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EP1409791B1 - Pneumatic construction or bridging element - Google Patents

Pneumatic construction or bridging element Download PDF

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Publication number
EP1409791B1
EP1409791B1 EP02708111A EP02708111A EP1409791B1 EP 1409791 B1 EP1409791 B1 EP 1409791B1 EP 02708111 A EP02708111 A EP 02708111A EP 02708111 A EP02708111 A EP 02708111A EP 1409791 B1 EP1409791 B1 EP 1409791B1
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EP
European Patent Office
Prior art keywords
bridge element
sheath
compression bars
webs
pneumatic structural
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 - Lifetime
Application number
EP02708111A
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German (de)
French (fr)
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EP1409791A1 (en
Inventor
Frederick E. To
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Prospective Concepts AG
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Prospective Concepts AG
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Publication of EP1409791A1 publication Critical patent/EP1409791A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/122—Inflatable or unreelable bridges ; Bridges with main load-supporting structure consisting only of non-rigid elements, e.g. cables
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/14—Floating bridges, e.g. pontoon bridges
    • E01D15/20—Floating bridges, e.g. pontoon bridges collapsible, expandable, inflatable or the like with main load supporting structure consisting only of non-rigid members

Definitions

  • the present invention relates to a pneumatic bridge element according to the preamble of claim 1.
  • Pneumatic bridge elements have become known variously. These usually consist of tubular inflatable hollow bodies with an outer skin made of reinforced plastic films. Special precautions are taken to prevent the occurrence To absorb tensile and compressive forces and a buckling of the building or To prevent bridge elements. Basically, the Pressure forces absorbed by one or more pressure rods, which either integrated in the tubular component or on these are grown outdoors. The tensile forces are outside Reinforcements created or integrated in the plastic film or special drawstrings added. Examples of such Building or bridge elements are known from PCT / CH01 / 00107, US 3,894,307, US 4,712,335, US 5,421,128.
  • the object to be achieved with the present invention is to create a pneumatic component or bridge element, which is able to absorb large loads that is used quickly and without any significant preparations, easily transported and manufactured inexpensively can be.
  • a shell 1 of the bridge element consists of a textile fabric less stretch and is with an elastomer or more generally: covered with a flexible plastic and therefore airtight made. About at least one shown schematically Valve 2 can cover this 1 with compressed air in the range of some 100 mB can be inflated.
  • Valve 2 can cover this 1 with compressed air in the range of some 100 mB can be inflated.
  • Between the top and bottom a large number of textile webs 3 are arranged on the cover 1 and with the material of the casing 1 by welding or bonded.
  • the webs 3 consist at least of a first layer 4 of a fabric, the course of the thread in relation rotated about 45 ° in the longitudinal direction of the bridge element is.
  • a second layer 5 of the same fabric has one with respect to the longitudinal direction of the bridge element parallel or perpendicularly arranged thread course.
  • the the layers 4, 5 forming tissue also has small elasticity.
  • two or more first layers 4 for the webs 3 use or only every second bridge with one or also to provide several second layers 5 in addition. critical is the use of at least a first layer 4 in each Bridge around the tensile forces from the bars 6 to the lower surface derive the envelope 1.
  • each pressure rod 6 runs in the plane defined by the web 3.
  • each push rod 6 is shown by a variety of tabs 7 out and in position held.
  • the tabs 7 are glued to the envelope 1 or welding.
  • pro Push rod 6 just a single one, covering its entire area extending tab 7 are provided.
  • pressure rods 6 can be metal rods or tubes, rods made of GRP, CFRP or Wood can be provided.
  • GRP GRP
  • CFRP CFRP
  • Wood Just like the elasticity of the textile The compressive strength of the bars depends on the materials due to the heavy stress of such a bridge element and the cost of it should.
  • a bridge element is set up and used for bridging a terrain cut 8.
  • a protective cover 9 reinforced which is also made of a flexible plastic exists, possibly reinforced by additional fabric reinforcements.
  • a slab 10 is here over the bars 6, for example, made of wooden planks, on the one hand, the shell 1 to protect, on the other hand around the on the bridge element distributed forces.
  • the limit load in the installation shown in Fig. 1 is limited by the pressure in the casing 1, the compressive strength of the bars 6 and the tensile and shear strength the webs 3. In cooperation with the pressure is too the size of the contact surfaces of the bridge element on the The underground is crucial.
  • Fig. 4 As an alternative to the type of support shown in FIG. 1 and the construction of the bridge element on the natural underground can occur that shown in Fig. 4. Is only shown one end of the bridge element; the other is complete equally trained.
  • the ends of the rods 6 are through a suitably shaped, transverse to the bars 6
  • Carrier 11 supports and the weight of the bridge element and its load is transferred from the beam 11 via two supports 12 derived to the underground.
  • the means of power transmission of the bars 6 on the carrier 11 are known per se and are therefore not described further.
  • essential to the invention is that the rods 6 have non-flying ends, which are only stressed on bending, but that the Forces that could give rise to a bend in shape are derived from tensile forces on the webs 3.
  • a ramp 13 is provided here, which articulated on the carriageway slab 10 in the area of the beam 11 is attached.
  • the pressure rods either over their entire length or at least at short intervals with the envelope 1 - preferably in the tabs 7 - to connect non-positively. These connections can by mechanical means such as clamping devices, but can also be done by gluing.
  • the bridge element can be placed anywhere there use where loads are carried by a flat element should be.
  • a roof for example Case.
  • FIG. On schematically represented building, its statics for example is formed by several steel beams 15 carries at least 1 as roof elements 16. These are connected by means of node elements 14 at one end Steel beams 15, the other with a so-called tanner beam 17 connected.
  • the node elements 14 take the place of Carrier 11 according to FIG. 4. Also the connections of the node elements 14 with the pressure rods 6 are known per se and Common civil engineer.
  • the tanner carrier 17 is connected to the Node elements extended to the roof elements 16, with which torques in the Gerberlich 17 as perpendicular to it acting forces can be transmitted to the pressure rods 6, where they are derived like normal loads. real this roof forms an actual three-joint arch one blocked joint on the side with the larger one Load.
  • the steel beams 15 are against each other with steel cables 18 guyed.
  • Other roof structures are a matter of course possible with such roof elements 16 where so less demanding static tasks are to be solved. Since the pressure forces in the pressure rods 6 here on the Node elements 14 are derived outwards, it is again only required at the ends of the pressure rods 6, these to connect with the cover in a force-fitting manner. Between the ends can the pressure rods 6 in the tabs 7 longitudinally movable his.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The structural or bridge element is constructed from a sheath (1) made of textile fabric, preferably of low extensibility, which is covered in an airtight manner with a flexible plastic. Secured longitudinally within the sheath 1 are a plurality of textile webs of low extensibility in an assembly of mutually parallel planes. The thread profile of first layers 4 of the fabric of the webs 3 is turned through approximately 45° in relation to the longitudinal axis of the bridge element. Second layers 5, each arranged within the same web 3 as the first layer 4, have a thread profile which is selected to be parallel and perpendicular to the longitudinal axis of the bridge element. Bars 6 are arranged on the outside of the sheath 1, respectively in each plane of the webs 3, and are secured within shackles on the sheath 1. The sheath 1 is supplied with compressed air within the range of a few 100 mB. Wherever the bridge element is laid onto the ground of a cutting 8, the sheath 1 is strengthened by means of a protective covering 9.

Description

Die vorliegende Erfindung betrifft ein pneumatisches Brückenelement nach dem Oberbegriff des Patentanspruches 1. Pneumatische Brückenelemente sind verschiedene bekannt geworden. Diese bestehen meist aus rohrförmigen aufblasbaren Hohlkörpern mit einer Aussenhaut aus armierten Kunststoff-Folien. Besondere Vorkehrungen werden getroffen, um die auftretenden Zug- und Druckkräfte aufzunehmen und ein Ausknicken der Bauoder Brückenelemente zu verhindern. Grundsätzlich werden die Druckkräfte durch einen oder mehrere Druckstäbe aufgenommen, welche entweder im rohrförmigen Bauteil integriert oder auf diese aussen angebaut werden. Die Zugkräfte werden durch aussen angelegte oder in die Kunststoff-Folie integrierte Armierungen oder besondere Zugbänder aufgenommen. Beispiele solcher Bau- oder Brückenelemente sind bekannt aus PCT/CH01/00107, US 3,894,307, US 4,712,335, US 5,421,128.The present invention relates to a pneumatic bridge element according to the preamble of claim 1. Pneumatic bridge elements have become known variously. These usually consist of tubular inflatable hollow bodies with an outer skin made of reinforced plastic films. Special precautions are taken to prevent the occurrence To absorb tensile and compressive forces and a buckling of the building or To prevent bridge elements. Basically, the Pressure forces absorbed by one or more pressure rods, which either integrated in the tubular component or on these are grown outdoors. The tensile forces are outside Reinforcements created or integrated in the plastic film or special drawstrings added. Examples of such Building or bridge elements are known from PCT / CH01 / 00107, US 3,894,307, US 4,712,335, US 5,421,128.

Allen diesen Bau- oder Brückenelementen ist gemeinsam, dass für den Bau einer eigentlichen Brücke oder einem ihr in der Aufgabenstellung verwandten Bauteils mehrere solcher rohrförmiger Elemente seitlich aneinandergebaut werden müssen und dass der Aufwand für deren Bau und Einsatz beträchtlich werden kann. Ein pneumatisches Brückenelement ist auch in GB1176941 beschrieben.All these building or bridge elements have in common that for the construction of an actual bridge or one of her in the Task related component several such tubular Elements must be assembled laterally and that the effort for their construction and use will be considerable can. A pneumatic bridge element is also described in GB1176941.

Die Aufgabe, die mit der vorliegenden Erfindung gelöst werden soll, ist die Schaffung eines pneumatischen Bau- oder Brückenelementes, welches grosse Lasten aufzunehmen im Stande ist, das schnell und ohne nennenswerte Vorbereitungen eingesetzt, leicht transportiert und kostengünstig hergestellt werden kann.The object to be achieved with the present invention is to create a pneumatic component or bridge element, which is able to absorb large loads that is used quickly and without any significant preparations, easily transported and manufactured inexpensively can be.

Die Lösung der gestellten Aufgabe ist wiedergegeben im kennzeichnenden Teil des Patentanspruches 1 hinsichtlich ihrer wesentlichen Merkmale, in den folgenden Patentansprüchen hinsichtlich weiterer vorteilhafter Ausbildungen.The solution to the problem is given in the characterizing Part of claim 1 with regard to their essential features, in the following claims with regard further advantageous training.

Anhand der beigefügten Zeichnung wird die Erfindung näher erläutert. Es zeigen

Fig. 1
ein erstes Ausführungsbeispiel des Brückenelementes im Längsschnitt,
Fig. 2
einen Querschnitt durch ein Brückenelement,
Fig. 3
eine Seitenansicht eines Details,
Fig. 4
eine Seitenansicht eines zweiten Ausführungsbeispiels,
Fig. 5
ein drittes Ausführungsbeispiel in einer schematischen Seitenansicht,
Fig. 6
ein viertes Ausführungsbeispiel in einer schematischen Seitenansicht.
The invention is explained in more detail with reference to the accompanying drawing. Show it
Fig. 1
a first embodiment of the bridge element in longitudinal section,
Fig. 2
a cross section through a bridge element,
Fig. 3
a side view of a detail,
Fig. 4
a side view of a second embodiment,
Fig. 5
a third embodiment in a schematic side view,
Fig. 6
a fourth embodiment in a schematic side view.

Im Längsschnitt durch ein erfindungsgemässes Brückenelement gemäss Fig. 1 und im Querschnitt gemäss Fig. 2 sind die wesentlichen Strukturmerkmale sichtbar. Eine Hülle 1 des Brückenelementes besteht aus einem textilen Gewebe kleiner Dehnbarkeit und ist mit einem Elastomer oder allgemeiner: einem flexiblen Kunststoff überzogen und damit luftdicht gemacht. Über mindestens ein schematisch dargestelltes Ventil 2 kann diese Hülle 1 mit Druckluft im Bereich einiger 100 mB aufgepumpt werden. Zwischen der Ober- und der Unterseite der Hülle 1 ist eine Vielzahl von textilen Stegen 3 angeordnet und mit dem Material der Hülle 1 durch Schweissen oder Kleben verbunden. Die Stege 3 bestehen mindestens aus einer ersten Lage 4 eines Gewebes, dessen Fadenverlauf in Bezug auf die Längsrichtung des Brückenelementes etwa 45° gedreht ist. Eine zweite Lage 5 eines gleichen Gewebes weist einen bezüglich der Längsrichtung des Brückenelementes einen parallel bzw. senkrecht angeordneten Fadenverlauf auf. Das die Lagen 4, 5 bildende Gewebe weist ebenfalls kleine Dehnbarkeit auf. Selbstverständlich ist es erfindungsgemäss zwei oder mehrere erste Lagen 4 für die Stege 3 zu verwenden oder nur jeden zweiten Steg mit einer oder auch mehreren zweiten Lagen 5 zusätzlich zu versehen. Entscheidend ist die Verwendung mindestens einer ersten Lage 4 in jedem Steg um die Zugkräfte von den Stäben 6 auf die untere Fläche der Hülle 1 abzuleiten. In longitudinal section through a bridge element according to the invention 1 and in cross section according to FIG. 2 are the essential ones Structural features visible. A shell 1 of the bridge element consists of a textile fabric less stretch and is with an elastomer or more generally: covered with a flexible plastic and therefore airtight made. About at least one shown schematically Valve 2 can cover this 1 with compressed air in the range of some 100 mB can be inflated. Between the top and bottom a large number of textile webs 3 are arranged on the cover 1 and with the material of the casing 1 by welding or bonded. The webs 3 consist at least of a first layer 4 of a fabric, the course of the thread in relation rotated about 45 ° in the longitudinal direction of the bridge element is. A second layer 5 of the same fabric has one with respect to the longitudinal direction of the bridge element parallel or perpendicularly arranged thread course. The the layers 4, 5 forming tissue also has small elasticity. Of course, it is according to the invention two or more first layers 4 for the webs 3 use or only every second bridge with one or also to provide several second layers 5 in addition. critical is the use of at least a first layer 4 in each Bridge around the tensile forces from the bars 6 to the lower surface derive the envelope 1.

Auf der Oberseite des Brückenelementes ist eine Vielzahl von Druckstäben 6 angeordnet, dergestalt, dass jeder Druckstab 6 in der durch den Steg 3 definierten Ebene verläuft. Wie in Fig. 3 gezeigt, wird jeder Druckstab 6 durch eine Vielzahl von Laschen 7 geführt und in seiner Position gehalten. Die Laschen 7 sind mit der Hülle 1 durch Kleben oder Schweissen verbunden. Selbstverständlich kann auch pro Druckstab 6 nur eine einzige, sich über seine ganze Fläche erstreckende Lasche 7 vorgesehen werden. Als Druckstäbe 6 können Metallstäbe oder -Rohre, Stäbe aus GFK, CFK oder auch Holz vorgesehen werden. Ebenso wie die Dehnbarkeit der textilen Materialien ist die Druckfestigkeit der Stäbe bedingt durch die kräftemässige Beanspruchung eines solchen Brückenelementes und der Kosten, die dafür aufgewendet werden sollen.On the top of the bridge element is a variety of Pressure rods 6 arranged such that each pressure rod 6 runs in the plane defined by the web 3. As in 3, each push rod 6 is shown by a variety of tabs 7 out and in position held. The tabs 7 are glued to the envelope 1 or welding. Of course, pro Push rod 6 just a single one, covering its entire area extending tab 7 are provided. As pressure rods 6 can be metal rods or tubes, rods made of GRP, CFRP or Wood can be provided. Just like the elasticity of the textile The compressive strength of the bars depends on the materials due to the heavy stress of such a bridge element and the cost of it should.

In Fig. 1 ist ein solches Brückenelement eingerichtet und eingesetzt für die Überbrückung eines Geländeeinschnittes 8. An den Stellen, wo das Brückenelement auf einer Unterlage aufliegt, ist es vorteilhafterweise mit einem Schutzüberzug 9 verstärkt, welcher ebenfalls aus einem flexiblen Kunststoff besteht, allenfalls durch weitere Gewebearmierungen verstärkt. Über die Stäbe 6 ist hier eine Fahrbahnplatte 10, beispielsweise aus Holzplanken gelegt, um einerseits die Hülle 1 zu schützen, anderseits um die auf das Brückenelement eingeleiteten Kräfte zu verteilen.In Fig. 1, such a bridge element is set up and used for bridging a terrain cut 8. At the places where the bridge element is on a base rests, it is advantageously with a protective cover 9 reinforced, which is also made of a flexible plastic exists, possibly reinforced by additional fabric reinforcements. A slab 10 is here over the bars 6, for example, made of wooden planks, on the one hand, the shell 1 to protect, on the other hand around the on the bridge element distributed forces.

Die Grenzbelastung in der in Fig. 1 dargestellten Einbauweise wird limitiert durch den in der Hülle 1 herrschenden Druck, die Druckfestigkeit der Stäbe 6 und die Zug- und Scherfestigkeit der Stege 3. Im Zusammenwirken mit dem Druck ist auch die Grösse der Auflageflächen des Brückenelementes auf dem Untergrund entscheidend.The limit load in the installation shown in Fig. 1 is limited by the pressure in the casing 1, the compressive strength of the bars 6 and the tensile and shear strength the webs 3. In cooperation with the pressure is too the size of the contact surfaces of the bridge element on the The underground is crucial.

Alternativ zur in Fig. 1 dargestellten Art der Auflage und der Bauweise des Brückenelementes auf den natürlichen Untergrund kann die in Fig. 4 gezeigte treten. Dargestellt ist nur das eine Ende des Brückenelementes; das andere ist völlig gleichartig ausgebildet. Die Enden der Stäbe 6 werden durch einen geeignet geformten, quer zu den Stäben 6 verlaufenden Träger 11 unterstützt und die Gewichtskraft des Brückenelementes und seiner Last wird vom Träger 11 über zwei Stützen 12 an den Untergrund abgeleitet. Die Mittel zur Kraftübertragung von den Stäben 6 auf den Träger 11 sind an sich bekannt und werden daher nicht weiter beschrieben. Erfindungswesentlich ist, dass die Stäbe 6 nicht fliegende Enden aufweisen, die nur auf Biegung beansprucht werden, sondern dass die Kräfte, die zu einer Biegung Anlass geben könnten, in Form von Zugkräften auf die Stege 3 abgeleitet werden.As an alternative to the type of support shown in FIG. 1 and the construction of the bridge element on the natural underground can occur that shown in Fig. 4. Is only shown one end of the bridge element; the other is complete equally trained. The ends of the rods 6 are through a suitably shaped, transverse to the bars 6 Carrier 11 supports and the weight of the bridge element and its load is transferred from the beam 11 via two supports 12 derived to the underground. The means of power transmission of the bars 6 on the carrier 11 are known per se and are therefore not described further. essential to the invention is that the rods 6 have non-flying ends, which are only stressed on bending, but that the Forces that could give rise to a bend in shape are derived from tensile forces on the webs 3.

Um die Strecke vom natürlichen Untergrund zur Fahrbahnplatte 10 zu überwinden, ist hier eine Rampe 13 vorgesehen, welche an der Fahrbahnplatte 10 im Bereich des Trägers 11 gelenkig befestigt ist.The route from the natural subsoil to the carriageway slab To overcome 10, a ramp 13 is provided here, which articulated on the carriageway slab 10 in the area of the beam 11 is attached.

Beim Ausführungsbeispiel gemäss Fig. 1 bringen die Auflagestellen im Wesentlichen nur die vertikal verlaufenden Reaktionskräfte auf. Die horizontal verlaufenden Druckkräfte auf der Oberseite des Brückenelementes und die Horizontalkomponenten der in den Stegen 3 verlaufenden Zugkräfte müssen jederzeit untereinander im Gleichgewicht stehen. Daher ist vorgesehen, die Druckstäbe entweder auf deren ganzer Länge oder zumindest in kurzen Abständen mit der Hülle 1 - vorzugsweise in den Laschen 7 - kraftschlüssig zu verbinden. Diese Verbindungen können durch mechanische Mittel wie Klemmvorrichtungen, aber auch durch Kleben vorgenommen werden.1 bring the support points essentially only the vertical reaction forces on. The horizontal compressive forces the top of the bridge element and the horizontal components of the tensile forces running in the webs 3 must at all times to be in balance with each other. It is therefore envisaged the pressure rods either over their entire length or at least at short intervals with the envelope 1 - preferably in the tabs 7 - to connect non-positively. These connections can by mechanical means such as clamping devices, but can also be done by gluing.

Beim Ausführungsbeispiel gemäss Fig. 5 werden die vertikalen Reaktionskräfte von den Trägern 11 aufgebracht, welche unmittelbar an die Druckstäbe 6 angeschlossen sind, In diesem Ausführungs- und Anwendungsbeispiel ist es lediglich notwendig, die Druckstäbe 6 an ihren Enden mit der Hülle 1 kraftschlüssig zu verbinden.5, the vertical Reactive forces applied by the carriers 11, which immediately are connected to the pressure rods 6, in this embodiment and application example it is only necessary the pressure rods 6 at their ends with the cover 1 non-positively connect to.

Erfindungsgemäss lässt sich das Brückenelement überall dort einsetzen, wo Lasten von einem flächenhaften Element getragen werden sollen. Dies ist beispielsweise bei einem Dach der Fall. In Fig. 5 ist eine solche Verwendung dargestellt. Ein schematisch dargestelltes Gebäude, dessen Statik beispielsweise durch mehrere Stahlträger 15 gebildet ist, trägt mindestens zwei Brückenelemente gemäss Fig. 1 als Dachelemente 16. Diese sind mittels Knotenelementen 14 am einen Ende mit den Stahlträgern 15, am andern mit einem sog. Gerberträger 17 verbunden. Die Knotenelemente 14 treten an die Stellen der Träger 11 gemäss Fig. 4. Auch die Verbindungen der Knotenelemente 14 mit den Druckstäben 6 sind an sich bekannt und dem Bauingenieur geläufig.According to the invention, the bridge element can be placed anywhere there use where loads are carried by a flat element should be. This is the case with a roof, for example Case. Such use is shown in FIG. On schematically represented building, its statics for example is formed by several steel beams 15 carries at least 1 as roof elements 16. These are connected by means of node elements 14 at one end Steel beams 15, the other with a so-called tanner beam 17 connected. The node elements 14 take the place of Carrier 11 according to FIG. 4. Also the connections of the node elements 14 with the pressure rods 6 are known per se and Common civil engineer.

Der Gerberträger 17 ist über die Verbindungsstellen mit den Knotenelementen auf die Dachelemente 16 hinaus verlängert, womit Drehmomente im Gerberträger 17 als senkrecht darauf wirkende Kräfte auf die Druckstäbe 6 übertragen werden können, wo sie wie normale Lasten abgeleitet werden. Faktisch bildet dieses Dach einen eigentlichen Dreigelenksbogen mit jeweils einem blockierten Gelenk auf der Seite mit der grösseren Last. Die Stahlträger 15 sind gegeneinander mit Stahlkabeln 18 abgespannt. Selbstverständlich sind andere Dachkonstruktionen mit solchen Dachelementen 16 möglich, wo damit weniger anspruchsvolle statische Aufgaben gelöst werden sollen. Da die Druckkräfte in den Druckstäben 6 hier über die Knotenelemente 14 nach aussen abgeleitet werden, ist es wiederum nur an den Enden der Druckstäbe 6 erforderlich, diese mit der Hülle kraftschlüssig zu verbinden. Zwischen den Enden können die Druckstäbe 6 in den Laschen 7 längs beweglich sein.The tanner carrier 17 is connected to the Node elements extended to the roof elements 16, with which torques in the Gerberträger 17 as perpendicular to it acting forces can be transmitted to the pressure rods 6, where they are derived like normal loads. real this roof forms an actual three-joint arch one blocked joint on the side with the larger one Load. The steel beams 15 are against each other with steel cables 18 guyed. Other roof structures are a matter of course possible with such roof elements 16 where so less demanding static tasks are to be solved. Since the pressure forces in the pressure rods 6 here on the Node elements 14 are derived outwards, it is again only required at the ends of the pressure rods 6, these to connect with the cover in a force-fitting manner. Between the ends can the pressure rods 6 in the tabs 7 longitudinally movable his.

Eine weitere Verwendung liegt im Einsatz des erfindungsgemässen Brückenelement als Ponton wie anhand von Fig. 6 gezeigt.Another use lies in the use of the inventive Bridge element as a pontoon as shown in FIG. 6.

Claims (8)

  1. A pneumatic structural or bridge element with a sheath (1) which can be supplied with compressed air via a value (2) and is made of a textile fabric of low extensibility and an airtight covering made of a flexible plastic, with elements for absorbing compressive forces and those for absorbing tensile forces, characterized in that
    a plurality of compression bars (6) are arranged parallel to one another at the upper side of the bridge element and are guided in shackles (7) connected to the sheath (1),
    a number of webs (3) corresponding to the number of compression bars (6) and made of a textile fabric of low extensibility are present and connect the upper side and the underside of the sheath (1),
    the textile webs (3) are arranged in planes running parallel to one another,
    each of these said planes also respectively contains one of the compression bars (6),
    the webs (3) are connected over their entire length to the inner side of the sheath (1),
    at least one first fabric layer (4) is present for each web (3) and its thread profile is turned through substantially 45° with respect to the longitudinal direction of the bridge element.
  2. The pneumatic structural or bridge element as claimed in patent claim 1, characterized in that, in addition to the fabric layers (4) turned through 45°, there are second fabric layers (5) whose thread profile is arranged parallel and perpendicular to the longitudinal direction of the bridge element.
  3. The pneumatic structural or bridge element as claimed in patent claim 1 or 2, characterized in that the compression bars (6) are connected nonpositively to the sheath (1) substantially over their entire length.
  4. The use of the pneumatic structural or bridge element as claimed in patent claim 3 as a bridge element, in which the sheath (1) is strengthened with a protective covering (9) at least on part of its underside and the bridge element is laid onto the ground by way of its underside.
  5. The use of the pneumatic structural or bridge element as claimed in patent claim 3 as a pontoon (19), in which the sheath (1) is provided with mooring means (20) for securing mooring ropes (21).
  6. The pneumatic structural or bridge element as claimed in patent claim 1 or 2, characterized in that the compression bars (6) are connected nonpositively to the sheath (1) at their two ends and are guided in the shackles (7) over the remainder of their length, and in that means are mounted at the ends of the compression bars (6) in order to dissipate the bearing forces.
  7. The use of the pneumatic structural or bridge element as claimed in patent claim 6 as a roof element (16), in which the means for displacing the bearing forces are node elements (14), by means of which the roof elements (16) are connected to their supporting structure.
  8. The use of the pneumatic structural or bridge element as claimed in patent claim 6 as a bridge element, in which the means for dissipating the bearing forces are beams (11) which are arranged transversely with respect to the compression bars (6) and dissipate the bearing forces to the ground via supports (12).
EP02708111A 2001-07-20 2002-03-27 Pneumatic construction or bridging element Expired - Lifetime EP1409791B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH13472001 2001-07-20
CH134701 2001-07-20
PCT/CH2002/000178 WO2003016634A1 (en) 2001-07-20 2002-03-27 Pneumatic construction or bridging element

Publications (2)

Publication Number Publication Date
EP1409791A1 EP1409791A1 (en) 2004-04-21
EP1409791B1 true EP1409791B1 (en) 2004-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02708111A Expired - Lifetime EP1409791B1 (en) 2001-07-20 2002-03-27 Pneumatic construction or bridging element

Country Status (7)

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US (1) US6874192B2 (en)
EP (1) EP1409791B1 (en)
AT (1) ATE284999T1 (en)
CA (1) CA2454241C (en)
DE (1) DE50201807D1 (en)
ES (1) ES2235010T3 (en)
WO (1) WO2003016634A1 (en)

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Publication number Priority date Publication date Assignee Title
CH704634B1 (en) * 2003-03-21 2012-09-28 Prospective Concepts Ag A pneumatic structural component.
DE502004006268D1 (en) * 2003-07-18 2008-04-03 Prospective Concepts Ag PNEUMATIC CARRIER
US8820000B2 (en) 2003-07-18 2014-09-02 Prospective Concepts Ag Pneumatic support
GB0420174D0 (en) * 2004-09-10 2004-10-13 Survitec Group Ltd Fascines
EP2181035B1 (en) * 2007-08-29 2016-11-23 Liferaft Systems Australia Pty Limited Triangular inflatable evacuation slide
GB0906978D0 (en) * 2009-04-22 2009-06-03 Ove Arup & Partners Internat L Deployable bridge element
EP2829690A1 (en) * 2013-07-23 2015-01-28 Alstom Technology Ltd Maintenance assembly adaptable within gas turbine engine
CH712565A1 (en) * 2016-06-08 2017-12-15 Pibridge Ltd Pneumatic carrier.
CH713818A1 (en) * 2017-05-16 2018-11-30 Pibridge Ltd Pneumatic carrier.
CN107841937B (en) * 2017-11-10 2023-12-19 中国人民解放军国防科技大学 Light Zhang Xianqi bearing bridge
AR121550A1 (en) * 2021-03-11 2022-06-15 Guijarro Jimenez Antonio Gustavo ULTRA-RESISTANT PNEUMATIC CONSTRUCTION ARRANGEMENT FOR LARGE WORKS

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US2527995A (en) * 1941-05-28 1950-10-31 Hamilton S Lilyflex Surfaces L Device for supporting moving vehicles on water
US2480144A (en) * 1943-08-12 1949-08-30 John N Laycock Pontoon assembly
US2987024A (en) * 1959-05-11 1961-06-06 Paul J Rush Mobile segmented cylindrical pontoon structure
GB1176941A (en) * 1966-05-06 1970-01-07 Secr Defence Improvements in or relating to Bridge Structures
FR2229814A1 (en) * 1973-05-16 1974-12-13 Superflexit
DE3206222A1 (en) * 1982-02-20 1983-09-01 IBEK Ingenieurbüro Echtler Kaiserslautern GmbH, 6750 Kaiserslautern PONTON FOR SWIMMING BRIDGES AND DRIVING
DE3540607C1 (en) * 1985-11-15 1987-04-02 Gutehoffnungshuette Man Device for folding a pontoon unit
US4712335A (en) 1986-12-17 1987-12-15 Barkdull Jr Howard L Method of span construction
AT394219B (en) * 1990-08-23 1992-02-25 Stranzinger Margarete FLOATING ELEMENT
US5107785A (en) * 1990-12-07 1992-04-28 Baxter Hal T Floating dock and breakwater
DE4227094C2 (en) * 1992-08-17 2001-02-08 Man Technologie Gmbh Pneumatic floor support for layable bridges
US5421128A (en) 1994-01-14 1995-06-06 Sharpless; Garrett C. Curved, inflated, tubular beam
US6381792B1 (en) * 1999-11-18 2002-05-07 Sandia Corporation Modular foam floating bridge
US6543730B2 (en) 2000-03-27 2003-04-08 Mauro Pedretti Pneumatic structural element

Also Published As

Publication number Publication date
CA2454241C (en) 2009-01-27
ATE284999T1 (en) 2005-01-15
CA2454241A1 (en) 2003-02-27
US20040237225A1 (en) 2004-12-02
EP1409791A1 (en) 2004-04-21
ES2235010T3 (en) 2005-07-01
US6874192B2 (en) 2005-04-05
DE50201807D1 (en) 2005-01-20
WO2003016634A1 (en) 2003-02-27

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