EP0490094B1 - Pont démontable et véhicule pour la pose du pont - Google Patents

Pont démontable et véhicule pour la pose du pont Download PDF

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Publication number
EP0490094B1
EP0490094B1 EP91119218A EP91119218A EP0490094B1 EP 0490094 B1 EP0490094 B1 EP 0490094B1 EP 91119218 A EP91119218 A EP 91119218A EP 91119218 A EP91119218 A EP 91119218A EP 0490094 B1 EP0490094 B1 EP 0490094B1
Authority
EP
European Patent Office
Prior art keywords
bridge
spindle
sections
drive shaft
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91119218A
Other languages
German (de)
English (en)
Other versions
EP0490094A1 (fr
Inventor
Hans-Norbert Dr.-Ing. Wiedeck
Wolfgang Diefendahl
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.)
ThyssenKrupp Foerdertechnik GmbH
Original Assignee
Krupp Foerdertechnik GmbH
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 Krupp Foerdertechnik GmbH filed Critical Krupp Foerdertechnik GmbH
Publication of EP0490094A1 publication Critical patent/EP0490094A1/fr
Application granted granted Critical
Publication of EP0490094B1 publication Critical patent/EP0490094B1/fr
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
    • E01D15/124—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
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the invention relates to a collapsible bridge, consisting of a plurality of mutually identical bridge sections, each with two laterally arranged, again mutually identical bridge elements, each with a lane carrier forming a lane and a lower flange connected to the latter via adjusting elements and adjustable in height to form an undervoltage, wherein the carriageway girders of a bridge section are connected to one another by cross girders and the carriageway girders and the lower chords of bridge sections arranged one behind the other can be coupled to one another, and a vehicle with a telescopic carrier for laying the bridge.
  • Layable bridges are used to drive vehicles with weights of up to approx. 70 t over obstacles (water, terrain cuts, etc.). Most of the obstacles are in a range of approx. 14 m, but vehicles should also be able to drive over obstacles of 40 to 45 m. It is known for this purpose to assemble collapsible bridges, depending on their length, from a different number of bridge sections. It is advantageous here to have the same bridge sections as either end or ramp sections or as middle or To use intermediate sections.
  • a generic bridge is known from DE-OS 38 14 502, in which the lower chords of the bridge elements are arranged in a straight line one behind the other and the carriageway girders forming the track form an upwardly formed polygon. Since the carriageway girders of the known bridge have a uniform length, the length of the lower chords and the struts connecting the lower girders to the carriageway girders must be varied depending on the position of the bridge element within the bridge and can only be locked or finally coupled thereafter. However, this has the disadvantage that it takes a considerable amount of time to assemble the entire bridge. In addition, the known bridge has the disadvantage that the overall height of a large bridge reaches a considerable degree, so that the vehicles have to drive over a "hill", which greatly reduces the translation capacity.
  • a bridge that can be assembled from individual elements is known from DE-OS 28 07 859.
  • various bridge elements stamp parts and middle or intermediate units
  • a separate undervoltage with a stiffening chain and mechanically adjustable posts are available.
  • the different elements result in increased transport costs compared to the same bridge elements.
  • only as many bridges can be created from the bridge elements as the number of ramp parts allows.
  • a collapsible bridge which consists of sections (ramp and middle sections) with two pairs arranged side by side Bridge elements is composed.
  • Each bridge element has a roadway girder forming a lane and a lower flange, which are connected to the roadway girder by means of posts arranged at the beginning and end of the bridge elements.
  • the pressure-resistant posts have a hinge in their center, so that they can be folded and the lower chords can be folded up against the carriageway girders. This results in a low transport height of the bridge elements compared to the finished bridge construction.
  • the corner points of the bridge girders have diagonally arranged tension elements which give the bridge girder or section additional stability.
  • the assembly of the finished bridge takes place individually on each bridge element, which leads to a considerable assembly time.
  • the bridge sections for the ramps and the main part are different.
  • the present invention has for its object to design a collapsible bridge of the type mentioned, that is, with mutually identical bridge sections, so that a substantially flat lane is created for the entire bridge and the bridge can be assembled in a short time, the bridge sections should have a low transport height and the bridge should be suitable for high loads.
  • the lower chord By forming the lower chord into several sections, the lower chord can be formed continuously for a central or intermediate section as well as on one side for a ramp or end section.
  • the independent coupling ability of the spindle sleeves with the drive shaft arrangement also serves this purpose.
  • the drive shaft arrangement can be assembled with the aid of the coupling elements located at its ends with the drive shaft arrangements of the remaining bridge sections to form a drive shaft arrangement which passes through the entire bridge, which is composed of several bridge sections, and which is uniform with regard to the torque transmission.
  • both bridge sections or elements facing each other are pressed in and by coupling only the closest spindle sleeves, two ramp sections are automatically formed, in which only one end of the lower chords is extended. If, on the other hand, at least three bridge sections are coupled with one another, then both drive shafts are pressed inwards at the middle or intermediate sections, whereby all spindle sleeves of this or these sections are coupled to the drive shaft arrangement and the lower flange of this or these sections is accordingly in all the way down.
  • a spindle sleeve is arranged at each front end of each bridge element and the other spindle sleeve of the lower chord sections is combined to form a common central spindle sleeve of double length, the outer spindle sleeves having a coupling which can be actuated by axially displacing the relevant drive shafts into the interior of the bridge element of the drive shaft in question can be connected, and the central spindle shaft can be connected to the drive shaft arrangement by a coupling which can be actuated by axially displacing both drive shafts into the interior of the bridge element.
  • the coupling for the central spindle sleeve is assigned an axially displaceable driving disk with at least one driver on the connecting element, which is axially displaceably guided in a longitudinal groove of the spindle sleeve.
  • the bridge elements between the carriageway girders and the ends of the lower flange sections hinged to the posts are provided with diagonally running stiffening elements that can be subjected to tension.
  • the bridge elements are provided with movable ramp parts.
  • a vehicle with a telescopic carrier as is known from DE-OS 21 16 120, which vehicle is characterized in that it has a rotary drive for coupling with the respective facing end the drive shaft assembly.
  • the rotary drive is advantageously arranged on an arm articulated on the boom support and designed as a hydrostatic motor.
  • the collapsible bridge 1 consists of several bridge sections 2 (2.1, 2.2, ..., 2.n), which are constructed from one another from the same parts (cf. FIG. 1).
  • Each bridge section 2 consists of two paired and parallel bridge elements 3, which in turn have the same structure with each other (see FIG. 2).
  • the bridge elements 3 have a continuous track carrier 4 forming a track path with two lateral box-shaped stiffeners 5.
  • the two bridge elements 3 of each bridge section 2 are rigidly connected to each other at the level of the carriageway beams 4 by a plurality of cross beams 6.
  • each bridge element 3 two drive shafts 7, 7 'are mounted in two bearings 8, 9 each fastened to the carriageway support 4.
  • the drive shafts 7, 7 ' have a coupling flange 11 which is alternately provided with corresponding recesses 12 and coupling bolts 13 pointing away from the shaft 7 or 7'.
  • the bolts 13 of the flanges 7 and 7 ' get into the recesses 12 of the other flange. So that the coupling bolts 13 are not damaged during the axial coupling even if they are not in alignment with the recesses 12, provision is made for the coupling bolts to be supported by springs, as described in a later exemplary embodiment.
  • the flanges 11 can also be provided with a serration or a spline profile.
  • a compression spring 14 is arranged, which tries to push the drive shafts 7, 7 'beyond the end of the bridge elements 3.
  • the compression spring 14 can be supported via a slide ring 15 against the bearing 9 or against the flange 11.
  • the drive shafts 7, 7 ' have a further, inner flange 16, which is alternately provided with coupling bolts 17 and corresponding recesses 18 directed towards the center of the bridge element 3.
  • the drive shafts 7, 7 ' are spaced between their inner ends.
  • Hollow spindle shafts or sleeves 21 are mounted axially displaceably on the drive shafts 7, 7 'and in relation to them in the direction of the ends of the bridge element 3.
  • a spindle head 22 with an internal thread is mounted, on the outer sides of which two pressure-resistant posts 23 are articulated on bolts 24.
  • the bolts 24 slide in guide grooves 25 running parallel to the carriageway supports 4, which are provided in sheets 26 arranged perpendicular to the carriageway supports 4 (cf. FIGS. 3 and 4).
  • the weight of the spindle heads 22 of the posts 23 and the parts hanging thereon is taken up by the guides 25 and the drive shafts 7 7 'and their bearings 8, 9 are thus relieved.
  • the spindle shafts 21 have a coupling flange 30 which is alternately provided with coupling bolts 31 and recesses 32 pointing to the respective end of the bridge element 3, corresponding to the bolts 17 and the recesses 18 of the flanges 16 .
  • a common hollow spindle shaft or sleeve 35 is mounted with opposite thread pitches.
  • the (common) spindle sleeve 35 is essentially twice as long as the shorter outer spindle sleeves 21 and - like that - is displaceably mounted relative to the drive shafts 7, 7 '.
  • the opposite direction of the thread pitches of the common spindle sleeve 35 is such that the thread pitch of the short spindle sleeves 21 with the respective associated end of the common long spindle sleeve is in opposite directions.
  • Spindle heads 36 are also arranged on the common long spindle sleeve 35, to which posts 37 are also articulated laterally.
  • the leadership and support of the spindle heads 36 on the post 37 is carried out in the same manner as in the Spindle heads 22 and the post 23.
  • a longer lower chord section 38 is articulated, at the outer ends of which a further section 39, 39 'is articulated which extends to the end face of the bridge element 3 .
  • the inner ends of the lower chord sections 38 are connected to one another in an articulated manner by a common short lower chord section 40.
  • the lower chord sections 38 to 40 together form the overall lower chord, designated 41, of the relevant bridge element 3.
  • a drive plate 43 is axially displaceable and freely rotatable.
  • This disc carries at least one point on its circumference a driver 44 which is guided in a longitudinal groove 45 of the long spindle sleeve 35.
  • the bridge elements 3 have coupling stops 47 which can be loaded under pressure at the level of the carriageway girders 4 and coupling points 50 which can be subjected to tension at the lower end of the stiffeners 5.
  • the coupling points 50 each have one or more adjacent hooks 52 which can be swiveled upward by a bolt 51 and a bolt 53 at the respective other corners.
  • the hooks 52 have a chamfer 54 with which they slide when two bridge sections 2 are pushed together over the associated bolts 53 of the other bridge section.
  • the hooks 52 and the bolts 53 each form a tensile coupling connection of the bridge sections.
  • the lower chords 41 have the coupling points 50 comparable coupling points 50 'that can be subjected to tension.
  • the sections 39, 39 'articulated on the outside on the long lower chord sections 38 each have one or more adjacent hooks 52' or a pin 53 'which can be pivoted upward about a pin 51'.
  • the drive plate 43 is axially displaceably mounted on the connecting element 19, when two bridge sections 2 are coupled together, only the two mutually facing drive shafts 7, 7 'of the bridge sections are pressed inwards.
  • the drive plate 43 does not experience the necessary axial pressure from both drive shafts 7, 7 'of the same bridge element, so that there is no torque transmission from the drive shafts 7, 7' to the central spindle sleeve 35.
  • both drive shafts 7, 7 ' are pushed inwards by the middle bridge section (s), so that both short spindle sleeves 21 of the bridge element in question are in coupling connection to the drive shaft arrangement 7, 19 , 7 'stand.
  • the inward pressure of the inner end faces of both drive shafts 7, 7 'on the drive plate 43 causes it to be rotated and the central spindle sleeve 28 via the drive 44 on the drive plate 43 and its own longitudinal groove 45 likewise the rotational movement of the drive shaft arrangement 7, 19, 7 'is subjected.
  • the driving disk 43 ' has axial recesses 58.
  • the drive shafts 107, 107 ' have bolts 59 on their inner ends at a corresponding point. If both drive shafts 107, 107 'are pressed in the direction of the drive plate 43' between two further bridge sections when coupling a bridge section 2, the bolts 59 engage in the recesses 58 and thus bring about a secure positive connection from the drive shafts 107, 107 ' Driving disc 43 'and from this to the central spindle sleeve 35 by a driver 44' fastened to the driving disc 43 'and the longitudinal groove 45' in the spindle sleeve 35. So that the bolts 59 can engage gently in the recesses 58, these are by springs in the Drive shafts 107, 107 'supported.
  • the bolts 13 of the flanges 11 and the bolts 31 of the flanges 30 can be supported by springs.
  • a spacer 60 with corresponding recesses 61 is provided, which is held away from the drive shafts 107, 107' by the pressure of a spring 62 and in this case prevents unintentional engagement of the bolts 59 in the recesses 58 of the drive plate 43 '.
  • bridge sections 2 are preassembled together that their length bridges the obstacle 64 to be bridged sufficiently.
  • an assembly bar can be placed over the obstacle.
  • One bridge section 2 ( 2.1, 2.2, ..., 2.n) after the other is placed on the beam with its cross members 6 with the lower flange 41 drawn in and (from the second) with the bridge section (s) already lying coupled and pushed in sections on the bar towards the other bank of obstacle 64.
  • a laying vehicle 65 with a telescopic boom bracket 66 is used for the fast and automatic laying of a dismountable bridge 1.
  • a carrier is e.g. B. disclosed in DE-OS 21 16 120.
  • the base body 69 of the carrier 66 and the pair of arms 68 each have a drive arrangement for advancing the bridge sections 2.
  • the drive arrangement 70 is shown at the top of the base body 69 of the boom support 66.
  • the drive 70 has a shaft, at the ends of which a roller 71 and a gear wheel 72 are fastened.
  • the rollers 71 engage in U-shaped rails 73, which are arranged under the cross beams 6 between the inner stiffeners 5 and extend in the longitudinal direction of the bridge sections 2 (the other telescopic shots or bodies of the cantilever beam 66 also carry rollers 71 for guiding the bridge sections 2 ).
  • the toothed wheels 72 engage in toothed racks 74 fastened to the bridge section. A clear feed can thus be achieved.
  • a pivot arm 76 which is movable by a hydraulic cylinder 75 and has a preferably hydrostatic rotary drive 77 at its free end, is articulated on the sides of the base body 69.
  • Each rotary drive 77 is provided with a coupling flange (not shown separately) which fully corresponds to the coupling flanges 11 of the drive shafts 7, 7 '.
  • the coupling flanges 11 of the drive shaft arrangement are provided with external teeth and the pivotable rotary drive 77 is provided with a correspondingly toothed pinion.
  • the ramp parts 80 have a base plate 81 which extends over the entire width of a lane. Box carriers 82 extending in the longitudinal direction are arranged below the plate 81. At their rear end, the ramp parts are provided with projections 83 which prevent the ramp parts 80 from slipping out of the bridge sections 2. Instead of the projections 83, tension elements (not shown) between the bridge section 2 and the ramp parts 80 can also be used. There is a scrap sheet 84 on each side of the plate 81.
  • the carriageway girder 4 has longitudinal grooves or recesses 85 corresponding to the box girders 82, in which the box girders 82 can slide.
  • the ramp parts can simply be pulled out and pushed in.

Landscapes

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

Claims (10)

  1. Pont démontable (1)
    se composant de plusieurs tronçons de pont (2) identiques entre eux qui comprennent chacun deux éléments de pont (3) latéraux à nouveau identiques entre eux, comportant une poutre sous chaussée (4) qui forme une voie de circulation et, reliée à cette poutre sous-chaussée, une semelle inférieure (41) par l'intermédiaire d'éléments de réglage permettant d'en modifier la hauteur par rapport à la poutre sous chaussée pour réaliser une sous-tension les poutres sous chaussée d'un tronçon de pont étant reliées entre elles par des traverses (6), les poutres sous chaussée et les semelles inférieures de tronçons de pont, placés les uns derrière les autres pouvant être accouplées entre elles,
    caractérisé en ce que
    dans chaque élément de pont (3)
    - la semelle inférieure (41) se compose de tronçons (38 à 40) reliés entre eux par articulation,
    - à deux tronçons de semelle inférieure (38) sont articulés deux montants continus (23, 37) qui sont articulés, par l'autre extrémité, chacun à une tête de broche (22, 36),
    - deux têtes de broche (22, 36) associées chacune à un tronçon de semelle inférieure (38) sont en prise avec des gaines de broche (21, 35),
    - à l'intérieur des gaines de broche (21, 35) est maintenu un dispositif à arbres menants (7, 19, 7') qui comprend, à ses extrémités, des éléments d'accouplement (11),
    - et les gaines de broches (21, 35) peuvent être reliées, chacune par l'intermédiaire d'accouplements séparés (16/30; 7, 7', 43, 44, 45) au dispositif à arbres menants (7, 19, 7').
  2. Pont selon la revendication 1, caractérisé en ce que le dispositif à arbres menants (7, 19, 7') de chaque élément de pont (3) se compose de deux arbres menants (7, 7') qui sont reliés entre eux, de manière rigide à la torsion, par un élément de jonction (19) et coulissent axialement l'un par rapport à l'autre,
    les deux arbres menants (7, 7') étant écartés du tronçon de pont (2) sous la pression d'un ressort accumulateur (14) ce qui les amènent à faire saillie d'un seul tronçon de pont (2) et en ce qu'au déplacement d'un arbre menant (7, 7') à l'encontre de la force du ressort accumulateur respectif (14) la gaine de broche (21) la plus proche et, au déplacement des deux arbres menants (7, 7') à l'encontre de la force des ressorts accumulateurs (14), toutes les gaines de broche (21, 35, 21) de l'élément de pont concerné (3) sont accouplées au dispositif à arbres menants (7, 19, 7').
  3. Pont selon la revendication 1 ou 2, caractérisé en ce que chaque élément de pont (3) présente, à chaque extrémité avant, une gaine de broche (21) et l'autre gaine de broche des tronçons de semelle inférieure (38) est réunie en une gaine de broche centrale commune (35) de double longueur, les gaines externes de broche (21) pouvant être reliées à l'arbre menant considéré (7 respectivement 7') par l'intermédiaire d'un accouplement actionnable (16/30) par le déplacement axial des arbres menants considérés (7, 7') à l'intérieur de l'élément de pont (3), et l'arbre médian de broche (35) pouvant être relié au dispositif à arbres menants (7, 19, 7') par l'intermédiaire d'un accouplement (7, 7', 43 à 45) actionnable par le déplacement axial des deux arbres menants (7, 7') à l'intérieur de l'élément de pont (3).
  4. Pont selon la revendication 3, caractérisé en ce que l'accouplement (7, 7', 43 à 45) présente, pour la gaine médiane de broche (35) un disque (43, 43') d'entraînement coulissant axialement sur l'élément de jonction (19) qui comprend au moins un toc d'entraînement (44, 44') guidé de manière à coulisser axialement dans une rainure longitudinale (45, 45') de la gaine médiane de broche (35).
  5. Pont selon la revendication 3 ou 4, caractérisé en ce que les accouplements (16/30; 7, 7', 43' à 45', 58, 59) sont du type à clabotage.
  6. Pont selon l'une des revendications 1 à 5, caractérisé en ce que les éléments de pont (3) présentent, entre les poutres sous chaussée (4) et les extrémités des tronçons de semelles (38) articulées aux montants (23, 37), des éléments d'étançonnement (56) sollicités en traction et s'étendant en diagonal quand la semelle inférieure 41 est sortie.
  7. Pont selon l'une des revendications 1 à 6, caractérisé en ce que les éléments de pont (3) présentent des parties de rampe mobiles (80).
  8. Véhicule (65) comprenant une console télescopique (66) pour la pose d'un pont (1) selon les revendications 1 à 7, caractérisé en ce qu'un entraînement rotatif (77) relié au véhicule (65) est prévu pour accoupler l'extrémité respectivement tournée (11) du dispositif à arbres menants (7, 19, 7') des éléments de pont (3).
  9. Véhicule selon la revendication 8, caractérisé en ce que l'entraînement de rotation (77) est disposé sur un bras articulé à la console (66).
  10. Véhicule selon la revendication 8 ou 9, caractérisé en ce que l'entraînement de rotation (77) présente un moteur hydrostatique.
EP91119218A 1990-12-05 1991-11-12 Pont démontable et véhicule pour la pose du pont Expired - Lifetime EP0490094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4038763A DE4038763A1 (de) 1990-12-05 1990-12-05 Zerlegbare bruecke und fahrzeug zum verlegen der bruecke
DE4038763 1990-12-05

Publications (2)

Publication Number Publication Date
EP0490094A1 EP0490094A1 (fr) 1992-06-17
EP0490094B1 true EP0490094B1 (fr) 1995-06-28

Family

ID=6419636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119218A Expired - Lifetime EP0490094B1 (fr) 1990-12-05 1991-11-12 Pont démontable et véhicule pour la pose du pont

Country Status (2)

Country Link
EP (1) EP0490094B1 (fr)
DE (2) DE4038763A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240270A1 (de) * 1992-12-01 1994-06-09 Krupp Foerdertechnik Gmbh Zerlegbare Brücke
DE4324266A1 (de) * 1993-07-20 1995-01-26 Fischer Artur Werke Gmbh Kassettenhalterung mit Klemmeinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE634986A (fr) * 1962-07-14
DE2116120A1 (de) * 1971-04-02 1972-10-12 Klöckner-Humboldt-Deutz AG, 5000 Köln Brückenlegegerät
DE2324646C3 (de) * 1973-05-16 1982-01-28 Fried. Krupp Gmbh, 4300 Essen Verfahren zum Montieren einer Brücke und gemäß dem Verfahren zu montierende Brücke, insbesondere zerlegbare Brücke
GB1587204A (en) * 1977-02-23 1981-04-01 Secr Defence Bridge reinforcements
DD212279A1 (de) * 1982-12-17 1984-08-08 Metalleichtbau Veb K Vorrichtung zum unterspannen von brueckenelementen
DE3814502C3 (de) * 1988-04-29 1995-08-03 Dornier Gmbh Brücke

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Publication number Publication date
DE4038763A1 (de) 1992-06-11
EP0490094A1 (fr) 1992-06-17
DE59105865D1 (de) 1995-08-03

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