Pontoon belt bridge

FIELD: construction.

SUBSTANCE: invention relates to transfer-bridge facilities, i.e. to pontoon bridges. A pontoon belt bridge with three traffic lines includes collapsible river and coastal links joined to each other in longitudinal and transverse direction by means of joint units, and the links comprise hingedly connected pontoons equipped with traffic areas built into decks. Height of pontoons of the middle traffic line is 1.4…2 times higher than the height of pontoons of the extreme traffic lines. Width of the traffic part of the middle traffic line is equal to 15.3…16 m, and width of the traffic part of each extreme traffic line is equal to 6.5…7 m.

EFFECT: using proposed technical solution will make it possible to increase load capacity and throughput capacity of a pontoon belt bridge approximately twice due to increase of its longitudinal strength and expansion of traffic parts of extreme traffic lines.

7 dwg

 

The invention relates to crossing-bridge means, and more particularly to a pontoon (floating) bridge.

The famous floating bridge-tape with two lanes of the carriageway (see RF patent №2184809 from 10.07.2002,, CL E01D 15/14), including interconnected in longitudinal and transverse directions by means of the joining nodes folding river and coastal links, consisting of pivotally connected pontoons equipped with built in deck carriageways.

The disadvantages of the known floating bridge-tape are limited capacity and insufficient strength for the passage of heavy loads.

Also known floating bridge-tape with a three-lane roadway (prototype - see Pontoon Park special PPS-84. Book 3. Equipment and maintenance of river crossings. Voenizdat, 1990, S. 31, Fig.2.2), including interconnected in longitudinal and transverse directions by means of the joining nodes folding river and coastal links, consisting of pivotally connected pontoons equipped with built in deck carriageways.

The disadvantages of this floating bridge-tape is a limited capacity, due to insufficient strength of the pontoons when the pass heavy loads, such as mobile missile systems, and extreme narrow lane road is Asti, reducing bandwidth floating bridge-tape.

The claimed invention is directed to solving the problem of expanding the operational capabilities of the floating bridge-tape by increasing its longitudinal strength and increase throughput at the lanes.

The solution of the stated problem is achieved by the floating bridge-the ribbon with three-lane roadway, including interconnected in longitudinal and transverse directions by means of the joining nodes folding river and coastal links, consisting of pivotally connected pontoons equipped with built in deck carriageways, the height of the pontoons middle lane more than 1.4...2 times the height of the pontoons at the lanes, the width of the carriageway middle lane is equal to 15.3...16 m, and the width of the roadway at each lane 6.5...7 PM

The use of the proposed technical solution will allow to increase capacity and throughput floating bridge-tape about 2 times by increasing its longitudinal strength and broadening the roadway middle and far lanes.

The invention is illustrated by drawings, which depict:

in Fig.1 - floating bridge-strip, side view; Fig.2 - floating bridge-the ribbon, a plan, and Fig.3 - section a-a is a of Fig.1; in Fig.4 - node I in Fig.2; Fig.5 - node II in Fig.3; Fig.6 - chetyrehballnoe link in the transport position of Fig.7 - dvukhfotonnoi link in the transport position.

Floating bridge-tape includes folding river units 1, 2 extreme lanes and 3, 4, 5 middle lane. At the end of the bridge-coastal strip posted links 6, 7, 8, 9, 10. Folding river units 1, 2 are made of pivotally United four pontoons, and the links 3, 4, 5 from the hinge of the United of the two pontoons. The height of the pontoons folding river units 3, 4, 5 1.4...2 times the height of the pontoons folding river units 1 and 2. In deck all pontoons built roadways. If the width of the roadway middle lane is equal to 15.3...16 m, and the width of the roadway at each lane 6.5...7 m Folding units are interconnected in the longitudinal direction with joint nodes that are located on the transom of these links, and in the transverse direction with joint nodes that are located on the swivel deflectors 11, 12. All butt sites a similar design and is made in the form of a fork 13 with a movable pin 14 in the guide 15 and lugs 16. Longitudinal movement of the pin in the guide is from the deck of the link using zivotnogo shaft 17. Skew-symmetric location of the plug with pin and lugs on the transom of each link about who has the join link in the longitudinal direction regardless of what boat they are facing each other. In the assembled floating bridge-ribbon roadway middle lane posted above are located on the same level as the roadway at the traffic lanes. At the end of the floating bridge-tape installed onshore units, differing from the river links the V-shape and the presence of joint nodes only on the river transom. Folding the parts are transported by land folded on pontoon hire.

The proposed device operates as follows. Pontoon hire with links serves in the water on the hub of the rear wheels and unload parts. When the links under the action of gravity and torsion automatically disclosed on the water. Further, the links connect to each other in the transverse direction using the butt of the sites hosted on the fairings, while dvukhfotonnye links set in the middle, and chetyrehpostovye links on the edges. Collected from five parts of the parts of the bridge-belt connect among themselves along the shore in the tape with joint sites hosted on the transom of the links. At the ends of the gathered ribbon establish coastal links. Then use the tow boats unwrap the tape across the river in the intended target and fix the floating bridge-tape anchors. The dismantling of the bridge-tape is carried out in the reverse order of its Assembly. For this is on the bridge-tape to sever links put them and load on the pontoon hire.

Floating bridge-tape with a three-lane roadway, including interconnected in longitudinal and transverse directions by means of the joining nodes folding river and coastal links, consisting of pivotally connected pontoons equipped with built in deck carriageways, characterized in that the height of the pontoons middle lane more than 1.4...2 times the height of the pontoons at the lanes, the width of the carriageway middle lane is equal to 15.3...16 m, and the width of the roadway at each lane 6.5 7 PM...



 

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