WO2011055154A2 - Pont provisoire mobile - Google Patents

Pont provisoire mobile Download PDF

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Publication number
WO2011055154A2
WO2011055154A2 PCT/HU2010/000117 HU2010000117W WO2011055154A2 WO 2011055154 A2 WO2011055154 A2 WO 2011055154A2 HU 2010000117 W HU2010000117 W HU 2010000117W WO 2011055154 A2 WO2011055154 A2 WO 2011055154A2
Authority
WO
WIPO (PCT)
Prior art keywords
bridge
frame
rods
paired
joined
Prior art date
Application number
PCT/HU2010/000117
Other languages
English (en)
Other versions
WO2011055154A3 (fr
Inventor
Ferenc ALMÁSI
Original Assignee
Almasi Ferenc
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 Almasi Ferenc filed Critical Almasi Ferenc
Publication of WO2011055154A2 publication Critical patent/WO2011055154A2/fr
Publication of WO2011055154A3 publication Critical patent/WO2011055154A3/fr

Links

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 subject of the invention is a mobile emergency bridge structure designed especially for carrying by motor vehicles.
  • the document referred to above describes a mount structure having sides assembled of scissor-type paired rods. According to the patent specification the three sides are united by band joints so that the three sides may be folded onto each other, thus making the structure transportable.
  • the mount structure may consist of two to four side panels.
  • the invention entitled "Mobile emergency bridge” featuring an operational model and favourable presentation experience is the technically upgraded version of invention N° HU P 04 01242.
  • the patent application for invention was submitted to the Hungarian Patent Office on 3 rd November 2009; the HPO recognized this date as a date of application.
  • the report on the search for existing patent rights carried out by HPO and the additional written comments thereto cite the following documents: Dl : HU 226 315 Bl (see above); D2: US 4,628,560 Al; D3: GB 534,913 A; D4: CN 201187307 Y; D5: US 5,117,525 Al .
  • Document D2 exhibits a pantograph bridge structure transported to the desired location on a vehicle (a trailer).
  • the trailer is equipped with all the devices required for erection such as (telescopic) lift frame, wire ropes, hoist and hydraulic power cylinder.
  • the erecting masts for the wire ropes are erected at both bridge-heads after the spragging of the carrier trailer, then the pantograph bridge structure is rigged up; then the scissor-type frame structure is expanded by means of the wire ropes and hoists.
  • the preferred embodiment is used for bridging distances from 15 to 30 m.
  • the expanded bridge structure consists of an inverted triangular pantograph; the gangway is laid on the top side.
  • Document D3 describes a foldable scissor-type truss girder bridge structure.
  • the bridge structure is of U-shaped section providing and integrated truss girder for the gangway. Instead of the bisecting points the scissor-type paired rods are joined in an asymmetric fashion creating the bridge structure shown in Figure 1 of D3.
  • the model relates to a drawing driving ring-shaped supporting frame type combined scissor expansion / contraction pushing mechanism, particularly to a ring-shaped supporting frame type combined scissor expansion / contraction pushing mechanism drawn and driven by a travel cable and a pulley.
  • the ring-shaped frame type combined scissor expansion / contraction pushing mechanism comprises a plurality of ring-shaped supporting frames, wherein the roller wheels or the slippers at the bottom of the ring-shaped supporting frames are arranged in sequence on a ground rail or a smooth road; and a plurality of scissor arrays, wherein the scissor rod connecting point loops of the scissor arrays are arranged in sequence inside the scissor array mounting grooves on the lateral sides of the ring-shaped supporting frames and connected.
  • the power unit pulls and draws the travel cables to produce the power, and the power is transferred by the pulleys to move scissor arrays, thereby changing the scissor included angles, driving the ring-shaped supporting frames to move along the ground rail or the smooth road, and achieving the expansion / contraction pushing effect, as shown in the figures of the document.
  • Document D5 describes a take-apart drive-over bridge structure of low silhouette transported by a special vehicle to the far bank.
  • the bridge structure is assembled on the vehicle and then the cantilever of two halves slides over the obstacle to be bridged.
  • the bridge structure consists of two preassembled pieces lifted into final position in a separate phase of erection.
  • the essence of structure forming the subject of this invention is not the so-called lazy tong system consisting of several paired rods arranged in sequence in fixity contracting in a scissor-like fashion, and neither do the claims highlight this as a novel special feature.
  • the fundamental purpose of the mobile emergency bridge is to bridge, in the shortest possible time, a relatively large distance from the truck's platform or another suitable foundation designed to carry the full load of the expanded bridge structure.
  • the third special feature of this invention that transcends the known patents and discerns it from those is that for better use of space and higher strength it allows the use of a frame structure in the form of an isosceles triangle instead of a regular triangle using hinges aligned with the longitudinal axis of the structure.
  • the purpose and description of the mobile emergency bridge is summarised by the use of references.
  • the invention proposes a rapid deployment solution for an emergency bridge of 30 m to 40 m bridging capacity for the passage of persons, two-wheeled vehicles, light equipment and domestic animals designed for carrying without special road permits by truck.
  • the structure of the emergency bridge consists of scissor-like paired rods 1 connected in the middle by spindle - a solution well-known from the everyday practice.
  • the special feature of the solution is that the scissor-like paired rods are arranged in a triangle shape so that the joining of ends of three scissor-like paired rods with interconnecting pieces E through boreholes 2 constitutes a triangle-shaped element wherein the sides of paired rods 1 open in a scissor-like fashion.
  • By joining the triangle-shaped elements a structure expanding and contracting in a direction orthogonal to the section of the triangle of 15 to 30 ratio of expanded to contracted height (depending on dimensioning) is created. (It means that the contracted length of the light bridge structure of e.g. 20 m bridging capability can be as little as 1.2 m).
  • the bridge structure In order to commission the bridge structure it needs to be delivered on site, expanded and buttressed. Since the contracted bridge structure fits on properly modified platform 10 of truck 9 so that the dimensions of the truck do not exceed the travelling space on public roads, the emergency bridge can be delivered on site by truck.
  • the two bottom corners of one end of the triangular bridge structure are connected to the modified platform of the truck by means of joints 7.
  • the characteristic feature of the structure is that during the expansion of the bridge these joints approach each other. Accordingly, either one or both bottom joints on the platform of the truck must be allowed to travel axially, in a direction perpendicular to the expansion travel of the bridge structure. On the completed model one of joints 7 travels along slider 14 in axial direction.
  • the first step in the installation and operation of the bridge is that the carrier truck is orientated for correct incidence angle and direction; then the truck is anchored using outriggers 11 well known from practice.
  • the incidence angle interpreted here as the angle enclosed with the horizontal plane is important, because the bridge structure can be tilted upwards by approximately 30 degrees and downwards by 12 degrees relative to the plane defined by the base points of wheels of the truck. This means that if the bridge needs to be positioned just about horizontally and, considering the natural sag of the long bridge structure, the incidence angle of the truck may be in the 0 to 15 degrees range relative to the horizontal plane.
  • the direction of the truck is important because it determines the direction of the longitudinal axis of the bridge structure.
  • the second step in the installation of the bridge is to lift the structure by means of actuator 6 designed to tilt the bridge structure through power transmission. It is important to note that the actuator is fitted with bearings allowing rotation relative to the truck's platform so during the expansion of the bridge structure the transversal travel of one corner of the structure mentioned earlier causing the rotation of actuator connected in the centre-line of the structure does not bring about the seizing of the structure.
  • the third step in the installation of the bridge is to push out the free end of the structure above the chosen bridgehead by the use of actuator 5 designed for expansion / contraction.
  • Roller bed 12 facilitating the movement of components of the expanded bridge structure is designed to prevent the wear of stainless steel rail 13 fitting into the lower part of the platform exposed to frictional stress caused eventually by the natural sag of the bridge structure between the protruding part of the actuator and the bottom surface of the lower rods.
  • one end of the actuator can be connected to the middle spindle of the front bottom scissor-like paired rods falling towards truck 9, and the other end of the actuator to the middle spindle of the second or third bottom scissor-like paired rods falling towards the truck.
  • the fourth step in the installation of the bridge is to lower the end of the structure onto the chosen bridgehead. In this manner the bridge rests on the platform of truck standing on outriggers 11 and the chosen bridgehead.
  • An interesting option is that the eventual loading capacity of the structure introduces less risk during installation and mainly in the use of the bridge on the one hand, and on the other hand the bridge keeps its vaulted (or arched) shape following from the natural sag affecting favourably the load capacity of the bridge.
  • deck 8 consisting of preferably corrugated uniform sheets joining the hook fastened to the rod of bridge structure 5 farthest from the actuator.
  • the corrugated sheets joined by wire cable or similar bonding unit overlapping fully in contracted condition and slightly after expansion cover the bottom paired rods arranged in sequence along the entire length of the expanded bridge.
  • Wire ropes 15 provide stiffening of the bridge, facilitate the rapid forward movement and braking of components of the vaulted structure.
  • the engine of truck 9 placed in front serves as a counterweight that helps balancing the extended and not yet buttressed bridge. If the counterweight constituted of engine is insufficient, additional counterweights must be fixed to the front of the truck.
  • the angle enclosed between the rods of the scissor-like paired rods is usually between 120 and 60 degrees, where the former belongs to the shorter expansion span and the latter - to the longer expansion span of the bridge. Obviously these angles may be higher than 120 degrees at shorter expansion span, but in this condition the capacity utilization of the structure is low. At longer spans of expansion the angle enclosed between the rods of scissor-like pairs can be less than 60 degrees at the cost of a considerable decrease in the stability of the bridge.
  • the structure takes a load similar to a clamped beam so the loading of rods nearer to the truck is higher; for this reason the design of a structure of uniform strength wherein the cross-section of rods nearer to the truck is bigger is preferable. In this manner the dead weight of the structure can be minimized.
  • Rods of higher load capacity are required at the connecting points of tilting actuators 6 and pushing actuators 5, because along with the dead weight the structure is under higher pinpoint load at these locations.
  • the tilting and pusher actuators are preferably hydraulic cylinders, but they can also be screw-spindle units.
  • Figure N° 1 Perspective view of the expanded and lifted mobile emergency bridge.
  • the frame structure of the bridge is constituted of a row of rods consisting of paired rods 1.
  • the frame supported by open actuator 5 responsible for expansion / contraction is held together by couplers E.
  • the frame structure slightly vaults onto the far bank across the vehicle.
  • Figure N° 2 Side view of the collapsed mobile emergency bridge, with the bridge structure tilted. Note the key components moving and keeping aligned the structure.
  • Figure Na 4 Top view of the mobile emergency bridge, including wire cable and hoists.
  • Figure Ns 5 Rear view of the bridge structure on the platform with the hinges and skate; the vehicle is spragged.
  • Figure N2 6 Rear view of the bridge structure on the platform showing the frame structure in the form of an isosceles triangle, the hinge and the ladder.
  • Figure JV° 7 View of the bridge structure showing the expansion / contraction actuator, roller bed and stainless steel rail
  • Figure N° 8 Side view of the expanded mobile emergency bridge showing the deck components all along the structure
  • Figure N° 9 Corrugated sheet components of the gangway in a possible embodiment of the bridge structure.
  • the application options of the mobile emergency bridge offer a number of advantages.
  • the frame structure alone would be sufficient for bridging over to the far bank, yet the equipment complete with the deck moving smoothly along and allowing anchoring on the far bank offers means for facilitating practical disaster recovery and rescue operations e.g. by joining the second floor or balcony of a building affected by fire, flooding, mud, etc.
  • the stiffening of the entire structure is feasible using wire ropes drawn by hoists below or above the bridge deck; inside the frame special containers or trolleys can be moved back and forth by the alternating motion of two wire ropes.
  • the combined bridge structure can be redirected to other sites of emergency operations upon the completion of the job.
  • the carrier truck can lower, literally in a matter of minutes, the fully assembled bridge onto various points of the affected building.
  • the scissor-like rods of the mobile emergency bridge structure can be made of steel or light metal alloy, or reinforced polymer such as synthetic materials and resins reinforced with carbon-, glass- or kevlar fibre.

Landscapes

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

Abstract

L'objet de l'invention est une structure de pont combinée constituée d'un châssis porteur extensible, rigidifiable et escamotable et d'actionneurs qui déplacent ce dernier, ladite structure comprenant des sous-ensembles complémentaires et un tablier de pont. Le châssis porteur comprend des tiges jumelées en forme de ciseaux (1) reliées au centre de leur axe longitudinal, ce qui permet un mouvement articulé des tiges, dont au moins une partie comporte des trous alésés (2) à chaque extrémité pour enchevêtrer des broches d'articulation constituant des éléments de broches courbées en un angle défini (3), et des charnières (4) constituant des pièces d'interconnexion (E). Les tiges jumelées, disposées en séquence pour former au moins trois rangées, sont assemblées par des pièces d'interconnexion de façon à former un cadre rigide sous l'angle de plan des tiges jumelées. Un actionneur (5) gérant l'extension ou la contraction et un actionneur (6) gérant l'inclinaison, des liaisons rotule (7) joignant les deux coins inférieurs d'une extrémité du cadre, une plate-forme à galets (12) joignant quelques nœuds moyens inférieurs du cadre, et d'autres sous-ensembles complémentaires assurent conjointement le mouvement contrôlé de la structure de pont, tandis que le tablier du pont (8) servant de passage peut se déplacer avec le pont. La structure est installée sur la plate-forme d'un camion (9) équipé de longerons stabilisateurs (11) et est homologuée pour le transport routier. De manière générale, le pont est légèrement cintré. Le cadre peut être renforcé de câbles métalliques (15) et autres sous-ensembles complémentaires bien connus, de façon à permettre même le treuillage à l'intérieur de la structure. La structure à déploiement rapide de l'invention peut être utilisée dans des tâches de sauvetage d'urgence ou d'intervention en cas de désastre exigeant une très grande mobilité, notamment lors d'une inondation.
PCT/HU2010/000117 2009-11-03 2010-11-03 Pont provisoire mobile WO2011055154A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP0900688 2009-11-03
HU0900688A HUP0900688A2 (en) 2009-11-03 2009-11-03 Portable emergency bridge

Publications (2)

Publication Number Publication Date
WO2011055154A2 true WO2011055154A2 (fr) 2011-05-12
WO2011055154A3 WO2011055154A3 (fr) 2011-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2010/000117 WO2011055154A2 (fr) 2009-11-03 2010-11-03 Pont provisoire mobile

Country Status (2)

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HU (1) HUP0900688A2 (fr)
WO (1) WO2011055154A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005330A (zh) * 2014-01-17 2014-08-27 浙江贝欧复合材料制造有限公司 伸缩浮桥
CN104164833A (zh) * 2014-08-19 2014-11-26 中国人民解放军理工大学 一种伸缩式应急桥梁
CN107229292A (zh) * 2017-06-29 2017-10-03 湖北华舟重工应急装备股份有限公司 一种多传感器的自行舟桥电控系统
CN110080084A (zh) * 2019-06-04 2019-08-02 重庆交通大学 车载式伸缩桁架桥
CN110485255A (zh) * 2019-08-12 2019-11-22 三峡大学 一种折叠式应急桥梁及使用方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106592408B (zh) * 2016-12-09 2018-03-20 湖北华舟重工应急装备股份有限公司 折叠式应急通道及使用方法
CN108487043A (zh) * 2018-03-28 2018-09-04 中山市云恒电子科技有限公司 一种应急渡河车

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534913A (en) * 1939-11-30 1941-03-21 Nicholas Straussler Improvements in or relating to collapsible bridges
SU1074744A1 (ru) * 1982-11-15 1984-02-23 Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина Транспортное средство дл перевозки и трелевки длинномерных грузов
US4628560A (en) * 1984-02-27 1986-12-16 Fastspan, Inc. Expandable portable bridge structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534913A (en) * 1939-11-30 1941-03-21 Nicholas Straussler Improvements in or relating to collapsible bridges
SU1074744A1 (ru) * 1982-11-15 1984-02-23 Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина Транспортное средство дл перевозки и трелевки длинномерных грузов
US4628560A (en) * 1984-02-27 1986-12-16 Fastspan, Inc. Expandable portable bridge structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005330A (zh) * 2014-01-17 2014-08-27 浙江贝欧复合材料制造有限公司 伸缩浮桥
CN104164833A (zh) * 2014-08-19 2014-11-26 中国人民解放军理工大学 一种伸缩式应急桥梁
CN107229292A (zh) * 2017-06-29 2017-10-03 湖北华舟重工应急装备股份有限公司 一种多传感器的自行舟桥电控系统
CN110080084A (zh) * 2019-06-04 2019-08-02 重庆交通大学 车载式伸缩桁架桥
CN110080084B (zh) * 2019-06-04 2023-10-31 重庆交通大学 车载式伸缩桁架桥
CN110485255A (zh) * 2019-08-12 2019-11-22 三峡大学 一种折叠式应急桥梁及使用方法

Also Published As

Publication number Publication date
HUP0900688A2 (en) 2011-05-30
HU0900688D0 (en) 2009-12-28
WO2011055154A3 (fr) 2011-06-30

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