Floating railway bridge

 

(57) Abstract:

The invention relates to the field of bridge construction and in particular to floating bridges used for the transmission of railway rolling stock, wheeled and tracked equipment when the destruction or reconstruction of major bridges over broad and deep water obstacles. The bridge includes pontoons, fastened to each other in longitudinal and transverse directions of the deck and bottom coupling devices, and the rails of the railway track. What's new is that the bridge length made of composite medium pontoons in coastal and transitional parts and forming the tape medium and extreme pontoons links the river side and are supplied in coastal and transitional parts of the intermediate lifting jacks with crossbars. The transom medium pontoons in coastal and transitional parts on both sides and the extreme parts of the river side from the side facing the transitional parts, provided with a hinge coupled over the crossbars intermediate support supporting consoles with the plate having a width corresponding to the total width of the two middle pontoons, deck each middle pontoon is formed a longitudinal niche, the axis of which is separated from the facing to the axis of the path of bawany two longitudinal niches coaxial recesses adjacent in the transverse direction of the middle pontoons. The rails of the railway track are located in the longitudinal recesses of the middle pontoons and a base plate consoles and installed with the possibility of relative lateral movement for change gauge, rail head is placed flush with the deck medium pontoons and the top base plate of the console. The technical result provided by the present invention is to improve the technological and operational characteristics of the bridge, providing the possibility of missing the train, wheeled and tracked vehicles without reconstruction of the roadway while reducing material consumption and simplifying the pairing railroad tracks on the bridge with the ways of the approaches. 3 C.p. f-crystals, 13 ill.

The invention relates to the field of bridge construction and in particular to floating bridges used for the passage of railway vehicles, tracked and wheeled vehicles in the destruction or reconstruction of major bridges over broad and deep water obstacles.

The famous floating bridge, in which the movement of railway transport carried out on the rails, placed at a certain distance from each other, priciple is on the bridge are not included in the structural frame of the pontoons, but only perceive the load from rolling stock and transfer it to the power frame [1]. Thus, the rails are an optional element of the pontoon that complicate its design, which negatively affects the operational characteristics of the bridge (increased precipitation) and creates additional difficulties in transportation pontoon Park vehicles from one place his pickup to another. The perception of the longitudinal force from the traction and braking is done by a special anti-theft devices. Devices to prevent derailment of the wheels of the rolling stock with rails floating bridges are not available. For the passage of rolling stock with a width of 1435 mm requires a special conversion just floating bridge.

The famous floating bridge with unit train travel 1520 and 1435 mm special rolling (welded) guides located flush with the deck of the pontoon and included in the frame [2]. This solution makes it possible to pass over the bridge of wheeled and tracked vehicles without reconstruction of the roadway.

The shortcomings of the structural unit train travel are neophocaena design mates the special profile with track rails on the approaches to the bridge.

The closest technical solution is floating railway bridge, including pontoons, fastened to each other in longitudinal and transverse direction decks and bottom hitch, rails and railway track [3].

The disadvantages of the known technical solutions will lie in the development of special avtoproezd to pass over the bridge of wheeled and tracked vehicles, or in defense of a rail track along the bridge of the special panels, which increases the weight of the bridge and complexity of construction.

The present invention is the creation of a floating railway bridge with improved technological and operational features that provide the ability to skip trains, wheeled and tracked vehicles without reconstruction of the roadway while reducing material consumption and simplifying the pairing railroad tracks on the bridge with the ways of approaches.

This is achieved by floating the railway bridge includes pontoons, fastened to each other in longitudinal and transverse directions of the deck and bottom coupling devices, and the rails of the railway track, the bridge length is made approximately the Nievo river side and are supplied in coastal and transitional parts of the intermediate lifting jacks with bolts the transom medium pontoons in coastal and transitional parts on both sides and the extreme parts of the river side from the side facing the transitional parts, provided with a hinge coupled over the crossbars intermediate support supporting consoles with the plate having a width corresponding to the total width of the two middle pontoons, deck each middle pontoon is formed a longitudinal niche, the axis of which is separated from the converted to the track axis side of the pontoon, the value of S, the component of 0.28 - 0,38 width of the middle of the pontoon, as in the plate of each control console formed by two longitudinal niches coaxial recesses adjacent in the transverse direction of the middle pontoons, and the rails of the railway track are niches in the longitudinal middle of the pontoons and the bearing plate consoles and installed with the possibility of relative lateral movement for change gauge, rail head is placed flush with the deck medium pontoons and the top base plate of the console. Average and extreme pontoons links the river side in the transverse direction are connected between the deck and bottom coupling devices, and in the longitudinal direction of the links between them can be connected to the bottom coupling devices medium Pont and on the transom medium pontoons river bridge, allied with the transitional parts, by means of longitudinal deck and bottom coupling devices. Links the river side of the bridge may consist of a pair of average number of pontoons, but not less than two, and two outer pontoons, and coastal and transitional part of the bridge - from the middle of the pontoons, which number corresponds to the number of secondary pontoons link river part.

In Fig. 1 shows a General view of single-track motorized railway bridge; Fig. 2 - cross section a-a in the coastal part of the single-track motorized railway bridge; Fig. 3 - cross section b-B on the river part of the single-track motorized railway bridge; Fig. 4 is a General view of the middle of the pontoon of Fig. 5 - node mounting rail in a recess of the middle deck of the pontoon of Fig. 6 - junction spans coastal and transitional parts, facade, Fig. 7 is a plan; Fig. 8 is a General view of the support console from the side; Fig. 9 is a General view at the pontoon in the transport position of Fig. 10 is the same in working position; Fig. 11 is a General view of the double floating railway bridge; Fig. 12 is a cross section a-a in the coastal part of the two-lane floating railway bridge; Fig. 13 is a cross-section b-B on the river side toev 1, spans coastal and transitional parts 2, lifting jacks 3 and river (floating) part consisting of forming a ribbon of river links 4.

The superstructure of the coastal and transitional parts 2 single-track motorized railway bridge consist of two medium 5 pontoons interconnected in the transverse direction through dnasei 6 and deck (not shown) coupling devices.

Each river link 4 consists of two medium 5 and the two extreme 7 pontoons interconnected by means of transverse deck (not shown) and the bottom 8 of the coupling device. In the longitudinal direction of the river units 4 are interconnected longitudinal bottom coupling devices 9 medium pontoons 5. River of polozeno is respectively from one medium 5 and one at 7 pontoons.

The bolt 10 lifting jacks 3 is made with possibility of vertical movement by an appropriate drive, such as troublesho.

Average pontoons 5 spans coastal and transitional parts 2 and end links 4 river side from the side facing the transitional parts 2, equipped with a swivel fitting over the crossbars 10 lifting legs 3 support consoles 11 with Plato the s through the longitudinal deck 13 and the bottom 9 of the coupling device. The plate 12 has a width corresponding to the total width of the two middle pontoons 5.

In the deck of each of the middle pontoon 5 formed longitudinal niche 14, the axis of which is separated from the converted to the track axis side of the pontoon on the value of the S component of 0.28-0,38 width of the middle pontoon 5, and the plate 12 of each of the supporting consoles 11 is made of two longitudinal niches 15, coaxial with the recesses 14 adjacent in the transverse direction of the middle pontoons 5. In each of the longitudinal NIS 14 and 15 installed rails 16 of the railway track with the possibility of relative transverse movement to change the width of railway tracks. The rail head 16 is placed flush with the deck medium pontoons 5 and the top plate 12 supporting the console 11.

The rail 16 mounted on welded to the base of NIS 14, 15 pads 17 with limiting stops 18, the locking design position of the sole rail 16 for the width of 1520 or 1435 mm Terminals to secure the rail 16, the use of two types - short 19 and 20 long, with mutual permutation which accordingly changes the width of the gauge.

Each extreme pontoon 8 from the outer side provided with a foldable sectional vodonasosnaya Radome 21 and anchor winch 22, rigidly clamping the actuator, for example, manually, from the deck of the pontoon.

Option two-lane floating railway bridge (Fig. 11, 12, 13). In double floating rail bridges coastal and transitional part 2 going from two pairs of medium-sized pontoons 5, United transverse deck (not shown) and the bottom coupling devices 6, with two pairs of supporting consoles 11 at the ends of each span of the coastal and transitional parts 2. Each link river part 4 is assembled from four medium 5 and the two extreme 4 pontoons.

The floating tip railway bridge is as follows.

Medium 5 and at 7 pontoons, lifting elements of the supports 3, the support console 11 vehicles, such as cars, are delivered to the place of Assembly of the bridge, equipped with piers to perform installation work on the water. After unloading from vehicles using lifting equipment, such as truck crane, at the mounting site, located on the shore, assemble lifting jacks 3. Collected lifting support 3 is fixed to the pontoon and delivered to the installation site. Then lifting the supports 3 is set in the design position.

To build prometni NIS 14, through the transverse deck (not shown) and the bottom coupling device 6, thus forming the rail gauge is the width you want. Then they towed through the water to the pier where the boat medium pontoons 5 is attached by means of longitudinal deck 13 and the bottom 9 of the coupling devices support console 11.

Collected spans coastal and transitional parts 2 tow on the water line of the bridge and set in the project position with an appropriate fastening the supporting consoles 11 on the crossbars 10 lifting jacks 3.

To build river units 4 first collect polozenie. Each Polokwane connect at the pontoon 7 medium 5 pontoon by means of transverse deck (not shown) and the bottom 8 of the coupling device. Each of the fairings 21 complex on the deck at each of the pontoon 7, occupying the corresponding position in the transport position. The collected polozenie unite transverse bottom coupling devices 6 and tighten between the ropes anchor winches 22 to match the transverse deck (not shown) coupling devices in the circuit which is formed of a river link 4. The transom medium pontoons 5 leaf river units 4, adjacent to the transitional castolite buildings coastal parts 2. River links 4 luxirous on the water line of the bridge and joined together lengthwise of the bottom 9 of the coupling devices in the "tape" with the formation of a continuous rail track. River units 4 are fixed anchor winch 22 from demolition by wind and water flow. Folding sectional vodonasosnaya fairings 21 are moved from the transport position into the working position, river units 4 are mounted in the axis of the axle by pulling the ropes anchor winches 22, and the level of travel in coastal bridge is adjusted accordingly by raising or lowering the beams 10 of lifting jacks 3 depending on the water level in the watercourse.

Changing the width of the rail gauge is possible as previously, on a separate medium-sized pontoons 5, and in General, after setting the floating rail bridge by mutual permutation 19 short and long 20 terminals to secure the rail 16 to the base longitudinal NIS 14 and 15.

Sequence Assembly and pickup double floating railway bridge is the same as the single-track.

The proposed floating railway bridge allows reconstruction of the roadway to provide passage through it of railway rolling stock, wheels and guanrong path on the bridge with the ways of approaches.

The ability to create two-lane floating railway bridges can increase the capacity and throughput of the double track railway stations and highways.

Sources of information taken into account

1. Telow Century. And. and Kanukov I. M. "Pontoon bridges, ferry and ice crossings" - M.: Transport, 1978, 64, Fig. 30V.

2. USSR author's certificate N 1694769, MKI E 01 D 15/14, 1991.

3. USSR author's certificate N 628212, MKI E 01 D 15/14, 1978 (prototype).

1. Floating railway bridge, including pontoons, fastened to each other in longitudinal and transverse directions of the deck and bottom coupling devices, and the rails of the railway track, characterized in that the bridge length made of composite medium pontoons in coastal and transitional parts and forming the tape medium and extreme pontoons links the river side and are supplied in coastal and transitional parts of the intermediate lifting jacks with bolts and transom medium pontoons in coastal and transitional parts on both sides and the extreme parts of the river side from the side facing the transitional parts, equipped with swivel paired over the crossbars intermediate supports op the deck of each of the middle pontoon is formed a longitudinal niche axis of which is separated from the converted to the track axis side of the pontoon on the value of the S component of 0.28 - 0,38 width of the middle of the pontoon, as in the plate of each control console formed by two longitudinal niches, coaxially with the niches adjacent in the transverse direction of the middle pontoons, with the rails of the railway track are located in the longitudinal recesses of the middle pontoons and a base plate consoles and installed with the possibility of relative lateral movement for change gauge and rail head is placed flush with the deck medium pontoons and the top base plate of the console.

2. Floating railway bridge under item 1, characterized in that the average and extreme pontoons links the river side in the transverse direction are connected between the deck and bottom coupling devices, and in the longitudinal direction of links interconnected bottom hitch medium pontoons.

3. Floating railway bridge under item 1 or 2, characterized in that each supporting a console mounted on the transom of the two middle pontoons coastal and transitional parts of the bridge and on the transom medium pontoons on the river ends of the bridge, adjacent to the transitional parts, by means of longitudinal deck and denisew the disappearing river side of the bridge consists of a pair of the average number of pontoons, but at least two, and two outer pontoons, and coastal and transitional part of the bridge - from the middle of the pontoons, which number corresponds to the number of secondary pontoons link river part.

 

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