CN210561772U - Bridge girder erection machine for splicing wide beams - Google Patents

Bridge girder erection machine for splicing wide beams Download PDF

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Publication number
CN210561772U
CN210561772U CN201920627608.5U CN201920627608U CN210561772U CN 210561772 U CN210561772 U CN 210561772U CN 201920627608 U CN201920627608 U CN 201920627608U CN 210561772 U CN210561772 U CN 210561772U
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China
Prior art keywords
girder
upright post
erection machine
pier top
wide
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CN201920627608.5U
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Inventor
张志华
吴国梅
陈德利
代宇
孙龙
王琪
宫占斌
祁磊
张艳丽
田凤学
卫森
崔瑞玲
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Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
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Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
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Abstract

The utility model relates to an piece together wide beam bridging machine for the construction of the thread case roof beam that has erect the piece together wide beam that finishes, the mound top frame include the pier top crossbeam of two parallels, connect through two tie beams between the pier top crossbeam, every pier top crossbeam has set up two stands one, two stands two, two stands one set up between two stands two, a stand lower part sets up stand one and supports hydro-cylinder, walk the running gear, two stand lower parts set up two stand support hydro-cylinders, stand one be used for supporting at thread case roof beam web position, stand two are used for supporting the pier position at piece together wide beam, cross moving mechanism sets up between longeron and pier top crossbeam. The utility model provides a bridge girder erection machine has pier top frame and adopts symmetrical structure, complete machine advantage such as via hole, that efficiency of construction is high, safety and stability is good by oneself, need not auxiliary facilities and can accomplish the erection of piecing together wide case roof beam.

Description

Bridge girder erection machine for splicing wide beams
Technical Field
The utility model relates to a bridge construction field especially relates to a piece together wide beam bridging machine.
Background
Bridge construction is an important content of modern basic traffic construction, and a bridge girder erection machine is a main device for bridge construction. The ramp construction of the entrance and exit of the expressway/viaduct for widening the original bridge generally uses a split-width beam structure, namely, a split-width beam pier is arranged beside the original main line box beam, and then split-width beams formed by splicing precast beams are erected on the split-width beam pier.
The erection of the existing spliced wide beam is generally carried out in a mode of pier top transverse movement, and the method is characterized in that a spliced wide beam pier and a main line pier are integrated, sufficient space is reserved between the top of the pier and the lower part of a concrete beam for arranging a transverse beam device, and the main line box beam can be erected only after a ramp beam is erected, so that the erection period of the main line box beam is influenced; or the conventional bridge girder erection machine is utilized to enable the bridge girder erection machine to transversely move to the side pier, but for the bridge girder erection machine with large tonnage and large span, the load acting on the pier is too large, so that the friction type pier can sink under large acting force, and even the pier can tilt and other damages can occur.
Although chinese utility model patent publication CN208501523U discloses "a novel bridge girder erection machine for erecting and piece together wide beam", this type of bridge girder erection machine has few support points, a higher center of gravity, a complex structure, and the process design is unreasonable, piece together the roof beam efficiency lower, can not satisfy the requirement of large-tonnage well piece together wide beam construction.
Therefore, the bridge girder erection machine with the spliced wide girder and the corresponding construction method which are high in construction efficiency, stable in construction process and convenient for hole passing are lacked in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wide roof beam frame bridge crane and construction method are pieced together to current construction method that efficiency of construction is high, the work progress is stable, and be convenient for the via hole.
In order to achieve the above object, the utility model adopts the following technical scheme:
a bridge girder erection machine for splicing wide girders is used for construction of spliced wide girders after a main girder box girder is erected, the spliced wide girders are positioned on two sides of the main girder box girder and comprise a plurality of spliced wide girder sections, each spliced wide girder section comprises one or more than two spliced wide girder sections which are parallel, and each spliced wide girder section comprises a pier top frame, a longitudinal girder, a traversing mechanism, a lifting mechanism, a hydraulic device and a remote control device, and the bridge girder erection machine is characterized in that the pier top frame comprises two parallel pier top cross beams which are connected through two connecting beams, two first stand columns and two second stand columns are arranged below each pier top cross beam, the first stand columns are arranged between the two second stand columns, a first stand column supporting oil cylinder and a travelling stand column supporting oil cylinder are arranged on the lower portions of the first stand columns, the first stand columns are used for supporting at web positions of the main girder box girder, the second stand columns are used for supporting pier positions of the spliced wide girder, the transverse moving mechanism is arranged between the longitudinal beam and the pier top cross beam.
In order to better realize the utility model discloses, hoisting mechanism sets up on the longeron, and hoisting device lifts by crane the overhead traveling crane before containing, after, and preceding, back lift by crane the overhead traveling crane and be hoisting device, and hydraulic means provides power for each hydro-cylinder, and remote control device passes through wireless or communication cable control hydraulic means, running gear, sideslip device and plays to rise the device.
Specifically, in order to enhance the stability of the first stand column, a first stand column bottom beam is arranged at the lower part of the first stand column, and a travelling mechanism and a first stand column supporting oil cylinder are arranged at two ends of the first stand column bottom beam.
Specifically, in order to protect the beam surface of the erected spliced wide beam, the lower part of the second upright post supporting oil cylinder is provided with a second upright post beam surface distribution beam.
Furthermore, a bottom beam of the upright post is vertical to the pier top cross beam.
Specifically, the front and rear hoisting crown blocks of the bridge girder erection machine can longitudinally move on the longitudinal beam.
Compared with the prior art, the utility model following beneficial effect has:
1) the pier top frame adopts a symmetrical structure, and can be used for splicing wide beams on two sides of the main beam box without turning the direction;
2) the first upright post provides eight supporting points acting on the main line box girder, the second upright post provides four supporting points acting on the width splicing girder, the supporting points are multiple, the stress is more uniform, the supporting structure is more reasonable, and the overall stability is good;
3) the first upright post is provided with a traveling wheel box and a driving mechanism, so that holes can be automatically formed, and the construction efficiency is high;
4) the remote control device is arranged, so that the construction process can be completed more safely and accurately;
4) a beam surface distribution beam is added below the second upright post, and the second upright post can be supported on the web plate of the width spliced beam;
5) when the whole machine is erected with the variable span box girder, the front and rear skyscrapers move to the lifting position of the variable span box girder, and then the erection of the variable span box girder can be completed;
6) the bridge girder erection machine has a simpler overall structure and low manufacturing and maintenance costs;
drawings
FIG. 1 is a front view of the main structure of the bridge girder erection machine for erecting the spliced wide beam of the present invention;
FIG. 2 is a left side view of the bridge girder erection machine for erecting the spliced wide girder of the present invention;
fig. 3 is a top view of the pier top frame of the present invention;
fig. 4 is a front view of the middle bridge girder erection machine of the utility model for variable span erection.
Detailed Description
A piece together wide roof beam bridging machine, belong to bridge construction equipment, the construction of piecing together wide roof beam of the ramp of the original bridge of specially adapted expansion, highway/overpass access & exit, the structure of piecing together wide roof beam generally is shown as 7 in figure 2, it erects in the both sides of thread case roof beam 6, piece together wide roof beam and contain a plurality of wide roof beam festivals of piecing together, each piece together wide roof beam festival and contains one or two above pieces side by side pieces together wide case roof beam each. The present invention will be further explained with reference to the drawings of the present invention. It is to be noted that, as used herein, the term "longitudinal" refers to the length direction of the bridge, "transverse" refers to the direction perpendicular to the length direction of the bridge in the horizontal plane, "front" refers to the direction in which the bridge girder erection machine advances in the "longitudinal direction," and "rear" refers to another direction in the "longitudinal direction" relative to the "rear".
As shown in figure 1, a piece together wide beam bridging machine, in order to show the primary structure of bridging machine, this figure has left out the stand two in the bridging machine outside, the piece together wide beam/pier isotructure in the thread case roof beam outside, including mound top frame 1, longeron 2, sideslip mechanism 3, hoisting mechanism 4, hydraulic means and remote control device. As shown in fig. 3, the pier top frame 1 comprises two parallel pier top beams 1c, the pier top beams 1c are connected through two connecting beams 1d, and four beams form a quadrilateral frame structure; two upright posts I1 a and two upright posts II 1b are arranged below each pier top beam 1c, the two upright posts I1 a are arranged between the two upright posts II 1b, as shown in the arrangement of figure 2, the pier top frame 1 is integrally of a symmetrical structure, and can be used for erecting the width splicing beams 7 on the two sides of the main beam box 6 without turning the direction.
The lower part of the first upright post 1a is provided with a first upright post supporting oil cylinder 1e and a traveling mechanism 1f, the lower part of the second upright post 1b is provided with a second upright post supporting oil cylinder 1g, the first upright post 1a is used for supporting at the position of a web plate of the main line box girder 6, and the second upright post is used for supporting at the position of a pier of the wide splicing girder 7; preferably, the lower part of the first upright post 1a is provided with a first upright post bottom beam, and two ends of the first upright post bottom beam are provided with a travelling mechanism and a first upright post supporting oil cylinder. Based on the structure, the first upright post provides eight supporting points acting on the main line box girder, the second upright post provides four supporting points acting on the width splicing girder, the supporting points are multiple, the stress is more uniform, the supporting structure is more reasonable, and the overall stability is good; and the first upright post is provided with a traveling wheel box and a driving mechanism, so that holes can be automatically formed, and the construction efficiency is high.
The front hoisting crown block and the rear hoisting crown block are both hoisting devices, the hydraulic device provides power for each oil cylinder, and the remote control device controls the hydraulic device, the walking device, the transverse moving device and the hoisting device through wireless or communication cables.
The transverse moving mechanism 3 is arranged between the longitudinal beam and the pier top cross beam, and comprises a front mechanism and a rear mechanism, wherein each mechanism comprises a pulley arranged on the longitudinal beam and a rail arranged on the pier top cross beam and is used for driving the longitudinal beam to transversely move on the pier top frame so as to convey the split beam from the lifting beam position to the position above the split beam pier; the hoisting mechanism is arranged on the longitudinal beam, the hoisting device comprises a front hoisting crown block and a rear hoisting crown block, and the structures of the front hoisting crown block and the rear hoisting crown block belong to the conventional technology in the field.
Preferably, the lower part of the second upright post supporting oil cylinder 1g is provided with a second upright post beam surface distribution beam 1h, so that the second upright post can be supported at the pier position of the spliced wide beam 7 and on the erected spliced wide beam web, the stress is more uniform, and the erected spliced wide beam web cannot be damaged.
In order to facilitate the whole bridge girder erection machine to longitudinally walk along the main box girder, the first bottom beam of the upright post is vertical to the pier top cross beam, namely parallel to the longitudinal direction of the main box girder 6.
Preferably, in order to meet the requirement of erecting the variable-span widening beam, the front and rear hoisting crown blocks of the bridge girder erection machine can longitudinally move on the longitudinal beam to adapt to the widening beam sections with different spans, and as shown in fig. 4, the front and rear hoisting crown blocks can be used for hoisting and erecting the widening beams with different spans by adjusting different distances between the front and rear crown blocks.
Furthermore, a piece together wide beam bridging machine still include electric operating system, hydraulic system, all adopt existing mature technique.
It is right through the above-mentioned detailed description can learn, a piece together wide roof beam frame bridge crane have advantages such as symmetrical structure, complete machine via hole by oneself, the efficiency of construction is high, safety and stability is good, need not auxiliary facilities and can accomplish the erection of piecing together wide case roof beam.
Utilize wide roof beam bridging machine of piecing together, can accomplish the construction of piecing together wide roof beam more efficiently, piece together wide roof beam and be located thread case roof beam both sides, contain and piece together wide roof beam P1, P2, P3 … … PN festival, each piece together wide roof beam festival and contain one or two above pieces together wide case roof beams of piecing together, specific construction method contains following step:
1) the remote control bridge girder erection machine walks to the position where the spliced wide beam P1 section needs to be erected;
2) the first upright post supporting oil cylinder 1e extends, a travelling mechanism of the bridge girder erection machine is empty, the first upright post 1a is supported on a main line box girder web plate through the first upright post supporting oil cylinder 1e, the second upright post supporting oil cylinder 1g extends out, and the second upright post 1b is supported at the position of a bridge pier of the spliced wide girder;
3) the beam transporting vehicle transports the prefabricated spliced wide box girder to a lifting beam position below the bridge girder erection machine, a crown block lifting tool is installed, a front lifting crown block and a rear lifting crown block synchronously lift and lift the spliced wide box girder, and the beam transporting vehicle is withdrawn and loads another spliced wide box girder;
4) the lifting device moves transversely, the spliced wide box girder is conveyed to the position above the girder falling position, the front lifting crown block and the rear lifting crown block descend, and the spliced wide box girder is placed on a bridge pier of the spliced wide girder;
5) when the width splicing beam section only comprises one width splicing box beam, executing the step 6);
when the width-spliced beam section comprises more than two parallel width-spliced box girders, the front and rear hoisting crown blocks are lifted and transversely moved to the position of the lifting beam, and the steps 3) -5) are repeatedly executed until the width-spliced beam section is erected, and the step 6) is executed;
6) and (3) recovering a supporting oil cylinder of the upright post I, supporting the upright post I1 a on a main line box girder web plate by a walking mechanism, recovering a supporting oil cylinder of the upright post II, emptying the upright post II, walking the bridge girder erection machine to a position where a next spliced wide girder section needs to be erected, and repeating the steps 2-6), thereby completing erection of the residual spliced wide girder sections P2 and P3 … … PN in sequence.
Further, as for step 2), when the split beam sections P2 and P3 … … PN are erected, the second upright post on at least the rear side of the pier top frame is supported on the erected split box girder at the position of the pier of the split beam.
Furthermore, the lower part of the second upright post supporting oil cylinder is provided with a second upright post beam surface distribution beam, and when erecting the splicing width beam sections P2 and P3 … … PN, the second upright post can be supported on the erected splicing width box beam through the second upright post beam surface distribution beam.
Frame bridge crane's frame roof beam process, according to the equipment configuration of fortune frame separation, be responsible for fortune roof beam, feed the roof beam by fortune roof beam car, frame bridge crane accomplishes the installation of prefabricated case roof beam under the cooperation of fortune roof beam car on the frame roof beam station, complete machine working process as follows:
the sequence is as follows: in the initial state of girder erection, the bridge girder erection machine is supported at the web position of the main line box girder by the supporting oil cylinders (total 8) of the first upright column and supported on the bridge pier of the wide spliced girder by the supporting oil cylinders (total 4) of the second upright column; the girder transporting vehicle transports the box girder to the girder lifting position of the bridge girder erection machine, a crane hoist is installed, and the prefabricated box girder is lifted to a certain height; and synchronously and transversely moving the prefabricated box girder to the upper part of the support by the front and the rear crown blocks, and finally synchronously falling the girder in place to complete the erection of the span prefabricated box girder. The erection of the span of the remaining precast box girders is accomplished according to the same steps as before.
The process of the via hole of the bridge girder erection machine adopts the whole machine to automatically pass the via hole, and does not need other auxiliary equipment to complete. The sequence is as follows: after the precast box girder of the first-span bridge is erected, the supporting oil cylinder of the upright post is contracted, the traveling wheel box at the lower part of the upright post is supported on the track, the supporting oil cylinder at the lower part of the upright post is retracted to be empty, and the traveling mechanism of the upright post drives the whole machine to move forwards for one hole.
Adopt construction method, the erection, prefabrication, the transport of piecing together wide roof beam can go on simultaneously, the efficiency of construction is high, the time limit for a project is short.
Technical personnel in the field adopt a piece together wide roof beam frame bridge crane, can utilize equipment self function and assist the utensil under the condition that does not need any auxiliary facilities, carry out the building site and shift, erect each pore box roof beam around this roof beam section, can improve the efficiency of construction, shorten construction cycle, reduce construction cost to a great extent, all have better adaptability to various bridge constructions, have good market perspective.

Claims (6)

1. A bridge girder erection machine for splicing wide girders is used for construction of spliced wide girders after a main girder box girder is erected, the spliced wide girders are positioned on two sides of the main girder box girder and comprise a plurality of spliced wide girder sections, each spliced wide girder section comprises one or more than two spliced wide girder sections which are parallel, and each spliced wide girder section comprises a pier top frame, a longitudinal girder, a traversing mechanism, a lifting mechanism, a hydraulic device and a remote control device, and the bridge girder erection machine is characterized in that the pier top frame comprises two parallel pier top cross beams which are connected through two connecting beams, two first stand columns and two second stand columns are arranged below each pier top cross beam, the first stand columns are arranged between the two second stand columns, a first stand column supporting oil cylinder and a travelling stand column supporting oil cylinder are arranged on the lower portions of the first stand columns, the first stand columns are used for supporting at web positions of the main girder box girder, the second stand columns are used for supporting pier positions of the spliced wide girder, the transverse moving mechanism is arranged between the longitudinal beam and the pier top cross beam.
2. The bridge girder erection machine of claim 1, wherein: the lifting mechanism is arranged on the longitudinal beam, the lifting device comprises a front lifting crown block and a rear lifting crown block, the front lifting crown block and the rear lifting crown block are hoisting devices, the hydraulic device provides power for each oil cylinder, and the remote control device controls the hydraulic device, the walking device, the transverse moving device and the lifting device through wireless or communication cables.
3. The bridge girder erection machine of claim 2, wherein: the lower part of the first upright post is provided with a first upright post bottom beam, and two ends of the first upright post bottom beam are provided with a travelling mechanism and a first upright post supporting oil cylinder.
4. The bridge girder erection machine of claim 3, wherein: and the lower part of the second upright post supporting oil cylinder is provided with a second upright post beam surface distribution beam.
5. The bridge girder erection machine of claim 2, wherein: the first bottom beam of the upright post is vertical to the pier top cross beam.
6. The width beam splicing bridge girder erection machine according to any one of claims 2 to 5, wherein: the front and rear hoisting crown blocks of the bridge girder erection machine can longitudinally move on the longitudinal beam.
CN201920627608.5U 2019-05-05 2019-05-05 Bridge girder erection machine for splicing wide beams Active CN210561772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920627608.5U CN210561772U (en) 2019-05-05 2019-05-05 Bridge girder erection machine for splicing wide beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920627608.5U CN210561772U (en) 2019-05-05 2019-05-05 Bridge girder erection machine for splicing wide beams

Publications (1)

Publication Number Publication Date
CN210561772U true CN210561772U (en) 2020-05-19

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ID=70675023

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920627608.5U Active CN210561772U (en) 2019-05-05 2019-05-05 Bridge girder erection machine for splicing wide beams

Country Status (1)

Country Link
CN (1) CN210561772U (en)

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