WO1995023267A1 - Appareil de protection de structures, d'immeubles ou autres contre les seismes - Google Patents

Appareil de protection de structures, d'immeubles ou autres contre les seismes Download PDF

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Publication number
WO1995023267A1
WO1995023267A1 PCT/NL1995/000075 NL9500075W WO9523267A1 WO 1995023267 A1 WO1995023267 A1 WO 1995023267A1 NL 9500075 W NL9500075 W NL 9500075W WO 9523267 A1 WO9523267 A1 WO 9523267A1
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WO
WIPO (PCT)
Prior art keywords
parts
roller
displacement
rollers
devices
Prior art date
Application number
PCT/NL1995/000075
Other languages
English (en)
Inventor
Wilhelmus Adrianus Van Parera
Original Assignee
Wilhelmus Adrianus Van Parera
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilhelmus Adrianus Van Parera filed Critical Wilhelmus Adrianus Van Parera
Publication of WO1995023267A1 publication Critical patent/WO1995023267A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to an apparatus for protecting structures, constructions and the like against earthquakes, comprising at least a support having a bottom part, a top part disposed above the bottom part and horizontally movable in relation thereto, on which the greater part of the structure rests, and a displacement mechanism disposed between the bottom and top parts, allowing a controlled relative displacement of the bottom and top parts, in such a way, that a relative horizontal displacement of the bottom and top parts causes a vertical displacement of one of said parts, which is counteracted by a resistance device- Earthquakes cause constructional damage to structures in at least two ways.
  • the horizontal movement of the ground, and hence of the foundation of the structure in relation to the structure itself gives rise to damaging shear forces in the construction. These shear forces can crack concrete or stone, buckle vertical supports, and completely undermine the constructural integrity of the structure.
  • the second cause of damage to structures is the fact that the rhythmic movement of the ground during an earthquake can induce resonant oscillations of the structure. These resonant oscillations prolong and magnify the destructive effects of the earthquake and add to the damage to the structure.
  • This apparatus comprises a vertical displacement mechanism consisting of four legs fitted with knees. In the intermediate position, the knees of all four legs lean against the vertical inner wall of a housing. In the case of a lateral displacement of the interconnected upper ends of the legs, the knees of the legs extend and a spring at the lower end of the legs is compressed. As a result of this, the horizontal force, after having been converted into a vertical movement, is absorbed, which provides an effective protection for the supported structure.
  • the present invention aims to provide an apparatus of the type mentioned in the introduction, which is further simplified and which can be manufactured more economically.
  • the apparatus according to the invention is characterized in that the displacement mechanism comprises a plurality of roller-shaped devices, the shape of these devices and/or the top and/or the bottom part being such that a rolling movement of the roller-shaped devices from an intermediate position causes a vertical displacement of the part fitted with the resistance device.
  • roller-shaped devices which allow a relative horizontal displacement of the top and bottom parts, permits a very compact construction in upward direction.
  • the apparatus can be easily dimensioned for high loads, without this leading to an excessive increase in costs or unmanageable dimensions of the construction.
  • the resistance devices may consist of mechanical springs, e.g. very strong Belleville springs. Because of the low number of movable parts, the risk of defects is very small, as a result of which the operation will be reliable.
  • the displacement mechanism comprises an intermediate part and that the roller-shaped devices consist of rollers which are disposed above and below the intermediate part, the rollers between the bottom and intermediate parts being placed essentially perpendicularly to the rollers between the top and intermediate parts.
  • the rollers confer a high load-bearing capacity to the apparatus, while each pair of rollers provides a stable support.
  • the vertical displacement could be realized by using rollers with an oval cross-section, but the most stable construction is obtained when circle-cylindrical roller-shaped devices are used, and when the top, intermediate and bottom parts comprise running surfaces with recesses in which the roller-shaped devices concerned are located in the intermediate position.
  • the invention will hereinafter be explained with reference to the drawings, which represent an embodiment of the apparatus according to the invention.
  • Figure 1 is a view of a bridge constituting the structure fitted with the embodiment of the apparatus according to the invention.
  • Figure 2 is an enlarged perspective and highly schematic view of detail II in Figure 1 which shows the apparatus according to the invention.
  • FIGa, 3b illustrate the operation of the apparatus according to the invention.
  • Figure 1 illustrates the incorporation of the supports 1 of the apparatus according to the invention in a bridge 2 which in this case constitutes the structure which is protected against earthquakes by the apparatus.
  • the invention can also be used with various other types of structures, such as other public works and buildings and the like, and also with constructions, such as auxiliary generators, computer equipment, and other more or less vulnerable objects, e.g. large works of art.
  • the apparatus is installed at a high level of the piers 3 of the bridge 2, so that only the superstructure 4 is supported by the apparatus. It is of course also possible to place the supports 1 of the apparatus under the piers 3. For each particular case, the most favourable position can be chosen.
  • FIG. 2 shows one of the supports 1.
  • the support 1 comprises a housing 5, in which a plate-shaped bottom part 6 is incorporated, which is supported by the bottom of the housing 5 through very strong springs 7, which have to be strong enough to support the weight of the superstructure 4 jointly in all supports 1.
  • the support 1 further comprises a plate-shaped top part 8 and an intermediate part 9.
  • the intermediate part 9 rests on the bottom part 6 through two parallel horizontally placed circle-cylindric rollers 10, while the top part 8 rest on the intermediate part 9 through two similar rollers 11.
  • the running or contact surfaces, through which the bottom part 6, the top part 8 and the intermediate part 9 are in contact with the rollers 10, 11, have longitudinal cavities 12 in which the rollers 10, 11 rest in a stable intermediate position, as is the case for the rollers 11 between the top part 8 and the intermediate part 9 in Figure 2.
  • the intermediate part 9 can move in one direction essentially horizontally in relation to the bottom part 6 with the aid of the rollers 10 (see Figure 2) , while the top part 8 can move perpendicularly thereto in relation to the intermediate part 9 with the aid of the rollers 11.
  • the top part 8 can move in any horizontal direction in relation to the bottom part 6.
  • each pier 3 and each housing 5 will rock in horizontal direction with great accelerations. Due to the great mass of the superstructure 4 of the bridge connected to the top part 8, this will resist accelerations. If the magnitude of the mass supported by the support 1 is g, then a maximum effort of 0.04 x g will be exerted on the superstructure 4 in the rolling direction of the rollers 10 or 11 during the movement of the intermediate part 9 or the top part 8, as it can be assumed that the rolling resistance amounts to 4% of g. Along the diagonal, the horizontal effort will amount to 0.04V2 x g.
  • the cavities 12 are provided, also shown in Figure 3, the bottom parts of which gradually slope up in outward direction.
  • the rollers 10, 11 are forced out of the cavities 12 by a horizontal movement of the bottom part 6 or the intermediate part 9, a vertical movement has to take place between the bottom part 6 and the intermediate part 9, and between the intermediate part 9 and the top part 8, respectively.
  • the superstructure 4 of the bridge 2 will strongly resist elevation thereof, the bottom part 6 will move vertically downward instead, thereby compressing the underlying prestressed springs 7 ( Figure 3b) .
  • each support 1 may have a length and a width of 1 m x 1 m, while the height may amount to about 0.5 m (dependent on the springs) .
  • a relative displacement of the parts 6, 8, 9 could amount to 50 cm, while the maximum load is 250 tons for each support 1.
  • the invention provides an apparatus for the protection of structures against earthquakes, which can be constructed in a very compact way and which is extremely effective.
  • the apparatus further presents a remarkable simplicity.
  • the invention does not adversely affect the stability of the structure.
  • the invention is not limited to the embodiment represented in the drawings and described in the foregoing, which can be varied in various ways within the scope of the invention. It is, for example, conceivable that instead of rollers, balls are used which are placed directly between the top and bottom parts, and which are located in cavities in the top and bottom parts in the intermediate position which are rotation-symmetric in horizontal direction.
  • the springs may be also disposed on the top part of the support or even internally of the intermediate part consisting of two horizontal portions.
  • the springs may also be replaced by other mechanical or hydraulic springs or other types of springs.
  • the rollers that are to perform the same movement may be interconnected by spacers which, while permitting a rolling movement, keep the rollers at the same distance. These spacers may simultaneously serve to increase the lateral stability of the apparatus in normal use, by engaging the rollers through a friction system having a high static friction and a considerably lower dynamic friction.
  • This friction system may, for example, consist of a fixed ring attached to the spacer which is pressed by springs against an axially facing wall of the corresponding roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Appareil de protection de structures, d'immeubles ou autres contre les séismes. L'appareil comporte au moins un support possédant une partie inférieure (6), une partie supérieure (8) placée au-dessus de la partie inférieure et montée mobile dans le sens horizontal par rapport à celle-ci, la plus grande partie de la structure étant portée par cette partie supérieure, ainsi qu'un mécanisme de translation installé entre les parties supérieure et inférieure (6, 8) afin de permettre à ces dernières de se déplacer de manière régulée l'une par rapport à l'autre et de sorte que le déplacement horizontal des parties supérieure et inférieure (6, 8) l'une par rapport à l'autre entraîne un déplacement dans le sens vertical de l'une desdites parties, un dispositif de résistance (7) étant prévu pour s'opposer à ce déplacement. Le mécanisme de translation comporte plusieurs dispositifs en forme de rouleau (10, 11), et la forme de ces dispositifs (10, 11) et/ou de la partie supérieure et/ou la partie inférieure (6, 8) est telle qu'un mouvement de roulement des dispositifs en forme de rouleau (10, 11), à partir d'une position intermédiaire, entraîne un déplacement dans le sens vertical de la partie équipée du dispositif de résistance (7).
PCT/NL1995/000075 1994-02-28 1995-02-28 Appareil de protection de structures, d'immeubles ou autres contre les seismes WO1995023267A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9400302A NL9400302A (nl) 1994-02-28 1994-02-28 Inrichting voor het beschermen van bouwwerken, constructies en dergelijke tegen aardbevingen.
NL9400302 1994-02-28

Publications (1)

Publication Number Publication Date
WO1995023267A1 true WO1995023267A1 (fr) 1995-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1995/000075 WO1995023267A1 (fr) 1994-02-28 1995-02-28 Appareil de protection de structures, d'immeubles ou autres contre les seismes

Country Status (2)

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NL (1) NL9400302A (fr)
WO (1) WO1995023267A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1015787A2 (fr) * 1997-09-26 2000-07-05 Vistek Inc. Dispositif d'isolation contre les microvibrations
WO2001086192A1 (fr) * 2000-05-09 2001-11-15 Husky Injection Molding Systems Ltd. Ancrage dynamique pour machines
WO2001042593A3 (fr) * 1999-12-01 2002-01-31 Univ New York State Res Found Palier d'isolation sismique
DE10353907A1 (de) * 2003-11-18 2005-06-23 Isoloc Schwingungstechnik Gmbh Schwingungsisolationsvorrichtung insbesondere für den Erdbebenschutz von Gebäuden
US6971795B2 (en) 2001-11-26 2005-12-06 Lee George C Seismic isolation bearing
EP1268950B1 (fr) * 2000-02-09 2009-12-30 Setra Trälyftet AB Utilisation d'un dispositif de connexion pour la connexion et l'isolation acoustique de deux éléments de paroi en forme de panneau
CN102433933A (zh) * 2011-10-12 2012-05-02 北京工业大学 抗拔型水平滚轴支座
WO2014048423A1 (fr) * 2012-09-25 2014-04-03 Schaeffler Technologies AG & Co. KG Élément palier pour deux directions spatiales
WO2015140214A1 (fr) * 2014-03-21 2015-09-24 ISKE, Andreas D.J. Dispositif d'isolation vis-à-vis des vibrations
WO2016151529A3 (fr) * 2015-03-26 2016-11-03 Casa Vincenzo Dispositif sismique pour l'isolation de bâtiments
CN107630792A (zh) * 2016-07-19 2018-01-26 上海泰胜风能装备股份有限公司 锥体套装运输装置
CN108331192A (zh) * 2018-02-12 2018-07-27 孙韬 隔震支座总成及建筑物
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
CN114592614A (zh) * 2022-04-01 2022-06-07 河南城建学院 一种土木工程预制抗震结构及其抗震方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561372A (en) * 1978-03-30 1980-02-20 British Railways Board Concrete slab structure for railway track
EP0052549A1 (fr) * 1980-11-14 1982-05-26 Framatome Dispositif d'appui disposé entre un élément de masse importante et un support fixe
EP0072869A1 (fr) * 1981-02-25 1983-03-02 TOYAMA, Jun Dispositif de suspension
EP0143052A2 (fr) * 1983-11-17 1985-05-29 Framatome Dispositif de centrage et de guidage d'un rouleau de support d'un élément de masse importante
JPH01260138A (ja) * 1988-03-31 1989-10-17 Minoru Egawa 免震機
JPH02129430A (ja) * 1988-11-09 1990-05-17 Hitachi Ltd 構造体の振動減衰装置
EP0439272A2 (fr) * 1990-01-20 1991-07-31 Sumitomo Gomu Kogyo Kabushiki Kaisha Dispositif résistant aux vibrations
US5081806A (en) * 1989-07-25 1992-01-21 Pommelet Yves M Building structure foundation system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561372A (en) * 1978-03-30 1980-02-20 British Railways Board Concrete slab structure for railway track
EP0052549A1 (fr) * 1980-11-14 1982-05-26 Framatome Dispositif d'appui disposé entre un élément de masse importante et un support fixe
EP0072869A1 (fr) * 1981-02-25 1983-03-02 TOYAMA, Jun Dispositif de suspension
EP0143052A2 (fr) * 1983-11-17 1985-05-29 Framatome Dispositif de centrage et de guidage d'un rouleau de support d'un élément de masse importante
JPH01260138A (ja) * 1988-03-31 1989-10-17 Minoru Egawa 免震機
JPH02129430A (ja) * 1988-11-09 1990-05-17 Hitachi Ltd 構造体の振動減衰装置
US5081806A (en) * 1989-07-25 1992-01-21 Pommelet Yves M Building structure foundation system
EP0439272A2 (fr) * 1990-01-20 1991-07-31 Sumitomo Gomu Kogyo Kabushiki Kaisha Dispositif résistant aux vibrations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 13 (M - 918) 11 January 1990 (1990-01-11) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 364 (M - 1007) 7 August 1990 (1990-08-07) *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1015787A2 (fr) * 1997-09-26 2000-07-05 Vistek Inc. Dispositif d'isolation contre les microvibrations
EP1015787A4 (fr) * 1997-09-26 2001-06-27 Vistek Inc Dispositif d'isolation contre les microvibrations
WO2001042593A3 (fr) * 1999-12-01 2002-01-31 Univ New York State Res Found Palier d'isolation sismique
EP1268950B1 (fr) * 2000-02-09 2009-12-30 Setra Trälyftet AB Utilisation d'un dispositif de connexion pour la connexion et l'isolation acoustique de deux éléments de paroi en forme de panneau
WO2001086192A1 (fr) * 2000-05-09 2001-11-15 Husky Injection Molding Systems Ltd. Ancrage dynamique pour machines
US6505806B1 (en) 2000-05-09 2003-01-14 Husky Injection Molding Systems, Ltd. Dynamic machine mount
US6971795B2 (en) 2001-11-26 2005-12-06 Lee George C Seismic isolation bearing
DE10353907A1 (de) * 2003-11-18 2005-06-23 Isoloc Schwingungstechnik Gmbh Schwingungsisolationsvorrichtung insbesondere für den Erdbebenschutz von Gebäuden
DE10353907B4 (de) * 2003-11-18 2006-04-27 Isoloc Schwingungstechnik Gmbh Schwingungsisolationsvorrichtung insbesondere für den Erdbebenschutz von Gebäuden
CN102433933B (zh) * 2011-10-12 2014-01-22 北京工业大学 抗拔型水平滚轴支座
CN102433933A (zh) * 2011-10-12 2012-05-02 北京工业大学 抗拔型水平滚轴支座
WO2014048423A1 (fr) * 2012-09-25 2014-04-03 Schaeffler Technologies AG & Co. KG Élément palier pour deux directions spatiales
US9388853B2 (en) 2012-09-25 2016-07-12 Schaeffler Technologies AG & Co. KG Bearing element for two spatial directions
WO2015140214A1 (fr) * 2014-03-21 2015-09-24 ISKE, Andreas D.J. Dispositif d'isolation vis-à-vis des vibrations
DE102014004059A1 (de) 2014-03-21 2015-09-24 Andreas D.J. Iske Schwingungsisolator
CN107849862A (zh) * 2015-03-26 2018-03-27 文森佐·卡萨 用于绝缘建筑物的地震装置
WO2016151529A3 (fr) * 2015-03-26 2016-11-03 Casa Vincenzo Dispositif sismique pour l'isolation de bâtiments
CN107630792A (zh) * 2016-07-19 2018-01-26 上海泰胜风能装备股份有限公司 锥体套装运输装置
CN108331192A (zh) * 2018-02-12 2018-07-27 孙韬 隔震支座总成及建筑物
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
CN114592614A (zh) * 2022-04-01 2022-06-07 河南城建学院 一种土木工程预制抗震结构及其抗震方法

Also Published As

Publication number Publication date
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