KR100971365B1 (ko) 2010-07-20

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