EP0136999B1 - Shoring of the lower part of a spherical metal tank for positioning on a concrete foundation - Google Patents

Shoring of the lower part of a spherical metal tank for positioning on a concrete foundation Download PDF

Info

Publication number
EP0136999B1
EP0136999B1 EP19840890168 EP84890168A EP0136999B1 EP 0136999 B1 EP0136999 B1 EP 0136999B1 EP 19840890168 EP19840890168 EP 19840890168 EP 84890168 A EP84890168 A EP 84890168A EP 0136999 B1 EP0136999 B1 EP 0136999B1
Authority
EP
European Patent Office
Prior art keywords
spherical
supports
supporting
ring
support
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.)
Expired
Application number
EP19840890168
Other languages
German (de)
French (fr)
Other versions
EP0136999A2 (en
EP0136999A3 (en
Inventor
Heinrich Dipl.-Ing. Eichenauer
Johann Krumphuber
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0136999A2 publication Critical patent/EP0136999A2/en
Publication of EP0136999A3 publication Critical patent/EP0136999A3/xx
Application granted granted Critical
Publication of EP0136999B1 publication Critical patent/EP0136999B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • E04H7/04Containers for fluids or gases; Supports therefor mainly of metal
    • E04H7/14Containers for fluids or gases; Supports therefor mainly of metal ball-shaped

Definitions

  • the invention relates to an assembly support for inserting the lower spherical cap of a metallic ball container into a concrete bed, between which and the spherical cap a removable support ring for the sole cap and removable supports for the ring zones of the spherical cap connected to the sole cap or to the ring zones already connected to the sole cap attached ring zone sections are provided.
  • Spherical pressure vessels such as those used in reactor construction, are usually stored in a concrete bed, through which the loads that occur are transferred.
  • the lower spherical cap of the ball container is first built up in zones on a mounting frame on the concrete bed, after which water is let into the concrete bed, so that the floating spherical cap after removal of the mounting frame by letting the water out on spacers provided in the concrete bed can be lowered.
  • the remaining space between the spherical cap and the concrete bed is then poured with concrete in order to ensure that the spherical cap lies firmly on the concrete bed.
  • the assembly frame generally consists of a support ring for the individual ring zones resulting from the construction of the calotte from individual sheets, the sole cap first being placed on a support ring, while the sheets of the subsequent ring zones are attached to the successively assembled and through the assembly steps truss-like stiffeners are supported to form closed rings.
  • the disadvantage of these known assembly scaffolds is first of all that the comparatively large amount of material required due to the framework-like stiffeners, which naturally has a significant influence on the workload for the scaffold erection.
  • the introduction and removal of equipment or the removal of the inner support rings before the floating process is made considerably more difficult by the supports connected to form rings.
  • the invention is therefore based on the object to avoid these deficiencies and to improve an assembly support of the type described in such a way that not only the workload for scaffolding erection and dismantling is considerably reduced due to comparatively simple, little material use of supports, but also that Occurrence of additional constraining forces can be avoided.
  • the invention solves the problem in that the supports consist of individual, distributed over the circumference, radially aligned with respect to the center of the ball container pendulum supports and that at least three additional, evenly distributed over the circumference are provided for the uppermost ring zone of the calotte are supported only in the direction of the respective vertical plane through the center of the spherical container on the uppermost ring zone and on the concrete bed.
  • the provision of the individual pendulum supports also offers the advantage of a low use of material and good accessibility, because there is no need for the reinforcing rings.
  • the additional supports evenly distributed over the circumference, in the area of the uppermost ring zone of the spherical cap ensure that the torque loads that occur are removed when the supporting ring for the sole cap of the spherical cap is removed, because these supports are pivotally supported only in the direction of the respective vertical plane through the center of the ball container .
  • the spherical cap resting only on the pendulum supports could turn around a vertical axis through the center of the ball if these additional supports were not provided. Since the torques that occur about such a vertical axis are comparatively low, three or four of these additional supports, which can only be pivoted in the direction of the respective vertical plane through the center of the ball container, are generally sufficient to dissipate these loads.
  • Torques around a vertical axis are absorbed by the center of the spherical container with simple constructional means can be, the supports pivotable exclusively in the direction of the associated vertical plane through the center of the ball container each consist of two support arms which are arranged at a mutual distance in the direction of their pivot axes and are connected to one another in a torsionally rigid manner. Due to their mutual distance in the direction of their swivel axes, the torsionally rigid support arms form an effective support of the spherical cap against a rotational movement about the vertical axis through the center of the ball container, without preventing thermal expansion or the like, because these supports are related to a horizontal tangent the spherical cap can be swiveled.
  • the possible swivel axis is also specified by the distance.
  • a corresponding support against the calotte on the one hand and the concrete bed on the other hand is essential for the function of these additional supports.
  • the two support arms have pivotable support plates at their ends for support on the concrete bed or on the spherical cap of the ball container, good force introduction can be ensured without impairing the pivotability.
  • the support plates must be connected to the calotte in a manner that prevents them from sliding. This requirement can be met with simple means in that the support plates are held so that they cannot move between dome-fixed stops.
  • the lower cap 2 of a spherical container to be inserted into a concrete bed 1 is composed of a sole cap 3 and supporting rings 4, 5 and 6 attached to it.
  • This cap 2 rests on an assembly support which has a support ring 7 for the sole cap 3 and a plurality of pendulum supports distributed over the circumference for the ring zones 4, 5 and 6 attached to the sole cap 3.
  • at least three additional supports 9 are provided in the area of the uppermost ring zone 6 of the spherical cap 2, which are distributed evenly over the circumference of this ring 6 and can be pivoted on the concrete bed 2 only in the direction of a vertical plane through the center of the ball container. and are supported on the spherical cap 2.
  • these additional supports 9 consist of two support arms 10, which are arranged at a distance perpendicular to the vertical plane through the center of the sphere and are connected to one another by diagonal struts 11 in a torsionally rigid manner.
  • These two support arms 10 carry pivotable support plates 12 and 13 at their ends, by means of which the supports 9 are supported on the concrete bed 1 and on the calotte 2.
  • the support plates 12 and 13 are each provided with pairs of tabs 14, between which the support arms 10 or the like by means of bolts. are held, which protrude through openings 15 in the tabs 14 with appropriate play. Since the support arms 10 have convex end faces 16 (FIG. 3) and are supported via these end faces 16 on the support plates 12 and 13, the pivotability of the supports 9 is ensured in the extent of the play of the screw bolts in one direction, without the screw bolts with the Load supporting forces.
  • the additional supports 9 can fulfill their task, namely to intercept occurring torques about the vertical axis of the spherical cap 2, a displaceable connection between the supporting plates 13 and the spherical cap 2 must be ensured. 2 stops 17 for the support plates 13 are attached to the ring zone 6 of the spherical cap, the required connection between the supports 9 and the spherical cap 2 can be easily established.
  • the support ring 7 for the sole cap 3 of the calotte 2 is first introduced into the prepared concrete bed 1.
  • This support ring 7 can be adjusted in height with the aid of a hydraulic lifting device 18, which not only permits precise adjustment of the sole cap 3, but also rapid removal of the support ring 7.
  • the sole cap 3 resting on the support ring 7 must be positioned before the sections are attached following ring zone 4 are connected to the support ring 7 so that torques can be absorbed around the center of the ball container via the support ring 7. All resulting forces, whose lines of action go through the center of the ball, as is the case, for example, with the weight load, can be dissipated by the radially aligned pendulum supports.
  • the non-displaceable connection is achieved in the exemplary embodiment by ropes 19 which are tensioned between the lower sole cap 3 and the support ring 7 or the lifting device 18.
  • the ring zone 4 is welded in sections and supported by radial pendulum supports 8, which can be designed very differently, since it is only important to avoid torque transmission.
  • the adjoining ring zone 5 is then built up on this ring zone 4, with again pendulum supports 8 serving to support the mounting of the ring zone.
  • the torque load caused by one-sided attachment of the ring zone sections can be easily removed via the support ring 7 on the concrete bed 1.
  • the uppermost annular zone 6 must additionally be secured with torque-absorbing supports 9 in order to prevent the spherical cap 2 from rotating about its vertical axis when the supporting ring 7 is removed.
  • the pendulum supports 8 can only remove radial forces such as occur due to their own weight or due to wind loads, which has the advantage that no additional constraining forces can occur.
  • the pendulum supports 8 are first in the area of the ring zone 4, provided that these pendulum supports have not already been removed after the ring zone 5 has been attached, and the support ring 7 has to be removed, which can be carried out simply because between the pendulum supports 8 of the upper ring zones 5 and 6 for which there is sufficient space.
  • water can be pumped into the intermediate space 21, which carries the calotte 2 for the removal of the remaining supports 8 and 9. After these supports have been removed, the water pumped into the intermediate space 21 can be drained off via the line 22, the spherical cap 2 sinking into the concrete bed 1.
  • the position of the calotte 2 is determined during the lowering process by the guide blocks 20, which take over the function of the supports 9 with regard to the absorption of a torque load.
  • the spherical cap 2 is lowered until it comes to rest on spacers 23, which determine a pouring gap for a concrete layer, in order to ensure that the spherical cap 2 is properly seated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pivots And Pivotal Connections (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Die Erfindung bezieht sich auf eine Montageabstützung zum Einsetzen der unteren Kalotte eines metallischen Kugelbehälters in ein Betonbett, zwischen dem und der Kalotte ein abnehmbarer Stützring für die Sohlkappe und abnehmbare Stützen für die an die Sohlkappe bzw. an die bereits mit der Sohlkappe verbundenen Ringzonen der Kalotte angesetzten Ringzonenabschnitte vorgesehen sind.The invention relates to an assembly support for inserting the lower spherical cap of a metallic ball container into a concrete bed, between which and the spherical cap a removable support ring for the sole cap and removable supports for the ring zones of the spherical cap connected to the sole cap or to the ring zones already connected to the sole cap attached ring zone sections are provided.

Kugelförmige Druckbehälter, wie sie beispielsweise im Reaktorbau Verwendung finden, sind üblicherweise in einem Betonbett gelagert, über das die auftretenden Lasten abgetragen werden. Zum Einsetzen in das vorbereitete Betonbett wird zunächst die untere Kalotte des Kugelbehälters auf einen Montagegerüst auf den Betonbett zonenweise aufgebaut, wonach in das Betonbett Wasser eingelassen wird, so daß die aufschwimmende Kalotte nach der Entfernung des Montagegerüstes durch ein auslassen des Wassers auf im Betonbett vorgesehens Abstandhalter abgesenkt werden kann. Der verbleibende Zwischenraum zwischen der Kalotte und dem Betonbett wird dann mit Beton ausgegossen, um ein sattes Aufliegen der Kalotte auf dem Betonbett sicherzustellen.Spherical pressure vessels, such as those used in reactor construction, are usually stored in a concrete bed, through which the loads that occur are transferred. To insert into the prepared concrete bed, the lower spherical cap of the ball container is first built up in zones on a mounting frame on the concrete bed, after which water is let into the concrete bed, so that the floating spherical cap after removal of the mounting frame by letting the water out on spacers provided in the concrete bed can be lowered. The remaining space between the spherical cap and the concrete bed is then poured with concrete in order to ensure that the spherical cap lies firmly on the concrete bed.

Das Montagerüst besteht im allgemeinen aus je einem Stützring für die einzelnen, sich durch den Aufbau der Kalotte aus einzelnem Blechen ergebenden Ringzonen, wobei zunächst die Sohlkappe auf einem Stützring aufgesetzt wird, während die Bleche der anschließenden Ringzonen entsprechend dem Montagefortschritt an den nacheinander aufgebautem und durch fachwerkartige Aussteifungen zu geschlossenem Ringen verbundenen Stützen abgestützt werden. Nachteilig bei diesen bekannten Montagegerüsten ist zunächst, daß durch die fachwerkartigen Aussteifungen ein vergleichsweise großer Materialeinsatz erforderlich ist, der naturgemäß den einzurechnenden Arbeitszeitaufwand für den Gerüstaufbau maßgeblich beeinflußt. Außerdem wird das Ein- und Ausbringen von Gerätschaften oder das Entfernen der inneren Stützringe vor dem Aufschwimmvorgang durch die zu Ringen verbundenen Stützen erheblich erschwert. Darüber hinaus ist wegen der Abstützung mit zusätzlichen Zwangskräften zufolge von Wärmedehnungen und einseitigen Belastungen, beispielsweise beim Ausbau der inneren Stützringe, zu rechnen. Schließlich werden die Bleche der Ringzonen nicht satt auf den Stützringen aufliegen, weil stets ein bestimmter Toleranzbereich vorhanden ist.The assembly frame generally consists of a support ring for the individual ring zones resulting from the construction of the calotte from individual sheets, the sole cap first being placed on a support ring, while the sheets of the subsequent ring zones are attached to the successively assembled and through the assembly steps truss-like stiffeners are supported to form closed rings. The disadvantage of these known assembly scaffolds is first of all that the comparatively large amount of material required due to the framework-like stiffeners, which naturally has a significant influence on the workload for the scaffold erection. In addition, the introduction and removal of equipment or the removal of the inner support rings before the floating process is made considerably more difficult by the supports connected to form rings. In addition, due to the support, additional constraining forces due to thermal expansion and one-sided loads, for example when removing the inner support rings, must be expected. Finally, the sheets of the ring zones will not lie snugly on the support rings because there is always a certain tolerance range.

Der Erfindung liegt somit die Aufgabe zugrunde, diese Mängel zu vermeiden und eine Montageabstützung der eingangs geschilderten Art so zu verbessern, daß nicht nur der Arbeitszeitaufwand für den Gerüstauf- und -abbau auf Grund vergleichsweise einfacher, wenig Materialeinsatz erforderlicher Stützen wesentlich verkürzt, sondern auch das Auftreten zusätzlicher Zwangskräfte vermieden werden kann.The invention is therefore based on the object to avoid these deficiencies and to improve an assembly support of the type described in such a way that not only the workload for scaffolding erection and dismantling is considerably reduced due to comparatively simple, little material use of supports, but also that Occurrence of additional constraining forces can be avoided.

Die Erfindung löst die gestellte Aufgabe dadurch, daß die Stützen aus einzelnen, über den Umfang verteilten, bezüglich des Mittelpunktes des Kugelbehälters radial ausgerichteten Pendelstützen bestehen und daß für die oberste Ringzone der Kalotte wenigstens drei zusätzliche, gleichmäßig über den Umfang verteilte Stützen vorgesehen sind, die ausschließlich in Richtung der jeweiligen Vertikalebene durch den Mittelpunkt des Kugelbehälters verschwenkbar an der obersten Ringzone und am Betonbett abgestützt sind.The invention solves the problem in that the supports consist of individual, distributed over the circumference, radially aligned with respect to the center of the ball container pendulum supports and that at least three additional, evenly distributed over the circumference are provided for the uppermost ring zone of the calotte are supported only in the direction of the respective vertical plane through the center of the spherical container on the uppermost ring zone and on the concrete bed.

Durch die Verwendung von radialen Pendelstützen können alle auftretenden Kräfte, deren Wirkungslinien durch den Kugelmittelpunkt gehen, über die Montageabstützung auf das Betonbett abgetragen werden, ohne Verschiebungen der Kalotte auf Grund des Montagevorganges oder von Temperaturschwankungen zu behindern, so daß daraus resultierende Zwangskräfte vermieden werden. Es müssen daher lediglich Momentbelastungen um den Kugelmittelpunkt aufgenommen werden, wie sie beispielsweise durch unsymmetrische Belastungen beim abschnittsweisen Aufbau der einzelnen Ringzonen auftreten. Diese Drehmomentbelastung kann ohne weiteres vom Stützring für die Sohlkappe der Kalotte übernommen werden, wenn dieser Stützring verschiebefest mit der Sohlkappe verbunden ist, was beispielsweise durch Seile oder Zugstangen erfolgen kann.Through the use of radial pendulum supports, all forces that occur, the lines of action of which go through the center of the ball, can be transferred to the concrete bed via the assembly support without hindering displacements of the calotte due to the assembly process or from temperature fluctuations, so that the resulting forces are avoided. It is therefore only necessary to absorb moment loads around the center of the ball, such as occur, for example, due to asymmetrical loads when the individual ring zones are built up in sections. This torque load can easily be taken over by the support ring for the base cap of the calotte if this support ring is connected to the base cap in a manner such that it cannot move, which can be done, for example, by means of ropes or tie rods.

Das Vorsehen vom einzelnen Pendelstützen bietet darüber hinaus den Vorteil eines geringen Materialeinsatzes und einer guten Zugänglichkeit, weil die Stützringe bildenden Ausfachungen entfallen.The provision of the individual pendulum supports also offers the advantage of a low use of material and good accessibility, because there is no need for the reinforcing rings.

Die zusätzlichen, gleichmäßig über den Umfang verteilten Stützen im Bereich der obersten Ringzone der Kalotte stellen das Abtragen der auftretenden Drehmomentbelastungen beim Ausbau des Stützringes für die Sohlkappe der Kalotte sicher, weil diese Stützen ausschließlich in Richtung der jeweiligen Vertikalebene durch den Mittelpunkt des Kugelbehälters verschwenkbar abgestützt sind. Die lediglich auf den Pendelstützen aufruhende Kalotte könnte sich ja um eine vertikale Achse durch den Kugelmittelpunkt verdrehen, wenn diese zusätzlichen Stützen nicht vorgesehen wären. Da die auftretenden Drehmomente um eine solche Vertikalachse vergleichsweise gering sind, reichen im allgemeinen drei oder vier dieser zusätzlichen, nur in Richtung der jeweiligen Vertikalebene durch den Mittelpunkt des Kugelbehälters verschwenkbaren Stützen zum Abtragen dieser Belastungen aus.The additional supports, evenly distributed over the circumference, in the area of the uppermost ring zone of the spherical cap ensure that the torque loads that occur are removed when the supporting ring for the sole cap of the spherical cap is removed, because these supports are pivotally supported only in the direction of the respective vertical plane through the center of the ball container . The spherical cap resting only on the pendulum supports could turn around a vertical axis through the center of the ball if these additional supports were not provided. Since the torques that occur about such a vertical axis are comparatively low, three or four of these additional supports, which can only be pivoted in the direction of the respective vertical plane through the center of the ball container, are generally sufficient to dissipate these loads.

Damit Drehmomente um eine vertikale Achse durch den Mittelpunkt des Kugelbehälters mit einfachen konstruktiven Mitteln abgefangen werden können, können die ausschließlich in Richtung der zugehörigen Vertikalebene durch den Mittelpunkt des Kugelbehälters verschwenkbaren Stützen jeweils aus zwei Stützarmen bestehen, die mit gegenseitigem Abstand in Richtung ihrer Schwenkachsen angeordnet und verwindungssteif miteinander verbunden sind. Die verwindungssteif miteinander verbundenen Stützarme bilden auf Grund ihres gegenseitigen Abstandes in Richtung ihrer Schwenkachsen eine wirksame Abstützung der Kalotte gegenüber einer Drehbewegung um die Vertikalachse durch den Mittelpunkt des Kugelbehälters, ohne Wärmedehnungen od. dgl. zu verhindern, weil ja diese Stützen bezüglich einer horizontalen Tangente an die Kugelkalotte schwenkbar sind. Durch den Abstand wirde außerdem die mögliche Schwenkachse vorgegeben.Torques around a vertical axis are absorbed by the center of the spherical container with simple constructional means can be, the supports pivotable exclusively in the direction of the associated vertical plane through the center of the ball container each consist of two support arms which are arranged at a mutual distance in the direction of their pivot axes and are connected to one another in a torsionally rigid manner. Due to their mutual distance in the direction of their swivel axes, the torsionally rigid support arms form an effective support of the spherical cap against a rotational movement about the vertical axis through the center of the ball container, without preventing thermal expansion or the like, because these supports are related to a horizontal tangent the spherical cap can be swiveled. The possible swivel axis is also specified by the distance.

Besonders einfache Konstruktionsverhältnisse ergeben sich, wenn die beiden Stützarme zumindest im wesentlichen parallel verlaufen und durch Diagonalstreben miteinander verbunden sind.Particularly simple constructional relationships result if the two support arms run at least substantially parallel and are connected to one another by diagonal struts.

Wesentlich für die Funktion dieser zusätzlichen Stützen ist eine entsprechende Abstützung gegenüber der Kalotte einerseits und dem Betonbett anderseits. Tragen die beiden Stützarme an ihren Enden verschwenkbare Stützplatten zur Abstützung am Betonbett bzw. an der Kalotte des Kugelbehälters, so kann für eine gute Krafteinleitung gesorgt werden, ohne die Verschwenkbarkeit zu beeinträchtigen. Die Stützplatten müssen allerdings zu diesem Zweck verschiebefest mit der Kalotte verbunden sein. Diese Forderung kann mit einfachen Mitteln dadurch erfüllt werden, daß die Stützplatten zwischen kalottenfesten Anschlägen verschiebefest gehalten sind.A corresponding support against the calotte on the one hand and the concrete bed on the other hand is essential for the function of these additional supports. If the two support arms have pivotable support plates at their ends for support on the concrete bed or on the spherical cap of the ball container, good force introduction can be ensured without impairing the pivotability. For this purpose, the support plates must be connected to the calotte in a manner that prevents them from sliding. This requirement can be met with simple means in that the support plates are held so that they cannot move between dome-fixed stops.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

  • Fig. 1 eine erfindungsgemäße Montageabstützung zum Einsetzen der unteren Kalotten eines metallischen Kugelbehälters in ein Betonbett in einem schematischen Vertikalschnitt durch die Kalotte,
  • Fig. 2 eine der im Bereich der obersten Ringzone der Kalotte vorgesehenen, zusätzlichen Stützen zur Drehmonentaufnahme in einer Vorderansicht in einem größeren Maßstab,
  • Fig. 3 die Stütze nach Fig. 2 in einer Seitenansicht und die
  • Fig. 4 bis 7 die Montage einer Kugelkalotte mit Hilfe eines erfindungsgemäßen Montagegerüstes schematisch in verschiedenen Montageabschnitten.
The subject matter of the invention is shown in the drawing, for example. Show it
  • 1 is a mounting support according to the invention for inserting the lower spherical caps of a metallic ball container in a concrete bed in a schematic vertical section through the spherical cap,
  • 2 shows one of the additional supports provided in the area of the uppermost ring zone of the spherical cap for taking up torque in a front view on a larger scale,
  • Fig. 3 shows the support of FIG. 2 in a side view and
  • 4 to 7 the assembly of a spherical cap with the aid of an assembly scaffold according to the invention schematically in different assembly sections.

Wie Fig. 1 erkennen läßt, ist die in ein Betonbett 1 einzusetzende, untere Kalotte 2 eines Kugelbehälters aus einer Sohlkappe 3 und daran angesetzten Stützringen 4, 5 und 6 zusammengesetzt. Diese Kalotte 2 ruht auf einer Montageabstützung, die einen Stützring 7 für die Sohlkappe 3 und eine Mehrzahl von über den Umfang verteilten Pendelstützen für die an die Sohlkappe 3 angesetzten Ringzonen 4, 5 und 6 aufweist. Zusätzlich zu den Pendelstützen 8 sind im Bereich der obersten Ringzone 6 der Kalotte 2 wenigstens drei gleichmäßig über den Umfang dieser Ring 6 verteilte, zusätzliche Stützen 9 vorgesehen, die ausschließlich in Richtung einer Vertikalebene durch den Mittelpunkt des Kugelbehälters verschwenkbar am Betonbett 2 . und an der Kugelkalotte 2 abgestützt sind. Zu diesem Zweck bestehen diese zusätzlichen Stützen 9 aus zwei Stützarmen 10, die mit Abstand senkrecht zu der Vertikalebene durch den Kugelmittelpunkt angeordnet und durch Diagonalstreben 11 verwindungssteif miteinander verbunden sind. Diese beiden Stützarme 10 tragen an ihren Enden verschwenkbare Stützplatten 12 und 13, über die die Stützen 9 am Betonbett 1 bzw. an der Kalotte 2 abgestützt sind. Die Stützplatten 12 und 13 sind mit jeweils paarweise angeordneten Laschen 14 versehen, zwischen denen die Stützarme 10 durch Schraubbolzen od.dgl. gehalten sind, die mit entsprechendem Spiel durch Durchtrittsöffnungen 15 in den Laschen 14 ragen. Da die Stützarme 10 konvexe Stirnflächen 16 aufweisen (Fig. 3) und sich über diese Stirnflächen 16 an den Stützplatten 12 und 13 abstützen, ist die Verschwenkbarkeit der Stützen 9 im Ausmaß des Spiels der Schraubbolzen in der einen Richtung sichergestellt, ohne die Schraubbolzen mit den Stützkräften zu belasten.As can be seen in FIG. 1, the lower cap 2 of a spherical container to be inserted into a concrete bed 1 is composed of a sole cap 3 and supporting rings 4, 5 and 6 attached to it. This cap 2 rests on an assembly support which has a support ring 7 for the sole cap 3 and a plurality of pendulum supports distributed over the circumference for the ring zones 4, 5 and 6 attached to the sole cap 3. In addition to the pendulum supports 8, at least three additional supports 9 are provided in the area of the uppermost ring zone 6 of the spherical cap 2, which are distributed evenly over the circumference of this ring 6 and can be pivoted on the concrete bed 2 only in the direction of a vertical plane through the center of the ball container. and are supported on the spherical cap 2. For this purpose, these additional supports 9 consist of two support arms 10, which are arranged at a distance perpendicular to the vertical plane through the center of the sphere and are connected to one another by diagonal struts 11 in a torsionally rigid manner. These two support arms 10 carry pivotable support plates 12 and 13 at their ends, by means of which the supports 9 are supported on the concrete bed 1 and on the calotte 2. The support plates 12 and 13 are each provided with pairs of tabs 14, between which the support arms 10 or the like by means of bolts. are held, which protrude through openings 15 in the tabs 14 with appropriate play. Since the support arms 10 have convex end faces 16 (FIG. 3) and are supported via these end faces 16 on the support plates 12 and 13, the pivotability of the supports 9 is ensured in the extent of the play of the screw bolts in one direction, without the screw bolts with the Load supporting forces.

Damit die zusätzlichen Stützen 9 ihre Aufgabe erfüllen können, nämlich auftretende Drehmomente um die vertikale Achse der Kalotte 2 abzufangen, muß für eine verschiebefeste Verbindung zwischen den Stützplatten 13 und der Kalotte 2 gesorgt werden. Sind gemäß der Fig. 2 an der Ringzone 6 der Kalotte 2 Anschläge 17 für die Stützplatten 13 angebracht, so kann die erforderliche Verbindung zwischen den Stützen 9 und der Kalotte 2 einfach hergestellt werden.So that the additional supports 9 can fulfill their task, namely to intercept occurring torques about the vertical axis of the spherical cap 2, a displaceable connection between the supporting plates 13 and the spherical cap 2 must be ensured. 2 stops 17 for the support plates 13 are attached to the ring zone 6 of the spherical cap, the required connection between the supports 9 and the spherical cap 2 can be easily established.

Wie den Fig. 4 bis 7 entnommen werden kann, wird in das vorbereitete Betonbett 1 zunächst der Stützring 7 für die Sohlkappe 3 der Kalotte 2 eingebracht. Dieser Stützring 7 kann mit Hilfe einer hydraulischen Hubeinrichtung 18 der Höhe nach verstellt werden, was nicht nur ein genaues Justieren der Sohlkappe 3 erlaubt, sondern auch einen raschen Ausbau des Stützringes 7. Die auf dem Stützring 7 aufruhende Sohlkappe 3 muß vor dem abschnittsweisen Ansetzen der folgenden Ringzone 4 mit dem Stützring 7 verschiebefest verbunden werden, damit auftretende Drehmomente um den Mittelpunkt des Kugelbehälters über den Stützring 7 aufgenommen werden können. Alle resultierenden Kräfte, deren Wirkungslinien durch den Kugelmittelpunkt gehen, wie dies beispielsweise für die Gewichtsbelastung gilt, können durch die radial ausgerichteten Pendelstützen abgetragen werden.As can be seen from FIGS. 4 to 7, the support ring 7 for the sole cap 3 of the calotte 2 is first introduced into the prepared concrete bed 1. This support ring 7 can be adjusted in height with the aid of a hydraulic lifting device 18, which not only permits precise adjustment of the sole cap 3, but also rapid removal of the support ring 7. The sole cap 3 resting on the support ring 7 must be positioned before the sections are attached following ring zone 4 are connected to the support ring 7 so that torques can be absorbed around the center of the ball container via the support ring 7. All resulting forces, whose lines of action go through the center of the ball, as is the case, for example, with the weight load, can be dissipated by the radially aligned pendulum supports.

Die verschiebefeste Verbindung wird im Ausführungsbeispiel durch Seile 19 erreicht, die zwischen der unteren Sohlkappe 3 und dem Stützring 7 bzw. der Hubeinrichtung 18 gespannt werden. An die in dieser Weise abgestützte Sohlkappe 3 wird gemäß Fig. 5 die Ringzone 4 abschnittsweise angeschweißt und durch radiale Pendelstützen 8 abgestützt, die sehr unterschiedlich ausgebildet sein können, da es lediglich darauf ankommt, eine Drehmomentübertragung zu vermeiden. Auf diese Ringzone 4 wird dann die anschließende Ringzone 5 aufgebaut, wobei wiederum Pendelstützen 8 für die Montageabstützung der Ringzone dienen. Die durch einseitiges Ansetzen der Ringzonenäbschnitte auftretende Drehmomentbelastung kann über den Stützring 7 auf das Betonbett 1 ohne weiteres abgetragen werden. Nachdem die Kalotte 2 zonenweise unter jeweiliger Abstützung der neu angesetzten Ringzone mit Hilfe von Pendelstützen aufgebaut wurde, muß die oberste Ringzone 6 zusätzlich mit drehmomentaufnehmenden Stützen 9 gesichert werden, um beim Ausbau des Stützringes 7 eine Verdrehung der Kalotte 2 um ihre vertikale Achse zu verhindern.The non-displaceable connection is achieved in the exemplary embodiment by ropes 19 which are tensioned between the lower sole cap 3 and the support ring 7 or the lifting device 18. To those supported in this way 5, the ring zone 4 is welded in sections and supported by radial pendulum supports 8, which can be designed very differently, since it is only important to avoid torque transmission. The adjoining ring zone 5 is then built up on this ring zone 4, with again pendulum supports 8 serving to support the mounting of the ring zone. The torque load caused by one-sided attachment of the ring zone sections can be easily removed via the support ring 7 on the concrete bed 1. After the spherical cap 2 was built up zone by zone with the support of the newly attached ring zone with the aid of pendulum supports, the uppermost annular zone 6 must additionally be secured with torque-absorbing supports 9 in order to prevent the spherical cap 2 from rotating about its vertical axis when the supporting ring 7 is removed.

Die Pendelstützen 8 können ja nur radiale Kräfte, wie sie durch das Eigengewicht oder durch Windbelastungen auftreten, abtragen, was den Vorteil hat, daß keine zusätzlichen Zwangskräfte auftreten können.The pendulum supports 8 can only remove radial forces such as occur due to their own weight or due to wind loads, which has the advantage that no additional constraining forces can occur.

Nach der Fertigstellung der Kalotte 2 muß sie noch an vertikale Führungsböcke 20 angeschlossen werden, um die Kalotte 2 auch nach dem Abbau der Stützen 9 während des Absenkens in das Betonbett 1 sicher abzustützen. Zum Absenken der Kalotte sind zunächst die Pendelstützen 8 im Bereich der Ringzone 4, soferne diese Pendelstützen nicht bereits nach dem Ansetzen der Ringzone 5 entfernt worden sind, und der Stützring 7 auszubauen, was einfach durchgeführt werden kann, weil zwischen den Pendelstützen 8 der oberen Ringzonen 5 und 6 hiefür ausreichend Platz vorhanden ist. Die Pendelstützen 8, die im ihrer Länge mit Hilfe von Winden verstellt werden können, um eine genaue Justierung der Ringzonen zu gewährleisten, brauchen zum Ausbau lediglich entsprechend verkürzt und aus dem Zwischenraum 21 zwischen der Kalotte 2 und dem Betonbett 1 entfernt zu werden. Nach dem Entfernen der Abstützung im Bereich der Aufschwimmzone kann in dem Zwischenraum 21 Wasser gepumpt werden, das die Kalotte 2 zum Abbau der verbliebenen Stützen 8 und 9 trägt. Nach dem Ausbau dieser Stützen kann das in den Zwischenraum 21 gepumpte Wasser über die Leitung 22 abgelassen werden, wobei sich die Kalotte 2 in das Betonbett 1 absenkt. Die Lage der Kalotte 2 wird während des Absenkvorganges durch die Führungsböcke 20 bestimmt, die die Aufgabe der Stützen 9 bezüglich des Auffangens einer Drehmomentbelastung übernehmen. Die Kalotte 2 wird solange abgesenkt, bis sie auf Abstandhalter 23 zu liegen kommt, die einen Ausgußspalt für eine Betonschicht bestimmen, um ein satte Aufliegen der Kalotte 2 sicherzustellen.After the completion of the spherical cap 2, it must still be connected to vertical guide brackets 20 in order to securely support the spherical cap 2 even after the supports 9 have been removed during the lowering into the concrete bed 1. To lower the calotte, the pendulum supports 8 are first in the area of the ring zone 4, provided that these pendulum supports have not already been removed after the ring zone 5 has been attached, and the support ring 7 has to be removed, which can be carried out simply because between the pendulum supports 8 of the upper ring zones 5 and 6 for which there is sufficient space. The pendulum supports 8, which can be adjusted in length with the help of winches to ensure precise adjustment of the ring zones, need only be shortened accordingly for removal and removed from the space 21 between the calotte 2 and the concrete bed 1. After removal of the support in the area of the floating zone, water can be pumped into the intermediate space 21, which carries the calotte 2 for the removal of the remaining supports 8 and 9. After these supports have been removed, the water pumped into the intermediate space 21 can be drained off via the line 22, the spherical cap 2 sinking into the concrete bed 1. The position of the calotte 2 is determined during the lowering process by the guide blocks 20, which take over the function of the supports 9 with regard to the absorption of a torque load. The spherical cap 2 is lowered until it comes to rest on spacers 23, which determine a pouring gap for a concrete layer, in order to ensure that the spherical cap 2 is properly seated.

Claims (5)

1. A structure for supporting a spherical bottom segment (2) of a spherical metal container as said spherical bottom segment is to be inserted into a concrete bed (1), comprising a removable supporting ring (7), which is disposed between the concrete bed (1) and the spherical segment (2) and serves to support the bottom end can (3), and removable supports for supporting ring zone portions, which have been joined to the bottom end cap (3) of the spherical segment (2) or to ring zones (4, 5, 6) which have previously been joined to said bottom end cap (3), characterized in that the supports consist pf individual hinged supports (8), which are distributed around the periphery and extend radially with respect to the center of the spherical container, and at least three additional supports (9) are provided for the uppermost ring zone (6) of the spherical segment (2) and aresuppprted on the uppermost annular zone (6) and on the concrete bed (1) for a pivotal movement and equally distributed about the periphery and pivotally movable only in the direction of the associated vertical plane extending through the center of the spherical container.
2. A supporting structure according to claim 1, characterized in that each of the supports (9) which are pivotally movable only in the direction of the associated vertical plane extending through the center of the spherical container consists of two supporting arms (10), which are spaced apart in the direction of their pivotal axes and are interconnected by which are rigid in torsion.
3. A supporting structure according to claim 2, characterized in that the two supporting arms (10) are substantially parallel and interconnected by diagonal struts (11).
4. A supporting structure according to claim 2 or 3, characterized in that the pivoted supporting plates (12, 13) are carried by the two supporting arms (14) at their ends and serve to provide a support on the concrete bed (1) and on the spherical segment (2) of the spherical container, respectively.
5. A supporting structure according to claim 4., characterized in that the supporting plates (13) are held against a displacement between stops (17), which are fixed to the spherical segment.
EP19840890168 1983-10-06 1984-09-11 Shoring of the lower part of a spherical metal tank for positioning on a concrete foundation Expired EP0136999B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3541/83 1983-10-06
AT354183A AT380913B (en) 1983-10-06 1983-10-06 MOUNTING SUPPORT FOR INSERTING THE LOWER CALOTE OF A METALLIC BALL CONTAINER IN A CONCRETE BED

Publications (3)

Publication Number Publication Date
EP0136999A2 EP0136999A2 (en) 1985-04-10
EP0136999A3 EP0136999A3 (en) 1985-06-05
EP0136999B1 true EP0136999B1 (en) 1987-02-04

Family

ID=3551939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840890168 Expired EP0136999B1 (en) 1983-10-06 1984-09-11 Shoring of the lower part of a spherical metal tank for positioning on a concrete foundation

Country Status (4)

Country Link
EP (1) EP0136999B1 (en)
AT (1) AT380913B (en)
DE (1) DE3462350D1 (en)
FI (1) FI74104C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106015917A (en) * 2016-07-04 2016-10-12 无锡欧洛普科技有限公司 Liquefied natural gas transportation tank

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885601A (en) * 1931-05-23 1932-11-01 Chicago Bridge & Iron Co Container
NL242128A (en) * 1958-08-11
DE2212205B2 (en) * 1972-03-14 1980-05-14 Fried. Krupp Gmbh, 4300 Essen Welding fixture for large spherical gas container - with radial support strut and rope on eyes welded to existing and new shell plate
US4230255A (en) * 1978-09-21 1980-10-28 Teledyne, Inc. Protective shell for nuclear reactor and method for assembling the shell

Also Published As

Publication number Publication date
DE3462350D1 (en) 1987-03-12
FI843918L (en) 1985-04-07
ATA354183A (en) 1985-12-15
EP0136999A2 (en) 1985-04-10
EP0136999A3 (en) 1985-06-05
FI74104C (en) 1987-12-10
FI843918A0 (en) 1984-10-05
FI74104B (en) 1987-08-31
AT380913B (en) 1986-07-25

Similar Documents

Publication Publication Date Title
EP0054827B1 (en) Fuel assembly for a boiling water nuclear reator
DE2354540C2 (en) Reflector inserted between the thermal shield and the core of a reactor
DE2854155C2 (en)
DE2549746C2 (en) Sea platform
DE2817540A1 (en) CEILING REFLECTOR FOR A GAS-COOLED BALL HEAD REACTOR AND METHOD FOR REMOVING THE CEILING REFLECTOR
EP0136999B1 (en) Shoring of the lower part of a spherical metal tank for positioning on a concrete foundation
DE2063543A1 (en) Communication antenna
DE2525410C2 (en) Support structure for the lateral neutron shielding of a nuclear reactor core
CH632083A5 (en) Cooling tower.
DE2734550C3 (en) Device for lifting and supporting a structure
DE2458486C3 (en) Dismountable formwork and system for the production of a molded concrete block for hydraulic engineering
DE2514938A1 (en) ICE CUTTING DEVICE FOR AN DRILLING RIG
DE2445225C3 (en) Device for supporting a reactor pressure vessel
DE3718436A1 (en) Process for producing tower-like structures
DE2204688C2 (en) Support system for limiting the horizontal movement of a substantially rigid nuclear reactor core structure
DE3111652C2 (en)
DE10026109C1 (en) Clamping system holding platform to conical, reinforced concrete antenna mast comprises two flexible, circumferential clamping rings
DE2306959B1 (en) BURST PROTECTION DEVICE FOR THE PRESSURE VESSEL OF A NUCLEAR REACTOR
DE3136681C2 (en)
DE2243485A1 (en) METHOD OF TENSIONING A CABLE NET AND COOLING TOWER FORMING THE COAT OF A COOLING TOWER
DE1542420C3 (en) Pressure vessel, especially for nuclear reactors
DE1508055C (en) Blast furnace with a shaft resting on a support ring
DE1764008C (en) Support and support frame for an atomic nuclear reactor enclosed in a sealing container
DE1300988C2 (en) MODERATOR CORE STRUCTURE FOR NUCLEAR REACTORS
DE2756390A1 (en) PROCESS AND CLIMBING ARMOR FOR THE PRODUCTION OF HORIZONTAL REINFORCEMENT RINGS ON REINFORCED CONCRETE COOLING TOWER SHELLS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE LI NL SE

AK Designated contracting states

Designated state(s): BE CH DE LI NL SE

RTI1 Title (correction)
17P Request for examination filed

Effective date: 19851014

17Q First examination report despatched

Effective date: 19860725

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE LI NL SE

REF Corresponds to:

Ref document number: 3462350

Country of ref document: DE

Date of ref document: 19870312

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19890818

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890821

Year of fee payment: 6

Ref country code: CH

Payment date: 19890821

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890825

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890930

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900930

Ref country code: CH

Effective date: 19900930

Ref country code: BE

Effective date: 19900930

BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19900930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910601

EUG Se: european patent has lapsed

Ref document number: 84890168.2

Effective date: 19910527