EP0435741A1 - Light transportable bridge element for surmounting gaps - Google Patents

Light transportable bridge element for surmounting gaps Download PDF

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Publication number
EP0435741A1
EP0435741A1 EP19900403658 EP90403658A EP0435741A1 EP 0435741 A1 EP0435741 A1 EP 0435741A1 EP 19900403658 EP19900403658 EP 19900403658 EP 90403658 A EP90403658 A EP 90403658A EP 0435741 A1 EP0435741 A1 EP 0435741A1
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Prior art keywords
sections
modules
section
work according
bridge element
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EP19900403658
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German (de)
French (fr)
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EP0435741B1 (en
Inventor
Jacques Sevenet
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Areva NP SAS
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Framatome SA
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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 present invention relates to a light transportable span intended in particular for crossing breaches by so-called heavy vehicles, for example by armored vehicles.
  • spans are generally either spans of the scissor type, or either simple spans in several abutable sections.
  • the scissor-type span comprises two or three inseparable elements which develop in rotation in a vertical plane around the common axis of two elements.
  • these spans can be placed either by means of an arrow or using a manipulator.
  • the sections are transported in a superimposed manner with respect to each other, then moved in translation by a manipulator, which, after locking the sections, is also used for depositing the span thus formed .
  • the assembly of the sections of the span is hitherto carried out by centering and connecting members formed for example by latches or still keys or else mechanical assemblies comprising a rack and ratchet device actuated by a pusher.
  • the centering and connecting members used are often complicated to implement, given the dimensions and the weight of the sections.
  • the present invention therefore aims to provide a new type of simple span for crossing gaps allowing to reconcile the qualities of robustness, solidity, mechanical resistance to bending and lightness.
  • the present invention therefore relates to a light transportable span for crossing breaches comprising at least one pair of parallel sections and interconnected to form a path of rolling, each section consisting of several identical, reversible and interchangeable modules, characterized in that it comprises several pairs of sections placed end to end, comprising at each of their ends means for hooking on the edges of the breccias and also forming means for connecting a section with the other placed opposite.
  • the span shown in FIG. 1 consists of at least one pair of sections 1, the sections of each pair being interconnected by crosspieces 2.
  • a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end to form at least one raceway allowing the passage of vehicles.
  • Section 1 is made up of several modules 10a, 10b, 10c ... juxtaposed and joined together by suitable means, not shown.
  • Each module 10a, 10b, 10c ... has a general parallelepiped shape whose upper face has a continuous curved profile to form the general slope of each section.
  • Each section 1 has at each of its ends hooking means.
  • each module 10a, 10b, 10c ... is provided at one of its ends for example 11a, 11b, 11c ... with a projecting part 12a, 12b, 12c ... and, at the opposite end, for example 13a, 13b, 13c ..., of a housing 14a, 14b, 14c ... of shape complementary to said projecting part.
  • the modules 10a, 10b, 10c ... are juxtaposed in opposite directions with respect to each other, then assembled by suitable means not shown, so as to form a succession of projecting parts and housings .
  • the sections 1 comprise at each end a succession of projecting parts and housings offset relative to those of the end of the other section placed opposite.
  • All modules 10a, 10b, 10c ... are therefore identical, reversible, and interchangeable with each other.
  • a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end.
  • the protruding parts 12a, 12b, 12c form hooking means on the banks of the breach.
  • projecting parts 12a, 12b, 12c provide the functions of stability, anchoring on the ground and perfect continuity of the curved profile of the span.
  • the bridges used up to now consist, in general, of three pairs of inseparable sections and this in order to produce a "bridge" whose general shape is taken up in the present application by a single pair of sections 1.
  • the protruding parts 12a, 12b, 12c ... and the housings 14a, 14b, 14c ... form interlocking members of several pairs of section 1 placed facing each other.
  • connecting means 12a, 12b, 12c ... and 14a, 14b, 14c ... make it possible to be able to use a number of pairs of sections 1 corresponding to dimensions of the breach to be crossed.
  • the modules 10a, 10b, 10c ... can be produced by molding in a light material of low density, high resistance and of low thickness such as a composite material.
  • a single type of mold is sufficient to produce all of the modules and to assemble said modules, for example by gluing, in opposite directions with respect to each other to form a section.
  • the number of juxtaposed modules is therefore easily modifiable depending on the width of the raceway that one wishes to obtain.
  • This arrangement therefore makes it possible to produce modular spans of great length and of high strength having a volume-to-weight ratio as low as possible.
  • the spans according to the invention also have qualities of robustness, mechanical solidity and resistance to bending and have a very particular aptitude for the speed of laying, but also a lightness facilitating their transport and their implementation.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Road Paving Structures (AREA)

Abstract

The subject of the present invention is a light transportable bridge element for surmounting gaps comprising at least one pair of parallel sections (1) connected to each other in order to form a driving track, each section (1) comprising several modules (10a, 10b, 10c, etc.) which are identical, reversible and interchangeable. The bridge element comprises several pairs of sections (1) placed end to end comprising at each of their ends means of attachment (12a, 12b, 12c, etc.) to the edges of the gap and forming means of linking one section with another placed facing it. <IMAGE>

Description

La présente invention a pour objet une travure transportable légère destinée notamment au franchissement de brèches par des engins dits lourds par exemple par des engins blindés.The present invention relates to a light transportable span intended in particular for crossing breaches by so-called heavy vehicles, for example by armored vehicles.

Le franchissement de brèches ou autres passages entre deux bords surélevés par des engins dits lourds réclame des travures présentant non seulement une aptitude toute particulière à la rapidité de pose, mais aussi une légèreté facilitant leur transport et leur mise en oeuvre.The crossing of breaches or other passages between two raised edges by so-called heavy equipment requires spans having not only a very particular aptitude for the speed of installation, but also a lightness facilitating their transport and their implementation.

Ces impératifs de légèreté et de maniabilité sont contradictoires avec les qualités de robustesse, de solidité mécanique et de résistance à la flexion, compte tenu du poids des engins pouvant utilisés ces travures.These imperatives of lightness and maneuverability are contradictory with the qualities of robustness, mechanical solidity and resistance to bending, taking into account the weight of the machines that can use these spans.

Ces travures sont généralement soit des travures du type en ciseaux, ou soit des travures simples en plusieurs tronçons aboutables.These spans are generally either spans of the scissor type, or either simple spans in several abutable sections.

Les travures de type en ciseaux comprennent deux ou trois éléments indissociables qui se développent en rotation dans un plan vertical autour de l'axe commun de deux éléments.The scissor-type span comprises two or three inseparable elements which develop in rotation in a vertical plane around the common axis of two elements.

Après déploiement, ces travures peuvent être déposées soit au moyen d'une flèche, soit à l'aide d'un manipulateur.After deployment, these spans can be placed either by means of an arrow or using a manipulator.

Ces travures de type en ciseaux ont pour principal inconvénient le fait que, lors du déploiement ou de la dépose, la travure s'élève à une hauteur telle qu'elle est facilement détectable par les moyens d'observations ennemis. D'autre part, le système d'articulation et de déploiement alourdit considérablement l'ensemble, ce qui oblige à limiter la portée, car les efforts sur le système de déploiement en porte à faux deviennent trop importants.The main disadvantage of these scissor-type structures is that, during deployment or removal, the structure rises to a height such that it is easily detectable by means of enemy observations. On the other hand, the articulation and deployment system considerably increases the overall weight, which makes it necessary to limit the range, because the efforts on the cantilever deployment system become too great.

Dans le cas d'une travure simple, les tronçons sont transportés d'une manière superposée les uns par rapport aux autres, puis déplacés en translation par un manipulateur, qui, après verrouillage des tronçons, sert également à la dépose à la travure ainsi formée.In the case of a single span, the sections are transported in a superimposed manner with respect to each other, then moved in translation by a manipulator, which, after locking the sections, is also used for depositing the span thus formed .

Jusqu'à présent, les travures simples sont généralement formées par des poutrelles métalliques soudées de grande section ou par des structures en treillis, si bien que le poids des travures est important ce qui ne facilite pas leur mise en place.Up to now, simple spans are generally formed by welded metal beams of large section or by lattice structures, so that the weight of spans is important which does not facilitate their installation.

Or, on sait que le temps de manipulation en chargement et en déchargement et les manoeuvres diverses de mise en place sont des facteurs prépondérants notamment dans le cadre d'opérations rapides.However, it is known that the handling time during loading and unloading and the various installation maneuvers are predominant factors, particularly in the context of rapid operations.

De plus, l'assemblage des tronçons de la travure est jusqu'à présent réalisé par des organes de centrage et de liaison formés par exemple par des verrous ou encore des clavettes ou encore des ensembles mécaniques comprenant un dispositif à crémaillère et à cliquets actionnés par un poussoir.In addition, the assembly of the sections of the span is hitherto carried out by centering and connecting members formed for example by latches or still keys or else mechanical assemblies comprising a rack and ratchet device actuated by a pusher.

Les organes de centrage et de liaison utilisés sont souvent compliqués à mettre en oeuvre compte tenu des dimensions et du poids des tronçons.The centering and connecting members used are often complicated to implement, given the dimensions and the weight of the sections.

La présente invention a donc pour but de proposer un nouveau type de travure simple pour le franchissement de brèches permettant de concilier les qualités de robustesse, de solidité, de résistance mécanique à la flexion et de légèreté.The present invention therefore aims to provide a new type of simple span for crossing gaps allowing to reconcile the qualities of robustness, solidity, mechanical resistance to bending and lightness.

La présente invention a donc pour objet une travure transportable légère pour le franchissement de brèches comprenant au moins une paire de tronçons parallèles et reliés entre eux pour former un chemin de roulement, chaque tronçon se composant de plusieurs modules identiques, et réversibles et interchangeables, caractérisée en ce qu'elle comprend plusieurs paires de tronçons placées bout à bout, comportant à chacune de leurs extrémités des moyens d'accrochage sur les rives de la brèches et formant également des moyens de liaison d'un tronçon avec l'autre placé en regard.The present invention therefore relates to a light transportable span for crossing breaches comprising at least one pair of parallel sections and interconnected to form a path of rolling, each section consisting of several identical, reversible and interchangeable modules, characterized in that it comprises several pairs of sections placed end to end, comprising at each of their ends means for hooking on the edges of the breccias and also forming means for connecting a section with the other placed opposite.

Selon d'autres caractéristiques de l'invention:

  • les moyens de liaison sont formés par des organes d'emboîtement de forme complémentaire,
  • les organes d'emboîtement sont formés à l'une extrémité du module, par une partie en saillie, et à l'extrémité opposée, par un logement de forme complémentaire à ladite partie en saillie,
  • les modules sont réalisés par moulage,
  • les modules sont réalisés en un matériau léger de faible densité, de haute résistance et de faible épaisseur,
  • le matériau léger de faible densité et de haute résistance est un matériau composite.
According to other characteristics of the invention:
  • the connection means are formed by interlocking members of complementary shape,
  • the interlocking members are formed at one end of the module, by a projecting part, and at the opposite end, by a housing of shape complementary to said projecting part,
  • the modules are produced by molding,
  • the modules are made of a light material of low density, high strength and low thickness,
  • the light material of low density and high resistance is a composite material.

L'invention sera mieux comprise à l'aide de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels:

  • la Fig. 1 est une vue de dessus d'une paire de tronçons parallèles d'une travure selon l'invention,
  • la Fig. 2 est une vue en perspective de deux modules d'un tronçon d'une travure selon l'invention.
The invention will be better understood with the aid of the description which follows, given solely by way of example and made with reference to the appended drawings in which:
  • Fig. 1 is a top view of a pair of parallel sections of a span according to the invention,
  • Fig. 2 is a perspective view of two modules of a section of a span according to the invention.

La travure représentée à la Fig. 1 se compose d'au moins une paire de tronçons 1, les tronçons de chaque paire étant reliés entre eux par des traverses 2.The span shown in FIG. 1 consists of at least one pair of sections 1, the sections of each pair being interconnected by crosspieces 2.

Pour le franchissement de brèches, une seule paire de tronçons 1 peut être utilisée ou plusieurs paires de tronçons 1 peuvent être placées bout à bout pour former au moins un chemin de roulement permettant le passage de véhicules.For crossing gaps, a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end to form at least one raceway allowing the passage of vehicles.

Le tronçon 1 se compose de plusieurs modules 10a, 10b, 10c... juxtaposés et solidarisés entre eux par des moyens appropriés non représentés.Section 1 is made up of several modules 10a, 10b, 10c ... juxtaposed and joined together by suitable means, not shown.

Chaque module 10a, 10b, 10c... affecte une forme générale parallélépipédique dont la face supérieure présente un profil courbe continu pour former la pente générale de chaque tronçon.Each module 10a, 10b, 10c ... has a general parallelepiped shape whose upper face has a continuous curved profile to form the general slope of each section.

Chaque tronçon 1 comporte à chacune de ses extrémités des moyens d'accrochage.Each section 1 has at each of its ends hooking means.

A cet effet, chaque module 10a, 10b, 10c... est pourvu à l'une de ses extrémités par exemple 11a, 11b, 11c... d'une partie en saillie 12a, 12b, 12c... et, à l'extrémité opposée par exemple 13a, 13b, 13c..., d'un logement 14a, 14b, 14c... de forme complémentaire à ladite partie en saillie.For this purpose, each module 10a, 10b, 10c ... is provided at one of its ends for example 11a, 11b, 11c ... with a projecting part 12a, 12b, 12c ... and, at the opposite end, for example 13a, 13b, 13c ..., of a housing 14a, 14b, 14c ... of shape complementary to said projecting part.

Pour former un tronçon 1, les modules 10a, 10b, 10c... sont juxtaposés en sens inverse les uns par rapport aux autres, puis assemblés par des moyens appropriés non représentés, de façon à former une succession de parties en saillie et de logements.To form a section 1, the modules 10a, 10b, 10c ... are juxtaposed in opposite directions with respect to each other, then assembled by suitable means not shown, so as to form a succession of projecting parts and housings .

Ainsi, les tronçons 1 comportent à chaque extrémité une succession de parties en saillie et de logements décalés par rapport à ceux de l'extrémité de l'autre tronçon placé en regard.Thus, the sections 1 comprise at each end a succession of projecting parts and housings offset relative to those of the end of the other section placed opposite.

Tous les modules 10a, 10b, 10c... sont donc indentiques, réversibles, et interchangeables les uns avec les autres.All modules 10a, 10b, 10c ... are therefore identical, reversible, and interchangeable with each other.

Selon les dimensions de la brèche à franchir une seule paire de tronçons 1 peut être utilisée ou plusieurs paires de tronçons 1 peuvent être placées bout à bout.According to the dimensions of the breach to be crossed, a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end.

Dans le cas d'une utilisation d'une seule paire de tronçons 1, les parties en saillie 12a, 12b, 12c... forment des moyens d'accrochage sur les rives de la brèche.In the case of using a single pair of sections 1, the protruding parts 12a, 12b, 12c ... form hooking means on the banks of the breach.

Ces parties en saillie 12a, 12b, 12c... assurent les fonctions de stabilité, d'ancrage sur le terrain et une continuité parfaite du profil courbe de la travure.These projecting parts 12a, 12b, 12c ... provide the functions of stability, anchoring on the ground and perfect continuity of the curved profile of the span.

L'utilisation d'une seule paire de tronçons 1 est permise grâce aux différentes caractéristiques desdits tronçons 1. Il s'agit, d'une part, du profil du chemin de roulement qui est défini suivant une courbe allongée et, d'autre part, de l'aménagement des parties en saillie 12a, 12b, 12c... disposées à chaque extrémité des tronçons 1.The use of a single pair of sections 1 is permitted thanks to the different characteristics of said sections 1. It is, on the one hand, the profile of the raceway which is defined according to an elongated curve and, on the other hand , of the arrangement of the projecting parts 12a, 12b, 12c ... arranged at each end of the sections 1.

Cette possibilité est un avantage important.This possibility is an important advantage.

En effet, les travures utilisées jusqu'à présent se composent, en général, de trois paires de tronçons indissociables et ce pour réaliser un "pont" dont la forme générale est reprise dans la présente demande par une seule paire de tronçons 1.In fact, the bridges used up to now consist, in general, of three pairs of inseparable sections and this in order to produce a "bridge" whose general shape is taken up in the present application by a single pair of sections 1.

Dans le cas d'une utilisation de plusieurs paires de tronçons 1 placées bout à bout, les parties en saillie 12a, 12b, 12c... et les logements 14a, 14b, 14c... forment des organes d'emboîtement de plusieurs paires de tronçon 1 placées en regard les unes des autres.In the case of the use of several pairs of sections 1 placed end to end, the protruding parts 12a, 12b, 12c ... and the housings 14a, 14b, 14c ... form interlocking members of several pairs of section 1 placed facing each other.

Ces moyens de liaison 12a, 12b, 12c... et 14a, 14b, 14c... permettent de pouvoir utiliser un nombre de paires de tronçons 1 correspondant aux dimensions de la brèche à franchir.These connecting means 12a, 12b, 12c ... and 14a, 14b, 14c ... make it possible to be able to use a number of pairs of sections 1 corresponding to dimensions of the breach to be crossed.

Les modules 10a, 10b, 10c... peuvent être réalisés par moulage en un matériau léger de faible densité, de haute résistance et de faible épaisseur tel qu'un matériau composite.The modules 10a, 10b, 10c ... can be produced by molding in a light material of low density, high resistance and of low thickness such as a composite material.

Compte-tenu de la conception des modules, il suffit d'un seul type de moule pour réaliser l'ensemble des modules et d'assembler lesdits modules par exemple par collage, en sens inverse les uns par rapport aux autres pour former un tronçon.Given the design of the modules, a single type of mold is sufficient to produce all of the modules and to assemble said modules, for example by gluing, in opposite directions with respect to each other to form a section.

Le nombre de modules juxtaposés est donc facilement modifiable en fonction de la largeur du chemin de roulement que l'on désire obtenir.The number of juxtaposed modules is therefore easily modifiable depending on the width of the raceway that one wishes to obtain.

Cette disposition permet donc de réaliser des travures modulables de grande longueur et de haute résistance possédant un rapport volume-poids le plus faible possible.This arrangement therefore makes it possible to produce modular spans of great length and of high strength having a volume-to-weight ratio as low as possible.

Les travures selon l'invention possèdent également des qualités de robustesse, de solidité mécanique et de résistance à la flexion et présentent une aptitude toute particulière à la rapidité de pose, mais aussi une légèreté facilitant leur transport et leur mise en oeuvre.The spans according to the invention also have qualities of robustness, mechanical solidity and resistance to bending and have a very particular aptitude for the speed of laying, but also a lightness facilitating their transport and their implementation.

Claims (6)

Travure transportable légère pour le franchissement de brèches comprenant au moins une paire de tronçons (1) parallèles et reliés entre eux pour former un chemin de roulement, chaque tronçon se composant de plusieurs modules (10a, 10b, 10c...) identiques, réversibles et interchangeables, caractérisée en ce qu'elle comprend plusieurs paires de tronçons (1) placées bout à bout, comportant à chacune de leurs extrémités des moyens d'accrochage (12a, 12b, 12c...) sur les rives de la brèche et formant également des moyens de liaison (12a, 12b, 12c... et 14a, 14b, 14c...) d'un tronçon avec l'autre placé en regard.Light transportable work for crossing breaches comprising at least one pair of parallel sections (1) and interconnected to form a raceway, each section consisting of several identical, reversible modules (10a, 10b, 10c ...) and interchangeable, characterized in that it comprises several pairs of sections (1) placed end to end, comprising at each of their ends hooking means (12a, 12b, 12c ...) on the banks of the breach and also forming connecting means (12a, 12b, 12c ... and 14a, 14b, 14c ...) of a section with the other placed opposite. Travure selon la revendication 1, caractérisée en ce que les moyens de liaison sont formés par des organes d'emboîtement (12a, 12b, 12c... et 14a, 14b, 14c...) de forme complémentaire.Work according to claim 1, characterized in that the connecting means are formed by interlocking members (12a, 12b, 12c ... and 14a, 14b, 14c ...) of complementary shape. Travure selon la revendication 2, caractérisée en ce que les organes d'emboîtement sont formés, à l'une des extrémités du module (10a, 10b, 10c...), par une partie en saillie (12a, 12b, 12c...), et à l'extrémité opposée, par un logement (14a, 14b, 14c...) de forme complémenaire à ladite partie en saillie.Work according to claim 2, characterized in that the interlocking members are formed, at one end of the module (10a, 10b, 10c ...), by a projecting part (12a, 12b, 12c .. .), and at the opposite end, by a housing (14a, 14b, 14c ...) of form complementary to said projecting part. Travure selon l'une quelconque des revendications précédentes, caractérisée en ce que les modules (10a, 10b, 10c...) sont réalisés par moulage.Work according to any one of the preceding claims, characterized in that the modules (10a, 10b, 10c ...) are produced by molding. Travure selon l'une quelconque des revendications précédentes, caractérisée en ce que les modules (10a, 10b, 10c...) sont réalisés en un matériau léger de faible densité, de haute résistance et de faible épaisseur.Work according to any one of the preceding claims, characterized in that the modules (10a, 10b, 10c ...) are made of a light material of low density, high resistance and of low thickness. Travure selon la revendication 5, caractérisée en ce que le matériau léger de faible densité et de haute résistance est un matériau composite.Work according to claim 5, characterized in that the light material of low density and high resistance is a composite material.
EP19900403658 1989-12-26 1990-12-18 Light transportable bridge element for surmounting gaps Expired - Lifetime EP0435741B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8917193 1989-12-26
FR8917193A FR2656353B1 (en) 1989-12-26 1989-12-26 LIGHT TRANSPORTABLE WORK FOR CROSSING BREACHES.

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EP0435741A1 true EP0435741A1 (en) 1991-07-03
EP0435741B1 EP0435741B1 (en) 1993-02-10

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EP19900403658 Expired - Lifetime EP0435741B1 (en) 1989-12-26 1990-12-18 Light transportable bridge element for surmounting gaps

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EP (1) EP0435741B1 (en)
JP (1) JPH04261906A (en)
CA (1) CA2033160A1 (en)
DE (1) DE69000908T2 (en)
ES (1) ES2040089T3 (en)
FR (1) FR2656353B1 (en)

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FR2701969A1 (en) * 1993-02-25 1994-09-02 Desvigne Claude Jean Modular bridge
WO2012115751A1 (en) * 2011-02-22 2012-08-30 Ata Engineering, Inc. A modular folding bridge system and its method of execution
CN106758761A (en) * 2016-12-12 2017-05-31 湖北华舟重工应急装备股份有限公司 Assembled modularization bridge and application method

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CN102425102B (en) * 2011-08-30 2013-08-07 四川加力机电有限公司 Ship and bridge dual-purpose device

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DE2819405A1 (en) * 1978-05-03 1979-11-08 Dieter Knauer Extensible boom for loading materials - comprises sliding sleeves with male and female portions each with ramp faces
US4200946A (en) * 1978-11-16 1980-05-06 Westland Aircraft Limited Load-supporting structures
FR2570400A1 (en) * 1984-09-18 1986-03-21 Quacchia Gerard Device for the rapid assembly of a gangway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701969A1 (en) * 1993-02-25 1994-09-02 Desvigne Claude Jean Modular bridge
WO2012115751A1 (en) * 2011-02-22 2012-08-30 Ata Engineering, Inc. A modular folding bridge system and its method of execution
US20130340183A1 (en) * 2011-02-22 2013-12-26 Ata Engineering, Inc. Methods and apparatus for a modular crossing system
CN106758761A (en) * 2016-12-12 2017-05-31 湖北华舟重工应急装备股份有限公司 Assembled modularization bridge and application method

Also Published As

Publication number Publication date
EP0435741B1 (en) 1993-02-10
FR2656353A1 (en) 1991-06-28
CA2033160A1 (en) 1991-06-27
DE69000908T2 (en) 1993-06-03
DE69000908D1 (en) 1993-03-25
FR2656353B1 (en) 1992-07-24
JPH04261906A (en) 1992-09-17
ES2040089T3 (en) 1993-10-01

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