EP2627829B1 - Pont modulaire - Google Patents

Pont modulaire Download PDF

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Publication number
EP2627829B1
EP2627829B1 EP11818991.9A EP11818991A EP2627829B1 EP 2627829 B1 EP2627829 B1 EP 2627829B1 EP 11818991 A EP11818991 A EP 11818991A EP 2627829 B1 EP2627829 B1 EP 2627829B1
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EP
European Patent Office
Prior art keywords
elements
crossmembers
bridge
bridge according
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11818991.9A
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German (de)
English (en)
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EP2627829A1 (fr
Inventor
Kerstin Bierbrauer
Thomas Dernbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krauss Maffei Wegmann GmbH and Co KG
Original Assignee
Krauss Maffei Wegmann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Krauss Maffei Wegmann GmbH and Co KG filed Critical Krauss Maffei Wegmann GmbH and Co KG
Publication of EP2627829A1 publication Critical patent/EP2627829A1/fr
Application granted granted Critical
Publication of EP2627829B1 publication Critical patent/EP2627829B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • E01D15/124—Folding or telescopic bridges; Bridges built up from folding or telescopic sections
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/40—Plastics

Definitions

  • the invention relates to a modular bridge with side elements which are interconnected in the longitudinal direction, and with cross members which connect the side elements in the transverse direction, and support elements, which are arranged to form a traffic route on the cross members.
  • Modular bridges are used as temporary bridges to cross rivers or ditches. Such bridges are usually in a state in which they are broken down into their components, to a site spent. Often it is necessary that the bridges at the site in a short time with little effort from the components can be built.
  • the US 2007/0028533 A1 describes a system for assembling promenades, carriageways and platforms by driving piles into the ground.
  • From the GB 902 945 A is a support structure, in particular for collapsible bridges, known.
  • This trough bridge has side members that are longitudinally interconnected. Furthermore, the bridge has plate-shaped transverse elements, which connect in each case opposite side elements in the transverse direction. These transverse elements are designed as roadway elements, which form a traffic route in the longitudinal direction, which is usable for crossing the bridge.
  • the transverse elements are designed as full-surface roadway elements.
  • the plates extend over the entire area between the opposite side elements and have a high weight, which hampers the handling of the components in the construction of the bridge.
  • the object of the invention is to provide a bridge with reduced weight, which can be constructed in a simple manner.
  • the above-mentioned object is achieved in that the cross member to the side members in the area of the midpoint of the side members with respect are connected in the longitudinal direction, that two opposing transverse side members over precisely one cross member are interconnected so that on a Cross members in the longitudinal direction two support elements abut adjacent to each other and that connected segments of two side elements, a cross member and at least one support element, in particular two support elements consist.
  • the cross member may be formed such that they have a reduced weight.
  • the modular bridge can be easily constructed due to the reduced weight.
  • the components of the modular bridge may be side elements and / or cross members and / or support elements.
  • the components are substantially plate-shaped.
  • the components of the bridge can be designed flat, whereby they have an increased stability.
  • the side members, the cross member and / or the support elements are made of a fiber composite material.
  • the components can have a low weight with high stability.
  • an improved fatigue strength of the components can be made possible.
  • the components can be designed in this way be that they are recordable by one person alone.
  • the weight of the components may be less than 75 kg, in particular less than 45 kg, preferably less than 25 kg.
  • the cross member and the support elements cooperating, in particular interlocking, fixedly arranged connecting means for connecting the support elements with the cross members.
  • the connecting means may be integrally arranged on the cross members and / or the support elements. In a fixed, non-detachable connection of the connecting elements with the cross members and / or the support elements no loose connection means are required, whereby the bridge can be constructed in a simple manner.
  • the side elements have cooperating, in particular interlocking, fixedly arranged connecting means for connecting the side elements in the longitudinal direction.
  • the connecting means may be integrally arranged on the side members. In a fixed, non-detachable connection of the connecting means with the side members no loose connecting elements are required, whereby the bridge can be constructed in the longitudinal direction in a simple manner.
  • the connecting means are solid components of the cross member and / or the side members and / or the support elements.
  • the connecting means may be integrally arranged on the respective components, in particular be integrally formed.
  • the connecting means are not detachable and / or integrally connected to the cross members and / or the side members and / or the support elements.
  • an embodiment of the invention is advantageous in which the side elements arranged in the longitudinal direction are identical in particular with the side elements arranged in the region of the ends of the bridge.
  • the side elements By using identical side elements, the cost of manufacturing the components can be reduced.
  • the side elements need not be distinguished in the structure, so there is no risk of confusion. The same applies to the cross member and support elements.
  • a traffic route can be formed in the longitudinal direction.
  • the support elements can rest loosely on the cross member or be connected to the cross member.
  • two parallel support elements are arranged side by side on the cross members.
  • a traffic route with two parallel lanes can be formed.
  • a material-free area can be arranged in the area between the support elements and the side elements.
  • a light plate-shaped component in particular a grate, can be arranged in the area between the support elements.
  • such components are provided to improve pedestrian safety.
  • the cross member are spaced apart in the longitudinal direction.
  • the cross members may be formed as planar components, between which a material-free region is arranged in the longitudinal direction. This truss-like arrangement of the cross member may cause a reduction of the total weight of the bridge with sufficient stability.
  • the bridge cross member are arranged, which are designed as ramp elements. Via the ramp elements, easier access to the traffic route can be made possible.
  • the ramp elements may allow a level difference between the roadway of the bridge and the ground surrounding the end of the bridge.
  • the bridge has segments connected to one another, which consist of two side elements, a cross member and at least one support element, in particular two support elements.
  • the segments can be prefabricated during the construction of the bridge.
  • the components of the bridge can be designed such that no loose connection means are required for connecting and locking the components of a segment.
  • the side elements are pivotable about a horizontal axis extending in the longitudinal direction.
  • the side elements can be pivoted individually relative to adjacent side elements or pivoted together with adjacent side elements relative to the cross members.
  • the connectors each have a pin and a sleeve which are arranged concentrically to the pivot axis.
  • a side member can be connected to another side member and pivoted in the connected state.
  • the pin and the sleeve may be integrally connected to the respective side member.
  • the connector forms the pivot bearing for the side member.
  • the side member can be pivoted about an axis which is oriented parallel to the insertion direction of the connector.
  • the side elements in particular the front side, means for locking the pivoting movement, in particular a pin securing arranged, which cooperate with the adjacent side member.
  • a movement, in particular a pivoting movement, of the side elements are blocked against each other.
  • the side elements can be detected in the locking position.
  • a plurality of interlocked side members can be secured together against inadvertent pivoting.
  • For securing can be arranged between a side member and a cross member, a securing element, whereby the pivoting of a plurality of interconnected side elements is blocked.
  • the fastening element is preferably formed as an integral part of the cross member.
  • the fastening element can be arranged in one piece on the cross member, in particular be molded. More preferably, the support and / or the locking element are formed as an integral part of the side member. The support and / or the locking element can be arranged integrally on the side element. In a fixed, non-detachable connection of said elements with the respective components no loose locking elements are required to lock the cross member to the side member.
  • the fastening element is located on the support in such a way that a movement of the cross member is limited in a horizontal direction.
  • the movement of the cross member may be limited in a direction which is oriented substantially perpendicular to the direction in which the cross member is placed on the side member.
  • the movement of the cross member may be limited in one direction in the support plane.
  • a movement of the fastening element in the direction parallel to the pivot axis of the side member is limited by stops arranged on the side member.
  • the support may have laterally arranged stops, by which the movement of the applied fastener in the support plane can be limited.
  • the locking element cooperates with the fastening element such that a movement of the cross member is limited in the vertical direction.
  • the vertical direction may be the direction from which the fastener can be placed on the support.
  • the side member may have a recess or recess which forms an opening for insertion of the fastener.
  • the support can in be arranged the recess.
  • the locking element is designed as an inner portion of a recess. In the open position, the recess may be released for insertion of the fastening element.
  • the fastener can be placed on the support.
  • the support portion lying opposite the inner portion of the recess may be configured as a locking element. When pivoting the side member from the open position into the locking position, the locking element can be pivoted on the resting on the support fastener.
  • the inner portion of the recess blocks movement of the fastener against the Auflegeichtung.
  • the recess may have a further inner portion which acts as an inner stop for the end face of the cross member. After pivoting, the movement of the fastener can be limited by the inner stop.
  • a securing element for locking the pivoting movement is arranged between the cross member and the side member.
  • the side element can be locked in the locked position.
  • the pivoting of the side member from the locking position can be prevented in an open position.
  • the securing element can be connected directly or via further components with the cross member and the side member.
  • a securing element for locking the pivoting movement of a plurality of interconnected, side elements between a side member and a cross member may be arranged.
  • the pivot axis of the side member extends concentrically to a inner rounding of the fastening element and / or an outer rounding of the fastening element. If the pivot axis coincides with the center of the inner rounding of the fastener, the support can be pivoted under the overlying fastener, since the outer contour of the support at the inner rounding can slide along the fastener. Further, in a side member in which the pivot axis coincides with the center of the outer periphery of the fastening element, the locking element can be pivoted via the fastening element, since the locking element can be moved during pivoting about the outer circumferential surface of the fastening element. The concentric course of the curves thus enables the pivoting of the side member via the fastener from the open position into the locking position.
  • the fastening element has a inner rounding, the curvature of which runs concentrically to the curvature of a round surface of the support.
  • the locking element has a round surface, the curvature of which runs concentrically to the curvature of an outer rounding of the fastening element.
  • the locking element can be pivoted into a locking position, in which the locking element locks the fastening element in a form-fitting manner.
  • the cross member has a plurality of parallel arranged fastening elements at one end.
  • the fasteners may be arranged in the manner of a fork.
  • a recess in particular a groove, can be arranged.
  • a nose of the second component which is designed in particular as a stop.
  • the cross member between the fastening elements is configured trough-shaped.
  • the cross member may be designed such that it kinks upwards at the edge of the body to the fastening elements, in particular in the manner of a gooseneck.
  • the cross member can be mounted between the opposite side elements, wherein the body of the cross member is arranged at the level of or below the supports of the side members.
  • the support elements have a groove and on a cross member supporting the components, a connecting element is arranged, which has the spring. Since the connecting element which connects the two components, is arranged on a cross member which carries the two components, no loose connecting elements are required. The components can be plugged into the connecting element on the cross member during assembly and thus be connected together in a simple manner.
  • the connecting element is preferably formed as an integral part of the cross member.
  • a connecting element which is integrally arranged on the cross member, in particular integrally formed, no further loose locking elements are required to connect the two components.
  • the components are located on the cross member.
  • the support elements may in particular form parts of a traffic route which runs above the cross member.
  • the support elements are flush with each other.
  • the support elements can be connected flush so that they rest against each other at least partially frontally.
  • a common surface can be formed by the outer contour of the respective components, which faces away from the cross member.
  • the common surface of the flush-connected support elements can form a usable area, in particular a flat traffic route.
  • the connected support elements are shared by another component - the cross member - worn.
  • Advantageous embodiments of the invention with respect to this carrier will be discussed below:
  • the connecting element has a web which connects the spring to the cross member.
  • the web can be firmly connected to the spring and / or the cross member.
  • the web can be designed in the manner of a spacer, by means of which the spring can be fixed at a fixed distance from the surface of the carrier.
  • the height of the web can be adapted to the material thickness of the support elements in the region of the groove.
  • the connecting element has a T-shaped cross section.
  • the upper, horizontal leg of the T-shaped cross section can be formed by the spring.
  • the horizontal limb of the connection element can be positively connected to the grooves of the components.
  • the lower, vertical leg of the T-shaped cross section may be formed by the web connecting the spring to the cross member. In the connected state, the vertical leg can be arranged in the region between the end faces of the support elements.
  • a movement of the support elements in the direction of the groove is limited by arranged on the cross member or on the connecting element side stops.
  • the side stops may each abut a side surface of the connected support elements, which is arranged substantially perpendicular to the connected end face.
  • the side stops which are arranged on the connecting element, it is particularly advantageous if the side stops are arranged on the end of the spring.
  • the support elements can together in the spring be connected and held by means of arranged on the edge of the spring side stops in the spring.
  • the side stops can be integrally connected to the spring, in particular be integrally formed on this.
  • the cross member has a recess in which the connecting element is arranged.
  • the recess may be formed in the manner of a recess with a support surface for supporting the support elements.
  • the width of the recess can be adapted to the width of the support elements.
  • the recess may be adapted to receive the support elements along its width.
  • the support elements can be inserted for connection in the recess. In the region of the recess, the support elements can be inserted into the connecting element and thus connected to each other.
  • the recess is designed such that the support elements are flush with the cross member.
  • the support elements can be introduced into the recess.
  • a uniform surface can be formed with the same height. The occurrence of cracks or furrows between the support elements and the cross member can be prevented.
  • the depth of the recess corresponds to the thickness of the support elements.
  • the recess can be adapted to the components in such a way that a level surface results in the connected support elements in the transition region between the support elements and the cross member. This allows a common flat surface through the support elements and the cross member are formed, which can be used for example as a traffic route.
  • the side walls of the recess form the side stops.
  • the side walls can touch the support elements.
  • the side walls can act as a guide for the support elements when introducing the support elements into the recess.
  • the support elements may have a groove whose depth is substantially adapted to half the width of the spring.
  • the spring can be arranged in half in the groove of the first component and half in the groove of the second component.
  • the connected support elements may rest against a contact surface of the cross member, which extends over the entire width of the cross member.
  • Each of the connected support elements can rest on one half of the contact surface on the cross member.
  • the cross member is wider than the width of the spring. In a contact surface, which is configured wider than the spring, an increased stability of the connection between the support elements with each other and / or between the support elements and the cross member can be made possible.
  • the support elements may rest in the connected state with a region on the cross member which is larger than the region in which the groove extends.
  • the cross member which fulfills both a supporting and a connecting function with respect to the two support elements.
  • the support elements are described.
  • the side at which the support elements are connected to each other referred to as the front side.
  • the respective side of the two components, which faces the cross member is referred to as the carrier side.
  • Components which bear against the cross member are thus connected to one another at the end face and connected to the cross member on the carrier side.
  • a coupling element which has or forms the groove is arranged on the support elements in the region of the connection on the front side and / or on the support side.
  • the coupling element may be integrally connected to the support element.
  • the coupling element On the front side of the support elements, the coupling element may be formed as an extension of the support element.
  • the coupling element may protrude in the manner of an essay on the surface of the support element.
  • the depth of the groove with respect to an upper side of the support element is different from the depth of the groove with respect to an underside of the support element opposite the upper side.
  • the underside of the connected support element may face the cross member and in particular rest on the cross member.
  • the coupling element is preferably in the recess.
  • the support elements may abut each other frontally, while the coupling elements the support elements are connected together in the recess of the carrier.
  • a plurality of coupling elements are arranged in parallel on the support elements.
  • the coupling elements can be distributed over the front side of the support elements.
  • guide elements can be provided between the parallel coupling elements, which effect a guidance of the support elements against each other.
  • the groove extends over the entire width of the support elements. Such a groove can be in engagement with the spring over the entire width of the support element. This allows a high strength of the connection against tilting of the support elements against each other.
  • Support elements which are connected to each other by means of a tongue and groove connection can - as described above - connection side have a groove.
  • the required connecting element has in this case a spring which can be inserted into the grooves of the support elements. Without changing the principle of the tongue-and-groove connection, a spring can be arranged on the connection sides of the support elements, in contrast to the above embodiments.
  • a connecting element is required, which has a groove.
  • the support elements thus have a spring and on a cross member supporting the components, a connecting element is arranged, which has the groove. Since the connecting element which connects the two support elements is arranged on a cross member which carries the two support elements, no loose connection elements are required. The support elements can during assembly in the connecting element be plugged into the cross member and thus connected in a simple manner.
  • the side elements can be connected to one another via cross members and support elements can be arranged on the cross members to form a traffic route.
  • the cross member may be formed such that they have a reduced weight.
  • the modular bridge can be easily constructed due to the reduced weight.
  • the support element is arranged with an end portion on the cross member of the already constructed segment and is arranged with the opposite end portion on the cross member of the segment to be built.
  • a method is advantageous in which on the cross member, a fastening element is arranged, which is placed on a arranged on the side member support, wherein the side member from an open position, in the fixing element can be placed on the support, is pivoted into a locking position, in which a locking element arranged on the side element locks the fastening element.
  • the cross member can be connected in the open position of the side member with the side member and locked by pivoting the side member with this. In the locking position of the cross member is locked to the side member. Characterized in that the side member is pivotable in the locking position, no loose parts for locking the components are required.
  • this cross member may have for connecting the side elements in the transverse direction and support elements, which can be arranged to form a traffic route on the cross members.
  • the cross member may be formed such that they have a reduced weight.
  • the modular bridge can be easily constructed due to the reduced weight.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (15)

  1. Pont modulaire avec des éléments latéraux (2, 3) reliés entre eux dans la direction longitudinale et avec des supports transversaux (1) reliant les éléments latéraux (2, 3) dans la direction transversale et des éléments d'appui (20) disposés sur les supports transversaux (1) pour former une voie de communication,
    caractérisé en ce que,
    les supports transversaux (1) sont reliés aux éléments latéraux (2, 3) dans la région du point central des éléments latéraux (2, 3) par rapport à la direction longitudinale,
    deux éléments latéraux (2, 3) opposés dans la direction transversale sont reliés entre eux via précisément un support transversal (1),
    deux éléments d'appui (20) reposent l'un contre l'autre sur un support transversal (1) dans la direction longitudinale, et
    les segments (53) raccordés les uns aux autres du pont se composent de deux éléments latéraux (2, 3), d'un support transversal (1) et d'au moins un élément d'appui (20), notamment de deux éléments d'appui (20).
  2. Pont selon la revendication 1, caractérisé en ce que les éléments latéraux (2, 3) et les supports transversaux (1) comportent des moyens de liaison (6, 7) disposés fixement et interagissant, notamment s'engrenant les uns dans les autres, pour relier les supports transversaux (1) aux éléments latéraux (2, 3).
  3. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les supports transversaux (1) et les éléments d'appui (20) comportent des moyens de liaison (23, 25) disposés fixement et interagissant, notamment s'engrenant les uns dans les autres, pour relier les éléments d'appui (20) aux supports transversaux (1).
  4. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison des éléments latéraux (2, 3) dans la direction longitudinale se produit via des liaisons par enfichage (13) et que les éléments latéraux (2, 3) comportent des moyens de liaison (14, 15) disposés fixement et interagissant, s'engrenant les uns dans les autres, pour relier les éléments latéraux (2, 3) dans la direction longitudinale.
  5. Pont selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les moyens de liaison (6, 7, 14, 15, 23, 25) sont des composants fixes des supports transversaux (1) et/ou des éléments latéraux (2, 3) et/ou des éléments d'appui (20).
  6. Pont selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les moyens de liaison (6, 7, 14, 15, 23, 25) sont reliés de façon non amovible et/ou d'un seul tenant avec les supports transversaux (1) et/ou les éléments latéraux (2, 3) et/ou les éléments d'appui (20).
  7. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments latéraux (2, 3) alignés dans la direction longitudinale sont identiques, notamment avec les éléments latéraux (2, 3) disposés dans la région des extrémités du pont (5).
  8. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que des supports transversaux (1) sont disposés dans la direction longitudinale au niveau des extrémités du pont, ces supports étant configurés sous la forme d'éléments de rampe (21).
  9. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments latéraux (2, 3) peuvent pivoter autour d'un axe horizontal (S) s'étendant dans la direction longitudinale.
  10. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les liaisons par enfichage (13) comportent respectivement un tenon (14) et une douille (13) disposés concentriquement par rapport à l'axe de pivotement (S).
  11. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison par enfichage (13) forment le palier pivotant de l'élément latéral (2, 3).
  12. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que des moyens de verrouillage du mouvement de pivotement, notamment une sécurité par boulon (17), sont disposés au niveau des éléments latéraux (2, 3), notamment sur le côté avant, ces moyens interagissant avec l'élément latéral (2, 3) connexe.
  13. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que deux éléments d'appui (20) parallèles sont disposés côte à côte sur les supports transversaux (1).
  14. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les supports transversaux (1) comportent un élément de fixation (6, 6') reposant sur un support (7, 7') disposé au niveau de l'élément latéral (2, 3), l'élément latéral (2, 3) pouvant pivoter d'une position ouverte dans laquelle l'élément de fixation (6, 6') repose sur le support (7, 7') jusque dans une position de verrouillage dans laquelle un élément de verrouillage (8, 8') disposé au niveau de l'élément latéral (2, 3) verrouille l'élément de fixation (6, 6').
  15. Pont selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments d'appui (20) sont reliés aux supports transversaux (1) par une liaison rainure-ressort (45).
EP11818991.9A 2010-10-13 2011-10-10 Pont modulaire Active EP2627829B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010038168A DE102010038168A1 (de) 2010-10-13 2010-10-13 Modulare Brücke und Verfahren zum Aufbau einer modularen Brücke
PCT/DE2011/075248 WO2012059096A1 (fr) 2010-10-13 2011-10-10 Pont modulaire et procédé de construction d'un pont modulaire

Publications (2)

Publication Number Publication Date
EP2627829A1 EP2627829A1 (fr) 2013-08-21
EP2627829B1 true EP2627829B1 (fr) 2016-11-30

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EP11818991.9A Active EP2627829B1 (fr) 2010-10-13 2011-10-10 Pont modulaire

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Country Link
EP (1) EP2627829B1 (fr)
DE (1) DE102010038168A1 (fr)
WO (1) WO2012059096A1 (fr)

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GB2533818B (en) 2015-01-05 2021-03-03 Bae Systems Plc Mobile bridge apparatus
DE102015115364A1 (de) * 2015-09-11 2017-03-16 Krauss-Maffei Wegmann Gmbh & Co. Kg Kuppelvorrichtung zur Verbindung zweier Brückenelemente
CN111622082B (zh) * 2020-05-12 2022-04-01 国网浙江省电力有限公司湖州供电公司 一种新型便携式拼接桥
CN112523064A (zh) * 2020-12-03 2021-03-19 梁伟虹 一种水利工程用多用型水渠组合桥
WO2022213216A1 (fr) * 2021-04-09 2022-10-13 Snbc Inc. Pont modulaire transportable

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EP2627829A1 (fr) 2013-08-21
WO2012059096A1 (fr) 2012-05-10
DE102010038168A1 (de) 2012-04-19

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