RU2745580C1 - METHOD FOR COMPENSATING FOR TEMPERATURE CHANGES IN THE LENGTH OF THE NzHm-56 FLOATING RAILWAY BRIDGE DURING THE WITHDRAWAL AND INPUT OF THE OUTLET FERRY DURING THE PASSING THROUGH OF SHIPS - Google Patents

Abstract

FIELD: bridge construction.

SUBSTANCE: invention can be used in the design, manufacture, guidance and operation of floating railway bridges. A method is proposed for compensating for temperature changes in the length of an NZhM-56 floating railway bridge during the withdrawal and input of an outlet ferry during ships passage, characterized by the replacement of one of the fixed coastal parts of the bridge with a movable coastal part, which pulls the shore the adjacent transition and river parts when the bridge is pulled apart, and when the bridge is converged it serves the adjacent transitional and river parts to the outlet ferry standing in the bridge line, followed by fixing the moving coastal part in a fixed position before the trains pass, and consisting of a coastal superstructure resting on a frame lifting support and connected to it by a traction frame a support cushion, movably mounted on metal guides and strips, fixed on the pile and bed foundations with stops and providing longitudinal displacement and fixing by clamps of the frame lifting support and the support cushion, from a hydraulic drive standing on a separate foundation and forcibly changing the position of the movable coastal part and the transitional and river parts attached to it, from a set of removable adjusting superstructures with several standard sizes along the length, designed to connect the railway track on the coastal superstructure and the abutment and selected for installation in the span, depending on the temperature gap between the coastal superstructure and abutment.

EFFECT: improved operational characteristics of the floating railway bridge.

1 cl, 11 dwg

Description

The claimed invention relates to the field of military bridge construction and can be used in the design, manufacture, guidance and operation of floating railway bridges from inventory.

The problem to be solved by the claimed invention is to expand the scope of inventory floating railway bridges due to wide rivers and reservoirs, where the use of several bridge sets is required, as well as in areas with large differences in air temperature during the day. Changing the length of the river sections adjacent to the outlet ferry is currently performed by numerous tension joints manually by a large number of pontoons simultaneously along the entire length of the floating bridge. The complexity of the work and the time of their implementation are unreasonably large, especially on long bridges from several sets of NZhM-56. In hot weather, due to the significant lengthening of the bridge with fixed coastal parts, or rather their supports, both opening and closing of the bridge are possible only at night, when the heat subsides and the length of the bridge decreases to the required size. This circumstance sharply reduces the number of ships passing through the bridge section.

The problem is solved by changing the design of one of the coastal parts of the NZHM-56 floating railway bridge and supplementing its main function (conjugation of the river part of the bridge on floating supports (pontoons) through the transitional part with a railway approach on the coast) with a mobility function that provides pulling up to the coast, in the necessary the limits of the transitional and river parts adjacent to it, with the provision of the possibility of breeding and the subsequent introduction of the navigable span of the bridge. When the bridge is brought together after the passage of ships by entering the outlet ferry and connecting it with the river part from the side of the fixed coastal part, the moving coastal part feeds the adjacent transitional and river parts to the outlet ferry for connection with it. The railway track of the moving coastal part is connected to the railway track on the abutment by means of a removable adjusting superstructure. To ensure (fix) changing temperature gaps during the period of operation of the bridge, the set of the movable coastal part has several standard sizes of removable adjusting superstructures along the length. After entering the lead-out ferry into the bridge line and adjusting the tension joints, the frame lifting support and the support pad from the longitudinal movement are fixed to the metal guides. For the purpose of simultaneous movement along the metal guides of the frame support and the support cushion, they are interconnected by a traction frame. The traction frame moves in the longitudinal direction using a hydraulic drive installed on a pile foundation. The hydraulic cylinder of the movement mechanism is fixed to the pile foundation of the hydraulic drive.

The essence of the invention is illustrated in figures 1-11.

Figure 1 schematically shows a floating railway bridge NZhM-56 with its structural elements in the process of passing trains:

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 8 - tension joint of the superstructure in a closed state;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam.

Figure 2 schematically shows the NZHM-56 floating railway bridge at the first stage of breeding for the passage of ships (disconnecting the tension joint of the outlet ferry with the moving river part, removing the removable adjusting superstructure between the moving coastal part and the abutment, opening (removing) the latches of the frame lifting support and support cushion):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 8 - tension joint of the superstructure in a closed state;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15 - tension joint of the superstructure in the open state;

pos. 16 - pusher boat;

pos. 17 - lock of the frame lifting support (support cushion) in the open state.

Figure 3 schematically shows the NZHM-56 floating railway bridge at the second stage of breeding for the passage of ships (pulling the moving coastal part to the coast of the transitional and river parts attached to it, disconnecting the tension joint of the outlet ferry with a fixed river part):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15-tension joint of the superstructure in the open state;

pos. 16 - pusher boat;

pos. 17 - lock of the frame lifting support (support cushion) in the open state.

Figure 4 schematically shows the NZHM-56 floating railway bridge at the third stage of breeding for the passage of ships (removing the outlet ferry from the drawbridge of the floating railway bridge):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15 - tension joint of the superstructure in the open state;

pos. 16 - pusher boat;

pos. 17 - lock of the frame lifting support (support cushion) in the open state.

pos. 17 - lock of the frame lifting support (support cushion) in the open state.

Figure 5 schematically shows the NZHM-56 floating railway bridge during the passage of ships:

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15-tension joint of the superstructure in the open state;

pos. 16 - pusher boat;

pos. 17 - latch of the frame lifting support (support cushion) in the open state;

pos. 18 - securing the outlet ferry to the coastal anchor.

Figure 6 schematically shows the NZHM-56 floating railway bridge at the first stage of preparation for the passage of trains after disengagement (entering the exit ferry into the bridge line):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15 - tension joint of the superstructure in the open state;

pos. 16 - pusher boat;

pos. 17 - lock of the frame lifting support (support cushion) in the open state.

Figure 7 schematically shows a floating railway bridge NZHM-56 at the second stage of preparation for the passage of trains after its separation (connection of the tension joint of the outlet ferry with a fixed river part, extension from the coast to the outlet ferry by the moving coastal part of the transitional and river parts connected to it, closing (installation) of the frame lifting support and support cushion):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 8 - tension joint of the superstructure in a closed state;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 15 - tension joint of the superstructure in the open state;

pos. 16 - pusher boat.

Figure 8 schematically shows the NZHM-56 floating railway bridge at the third stage of preparation for the passage of trains after its separation (connection of the tension joint of the outlet ferry with the movable coastal part, length selection and installation of an adjusting superstructure between the movable coastal part and the abutment):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 3 - fixed coastal part of the floating bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 6 - removable control span. The superstructure is selected in length (standard size) depending on the width of the temperature gap formed at the time of installation;

pos. 7 - hinge joint of the superstructure;

pos. 8 - tension joint of the superstructure in a closed state;

pos. 9 - fixed transitional part of the floating bridge;

pos. 10 - stationary river part of the floating bridge;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 13 - the direction of the river flow;

pos. 14 - outlet steam;

pos. 16 - pusher boat.

Figure 9 shows a side view of the junction of the movable river and transitional parts of the NZHM-56 floating railway bridge and the coastal part of the bridge with a drive for its movement:

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 19 - frame lifting support (moves along the axis of the bridge along metal guides);

pos. 20 - support cushion (moves along the axis of the bridge along metal guides);

pos. 21 - metal guide for moving and fixing the frame lifting support and support cushion along the axis of the bridge and prohibiting their movements across the axis of the bridge;

pos. 22 - pile foundation of a frame lifting support;

pos. 23 - bed basement of the support cushion;

pos. 24 - traction frame for combining into one structure and simultaneous movement of the frame lifting support and support cushion;

pos. 25 - hydraulic cylinder of the traction frame drive;

pos. 26 - hydraulic drive pumping station; pos. 27 - pile base of the hydraulic drive;

pos. 28 - amplitude of movements of the frame lifting support and the support cushion;

pos. 29 - anchor pile for securing the base of the support cushion against displacement along the axis of the bridge;

pos. 30 - anchor pile for securing the base of the support cushion against movements across the axis of the bridge;

pos. 31 - stop for fixing the position of the metal guide in the longitudinal and transverse directions.

Figure 10 shows a top view of the junction of the movable river and transitional parts of the NZHM-56 floating railway bridge and the coastal part of the bridge with a drive for its movement:

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 4 - movable coastal part of the floating bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 6 - removable control span;

pos. 7 - hinge joint of the superstructure;

pos. 11 - movable transitional part of the floating bridge;

pos. 12 - movable river part of the floating bridge;

pos. 19 - frame lifting support (moves along the axis of the bridge along metal guides);

pos. 20 - support cushion (moves along the axis of the bridge along metal guides);

pos. 21 - metal guide for moving and fixing the frame lifting support and support cushion along the axis of the bridge and prohibiting their movements across the axis of the bridge;

pos. 22 - pile foundation of a frame lifting support;

pos. 23 - bed basement of the support cushion;

pos. 24 - traction frame for combining into one structure and simultaneous movement of the frame lifting support and support cushion;

pos. 26 - hydraulic drive pumping station;

pos. 27 - pile base of the hydraulic drive;

pos. 28 - amplitude of movements of the frame lifting support and the support cushion;

pos. 29 - anchor pile for securing the base of the support cushion against displacement along the axis of the bridge;

pos. 30 - anchor pile for securing the base of the support cushion against movements across the axis of the bridge;

pos. 31 - stop for fixing the position of the metal guide in the longitudinal and transverse directions.

Figure 11 shows a top view of the movable block of supports of the coastal part of the NZHM-56 floating railway bridge with a traction frame and a hydraulic drive (the coastal superstructure and the removable control superstructure are not shown):

pos. 1 - approach embankment with a railway track;

pos. 2 - abutment of the bridge;

pos. 5 - lock of the frame lifting support (support cushion) in the closed state;

pos. 7 - hinge joint of the superstructure;

pos. 11 - movable transitional part of the floating bridge;

pos. 19 - frame lifting support (moves along the axis of the bridge along metal guides);

pos. 20 - support cushion (moves along the axis of the bridge along metal guides);

pos. 21 - metal guide for moving and fixing the frame lifting support and support cushion along the axis of the bridge and prohibiting their movements across the axis of the bridge;

pos. 22 - pile foundation of a frame lifting support;

pos. 23 - bed basement of the support cushion;

pos. 25 - hydraulic cylinder of the traction frame drive;

pos. 26 - hydraulic drive pumping station;

pos. 27 - pile base of the hydraulic drive;

pos. 29 - anchor pile for securing the base of the support cushion against displacement along the axis of the bridge;

pos. 30 - anchor pile for securing the base of the support cushion against movements across the axis of the bridge;

pos. 31 - stop for fixing the position of the metal guide in the longitudinal and transverse directions;

pos. 32 - fastening the traction frame to the frame lifting support and the support cushion;

pos. 33 - longitudinal rod for connecting the lifting frame support and the support cushion;

pos. 34 - transverse rod for combining longitudinal rods in the design of the traction frame and fastening the hydraulic cylinder of the traction frame drive;

pos. 35 - metal strip for moving the support pad along the axis of the bridge.

Literature

1. Floating railway bridge NZHM-56. Technical description and instructions for installation, transportation, storage and operation. - M .: Military Publishing, 1977.

2. Efimkin S.V., Voitovich P.V., Doronin A.V. etc. Floating unified railway bridge-belt MLZH-VF-VT. Technical description and instructions for installation, transportation, storage and operation. - M .: Ministry of Defense of the Russian Federation, ZhDV, 2013.

3. Telov V.I., Kanukov I.M. Floating bridges, ferry and ice crossings. - M .: Transport, 1978.

Claims (1)

A method for compensating for temperature changes in the length of a floating railway bridge NZhM-56 during the withdrawal and input of an outlet ferry when passing ships, characterized by the replacement of one of the fixed coastal parts of the bridge with a movable coastal part, when the bridge is pulled up to the coast, the adjacent transitional and river parts, and reduction of the bridge supplying the adjoining transitional and river parts to the outlet ferry standing in the line of the bridge, followed by fixing the moving coastal part in a stationary position before the trains pass, and consisting of a coastal superstructure resting on a frame lifting support and a support frame connected to it by a traction frame cushion, movably mounted on metal guides and strips, fixed on the pile and bed foundations with stops and providing longitudinal displacement and fixing with clamps of the frame lifting support and the support cushion, from a hydraulic drive standing on a separate foundation and forcibly changing position e of the moving coastal part and the transitional and river parts attached to it, from a set of removable adjusting superstructures with several standard sizes along the length, designed to connect the railway track on the coastal superstructure and the abutment and selected for installation in the span, depending on the temperature gap between the coastal span structure and abutment.

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