EP0557979A1 - Device for damage prevention on buildings in areas with earthquakes - Google Patents

Device for damage prevention on buildings in areas with earthquakes Download PDF

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Publication number
EP0557979A1
EP0557979A1 EP93102900A EP93102900A EP0557979A1 EP 0557979 A1 EP0557979 A1 EP 0557979A1 EP 93102900 A EP93102900 A EP 93102900A EP 93102900 A EP93102900 A EP 93102900A EP 0557979 A1 EP0557979 A1 EP 0557979A1
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EP
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Prior art keywords
nut
shell
threaded rod
lower shell
end section
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EP93102900A
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German (de)
French (fr)
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EP0557979B1 (en
Inventor
Hans Helmut Jung
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/34—Foundations for sinking or earthquake territories

Definitions

  • the invention relates to a device for preventing damage to buildings in areas of ground movement with an upper shell and a lower shell, between which at least one suspension spring is arranged, which can be preloaded according to the loads to be carried and the change in the ground pressure due to the abnormal ground movement.
  • Such devices which normally have several suspension springs, e.g. four suspension springs, have been used successfully for more than fifteen years to renovate and secure buildings in areas with abnormal ground movements.
  • the invention has for its object to develop the generic device for preventing damage to buildings in areas of ground movement such that, even with strongly fluctuating building loads or building payloads, no further auxiliary measures are required in addition to the use of the devices mentioned.
  • At least one threaded rod which is arranged between the upper and lower shells parallel to the supporting spring, projects into the upper and lower shells and is fixedly attached to the lower or upper shell at one end section, with the other end section a threaded nut is provided on the threaded rod, which can be brought into contact with the upper or lower shell on one side and with on the other side a torsion spring is engaged, by means of which the guide nut can be pretensioned in abutment with the upper or lower shell and which at its end remote from the guide nut is engaged with a tension nut secured by a lock nut.
  • the threaded rods with the elements arranged on them form a self-locking device by means of which it is ensured that the distance between the upper and lower shells cannot be reduced. If the reaction force exerted by the suspension spring or the suspension springs is not sufficient to compensate for the forces acting on the upper shell, the forces exceeding the reaction force of the suspension spring or the suspension springs are transmitted from the upper shell directly through the threaded rod into the lower shell. Compressing the spring and thus reducing the distance between the upper and lower shell is not possible.
  • the torsion spring adjusts the guide nut on the threaded rod due to its internal tension. so that a non-positive connection between the upper shell and the lower shell is guaranteed at all times via the threaded rod. Any tools to be installed outside of the device therefore superfluous.
  • the threaded rod or the threaded rods can also take on the function of transport securing bolts.
  • a particularly reliable actuation of the tracking nut by the torsion spring is ensured if the threaded rod is firmly attached to the upper shell, so that the tracking nut interacts with the lower shell.
  • the adjustment nut is adjusted by means of the torsion spring, taking advantage of and not against the weight of the adjustment nut.
  • a device having a plurality of suspension springs for preventing damage to buildings in areas of ground movement has four threaded rods described above.
  • a device for preventing damage to buildings in areas of ground movement shown in FIGS. 1 and 2 has an upper shell 1 and a lower shell 2.
  • the upper shell 1 has an U-cross section which is open at the top
  • the lower shell 2 has a U-section which is open at the bottom, at least over a considerable part of its length.
  • suspension springs 3 are arranged between the upper shell 1 and the lower shell 2, each of which rests against the upper shell 1 at one end and against the lower shell 2 at the other end.
  • the upper shell 1 is connected to the lower shell 2 via four threaded rods 4 in the exemplary embodiment shown.
  • the threaded rod 4 has an end section on the upper shell side, which protrudes into the upwardly open upper shell 1 through a recess provided in the base of the U-shaped cross section of the upper shell 1. Said end section is fastened to the upper shell by means of an upper nut 5, which is arranged above the base of the U-cross section, a washer 6, which is arranged between the first nut 5 and the base, and a second nut 7, which is located below the base and screwed against it.
  • a lock nut 8 is arranged on the threaded rod 4 below the second nut 7. This serves to fix a clamping nut 9, which is arranged below the lock nut 8 on the threaded rod 4 and in the underside of which one end of a torsion spring 10 is integrated.
  • the torsion spring can be pretensioned in such a way that it presses a tracking nut 11, in which its lower end is integrated, into contact with the top of the base of the U-shaped cross section of the lower shell 2.
  • one end portion of the threaded rod 4 which protrudes into the lower shell 2 by designs provided in the base of the U-cross section of the lower shell 2 is one Transport lock nut 12 is provided, by means of which the upper shell 1 and the lower shell 2 are held together during their transport to the place of use.
  • a washer 13 is arranged between the transport securing nut 12 and the base of the U cross section of the lower shell 2.
  • the transport lock nuts become 12 removed.
  • the torsion spring 10 which is integrated at its upper end in the clamping nut 9 and at its lower end in the tracking nut 11, by turning the clamping nut 9 on the threaded rod 4 as high as biased and fixed with the lock nut 8 arranged above it on the threaded rod 4. This ensures that the suspension springs 3 of the devices can no longer sink under increased load; the load portion from the load increase is carried off by the threaded rods 4 directly from the upper shell 1 into the lower shell 2.
  • the torsion spring 10 guides the guide nut 11 on the threaded rod 4 downward due to its internal tension after, so that a frictional connection between the upper shell 1 and the lower shell 2 is guaranteed at all times.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

A device for damage prevention on buildings in areas of ground movement has a top shell (1) and a bottom shell (2). Arranged between the shells (1, 2) is at least one supporting spring (3) which can be preloaded in accordance with the change in soil pressure on account of the abnormal ground movement. In order to avoid additional arrangements which in each case require separate chambers, foundations or bases on common foundations, the device according to the invention has at least one threaded rod (4) which is arranged between the top shell (1) and the bottom shell (2) parallel to the supporting spring, projects into the top shell (1) and bottom shell (2) and is firmly attached at an end section to the bottom shell (2) or the top shell (1). Provided at the other end section of the threaded rod (4) is a follow-up nut (11) which with one side can be brought into contact with the top shell (1) or bottom shell (2) and at the other side is in engagement with a torsion spring (10) by means of which the follow-up nut (11) can be preloaded in contact with the top shell (1) or bottom shell (2) and which is in engagement at its end remote from the follow-up nut with a clamping nut (9) secured by a lock nut (8). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen mit einer Oberschale und einer Unterschale, zwischen denen zumindest eine Tragfeder angeordnet ist, die entsprechend den zu tragenden Lasten und der Veränderung der Bodenpressung aufgrund der abnormalen Bodenbewegung vorspannbar ist.The invention relates to a device for preventing damage to buildings in areas of ground movement with an upper shell and a lower shell, between which at least one suspension spring is arranged, which can be preloaded according to the loads to be carried and the change in the ground pressure due to the abnormal ground movement.

Derartige Vorrichtungen, die normalerweise mehrere Tragfedern, z.B. vier Tragfedern, aufweisen, werden seit mehr als fünfzehn Jahren zur Sanierung und Sicherung von Bauwerken in Bereichen mit abnormalen Bodenbewegungen mit Erfolg eingesetzt.Such devices, which normally have several suspension springs, e.g. four suspension springs, have been used successfully for more than fifteen years to renovate and secure buildings in areas with abnormal ground movements.

Bei stark schwankenden Gebäudelasten bzw. Gebäudenutzlasten ist der Einsatz derartiger Vorrichtungen allein, ohne zusätzliche Hilfsmittel, nicht möglich, da insbesondere zunehmende Gebäudelasten eine zusätzliche Einsenkung der Tragfedern und damit der entsprechenden Gebäudeteile verursachen. Demgemäß müssen bei derartigen Belastungsprofilen zusätzliche Maßnahmen vorgesehen werden. Diese bestehen bisher aus mechanischen Hilfsmitteln in Form von selbst nachstellenden Keilen oder ähnlichen Konstruktionen, die verhindern, daß eine zusätzliche Einsenkung der Gebäudeteile gegenüber den sie tragenden Fundamenten aufgrund der genannten Lastschwankungen entstehen konnte. Zum Einsatz derartiger Hilfsmittel ist es bisher unumgänglich, daß hierfür jeweils eigene Kammern, Fundamente oder Sockel auf gemeinsamen Fundamenten erstellt werden mußten.In the case of strongly fluctuating building loads or building payloads, the use of such devices alone, without additional aids, is not possible, since in particular increasing building loads cause an additional depression of the suspension springs and thus the corresponding parts of the building. Accordingly, additional measures must be provided for such load profiles. So far, these consist of mechanical aids in the form of self-adjusting wedges or similar constructions, which prevent an additional depression of the building parts compared to the foundations supporting them due to the load fluctuations mentioned. Until now, it has been unavoidable to use such aids that separate chambers, foundations or bases had to be created on common foundations.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen derart weiterzubilden, daß auch bei stark schwankenden Gebäudelasten bzw. Gebäudenutzlasten neben dem Einsatz der genannten Vorrichtungen keine weiteren Hilfsmaßnahmen erforderlich sind.The invention has for its object to develop the generic device for preventing damage to buildings in areas of ground movement such that, even with strongly fluctuating building loads or building payloads, no further auxiliary measures are required in addition to the use of the devices mentioned.

Diese Aufgabe wird erfindungsgemäß durch zumindest einen Gewindestab gelöst, der zwischen der Ober- und der Unterschale parallel zur Tragfeder angeordnet ist, in die Ober- und Unterschale vorsteht und an einem Endabschnitt an der Unter- oder der Oberschale fest angebracht ist, wobei am anderen Endabschnitt des Gewindestabs eine Nachführmutter vorgesehen ist, die mit einer Seite in Anlage an die Ober- oder Unterschale bringbar und an der anderen Seite mit einer Torsionsfeder in Eingriff ist, mittels der die Nachführmutter in Anlage an die Ober- oder Unterschale vorspannbar ist und die an ihrem nachführmutterfernen Ende mit einer durch eine Kontermutter gesicherten Spannmutter in Eingriff ist. Die Gewindestäbe mit den auf ihnen angeordneten Elementen, nämlich der Kontermutter, der Spannmutter, der Torsionsfeder und der Nachführmutter, bilden eine Selbstarretiervorrichtung, mittels der sichergestellt wird, daß sich der Abstand zwischen der Ober- und der Unterschale nicht verkleinern kann. Sofern die durch die Tragfeder oder durch die Tragfedern aufgebrachte Reaktionskraft nicht ausreichend ist, um die an der Oberschale angreifenden Kräfte auszugleichen, werden die über die Reaktionskraft der Tragfeder bzw. der Tragfedern hinausgehenden Kräfte von der Oberschale unmittelbar durch den Gewindestab in die Unterschale übertragen. Ein Zusammendrücken der Feder und damit eine Verkleinerung des Abstandes zwischen Ober- und Unterschale ist nicht möglich.This object is achieved according to the invention by at least one threaded rod which is arranged between the upper and lower shells parallel to the supporting spring, projects into the upper and lower shells and is fixedly attached to the lower or upper shell at one end section, with the other end section a threaded nut is provided on the threaded rod, which can be brought into contact with the upper or lower shell on one side and with on the other side a torsion spring is engaged, by means of which the guide nut can be pretensioned in abutment with the upper or lower shell and which at its end remote from the guide nut is engaged with a tension nut secured by a lock nut. The threaded rods with the elements arranged on them, namely the lock nut, the tension nut, the torsion spring and the tracking nut, form a self-locking device by means of which it is ensured that the distance between the upper and lower shells cannot be reduced. If the reaction force exerted by the suspension spring or the suspension springs is not sufficient to compensate for the forces acting on the upper shell, the forces exceeding the reaction force of the suspension spring or the suspension springs are transmitted from the upper shell directly through the threaded rod into the lower shell. Compressing the spring and thus reducing the distance between the upper and lower shell is not possible.

Für den Fall, daß sich bei einer erwünschten und gewollten Nachjustierung der Vorrichtung der Abstand zwischen der Oberschale und der Unterschale planmäßig ändert oder der Abstand durch Absinken des Fundaments aufgrund einer Bodenbewegung zunimmt, führt die Torsionsfeder aufgrund ihrer inneren Spannung die Nachführmutter auf dem Gewindestab nach, so daß zu jeder Zeit über den Gewindestab ein Kraftschluß zwischen der Oberschale und der Unterschale gewährleistet ist. Jegliche außerhalb der Vorrichtung zu installierenden Hilfsmittel sind somit überflüssig.In the event that the distance between the upper shell and the lower shell changes as planned or the distance increases due to lowering of the foundation due to ground movement, the torsion spring adjusts the guide nut on the threaded rod due to its internal tension. so that a non-positive connection between the upper shell and the lower shell is guaranteed at all times via the threaded rod. Any tools to be installed outside of the device therefore superfluous.

Wenn an dem in die Ober- bzw. Unterschale vorstehenden Teil des die Nachführmutter aufweisenden Endabschnitts des Gewindestabs eine Transportsicherungsmutter angeordnet ist, kann der Gewindestab bzw. können die Gewindestäbe auch die Funktion von Transportsicherungsbolzen übernehmen.If a transport securing nut is arranged on the part of the end section of the threaded rod which has the guide nut and projects into the upper or lower shell, the threaded rod or the threaded rods can also take on the function of transport securing bolts.

Eine besonders zuverlässige Betätigung der Nachführmutter durch die Torsionsfeder wird sichergestellt, wenn der Gewindestab an der Oberschale fest angebracht ist, so daß die Nachführmutter mit der Unterschale zusammenwirkt. Bei dieser Ausgestaltung erfolgt die Nachstellung der Nachführmutter mittels der Torsionsfeder unter Ausnutzung und nicht gegen die Gewichtskraft der Nachführmutter.A particularly reliable actuation of the tracking nut by the torsion spring is ensured if the threaded rod is firmly attached to the upper shell, so that the tracking nut interacts with the lower shell. In this embodiment, the adjustment nut is adjusted by means of the torsion spring, taking advantage of and not against the weight of the adjustment nut.

In einer gebräuchlichen, vorteilhaften Ausführungsform hat eine mehrere Tragfedern aufweisende Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen vier vorstehend beschriebene Gewindestäbe.In a customary, advantageous embodiment, a device having a plurality of suspension springs for preventing damage to buildings in areas of ground movement has four threaded rods described above.

Im folgenden wird die Erfindung an Hand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert.The invention is explained in more detail below using an exemplary embodiment with reference to the drawing.

Es zeigen:

Figur 1
eine Längsschnittdarstellung der erfindungsgemäßen Vorrichtung zur Schadensverhinderung; und
Figur 2
eine Draufsicht auf die erfindungsgemäße Vorrichtung zur Schadensverhinderung.
Show it:
Figure 1
a longitudinal sectional view of the device for preventing damage; and
Figure 2
a plan view of the device for preventing damage.

Eine in den Figuren 1 und 2 dargestellte Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen weist eine Oberschale 1 und eine Unterschale 2 auf. Die Oberschale 1 hat einen nach oben offenen, die Unterschale 2 einen nach unten offenen U-Querschnitt, zumindest über einen beträchtlichen Teil ihrer Länge.A device for preventing damage to buildings in areas of ground movement shown in FIGS. 1 and 2 has an upper shell 1 and a lower shell 2. The upper shell 1 has an U-cross section which is open at the top, the lower shell 2 has a U-section which is open at the bottom, at least over a considerable part of its length.

Zwischen der Oberschale 1 und der Unterschale 2 sind im dargestellten Ausführungsbeispiel vier Tragfedern 3 angeordnet, die jeweils mit einem Ende gegen die Oberschale 1 und mit dem anderen Ende gegen die Unterschale 2 anliegen.In the illustrated embodiment, four suspension springs 3 are arranged between the upper shell 1 and the lower shell 2, each of which rests against the upper shell 1 at one end and against the lower shell 2 at the other end.

Des weiteren ist die Oberschale 1 mit der Unterschale 2 über im dargestellten Ausführungsbeispiel ebenfalls vier Gewindestäbe 4 verbunden.Furthermore, the upper shell 1 is connected to the lower shell 2 via four threaded rods 4 in the exemplary embodiment shown.

Der Gewindestab 4 hat einen oberschalenseitigen Endabschnitt, der durch eine in der Basis des U-förmigen Querschnitts der Oberschale 1 vorgesehene Ausnehmung in die nach oben offene Oberschale 1 vorsteht. Der genannte Endabschnitt ist an der Oberschale mittels einer oberen Mutter 5, die oberhalb der Basis des U-Querschnitts angeordnet ist, einer Unterlegscheibe 6, die zwischen der ersten Mutter 5 und der Basis angeordnet ist, und einer zweiten Mutter 7 befestigt, die unterhalb der Basis angeordnet und gegen diese verschraubt ist.The threaded rod 4 has an end section on the upper shell side, which protrudes into the upwardly open upper shell 1 through a recess provided in the base of the U-shaped cross section of the upper shell 1. Said end section is fastened to the upper shell by means of an upper nut 5, which is arranged above the base of the U-cross section, a washer 6, which is arranged between the first nut 5 and the base, and a second nut 7, which is located below the base and screwed against it.

Unterhalb der zweiten Mutter 7 ist auf dem Gewindestab 4 eine Kontermutter 8 angeordnet. Diese dient zur Fixierung einer Spannmutter 9, die unterhalb der Kontermutter 8 auf dem Gewindestab 4 angeordnet ist und in deren Unterseite ein Ende einer Torsionsfeder 10 eingebunden ist. Durch Abwärtsdrehung der Spannmutter 9 läßt sich die Torsionsfeder so vorspannen, daß sie eine Nachführmutter 11, in die ihr unteres Ende eingebunden ist, in Anlage an die Oberseite der Basis des U-förmigen Querschnitts der Unterschale 2 drückt.A lock nut 8 is arranged on the threaded rod 4 below the second nut 7. This serves to fix a clamping nut 9, which is arranged below the lock nut 8 on the threaded rod 4 and in the underside of which one end of a torsion spring 10 is integrated. By turning the clamping nut 9 downwards, the torsion spring can be pretensioned in such a way that it presses a tracking nut 11, in which its lower end is integrated, into contact with the top of the base of the U-shaped cross section of the lower shell 2.

Bei der in den Figuren 1 und 2 dargestellten Ausführungsform der Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen ist an demjenigen Endabschnitt des Gewindestabs 4, der durch entsprechend in der Basis des U-Querschnitts der Unterschale 2 vorgesehene Ausführungen in die Unterschale 2 vorsteht, eine Transportsicherungsmutter 12 vorgesehen, mittels der die Oberschale 1 und die Unterschale 2 während ihres Transports zum Einsatzort zusammengehalten werden. Zwischen der Transportsicherungsmutter 12 und der Basis des U-Querschnitts der Unterschale 2 ist eine Unterlegscheibe 13 angeordnet.In the embodiment of the device for preventing damage to buildings in areas of ground movement shown in FIGS. 1 and 2, one end portion of the threaded rod 4, which protrudes into the lower shell 2 by designs provided in the base of the U-cross section of the lower shell 2, is one Transport lock nut 12 is provided, by means of which the upper shell 1 and the lower shell 2 are held together during their transport to the place of use. A washer 13 is arranged between the transport securing nut 12 and the base of the U cross section of the lower shell 2.

Beim Einbau der Vorrichtung in entsprechend am Gebäude vorgesehene Ausnehmungen werden die Transportsicherungsmuttern 12 entfernt. Nach der Justierung der Federhöhen der Tragfedern 3 entsprechend den statischen Berechnungen wird die Torsionsfeder 10, die an ihrem oberen Ende in die Spannmutter 9 und an ihrem unteren Ende in die Nachführmutter 11 eingebunden ist, durch Drehung der Spannmutter 9 auf dem Gewindestab 4 so hoch wie möglich vorgespannt und mit der darüber auf dem Gewindestab 4 angeordneten Kontermutter 8 festgesetzt. Hierdurch wird erreicht, daß die Tragfedern 3 der Vorrichtungen unter Lastzuwachs sich nicht mehr einsenken können; den Lastanteil aus dem Lastzuwachs tragen die Gewindestäbe 4 direkt von der Oberschale 1 in die Unterschale 2 ab.When the device is installed in recesses provided on the building, the transport lock nuts become 12 removed. After adjusting the spring heights of the suspension springs 3 according to the static calculations, the torsion spring 10, which is integrated at its upper end in the clamping nut 9 and at its lower end in the tracking nut 11, by turning the clamping nut 9 on the threaded rod 4 as high as biased and fixed with the lock nut 8 arranged above it on the threaded rod 4. This ensures that the suspension springs 3 of the devices can no longer sink under increased load; the load portion from the load increase is carried off by the threaded rods 4 directly from the upper shell 1 into the lower shell 2.

Für den Fall, daß sich bei einer Nachjustierung der Abstand zwischen der Oberschale 1 und der Unterschale 2 planmäßig ändert oder der Abstand durch Absinken des Fundaments aufgrund einer Bodenbewegung zunimmt, führt die Torsionsfeder 10 aufgrund ihrer inneren Spannung die Nachführmutter 11 auf dem Gewindestab 4 nach unten nach, so daß zu jeder Zeit ein Kraftschluß zwischen der Oberschale 1 und der Unterschale 2 gewährleistet ist.In the event that the distance between the upper shell 1 and the lower shell 2 changes as planned during a readjustment or the distance increases due to the foundation falling due to ground movement, the torsion spring 10 guides the guide nut 11 on the threaded rod 4 downward due to its internal tension after, so that a frictional connection between the upper shell 1 and the lower shell 2 is guaranteed at all times.

Mittels der vorstehend beschriebenen Selbstarretiervorrichtung aus der Kontermutter 8, der Spannmutter 9, der den Gewindestab 4 schraubenförmig umgebenden Torsionsfeder 10 und der Nachführmutter 11 werden die sonst unbedingt erforderlichen Hilfsmittel vermieden, deren Anwendung insbesondere den Nachteil hat, daß hierzu jeweils eigene Kammern, Fundamente oder Sockel auf gemeinsamen Fundamenten erstellt werden müssen.By means of the self-locking device described above, consisting of the lock nut 8, the clamping nut 9, the torsion spring 10 surrounding the threaded rod 4 in a helical manner and the tracking nut 11, the aids which are otherwise absolutely necessary are avoided, the use of which in particular has the disadvantage that separate chambers are provided for this purpose, Foundations or bases on common foundations must be created.

Claims (4)

Vorrichtung zur Schadensverhinderung an Gebäuden in Bereichen von Bodenbewegungen, mit einer Oberschale (1) und einer Unterschale (2), zwischen denen zumindest eine Tragfeder (3) angeordnet ist, die entsprechend der Veränderung der Bodenpressung aufgrund der abnormalen Bodenbewegung vorspannbar ist, gekennzeichnet durch zumindest einen Gewindestab (4), der zwischen der Ober- (1) und der Unterschale (2) parallel zur Tragfeder (3) angeordnet ist, in die Ober- (1) und Unterschale (2) vorsteht und an einem Endabschnitt an der Unter- (2) oder der Oberschale (1) fest angebracht ist, wobei am anderen Endabschnitt des Gewindestabs (4) eine Nachführmutter (11) vorgesehen ist, die mit einer Seite in Anlage an die Ober(1) oder Unterschale (2) bringbar und an der anderen Seite mit einer Torsionsfeder (10) in Eingriff ist, mittels der die Nachführmutter (11) in Anlage an die Ober- (1) oder Unterschale (2) vorspannbar ist und die an ihrem nachführmutterfernen Ende mit einer durch eine Kontermutter (8) gesicherten Spannmutter (9) in Eingriff ist.Device for preventing damage to buildings in areas of ground movement, with an upper shell (1) and a lower shell (2), between which at least one suspension spring (3) is arranged, which can be preloaded in accordance with the change in the ground pressure due to the abnormal ground movement, characterized by at least a threaded rod (4) which is arranged between the upper (1) and the lower shell (2) parallel to the supporting spring (3), projects into the upper (1) and lower shell (2) and has an end section on the lower (2) or the upper shell (1) is firmly attached, a guide nut (11) being provided at the other end section of the threaded rod (4), which can be brought into contact with the upper (1) or lower shell (2) and attached to one side the other side is engaged with a torsion spring (10), by means of which the guide nut (11) can be pretensioned in abutment with the upper (1) or lower shell (2) and at its end remote from the guide nut with a lock nut ter (8) secured clamping nut (9) is engaged. Vorrichtung nach Anspruch 1, bei der an dem in die Ober- (1) bzw. Unterschale (2) vorstehenden Teil des die Nachführmutter (11) aufweisenden Endabschnitts des Gewindestabs (4) eine Transportsicherungsmutter (12) angeordnet ist.Device according to Claim 1, in which a transport securing nut (12) is arranged on the part of the end section of the threaded rod (4) which has the guide nut (11) and projects into the upper (1) or lower shell (2). Vorrichtung nach Anspruch 1 oder 2, bei der der Gewindestab (4) an der Oberschale (1) fest angebracht ist.Apparatus according to claim 1 or 2, wherein the threaded rod (4) is fixedly attached to the upper shell (1). Vorrichtung nach einem der Ansprüche 1 bis 3, bei der die Vorrichtung vier Gewindestäbe (4) aufweist.Device according to one of claims 1 to 3, wherein the device has four threaded rods (4).
EP93102900A 1992-02-27 1993-02-25 Device for damage prevention on buildings in areas with earthquakes Expired - Lifetime EP0557979B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4205987 1992-02-27
DE4205987A DE4205987A1 (en) 1992-02-27 1992-02-27 DEVICE FOR PREVENTING DAMAGE TO BUILDINGS IN GROUND MOVEMENT AREAS

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EP0557979A1 true EP0557979A1 (en) 1993-09-01
EP0557979B1 EP0557979B1 (en) 1996-07-24

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US6351915B1 (en) * 2000-04-28 2002-03-05 S&P Resources, Inc. Coupling apparatus with parallel members joined by an elastic or spring element pivotally interfacing a drywall and curtain wall mullion
US7028432B2 (en) * 2003-05-03 2006-04-18 Kinetics Noise Control, Inc. Compact ceiling isolation hanger
US20190301194A1 (en) * 2016-10-10 2019-10-03 Venkata Rangarao Vemuri Buckling Resistant Spring Clad Bar

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053226A (en) * 1934-09-01 1936-09-01 Charles W Mowry Earthquake resistant structure
GB984789A (en) * 1960-06-25 1965-03-03 Brockhouse Steel Structures Lt Improvements relating to resilient bracing members in constructional frameworks
GB1021311A (en) * 1961-01-26 1966-03-02 Brockhouse Steel Structures Lt Improvements in or relating to structural frameworks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115824A (en) * 1937-01-04 1938-05-03 Mcrorey Roy Lee Automatic floor joist adjuster

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053226A (en) * 1934-09-01 1936-09-01 Charles W Mowry Earthquake resistant structure
GB984789A (en) * 1960-06-25 1965-03-03 Brockhouse Steel Structures Lt Improvements relating to resilient bracing members in constructional frameworks
GB1021311A (en) * 1961-01-26 1966-03-02 Brockhouse Steel Structures Lt Improvements in or relating to structural frameworks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6351915B1 (en) * 2000-04-28 2002-03-05 S&P Resources, Inc. Coupling apparatus with parallel members joined by an elastic or spring element pivotally interfacing a drywall and curtain wall mullion
US7028432B2 (en) * 2003-05-03 2006-04-18 Kinetics Noise Control, Inc. Compact ceiling isolation hanger
US20190301194A1 (en) * 2016-10-10 2019-10-03 Venkata Rangarao Vemuri Buckling Resistant Spring Clad Bar
US10968653B2 (en) * 2016-10-10 2021-04-06 Venkata Rangarao Vemuri Buckling resistant spring clad bar

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DE59303284D1 (en) 1996-08-29
EP0557979B1 (en) 1996-07-24

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