CN202989784U - Section-assembling bridge erecting machine applicable to erection of bridge girders with small curve radii - Google Patents

Section-assembling bridge erecting machine applicable to erection of bridge girders with small curve radii Download PDF

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Publication number
CN202989784U
CN202989784U CN 201220742304 CN201220742304U CN202989784U CN 202989784 U CN202989784 U CN 202989784U CN 201220742304 CN201220742304 CN 201220742304 CN 201220742304 U CN201220742304 U CN 201220742304U CN 202989784 U CN202989784 U CN 202989784U
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CN
China
Prior art keywords
supporting leg
travelling crane
overhead travelling
hoisting overhead
transverse
Prior art date
Application number
CN 201220742304
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Chinese (zh)
Inventor
向友仁
张旭东
唐达昆
王鹏
韩阁
孔凡华
李青
李伟奇
王星
Original Assignee
中铁十一局集团有限公司
中铁十一局集团第六工程有限公司
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Application filed by 中铁十一局集团有限公司, 中铁十一局集团第六工程有限公司 filed Critical 中铁十一局集团有限公司
Priority to CN 201220742304 priority Critical patent/CN202989784U/en
Application granted granted Critical
Publication of CN202989784U publication Critical patent/CN202989784U/en

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Abstract

Disclosed is a section-assembling bridge erecting machine applicable to erection of bridge girders with small curve radii. A main girder assembly (1) is in a single truss structure; a NO.1 middle support leg and a NO.2 middle support leg are identical in structure, each of middle support legs comprises a middle support leg side-sway mechanism, two ends of a middle support leg side-sway oil cylinder are connected with a connection beam and a middle support leg lower beam through pins respectively, and the middle support leg lower beam is a plurality modular structures capable of being assembled transversely; and rotary pins are welded at tops of middle support leg rotary table lower beams, and middle support leg rotary table upper beams are rotatably sleeved on the rotary pins. According to the section-assembling bridge erecting machine, stable and accurate side-sway can be performed through hydraulic push, bridges with small curve radii can be erected rapidly, conveniently and accurately, and curve girder sections can be aligned accurately. The main girder can be swung, curve hole penetrating of the bridge erecting machine can be achieved during 190-meter curve radii construction, the bridge erecting machine is adaptable to construction of mountains complicated in terrain, and for municipal construction of developed cities, the machine is small in required space and small in effect on prior structure accordingly.

Description

Be applicable to the Segmental assembling bridge-erecting machine of minimal curve radius bridge erection
Technical field
The present invention relates to bridgework machinery, is a kind of Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius specifically.
Background technology
Bridge Erector is comprised of girder assembly, braced structures, hoisting overhead travelling crane and traversing jib lubbing mechanism four major parts.Its middle girder assembly comprises girder and nose girder two parts, is the main load bearing component of Bridge Erector, and nose girder is forward and backward to be arranged symmetrically with.Braced structures comprises forward and backward supporting leg and four parts of middle supporting leg, and the service load of Bridge Erector passes to bridge construction by supporting leg.
The common state of setting a roof beam in place is: railway bridge sets up and is first high-order section assembling, the rear integral body beam mode of setting a roof beam in place in place that falls that hangs, and two middle supporting leg support girder assemblies are mentioned successively girder segment by a trolley and carried out contraposition, splicing, stretch-draw, the integral body beam that falls.The via hole state: trolley is positioned at girder assembly rear end as counterweight, middle supporting leg vertical shift oil cylinder pushing tow makes the girder reach, before front leg strut arrives, square pier pushes up and supports, in No. one, supporting leg is advanced to the top installation of front square pier, the front leg strut that comes to nothing, again the vertical shift horn to the horn afterbody near supporting leg in No. two, auxiliary supporting leg after supporting, in No. two, supporting leg is placed in No. one after supporting leg on bridge floor voluntarily, and vertical shift crane ' s major girder assembly puts in place again.Yet, when curved section is set a roof beam in place, Bridge Erector wait to build bridge across, girder assembly transverse center can (be decided according to the sweep size to extra curvature side shifting certain distance with treating frame one width bridge center line, can mobile 650mm for 190 meters curves, transverse load can be reduced so inhomogeneous), owing to becoming arrangement of curves for curved section case beam, begin to compare with the Bridge Erector center line to each section box girder center line of span centre direction from bridge pier, progressively be partial to outside curve, for this situation of curved section construction, common Bridge Erector can't satisfy and sets up requirement.Due to the skew of sections piece center line in curved section, and the hoisting overhead travelling crane of Bridge Erector is difficult to horizontal contraposition on fixing track.
Summary of the invention
Technical problem to be solved by this invention is for the problems referred to above, a kind of Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius is provided, the multiple plate that not only can realize bridge is traversing setting up once, can also realize that girder swings, Bridge Erector curve via holes when realizing 190 meters sweep constructions.
the described Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius, comprise girder assembly, front leg strut, auxiliary supporting leg, supporting leg in supporting leg in No., No. two, hoisting overhead travelling crane, in hang, hydraulic system, electrical system, it is characterized in that: described girder assembly is single truss linear structure, in described No. one in supporting leg or No. two leg structure identical, in each, supporting leg comprises middle supporting leg inner prop, middle supporting leg rotating disk top rail, middle supporting leg rotating disk lower transverse beam, middle supporting leg supporting traverse, middle supporting leg connecting cross beam, middle supporting leg lower transverse beam, middle supporting leg vertical shift mechanism, middle supporting leg transverse-moving mechanism, described middle supporting leg transverse-moving mechanism is provided with middle supporting leg sideslip oil cylinder, the two ends of described middle supporting leg sideslip oil cylinder respectively by pin and described middle supporting leg connecting cross beam be connected middle supporting leg lower transverse beam and be connected, described middle supporting leg connecting cross beam is slidably connected by set traversing chute and the lower transverse beam in middle supporting leg lower transverse beam top, described middle supporting leg lower transverse beam be can a plurality of horizontal assembly units modular construction, top, the middle part welding of described middle supporting leg rotating disk lower transverse beam is shipped and resell on another market, and described middle supporting leg rotating disk top rail turning set is connected on described shipping and reselling on another market.
Described hoisting overhead travelling crane, comprise hoisting overhead travelling crane running mechanism, hoisting overhead travelling crane brakes, hoisting system, hoisting overhead travelling crane hydraulic system, hoisting overhead travelling crane control system, hoisting overhead travelling crane crossing system, described hoisting overhead travelling crane crossing system comprises that being located at hoisting overhead travelling crane walks the traversing vehicle frame of hoisting overhead travelling crane, hoisting overhead travelling crane sideslip oil cylinder on driving frame, and the two ends of described hoisting overhead travelling crane sideslip oil cylinder are individually fixed in hoisting overhead travelling crane and walk on driving frame and the traversing vehicle frame of hoisting overhead travelling crane.
Described hoisting overhead travelling crane is walked driving frame and is provided with two pairs of hoisting overhead travelling crane travelling wheels, and each hoisting overhead travelling crane travelling wheel is provided with the travelling wheel drive unit of band brake system.
Walk between driving frame and the traversing vehicle frame of hoisting overhead travelling crane to be provided with the traversing slide plate of hoisting overhead travelling crane at described hoisting overhead travelling crane; Described hoisting system is arranged on the traversing vehicle frame of hoisting overhead travelling crane, is installed with the hoisting overhead travelling crane hoist engine with lifting travelling overhead crane winding machine brakes on the traversing vehicle frame of described hoisting overhead travelling crane.
Described middle supporting leg rotating disk lower transverse beam and middle supporting leg supporting traverse all are socketed on outside described middle supporting leg inner prop, be provided with middle height of landing leg and regulate oil cylinder between middle supporting leg rotating disk lower transverse beam and middle supporting leg supporting traverse, the two ends that described middle height of landing leg is regulated oil cylinder respectively with middle supporting leg rotating disk lower transverse beam be connected the supporting leg supporting traverse and be connected.
The Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius of the present invention, having solved it can not be in the vertical traversing problem of rail, capable steadily accurately traversing through the hydraulic thrust shift-in, thereby can build bridge at curve, especially realize quick, convenient, accurate construction in the bridge formation process of small curve radius, accurate contraposition camber beam body section.Can realize that girder swings, Bridge Erector curve via holes when realizing 190 meters sweep constructions, the smallest curve radius that the Bridge Erector construction before greatly having broken through is 350 meters more adapts at mountain construction with a varied topography.Adopt single truss-like 2 across half long girder assembly and four supporting leg systems; Complete machine structure is simple, and is lightweight, easy to operate.The girder assembly is freely supported structure at via hole and the operating mode of setting a roof beam in place, and is stressed clear and definite, safe.Hoisting overhead travelling crane is traversing, is convenient to sections piece exactitude position, and girder list truss linear structure is easy to realize the sharp radius curve erection.Via hole adopts the oil cylinder pushing tow, and good stability, to adapt to the longitudinal gradient ability strong, and branched leg is had bad luck, and need not to lay the bridge floor track, and continuity is good, and is convenient and swift, and efficiency of construction is high.Middle supporting leg adopts modularized design, laterally can carry out the various modes combination, satisfies various forms bridge pier installation requirement, adapts to the one-time continuous erection construction of several bridge floors.Change in location between crane ' s major girder and 3 main supporting legs can conveniently adapt to and becomes across construction.Across construction, be convenient to adopt the falsework mode for 56.5 meters, increase falsework and can effectively reduce the Bridge Erector dead load.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention,
Fig. 2 is middle leg structure front view,
Fig. 3 is the left view of Fig. 2,
Fig. 4 is the middle supporting leg modular construction schematic diagram in the construction of many piers multispan breadth,
Fig. 5 is hoisting overhead travelling crane structural representation front view,
Fig. 6 is the left view of Fig. 5.
in figure: 1-girder assembly, 2-assists supporting leg, supporting leg in No. two, 3-, 4-hangs, the 5-hoisting overhead travelling crane, the 6-end is hung, supporting leg in No. one, 7-, the 8-front leg strut, the 9-electrical system, the 10-hydraulic system, supporting leg inner prop in 11-, supporting leg rotating disk top rail in 12-, supporting leg rotating disk lower transverse beam in 13-, supporting leg supporting traverse in 14-, supporting leg connecting cross beam in 15-, supporting leg lower transverse beam in 16-, 17-middle supporting leg spiral regulating device, 18-middle supporting leg sideslip oil cylinder, 19-middle height of landing leg is regulated oil cylinder, 20-middle supporting leg vertical shift mechanism, 21-middle supporting leg working platform, 22-ship and resell on another market, 23-hoisting overhead travelling crane hoist engine, 24-hoisting overhead travelling crane hoist engine brakes, the traversing vehicle frame of 25-hoisting overhead travelling crane, the traversing slide plate of 26-hoisting overhead travelling crane, 27-hoisting overhead travelling crane is walked driving frame, 28-hoisting overhead travelling crane sideslip oil cylinder, 29-hoisting overhead travelling crane hook plate, 30-hoisting overhead travelling crane travelling wheel, 31-hoisting overhead travelling crane travelling wheel drive unit.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing: as shown in Figure 1, the described Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius, comprise girder assembly 1, front leg strut 8, auxiliary supporting leg 2, supporting leg 3 in supporting leg 7 in No., No. two, hoisting overhead travelling crane 5, in hang 4, hydraulic system 10, electrical system 9, described girder assembly 1 is simple in structure, lightweight mono-spar structure, is convenient to the revolution of small radius.as Fig. 2, shown in 3, in described No. one in supporting leg 7 or No. two supporting leg 3 comprise middle supporting leg inner prop 11, middle supporting leg rotating disk top rail 12, middle supporting leg rotating disk lower transverse beam 13, middle supporting leg supporting traverse 14, middle supporting leg connecting cross beam 15, middle supporting leg lower transverse beam 16, middle supporting leg vertical shift mechanism 20, middle supporting leg transverse-moving mechanism, described middle supporting leg transverse-moving mechanism is provided with middle supporting leg sideslip oil cylinder 18, the two ends of described middle supporting leg sideslip oil cylinder 18 respectively by pin and described middle supporting leg connecting cross beam 15 be connected middle supporting leg lower transverse beam 16 and be connected, described middle supporting leg connecting cross beam 15 is slidably connected by set traversing chute and the lower transverse beam in middle supporting leg lower transverse beam 16 tops.
As shown in Figure 4, described middle supporting leg lower transverse beam 16 be can a plurality of horizontal assembly units modular construction.Bridge Erector may be encountered the situation of single pier stud when building a bridge, also may encounter the situation of a plurality of pier studs, so just needs the requirement of these operating modes of bridge formation functional adaptation, can set up single pier and also can set up many piers.The quantity that increases crossbeam is decided by actual condition, and what need to increase just can increase what.Be bolted between the middle supporting leg lower transverse beam of middle supporting leg lower transverse beam and increase, by installing or remove how much dismounting lower transverse beams of bolt, specifically how make up according to field working conditions specified.The place that needs increase crossbeam use crane will increase in the supporting leg lower transverse beam be lifted into Dun Ding, be connected with original middle supporting leg lower transverse beam, Bridge Erector is traversing getting final product on the supporting leg lower transverse beam therefrom.By middle supporting leg lower transverse beam and the transverse-moving mechanism of setting up, the transformation connecting cross beam, in realization, the horizontal luffing of supporting leg moves.Described middle supporting leg lower transverse beam has adopted modular construction, can be according to the span of horizontal breadth, splice flexibly the length of lower transverse beam, according to the required breadth width splicing lower transverse beam that sets up, the traversing of middle supporting leg realize by middle supporting leg sideslip oil cylinder 18, and described middle supporting leg sideslip oil cylinder 18 is connected by pin with modular middle supporting leg lower transverse beam 16.The pin hole that in foundation, supporting leg sideslip oil cylinder 18 strokes arrange is arranged on middle supporting leg lower transverse beam 16.there is connecting lug at middle supporting leg sideslip oil cylinder 18 two ends, on the middle supporting leg connecting cross beam 15 that one end is fixed in the above, one end is fixed on middle supporting leg lower transverse beam 16, set up middle supporting leg sideslip oil cylinder 18 at the state that reclaims fully, pull out the pin that is connected on middle supporting leg lower transverse beam 16, oil cylinder stretches out, pin is plugged during the pin hole of supporting leg lower transverse beam 16 in the next one, it is traversing that oil cylinder reclaims the top structure of connecting cross beam drive, after treating that supporting leg sideslip oil cylinder 18 strokes are covered, the bearing pin of middle supporting leg lower transverse beam 16 ends is taken out, the piston end of middle supporting leg sideslip oil cylinder 18 reaches next pin hole place and plugs pin, realize and so forth the always traversing of Bridge Erector, as long as how long middle supporting leg lower transverse beam 16 has, Bridge Erector just can be how long traversing.
As shown in Figure 2, the top, middle part of described middle supporting leg rotating disk lower transverse beam 13 welding ships and resell on another market 22, and described middle supporting leg rotating disk top rail 12 turning sets are connected to described shipping and reselling on another market on 22.Middle supporting leg rotating disk top rail 12 by ship and resell on another market 22 can relative in supporting leg rotating disk lower transverse beam 13 rotate.Drive the girder assembly 1 that supports and rotate, be applied to the operating mode that bridge need to turn to.For setting up of small curve radius bridge, prior art adopts the method for " hard " the setting up of accommodation curve bridge of taking your time, adopt the rotating mechanism of this programme, the curved bridge section can be rotated installation, simultaneously, can carry out as required lateral shift, setting up of bridge section can once be adjusted to the right place, the Bridge Erector problem in place when preferably resolving little curve and setting up.
As shown in Fig. 5,6, described hoisting overhead travelling crane 5, comprise hoisting overhead travelling crane running mechanism, hoisting overhead travelling crane brakes, hoisting system, hoisting overhead travelling crane hydraulic system, hoisting overhead travelling crane control system, hoisting overhead travelling crane crossing system, described hoisting overhead travelling crane crossing system comprises that being located at hoisting overhead travelling crane walks the traversing vehicle frame 25 of hoisting overhead travelling crane, hoisting overhead travelling crane sideslip oil cylinder 28 on driving frame 27, and the two ends of described hoisting overhead travelling crane sideslip oil cylinder 28 are individually fixed in hoisting overhead travelling crane and walk on driving frame 27 and the traversing vehicle frame 25 of hoisting overhead travelling crane.Hoisting overhead travelling crane sideslip oil cylinder 28 is provided with two, produces to be not less than the thrust of 6 tons.Hoisting overhead travelling crane sideslip oil cylinder 28 is subjected to the control of Bridge Erector hydraulic system, can remote control, and the lateral attitude intense adjustment.Traversing platform can be taken suspender walking the traversing of realization ± 200mm on driving frame 5, to realize the horizontal contraposition of beam body by oil cylinder.Pumping plant of separate unit hoisting overhead travelling crane configuration is positioned on traversing platform, and this pumping plant is controlled two identical oil cylinders, and the oil cylinder pulling force is not less than 6t, stroke 500mm.
As shown in Fig. 5,6, described hoisting overhead travelling crane is walked driving frame 27 and is provided with two pairs of hoisting overhead travelling crane travelling wheels 30, and each hoisting overhead travelling crane travelling wheel 30 is provided with the travelling wheel drive unit 31 of band brake system.
As shown in Figure 5, walk between driving frame 27 and the traversing vehicle frame 25 of hoisting overhead travelling crane to be provided with the traversing slide plate 26 of hoisting overhead travelling crane at described hoisting overhead travelling crane; Described hoisting system is arranged on the traversing vehicle frame 25 of hoisting overhead travelling crane, is installed with the hoisting overhead travelling crane hoist engine 23 with lifting travelling overhead crane winding machine brakes 24 on the traversing vehicle frame 25 of described hoisting overhead travelling crane.Hoisting system is by hoist engine, wire rope, directive wheel, fixed pulley group, running block, suspender, load limiter, and height limitator etc. partly form.1 hoist engine of hoisting overhead travelling crane configuration.Press the 20M lifting altitude; Reel configuration spiral drum slot, hoist engine configuration high-speed, low speed dual brakes system system, speed end adopts piece formula liquid braking device, and the low speed end adopts band brake; And dispose overspeed switch and the safety measure such as highly spacing.Suspender can 360 ° of revolutions.
Described hoisting system is arranged on the traversing vehicle frame 25 of hoisting overhead travelling crane, and is wherein, fixing with the traversing vehicle frame 25 of hoisting overhead travelling crane hoist engine 23 and the hoisting overhead travelling crane of hoisting overhead travelling crane hoist engine brakes 24.Hoisting system can move laterally along with the traversing vehicle frame 25 of hoisting overhead travelling crane, and in construction, the beam body section that is lifted by hoisting system moves laterally thereupon, so that accurately assembly unit.
As Fig. 5, described hoisting overhead travelling crane is walked and is fixed with the hoisting overhead travelling crane hook plate 29 that prevents traversing vehicle frame 25 rollovers of hoisting overhead travelling crane on driving frame 27.
Described hoisting overhead travelling crane is walked driving frame 27 and is provided with two pairs of hoisting overhead travelling crane travelling wheels 30, and each hoisting overhead travelling crane travelling wheel 30 is provided with the hoisting overhead travelling crane travelling wheel drive unit 31 with brakes.Hoisting overhead travelling crane travelling wheel 30 vertical shift on girder assembly top track, travelling wheel is connected with four supporting legs that hoisting overhead travelling crane is walked driving frame 27, and the junction arranges Plane Rotation mechanism, so that realize can be by the knuckle of leading beam junction.Four travelling wheels are all to drive, and are provided with simultaneously special brakes, to guarantee car not occur slipping on 4% the gradient.Hoisting overhead travelling crane disposes platform, railing, bolt and repaiies the safety prevention measures such as passage.Hoisting overhead travelling crane is provided with special-purpose suspension centre, in the time of can switching the position for main supporting leg.
As shown in Figure 2, described middle supporting leg rotating disk lower transverse beam 13 and middle supporting leg supporting traverse 14 all are socketed on outside described middle supporting leg inner prop 11, be provided with middle height of landing leg and regulate oil cylinder 19 between middle supporting leg rotating disk lower transverse beam 13 and middle supporting leg supporting traverse 14, the two ends that described middle height of landing leg is regulated oil cylinder 19 respectively with middle supporting leg rotating disk lower transverse beam 13 be connected supporting leg supporting traverse 14 and be connected.

Claims (5)

1. Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius, comprise girder assembly (1), front leg strut (8), auxiliary supporting leg (2), supporting leg (3) in supporting leg (7) in No., No. two, hoisting overhead travelling crane (5), in hang (4), hydraulic system (10), electrical system (9), it is characterized in that:
Described girder assembly (1) is single truss linear structure;
in described No. one, supporting leg (7) is identical with supporting leg (3) structure in No. two, in each, supporting leg comprises middle supporting leg inner prop (11), middle supporting leg rotating disk top rail (12), middle supporting leg rotating disk lower transverse beam (13), middle supporting leg supporting traverse (14), middle supporting leg connecting cross beam (15), middle supporting leg lower transverse beam (16), middle supporting leg vertical shift mechanism (20), middle supporting leg transverse-moving mechanism, described middle supporting leg transverse-moving mechanism is provided with middle supporting leg sideslip oil cylinder (18), the two ends of described middle supporting leg sideslip oil cylinder (18) respectively by pin and described middle supporting leg connecting cross beam (15) be connected middle supporting leg lower transverse beam (16) and be connected, described middle supporting leg connecting cross beam (15) is slidably connected by set traversing chute and the lower transverse beam in middle supporting leg lower transverse beam (16) top, described middle supporting leg lower transverse beam (16) be can a plurality of horizontal assembly units modular construction,
Top, the middle part welding of described middle supporting leg rotating disk lower transverse beam (13) is shipped and resell on another market (22), and described middle supporting leg rotating disk top rail (12) turning set is connected on described shipping and reselling on another market (22).
2. the Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius according to claim 1, it is characterized in that: described hoisting overhead travelling crane (5), comprise the hoisting overhead travelling crane running mechanism, the hoisting overhead travelling crane brakes, hoisting system, the hoisting overhead travelling crane hydraulic system, the hoisting overhead travelling crane control system, the hoisting overhead travelling crane crossing system, described hoisting overhead travelling crane crossing system comprises that being located at hoisting overhead travelling crane walks the traversing vehicle frame of hoisting overhead travelling crane (25) on driving frame (27), hoisting overhead travelling crane sideslip oil cylinder (28), the two ends of described hoisting overhead travelling crane sideslip oil cylinder (28) are individually fixed in hoisting overhead travelling crane and walk on driving frame (27) and the traversing vehicle frame of hoisting overhead travelling crane (25).
3. the Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius according to claim 2, it is characterized in that: described hoisting overhead travelling crane is walked driving frame (27) and is provided with two pairs of hoisting overhead travelling crane travelling wheels (30), and each hoisting overhead travelling crane travelling wheel (30) is provided with the travelling wheel drive unit (31) of band brake system.
4. the Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius according to claim 2, is characterized in that: walk between driving frame (27) and the traversing vehicle frame of hoisting overhead travelling crane (25) to be provided with the traversing slide plate of hoisting overhead travelling crane (26) at described hoisting overhead travelling crane; Described hoisting system is arranged on the traversing vehicle frame of hoisting overhead travelling crane (25), is installed with the hoisting overhead travelling crane hoist engine (23) of band lifting travelling overhead crane winding machine brakes (24) on the traversing vehicle frame of described hoisting overhead travelling crane (25).
5. the Segmental assembling bridge-erecting machine that is applicable to the bridge erection of minimal curve radius according to claim 1, it is characterized in that: described middle supporting leg rotating disk lower transverse beam (13) and middle supporting leg supporting traverse (14) all are socketed on outside described middle supporting leg inner prop (11), be provided with middle height of landing leg and regulate oil cylinder (19) between middle supporting leg rotating disk lower transverse beam (13) and middle supporting leg supporting traverse (14), the two ends that described middle height of landing leg is regulated oil cylinder (19) respectively with middle supporting leg rotating disk lower transverse beam (13) be connected supporting leg supporting traverse (14) and be connected.
CN 201220742304 2012-12-28 2012-12-28 Section-assembling bridge erecting machine applicable to erection of bridge girders with small curve radii CN202989784U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031811A (en) * 2012-12-28 2013-04-10 中铁十一局集团有限公司 Section-assembling bridge girder erection machine suitable for erecting bridges with minimum curve radii
CN106087775A (en) * 2016-08-08 2016-11-09 郑州新大方重工科技有限公司 For setting up intercity track and subway U beam self-balancing via hole type Bridge Erector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031811A (en) * 2012-12-28 2013-04-10 中铁十一局集团有限公司 Section-assembling bridge girder erection machine suitable for erecting bridges with minimum curve radii
CN106087775A (en) * 2016-08-08 2016-11-09 郑州新大方重工科技有限公司 For setting up intercity track and subway U beam self-balancing via hole type Bridge Erector
CN106087775B (en) * 2016-08-08 2017-08-08 郑州新大方重工科技有限公司 For setting up intercity track and subway U beam self-balancing via hole type Bridge Erectors

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