EP1452644B1 - Dismountable bridge - Google Patents

Dismountable bridge Download PDF

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Publication number
EP1452644B1
EP1452644B1 EP03027668A EP03027668A EP1452644B1 EP 1452644 B1 EP1452644 B1 EP 1452644B1 EP 03027668 A EP03027668 A EP 03027668A EP 03027668 A EP03027668 A EP 03027668A EP 1452644 B1 EP1452644 B1 EP 1452644B1
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EP
European Patent Office
Prior art keywords
bridge
arches
modules
end sections
carriers
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EP03027668A
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German (de)
French (fr)
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EP1452644A2 (en
EP1452644A3 (en
Inventor
Reinhold Fuessinger
Werner Duerr
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Airbus Defence and Space GmbH
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EADS Deutschland GmbH
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    • 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
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges

Definitions

  • the invention relates to a collapsible, i. Transportable bridge for mobile use according to the preamble of claim 1.
  • Transportable bridges when used, should conform to both the required span and load in order to avoid unnecessarily transporting material over long distances, i. transportable bridges should adapt to the obstacle and the load by their construction. This is particularly important if the bridges are to arrive by air freight at their place of use.
  • the two track carriers are braced by a sprinkler with one or more posts, which also includes the possibility of a bias.
  • longitudinally adjustable truss rods allow the adjustment of the track carrier height to the intended load, so that approximately always the same bar forces occur.
  • the support structure of the bridge becomes a mechanism which must be actively adjusted or regulated.
  • both track carriers and bends are subdivided into several modules.
  • the track carrier modules are designed to be identical to one another, while the sheet modules, depending on their position along the longitudinal direction of the bridge and the local gradient existing there relative to the horizontal, have different lengths.
  • the span is reduced by removing two bridge modules symmetrically to the center of the bridge, each consisting of the tracking carrier module, the bow module and the suspension rod.
  • the associated bow module retains its original pitch in each bridge module, only the length of the associated hanging rod of this and other bridge modules needs to be adjusted.
  • the present invention has for its object to provide a modular mobile bridge, which is characterized by great variability while avoiding the disadvantages of the prior art mentioned and can be flexibly adapted to obstacle and load.
  • the carrying capacity of the bridge girders is enhanced by two arches spanning the bridge, on which the bridge girders, e.g. over tension rods, are attached, raised.
  • tension rods any prestressable elements, in particular flexible straps, bands (for example made of textile materials) can be used.
  • the two arches are adapted in their modular distribution of the distribution of the bridge girder. Both the individual modules of the arches are identical to each other and in particular have the same length. Likewise, the individual modules of the track carrier are identical to each other and have the same length.
  • Arches and track carriers are provided at their ends with respective end pieces, wherein the end pieces of the arches are torque-rigidly connected to the end pieces of the respective track carrier, and the end pieces are formed such that they are capable of the length differences (measured in bridge span) between the track carrier and To equalize bends at different bridge lengths.
  • the arch structure also adapts to the bridge length. Since the height of the arc is approximately proportional to the span, the load on the individual components does not change very much over the span of the bridge.
  • Typical spans of the bridge according to the invention are in the range up to about 30m.
  • Fig. 1 shows a bridge according to the invention in side view. It comprises a bridge girder comprising as essential components two track carriers S and the carriageway F (FIGS. 2, 3).
  • the track carriers S have a modular structure and, in the embodiment shown in FIG. 1, comprise 5 modules SM.
  • the reinforcement of the bridge girders S is achieved by two bridges B spanning the bridge, which are torque-rigidly connected at their ends with the track carriers S and where the structure of the track carrier S is attached by means of tension rods Z.
  • the sheets B are modularly constructed of several modules BM.
  • the modules SM of the track carrier S are identical to each other.
  • the modules BM of the sheets B are identical to each other.
  • Track carriers S and bends B are each provided with end pieces (track carrier head SK, overvoltage head BK) at their ends. About these end pieces SK, BK sheets B and track carrier S at the bases of the sheets B are connected to each other torque-rigid.
  • the tie rods Z are slightly tilted out of the vertical position. This is an immediate consequence of the design principle according to the invention of exclusively using mutually identical sheet modules BM and mutually identical track carrier modules SM.
  • Sheet B and track carrier S are adapted to each other in terms of their modular construction, so that an arc module BM and a track carrier module SM together form a bridge module.
  • the number of modules SM, BM is the same for sheet B and track carrier S.
  • the length of the bow modules BM is matched to the length of the track carrier modules SM, so that the bridge can be built in different lengths (ie with different numbers of bridge modules).
  • the dependent on the number of bridge modules length difference (lengths measured in the bridge longitudinal direction) between the sheet B and track carrier S is compensated by the formation of the end pieces SK, BK.
  • adjustable clamping elements are provided on the track carrier head SK, with which different clamping positions within a vertical plane are made possible.
  • the overvoltage heads BK are attached to the track carrier heads SK at different positions, depending on the number of bridge modules.
  • the positions in this embodiment differ both in their horizontal coordinates (in the direction of the bridge span) and in their vertical coordinates.
  • track carrier S and bows B are independent of the overvoltage of the bridge girder according to the invention.
  • known constructions can be used. Both solid wall beams, box girders and truss girders for track girders S and bends B are possible.
  • FIG. 2 shows an embodiment in which track carriers S and bows B are designed as triangular carriers. They are each connected to each other via a tie rod Z.
  • track carriers S and bows B are designed as box girders with a rectangular cross-section and connected in each case via two tie rods Z.
  • FIG. 6 shows a module BM of the overvoltage which is designed in truss construction with a triangular cross-section.
  • the sheets B can be stabilized by one or more pairs of posts P connected to the over-tension B (position 1).
  • a bracing by means of rope A to the outwardly extended roadway structure F is present.

Abstract

The bridge structure has 2 longitudinal supports (S), each divided into a number of identical modules (SM) and spanned by a suspension arc (B), similarly divided into corresponding identical modules (BM), with end sections (SK,BK) at the ends of the longitudinal supports and the suspension arcs allowing compensation of the length differences between them for different bridge spans.

Description

Die Erfindung betrifft eine zerlegbare, d.h. transportable Brücke für den mobilen Einsatz nach dem Oberbegriff des Patentanspruch 1.The invention relates to a collapsible, i. Transportable bridge for mobile use according to the preamble of claim 1.

Transportable Brücken sollten bei ihrem Einsatz sowohl der geforderten Spannweite als auch der erfoderlichen Belastung entsprechen, um nicht unnötig viel Material über weite Entfernungen transportieren zu müssen, d.h. transportable Brücken sollten sich durch ihre Bauweise dem Hindernis und der Belastung anpassen. Dies ist besonders von Bedeutung, wenn die Brücken per Luftfracht an ihren Einsatzort gelangen sollen.Transportable bridges, when used, should conform to both the required span and load in order to avoid unnecessarily transporting material over long distances, i. transportable bridges should adapt to the obstacle and the load by their construction. This is particularly important if the bridges are to arrive by air freight at their place of use.

Für die Anpassung von mobilen Brücken an die geforderte Belastung sind mehrere modulare Brückenkonzepte bekannt:For adapting mobile bridges to the required load, several modular bridge concepts are known:

Doppelwandige BauweiseDouble-walled construction

Hierbei werden auf beiden Seiten einer Brücke zwei Spurträger parallel nebeneinander angeordnet. Diese Lösung ist nicht massen-optimal, da sich die Trägheitsmomente der beiden parallenen Träger nur addieren, ebenso ihre Massen.Here, two track carriers are arranged parallel next to each other on both sides of a bridge. This solution is not mass optimal, since the moments of inertia of the two parallel carriers only add up, as do their masses.

Doppelstöckige BauweiseDouble storey construction

Hierbei werden auf beiden Seiten der Brücke zwei Spurträger übereinander angeordnet. Das Trägheitsmoment steigt zwar mit der verdoppelten Spurträgerhöhe, jedoch kommen der Untergurt des obenliegenden Spurträgers sowie der Obergurt des untenliegenden Spurträgers nahe der neutralen Achse zu liegen, tragen nicht mehr zum Gesamttragvermögen bei und stellen somit eine "tote Masse" dar.Here, two track carriers are arranged one above the other on both sides of the bridge. Although the moment of inertia increases with the doubled track carrier height, however, the lower belt of the overhead track carrier and the upper belt of the lower track carrier come to rest close to the neutral axis, no longer contribute to the overall load capacity and thus represent a "dead mass".

Unterspannungundervoltage

Hierbei werden die beiden Spurträger durch ein Sprengwerk mit einem oder mehreren Pfosten unterspannt, was auch die Möglichkeit einer Vorspannung beinhaltet. Nachteile: Der für die Unterspannung notwendige Bauraum unterhalb des Brückenträgers ist nicht immer vorhanden. Außerdem muss die eingestellte Vorspannung über die gesamte Dauer des Einsatzes sichergestellt werden.In this case, the two track carriers are braced by a sprinkler with one or more posts, which also includes the possibility of a bias. Disadvantages: The space required for undervoltage below the bridge girder is not always available. In addition, the set preload must be ensured over the entire duration of the insert.

Höhenverstellbare Struktur (DE 38 14 502 A1) Height adjustable structure (DE 38 14 502 A1)

Hierbei erlauben längsverstellbare Fachwerkstäbe die Anpassung der Spurträgerhöhe an die vorgesehene Belastung, so dass in etwa immer gleiche Stabkräfte auftreten. Nachteil: Die Tragstruktur der Brücke wird zu einem Mechanismus, welcher aktiv verstellt oder geregelt werden muss.Here, longitudinally adjustable truss rods allow the adjustment of the track carrier height to the intended load, so that approximately always the same bar forces occur. Disadvantage: The support structure of the bridge becomes a mechanism which must be actively adjusted or regulated.

In der AT 145 895 ist eine gattungsgemäße Brücke beschrieben, bei der die Spurträger jeweils durch einen Bogen überspannt und an diesem angehängt sind. In Brückenlängsrichtung sind sowohl Spurträger als auch Bögen in mehrere Module unterteilt. Die Spurträgermodule sind untereinander identisch ausgebildet, während die Bogenmodule anhängig von ihrer Lage entlang der Brückenlängsrichtung und der dort bestehenden lokalen Steigung gegenüber der Horizontalen unterschiedliche Längen aufweisen. Eine Verringerung der Spannweite erfolgt bei dieser Brücke dadurch, dass symmetrisch zur Brückenmitte zwei Brückenmodule, bestehend jeweils aus Spurträgermodul, Bogenmodul und Hängestange, entfernt werden. In einer derart verkürzten Brücke behält in jedem Brückenmodul das zugehörige Bogenmodul seine ursprüngliche Steigung bei, es muss lediglich die Länge der zugehörigen Hängestange dieser und weiterer Brückenmodule angepasst werden. Aufgrund dieses Konstruktionsprinzips stimmen die Längen, gemessen in Richtung der Brückenspannweite, von Bogen und Spurträger für jede mögliche Brückenlänge immer überein. Bei dieser Brücke muss jedoch eine größere Zahl von Bogenmodulen unterschiedlicher Länge vorhanden sein. Dies verkompliziert Transport und Bau und führt zu relativ langen Bauzeiten der Brücke. Geht eines der Brückenmodule verloren, kann es nicht ohne weiteres durch ein anderes ersetzt werden. Diese Eigenschaften sind für luftverlastbare, militärische Brücken, bei denen es vor allem auf Schnelligkeit bei Transport und Aufbau sowie auf Robustheit ankommt, nicht tolerabel.In the AT 145 895 a generic bridge is described in which the track carrier each spanned by an arc and attached to this. In the longitudinal direction of the bridge, both track carriers and bends are subdivided into several modules. The track carrier modules are designed to be identical to one another, while the sheet modules, depending on their position along the longitudinal direction of the bridge and the local gradient existing there relative to the horizontal, have different lengths. In this bridge, the span is reduced by removing two bridge modules symmetrically to the center of the bridge, each consisting of the tracking carrier module, the bow module and the suspension rod. In such a shortened bridge, the associated bow module retains its original pitch in each bridge module, only the length of the associated hanging rod of this and other bridge modules needs to be adjusted. Due to this design principle, the lengths, measured in the direction of the bridge span, of the arc and track carrier always coincide for each possible bridge length. However, this bridge requires a larger number of bow modules of different lengths. This complicates transport and construction and leads to relatively long construction times of the bridge. If one of the bridge modules is lost, it can not easily be replaced by another one. These properties are not tolerable for airworthy military bridges, where speed and ease of transport and construction are key factors, as well as robustness.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine modular aufgebaute mobile Brücke zu schaffen, die unter Vermeidung der genannten Nachteile des Standes der Technik sich durch große Variabilität auszeichnet und flexibel an Hindernis und Belastung angepasst werden kann.The present invention has for its object to provide a modular mobile bridge, which is characterized by great variability while avoiding the disadvantages of the prior art mentioned and can be flexibly adapted to obstacle and load.

Diese Aufgabe wird durch den Gegenstand des Patentanspruch 1 gelöst. Vorteilhafte Ausführungen sind Gegenstand weiterer Ansprüche.This object is solved by the subject matter of patent claim 1. Advantageous embodiments are the subject of further claims.

Gemäß der Erfindung wird die Tragfähigkeit der Brückenspurträger durch zwei die Brücke überspannende Bögen, an denen die Brückenspurträger, z.B. über Zugstäbe, angehängt sind, erhöht. Anstatt Zugstäben können beliebige vorspannbare Elemente, insbesondere flexible Gurte, Bänder (z.B. aus textilen Materialien) eingesetzt werden.According to the invention, the carrying capacity of the bridge girders is enhanced by two arches spanning the bridge, on which the bridge girders, e.g. over tension rods, are attached, raised. Instead of tension rods, any prestressable elements, in particular flexible straps, bands (for example made of textile materials) can be used.

Die beiden Bögen sind in ihrer modularen Aufteilung der Aufteilung der Brückenspurträger angepasst. Dabei sind sowohl die einzelnen Module der Bögen untereinander baugleich und weisen insbesondere die gleiche Länge auf. Ebenso sind die einzelnen Module der Spurträger untereinander baugleich und weisen die gleiche Länge auf.The two arches are adapted in their modular distribution of the distribution of the bridge girder. Both the individual modules of the arches are identical to each other and in particular have the same length. Likewise, the individual modules of the track carrier are identical to each other and have the same length.

Bögen und Spurträger sind an ihren Enden jeweils mit Endstücken versehen, wobei die Endstücke der Bögen mit den Endstücken der jeweiligen Spurträger momentensteif verbunden sind, und die Endstücke derart ausgebildet sind, dass sie im Stande sind, die Längendifferenzen (gemessen in Brückenspannweite) zwischen Spurträger und Bögen bei verschiedenen Brückenlängen auszugleichen.Arches and track carriers are provided at their ends with respective end pieces, wherein the end pieces of the arches are torque-rigidly connected to the end pieces of the respective track carrier, and the end pieces are formed such that they are capable of the length differences (measured in bridge span) between the track carrier and To equalize bends at different bridge lengths.

Durch den modularen Aufbau passt sich die Bogenstruktur auch der Brückenlänge an. Da sich die Höhe des Bogens in etwa proportional zur Spannweite verhält, verändert sich die Belastung der einzelnen Komponenten über der Spannweite der Brücke nicht sehr stark.Due to the modular structure, the arch structure also adapts to the bridge length. Since the height of the arc is approximately proportional to the span, the load on the individual components does not change very much over the span of the bridge.

Typische Spannweiten der erfindungsgemäßen Brücke liegen im Bereich bis ca. 30m.Typical spans of the bridge according to the invention are in the range up to about 30m.

Vorteile der ErfindungAdvantages of the invention

  • Die zerlegte Brücke kann volumen-optimal und damit lufttransportfähig verstaut werden.The disassembled bridge can be stowed volume-optimal and thus transportable air.
  • Bögen und Spurträger sind jeweils aus identischen Modulen aufgebaut, was die Variabilität der Brücke im Einsatz wesentlich erhöht. Beschädigte oder verlorene Bauteile können durch andere baugleiche ersetzt werden.Arches and track carriers are each made up of identical modules, which significantly increases the variability of the bridge in use. Damaged or lost components can be replaced by other identical ones.
  • Brückenträger geringerer Tragfähigkeit können mittels der Überspannung verstärkt werden.Bridge beams of lower load capacity can be reinforced by means of the overvoltage.
  • Die Wirksamkeit der Verstärkung ist in etwa proportional der Spannweite der Brücke.The effectiveness of the gain is approximately proportional to the span of the bridge.
  • Die Verstärkung baut nach oben, wo in der Regel immer Platz ist. Eine Kollision mit dem Hindernis kann so in jedem Fall verhindert werden.The reinforcement builds up where there is always room. A collision with the obstacle can thus be prevented in any case.
  • Die Überspannung wird an der bereits verlegten Brücke montiert und kann auch bei verlegter Brücke demontiert werden ohne die ganze Brücke zurückzubauen, d.h.
    • das Gewicht der Überspannung der Brücke muss nicht z.B. im freien Vorbau verlegt werden,
    • defekte Teile können ausgetauscht werden, ohne die Brücke zurückzubauen.
    The overvoltage is mounted on the bridge that has already been laid and can be dismantled even with the bridge removed, without dismantling the entire bridge, ie
    • the weight of the overvoltage of the bridge does not have to be laid in the free stem, for example
    • Defective parts can be replaced without dismantling the bridge.

Die Erfindung wird anhand konkreter Ausführungsbeispiele unter Bezugnahme auf Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine erfindungsgemäße Brücke aus 5 Brückenmodulen;
Fig. 2,3
zwei verschiedene Ausführungen der erfindungsgemäßen Brücke in einem Schnitt quer zur Brückenlängsrichtung;
Fig. 4
eine erfindungsgemäße Brücke aus 4 Brückenmodulen;
Fig. 5
eine erfindungsgemäße Brücke aus 3 Brückenmodulen;
Fig. 6
ein Modul des Bogens einer erfindungsgemäßen Brücke in drei verschiedenen Ansichten.
The invention will be explained in more detail with reference to concrete embodiments with reference to drawings. Show it:
Fig. 1
a bridge according to the invention of 5 bridge modules;
Fig. 2.3
two different embodiments of the bridge according to the invention in a section transverse to the bridge longitudinal direction;
Fig. 4
a bridge according to the invention of 4 bridge modules;
Fig. 5
a bridge according to the invention of 3 bridge modules;
Fig. 6
a module of the bow of a bridge according to the invention in three different views.

Fig. 1 zeigt eine erfindungsgemäße Brücke in Seitenansicht. Sie umfasst einen Brückenträger, der als wesentliche Komponenten zwei Spurträger S sowie die Fahrbahn F (Fig. 2,3) umfasst. Die Spurträger S sind modular aufgebaut und umfassen in der in Fig. 1 gezeigten Ausführung 5 Module SM. Die Verstärkung der Brückenträger S wird durch zwei die Brücke überspannende Bögen B erreicht, die an ihren Enden momentensteif mit den Spurträgern S verbunden sind und an denen mittels Zugstäben Z die Struktur der Spurträger S angehängt ist.Fig. 1 shows a bridge according to the invention in side view. It comprises a bridge girder comprising as essential components two track carriers S and the carriageway F (FIGS. 2, 3). The track carriers S have a modular structure and, in the embodiment shown in FIG. 1, comprise 5 modules SM. The reinforcement of the bridge girders S is achieved by two bridges B spanning the bridge, which are torque-rigidly connected at their ends with the track carriers S and where the structure of the track carrier S is attached by means of tension rods Z.

Wie die Spurträger S des Brückenträgers, so sind auch die Bögen B modular aus mehreren Modulen BM aufgebaut. Die Module SM der Spurträger S sind untereinander identisch ausgebildet. Ebenso sind die Module BM der Bögen B untereinander identisch ausgebildet. Spurträgern S und Bögen B sind an ihren Enden jeweils mit Endstücken (Spurträgerkopf SK, Überspannungskopf BK) versehen. Über diese Endstücke SK,BK sind Bögen B und Spurträger S an den Fußpunkten der Bögen B miteinander momentensteif verbunden.Like the track carrier S of the bridge girder, so the sheets B are modularly constructed of several modules BM. The modules SM of the track carrier S are identical to each other. Likewise, the modules BM of the sheets B are identical to each other. Track carriers S and bends B are each provided with end pieces (track carrier head SK, overvoltage head BK) at their ends. About these end pieces SK, BK sheets B and track carrier S at the bases of the sheets B are connected to each other torque-rigid.

Wie aus den Fig. 1, 4 und 5 gut zu erkennen ist, sind die Zugstäbe Z etwas aus der vertikalen Lage verkippt. Dies ist eine unmittelbare Folge des erfindungsgemäßen Konstruktionsprinzips, ausschließlich untereinander identische Bogenmodule BM und untereinander identische Spurträgermodule SM zu verwenden.As can be clearly seen from FIGS. 1, 4 and 5, the tie rods Z are slightly tilted out of the vertical position. This is an immediate consequence of the design principle according to the invention of exclusively using mutually identical sheet modules BM and mutually identical track carrier modules SM.

Bogen B und Spurträger S sind hinsichtlich ihres modularen Aufbaus aneinander angepasst, so dass ein Bogenmodul BM und ein Spurträgermodul SM zusammen ein Brückenmodul bilden. Die Zahl der Module SM,BM ist bei Bogen B und Spurträger S gleich. Die Länge der Bogenmodule BM ist auf die Länge der Spurträgermodule SM abgestimmt, derart dass die Brücke in verschiedenen Längen (d.h. mit unterschiedlicher Anzahl von Brückenmodulen) gebaut werden kann. Die von der Anzahl der Brückenmodule abhängige Längendifferenz (Längen gemessen in Brückenlängsrichtung) zwischen Bogen B und Spurträger S wird durch die Ausbildung der Endstücke SK,BK kompensiert. In der Ausführung nach Fig. 1 ist beispielhaft zu erkennen, dass am Spurträgerkopf SK verstellbare Einspannelemente vorhanden sind, mit der unterschiedliche Einspannpositionen innerhalb einer vertikalen Ebene ermöglicht werden. Wie die Ausführungen der Brücke nach Fig. 4 (4 Brückenmodule umfassend) und Fig. 5 (3 Brückenmodule umfassend) zeigt, sind die Überspannungsköpfe BK je nach Anzahl der Brückenmodule an unterschiedlichen Positionen an den Spurträgerköpfen SK befestigt. Die Positionen unterscheiden sich in dieser Ausführung sowohl in ihrer horizontalen Koordinate (in Richtung der Brückenspannweite) als auch in ihrer vertikaler Koordinate.Sheet B and track carrier S are adapted to each other in terms of their modular construction, so that an arc module BM and a track carrier module SM together form a bridge module. The number of modules SM, BM is the same for sheet B and track carrier S. The length of the bow modules BM is matched to the length of the track carrier modules SM, so that the bridge can be built in different lengths (ie with different numbers of bridge modules). The dependent on the number of bridge modules length difference (lengths measured in the bridge longitudinal direction) between the sheet B and track carrier S is compensated by the formation of the end pieces SK, BK. In the embodiment according to FIG. 1, it can be seen by way of example that adjustable clamping elements are provided on the track carrier head SK, with which different clamping positions within a vertical plane are made possible. As the embodiments of the bridge of FIG. 4 (4 bridge modules comprising) and Fig. 5 (comprising three bridge modules), the overvoltage heads BK are attached to the track carrier heads SK at different positions, depending on the number of bridge modules. The positions in this embodiment differ both in their horizontal coordinates (in the direction of the bridge span) and in their vertical coordinates.

Die konkrete Ausbildung von Spurträger S und Bögen B ist unabhängig von der erfindungsgemäßen Überspannung des Brückenträgers. Hier können die bekannten Konstruktionen eingesetzt werden. Es sind sowohl Vollwandträger, Kastenträger als auch Fachwerkträger für Spurträger S und Bögen B möglich.The concrete formation of track carrier S and bows B is independent of the overvoltage of the bridge girder according to the invention. Here the known constructions can be used. Both solid wall beams, box girders and truss girders for track girders S and bends B are possible.

Fig. 2 zeigt hierzu eine Ausführung, bei der Spurträger S und Bögen B als Dreiecksträger ausgebildet sind. Sie sind jeweils über einen Zugstab Z miteinander verbunden. Gemäß der Ausführung nach Fig. 3 sind Spurträger S und Bögen B als Kastenträger mit rechteckigem Querschnitt ausgebildet und jeweils über zwei Zugstäbe Z verbunden. Fig. 6 zeigt ein in Fachwerkbauweise mit dreieckigem Querschnitt ausgeführtes Modul BM der Überspannung.For this purpose, FIG. 2 shows an embodiment in which track carriers S and bows B are designed as triangular carriers. They are each connected to each other via a tie rod Z. According to the embodiment according to FIG. 3, track carriers S and bows B are designed as box girders with a rectangular cross-section and connected in each case via two tie rods Z. FIG. 6 shows a module BM of the overvoltage which is designed in truss construction with a triangular cross-section.

Wie in den Fig. 2 und 3 dargestellt, können die Bögen B durch ein oder mehrere Pfostenpaare P, die mit der Überspannung B verbunden sind (Position 1), stabilisiert werden. Um ein seitliches Ausknicken zu verhindern, ist zusätzlich eine Abspannung mittels Seil A zu der nach außen verlängerten Fahrbahnstruktur F vorhanden.As shown in Figs. 2 and 3, the sheets B can be stabilized by one or more pairs of posts P connected to the over-tension B (position 1). In order to prevent lateral buckling, in addition a bracing by means of rope A to the outwardly extended roadway structure F is present.

Claims (5)

  1. Dismountable bridge comprising two deck carriers (S) which, as viewed in the longitudinal direction of the bridge, are divided into a number of identical modules (SM), wherein
    - the two deck carriers (S) are each spanned by an arch (B) and suspended thereon,
    - the arches (B) are divided into a number of modules (BM) as viewed in the longitudinal direction of the bridge, the arches (B) being adapted in their modular division to the modular division of the deck carriers (S),
    - the arches (B) and deck carriers (S) are provided at their ends with end sections (SK, BK),
    characterized in that
    - the modules (BM) of the arches (B) are designed to be identical to one another,
    - the end sections (BK) of the arches (B) are connected rigidly in terms of moments to the end sections (SK) of the respective deck carriers (S), and the end sections (BK) of the arches (B) are fastened at different positions on the end sections (SK) of the respective deck carrier (S) dependent on the number of modules (BM) in order to compensate for the differences in length between the deck carriers (S) and arches (B) for different bridge lengths.
  2. Bridge according to Claim 1, characterized in that the arches (B) are stabilized by one or more pairs of posts (P) which are braced by cables (A) with respect to the outwardly extended roadway structure (F).
  3. Bridge according to one of the preceding claims, characterized in that the arches (B) are designed as plate girders or truss girders.
  4. Bridge according to one of the preceding claims, characterized in that the deck carriers (S) are suspended on the arches (B) by means of tie rods (Z), straps or other pretensionable elements.
  5. Bridge according to one of the preceding claims, characterized in that the end sections (SK) of the deck carriers (S) have a number of coupling points for the moment-rigid connection with the end sections (BK) of the arches (B), these coupling points differing in terms of their position in the bridge span direction.
EP03027668A 2003-02-25 2003-12-03 Dismountable bridge Expired - Lifetime EP1452644B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10307858A DE10307858B3 (en) 2003-02-25 2003-02-25 Transportable bridge structure has end sections compensating length differences between modular longitudinal supports and suspension arcs
DE10307858 2003-02-25

Publications (3)

Publication Number Publication Date
EP1452644A2 EP1452644A2 (en) 2004-09-01
EP1452644A3 EP1452644A3 (en) 2005-05-04
EP1452644B1 true EP1452644B1 (en) 2007-09-19

Family

ID=32309070

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Application Number Title Priority Date Filing Date
EP03027668A Expired - Lifetime EP1452644B1 (en) 2003-02-25 2003-12-03 Dismountable bridge

Country Status (5)

Country Link
US (1) US7017219B2 (en)
EP (1) EP1452644B1 (en)
AT (1) ATE373746T1 (en)
DE (2) DE10307858B3 (en)
ES (1) ES2290398T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015219228A1 (en) * 2015-10-06 2017-04-06 Bauhaus Universität Weimar Kit for a dismountable, walkable structure

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US2367291A (en) * 1941-09-22 1945-01-16 Letourneau Inc Portable bridge
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Also Published As

Publication number Publication date
EP1452644A2 (en) 2004-09-01
DE10307858B3 (en) 2004-06-09
EP1452644A3 (en) 2005-05-04
ATE373746T1 (en) 2007-10-15
US20040231074A1 (en) 2004-11-25
ES2290398T3 (en) 2008-02-16
DE50308213D1 (en) 2007-10-31
US7017219B2 (en) 2006-03-28

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