摘要:
A trough bridge is composed of a plurality of interconnected bridge sections each formed of a roadway deck segment and side wall segments located at opposite sides of the roadway deck segment. An articulation for pivotally attaching the side wall segments to each roadway deck segment includes spaced and aligned first hinge sleeves affixed to the roadway deck segment; a separate first hinge recess defined next to each first hinge sleeve; spaced and aligned second hinge sleeves affixed to the side wall segments; and a separate second hinge recess defined next to each second hinge sleeve. In an assembled state the first hinge sleeves are received in respective second hinge recesses and the second hinge sleeves are received in respective first hinge recesses. The first and second hinge sleeves are in alignment with one another. A hinge pin passes through the first and second hinge sleeves for pivotally joining the side wall segments to the roadway deck segment. There is further provided a locking arrangement for immobilizing the side wall segments in a predetermined pivotal position relative to the roadway deck segment.
摘要:
A foldable modular scissors bridge adapted to be transported by a transport vehicle in a folded-together state and comprising two bridge modules, each formed by one or two pairs of spaced-apart track supports. Run-up ramps disposed at opposite ends of each bridge support are rigidly connected to their bridge supports. A respective ramp end tube, in the form of a hinge part, is disposed at each tip of the run-up ramps. A respective coupling tongue is disposed on each run-up ramp at a distance from the tip thereof. The coupling tongue of the upper bridge module forms an articulated joint with the ramp end tube of the lower bridge module.
摘要:
A deployable modular bridge has a central girder; two side girders flanking the central girder; and couplings connecting each side girder to the central girder along the lower zones of the girders parallel to the bridge length. The couplings are arranged symmetrically with respect to a central vertical longitudinal plane of the bridge and permit displacement of the side girders relative to the central girder parallel to the bridge length. Each coupling includes a rail affixed to the central girder and extending parallel to the bridge length. The rail has a guide track formed thereon. Each coupling further includes a roller mounted on a respective side girder and engaging the guide track.
摘要:
A bridge-laying apparatus has a vehicle adapted to travel in a longitudinal direction and a longitudinally extending laying arm adapted to lay down and pick up bridges formed of at least one bridge section. A rigid link has an upper end pivoted on the laying arm and a lower end pivoted directly on the vehicle and an expansible main cylinder offset horizontally from the link has an upper end pivoted on the arm and a lower end pivoted directly on the vehicle. A pusher cylinder extending nonparallel to the main cylinder has a lower end pivoted on the vehicle and an upper end pivoted on the arm.
摘要:
A deployable bridge is assembled from individual components. The components include cross girders and pavement slabs disposed between the cross girders, the cross girders each having opposite ends and first and second continuous girders each disposed along one of the opposite ends, respectively, of the cross girders. Each continuous girder comprises an upwardly pointing truss having top and bottom chords and truss members arranged between the top and bottom chords and connected to the top and bottom chords at top and bottom nodal points, respectively. The top and bottom chords are each divided in regions of the top and bottom nodal points into a plurality of top chord members and bottom chord members. Each continuous girder further includes connecting elements connecting together the top chord members and connecting together the bottom chord members. The truss members are affixed at a top end to the connecting elements of the top chords and at a bottom end to either the connecting elements of the bottom chords or the ends of the cross girders.
摘要:
A floating bridge includes at least two pontoons adjoining one another in a longitudinal direction of the bridge. Each pontoon includes two outside floats and at least two inside floats hinged together in a transverse direction of the bridge. Each float includes an upper roadway section and at least the inside floats each include a bottom plate having an integrated tension chord. Connecting elements connecting the inside floats of the two adjoining pontoons. The connecting elements are arranged in a region of the tension chords integrated into the bottom plates of the inside floats and respectively connect the tension chords of the two adjoining inside floats. Each connecting element comprises a bolt coupling including a horizontally arranged bolt. The connecting elements are arranged so that a spacing exists in a region of the roadway section between the inside floats of the adjoining pontoons to permit a powerless tilting of the respective adjoining pontoons relative to each other and around the bolts of the connecting elements.
摘要:
The invention relates to a bridge comprising at least one bridge elements. The bridge elements has a base body that has chamfered end surfaces on which roadway plates rest that can be necessarily brought out of a drive-on position into a coupling position by hinged ramp plates in that respectively two bridge elements are moved toward the ramp plates into a drive-on position. The apparatus for laying the bridge has a guide (support rail, holding sheet) for the guide members of the ramp plates so that the bridge elements can be reliably guided together. Moreover, the apparatus has guide rails with which the locking elements (hook, pins) can be centrally actuated.
摘要:
A rollable temporary roadway is composed of individual supporting elements (2) which are articulately connected by hinge-like joints (7), each of which is formed by a bead (5) and the associated recess of a claw (6). The joints (7) are looped by at least one cable (10), with the cable being guided below the joints. A reeling device (20) for rolling up an installed temporary roadway (1) includes a pipe (21), hub members (22) which can be mounted on the pipe, and a cable arrangement (32, 33, 34).
摘要:
A roller carriage for portable bridges or bridge parts have a rocker carrier connected by a support stud to the bridge structure while the rocker bodies are connected to the rocker carrier by pins which are formed in one piece and inseparably with the rocker bodies. A pair of rollers are journaled on each of the rocker bodies.
摘要:
A guide groove provided in an inner lower cord of a bridge section of a portable bridge includes an extruded profile section which is comprised of a vertical strip having an upper end and a lower end, and being composed of, over its entire height in at least a partial cross section thereof, a homogeneous material; and an upper wall section extending from the upper end of the vertical strip and a lower wall section extending from the lower end of the vertical strip. The guide groove has an increased service life when the vertical strip has a thickness in cross section which is reduced at the center portion of the bridge section over at least a part of the length of the bridge section in respect to at least one of the end portions of the bridge section. The guide groove is repairable by a method in which an insertion element is replaced, the insertion element being provided over a part of the length of the bridge section in which the thickness in cross section of the vertical strip is not reduced. The insertion element has an L-shaped profile including a horizontal leg which forms the lower wall section and a vertical leg which forms a part of the vertical strip, which vertical leg can be releasably fastened on the vertical strip, and wherein the vertical strip and the vertical leg of the insertion element have corresponding contact surfaces.