RU2534133C2 - Pontoon belt bridge - Google Patents

Abstract

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.

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Description

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

A floating bridge-tape with two lanes of the roadway is known (see RF patent No. 2184809 of July 10, 2002, according to class E01D 15/14), including folding river and coastal interconnected in the longitudinal and transverse directions by means of butt joints links consisting of articulated pontoons equipped with carriageways integrated in decks.

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

Also known is a floating bridge-ribbon with three lanes of carriageway (prototype - see Pontoon Park special PPS-84. Book 3. Equipment and maintenance of crossings. Military Publishing House, 1990, p.31, Fig.2.2), including interconnected longitudinal and transverse directions by means of butt joints folding river and coastal links, consisting of articulated pontoons, equipped with carriageways built into decks.

The disadvantages of this floating bridge bridge are the limited carrying capacity due to the insufficient strength of the pontoons when passing heavy loads, such as mobile missile systems, and the narrow extreme lanes of the carriageway, which reduce the throughput of the floating bridge bridge.

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

The solution to this problem is achieved by the fact that in a floating bridge-bridge with three traffic lanes of the carriageway, including folding river and shore links connected to each other in the longitudinal and transverse directions by means of butt joints, consisting of articulated pontoons equipped with carriageways integrated in the decks, the height of the pontoons of the middle lane is 1.4 ... 2 times the height of the pontoons of the extreme lanes, while the width of the carriageway of the middle lane is 15.3 ... 16 m, and the width of the carriageway is the last extreme lane is 6.5 ... 7 m.

Using the proposed technical solution will increase the carrying capacity and throughput of the floating bridge-tape by about 2 times due to an increase in its longitudinal strength and broadening of the carriageways of the middle and extreme lanes.

The invention is illustrated by drawings, which depict:

figure 1 - floating bridge-tape, side view; figure 2 - floating bridge-tape, plan; figure 3 is a section aa in figure 1; figure 4 - node I in figure 2; figure 5 - node II in figure 3; figure 6 - four-pont link in the transport position; figure 7 - two-pont link in the transport position.

The floating bridge-ribbon includes folding river links 1, 2 of the extreme lanes and 3, 4, 5 of the middle lane. The coastal links 6, 7, 8, 9, 10 are located at the ends of the ribbon bridge. The folding river links 1, 2 are made of four pontoons pivotally connected, and the links 3, 4, 5 are made of two pontoons pivotally connected. The height of the pontoons of the folding river links 3, 4, 5 is 1.4 ... 2 times the height of the pontoons of the folding river links 1 and 2. The carriageways are built into the decks of all pontoons. Moreover, the width of the carriageway of the middle lane is 15.3 ... 16 m, and the width of the carriageway of each extreme lane is 6.5 ... 7 m. Folding links are interconnected in the longitudinal direction using butt joints located on the transoms of these links and in the transverse direction - with the help of butt assemblies located on the rotary cowls 11, 12. All butt assemblies are similar in design and are made in the form of a plug 13 with a movable pin 14 in the guide 15 and the eye 16. The longitudinal movement of the pin in the guide from the deck of the link using the pin shaft 17. The skew-symmetric arrangement of the plug with the pin and the eyes on the transoms of each link ensures that the links are joined in the longitudinal direction, regardless of which transoms they are facing each other. In the assembled floating bridge-tape, the carriageway of the middle lane is located above the carriageways of the extreme lanes located at the same level. Coastal links are installed at the ends of the floating bridge-ribbon, which differ from the river links in a wedge-shaped shape and the presence of butt joints only on the river transom. Folding links are transported by land in folded form on pontoon cars.

The proposed device operates as follows. Pontoon cars with links feed into the water through the hub of the rear wheels and unload the links. In this case, the links under the influence of gravity and torsion are automatically opened on the water. Further, the links are connected to each other in the transverse direction with the help of butt assemblies located on the fairings, while the two-pont links are installed in the middle, and the four-pont links are installed at the edges. The sections of the bridge-tape assembled from five links are connected together along the coast into a tape by means of butt assemblies located on the transoms of the links. At the ends of the assembled tape establish coastal links. Then, with the help of towing boats, they deploy the tape across the river to the intended target and fix the floating bridge-tape with anchors. Dismantling of the bridge-tape is carried out in the reverse order of its assembly. To do this, the bridge-tape is separated into links, stacked and loaded onto pontoon cars.

Claims (1)

A floating bridge bridge with three lanes of the carriageway, including folding river and coastal links interconnected in the longitudinal and transverse directions by means of butt assemblies, consisting of articulated pontoons equipped with carriageways integrated in the decks, characterized in that the height of the pontoons of the middle lane the traffic is 1.4 ... 2 times higher than the pontoons of the extreme lanes, while the width of the carriageway of the middle lane is 15.3 ... 16 m, and the width of the carriageway of each extreme lane equal to 6.5 ... 7 m.

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