Device for longitudinal launching of bridge spans. RU patent 2514312.
 Method of telescopic longitudinal sliding of bridge superstructure / 2450100Method of longitudinal sliding of bridge superstructure includes three stages. At first stage superstructure at one of banks is assembled as continuous structure and installed at bogies. At that inner beam is divided into two parts. The first part of inner beam is used as sliding girder. The second part is used as rear counterbalance and is loaded with ballast. The first part of inner beam is assembled along direction of outer beam sliding while the other part is assembled behind outer behind both parts of inner beam are driven into outer beam to a certain length and fixed by respective fasteners. At second stage superstructure is transported by means of pushers to the installation site and slided. At third stage outer beam is anchored; ballast and fasteners are removed; parts of inner beam are slided into outer one and then superstructure is installed downwards by means of jacks into final position. |
 Pushing device to launch bridge spans / 2421565Pushing device to launch spans includes a support beam, skids, a sliding track fixed on the bridge support at the support rigging, lifting hydraulic jacks and power pushing hydraulic cylinders, and also shifting tables with lifting hydraulic jacks. To transfer a pushing force from a power hydraulic cylinder to a support beam, ends of skids are arranged in the form of a cantilever ledge with a segment support board, the cylindrical surface of which contacts with the cantilever support of the support beam. |
 Heavy load transfer device / 2406684Device is used for mounting bridge decking 1 that makes transferred heavy load and comprises drive units 3 arranged on bridge pillars, each drive comprising stationary bed 10 and intercoupled 1st and 2nd moving elements. Said elements comprise mounting wedge 18 and link 21. Mounting wedge 18 and link 21 are driven by jack to perform alternating cyclic motions wherein link 21 ups to pull up bridge decking 1 arranged on base 10. Then said link 21 translates, along with said decking relative to said bed and, finally, places bridge decking on the base. |
 Method for incremental launching of bridge span / 2390601Method relates to the field of bridge engineering and may be used to cover navigable span of recovered bridge. Method for incremental launching of bridge span includes assembly of span on embankment of approach zones, assembly of launching nose, installation of traction braking and lifting devices, and also its launching. The novelty is the fact that in process of incremental launching of single span by proposed method, length of launching nose makes 0.25-0.5 of span length. Launching of span includes two stages. At the first stage main beams of span are combined into continuous system, by means of partial launching of inner beam into outer one and closing by temporary fixing devices, where inner beam during launching serves as counter-weight. With the help of traction devices span is launched into bay. At the second stage launching nose is disassembled, continuous system is brought to split one, by means of complete insertion of the main inner beam into outer one with the help of traction devices, besides outer beam is anchored and simultaneously serves as knurling scaffolds for the inner one. Anchor fixtures are dismantled, and the structure is lowered onto supports into design position. |
 Method of bridge span assembly / 2385982In method of bridge span assembly, including assembly of bridge span mount unit, comprising traffic area boards, main trusses and cross inks, arrangement of bridge span mount unit in initial lower position so that at least one of stands of bridge permanent support is arranged between main trusses of mount unit, lifting of mount unit to a design elevation by means of a weight-lifting device, transverse motion of bridge span mount unit till longitudinal axis of mount unit matches longitudinal axis of bridge, installation of bridge span mount unit onto permanent supports, in process of bridge span mount unit assembly end sections of main trusses are left as unoccupied with traffic area boards and cross links by length that provides for arrangement of permanent supports stands in available free space between main trusses, and as mount unit is installed in initial lower position, parallel position of mount unit axis and longitudinal bridge axis is provided with a permissible deviation from such position by value of up to 3°, as well as arrangement of axes passing through support platforms of the main trusses of bridge span mount unit and support platforms of permanent supports, in a single vertical plane, besides missing units of traffic area and cross links are mounted on completion of bridge span mount unit installation onto permanent supports into design position. Application of stated technical solution makes it possible to obtain considerable economic effect and to reduce time of construction. At the same time proposed technology provides for safe performance of mounting works. |
 Device for string-and-roller beam protrusion / 2315147Device comprises piers and two parallel load-bearing strings stretched between the piers so that the strings are directed along axis of design position of each beam to be protruded into bridge span for accurate beam installation on support parts without beam displacement in transversal direction. Device also has support and suspended trolleys. Beam may be hanged to suspended trolley comprising electric drive for trolley movement along strings. Piers have string height control mechanisms, which change string heights over bridge piers. Suspended trolley may have mechanism, which puts front beam end on support parts. |
 Device for longitudinal bridge span structure protrusion / 2313629Device comprises pushing and braking means, pylon with guy lines fastened to span structure by the first ends thereof, and with flexible ties passing over rollers. The rollers are arranged on head of support, which is the first in span structure protrusion direction and is provided with haulage means. Receiving cantilever is arranged in lower part of the same support. Pylon has shoes arranged in lower part thereof. Guy lines and flexible ties are made as control and haulage block and tackle systems correspondingly. The block and tackle systems have lower blocks secured to pylon shoes by means of hinged clips. Upper blocks of control block and tackle system are secured to span structure bottom. Free cable ends of said block and tackle system are connected to winch installed on span structure. Free ends of cables included in haulage block and tackle system pass through support head rollers and are connected with haulage means made as winch with weight. Pylon is of telescopic type and consists of main and sliding members provided with coaxial orifices and fixers inserted in the orifices. Inclinometer is arranged in area of hinged pylon connection with span structure. Hinged clips are provided with sensors, which determine force in cables of control and haulage block and tackle systems. Device comprises means for span structure end flexure determination and deviation in plane view. Said means is made as target connected to span structure end and sighting device aimed on the target. The sighting device is installed on head of support, which is the first in span structure protrusion direction, and is coaxial to longitudinal bridge axis. |
 Span structure assemblage method and hoisting device for above method realization / 2301294Method involves ashore assembling span structure on building slipway; advancing thereof to assemblage site by means of floating supports; lifting span structure with the use of hoisting device and installing thereof on permanent piers. Span structure is assembled as subassembly with main trusses without cantilevered roadway panel mounting on extreme panels. Floating supports are moved so that one permanent pier is between main trusses of span structure subassembly and subassembly center of gravity is in line between permanent pier axes. Then hoisting devices are installed on permanent piers of the bridge and after subassembly lifting to design mark subassembly hanged under hoisting device is moved in transversal direction up to longitudinal subassembly axis alignment with that of the bridge. Hoisting device comprises load-bearing frame, lifting hydraulic cylinders, catching means, suspension means and traverse fastened to bridge span subassembly. Transversal cantilevered beams are fixedly secured to permanent pier head. Load-bearing frame freely rests upon cantilevered beams. The cantilevered beams are provided with means for load-bearing frame movement in transversal direction. Cantilevered beams may be provided with beam trussing system located in lower parts thereof. |
 Device for bridge span structure protrusion / 2297491Device comprises building berth for bridge span structure sections assemblage, pushing means, fixed protruding means and side movement limiting means cooperating with lower sheet of main span structure beams. Main beam defining radius curve in plane is supported by fixed protruding means. Movable protruding means, which may be displaced in transversal direction, are installed on bridge piers in area of another main beam supporting, wherein the main beam has curvilinear section defined in plane, which differs from above radius curve. The movable protruding means are made as transversal bearing beams with guiding means adapted to receive movable support section bearing ball support section. The ball support section carries sleeve bearing cooperating with lower sheet of main beam. The sleeve bearing is made as tangential support section resting upon ball support section and having upper balancer. Connected to upper balancer is frame having longitudinal beams made as balancing beams. Transversal beams of the frame are provided with side thrusts formed on cantilever parts thereof to cooperate with lower sheet of main span structure beam. |
 Device for bridge span structure protrusion / 2297490Span structure protrusion device comprises support with leveling member provided with antifriction surface, load-bearing with friction and antifriction surfaces and reciprocating cylinders connected to the support. Span structure protrusion device also has additional bearing members. The support has window. The bearing members are provided with thrust members, which periodically cooperate with reciprocating cylinders and connected with each other by means of hinges so that closed loop is formed. The closed loop is arranged in antifriction surface of the leveling member and in support window. Device has additional cylinders pivotally connected to support. The bearing members are provided with additional thrust members arranged in staggered order below main cylinders. Friction surface has convexities formed on bearing members. The convexities may have pyramidal shapes. The leveling member is made as spherical support. |
 Method for assembling over-pier part of bridge span structure / 2247805Method involves mounting blocks formed as reinforced concrete flooring panels by moving thereof in horizontal direction with the use of pushing means across bridge span, wherein before panels installation on support span parts panel is laid on sleds with the use of load-lifting means, sleds are installed on track, guiding tracks are placed on sleeper grid consisting of wooden studs and two transversal members, rollers are arranged between sleeper grids; installing supplementary columns and four jack posts in addition to main supports. Flooring panel movement is performed with the use of pushing means which displaces sleds up to span to be overlapped. After that flooring panel is lifted by means of jack posts, sleds are removed and displaced into their initial position. Then track is rolled, flooring panel is lowered on bridge piers with the use of hydraulic cylinders of jack posts; free jack posts are dismounted and mounted in the next bridge span simultaneously with supplementary columns installation. Track is placed on previously installed flooring panel with sleds on which next flooring panel is laid. All above operations are repeated. |
| Construction method for bridge or overpass / 2251604 Method involves erecting piers; building at least one longitudinally solid span structure of reinforced concrete beams forming at least one branch in transversal cross-section. The beams are created in sections on jig of cast-in-place or composite reinforced concrete by means of concreting thereof in knock-down forms. The beams are reinforced with non-prestressed and prestressed reinforcement and beam sections are moved repeatedly in linear direction to design position with the use of launching nose. Prestressed reinforcement is arranged in bundles in closed channels. Each bundle is formed of wires and/or rods and/or bands of high-strength material, particularly of metal and/or metal-filled plastic or of high-strength carbonic or polymeric threads. Some channels are linear, another ones are curvilinear or polygonal and include convex and concave areas located mainly in vertical section. Convex and concave areas correspond or are proportional to bending moment profile. Working reinforcement arranged in linear channels is prestressed within each section before its displacement from jig. Reinforcement located in curvilinear or polygonal channels is pulled or drawn into channels after span structure or span structure branch movement in design position. Above reinforcement is prestressed after moving all sections forming span structure or part or branch thereof in design position. Ratio between cross-section areas and/or load-bearing capacity values of reinforcement prestressed in sections and reinforcement stressed after span structure or part or branch thereof movement in design position is (0.5 - 0.95):(0.5 - 0.05). |
 Method for preassembled building structure mounting / 2273689Method involves arranging launching beams to be connected one to another on bridge pier; welding supports adapted to prevent span structure displacement to launching beams so that the supports are arranged along the full length thereof; connecting slides having two walls in lower parts thereof to span structure to be launched, wherein each span structure is provided with at least two slides; securing pushing means to launching beams. |
| Device for bridge span structure protrusion / 2297490 Span structure protrusion device comprises support with leveling member provided with antifriction surface, load-bearing with friction and antifriction surfaces and reciprocating cylinders connected to the support. Span structure protrusion device also has additional bearing members. The support has window. The bearing members are provided with thrust members, which periodically cooperate with reciprocating cylinders and connected with each other by means of hinges so that closed loop is formed. The closed loop is arranged in antifriction surface of the leveling member and in support window. Device has additional cylinders pivotally connected to support. The bearing members are provided with additional thrust members arranged in staggered order below main cylinders. Friction surface has convexities formed on bearing members. The convexities may have pyramidal shapes. The leveling member is made as spherical support. |
| Device for bridge span structure protrusion / 2297491 Device comprises building berth for bridge span structure sections assemblage, pushing means, fixed protruding means and side movement limiting means cooperating with lower sheet of main span structure beams. Main beam defining radius curve in plane is supported by fixed protruding means. Movable protruding means, which may be displaced in transversal direction, are installed on bridge piers in area of another main beam supporting, wherein the main beam has curvilinear section defined in plane, which differs from above radius curve. The movable protruding means are made as transversal bearing beams with guiding means adapted to receive movable support section bearing ball support section. The ball support section carries sleeve bearing cooperating with lower sheet of main beam. The sleeve bearing is made as tangential support section resting upon ball support section and having upper balancer. Connected to upper balancer is frame having longitudinal beams made as balancing beams. Transversal beams of the frame are provided with side thrusts formed on cantilever parts thereof to cooperate with lower sheet of main span structure beam. |
| Span structure assemblage method and hoisting device for above method realization / 2301294 Method involves ashore assembling span structure on building slipway; advancing thereof to assemblage site by means of floating supports; lifting span structure with the use of hoisting device and installing thereof on permanent piers. Span structure is assembled as subassembly with main trusses without cantilevered roadway panel mounting on extreme panels. Floating supports are moved so that one permanent pier is between main trusses of span structure subassembly and subassembly center of gravity is in line between permanent pier axes. Then hoisting devices are installed on permanent piers of the bridge and after subassembly lifting to design mark subassembly hanged under hoisting device is moved in transversal direction up to longitudinal subassembly axis alignment with that of the bridge. Hoisting device comprises load-bearing frame, lifting hydraulic cylinders, catching means, suspension means and traverse fastened to bridge span subassembly. Transversal cantilevered beams are fixedly secured to permanent pier head. Load-bearing frame freely rests upon cantilevered beams. The cantilevered beams are provided with means for load-bearing frame movement in transversal direction. Cantilevered beams may be provided with beam trussing system located in lower parts thereof. |
| Device for longitudinal bridge span structure protrusion / 2313629 Device comprises pushing and braking means, pylon with guy lines fastened to span structure by the first ends thereof, and with flexible ties passing over rollers. The rollers are arranged on head of support, which is the first in span structure protrusion direction and is provided with haulage means. Receiving cantilever is arranged in lower part of the same support. Pylon has shoes arranged in lower part thereof. Guy lines and flexible ties are made as control and haulage block and tackle systems correspondingly. The block and tackle systems have lower blocks secured to pylon shoes by means of hinged clips. Upper blocks of control block and tackle system are secured to span structure bottom. Free cable ends of said block and tackle system are connected to winch installed on span structure. Free ends of cables included in haulage block and tackle system pass through support head rollers and are connected with haulage means made as winch with weight. Pylon is of telescopic type and consists of main and sliding members provided with coaxial orifices and fixers inserted in the orifices. Inclinometer is arranged in area of hinged pylon connection with span structure. Hinged clips are provided with sensors, which determine force in cables of control and haulage block and tackle systems. Device comprises means for span structure end flexure determination and deviation in plane view. Said means is made as target connected to span structure end and sighting device aimed on the target. The sighting device is installed on head of support, which is the first in span structure protrusion direction, and is coaxial to longitudinal bridge axis. |
| Device for string-and-roller beam protrusion / 2315147 Device comprises piers and two parallel load-bearing strings stretched between the piers so that the strings are directed along axis of design position of each beam to be protruded into bridge span for accurate beam installation on support parts without beam displacement in transversal direction. Device also has support and suspended trolleys. Beam may be hanged to suspended trolley comprising electric drive for trolley movement along strings. Piers have string height control mechanisms, which change string heights over bridge piers. Suspended trolley may have mechanism, which puts front beam end on support parts. |
| Method of bridge span assembly / 2385982 In method of bridge span assembly, including assembly of bridge span mount unit, comprising traffic area boards, main trusses and cross inks, arrangement of bridge span mount unit in initial lower position so that at least one of stands of bridge permanent support is arranged between main trusses of mount unit, lifting of mount unit to a design elevation by means of a weight-lifting device, transverse motion of bridge span mount unit till longitudinal axis of mount unit matches longitudinal axis of bridge, installation of bridge span mount unit onto permanent supports, in process of bridge span mount unit assembly end sections of main trusses are left as unoccupied with traffic area boards and cross links by length that provides for arrangement of permanent supports stands in available free space between main trusses, and as mount unit is installed in initial lower position, parallel position of mount unit axis and longitudinal bridge axis is provided with a permissible deviation from such position by value of up to 3°, as well as arrangement of axes passing through support platforms of the main trusses of bridge span mount unit and support platforms of permanent supports, in a single vertical plane, besides missing units of traffic area and cross links are mounted on completion of bridge span mount unit installation onto permanent supports into design position. Application of stated technical solution makes it possible to obtain considerable economic effect and to reduce time of construction. At the same time proposed technology provides for safe performance of mounting works. |
| Method for incremental launching of bridge span / 2390601 Method relates to the field of bridge engineering and may be used to cover navigable span of recovered bridge. Method for incremental launching of bridge span includes assembly of span on embankment of approach zones, assembly of launching nose, installation of traction braking and lifting devices, and also its launching. The novelty is the fact that in process of incremental launching of single span by proposed method, length of launching nose makes 0.25-0.5 of span length. Launching of span includes two stages. At the first stage main beams of span are combined into continuous system, by means of partial launching of inner beam into outer one and closing by temporary fixing devices, where inner beam during launching serves as counter-weight. With the help of traction devices span is launched into bay. At the second stage launching nose is disassembled, continuous system is brought to split one, by means of complete insertion of the main inner beam into outer one with the help of traction devices, besides outer beam is anchored and simultaneously serves as knurling scaffolds for the inner one. Anchor fixtures are dismantled, and the structure is lowered onto supports into design position. |
FIELD: construction.
SUBSTANCE: device for longitudinal launching of bridge spans comprises a roller track with side stops, a pushing device and a rolling device, comprising roller carriages with support sheets, rubber gaskets and a transition beam interacting with the lower belt of the launched span. The transition beam along the axis of the bridge is equipped with symmetrically arranged support cantilevers, to which power jacks are fixed with the help of spring suspensions, and in the direction transverse to the axis of the bridge, the transition beam has stops at two sides with inbuilt adjustment accessories, which interact with support sheets of the roller carriages. Adjustment accessories are made in the form of a screw-nut system, the screw in which interacts with support sheets of roller carriages. Support sheets are equipped with guide slots, in which the roller carriages are fixed. Power jacks are made as hydraulic with a drive from a manual pump station.
EFFECT: improved reliability.
4 cl, 3 dwg
The invention relates to the bridge building and can be used for longitudinal sliding bridge spans.
A device for longitudinal sliding bridge spans, including Nakatomi way with side stops pushing device and nacadoches the device, consisting of a roller carriages with reference sheets, rubber gaskets and transition beams interacting with the lower zone of the superstructure of the bridge /1/.
The disadvantage of the device for longitudinal sliding bridge spans is requiring extensive of lifting operations span during the adjustment provisions of roller carriages with reference sheets that in the process of sliding because of irregularities nematocera ways and neveretheless axes roller carriages transition beams and road axis deviates from the longitudinal axis of the bridge and in some cases even cut side stops.
The present invention aims at the simplification and, accordingly, reduction of technological process on correction of the longitudinal position of roller carriages with reference sheets, and in some cases there is no need for the device side stops.
Delivered the problem is solved due to the fact that the device for longitudinal sliding bridge spans, including Nakatomi way, pushing device and nacadoches device consisting of a roller carriages with reference sheets, rubber gaskets and transition beams interacting with lower belt nedvijimogo span transition beam along the axis of the bridge is equipped with symmetrically arranged supporting consoles, which with the help of a spring suspensions attached power jacks, and in a cross from the axis of the bridge towards transition beam has two sides stops with the built-in regulating devices that interact with reference sheets roller carriages.
Regulatory adaptations can be made in the form of a screw-nut, the screw which interacts with the control sheets roller carriages.
The invention is illustrated by drawings, where
- 1 shows nacadoches device, the facade;
- figure 2 shows nacadoches device, side view;
- figure 3 shows nacadoches device, top view.
Device for longitudinal sliding bridge spans includes Nakatomi path 1 with the side stops and pushing device (not shown), fastened one end to navigaion floating building 2, and others - to nakatakda path 1. The device also includes nacadoches device 3, consisting of roller carriages 4 moving on nematocera path 1 and installed in the guide slots (not shown) reference sheet 5. Nacadoches device 3 is also the adapter beam 6, supported through the rubber grommets 7 on a supporting sheet 5. Transition beam 6 of its top plane interacts with the lower zone 8 nedvijimogo spans 2 and is equipped with symmetrically arranged along the axis of the bridge support consoles 9. To support consoles 9 by means of spring suspensions 10 attached power jacks 11. Power jacks 11 can be completed with hydraulic drive a manual pump station (on the drawing are shown). Transition beam 6 attached to the span structure 2 and is equipped with two sides across the axis of the bridge supports 12 with the built-in wobbles in the form of a screw-nut 13, screws which interact with the control sheet 5 of roller carriages 4. Between transition beam 6 and lower belt 8 spans 2 is a metal gasket 14.
Device for longitudinal sliding bridge spans works as follows. In the process longitudinal sliding spans 2 roller carriage 4 because of irregularities nematocera path 1 and neveretheless axes roller carriages transition beams and road axis deviates from the longitudinal axis of the bridge and periodically demands their return to its original position, coaxially with the superstructure 2. For this to operate the power cylinders 11, which, resting in Nakatomi path 1 and supporting console 9, taking transition beams 6 and spans 2 released roller carriage 4. By means of system of a screw-nut 13 effect on the sheets 5 and return roller carriage 4 to the original position. Then power cylinders 11 due to the return stroke of the pistons put the superstructure 2 on roller carriage 4, after which the process longitudinal sliding spans 2 repeat until the next stage of adjustment of the roller carriages 4.
Sources of information taken into account
1. The project of JSC "Institute Institut giprostroimost" №RD/PS Longitudinal span buildings 5-6-7-8-9-10 railway bridge on PC 342+60 combined (road and railway) road Adler - Alpika - Service", M, 2011
1. Device for longitudinal sliding bridge spans, including Nakatomi way with side stops pushing device and nacadoches device consisting of a roller carriages with reference sheets, rubber gaskets and transition beams interacting with lower belt nedvijimogo spans, wherein the transition beam along the axis of the bridge is equipped with symmetrically arranged supporting consoles, which with the help of a spring suspensions attached power jacks, and in a cross from the axis of the bridge towards transition beam has two sides stops with the built-in regulating devices that interact with reference sheets roller carriages.
2. Device for longitudinal sliding bridge spans according to claim 1, wherein the regulatory adaptations made in the form of a screw-nut, the screw which interacts with the control sheets roller carriages.
3. Device for longitudinal sliding bridge spans according to claim 1 or 2, wherein the reference sheets provided with the guide slots, which set forth the roller carriage.
4. Device for longitudinal sliding bridge spans one (any) of claims 1 to 3, wherein power jacks made a hydraulic driven by a hand pump station.