CN111851319A - Beam transporting and erecting equipment and construction method for erecting box beam - Google Patents

Abstract

The invention provides a beam transporting and erecting device and a construction method for erecting box beams, which relate to the technical field of bridge construction, and the beam transporting and erecting device comprises: the beam carrying trolley comprises a trolley body and a beam carrying trolley, wherein the trolley body is provided with a first track, and the beam carrying trolley is arranged on the first track and is suitable for carrying box girder segments or half box girders to run along the first track; the bridge girder erection machine comprises a transportation platform and a machine body, wherein the transportation platform is connected with the machine body and is suitable for bearing at least part of the machine body; and the butt joint structure is suitable for connecting the beam transporting vehicle and the bridge girder erection machine, after the beam transporting vehicle is connected with the bridge girder erection machine, the first track is aligned to the second track, and the beam carrying trolley is suitable for running from the first track to the second track. After the girder transporting vehicle and the bridge girder erection machine are connected through the butt joint structure, the box girder sections are transferred from the girder transporting vehicle to the transportation platform for assembly, the requirement of replacing the box girders of the existing line is met, and the construction safety can be improved.

Description

Beam transporting and erecting equipment and construction method for erecting box beam

Technical Field

The invention relates to the technical field of bridge construction, in particular to a beam transporting and erecting device and a construction method for erecting box beams.

Background

With the lapse of time, some line bridges constructed in early stage of China are close to the design rated life, and besides normal maintenance, some box girders which do not meet the use requirements or are damaged need to be replaced on the basis of not damaging the existing lines. The existing line has limited bearing capacity, and cannot meet the transportation of large-tonnage box girders, and particularly, the construction safety is particularly important under special construction conditions of mountains, canyons, rivers and the like or when the requirement of girder replacement with a span of 24m, 36m and more exists.

When changing the case roof beam operation to existing circuit, generally adopt steel construction case roof beam replacement concrete case roof beam, fall into a plurality of sections with the steel case roof beam and carry out the dispersion transportation when the transportation, assemble again before the hoist and mount, like this, the fortune roof beam car needs and the butt joint of bridging machine to make things convenient for the case roof beam section to shift and assemble.

The beam transporting vehicle and the bridge girder erection machine of the existing beam transporting and erecting equipment are respectively integrated, are generally limited to erecting a whole-hole box girder with large dead weight, cannot transfer and assemble box girder segments before hoisting, and cannot meet the requirement of replacing the box girder of the existing line.

Disclosure of Invention

The invention solves the problem of how to erect box girders on existing lines with limited bearing capacity.

In order to solve the above problems, the present invention provides a girder transporting apparatus, comprising:

the beam transporting vehicle comprises a vehicle body and a beam carrying trolley, wherein the vehicle body is provided with a first track, and the beam carrying trolley is arranged on the first track and is suitable for carrying box girder segments or half box girders to run along the first track;

the bridge girder erection machine comprises a transportation platform and a machine body, wherein the transportation platform is connected with the machine body and is suitable for bearing at least part of the machine body, and a second rail is arranged on the machine body of the transportation platform and is suitable for the girder-carrying trolley to run;

the butt joint structure is suitable for connecting the beam transporting vehicle and the bridge girder erection machine, after the beam transporting vehicle is connected with the bridge girder erection machine, the first track is aligned to the second track, and the beam carrying trolley is suitable for running from the first track to the second track.

Optionally, the docking structure comprises a protruding structure, a groove structure and a fixing component, the protruding structure is arranged at one end of the vehicle body facing the table body, the groove structure is arranged at one end of the table body facing the vehicle body, and/or the protruding structure is arranged at one end of the table body facing the vehicle body, the groove structure is arranged at one end of the vehicle body facing the table body, and the protruding structure is suitable for extending into the groove structure; the fixing component is suitable for connecting the vehicle body and the table body.

Optionally, the fixing component includes a connecting plate, first pins, a clamping plate and second pins, the two first pins respectively penetrate through two ends of the connecting plate to be connected with the car body and the table body, and the clamping plate is connected with the first pins to fix the connecting plate; the car body is provided with a first pin hole, the table body is provided with a second pin hole, and the second bolt is suitable for being inserted into the first pin hole and the second pin hole.

Optionally, the docking structure further comprises an adjusting cylinder, one end of the adjusting cylinder is adapted to be supported on a bridge deck, and the other end of the adjusting cylinder is adapted to be connected with the vehicle body or the platform body.

Optionally, the girder-carrying trolley comprises a traction assembly, the traction assembly is suitable for being connected with the trolley body and dragging the girder-carrying trolley to run along the first track and/or the second track.

Optionally, the traction assembly comprises a power cylinder, a traction plate and a traction rope, one end of the power cylinder is connected with the platform body, the other end of the power cylinder is connected with the traction plate, and two ends of the traction plate are respectively connected with the frame of the beam-carrying trolley through the traction rope.

Optionally, the table body is provided with traction holes, and the traction holes are arranged on the top surface of the table body at intervals along the length direction of the table body and are suitable for being connected with one end of the power cylinder through a connecting piece.

Optionally, the machine body comprises a horn and a support assembly, at least a portion of the support assembly being connected to the table body and adapted to support the horn.

Optionally, the support assembly includes a front leg, a middle leg and a rear leg, and the front leg, the middle leg and the rear leg are sequentially disposed at the bottom of the horn in the length direction of the horn; the front support leg, the middle support leg and the rear support leg are all suitable for extending and/or folding; the front supporting legs are suitable for being supported on piers to be erected, and the middle supporting legs and the rear supporting legs are suitable for being supported on the platform body.

Optionally, the bridge girder erection machine further comprises a hoisting device, wherein the hoisting device comprises a front trolley and a rear trolley, and the front trolley and the rear trolley are both arranged on the horn and are suitable for running on the horn along the length direction of the horn or transversely moving along the width direction of the horn.

In order to solve the above problems, the present invention further provides a construction method for erecting a box girder, which adopts the above-mentioned frame girder transporting equipment, including:

step 1, preparing a bridge girder erection machine of the girder transporting and erecting equipment to be in place;

step 2, butting the body of the beam transporting vehicle with the platform body of the transportation platform;

step 3, the box girder segments are conveyed to the transportation platform by the girder carrying trolley of the girder transporting vehicle, the box girder segments are assembled into the half-width box girder on the transportation platform, or the half-width box girder assembled in advance is conveyed to the transportation platform by the girder carrying trolley of the girder transporting vehicle;

step 4, adjusting the supporting posture of a supporting component of the bridge girder erection machine;

step 5, hoisting the half-width box girder by a hoisting device of the bridge girder erection machine;

and 6, repeating the steps 2 to 5 to finish hoisting of the other half box girder.

Compared with the prior art, the invention has the following beneficial effects: after the girder transporting vehicle of the girder transporting and erecting equipment is connected with the bridge girder erection machine through the butt joint structure, the first track on the vehicle body is aligned with the second track on the platform body, the girder carrying trolley runs from the first track to the second track, the box girder segment is transferred from the girder transporting vehicle to the transportation platform for assembly, the transportation platform is connected with the machine body and bears part of the machine body, the area of the transportation platform is large, the weight distribution of the machine body is more uniform, the local bearing of the existing line can be reduced, meanwhile, the height of the transportation platform is low, the gravity center of the girder transporting and erecting equipment can be reduced, and the stability is improved.

Drawings

FIG. 1 is a schematic structural diagram of a girder transporting device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a beam carrier of the beam carrier device in the embodiment of the invention;

FIG. 3 is an enlarged view of the portion A in FIG. 2 according to the present invention;

FIG. 4 is a schematic structural diagram of a bridge girder erection machine of the girder transportation equipment in the embodiment of the invention;

fig. 5 is a schematic structural view of a butt joint structure of the girder transporting apparatus according to the embodiment of the present invention;

FIG. 6 is an enlarged view of the embodiment of the present invention at B in FIG. 5;

FIG. 7 is a schematic structural view of a projection structure of a vehicle body in an embodiment of the invention;

FIG. 8 is a schematic structural diagram of a raised structure of a stage according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a traction assembly of the piggyback trolley according to the embodiment of the present invention;

fig. 10 is a schematic structural view of another view of the traction assembly of the piggyback trolley according to the embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a platform of the transportation platform according to an embodiment of the present invention;

FIG. 12 is a schematic view of a state corresponding to step 1 in the construction method according to the embodiment of the present invention;

FIG. 13 is a schematic view of a state corresponding to step 1 in the construction method according to the embodiment of the present invention;

FIG. 14 is a schematic diagram illustrating a state corresponding to step 2 in the construction method according to the embodiment of the present invention;

FIG. 15 is a schematic diagram illustrating a state corresponding to step 3 in the construction method according to the embodiment of the present invention;

FIG. 16 is a schematic diagram illustrating a state corresponding to step 3 in the construction method according to the embodiment of the present invention;

FIG. 17 is a schematic diagram illustrating a state corresponding to step 3 in the construction method according to the embodiment of the present invention;

FIG. 18 is a schematic diagram illustrating a state corresponding to step 4 in the construction method according to the embodiment of the present invention;

FIG. 19 is a schematic diagram illustrating a state corresponding to step 5 in the construction method according to the embodiment of the present invention;

fig. 20 is a schematic view of a state corresponding to step 5 in the construction method according to the embodiment of the present invention.

Description of reference numerals:

1-girder transporting vehicle, 2-bridge girder erection machine, 3-transportation platform, 4-machine body, 5-butt joint structure, 6-hoisting device, 11-vehicle body, 12-girder carrying trolley, 13-first rail, 14-traction component, 31-platform body, 32-second rail, 41-machine arm, 42-support component, 51-bulge structure, 52-groove structure, 53-fixing component, 54-adjusting oil cylinder, 61-front hoisting trolley, 62-rear hoisting trolley, 111-first pin hole, 121-vehicle frame, 141-power oil cylinder, 142-traction plate, 143-traction rope, 311-second pin hole, 312-traction hole, 421-front support leg, 422-middle support leg, 423-rear support leg, 531-connecting plate, 532-first bolt, 533-snap gauge, 534-second bolt, 100-box girder segment, 200-half box girder, 300-bridge deck and 400-pier.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the front, and correspondingly, the reverse direction of "X" represents the rear; the forward direction of "Y" represents the left direction, and correspondingly, the reverse direction of "Y" represents the right direction; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the lapse of time, some line bridges constructed in early stage of China are close to the design rated life, and besides normal maintenance, some box girders which do not meet the use requirements or are damaged need to be replaced on the basis of not damaging the existing lines. The existing line has limited bearing capacity, and cannot meet the transportation of large-tonnage box girders, and particularly, the construction safety is particularly important under special construction conditions of mountains, canyons, rivers and the like or when the requirement of girder replacement with a span of 24m, 36m and more exists. When changing the case roof beam operation to existing circuit, generally adopt steel construction case roof beam replacement concrete case roof beam, fall into a plurality of sections with the steel case roof beam and carry out the dispersion transportation when the transportation, assemble again before the hoist and mount, like this, the fortune roof beam car needs and the butt joint of bridging machine to make things convenient for steel case roof beam section to shift and assemble. The beam transporting vehicle and the bridge girder erection machine of the existing beam transporting and erecting equipment are respectively integrated, are generally limited to erecting a whole-hole box girder with large dead weight, cannot transfer and assemble box girder segments before hoisting, and cannot meet the requirement of replacing the box girder of the existing line.

To solve the above problems, as shown in fig. 1, 2, 3, 4, 5 and 11, an embodiment of the present invention provides a racking beam apparatus, including: the beam transporting vehicle 1 comprises a vehicle body 11 and a beam carrying trolley 12, wherein the vehicle body 11 is provided with a first track 13, the beam carrying trolley 12 is arranged on the first track 13 and is suitable for carrying the box girder segment 100 or the half box girder 200 to run along the first track 13; the bridge girder erection machine 2 comprises a transportation platform 3 and a machine body 4, wherein the transportation platform 3 is connected with the machine body 4 and is suitable for bearing at least part of the machine body 4, a platform body 31 of the transportation platform 3 is provided with a second rail 32, and the second rail 32 is suitable for the girder-carrying trolley 12 to run; and the butt joint structure 5 is suitable for connecting the beam transporting vehicle 1 and the bridge girder erection machine 2, after the beam transporting vehicle 1 is connected with the bridge girder erection machine 2, the first track 13 is aligned with the second track 32, and the beam carrying trolley 12 is suitable for running from the first track 13 to the second track 32.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 11, the girder transporting and erecting equipment comprises a girder transporting vehicle 1 and a bridge erecting machine 2, wherein the girder transporting vehicle 1 comprises a power system, a control system, a traveling system, a vehicle body 11 and a girder carrying trolley 12, a first rail 13 is arranged on the vehicle body 11 along the length direction, the girder carrying trolley 12 is arranged on the first rail 13 and is used for carrying a box girder segment 100 or a half box girder 200 and can travel along the first rail 13, the girder carrying trolley 12 comprises two, namely a front girder carrying trolley and a rear girder carrying trolley, the front girder carrying trolley is driven by a power cylinder to realize traveling, the rear girder carrying trolley is not provided with power, and the rear girder carrying trolley is driven by friction force to travel under the pressure load of the box girder; the vehicle body 11 may be a flat car body 11 or a frame car body 11, and is not limited herein. The beam crane 2 comprises a transportation platform 3 and a machine body 4, the transportation platform 3 comprises a power system, a control system, a walking system and a platform body 31, a support position for connecting and carrying the machine body 4 is arranged on the platform body 31, at least one part of the machine body 4 is connected and supported on the top surface of the platform body 31, a channel for the box girder sections 100 to pass through is formed between the machine body and the platform body 31, after the box girder sections 100 are conveyed to the transportation platform 3, half-width box girders 200 can be assembled on the platform body 31 of the transportation platform 3, the platform body 31 and the machine body 4 can be connected by adopting welding, anchoring connection or movable connection, and the like, a second rail 32 is also arranged on the top surface of the platform body 31 along the length direction, the track distance between the second rail 32 and the first rail 13 is consistent, the second rail 32 is suitable for the trolley 12 to walk, the second rail 32 is respectively provided with a left branch rail and a right branch rail at the front part of the platform body 31, the front beam-carrying trolley and the rear beam-carrying trolley can travel to the left side or the right side of the trolley body 31 along the left side branch rail or the right side branch rail; the one end of the automobile body 11 of fortune roof beam car 1 towards the stage body 31 of transportation platform 3 and the one end of the stage body 31 of transportation platform 3 towards the automobile body 11 of fortune roof beam car 1 are equipped with docking structure 5 that matches each other, and docking structure 5 can adopt the face butt joint, also can adopt three-dimensional butt joint, and in this embodiment, docking structure 5 adopts three-dimensional butt joint, and the butt joint face of three-dimensional butt joint is more, and is bigger, and the butt joint effect is better. After the girder transporting vehicle 1 of the girder transporting equipment is connected with the bridge girder erection machine 2, the first rail 13 is aligned with the second rail 32, the girder carrying trolley 12 can run from the first rail 13 to the second rail 32, and the box girder segments 100 or half of the box girders 200 are transferred from the girder transporting vehicle 1 to the transportation platform 3 of the bridge girder erection machine 2. The power system, the control system and the walking system of the transportation platform 3 of the beam transporting vehicle 1 and the beam hanging machine 2 can adopt the conventional and mature prior art.

As shown in fig. 1 and 2, the longitudinal direction of the vehicle body 11 is a forward direction or a reverse direction along the X axis.

Like this, after girder transporting car 1 and the bridge girder erection machine 2 of girder erection equipment are connected through butt-joint structural 5, first track 13 on the automobile body 11 and the second track 32 on the stage body 31 are counterpointed, carry the roof beam platform truck 12 and walk from first track 13 to second track 32, transfer a plurality of case roof beam segments 100 from transporting car 1 to transport platform 3 and assemble, or will assemble in advance half a width of case roof beam 200 from transporting car 1 and transfer to transport platform 3 on, transport platform 3 is connected with organism 4, bear partial organism 4, transport platform 3 area is big, make organism 4 weight distribution more even, can reduce the local of existing circuit and bear, simultaneously, transport platform 3 is high low, can reduce the focus of transporting the roof beam equipment of erection, stability has been improved, therefore, not only satisfied the demand that the existing circuit changed the case roof beam, can also improve the security of construction.

Alternatively, the docking structure 5 includes a protrusion structure 51, a groove structure 52 and a fixing component 53, the protrusion structure 51 is disposed at an end of the vehicle body 11 facing the table body 31, the groove structure 52 is disposed at an end of the table body 31 facing the vehicle body 11, and/or the protrusion structure 51 is disposed at an end of the table body 31 facing the vehicle body 11, the groove structure 52 is disposed at an end of the vehicle body 11 facing the table body 31, and the protrusion structure 51 is adapted to extend into the groove structure 52; the fixing member 53 is adapted to connect the vehicle body 11 and the table body 31.

As shown in fig. 5 to 8, the protruding structures 51 and the recessed structures 52 are arranged along the length direction of the vehicle body 11 or the table body 31, one or more protruding structures 51 may be arranged, correspondingly, one or more recessed structures 52 may be arranged, and the protruding structures 51 and the recessed structures 52 may be vertically matched or horizontally matched; the fixing member 53 may be formed of a single member, such as various types of steel or steel bars, welded to the vehicle body 11 and the table body 31, or may be formed of a plurality of members detachably attached to the vehicle body 11 and the table body 31.

In this embodiment, a protruding structure 51 and a recessed structure 52 are disposed at an end of the vehicle body 11 facing the platform body 31, the recessed structure 52 is disposed above the protruding structure 51 to form a step-like structure, correspondingly, a recessed structure 52 and a protruding structure 51 are disposed at an end of the platform body 31 facing the vehicle body 11, the recessed structure 52 is disposed below the protruding structure 51 to form a eave-like structure, the protruding structure 51 on the vehicle body 11 extends into the recessed structure 52 on the platform body 31, the protruding structure 51 on the platform body 31 extends into the recessed structure 52 on the vehicle body 11, and the fixing component 53 is detachably connected to the vehicle body 11 and the platform body 31 by using a plurality of components.

Like this, stretch into groove structure 52 through protruding structure 51 to fixed subassembly 53 by dismantling the connection on automobile body 11 and stage body 31 is fixed, makes automobile body 11 and stage body 31 dock, and protruding structure 51 and groove structure 52 cooperation are simple, and it is effectual to dock, and fixed subassembly 53 adopts the mode of dismantling the connection, and convenient operation is nimble.

Optionally, the fixing component 53 includes a connecting plate 531, first latches 532, two clamping plates 533 and a second latch 534, the two first latches 532 respectively penetrate through two ends of the connecting plate 531 to be connected with the vehicle body 11 and the table body 31, and the clamping plates 533 are connected with the first latches 532 to fix the connecting plate 531; the vehicle body 11 is provided with a first pin hole 111, the table body 31 is provided with a second pin hole 311, and the second bolt 534 is adapted to be inserted into the first pin hole 111 and the second pin hole 311.

As shown in fig. 5 to 8, the connection plate 531 may have various shapes such as a rectangle, a circle, a triangle, or a combination thereof, and the connection plate 531 may be connected to the vehicle body 11 and the table body 31 by welding, riveting, or screwing; the first pin hole 111 is vertically arranged on the convex structure 51 on the vehicle body 11, the second pin hole 311 is vertically arranged on the convex structure 51 on the table body 31, the shape of the second bolt 534 can be square, circular, triangular, polygonal or the combination of the square, circular, triangular and polygonal shapes, the first pin hole 111 and the second pin hole 311 are the same in size, correspondingly, the shape can be square, circular, triangular, polygonal or the combination of the square, circular, triangular and polygonal shapes, and can be a common hole or a threaded hole with threads.

In this embodiment, the connecting plate 531 is a rectangular connecting plate 531, the long side of the rectangular connecting plate 531 is arranged along the horizontal direction, one end of the rectangular connecting plate 531 is detachably connected to the protruding structure 51 of the vehicle body 11, the other end of the rectangular connecting plate 531 is detachably connected to the table body 31, and the rectangular connecting plate 531 is more matched with the side shape of the vehicle body 11 or the table body 31, so that the connection is more convenient. Through holes are respectively formed at both ends of the connecting plate 531, screw holes are respectively formed in the car body 11 and the table body 31 corresponding to the through holes at both ends of the connecting plate 531, the screw holes are provided with internal threads, the first bolts 532 are provided with external threads, the two first bolts 532 respectively pass through the through holes at both ends of the connecting plate 531 to be in threaded connection with the screw holes on the car body 11 and the table body 32, the two clamping plates 533 are respectively connected with both ends of the connecting plate 531 to fix the first bolts 532, an annular clamping groove is arranged at the outward end of the first bolt 532, an upper group of sliding grooves and a lower group of sliding grooves which are parallel are arranged at the through hole at the two ends of the connecting plate 531, when the first pin 532 is screwed into the screw hole, the clamping plate 533 is attached to the connecting plate 531, so that the upper and lower edges of the clamping plate 533 slide into the two sets of sliding grooves, one side edge of the clamping plate 533 is clamped into the annular clamping groove of the first pin 532, so that the connecting plate 531 is fixed between the clamping plate 533 and the car body 11 and the table body 31. The second bolt 534 is a circular bolt, correspondingly, the first pin hole 111 and the second pin hole 311 are common round holes, when the car body 11 and the platform 31 are aligned, in the vertical direction, the centers of the first pin hole 111 and the second pin hole 311 are on the same straight line, the second bolt 534 is inserted into the first pin hole 111 and the second pin hole 311 in sequence to connect the step-shaped structure of the car body 11 with the eave-shaped structure of the platform 31, the outer wall of the circular bolt is smooth, and the first pin hole 111 and the second pin hole 311 are conveniently inserted.

Like this, connect automobile body 11 through connecting plate 531 one end, the stage body 31 is connected to the other end, two first bolts 532 pass the both ends of connecting plate 531 respectively and are connected with automobile body 11 and stage body 31, a part and the first bolt 532 of cardboard 533 are connected, another part and the connecting plate 531 of cardboard 533 are connected, make the both ends of connecting plate 531 realize dismantling with automobile body 11 and stage body 31 respectively and be connected, insert the second bolt 534 in proper order and set up first pinhole 111 on automobile body 11 and set up the second pinhole 311 on stage body 31, make automobile body 11 and stage body 31 connect more firmly, simultaneously connecting plate 531, first bolt 532, cardboard 533 and second bolt 534 are convenient to be dismantled, be convenient for fortune roof beam car 1 breaks away from transport platform 3 and carries out follow-up transport work.

Optionally, the docking structure 5 further comprises an adjusting cylinder 54, one end of the adjusting cylinder 54 is adapted to be supported on the deck 300, and the other end of the adjusting cylinder 54 is adapted to be connected with the vehicle body 11 or the table body 31.

As shown in fig. 5 to 8, one or more adjusting cylinders 54 may be provided, and may be connected to the vehicle body 11 or the platform body 31, or may be stored as spare parts on the equipment, combined when needed, or replaced by a jack or other power parts.

In this embodiment, two adjusting cylinders 54 are provided, the lower ends of the two adjusting cylinders 54 are respectively supported on the bridge floor 300, the upper ends of the adjusting cylinders 54 are respectively contacted with the lower bottom surfaces of the car body 11 and the table body 31, and the heights of the car body 11 and the table body 31 are adjusted by the lifting of the adjusting cylinders 54, so that the car body 11 and the table body 31 are conveniently aligned.

Thus, the adjusting oil cylinder 54 can adjust the height of the vehicle body 11 and the platform body 31, the butt joint is more convenient, and the butt joint of the first track 13 on the vehicle body 11 and the second track 32 on the platform body 31 is more accurate.

Optionally, the piggyback trolley 12 includes a traction assembly 14, the traction assembly 14 adapted to be connected to the trolley body 31 and to draw the piggyback trolley 12 to travel along the first track 13 and/or the second track 32.

As shown in fig. 9 and 10, the girder-carrying trolley 12 includes a frame 121, a sliding block fixed to the bottom of the frame 121, a rubber pad adapted to slide on the first rail 13 or the second rail 32 for bearing the weight of the girder and reducing the friction between the frame 121 and the first rail 13 or the second rail 32, generally made of an anti-friction material, and a traction assembly 14 fixed to the upper end surface of the frame 121 for cushioning the bottom of the girder to ensure uniform stress of the supporting portion, generally made of a rubber material dedicated for the bridge, the traction assembly 14 for drawing the girder-carrying trolley 12 to run along the first rail 13 or the second rail 32, and the traction assembly 14 may be a power device fixed to the trolley, such as an electric motor, a hydraulic cylinder, etc., or may be a plurality of components that change positions on the trolley 32 as the girder-carrying trolley 12 moves.

In this embodiment, since the stroke from one end of the platform 31 to the other end is long, if a power device fixed on the platform 31 is adopted, the length of the rigging is long, which is easy to cause winding or other faults, therefore, the traction assembly 14 is composed of a plurality of components and is detachably connected to the platform 31, and the traction assembly 14 adjusts the position on the platform 31 according to the running condition of the girder-carrying trolley 12, so that the length of the rigging can be shortened, the running speed of the girder-carrying trolley 12 can be conveniently controlled, and the safety is higher.

Optionally, the traction assembly 14 includes a power cylinder 141, a traction plate 142 and a traction rope 143, one end of the power cylinder 141 is connected to the platform 31, the other end of the power cylinder 141 is connected to the traction plate 142, and both ends of the traction plate 142 are respectively connected to the frame 121 of the girder-carrying trolley 12 through the traction rope 143.

As shown in fig. 9 and 10, the power cylinder 141 is disposed along the length direction of the table body 31, two ends of the power cylinder 141 and the table body 31 and the traction plate 142 may be fixedly connected by welding, riveting, or the like, or detachably connected by a connector or a screw thread, the traction plate 142 may be rectangular, circular, triangular, polygonal, or various combined shapes thereof, and may be a metal plate, a wood plate, or a plastic plate, and the traction rope 143 may be a plastic rope, a hemp rope, a nylon rope, a cotton rope, or a steel wire rope.

As shown in fig. 9 and 10, the longitudinal direction of the table 31 is a forward direction or a reverse direction along the X axis.

In this embodiment, the traction plate 142 is made of a steel material and is substantially rectangular with a left-right length and a front-back length, the forward side of the traction plate 142 is in a curve or broken line transition from the middle to two sides and gradually becomes smaller, a connection structure is arranged in the middle of the forward side, connection structures are also arranged at two ends of the backward side, the connection structures can be hole structures, connection columns or other connection structures, the traction rope 143 is made of a steel wire rope, two ends of the power cylinder 141 are respectively provided with a connection hole or a connection column and are respectively detachably connected with the table body 31 and the traction plate 142 through connection pieces, and two ends of the traction plate 142 are respectively connected with two side ends of the frame 121 of the girder-carrying trolley 12 through the traction rope 143.

Therefore, the traction plate 142 is driven to move forwards by the contraction of the power oil cylinder 141, the two side ends of the traction plate 142 are connected with the two side ends of the frame 121 of the beam-carrying trolley 12 through the traction ropes 143, so that the beam-carrying trolley 12 is driven to move forwards, the traction plates 142 are bilaterally symmetrical, the power oil cylinder 141 is arranged in the middle of the two traction ropes 143, the loads of the traction ropes 143 on the left side and the right side of the traction plate 142 are balanced, and the beam-carrying trolley 12 can move more stably.

Optionally, the table body 31 is provided with drawing holes 312, and the drawing holes 312 are spaced along the length direction of the table body 31 on the top surface of the table body 31 and are adapted to be connected with one end of the power cylinder 141 through a connector.

As shown in fig. 9 to 11, a plurality of traction holes 312 are provided, the plurality of traction holes 312 are arranged at intervals along the length direction of the table body 31, the traction holes 312 may be arranged in a straight line or in an irregular curve, the traction holes 312 may be arranged along the central axis of the table body 31 or in a direction away from both sides of the central axis of the table body 31, and the distance between the traction holes 312 may be greater than or less than the stroke of the power cylinder.

In this embodiment, a plurality of drawing holes 312 are spaced along the central axis of the platform 31, and the distance between two drawing holes 312 is smaller than the stroke of the power cylinder 141, one end of the power cylinder 141 is provided with a connecting hole, after the connecting hole is aligned with the drawing hole 312, a bolt is inserted into the connecting hole and the drawing hole 312, the bolt is fixed by using a lock nut, so that the power cylinder 141 is connected with the platform 31, when the power cylinder 141 contracts to draw the girder-carrying trolley 12 to travel for a stroke, the lock nut is removed, the bolt is pulled out, so that one end of the power cylinder 141 extending out to the power cylinder 141 is moved to the next drawing hole 312, the girder-carrying trolley 12 can be continuously drawn by repeating the above operations, the drawing holes 312 are spaced along the central axis of the platform 31, so that the power cylinder 141 can be arranged at the middle position of the platform 31, and the drawing ropes 143 on the left and right sides of the girder-carrying trolley 12 are more, the walking of the girder-carrying trolley 12 is more stable, the distance between the two traction holes 312 is smaller than the stroke of the power cylinder 141, the length of the traction rope 143 is not required to be adjusted manually, when the power cylinder 141 extends, one end of the power cylinder 141 can be moved to the next traction hole 312, and the operation is more convenient.

As shown in fig. 11, the central axis of the table 31 is a straight line on which the imaginary line γ is located.

Thus, one end of the power cylinder 141 is connected to the platform 31 through the latch and the traction hole 312, so that the traction assembly 14 can adjust the position on the platform 31 according to the running condition of the girder-carrying trolley 12 and continuously traction the girder-carrying trolley 12, the running speed of the girder-carrying trolley 12 is conveniently controlled, and the safety is higher.

Optionally, the body 4 comprises a horn 41 and a support assembly 42, at least a portion of the support assembly 42 being connected to the table body 31 and adapted to support the horn 41.

As shown in fig. 1 to 4, in this embodiment, the boom 41 is a frame-type boom 41, the support assemblies 42 are connected to two sides of the bottom of the boom 41, the boom 41 is supported above the table 31, a channel through which the box girder segments 100 or the box girder segments 200 can pass is formed between the boom 41 and the table 31, half of the box girder 200 can be assembled on the table 31 after the box girder segments 100 are transported to the transportation platform 3, and the table 31 and the support assemblies 42 can be connected by welding, anchoring, or movably connecting.

Like this, support assembly 42 connects the bottom both sides of horn 41 to support horn 41 in stage 31 top, form the passageway that can supply box girder segment section 100 to pass through between horn 41 and the stage 31, make box girder segment section 100 can transfer to transport platform 3 from fortune roof beam car 1 and assemble into half width of a box girder 200, make things convenient for follow-up hoist and mount to the box girder.

Optionally, the support assembly 42 includes a front leg 421, a middle leg 422 and a rear leg 423, and the front leg 421, the middle leg 422 and the rear leg 423 are sequentially disposed at the bottom of the horn 41 in the length direction of the horn 41; the front leg 421, the middle leg 422 and the rear leg 423 are adapted to be telescopic and/or foldable; the front leg 421 is adapted to be supported on the pier 400 to be erected, and the middle leg 422 and the rear leg 423 are adapted to be supported on the platform body 31.

As shown in fig. 1 to 4, in this embodiment, the front leg 421 is disposed at a forward end of the bottom of the horn 41 and is vertically connected to the horn 41, a turnover cylinder is disposed in the middle of the front leg 421, the turnover cylinder can turn over the lower half portion of the front leg 421 forward or vertically support the lower half portion on the pier 400 to be erected, when a box girder needs to be erected, the turnover cylinder drives the lower half portion of the front leg 421 to turn over downward to a vertical state and support the lower half portion on the pier 400 to be erected, and when the box girder needs to be moved after being erected, the turnover cylinder drives the lower half portion of the front leg 421 to turn over forward to a horizontal state or a state that does not hinder the bridge girder erection machine 2 from moving; the middle support leg 422 is arranged in the middle of the bottom of the horn 41 and connected with the horn 41, the middle support leg 422 can be supported on the platform body 31 of the transportation platform 3, and can also be extended and/or folded back and forth, when the girder transporting vehicle 1 needs to be butted with the bridge girder erection machine 2, the middle support leg 422 is folded downwards and extended to a support position supported on the platform body 31, and when the bridge girder erection machine 2 needs to hoist a box girder, the middle support leg 422 is contracted and folded upwards; the rear supporting leg 423 is arranged at one rearward end of the bottom of the horn 41 and is connected with the horn 41, the rear supporting leg 423 can be supported on the platform body 31 of the transportation platform 3 and can also extend and/or turn over backward, when the girder transporting vehicle 1 needs to be in butt joint with the bridge girder erection machine 2, the rear supporting leg 423 turns over backward, and when the bridge girder erection machine needs to hoist a box girder, the rear supporting leg 423 turns over downward and extends to a supporting position supported on the platform body 31.

Like this, support the horn 41 of frame bridge machine 2 on the stage body 31 of transportation platform 3 and the pier 400 of treating erectting through the preceding landing leg 421, well landing leg 422 and the back landing leg 423 that set up in the horn 41 bottom to through the flexible and the book of turning over of each landing leg, cooperate the transfer and the hoist and mount of case roof beam section 100, make frame bridge machine 2 can accomplish the via hole operation in advance before hoist and mount case roof beam, reduced the operational risk, safe and reliable more.

Optionally, the bridge girder erection machine 2 further comprises a hoisting device 6, wherein the hoisting device 6 comprises a front trolley 61 and a rear trolley 62, and the front trolley 61 and the rear trolley 62 are both arranged on the boom 41 and are adapted to run on the boom 41 along the length direction of the boom 41 or to traverse along the width direction of the boom 41.

As shown in fig. 1 to 4, a rail is provided on the boom 41, a front trolley 61 and a rear trolley 62 are connected to the rail of the boom 41 through a hanging wheel or other components and can move and/or move transversely along the rail, the front trolley 61 is used for lifting the front end of the box girder, and the rear trolley 62 is used for lifting the rear end of the box girder; after the box girder segments 100 are assembled on the platform body 31, the bridge girder erection machine 2 adjusts the hoisting posture, the front crane trolley 61 and the rear crane trolley 62 respectively hoist the front end and the rear end of the half box girder 200, and move forward along the track of the horn 41 to the girder erection position, and then move transversely to the girder falling position to fall the girder and complete the erection of the half box girder 200.

As shown in fig. 1 and 4, the longitudinal direction of the horn 41 is the forward direction or the reverse direction of the X axis, and the width direction of the horn 41 is the direction of a straight line perpendicular to the plane of the X axis and the Z axis.

Therefore, the hoisting device 6 runs and transversely moves on the machine arm 41, so that the operation of hole passing by the bridge girder erection machine 2 while hoisting the box girder is avoided, the operation risk is reduced, and the bridge girder erection machine is safer and more reliable.

The embodiment of the invention also provides a construction method for erecting the box girder, which adopts the above girder transporting equipment and comprises the following steps:

step 1, preparing a bridge girder erection machine 2 of the girder transportation equipment to be in place;

as shown in fig. 1, fig. 2, fig. 4, fig. 12, fig. 13 and fig. 14, before the box girder is erected, the bridge girder erection machine 2 of the girder transportation equipment needs to be prepared in advance to be in place, so that the operation of passing through holes in the process of erecting the box girder is avoided, and the operation risk is reduced; as shown in fig. 1, fig. 2, fig. 4, fig. 12, fig. 13, and fig. 14, step 1 specifically includes the following steps:

step 1.1, a carrier body 4 of a transport platform 3 of a bridge girder erection machine 2 runs to a station of a box girder to be erected along a bridge floor 300 of an existing line and is fixed on the bridge floor 300;

step 1.2, turning the front supporting legs 421 downwards, and supporting the front supporting legs on the bridge piers 400 to be erected;

step 1.3, folding the rear supporting leg 423 backwards to be in a horizontal state;

step 2, butting the body 11 of the beam transporting vehicle 1 with the platform body 31 of the transportation platform 3;

specifically, as shown in fig. 5, 11 and 14, step 2 includes the following steps:

step 2.1, the girder transporting vehicle 1 runs to a docking station, the height of the platform body 31 of the transporting platform 3 or the height of the vehicle body 11 of the girder transporting vehicle 1 is adjusted by the adjusting oil cylinder 54 of the docking structure 5, so that the convex structure 51 of the platform body 31 extends into the groove structure 52 of the vehicle body 11, and the first rail 13 of the girder transporting vehicle 1 is aligned with the second rail 32 of the transporting platform 3;

step 2.2, connecting the vehicle body 11 with the table body 31 through the fixing component 53;

step 3, the girder-carrying trolley 12 of the girder-carrying vehicle 1 transports the box girder segments 100 to the transportation platform 3, a plurality of box girder segments 100 are assembled into a half-width box girder 200 on the transportation platform 3, or the girder-carrying trolley 12 of the girder-carrying vehicle 1 transports the half-width box girder 200 assembled in advance to the transportation platform 3;

specifically, as shown in fig. 9, 10, 15, 16, and 17, step 3 includes the following steps:

step 3.1, connecting the power oil cylinder 141 of the traction assembly 14 to the traction hole 312 of the platform body 31 through the bolt, adjusting the position of the power oil cylinder 141 in real time according to the walking condition of the beam-carrying trolley 12, and driving the beam-carrying trolley 12 to walk along the first rail 13 and the second rail 32 through the extension and contraction of the power oil cylinder 141;

step 3.2, if the box girder segments 100 are carried by the girder carrying trolley 12, sequentially transferring the box girder segments 100 to a preset position on the trolley body 31 and assembling, and if the half-width box girder 200 is carried by the girder carrying trolley 12, drawing the girder carrying trolley 12 to the preset position;

in this step, when the span of the section of road with better construction conditions or the pier 400 to be erected is small and the weight of the box girder segment 100 is light, the box girder segment 100 can be assembled in a girder yard before the girder carrying trolley 12 is carried, so that the operation time in a construction site can be reduced, the risk is reduced, and the efficiency is improved.

Step 4, adjusting the supporting posture of the supporting component 42 of the bridge girder erection machine 2;

specifically, in conjunction with fig. 18, step 4 includes the steps of:

step 4.1, the rear supporting leg 423 extends out and turns over downwards and is supported on the supporting position of the table body 31;

step 4.2, the middle supporting leg 422 is forwards turned to be in a horizontal state;

step 5, hoisting the half box girder 200 by the hoisting device 6 of the bridge girder erection machine 2;

specifically, as shown in fig. 19 and 20, step 5 includes the following steps:

step 5.1, the front crane trolley 61 and the rear crane trolley 62 travel to the upper part of the half-width box girder 200 along the track on the machine arm 41;

step 5.2, the front crane trolley 61 is connected with the front end of the half-width box girder 200 and lifts the front end of the half-width box girder 200, and the front beam carrying trolley moves to the left side of the platform body 31 along the left side branch rail of the second rail 32;

in this step, since the front girder-carrying trolley can move to the left side of the trolley body 31 along the left side branch rail of the second rail 32, the rear girder-carrying trolley is not affected to move to the end of the second rail 32 along the second rail 32, and half of the box girders 200 can be transported to the maximum extent.

Step 5.3, the front crane trolley 61 and the rear girder-carrying trolley move the half-width box girder 200 together until the rear girder-carrying trolley runs to the end of the second track 32;

in this step, the front crane trolley 61 and the rear girder-carrying trolley move the half-width box girder 200 together, so that the center of gravity of the half-width box girder 200 can be lowered to the maximum extent when the half-width box girder is conveyed forwards, and the half-width box girder runs on the second track 32 without being suspended completely, thereby being more stable and safe.

Step 5.4, the rear trolley 62 moves to the hanging beam position and is connected with the rear end of the half-width box girder 200, and the front trolley 61 and the rear trolley 62 move the half-width box girder 200 to the girder erecting position together;

step 5.5, the front trolley 61 and the rear trolley 62 move transversely to the beam falling position of the half-width box beam 200 to one side together, and the beam falling position is erected with the half-width box beam 200;

and 6, repeating the steps 2 to 5 to finish the hoisting of the other half box girder 200.

In this embodiment, the erection of the box girder is completed through steps 1 to 6.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims (11)

1. A racking beam apparatus, comprising:

the beam transporting vehicle (1) comprises a vehicle body (11) and a beam carrying trolley (12), wherein the vehicle body (11) is provided with a first track (13), the beam carrying trolley (12) is arranged on the first track (13) and is suitable for carrying box beam sections (100) or half box beams (200) to run along the first track (13);

the bridge girder erection machine (2) comprises a transportation platform (3) and a machine body (4), wherein the transportation platform (3) is connected with the machine body (4) and is suitable for bearing at least part of the machine body (4), a platform body (31) of the transportation platform (3) is provided with a second rail (32), and the second rail (32) is suitable for the girder-carrying trolley (12) to run;

a docking structure (5) adapted to connect the girder transporting vehicle (1) and the bridge girder erection machine (2), wherein after the girder transporting vehicle (1) is connected with the bridge girder erection machine (2), the first track (13) is aligned with the second track (32), and the girder-carrying trolley (12) is adapted to run from the first track (13) to the second track (32).

2. A girder according to claim 1, wherein the docking structure (5) comprises a projection structure (51), a groove structure (52) and a fixing assembly (53), the projection structure (51) being provided at an end of the car body (11) facing the platform (31), the groove structure (52) being provided at an end of the platform (31) facing the car body (11), and/or the projection structure (51) being provided at an end of the platform (31) facing the car body (11), the groove structure (52) being provided at an end of the car body (11) facing the platform (31), the projection structure (51) being adapted to extend into the groove structure (52); the fixing assembly (53) is suitable for connecting the vehicle body (11) and the table body (31).

3. The truss beam apparatus as claimed in claim 2, wherein the fixing assembly (53) comprises a connecting plate (531), a first pin (532), two first pins (532), a clamping plate (533) and a second pin (534), the two first pins (532) are respectively connected with the car body (11) and the table body (31) through two ends of the connecting plate (531), the clamping plate (533) is connected with the first pin (532) to fix the connecting plate (531); the vehicle body (11) is provided with a first pin hole (111), the table body (31) is provided with a second pin hole (311), and the second bolt (534) is suitable for being inserted into the first pin hole (111) and the second pin hole (311).

4. A girder according to claim 2, wherein the abutting structure (5) further comprises an adjustment cylinder (54), one end of the adjustment cylinder (54) being adapted to be supported on a bridge deck (300), the other end of the adjustment cylinder (54) being adapted to be connected to the car body (11) or the platform body (31).

5. The racking beam apparatus according to any one of claims 1 to 4 wherein said piggyback trolley (12) comprises a traction assembly (14), said traction assembly (14) adapted to connect with said carriage (31) and to pull said piggyback trolley (12) to run along said first track (13) and/or said second track (32).

6. The truss beam device as claimed in claim 5, wherein the traction assembly (14) comprises a power cylinder (141), a traction plate (142) and a traction rope (143), one end of the power cylinder (141) is connected with the platform body (31), the other end of the power cylinder (141) is connected with the traction plate (142), and two ends of the traction plate (142) are respectively connected with the frame (121) of the girder-carrying trolley (12) through the traction rope (143).

7. The frame girder apparatus according to claim 6, wherein the table body (31) is provided with drawing holes (312), the drawing holes (312) are spaced apart along the length direction of the table body (31) at the top surface of the table body (31), and are adapted to be connected to one end of the power cylinder (141) by a connector.

8. A girder according to any one of claims 1-4, wherein the body (4) comprises a horn (41) and a support assembly (42), at least a part of the support assembly (42) being connected to the table body (31) and adapted to support the horn (41).

9. The frame girder apparatus according to claim 8, wherein the support assembly (42) comprises a front leg (421), a middle leg (422) and a rear leg (423), and the front leg (421), the middle leg (422) and the rear leg (423) are sequentially disposed at the bottom of the horn (41) in the length direction of the horn (41); the front leg (421), the middle leg (422) and the rear leg (423) are adapted to be telescopic and/or foldable; the front supporting leg (421) is suitable for being supported on a bridge pier (400) to be erected, and the middle supporting leg (422) and the rear supporting leg (423) are both suitable for being supported on the platform body (31).

10. A girder transport apparatus according to claim 9, wherein the bridge girder erection machine (2) further comprises a hoisting device (6), the hoisting device (6) comprising a front trolley (61) and a rear trolley (62), the front trolley (61) and the rear trolley (62) being arranged on the horn (41) and being adapted to run on the horn (41) in a length direction of the horn (41) or to traverse in a width direction of the horn (41).

11. A construction method for erecting a box girder using the girder transporting apparatus according to any one of claims 1 to 10, comprising:

step 1, preparing a bridge girder erection machine (2) of the girder transporting and erecting equipment to be in place;

step 2, butting a vehicle body (11) of the beam transporting vehicle (1) with a platform body (31) of the transportation platform (3);

step 3, the box girder sections (100) are conveyed to the transportation platform (3) by the girder-carrying trolley (12) of the girder-transporting vehicle (1), the box girder sections (100) are assembled into the half-width box girder (200) on the transportation platform (3), or the half-width box girder (200) which is assembled in advance is conveyed to the transportation platform (3) by the girder-carrying trolley (12) of the girder-transporting vehicle (1);

step 4, adjusting the supporting posture of a supporting component (42) of the bridge girder erection machine (2);

step 5, hoisting the half-width box girder (200) by a hoisting device (6) of the bridge girder erection machine (2);

and 6, repeating the steps 2 to 5 to finish hoisting of the other half box girder (200).

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