EP0413007A1 - Earthquake-resistant insulator for buildings - Google Patents

Earthquake-resistant insulator for buildings

Info

Publication number
EP0413007A1
EP0413007A1 EP90902294A EP90902294A EP0413007A1 EP 0413007 A1 EP0413007 A1 EP 0413007A1 EP 90902294 A EP90902294 A EP 90902294A EP 90902294 A EP90902294 A EP 90902294A EP 0413007 A1 EP0413007 A1 EP 0413007A1
Authority
EP
European Patent Office
Prior art keywords
side wall
elements
truncated cone
lower element
rot
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP90902294A
Other languages
German (de)
French (fr)
Inventor
Patrice Bellavista
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0413007A1 publication Critical patent/EP0413007A1/en
Withdrawn legal-status Critical Current

Links

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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the present invention relates to a seismic isolator for the construction of buildings.
  • the seismic devices known to date are of * two distinct types: they are either based on a possibility of sliding with friction allowing a limited displacement (Cf patents FR 86 10780 and FR 88 00237 of the same inventor), or designed from elastomer studs, often fretted, the distortion of which is used.
  • the movement of the building is not amortized and the significant lateral movements can cause extremely hard shocks which can be the cause of ruptures of the earthquake-proof device, natural or, see their characteristics evolving over time, which logically should lead to their periodic replacement.
  • these devices do not make it possible to control the amplitude of the movements due to the earthquakes.
  • the device according to the present invention eliminates all these drawbacks.
  • Figures 1 and 2 show in perspective the upper and lower elements, separated.
  • Figures 3 »4 and 5 show cross sections of three versions of the assembled device.
  • FIGS. 1 to 5 consists of an upper element 1 in the form of a cylindrical cap with a flat bottom, the hollow part of which is directed downwards, integral with the superstructure of the building, with a stud or truncated cone 2 secured to the bearing surface, and to one or two damping rings 3, 3 'connected to one or two elements 1, 2 and located in an annular space 4 formed between the lower truncated cone and the upper cap 1.
  • the lower stud fixed on the foundations.
  • An intermediate space 4 separates these two elements.
  • the lower element 2 has at its base a horizontal friction plate 7 on which the lower edge 10 of the upper element 1 rests.
  • the angles 8, 9 of the side wall 16 of the stud 2 with its upper section 6 and with the plate 7 are rounded to avoid breaking initiations and a scraping effect during lateral displacements.
  • the damping crown 3 is secured to the internal side wall 11 of the upper element 1 while the crown 3 'is secured to the side wall 16 of the lower stud 2.
  • These two crowns can be replaced by a single one, secured to the side walls 11, 16 of the upper and lower elements, or of one of the two, and filling the entire intermediate annu ⁇ space 4.
  • the intermediate space 4 may be a few centimeters or exceed several tens of centimeters and adapt to the size of the building to be protected.
  • the size of the contact surfaces 10, 6 of the upper 1 and lower 2 elements can be adapted to each type of construction.
  • All the parts of the device are made of rot-proof material and with characteristics stable over time, preferably polyurethane.
  • the material used must have a shore A hardness greater than 90, a resilience greater than 40%, a tensile strength greater than 50 MPa and an abrasion resistance greater than 55 mg / mm, while for damping crowns 3, 3 ′, shore A hardness must be less than 50, resilience less than 5%, elongation at break greater than 500% and shock absorption greater than 95

Landscapes

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

Abstract

La présente invention a pour objet un isolateur parasismique pour la construction de bâtiments. Il est constitué par la combinaison, d'une part, de deux éléments monoblocs (1, 2) désolidarisés réalisés dans un matériau dur, imputrescible et possédant une très grande résistance à l'abrasion, ces éléments étant solidaires respectivement de l'infrastructure et de la superstructure du bâtiment, l'élément inférieur (2) étant constitué d'une plaque horizontale (7) de frottement préférentiellement circulaire comportant en son centre un tronc de cône, l'élément supérieur (1) étant constitué d'une calotte circulaire, à la concavité tournée vers le bas et venant coiffer l'élément inférieur (2) de manière à ce que le fond de la concavité (5) repose sur le sommet du tronc de cône et les bords inférieurs (10) sur la plaque de frottement (7) de l'élément inférieur (2), un espace annulaire (4) entre les parois latérales (11, 16) de l'élément supérieur et le tronc de cône de l'élément inférieur permettant un déplacement relatif latéral, et d'autre part d'une ou deux couronnes (3, 3') réalisées en un matériau également imputrescible et possédant des caractéristiques élevées d'amortissement aux chocs, solidaires de la paroi latérale interne (11) de l'élément supérieur (1) et/ou de la paroi latérale (16) du tronc de cône de l'élément inférieur (2) et remplissant tout ou partie de l'espace annulaire situé entre les deux éléments. Il est destiné à être interposé entre le sol et les bâtiments édifiés en vue de permettre à ces constructions d'éviter de subir les effets des agressions sismiques les plus violentes.The present invention relates to a seismic isolator for the construction of buildings. It consists of the combination, on the one hand, of two separate monoblock elements (1, 2) made of a hard, rot-proof material and having a very high resistance to abrasion, these elements being respectively secured to the infrastructure and of the building superstructure, the lower element (2) consisting of a horizontal plate (7) preferably circular friction comprising at its center a truncated cone, the upper element (1) consisting of a circular cap , with the concavity facing downwards and coming to cover the lower element (2) so that the bottom of the concavity (5) rests on the top of the truncated cone and the lower edges (10) on the plate friction (7) of the lower element (2), an annular space (4) between the side walls (11, 16) of the upper element and the truncated cone of the lower element allowing a relative lateral displacement, and on the other hand, one or two crowns (3, 3 ') made e n a material which is also rot-proof and has high shock absorption characteristics, integral with the internal side wall (11) of the upper element (1) and / or the side wall (16) of the truncated cone of the lower element (2) and filling all or part of the annular space located between the two elements. It is intended to be interposed between the ground and the buildings constructed in order to allow these constructions to avoid undergoing the effects of the most violent seismic attacks.

Description

ISOLATEUR PARAS1SMIQUE POUR LA CONSTRUCTION DE BATIMENTSPARAS1SMIQUE INSULATOR FOR BUILDING CONSTRUCTION
La présente invention a pour objet un isolateur parasismique pour la construction de bâtiments .The present invention relates to a seismic isolator for the construction of buildings.
Il est destiné à être interposé entre le sol et les bâtiments édifiés en vue de permettre à ces constructions d ' éviter de subir les effets des agressions sismiques les plus violentes.It is intended to be interposed between the ground and the buildings constructed in order to allow these constructions to avoid undergoing the effects of the most violent seismic attacks.
Les dispositifs parasismiques connus à ce jour sont de *deux types distincts : ils sont soit basés sur une possibilité de glissement avec frottement permettant un déplacement limité (Cf les brevets FR 86 10780 et FR 88 00237 du même inventeur) , soit conçus à partir de plots en élastomère , souvent frettés , dont on utilise la distorsion . Dans le premier cas le déplacement du bâtiment n ' est pas amorti et les déplacements latéraux importants peuvent entraîner des chocs extrêmement durs pouvant être la cause de ruptures du dispositif antisismique , naturel ou , voient leurs caractéristiques évoluer avec le temps, ce qui logiquement devrait entraîner leur remplacement périodique. De plus ces dispositifs ne permettent pas de contrôler l ' amplitude des mouvements dus aux secousses sismiques . Le dispositif suivant la présente invention supprime tous ces inconvénients . En effet, il permet à la fois d ' amortir les mouve¬ ments aussi bien verticaux que latéraux entraînés par un séisme , et de contrôler l ' amplitude de ces mouvements , tout en freinant . En outre, ils sont constitués de matériaux ..extrêmement stables dans le temps et résistant parfaitement -aux différences de tempé- rature , aux micro-organismes et au agressions chimiques.The seismic devices known to date are of * two distinct types: they are either based on a possibility of sliding with friction allowing a limited displacement (Cf patents FR 86 10780 and FR 88 00237 of the same inventor), or designed from elastomer studs, often fretted, the distortion of which is used. In the first case, the movement of the building is not amortized and the significant lateral movements can cause extremely hard shocks which can be the cause of ruptures of the earthquake-proof device, natural or, see their characteristics evolving over time, which logically should lead to their periodic replacement. In addition, these devices do not make it possible to control the amplitude of the movements due to the earthquakes. The device according to the present invention eliminates all these drawbacks. Indeed, it makes it possible both to dampen both vertical and lateral movements caused by an earthquake, and to control the amplitude of these movements, while braking. In addition, they are made of materials .. extremely stable over time and perfectly resistant to temperature differences, microorganisms and chemical attack.
Il est constitué par la combinaison , d 'une part, de deux éléments monoblocs désolidarisés réalisés dans un matériau dur , imputres¬ cible et possédant une très grande résistance à l ' abrasion , ces éléments étant solidaires respectivement de l ' infrastructure et de la superstructure du bâtiment , l 'élément inférieur étant consti tué d ' une plaque horizontale de frottement préférentiellement circulaire comportant en son centre un tronc de cône, l 'élément supérieur étant constitué d 'une calotte circulaire , à la concavité tournée vers le bas et venant coiffer l 'élément inférieur de manière à ce que le fond de la concavité repose sur- 'le sommet du tronc de cône et les bords inférieurs sur la plaque de frotte¬ ment de l'élément inférieur, un espace annulaire entre les parois latérales de l'élément supérieur et le tronc de cône de l 'élément inférieur permettant un déplacement relatif latéral, et d' autre part d ' une ou deux couronnes réalisées en un matériau également imputrescible et possédant des caractéristiques élevées d 'amortis¬ sement aux chocs, solidaires de la paroi latérale interne de l'élément supérieur et/ou de la paroi latérale du tronc de cône de l 'élément inférieur et remplissant tout ou partie de l 'espace annulaire situé entre les deux éléments.It is made up of the combination, on the one hand, of two dissociated one-piece elements made of a hard, imputres¬ target material and having a very high resistance to abrasion, these elements being respectively secured to the infrastructure and the superstructure of the building, the lower element being made up of a preferably circular horizontal friction plate comprising in its center a truncated cone, the upper element consisting of a circular cap, with the concavity turned downwards and coming to cover the lower element so that the bottom of the concavity rests on the top of the truncated cone and the lower edges on the friction plate of the lower element, an annular space between the side walls of the upper element and the truncated cone of the lower element allowing relative lateral displacement, and on the other hand of one or two crowns made of a material also rot-proof and having high characteristics of shock-absorbing, integral with the internal side wall of the upper element and / or the side wall of the trunk of cone of the lower element and filling all or part of the annular space situated between the two elements.
Sur les dessins annexés, donnés à titre d' exemple non limitatif , d' une des formes de réalisation de l 'objet de l ' invention : Les figures 1 et 2 montrent en perspective les éléments supérieur et inférieur, séparés. Les figures 3» 4 et 5 représentent des coupes transversales de trois versions du dispositif assemblé.In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the object of the invention: Figures 1 and 2 show in perspective the upper and lower elements, separated. Figures 3 »4 and 5 show cross sections of three versions of the assembled device.
Le dispositif, figure 1 à 5, est constitué d'un élément supérieur 1 en forme de calotte cylindrique à fond plat dont la partie creuse est dirigée vers le bas, solidaire de la superstructure du bâtiment, d ' un plot ou tronc de cône 2 solidaire de la surface portante, et d 'une ou deux couronnes amortissantes 3, 3 ' soli¬ daires de l'un ou des deux éléments 1 , 2 et situées dans un espace annulaire 4 ménagé entre le tronc de cône inférieur et la calotte supérieure 1. Ces deux éléments étant désolidarisés, le supérieur est mobile sous l 'effet d'un séisme. Le plot inférieur fixé sur les fondations. Un espace intercalaire 4 sépare ces deux éléments. Le premierThe device, FIGS. 1 to 5, consists of an upper element 1 in the form of a cylindrical cap with a flat bottom, the hollow part of which is directed downwards, integral with the superstructure of the building, with a stud or truncated cone 2 secured to the bearing surface, and to one or two damping rings 3, 3 'connected to one or two elements 1, 2 and located in an annular space 4 formed between the lower truncated cone and the upper cap 1. These two elements being separated, the superior is mobile under the effect of an earthquake. The lower stud fixed on the foundations. An intermediate space 4 separates these two elements. The first
I étant mobile en cas de séisme, le second 2 restant fixe. L 'élément inférieur 2 comporte à sa base une plaque horizontale de frottement 7 sur laquelle repose le bord inférieur 10 de l'élément supérieur 1. Les angles 8, 9 de la paroi latérale 16 du plot 2 avec sa section supérieure 6 et avec la plaque 7 sont arrondis pour éviter des amorces de rupture et un effet de raclage lors des déplacements latéraux. Pour les mêmes raisons, les angles 13, 14, 15 formés par les parois latérales internesI being mobile in the event of an earthquake, the second 2 remaining fixed. The lower element 2 has at its base a horizontal friction plate 7 on which the lower edge 10 of the upper element 1 rests. The angles 8, 9 of the side wall 16 of the stud 2 with its upper section 6 and with the plate 7 are rounded to avoid breaking initiations and a scraping effect during lateral displacements. For the same reasons, the angles 13, 14, 15 formed by the internal side walls
II et externes 12 de l 'élément supérieur 1 avec le fond 5 et le bord inférieur 10 sont également arrondis. La couronne amortissante 3 est solidaire de la paroi latérale interne 11 de l'élément supérieur 1 alors que la couronne 3' est solidaire de la paroi latérale 16 du plot inférieur 2. Ces deux couronnes peuvent être remplacées par une seule, solidaire des parois latérales 11, 16 des éléments supérieur et inférieur, ou de l'une des deux, et remplissant la totalité de l'espace annu¬ laire intercalaire 4.II and external 12 of the upper element 1 with the bottom 5 and the lower edge 10 are also rounded. The damping crown 3 is secured to the internal side wall 11 of the upper element 1 while the crown 3 'is secured to the side wall 16 of the lower stud 2. These two crowns can be replaced by a single one, secured to the side walls 11, 16 of the upper and lower elements, or of one of the two, and filling the entire intermediate annu¬ space 4.
L'espace intercalaire 4 peut avoir quelques centimètres ou dépasser plusieurs dizaines de centimètres et s'adapter à la dimension du bâtiment à protéger.The intermediate space 4 may be a few centimeters or exceed several tens of centimeters and adapt to the size of the building to be protected.
La dimension des surfaces de conctact 10, 6 des éléments supérieur 1 et inférieur 2 sont adaptables à chaque espèce de construction.The size of the contact surfaces 10, 6 of the upper 1 and lower 2 elements can be adapted to each type of construction.
Toutes les parties du dispositif sont réalisées en matériau impu- trescible et aux caractéristiques stables dans le temps, préféren- tiellement du polyuréthanne. Pour les éléments supérieur 1 et inférieur 2, le matériau utilisé devra avoir une dureté shore A supérieure à 90, une résilience supérieure à 40 %, une résis¬ tance à la traction supérieure à 50 MPa et une résistance à l'abrasion supérieure à 55 mg/mm, alors que pour les couronnes amortissantes 3, 3', la dureté shore A devra être inférieure à 50, la résilience inférieure à 5 %, l'allongement à la rupture supérieur à 500 % et l'amortissement aux chocs supérieur à 95All the parts of the device are made of rot-proof material and with characteristics stable over time, preferably polyurethane. For the upper 1 and lower 2 elements, the material used must have a shore A hardness greater than 90, a resilience greater than 40%, a tensile strength greater than 50 MPa and an abrasion resistance greater than 55 mg / mm, while for damping crowns 3, 3 ′, shore A hardness must be less than 50, resilience less than 5%, elongation at break greater than 500% and shock absorption greater than 95
/o. Le positionnement des divers éléments constitutifs donnent à ce dispositif un maximum d'effets utiles qui n'aveient pas été obtenus à ce jour par des dispositifs similaires. •> / o. The positioning of the various constituent elements gives this device a maximum of useful effects which have not been obtained to date by similar devices. •>

Claims

REVENDICATIONS
1° Isolateur parasismique pour la construction de bâtiments, des¬ tiné à être interposé entre le sol et les bâtiments édifiés en vue de permettre à ces constructions d'éviter de subir les effets des agressions sismiques les plus violentes, ayant pour objet d'amortir les mouvements aussi bien verticaux que latéraux entraînés par des séismes, et de contrôler l'amplitude de ces mouvements, tout en les freinant, se caractérisant par la combinaison d'une part, de deux éléments monoblocs (1, 2) désolidarisés réalisés dans un matériau dur, imputrescible et possédant une très grande résis- tance à l'abrasion, ces éléments étant solidaires respectivement de l'infrastructure et de la superstructure du bâtiment, l'élément inférieur étant constitué d'une plaque horizontale de frottement (7)) préférentiellement circulaire comportant en son centre un tronc cône, l'élément supérieur étant constitué d'une calotte circulaire à fond plat, à la concavité tournée vers le bas et venant coiffer l'élément inférieur (2) de manière à ce que le fond (5) de la concavité repose sur le sommet (6) du tronc de cône et les bords inférieurs (10) sur la plaque de frottement (7) de l'élément inférieur (2), un espace annulaire (4) entre les parois latérales (11, 16) de l'élément supérieur et le tronc de cône de l'élément inférieur permettant un déplacement relatif latéral, et d'autre part au moins une couronne amortissante (3, 3') réalisée en un matériau également imputrescible et possédant des caractéristiques élevées d'amortissement aux chocs, solidaire de la paroi latérale interne (11) de l'élément supérieur et/ou de la paroi latérale (16) du tronc de cône de l'élément inférieur (2) et remplissant tout ou partie de l'espace annulaire (4) situé entre les deux éléments (1, 2). 2° Dispositif suivant la revendication 1, se caractérisant par le fait que les éléments supérieur (1) et inférieur (2) comportent chacun une couronne amortissante (3, 3'), solidaire respectivement de la paroi latérale interne (11) de l'élément supérieur (1) et de la paroi latérale du tronc de cô,e de l'élément inférieur (2). 3° Dispositif suivant la revendication 1, se caractérisant par le fait que l'espace annulaire (4) est entièrement rempli par une couronne amortissante (3) fig 5 solidaire à la fois de la paroi latérale interne (11) de l'élément supérieur (1) et de la paroi latérale du tronc de cône de l'élément inférieur (2) ou de l'une seule des deux.1 ° Seismic isolator for the construction of buildings, intended to be interposed between the ground and the buildings erected in order to allow these constructions to avoid undergoing the effects of the most violent seismic attacks, having as their object to dampen both vertical and lateral movements caused by earthquakes, and to control the amplitude of these movements, while slowing them down, characterized by the combination on the one hand, of two separate monoblock elements (1, 2) produced in a hard, rot-proof material with very high abrasion resistance, these elements being secured respectively to the infrastructure and the superstructure of the building, the lower element consisting of a horizontal friction plate (7)) preferably circular comprising in its center a cone trunk, the upper element consisting of a circular cap with a flat bottom, at the concavity t facing downwards and covering the lower element (2) so that the bottom (5) of the concavity rests on the top (6) of the truncated cone and the lower edges (10) on the friction plate (7) of the lower element (2), an annular space (4) between the side walls (11, 16) of the upper element and the truncated cone of the lower element allowing relative lateral displacement, and d 'other hand at least one damping ring (3, 3') made of a material also rot-proof and having high shock absorption characteristics, integral with the internal side wall (11) of the upper element and / or the side wall (16) of the truncated cone of the lower element (2) and filling all or part of the annular space (4) located between the two elements (1, 2). 2 ° Device according to claim 1, characterized in that the upper (1) and lower (2) elements each comprise a damping ring (3, 3 '), respectively secured to the inner side wall (11) of the upper element (1) and the side wall of the trunk of the lower element (2). 3 ° Device according to claim 1, characterized in that the annular space (4) is completely filled by a damping ring (3) fig 5 secured to both the internal side wall (11) of the upper element (1) and the side wall of the truncated cone of the lower element (2) or one of the two.
4° Dispositif suivant l'une quelconque dees revendications pré¬ cédentes, se caractérisant par le fait que les angles (8, 9) de la paroi latérale (16) du plot (2) avec sa section droite supérieure (6) et avec la plaque (7), ainsi que les angles (13, 14, 15) formés par le_ parois latérales internes (11) et externes (12) de l'élément supérieur (1) avec le fond (5) et le bord inférieur (10), sont arrondis pour éviter des amorces de rupture et un effet de raclage lors des déplacements latéraux. 5° Dispositif suivant l'une quelconque des revendications précé¬ dentes, se caractérisant par le fait que les éléments supérieurs (1) et inférieur (2) sont réalisés en un matériau imputrescible et aux caractéristiques stables dans le temps, préférentiellement du polyuréthanne, ayant une dureté shore A supérieure à 90, une résilience supérieure à 40 %, une résistance à la traction supérieure à 50 MPa et une résistance à l'abrasion supérieure à 55 mg/mm.4. Device according to any one of the preceding claims, characterized in that the angles (8, 9) of the side wall (16) of the stud (2) with its upper cross section (6) and with the plate (7), as well as the angles (13, 14, 15) formed by the internal (11) and external (12) side walls of the upper element (1) with the bottom (5) and the lower edge (10 ), are rounded to avoid breaking initiations and a scraping effect during lateral movements. 5 ° Device according to any one of the preceding claims, characterized in that the upper (1) and lower (2) elements are made of a rot-proof material and with characteristics stable over time, preferably polyurethane, having a shore a hardness greater than 90, e greater resilience than 40%, the higher tensile strength 50 MPa and a higher abrasion resistance 55 mg / mm.
6° Dispositif suivant l'une quelconque des revendications précé¬ dentes, se caractérisant par le fait que la ou les couronnes amor- tissantes (3, 3') sont réalisées en un matériau imputrescible et aux caractéristiques stables dans le temps, préférentiellement du polyuréttanne, ayant une dureté shore A inférieure à 50, une résilience inférieure à 5 %, unn allongement à la rupture supérieur à 500 % et un maortissement aux chocs supérieur à 6. Device according to any one of the preceding claims, characterized in that the damping crown (s) (3, 3 ′) are made of a rot-proof material and with characteristics stable over time, preferably polyurethane , having a shore A hardness less than 50, a resilience less than 5%, an elongation at break greater than 500% and a shock absorption greater than
EP90902294A 1989-02-10 1990-01-26 Earthquake-resistant insulator for buildings Withdrawn EP0413007A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901928A FR2643105B1 (en) 1989-02-10 1989-02-10 PARASISMIC INSULATOR FOR BUILDING CONSTRUCTION
FR8901928 1989-02-10

Publications (1)

Publication Number Publication Date
EP0413007A1 true EP0413007A1 (en) 1991-02-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90902294A Withdrawn EP0413007A1 (en) 1989-02-10 1990-01-26 Earthquake-resistant insulator for buildings

Country Status (5)

Country Link
US (1) US5131195A (en)
EP (1) EP0413007A1 (en)
JP (1) JPH03503916A (en)
FR (1) FR2643105B1 (en)
WO (1) WO1990009499A1 (en)

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JPH03503916A (en) 1991-08-29
WO1990009499A1 (en) 1990-08-23
FR2643105B1 (en) 1995-10-13
FR2643105A1 (en) 1990-08-17
US5131195A (en) 1992-07-21

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