CN114934449A - Assembled bridge segment assembling continuous beam bridge erecting machine - Google Patents
Assembled bridge segment assembling continuous beam bridge erecting machine Download PDFInfo
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- CN114934449A CN114934449A CN202210863583.5A CN202210863583A CN114934449A CN 114934449 A CN114934449 A CN 114934449A CN 202210863583 A CN202210863583 A CN 202210863583A CN 114934449 A CN114934449 A CN 114934449A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention belongs to the technical field of bridge erection construction, and particularly relates to an assembly type bridge section assembling continuous beam bridge erecting machine; the single girder comprises a main girder which is of a triangular truss structure, a front support leg and a rear support leg are fixedly arranged below the front and rear girder ends of the main girder respectively, two ground support legs capable of sliding along the length direction of the main girder are arranged below the girder body of the main girder, a track and a rack are arranged on the lower chord of the single girder, and the middle support legs are matched with the lower chord track and the rack; the beam body of the main beam is provided with a lifting crown block which can slide along the length direction of the main beam, the upper chord of the single beam is provided with a track, the lifting crown block is matched with the upper chord track, and the end part of the upper chord track is provided with a stop; n groups of hanging devices are arranged on the girder body of the main girder according to the number of the bridge sections, wherein n is an integer larger than 1; the bridge girder erection machine is mainly used for erecting assembled continuous girders of assembled bridge sections of high-speed railways, can meet the requirements of large-gradient and small-radius bent bridges and bridge erection, and is also more convenient in places with good construction conditions on plain.
Description
Technical Field
The invention belongs to the technical field of bridge erection construction, and particularly relates to an assembled bridge section assembling continuous beam erecting machine.
Background
A prestressed bridge prefabricated segment span-by-span assembling construction process is characterized by that the upper structure of bridge is divided into several standard segments, after the matched prefabrication of prefabricated site is completed, on the site special assembling equipment such as bridge erecting machine is used to assemble the bridge lower structure on the bridge in turn, at the same time the prestress is applied to make it into an integral structure, and the span-by-span propulsion and span-by-span installation can be implemented along the preset installation direction.
With the social progress and the improvement of the environmental awareness of people, the construction environment of the bridge is more and more valued by the government and people. The prefabricated bridge has the advantages of standard component production, rapid and convenient field installation, energy conservation and environmental protection in construction, can reduce the influence on atmospheric environment and traffic roads, improves the quality and safety quality, and improves the civilized construction level, and is the development trend of the bridge industry in China. In the construction process of the assembled bridge of the high-speed railway, due to the characteristics of the assembling construction process of the segmental assembling continuous beam, the existing equipment cannot meet the current construction, and aiming at the problem, the invention needs to invent a bridge girder erection machine applied to the segmental assembling continuous beam in the assembled bridge of the high-speed railway.
Disclosure of Invention
The invention aims to provide a bridge girder erection machine applied to a section-assembled continuous beam in an assembled bridge girder of a high-speed railway, and aims to solve the problem that the traditional equipment cannot meet the construction requirement of the section-assembled continuous beam.
In order to solve the problems, the technical scheme adopted by the invention is as follows: an assembled bridge section assembling continuous beam bridge erecting machine comprises a main beam, wherein the main beam is of a triangular truss structure and comprises two single beams which are connected into a rectangular frame body through front and rear auxiliary connecting beams; the single beam is divided into a plurality of sections, and the upper chord and the lower chord among the sections are connected by pin shafts; the lower parts of the front beam end and the rear beam end of the main beam are respectively fixedly provided with a front supporting leg and a rear supporting leg, two middle supporting legs capable of sliding along the length direction of the main beam are arranged below the beam body of the main beam, the lower chord of the single beam is provided with a track and a rack, and the middle supporting legs are matched with the lower chord track and the rack; the beam body of the main beam is provided with a lifting crown block which can slide along the length direction of the main beam, the upper chord of the single beam is provided with a track, the lifting crown block is matched with the upper chord track, and the end part of the upper chord track is provided with a stop; the girder body of the main girder is provided with n groups of hanging devices according to the number of the bridge sections, wherein n is an integer larger than 1.
Furthermore, the front supporting leg comprises a front supporting leg upper cross beam, a front supporting leg telescopic cylinder, a ground beam, a front supporting leg supporting oil cylinder, a front supporting leg connecting beam and a front supporting leg lower cross beam; the upper cross beam of the front support leg is connected with the main beam, a front support leg telescopic cylinder is respectively arranged below the beam ends at two sides of the upper cross beam of the front support leg, the front support leg telescopic cylinder comprises an upper cylinder body and a lower cylinder body which are movably spliced, the upper cylinder body is connected with the upper cross beam of the front support leg, a front support leg connecting beam is connected between the two upper cylinder bodies, a front support leg lower cross beam and a ground beam are connected between the two lower cylinder bodies, and two ends of a front support leg supporting oil cylinder are respectively connected with the front support leg connecting beam and the front support leg lower cross beam; the upper barrel and the lower barrel are provided with vertically arranged pin holes, pin shafts penetrate through the pin holes of the upper barrel and the lower barrel after being aligned, the positions of the pin shafts penetrating through the telescopic barrels are adjusted according to different working conditions to adjust the length of the front supporting leg, and a person standing platform is arranged on the lower cross beam of the front supporting leg.
Further, the back landing leg includes the back landing leg entablature, the back landing leg telescopic cylinder, the back landing leg bottom end rail, back landing leg supporting cylinder, the back landing leg entablature is connected with the girder, respectively set up a back landing leg telescopic cylinder under the both sides beam-ends of back landing leg entablature, back landing leg telescopic cylinder includes, two sections activity grafting's barrel down, go up the barrel and be connected with the back landing leg entablature, back landing leg bottom end rail is connected between two barrels down, back landing leg entablature and back landing leg bottom end rail are connected respectively to the both ends of back landing leg supporting cylinder, it has vertical arrangement's pinhole to go up to open on barrel and the barrel down, the round pin axle penetrates after the pinhole of going up barrel and barrel aligns, wear the length of round pin axle position control back landing leg according to the telescopic cylinder of different operating modes adjustment.
Furthermore, the middle support leg comprises two branch support legs which are connected into a door-shaped support through a middle support leg cross beam;
the branch supporting legs comprise a jack top crossbeam, a jack lower crossbeam, a middle supporting leg telescopic cylinder, a lifting jack, a rotating disc, a transverse moving hydraulic cylinder, a balance beam, a longitudinal moving wheel box and a reverse hanging wheel;
the jack top crossbeam is vertical to the middle support leg crossbeam and is arranged at the bottom of the middle support leg crossbeam, and the middle support leg telescopic cylinders are arranged at the beam ends of the jack top crossbeam and the jack lower crossbeam; the middle support leg telescopic cylinder comprises an upper cylinder body and a lower cylinder body which are movably inserted, the upper cylinder body is connected with an upper beam of the jack, the lower cylinder body is connected with a lower beam of the jack, and the lifting jack is connected between the upper beam of the jack and the lower beam of the jack; the upper cylinder body and the lower cylinder body are provided with vertically arranged pin holes, pin shafts are inserted into the pin holes of the upper cylinder body and the lower cylinder body after the pin holes are aligned, and the length of the support leg in the telescopic cylinder pin shaft penetrating position adjustment is adjusted according to different working conditions;
the rotary disc, the balance beam and the longitudinal shifting wheel box are sequentially arranged on the beam top of the middle supporting leg beam from bottom to top, the mortise at the bottom of the rotary disc is clamped on the beam flange of the middle supporting leg beam, and the transverse shifting hydraulic cylinder is connected between the rotary disc and the middle supporting leg beam; the longitudinal moving wheel box is contacted with the lower chord track of the main beam and enables the main beam to move longitudinally through the rack, the side plate of the longitudinal moving wheel box is provided with a reverse hanging wheel, the reverse hanging wheel is hung on the flange of the lower chord track of the main beam, and the position of the middle supporting leg is integrally moved through the reverse hanging wheel and the rack.
Furthermore, a hanging beam is arranged in the main beam, the hanging device comprises an anchoring beam, a hanging rod and a shoulder pole beam, a fixture which can translate along the length direction of the beam body through screw driving is arranged on the shoulder pole beam, the upper end of the hanging rod penetrates through the hanging beam and is provided with an anchorage device, the lower end of the hanging rod is connected with the fixture on the shoulder pole beam, the anchoring beam and the shoulder pole beam are vertically arranged at two beam ends at the bottom of the shoulder pole beam, and the anchoring beam is used for being anchored and connected with the bridge section.
Furthermore, the lifting overhead travelling crane comprises a sliding trolley, a load beam, a transverse hydraulic mechanism and a lifting mechanism, wherein the load beam spans two single beams of the main beam and is erected on the main beam through the sliding trolleys on two sides;
the hoisting mechanism is arranged on the stretcher beam and comprises a winch, a pulley block, a steel wire rope and a lifting appliance, the steel wire rope led out from the winch bypasses the pulley block, the lifting appliance is connected with the pulley block, and the transverse hydraulic mechanism is connected between the hoisting mechanism and the stretcher beam;
the lifting appliance comprises a pulley block connecting beam, lifting columns and a swinging cross beam, the pulley block connecting beam is connected with a pulley block, the lifting columns are installed below the pulley block connecting beam through a horizontal rotary joint, the swinging cross beam is installed below the lifting columns through a vertical rotary joint, two adjusting jacks are arranged on the vertical face of the beam body on one side of the swinging cross beam, two hinged arms are arranged on the vertical face of the beam body on the other side of the swinging cross beam, and the free ends of the adjusting jacks and the hinged arms are connected with corresponding hinged lugs on the shoulder pole beam through pin shafts.
Furthermore, flanges with sliding surfaces at the bottom are arranged on the vertical surfaces of the two side beam bodies of the carrying pole beam, the flanges on the vertical surfaces of the two side beam bodies are paired in pairs, the clamps are clamped on the carrying pole beam, the mortises on the two sides are matched with the flanges, the screw rod penetrates through the screw hole of the carrying pole beam, and the screw rod is supported on the bearing seat at the top of the carrying pole beam.
Compared with the prior art, the invention has the advantages that:
the assembled bridge section assembling continuous beam erecting machine provided by the invention is mainly used for erecting assembled bridge sections of assembled bridges of high-speed railways, can meet the requirements of large-gradient and small-radius bent bridges and bridge erection, and is also more convenient in places with good construction conditions in plain.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the front leg.
Fig. 3 is a schematic structural view of the rear leg.
Fig. 4 is a schematic structural diagram of the middle leg.
Fig. 5 is a side view of fig. 4.
Fig. 6 is a schematic structural diagram of a hoisting overhead travelling crane.
Fig. 7 is a side view of fig. 6.
Fig. 8 is a schematic structural diagram of a hoisting overhead crane and a hoisting device (connected with a beam).
Fig. 9 is a schematic structural diagram of a hoisting overhead traveling crane and a hoisting device.
In the figure: 1-a main beam; 1.1-monolithic beam; 1.2-auxiliary connecting beam;
2-rear support legs; 2.1-supporting leg upper beam; 2.2-rear supporting leg telescopic cylinder; 2.3-rear support leg lower beam; 2.4-rear supporting leg supporting oil cylinder;
3-middle support leg; 3.1-middle support leg beam; 3.2-top beam of jack; 3.3-lower beam of jack; 3.4-middle support leg telescopic cylinder; 3.5-lifting jack; 3.6-rotating the disc; 3.7-traversing hydraulic cylinder; 3.8-balance beam; 3.9-longitudinally moving the wheel box; 3.10-reverse change gear;
4-front leg support; 4.1-front supporting leg upper beam; 4.2-front supporting leg telescopic cylinder; 4.3-ground beam; 4.4-front leg connecting beam; 4.5-front supporting leg supporting oil cylinder; 4.6-front leg lower beam;
5, lifting the overhead travelling crane; 5.1-sliding the trolley; 5.2-stretcher bar; 5.3-a transverse moving hydraulic mechanism; 5.4-a winch; 5.5-pulley block; 5.6-connecting the pulley block with the beam; 5.7-hanging column; 5.8-swinging the beam; 5.9-adjusting the jack; 5.10-articulated arm;
6-hanging device; 6.1-anchoring the beam; 6.2-a boom; 6.3-carrying pole beam; 6.4-fixture; 6.5-flange;
7-hanging the beam;
8-bridge section.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
As shown in fig. 1-9: the utility model provides a continuous beam structure bridge crane is assembled to assembled bridge segment, includes girder 1, and girder 1 is triangle truss-like structure, adopts shaped steel and steel sheet welding to form, has advantages such as light in structure, good, the stability is strong, wind-resistant ability is big, simple to operate, appearance are pleasing to the eye. The main beam 1 comprises two single beams 1.1, and the two single beams 1.1 are connected into a rectangular frame body by front and rear auxiliary connecting beams 1.2; the single beam 1.1 is divided into 9 sections, each section is 12 meters in length and 108 meters in total length, and the upper chord and the lower chord between the sections are connected by pin shafts, so that disassembly, assembly and transportation are facilitated.
A front support leg 4 and a rear support leg 2 are respectively fixedly arranged below the front beam end and the rear beam end of the main beam 1, two ground support legs 3 capable of sliding along the length direction of the main beam 1 are arranged below the beam body of the main beam 1, a track and a rack are arranged on the lower chord of the single beam 1.1, and the ground support legs 3 are matched with the lower chord track and the rack; a hoisting overhead traveling crane 5 capable of sliding in the length direction of the main beam 1 is arranged on the beam body of the main beam 1, a track is arranged at the upper chord of the single beam 1.1, the hoisting overhead traveling crane 5 is matched with the upper chord track, and a stop is arranged at the end part of the upper chord track, so that the hoisting overhead traveling crane can conveniently run and can be prevented from derailing; the girder body of the main girder 1 is provided with n groups of hanging devices 6 according to the number of the bridge sections, each hanging device is used for temporarily supporting one bridge section, and n is an integer larger than 1.
As shown in fig. 2: the front supporting leg 4 is a main supporting structure at the front part of the bridge girder erection machine and mainly adopts a steel plate welding combined structure, and the front supporting leg 4 comprises a front supporting leg upper cross beam 4.1, a front supporting leg telescopic cylinder 4.2, a ground beam 4.3, a front supporting leg supporting oil cylinder 4.5, a front supporting leg connecting beam 4.4 and a front supporting leg lower cross beam 4.6. The front supporting leg upper beam 4.1 is connected with the main beam 1, a front supporting leg telescopic cylinder 4.2 is respectively arranged below the beam ends at two sides of the front supporting leg upper beam 4.1, the front supporting leg telescopic cylinder 4.2 comprises an upper cylinder body and a lower cylinder body which are movably spliced, and the lower cylinder body is inserted into the cavity of the upper cylinder body. The upper cylinder body is connected with a front support leg upper cross beam 4.1, a front support leg connecting beam 4.4 is connected between the two upper cylinder bodies, a front support leg lower cross beam 4.6 and a ground beam 4.3 are connected between the two lower cylinder bodies, and two ends of a front support leg supporting oil cylinder 4.5 are respectively connected with the front support leg connecting beam 4.4 and the front support leg lower cross beam 4.6. The upper barrel body and the lower barrel body are provided with vertically arranged pin holes, the front supporting leg supporting oil cylinder 4.5 acts to push the lower barrel body to extend or retract relative to the upper barrel body, the pin holes of the upper barrel body and the lower barrel body are aligned and then penetrated by pin shafts, the positions of the pin shafts of the telescopic barrels are adjusted according to different working conditions to adjust the length of the front supporting legs 4 so as to meet the self-stability requirement of erecting operation of a bridge longitudinal slope, a variable span, a curved bridge and a final hole bridge, and a human standing platform is arranged on the front supporting leg lower beam 4.6 to facilitate manual operation for pulling out and inserting the pin shafts. When the device works, the lower part of the front supporting leg fixes the bottom section on the cushion stone through the supporting oil cylinder, so that the front supporting leg does not rub or move with the position of the cushion stone when the front supporting leg is used for erecting a beam, and the front supporting leg is anchored with the pier top.
As shown in fig. 3: the rear supporting leg 2 is a main supporting structure at the rear part of the bridge girder erection machine and mainly adopts a steel plate welding combined structure, the rear supporting leg 2 comprises a rear supporting leg upper cross beam 2.1, a rear supporting leg telescopic cylinder 2.2, a rear supporting leg lower cross beam 2.3 and a rear supporting leg supporting oil cylinder 2.4, the rear supporting leg upper cross beam 2.1 is connected with a main beam 1, two rear supporting leg telescopic cylinders 2.2 are respectively arranged below the beam ends at two sides of the rear supporting leg upper cross beam 2.1, the rear supporting leg telescopic cylinder 2.2 comprises an upper cylinder body and a lower cylinder body which are movably inserted, the upper cylinder body is inserted into the cavity of the lower cylinder body, the upper cylinder body is connected with the rear supporting leg upper cross beam 2.1, the rear supporting leg lower cross beam 2.3 is connected between the two lower cylinder bodies, two ends of the rear supporting oil cylinder 2.4 are respectively connected with the rear supporting leg upper cross beam 2.1 and the rear supporting leg lower cross beam 2.3, vertically arranged pin holes are formed in the upper cylinder body and the lower cylinder body, the rear supporting oil cylinder 2.4 acts to push the lower cylinder body to extend or retract relative to the upper cylinder body, the upper cylinder body and the lower cylinder body are aligned with the pin holes, the length of the rear supporting leg 2 is adjusted by adjusting the pin shaft penetrating position of the telescopic cylinder according to different working conditions so as to meet the self-stability requirements of bridge longitudinal slope, span change, curve bridge and final hole bridge erection operation. When the rear support leg support device works, the lower part of the rear support leg fixes the bottom section on the cushion stone through the support oil cylinder, and the rear support leg is ensured not to rub and move with the cushion stone when the rear support leg supports a beam. And leveling the cushion stone by using a steel plate or fine sand when the cushion stone is not flat.
As shown in fig. 1 and 4: two well landing legs 3 support respectively at two main mound tops, and well landing leg 3 includes two branch's landing legs, and two branch's landing legs connect into a door type support through well landing leg crossbeam 3.1. The branch supporting leg comprises a jack upper beam 3.2, a jack lower beam 3.3, a middle supporting leg telescopic cylinder 3.4, a lifting jack 3.5, a rotary disc 3.6, a transverse hydraulic cylinder 3.7, a balance beam 3.8, a longitudinal shifting wheel box 3.9 and a reverse hanging wheel 3.10.
The jack top beam 3.2 is vertical to the middle support leg beam 3.1 and is arranged at the bottom of the middle support leg beam 3.1, and the middle support leg telescopic cylinder 3.4 is arranged at the beam ends of the jack top beam 3.2 and the jack lower beam 3.3; the middle supporting leg telescopic cylinder 3.4 comprises an upper cylinder body and a lower cylinder body which are movably spliced, the upper cylinder body is connected with an upper beam 3.2 of a jack, the lower cylinder body is connected with a lower beam 3.3 of the jack, and a lifting jack 3.5 is connected between the upper beam 3.2 of the jack and the lower beam 3.3 of the jack; the upper cylinder body and the lower cylinder body are provided with vertically arranged pin holes, a lifting jack 3.5 acts to push the lower cylinder body to extend or retract relative to the upper cylinder body, pin shafts penetrate through the pin holes of the upper cylinder body and the lower cylinder body after the pin holes are aligned, and the length of the supporting leg 3 in the position adjustment of the pin shaft penetrating position of the telescopic cylinder is adjusted according to different working conditions.
The rotary disc 3.6, the balance beam 3.8 and the longitudinal moving wheel box 3.9 are sequentially arranged on the beam top of the middle support leg beam 3.1 from bottom to top, a mortise at the bottom of the rotary disc 3.6 is clamped on a beam flange of the middle support leg beam 3.1, the transverse moving hydraulic cylinder 3.7 is connected between the rotary disc 3.6 and the middle support leg beam 3.1, and the transverse moving hydraulic cylinder 3.7 pushes the rotary disc 3.6 and the upper structure to move in the length direction perpendicular to the middle support leg beam 3.1 to meet the transverse moving requirement of the bridge girder erection machine. The longitudinal moving wheel box 3.9 is contacted with the lower chord track of the main beam 1 and enables the main beam 1 to move longitudinally through a rack, the side plate of the longitudinal moving wheel box is provided with a reverse hanging wheel 3.10, the reverse hanging wheel 3.10 is hooked on the flange of the lower chord track of the main beam 1, and the position of the middle supporting leg 3 is integrally moved through the reverse hanging wheel 3.10 and the rack.
As shown in fig. 8: the main beam 1 is internally provided with a hanging beam 7, the hanging device 6 comprises an anchoring beam 6.1, a hanging rod 6.2 and a shoulder pole beam 6.3, the shoulder pole beam 6.3 is provided with a fixture 6.4 which can translate along the length direction of the beam body through screw driving, the transverse distance of the fixture 6.4 is +/-300 mm, the transverse adjustment of the curved frame beam is met, the upper end of the hanging rod 6.2 penetrates through the hanging beam 7 and is provided with an anchorage, the lower end of the hanging rod is connected with the fixture 6.4 on the shoulder pole beam 6.3, the hanging rod is a 32-section finish-rolling threaded steel bar and is divided into an upper section and a lower section, the middle sections are connected through a connector, the anchoring beam 6.1 and the shoulder pole beam 6.3 are vertically arranged at two beam ends of the bottom of the shoulder pole beam 6.3, and the anchoring beam 6.1 is used for being in anchoring connection with bridge sections.
As shown in fig. 6, 7, 8, and 9: the lifting crown block 5 has the functions of lifting, transporting and erecting section beams, hoisting, transporting and hanging systems and the like. The lifting overhead crane 5 comprises a sliding trolley 5.1, a load beam 5.2, a transverse hydraulic mechanism 5.3 and a lifting mechanism, wherein the load beam 5.2 crosses two single beams 1.1 of the main beam 1 and is erected on the main beam 1 through the sliding trolleys 5.1 at two sides; the sliding trolley 5.1 carries a lifting crown block 5 to move along the length direction of the main beam 1.
The hoisting mechanism is arranged on the load beam 5.2, the hoisting mechanism comprises a winch 5.4, a pulley block 5.5, a steel wire rope and a lifting appliance, the steel wire rope led out from the winch 5.4 bypasses the pulley block 5.5, the lifting appliance is connected with the pulley block 5.5, and the traversing hydraulic mechanism 5.3 is connected between the hoisting mechanism and the load beam 5.2; the transverse hydraulic mechanism 5.3 pushes the winch 5.4 to move along the length direction of the stretcher beam 5.2 to change the lifting position of the lifting crown block.
The lifting appliance comprises a pulley block connecting beam 5.6, a lifting column 5.7 and a swinging cross beam 5.8, wherein the pulley block connecting beam 5.6 is connected with a pulley block 5.5, the lifting column 5.7 is arranged below the pulley block connecting beam 5.6 through a horizontal rotary joint, the swinging cross beam 5.8 is arranged below the lifting column 5.7 through a vertical rotary joint, two adjusting jacks 5.9 are arranged on the vertical surface of one side beam body of the swinging cross beam 5.8, two articulated arms 5.10 are arranged on the vertical surface of the other side beam body, and the free ends of the adjusting jacks 5.9 and the articulated arms 5.10 are connected with corresponding articulated lugs on the shoulder pole beam 6.3 through pin shafts. The hoisting crown block 5 is connected with a shoulder pole beam 6.3 arranged on the bridge section 8 by adjusting the jack 5.9 and the articulated arm 5.10, after the hoisting crown block 5 hoists the bridge section 8 to the right position, the suspender 6.2 is connected with the clamp 6.4, then the jack 5.9 is adjusted to be separated from the articulated arm 5.10, and the next bridge section is hoisted continuously.
Flanges 6.5 with sliding surfaces on the bottom surfaces are arranged on the vertical surfaces of beam bodies on two sides of the carrying pole beam 6.3, the flanges 6.5 on the vertical surfaces of the beam bodies on the two sides are paired pairwise, the flanges 6.5 are stress components, the fixture 6.4 is embraced on the carrying pole beam 6.3, the mortises on the two sides are matched with the flanges 6.5, the screw rod penetrates through a screw hole of the carrying pole beam 6.3, and the screw rod is supported on a bearing seat at the top of the carrying pole beam 6.3.
The electric system of the bridge girder erection machine mainly comprises three parts of hoisting electric control, hydraulic pump station electric control and walking electric control; the electric system adopts 415V three-phase four-wire system alternating current power supply, the zero line is connected with the machine body, the power supply inlet wire cable adopts four cores 3x25+1, the capacity is not less than 250A, and after the cable is connected by a main beam power distribution cabinet, the power supply inlet wire cable respectively supplies power to 5 pump stations (a front set, a middle set, a rear set and a trolley on each set), a middle supporting leg longitudinal moving system and a crown block hoisting longitudinal moving system.
The hydraulic system complete machine is matched with five sets, and the front supporting leg hydraulic system consists of a pump station, 120t supporting oil cylinders (2), hydraulic pipelines and an electric control system; the middle support leg hydraulic system consists of a pump station, 150t self-locking supporting oil cylinders (2), 100t self-locking supporting oil cylinders (1), a hydraulic pipeline and an electric control system; the rear supporting leg hydraulic system consists of a pump station, 120t supporting oil cylinders (2), hydraulic pipelines and an electric control system; the crown block hydraulic system consists of a pump station, 50t transverse moving oil cylinders (2), hydraulic pipelines and an electric control system.
The detailed steps of applying the bridge girder erection and the via hole of the embodiment are as follows:
the method comprises the following steps: and adjusting the bridge girder erection machine, driving the 1# block of the side span to the lower part of the main girder by using a girder transporting vehicle, and lifting the overhead travelling crane to the position right above the 1# block.
Step two: the 1# beam section of side span is promoted with lifting overhead traveling crane, transports to the position, promotes to target in place after rotatory, hangs the hook, accomplishes to hang, hangs the replacement, through moving about freely and quickly, has adjusted the roof beam piece position, and is taut with interim pull rod, tries to piece together the 1# beam section of side span.
Step three: the main span 1# beam section is lifted, transported to the position, lifted in place after rotation, hung with hooks, completed suspension, suspended replacement, adjusted beam position through longitudinal and transverse, tightened by temporary pull rods, and assembled in a trial mode to the main span 1# beam section.
Step four: and 2# to 5# blocks of the side span and the main span are hoisted in sequence by the same method to be spliced in a trial mode.
Step five: and (5) hoisting the side span 7# block, and placing the block above the top of the side pier.
Step six: and (5) hoisting the side span 6# block, and trying to splice.
Step seven: and trial splicing the 7# block, finishing the whole span trial splicing, comparing the whole span trial splicing with the designed elevation and the calculated elevation, and adjusting the data of the spliced elevation.
Step eight: and (4) separating from the 5# block and withdrawing by about 1m for hanging, and withdrawing the 7# block to the original hanging position.
Step nine: and 6# -1# blocks are separated in sequence, and 200mm gaps are reserved between the blocks.
Step ten: assembling the side span 1# block according to the trial assembly sequence, lifting the side span 1# block, applying glue, assembling, tensioning temporary prestress, and assembling the side span 1# block and the main span.
Step eleven: assembling the 2-7# blocks according to the assembling sequence, and tensioning and grouting the steel strand after the assembling is finished.
Step twelve: and (3) installing another main pier top 0# block in the assembling process, dismantling the suspender and passing a hole through the bridge crane.
Step thirteen: and constructing according to the former half-span assembling method to leave a half-span.
Fourteen steps: and (4) temporarily consolidating the mid-span closure segment, assembling templates and binding reinforcing steel bars, constructing the closure segment, and removing the bridge girder erection machine.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a continuous beam bridge crane is assembled to assembled bridge segment which characterized in that: the main beam (1) is of a triangular truss structure, the main beam (1) comprises two single beams (1.1), and the two single beams (1.1) are connected into a rectangular frame body through front and rear auxiliary connecting beams (1.2); the single beam (1.1) is divided into a plurality of sections, and the upper chord and the lower chord between the sections are connected by pin shafts; a front supporting leg (4) and a rear supporting leg (2) are fixedly arranged below the front beam end and the rear beam end of the main beam (1) respectively, two ground middle supporting legs (3) capable of sliding along the length direction of the main beam (1) are arranged below the beam body of the main beam (1), the lower chord of the single beam (1.1) is provided with a track and a rack, and the middle supporting legs (3) are matched with the lower chord track and the rack; a lifting crown block (5) capable of sliding along the length direction of the main beam (1) is arranged on the beam body of the main beam (1), a track is arranged on the upper chord of the single beam (1.1), the lifting crown block (5) is matched with the upper chord track, and a car stop is arranged at the end part of the upper chord track; n groups of hanging devices (6) are arranged on the girder body of the main girder (1) according to the number of the bridge sections, and n is an integer larger than 1.
2. The assembled bridge segment assembling continuous bridge erecting machine as claimed in claim 1, wherein: the front supporting leg (4) comprises a front supporting leg upper cross beam (4.1), a front supporting leg telescopic cylinder (4.2), a ground beam (4.3), a front supporting leg supporting oil cylinder (4.5), a front supporting leg connecting beam (4.4) and a front supporting leg lower cross beam (4.6); the front support leg upper cross beam (4.1) is connected with the main beam (1), a front support leg telescopic cylinder (4.2) is respectively arranged below the beam ends at two sides of the front support leg upper cross beam (4.1), the front support leg telescopic cylinder (4.2) comprises an upper cylinder body and a lower cylinder body which are movably spliced, the upper cylinder body is connected with the front support leg upper cross beam (4.1), a front support leg connecting beam (4.4) is connected between the two upper cylinder bodies, a front support leg lower cross beam (4.6) and a ground beam (4.3) are connected between the two lower cylinder bodies, and two ends of a front support leg supporting oil cylinder (4.5) are respectively connected with the front support leg connecting beam (4.4) and the front support leg lower cross beam (4.6); the upper barrel and the lower barrel are provided with vertically arranged pin holes, pin shafts penetrate through the pin holes of the upper barrel and the lower barrel after being aligned, the pin shaft penetrating positions of the telescopic barrels are adjusted according to different working conditions to adjust the length of the front supporting legs (4), and a person standing platform is arranged on the front supporting leg lower cross beam (4.6).
3. The assembled bridge segment assembling continuous bridge erecting machine as claimed in claim 1, wherein: the rear supporting leg (2) comprises a rear supporting leg upper cross beam (2.1), rear supporting leg telescopic cylinders (2.2), a rear supporting leg lower cross beam (2.3) and a rear supporting leg supporting oil cylinder (2.4), wherein the rear supporting leg upper cross beam (2.1) is connected with the main beam (1), the rear supporting leg telescopic cylinders (2.2) are respectively arranged below the beam ends at two sides of the rear supporting leg upper cross beam (2.1), the rear supporting leg telescopic cylinders (2.2) comprise an upper cylinder body and a lower cylinder body which are movably inserted, the upper cylinder body is connected with the rear supporting leg upper cross beam (2.1), the rear supporting leg lower cross beam (2.3) is connected between the two lower cylinder bodies, two ends of the rear supporting leg supporting oil cylinder (2.4) are respectively connected with the rear supporting leg upper cross beam (2.1) and the rear supporting leg lower cross beam (2.3), pin holes which are vertically arranged are arranged on the upper cylinder body and the lower cylinder body, and the pin holes of the upper cylinder body and the lower cylinder body are aligned with the rear pin shafts, the length of the rear supporting leg (2) is adjusted by adjusting the position of the pin shaft of the telescopic cylinder according to different working conditions.
4. The assembled bridge segment assembling continuous bridge erecting machine as claimed in claim 1, wherein: the middle supporting leg (3) comprises two branch supporting legs which are connected into a door-shaped support through a middle supporting leg cross beam (3.1);
the branch supporting legs comprise upper jacks (3.2), lower jacks (3.3), middle supporting leg telescopic cylinders (3.4), lifting jacks (3.5), rotating discs (3.6), transverse hydraulic cylinders (3.7), balance beams (3.8), longitudinal wheel boxes (3.9) and reverse hanging wheels (3.10);
the upper jack crossbeam (3.2) is vertical to the middle support leg crossbeam (3.1) and is arranged at the bottom of the middle support leg crossbeam (3.1), and the middle support leg telescopic cylinder (3.4) is arranged at the beam ends of the upper jack crossbeam (3.2) and the lower jack crossbeam (3.3); the middle support leg telescopic cylinder (3.4) comprises an upper cylinder body and a lower cylinder body which are movably inserted, the upper cylinder body is connected with the upper beam (3.2) of the jack, the lower cylinder body is connected with the lower beam (3.3) of the jack, and the lifting jack (3.5) is connected between the upper beam (3.2) of the jack and the lower beam (3.3) of the jack; the upper cylinder body and the lower cylinder body are provided with vertically arranged pin holes, pin shafts penetrate through the pin holes of the upper cylinder body and the lower cylinder body after being aligned, and the length of the middle supporting leg (3) is adjusted according to different working conditions by adjusting the pin shaft penetrating positions of the telescopic cylinders;
a rotating disc (3.6), a balance beam (3.8) and a longitudinal moving wheel box (3.9) are sequentially arranged on the beam top of the middle supporting leg beam (3.1) from bottom to top, a mortise at the bottom of the rotating disc (3.6) is clamped on a beam flange of the middle supporting leg beam (3.1), and a transverse moving hydraulic cylinder (3.7) is connected between the rotating disc (3.6) and the middle supporting leg beam (3.1); the longitudinal moving wheel box (3.9) is in contact with the lower chord track of the main beam (1) and enables the main beam (1) to move longitudinally through the rack, the side plate of the longitudinal moving wheel box is provided with a reverse hanging wheel (3.10), the reverse hanging wheel (3.10) is hooked on the flange of the lower chord track of the main beam (1), and the position of the middle supporting leg (3) is integrally moved through the reverse hanging wheel (3.10) and the rack.
5. The assembled bridge segment assembling continuous bridge erecting machine as claimed in claim 1, wherein: the main beam (1) is internally provided with a hanging beam (7), the hanging device (6) comprises an anchoring beam (6.1), a hanging rod (6.2) and a shoulder pole beam (6.3), a clamping device (6.4) which can translate along the length direction of the beam body through screw rod driving is arranged on the shoulder pole beam (6.3), the upper end of the hanging rod (6.2) penetrates through the hanging beam (7) and is provided with an anchorage device, the lower end of the hanging rod is connected with the clamping device (6.4) on the shoulder pole beam (6.3), the anchoring beam (6.1) and the shoulder pole beam (6.3) are vertically arranged at two beam ends at the bottom of the shoulder pole beam (6.3), and the anchoring beam (6.1) is used for being anchored with the bridge section.
6. The assembled bridge segment assembling continuous bridge erecting machine as claimed in claim 5, wherein: the lifting overhead crane (5) comprises a sliding trolley (5.1), a stretcher beam (5.2), a transverse hydraulic mechanism (5.3) and a lifting mechanism, wherein the stretcher beam (5.2) crosses two single beams (1.1) of the main beam (1) and is erected on the main beam (1) through the sliding trolleys (5.1) at two sides;
the hoisting mechanism is arranged on the stretcher beam (5.2), the hoisting mechanism comprises a winch (5.4), a pulley block (5.5), a steel wire rope and a lifting appliance, the steel wire rope led out from the winch (5.4) bypasses the pulley block (5.5), the lifting appliance is connected with the pulley block (5.5), and the traversing hydraulic mechanism (5.3) is connected between the hoisting mechanism and the stretcher beam (5.2);
the lifting appliance comprises a pulley block connecting beam (5.6), lifting columns (5.7) and a swinging cross beam (5.8), wherein the pulley block connecting beam (5.6) is connected with a pulley block (5.5), the lifting columns (5.7) are installed below the pulley block connecting beam (5.6) through a horizontal rotary joint, the swinging cross beam (5.8) is installed below the lifting columns (5.7) through a vertical rotary joint, two adjusting jacks (5.9) are arranged on the vertical surface of a beam body on one side of the swinging cross beam (5.8), two articulated arms (5.10) are arranged on the vertical surface of the beam body on the other side, and the free ends of the adjusting jacks (5.9) and the articulated arms (5.10) are connected with corresponding articulated lugs on the shoulder pole beam (6.3) through pin shafts.
7. The assembled bridge section assembling continuous beam bridging machine of claim 5, wherein: flanges (6.5) with sliding surfaces at the bottom surfaces are arranged on the beam body vertical surfaces at two sides of the shoulder pole beam (6.3), the flanges (6.5) on the beam body vertical surfaces at two sides are paired in pairs, clamps (6.4) are embraced on the shoulder pole beam (6.3), mortises at two sides are matched with the flanges (6.5), a screw rod penetrates through a screw hole of the shoulder pole beam (6.3), and the screw rod is supported on a bearing seat at the beam top of the shoulder pole beam (6.3).
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| CN202210863583.5A CN114934449A (en) | 2022-07-22 | 2022-07-22 | Assembled bridge segment assembling continuous beam bridge erecting machine |
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| CN202210863583.5A CN114934449A (en) | 2022-07-22 | 2022-07-22 | Assembled bridge segment assembling continuous beam bridge erecting machine |
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Cited By (1)
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