EP0757131A1 - Brückenteil, insbesondere zur Überwindung von Gräben durch Fahrzeuge - Google Patents

Brückenteil, insbesondere zur Überwindung von Gräben durch Fahrzeuge Download PDF

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Publication number
EP0757131A1
EP0757131A1 EP96401710A EP96401710A EP0757131A1 EP 0757131 A1 EP0757131 A1 EP 0757131A1 EP 96401710 A EP96401710 A EP 96401710A EP 96401710 A EP96401710 A EP 96401710A EP 0757131 A1 EP0757131 A1 EP 0757131A1
Authority
EP
European Patent Office
Prior art keywords
spout
span
access
fixed
central box
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.)
Granted
Application number
EP96401710A
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English (en)
French (fr)
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EP0757131B1 (de
Inventor
Henri Aubert
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.)
CNIM Groupe SA
Original Assignee
Constructions Industrielles de la Mediterrane CNIM SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Constructions Industrielles de la Mediterrane CNIM SA filed Critical Constructions Industrielles de la Mediterrane CNIM SA
Publication of EP0757131A1 publication Critical patent/EP0757131A1/de
Application granted granted Critical
Publication of EP0757131B1 publication Critical patent/EP0757131B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the present invention relates to a span structure intended in particular for crossing breaches by vehicles, such as armored engineering vehicles.
  • Document FR-B-2 683 837 in the name of the applicant describes a span structure arranged on a transport vehicle so as to be deposited alone or in association with another identical span structure over a gap by a appropriate removal system mounted on the transport vehicle.
  • the object of the invention is to improve the span structure described in the above document by producing a span structure which makes it possible to better withstand the forces applied to it or to an end-to-end assembly of span structures during of the launching phase of the span structure or of the span structures assembled above the breach to be crossed or during the passage of vehicles over the span structure or the assembled span structures arranged above the breach.
  • the invention provides a span structure intended in particular for crossing breaches by vehicles, such as armored engineering vehicles, formed by at least one span element comprising a rigid central box with an upper raceway and two access spouts assembled respectively at the two ends of the central box so as to extend the raceway of the central box, one of the access spouts being fixed to the central box on the one hand by a transverse pivot axis and d on the other hand by unlockable locking means allowing the access spout to occupy a low position of support on an edge of a breach or a high or raised position for coupling to an access spout of another element of span, and which is characterized in that the locking means comprise at least two parallel tie-forming elements arranged symmetrically to the longitudinal axis of the span element and articulated on the access spout by two fixed transverse axes; and two transverse axes of locking with controlled displacement making it possible to respectively fix the two elements forming pulling to the central box at two different positions corresponding respectively to the low
  • the pivot axis of the above-mentioned lifting access spout is located in the lower part thereof and the locking means of this spout are located in the upper part of the spout and of the central box.
  • transverse locking axes are mounted movable respectively in two bores of the central box and can each be engaged in one of two bores of the corresponding tie-forming element defining the two low and raised positions of the access spout.
  • the means for controlling the movement of the two transverse locking axes comprise a transverse shaft rotatably mounted in a housing secured to the central box; two threaded rods secured respectively to the two ends of the rotary shaft coaxially with the latter and on each of which is assembled an internally threaded sleeve constituting a transverse locking axis; and a means for driving the rotary shaft in rotation so as to move the two sleeves in translation in opposite directions from an unlocking position to a locking position of the tie-forming elements.
  • the rotary shaft rotation drive means comprises a drive rod passing through the central box and one end portion of which is rotatably mounted in the support housing of the rotary shaft and carries a bevel gear meshing with another bevel gear fixed to the rotary shaft, the other end of the drive rod being mechanically coupled to a pinion mounted for rotation on the central box on one side thereof and driven in rotation by a chain of transmission.
  • the other end of the drive rod is coupled to the axis of rotation of the lateral pinion by a universal joint.
  • the locking pin of a corresponding tie-forming element passes through the bore defining the raised position of the access spout according to a clearance making it possible to abut the front support faces of the access spout and of the central box during passage of vehicles on the span element.
  • the span structure also comprises means for locking the liftable access spout of the span element on a fixed access spout of another adjacent span element to assemble the two span elements together and comprising, each side of the liftable access spout, a horizontal connecting rod mounted on the pivot axis of the liftable access spout by means of a articulation ball joint and fixed to the central box by means of an elastic stop, a vertical connecting rod connected to the lifting spout by means of a spherical stop and to the horizontal rod by means of a bushing allowing the passage of a transverse axis of controlled sliding locking arranged on one side of the spout fixed access of the other span element at the end thereof, so that in the locked position of the access spout raised from the span element on the fixed access spout of the other span element, each spherical stop and each elastic stop absorb the lateral forces exerted on the span elements assembled during the launching of these elements above a breach and each vertical connecting rod takes up the vertical forces
  • the aforementioned spherical stop comprises a spherical bearing nut screwed onto the threaded end of the vertical connecting rod and resting on a conjugated spherical surface of a base fixed on a support part integral with the aforementioned lifting spout, the upper part of the vertical connecting rod passing through the support part and the base.
  • the elastic stop is fixed between the central box and a radial lug secured to the horizontal rod at its articulation with the central box.
  • the means for controlling the displacement of the two transverse axes of the fixed access spout of a span element comprise a transverse shaft rotatably mounted in a housing secured to the end of the fixed spout; two threaded rods secured respectively to the two ends of the rotary shaft coaxially with the latter and on each of which is assembled an internally threaded sleeve constituting a transverse locking axis; and a means for driving the rotary shaft in rotation so as to move the two sleeves in translation in opposite directions from an unlocking position to a locking position.
  • the means for driving the rotary shaft in rotation comprises a drive rod passing through the fixed access spout and one end part of which is mounted for rotation in the support box for the rotary shaft and carries a pinion bevel meshing with another bevel gear integral with the rotary shaft, the other end of the drive rod being mechanically coupled to a pinion rotatably mounted on the fixed spout on one side thereof and driven in rotation by a chain of transmission.
  • the other end of the aforementioned drive rod is coupled to the axis of rotation of the lateral pinion by a universal joint.
  • the end of the liftable access spout of the span element is fixed to the fixed access spout of the other span element by two parallel hook-shaped parts integral with the fixed access spout near the edges of the latter and respectively engaging in two longitudinal notches made at the end of the liftable access spout.
  • the fixed access spout of the other span element comprises two lateral angled stops integral with the end of the fixed access spout and transversely holding the corresponding part of the liftable access spout bearing on the access spout fixed.
  • the span structure comprises two span elements with parallel upper raceways and whose central boxes are connected together by two arms of connection and the two access spouts in front or behind of the two span elements are respectively fixed and liftable.
  • Figure 1 is a schematic view showing a vehicle for depositing a span over a gap and consisting of several span structures according to the invention.
  • Figure 2 is a detailed top view of a span element of a span structure of the invention.
  • FIG. 3 is a sectional view along line III-III of FIG. 2.
  • Figure 4 is a sectional view along line IV-IV of Figure 2.
  • Figure 5 is a side view partially showing two access spouts assembled one on the other respectively of two different span elements shown partially.
  • FIG. 6 is an enlarged view of the part circled in VI of FIG. 3.
  • Figure 7 is a partial view of a span element and showing the different force components applied to the end of the span element bearing on an edge of a breach.
  • FIG. 8 represents the force components applied to the two spouts respectively of two different assembled span elements during the launching of these two span elements over a gap as shown in FIG. 1.
  • Figure 9 shows the passage of a vehicle over several spans assembled end-to-end deposited over a gap.
  • FIG. 10 shows the force components applied to the two spouts of two different span elements respectively during the passage of the vehicle as shown in FIG. 9.
  • Figure 11 is an enlarged view with partial section of the means for locking a lifting spout of a span element to a fixed spout of another span element.
  • Figure 12 is a sectional view along line XII-XII of Figure 1.
  • FIG. 13 is an enlarged view of the part of the span element indicated by the arrow XIII in FIG. 2.
  • FIG. 14 is an enlarged view of the part circled in XIV of FIG. 2.
  • FIG. 15 is an enlarged view of the part circled in XV of FIG. 5.
  • Figure 16 is an enlarged view showing a transverse holding stop of the lifting spout of a span element bearing on a fixed spout adjacent to another span element.
  • FIG. 17 is a top view of the stop along arrow XVII of FIG. 16.
  • FIG. 1 represents a road vehicle 1, such as a truck, arranged to transport at least one span 2 near a breach 3 in order to deposit it above the latter.
  • This figure shows that three spans 2 have been coupled end-to-end by a removal system (not shown in detail) in particular with launching beam 4 mounted on the vehicle 1 and occupy a so-called launching position thereof. above the breach 3.
  • each span 2 comprises two identical parallel span elements 5, only one of which is shown, connected together by connecting arms forming spacers 6 partially shown.
  • Each span element 5 comprises a central rigid body or box 7 with an upper track or raceway 8 and two access spouts 9, 10 assembled respectively at the two ends of the central box 7 so as to extend the upper raceway from this box.
  • the access spout 10 is fixed while the access spout 9 is fixed to the central box 7 opposite the fixed access spout 10 by a transverse articulation 11 allowing the spout 9 to occupy either a low position shown in particular in FIGS.
  • each span 2 comprises two pairs of rollers 13 fixed vis-à-vis the two internal side walls facing each other respectively of two span elements 5.
  • the rollers 13 allow the guidance of the span 2 on the launching beam 4 during the procedure for removing the span or spans coupled together as described in document FR-A-2 683 837.
  • each lifting access spout 9 of one span is fixed to the corresponding fixed spout 10 of the other span by locking means which will also be defined later.
  • the pivot axis 11 of the lifting access spout 9 of each span element 5 is located in the lower part of the spout 9 approximately in the same plane as that passing through the bottom of the central box 7 and the means locking 12 of the access spout 9 to the central box 7 are located in the upper part thereof.
  • the locking means 12 comprise two pairs of tie-forming elements 14 arranged parallel and symmetrically to the longitudinal axis of the span element 5, the two tie-forming elements 14 of a pair being mounted articulated on the access spout 9 by means of a fixed transverse axis 15 solidiary of the spout 9 while the two elements forming tie rod 14 of the other pair are also mounted articulated on the access spout 9 by means of another transverse axis fixed 15 secured to the spout 9 coaxially with the previous axis of articulation 15.
  • the locking means 12 also comprise two transverse locking axes 16 slidably mounted in a controlled manner respectively in two coaxial bores (referenced 24 in FIG. 13) of the central box 7 and each making it possible to fix two elements forming tie rod 14 of the same pair at two different positions corresponding respectively to the low and raised positions of the access spout 9.
  • the two tie-forming elements 14 each comprise two separate holes 17, 18 defining the two low and raised positions of the access spout 9 when the corresponding locking pin 16 is engaged in one or the other of the two holes 17, 18.
  • the spout 9 is fixed in the raised position and when the axis 16 locks these two elements forming the tie 14 by crossing the two other coaxial bores aux 18, the spout 9 is fixed in the low position.
  • the control means allowing the displacement of the two transverse locking axes 16 from their locking position to their unlocking position or vice versa comprise, as shown in more detail in FIG. 13, a transverse shaft 19 mounted for rotation, via bearings 20, for example of the needle type, in a housing 21 secured to the central box 7; two threaded rods 22 respectively secured to the two ends of the rotary shaft 19 coaxially with the latter by means of a coupling sleeve 23 and on each of which is assembled an internally threaded sleeve 16 constituting a transverse locking axis.
  • FIG. 13 shows the locking sleeve 16 of the same pair of tie-forming elements 14 in the retracted unlocking position thereof.
  • This figure also shows two coaxial bores 24 made in parts of the central box 7 defining two yokes 25 in which respectively engage the two elements forming tie rod 14 of the same pair so as to be fixed to the central box 7 by the sleeve corresponding lock 16.
  • the shaft 19 can be rotated by a mechanical mechanism comprising a drive rod 26 obliquely passing through the central box 7 and an end portion 26a of which is rotatably mounted in the support housing 21 of the 'shaft 19 by means of two bearings 27, for example of the needle type, and carries a bevel gear 28 meshing with another bevel gear 29 integral with the rotary shaft 19 in the middle thereof, the other end 26b of the drive rod 26 being coupled to an axis 30, rotatably mounted to the central box 7, by means of a joint of the Cardan type 31.
  • the rotary axis 30 port e a pinion 32 located on one side of the central box 7 outside of it and on which is mounted a transmission chain (not shown) driven at its end opposite the pinion 32 by another pinion (not shown) itself driven by a motor member, such as an electric motor, for example integral with the central box 7 at the bottom thereof.
  • a motor member such as an electric motor
  • the upper locking means 12 are protected from external stains, such as mud, by a transverse protective sheet 33 mounted articulated to the central box 7 by a transverse axis 34 extending over the entire width of this box and a joint d rubber seal 35 which, as best represented in FIG. 6, is in the form of a folded strip having one end fixed under the protective sheet 33 and its other end fixed to the upper part of the lifting spout 9 on which bears. the protective plate 33.
  • the locking pins 16 of the tie-forming elements 14 pass through the corresponding holes 17 with a clearance allowing the tie-forming elements 14 not to be stressed by forces when vehicles pass over the span in the service position as will be seen later.
  • each span element 5 also comprises means for locking the liftable access spout 9 on a fixed access spout 10 of another adjacent span element to form a span of greater length.
  • these locking means comprise a horizontal connecting rod 36 mounted on the pivot axis 11 of the liftable access spout 9 by means of a hinge ball joint 37 and fixed to the central box 7 by means of an elastic stop 38 made of material elastomer mounted between the front wall 7a of the central box 7 and a radial tab 39 secured to the horizontal rod 36 at its articulation to the central box 7.
  • the elastic stop 38 is fixed to the central box 7 and to the tab 39 by a stud 40 passing through the stop 38 and the lug 39 while being anchored in the box 7.
  • the locking means of the liftable access spout 9 to the fixed spout 10 also comprise a vertical connecting rod 41 connected to the liftable spout 9 by means of a spherical stop 42 which will be detailed and to the horizontal rod 36 by means of a sleeve 43 allowing the passage of a corresponding one of two transverse sliding locking controlled axes 44 disposed on both sides of the fixed access spout 10 of the other span element 5 at the end of it.
  • the spherical abutment 42 comprises a nut 45 with a spherical bearing 46 screwed onto the threaded end 41a of the vertical connecting rod 41 and bearing on a conjugated spherical surface 47 of a base 48 fixed on a support part 49 integral with the structure of the liftable spout 9, the upper part of the vertical connecting rod 41 passing through the support part 49 and the base 48.
  • the base 48 is fixed to the support part 49 by fixing screws 50, only one of which is shown.
  • the spherical stop 42 can be protected from the mud by an upper cover 51 fixed to the base 48 by any suitable means, for example fixing screws, and a protective rubber bellows 52 surrounding the lower part of the vertical connecting rod 41 by being suitably fixed and sealed at the lower end of the vertical connecting rod 41 and under the support part 49.
  • FIG. 11 shows the lifting spout 9 in the raised locking position before fixing on a fixed spout 10 of another span element 5 and, under these conditions, the horizontal rod 36 and vertical rod 41 assembly is maintained in the correct position for presenting and locking the raised beak 9 to the fixed beak 10 of the other span element assembled by the elastic stop 38.
  • the means for controlling the movement of the two transverse axes 44 of the fixed access spout 10 are similar to those allowing the movement of the transverse locking axes 16 and thus comprise a transverse shaft 53 mounted for rotation in a housing 54 secured to the end of the fixed spout 10; two threaded rods 55 secured respectively to the two ends of the rotary shaft 53 coaxially with the latter by means of a coupling sleeve 56 and on each of which is assembled an internally threaded sleeve constituting a transverse locking axis 44; and a means for driving in rotation the rotary shaft 53 so as to move in translation in opposite directions the two axes 44 slidably mounted in their respective bores 10a of the fixed access spout 10 from an unlocking position to a position for locking the end of the fixed access spout 10 and to the two sockets 43 for connecting the two horizontal 36 and vertical 41 connecting rods of the adjacent raised access spout.
  • the means for driving the rotary shaft 53 in rotation comprises a drive rod 58 obliquely passing through the structure of the fixed access spout 10 and one end portion 58a of which is rotatably mounted in the support housing 54 of the shaft 53 by two bearings 59, for example of the needle type, and carries a bevel gear 60 meshing with another bevel gear 61 integral with the rotary shaft 53, the other end 58b of the rod drive 58 being coupled via a Cardan joint type 62 to an axis 63 rotatably mounted on the fixed spout 10 on the side thereof facing the other span element of the same span 2, the axis 63 carrying a lateral pinion 64 on which is mounted a transmission chain (not shown) driven opposite the pinion 64 by a motor pinion of a drive member, such as an electric motor, integral fixed spout 10.
  • a drive rod 58 obliquely passing through the structure of the fixed access spout 10 and one end portion 58a of which is rotatably
  • Each fixed access spout 10 of a span element 5 comprises two parallel parts forming a pyramid-shaped hook 65 located on each side of the spout 10 opposite the end of this spout. These hook parts 65 are oriented towards the end of the fixed spout 10 and are intended to engage respectively in two longitudinal notches 66 of a raised spout 9 of another span element 5 situated at the end of the spout 9 on either side of it.
  • each hook-shaped part 65 of a fixed access spout 10 of a span engages in the corresponding notch 66 of the lifting spout 66 of the other span of so as to cross transversely these two span.
  • the pyramid shape of the hook parts makes them not very aggressive to the wheels of vehicles and allows these parts to be easily cleaned.
  • FIG. 7 represents the lifting spout 9 of a span element 5 of a span 2 bearing on the edge or the bank of a breach 3 and locked in the low position by the upper locking means 12.
  • This figure shows that the force components which are exerted at this end portion of span element 5 are such that the elements forming tie rod 14 of the locking means 12 work in compression as indicated by the two arrows F1. Because the liftable spout 9 occupies its low position, each nut 45 with spherical bearing 46 is disengaged from its corresponding support base 48 as clearly shown in FIG. 7.
  • FIG. 8 represents the situation according to which two span elements 5 of two different span are assembled together by the locking means comprising the horizontal 36 and vertical 41 rods and the sockets 43 on both sides of the spout 9 locked in the raised position by the elements forming tie rod 14 and the locking pins 44 engaged respectively in the two sockets 43 with the two nozzles 9 and 10 connected transversely by the hook-shaped stops 65 and the lateral stops 67.
  • the elements forming the tie rod 14 work in traction as indicated by the two arrows F2 and the bending moment created by the self-weight of each span is taken up on either side of each span element 5 by vertical forces F3 and F4 respectively at the end of the fixed spout 10 (support linear) and at the end of the liftable spout 9 (stops 65).
  • the horizontal 36 and vertical 41 connecting rods and the sockets 43 only provide the connection in the horizontal direction between the two spans 2 to the exclusion of any other effort.
  • connecting rods are free to go back up and therefore the end of the fixed spout 10 carries under the raised spout 9 and the elastic 38 and spherical stops 42 allow a lateral movement of the two connecting rods 36, 41 eliminating or limiting the transmission of lateral forces. so that these two connecting rods only undergo compression or traction forces, excluding bending forces, the span being of course connected transversely by the stops 65 and 67.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cartons (AREA)
  • Bridges Or Land Bridges (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Jib Cranes (AREA)
  • Body Structure For Vehicles (AREA)
EP96401710A 1995-08-02 1996-07-31 Brückenteil, insbesondere zur Überwindung von Gräben durch Fahrzeuge Expired - Lifetime EP0757131B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9509432 1995-08-02
FR9509432A FR2737512B1 (fr) 1995-08-02 1995-08-02 Structure de travure destinee en particulier au franchissement de breches par des vehicules

Publications (2)

Publication Number Publication Date
EP0757131A1 true EP0757131A1 (de) 1997-02-05
EP0757131B1 EP0757131B1 (de) 2000-09-06

Family

ID=9481660

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Application Number Title Priority Date Filing Date
EP96401710A Expired - Lifetime EP0757131B1 (de) 1995-08-02 1996-07-31 Brückenteil, insbesondere zur Überwindung von Gräben durch Fahrzeuge

Country Status (5)

Country Link
US (1) US5862556A (de)
EP (1) EP0757131B1 (de)
DE (1) DE69610174T2 (de)
FR (1) FR2737512B1 (de)
WO (1) WO1997005332A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433832A (zh) * 2011-12-07 2012-05-02 北京市三一重机有限公司 一种组合式天桥及其桥体模块

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526392B1 (en) * 1998-08-26 2003-02-25 International Business Machines Corporation Method and system for yield managed service contract pricing
DE19858328C1 (de) * 1998-12-17 2000-03-30 Dornier Gmbh Mobile Brücke
DE102004049969B8 (de) * 2004-10-14 2006-03-23 Military Mobile Bridges Gmbh Modulare Scherenbrücke sowie Verlegeeinrichtung und Verfahren zum Verlegen zerlegbarer Brücken
FR2889213B1 (fr) * 2005-07-27 2007-09-07 Mediterranee Const Ind Systeme de transport d'une travure par un vehicule routier pouvant etre transforme en vehicule amphibie pour permettre a tout vehicule routier de franchir une breche seche ou remplie d'eau
DE102006042251A1 (de) * 2006-09-08 2008-03-27 General Dynamics Santa Bárbara Sistemas GmbH Brückenelement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158618A5 (de) * 1971-10-26 1973-06-15 France Etat
EP0374019A1 (de) * 1988-12-13 1990-06-20 Constructions Industrielles De La Mediterranee C.N.I.M. System zum Transportieren und Ablegen von mindestens einem Brückenteil von einem Fahrzeug, wie ein Pionierpanzer
GB2251448A (en) * 1991-01-07 1992-07-08 Williams Fairey Eng Ltd Articulating arrangement for ramped bridge module
FR2683837A1 (fr) * 1991-11-15 1993-05-21 Mediterranee Const Ind Structure de travure destinee en particulier au franchissement de breches par des vehicules et systeme de transport et de depose de la structure.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713599A (en) * 1970-04-27 1973-01-30 Western Electric Co Apparatus for distributing a strand
FR2488926A1 (fr) * 1980-08-21 1982-02-26 France Etat Dispositif automatique d'assemblage a clin sur l'intrados ou l'extrados de deux elements de ponts et procede de mise en oeuvre
FR2488925A1 (fr) * 1980-08-21 1982-02-26 France Etat Dispositif d'accrochage a clin de deux elements de ponts sur intrados ou extrados et element de pont de comportant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158618A5 (de) * 1971-10-26 1973-06-15 France Etat
EP0374019A1 (de) * 1988-12-13 1990-06-20 Constructions Industrielles De La Mediterranee C.N.I.M. System zum Transportieren und Ablegen von mindestens einem Brückenteil von einem Fahrzeug, wie ein Pionierpanzer
GB2251448A (en) * 1991-01-07 1992-07-08 Williams Fairey Eng Ltd Articulating arrangement for ramped bridge module
FR2683837A1 (fr) * 1991-11-15 1993-05-21 Mediterranee Const Ind Structure de travure destinee en particulier au franchissement de breches par des vehicules et systeme de transport et de depose de la structure.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433832A (zh) * 2011-12-07 2012-05-02 北京市三一重机有限公司 一种组合式天桥及其桥体模块
CN102433832B (zh) * 2011-12-07 2014-11-19 北京市三一重机有限公司 一种组合式天桥及其桥体模块

Also Published As

Publication number Publication date
DE69610174T2 (de) 2001-05-10
EP0757131B1 (de) 2000-09-06
DE69610174D1 (de) 2000-10-12
US5862556A (en) 1999-01-26
WO1997005332A1 (fr) 1997-02-13
FR2737512B1 (fr) 1997-10-10
FR2737512A1 (fr) 1997-02-07

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