CN105755964A - Low-level bridge erection machine for erecting high-speed railway bridge - Google Patents

Low-level bridge erection machine for erecting high-speed railway bridge Download PDF

Info

Publication number
CN105755964A
CN105755964A CN201610263010.3A CN201610263010A CN105755964A CN 105755964 A CN105755964 A CN 105755964A CN 201610263010 A CN201610263010 A CN 201610263010A CN 105755964 A CN105755964 A CN 105755964A
Authority
CN
China
Prior art keywords
supporting leg
girder
main girder
bridge
bridge erector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610263010.3A
Other languages
Chinese (zh)
Inventor
周治国
张志华
吴国梅
陈德利
林建青
陈永久
张永力
田凤学
卫森
曹长兴
祖国栋
江秋生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
Original Assignee
Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou New Dafang Heavy Industries and Technology Co Ltd filed Critical Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
Priority to CN201610263010.3A priority Critical patent/CN105755964A/en
Publication of CN105755964A publication Critical patent/CN105755964A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Provided is a low-level bridge erection machine for erecting a high-speed railway bridge. The bridge erection machine is characterized in that the bridge erection machine comprises a low-level bridge erection machine body and a beam transporting vehicle; the low-level bridge erection machine body comprises a bridge erection machine main girder, a first landing leg which is installed at the front end of the main girder through a landing leg wheel box and a hanging system, a front-and-back hoisting mechanism which is installed on a middle track of the web part of the inner side of the main girder in a longitudinally moving mode, a second landing leg located in the middle of a main girder frame and a fourth landing leg located on the tail portion of the main girder; the upper portion of the second landing leg is hinged to supports on the two sides of the main girder frame, the fourth landing leg is hinged to the tail portion of the main girder in a mode of rotating around a connecting cross beam on the tail portion of the main girder, and a running truck is arranged at the bottom of the fourth landing leg; a third landing leg which vertically extends upwards and is used for supporting the tail portion of the main girder is installed on the upper portion of a frame of the beam transporting vehicle, and a fixing support which vertically extends downwards and is used for supporting the piggy-back rack low-level bridge erection machine body is installed on the lower portion of the front portion of the frame of the beam transporting vehicle.

Description

A kind of Bridge Erector of low level erection high-speed rail bridge
Technical field
The present invention relates to and relate to a kind of high-speed railway bridge spanning equipment, particularly relate to the Bridge Erector of a kind of low level erection high-speed rail bridge.
Background technology
Along with high ferro construction is to the mountain development of off-lying province, the bridge tunnel on rail track gets more and more, and construction requirement and difficulty are also more and more higher, particularly with regard to set a roof beam in place in tunnel face and tunnel operating mode time, require to propose higher requirement to the construction height of Bridge Erector.The Bridge Erector of prior art cannot meet its construction requirement, and the efficiency of construction of integration of transporting and building machine cannot meet again requirement, and this is accomplished by a kind of new construction equipment and construction technology process to improve efficiency of construction and to meet the needs that high ferro is built.
Summary of the invention
The purpose of the present invention provides the Bridge Erector of a kind of low level erection high-speed rail bridge just for weak point existing in above-mentioned prior art.Standby and the construction procedure arranged for high-speed rail bridge construction is proposed brand-new thinking by it, and the equipment such as beam car, Bridge Erector has done to complete these construction procedures brand-new optimization design and combination simultaneously.
The purpose of the present invention can be realized by following technique measures:
The Bridge Erector of the low level erection high-speed rail bridge of the present invention includes low level Bridge Erector and beam car;Described low level Bridge Erector includes crane ' s major girder, No. I supporting leg of girder front end it is arranged on by supporting leg roller box and hangar system, to vertically move the forward and backward lifting mechanism that mode is arranged on inside girder on abdominal part intermediate orbit, it is positioned at No. II supporting leg in the middle part of main girder frame, and is positioned at No. IV supporting leg of girder afterbody;The top of described No. II supporting leg is combined by the bearing of hinged mode with main girder frame both sides, and when Bridge Erector feeding beam is with when setting a roof beam in place, No. II supporting leg can dig rotation 90o longitudinally upward along girder;Described No. IV supporting leg by articulated manner to be arranged on the afterbody of girder in the way of the rotation of the connecting cross beam of girder afterbody, and when Bridge Erector feeding beam is with when setting a roof beam in place, No. IV supporting leg can dig 90o longitudinally rearward along girder;When Bridge Erector via, No. IV supporting leg is perpendicular to beam face after putting down, and coordinates No. I supporting leg to complete the via operation of Bridge Erector, and is provided with running truck in the bottom of No. IV supporting leg, the track traveling that during Bridge Erector via, running truck has been laid along beam face;Vehicle frame upper rear at described beam car is provided with No. III supporting leg for support girder afterbody extended straight up, when beam car arrives Yun Liang position, it is connected with Bridge Erector rear portion after No. III supporting leg jacking, become the Bridge Erector rear support leg when setting a roof beam in place, vehicle frame lower front at beam car be provided with extend straight down for supporting the fixed support packing low level Bridge Erector, namely beam car is except having the basic function packing concrete beam, also has the effect playing bearing force props in low level Bridge Erector feeding beam and process of setting a roof beam in place.
Heretofore described No. II supporting leg is made up of the left and right leg assembly being arranged on earth plate crossbeam two ends, and the upper end of left and right leg assembly is hinged respectively through hinge and the bearing being positioned at girder both sides;During girder erection by bridging machine, leg assembly and earth plate crossbeam disengage, and leg assembly is overturn by the hinge bearing forward upward around girder both sides, gets out of the way beam transporting passage, rear support leg assembly of having set a roof beam in place is rotated back affixed with earth plate crossbeam, completes the via operation of Bridge Erector.
More specifically, No. I heretofore described supporting leg is stood on bridge pier, and No. II supporting leg and No. IV supporting leg are stood on bridge floor;Main girder frame seat is placed on above the carrying roller roller box of No. I supporting leg;The forward and backward lifting mechanism track that abdominal part is middle inside girder can vertically move.
No. III supporting leg of the vehicle frame upper rear being arranged on beam car is walked with car when transporting beam at ordinary times, is fixed together with the girder afterbody of No. III supporting leg and low level Bridge Erector when setting a roof beam in place to feeding beam, plays the effect of main support stress lower limb.
Beneficial effects of the present invention is as follows:
1) can completing the work that tradition bridge formation technology cannot complete, its most direct effect is: saving construction site, eliminate the time much disassembling installation, put forward elevated trough speed, easy construction is quick.
2) Bridge Erector can complete the Major Difficulties during high ferro line construction is built, by the effective construction task having coordinated tunnel face to set a roof beam in place and having set a roof beam in place in tunnel of Bridge Erector with beam car.Capacity utilization can be greatly improved, reduce manufacture and the maintenance cost of equipment simultaneously, save construction cost.
Accompanying drawing explanation
Fig. 1 is the assembly figure of the present invention.
Sequence number in figure: 1 is low level Bridge Erector, 2 is beam car.
Fig. 2 is the low level Bridge Erector assembly figure of the present invention.
Sequence number in figure: 3 is girder, 4 is No. I supporting leg, and 5 is forward and backward lifting mechanism, and 6 is No. II supporting leg, and 7 is No. IV supporting leg.
Fig. 3 is the beam car assembly figure of the present invention.
Sequence number in figure: 8 is No. III supporting leg, and 9 is fixed support.
Fig. 4 is No. 2 supporting leg sectional drawings of Bridge Erector.
Sequence number in figure: 10 is bearing, 11 is hinge, and 12 is leg assembly, and 13 is earth plate crossbeam.
Detailed description of the invention
The present invention is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, 2, the Bridge Erector of the low level erection high-speed rail bridge of the present invention includes low level Bridge Erector 1 and beam car 2;Described low level Bridge Erector 1 includes crane ' s major girder 3, No. I supporting leg 4 of girder 3 front end it is arranged on by supporting leg roller box and hangar system, to vertically move the forward and backward lifting mechanism 5 that mode is arranged on inside girder 3 on abdominal part intermediate orbit, it is positioned at No. II supporting leg 6 in the middle part of main girder frame, and is positioned at No. IV supporting leg 7 of girder 3 afterbody;The top of described No. II supporting leg 6 is combined with the bearing 10 of main girder frame both sides by hinged mode, and when Bridge Erector feeding beam is with when setting a roof beam in place, No. II supporting leg 6 can dig rotation 90o longitudinally upward along girder, gets out of the way beam transporting passage;Described No. IV supporting leg 7 is arranged on the afterbody of girder 3 around the connecting cross beam of girder afterbody by articulated manner in the way of rotating, during via, No. IV supporting leg 7 is stood on beam face, affixed with main girder frame above, when Bridge Erector feeding beam and set a roof beam in place operation time, it is affixed that No. IV supporting leg 7 releases with girder, 90o is dug longitudinally rearward along girder 3, get out of the way the transport channel of beam car, forward and backward lifting mechanism 5 track that abdominal part is middle inside girder 3 can vertically move, significantly reduce the construction height of Bridge Erector 1;When Bridge Erector via, No. IV supporting leg 7 is perpendicular to beam face after putting down, and coordinates No. I supporting leg 4 to complete the via operation of Bridge Erector, and is provided with running truck in the bottom of No. IV supporting leg 7, the track traveling that during Bridge Erector via, running truck has been laid along beam face.
Beam car enter Bridge Erector and set a roof beam in place operation time, the affixed back rotation that No. IV supporting leg 7 releases with girder is dug, and gets out of the way the transport channel of beam car.Forward and backward lifting mechanism 5 track that abdominal part is middle inside girder 3 can vertically move, significantly reduce the construction height of Bridge Erector 1.
As shown in Figure 1,3, vehicle frame upper rear at described beam car is provided with No. III supporting leg 8 for support girder 3 afterbody extended straight up, when beam car arrives Yun Liang position, it is connected with Bridge Erector 1 rear portion after the jacking of No. III supporting leg 8, become the Bridge Erector 1 rear support leg when setting a roof beam in place, vehicle frame lower front at beam car 2 be provided with extend straight down for supporting the fixed support 9 packing low level Bridge Erector, namely beam car 2 is except having the basic function packing concrete beam, also has the effect playing bearing force props in low level Bridge Erector 1 feeding beam and process of setting a roof beam in place.
As shown in Figure 4, heretofore described No. II supporting leg is made up of the left and right leg assembly 12 being arranged on earth plate crossbeam 13 two ends, and the upper end of left and right leg assembly 12 is hinged respectively through hinge 11 and the bearing 10 being positioned at girder both sides;During girder erection by bridging machine, leg assembly 12 and earth plate crossbeam 13 disengage, and leg assembly 12 is overturn by the hinge 11 bearing 10 forward upward around girder both sides, gets out of the way beam transporting passage, rear support leg assembly 12 of having set a roof beam in place is rotated back affixed with earth plate crossbeam 13, completes the via operation of Bridge Erector.
More specifically, No. I heretofore described supporting leg 4 is stood on bridge pier, and No. II supporting leg 6 and No. IV supporting leg 7 are stood on bridge floor;Main girder frame seat is placed on above the carrying roller roller box of No. I supporting leg 4;Forward and backward lifting mechanism 5 track that abdominal part is middle inside girder 3 can vertically move.
No. III supporting leg 8 of the vehicle frame upper rear being arranged on beam car is walked with car when transporting beam at ordinary times, to feeding beam and when setting a roof beam in place No. III supporting leg 8 be fixed together with girder 3 afterbody of low level Bridge Erector 1, play main support stress lower limb effect (referring to Fig. 1,3).
Specific embodiment of the invention technical process is as follows:
1) beam car 2 transports to beam the afterbody of low level Bridge Erector 1 after Liang Chang fills beam, and wait is set a roof beam in place.
2) 4, No. II supporting leg 6 standing support of No. I supporting leg of low level Bridge Erector 1, now forward and backward lifting mechanism 5 is between I, No. II supporting leg.Release the affixed of No. IV supporting leg 7 and main girder frame, dig No. IV supporting leg 7 backward.
3) beam car 2 is packed concrete beam and is entered low level Bridge Erector 1 inside, by low level Bridge Erector No. III supporting leg 8 jacking above beam car 2 to No. III supporting leg 8 is affixed with the rear end of main girder frame with bolt behind good position after putting in place, and now 8 main supporting roles of No. III supporting leg.
4) remove two leg assemblies of No. II supporting leg 12 below and earth plate crossbeam 13 affixed, respectively leg assembly 12 is rotated 90o longitudinally forward along girder, get out of the way beam transporting passage.
5) forward and backward lifting mechanism 5 runs to the top of concrete beam bale handle position backward, concrete beam is mentioned tailing edge girder advanced longitudinally forward to Luo Liang position.
6) forward and backward lifting mechanism 5 hanging beam falls after falling beam position to front bridge pier beam simultaneously, is placed on above bridge pier by concrete beam, then releases suspender.
7) two leg assemblies 12 of No. II supporting leg 6 rotate 90o separately down, by affixed to two leg assemblies 12 and earth plate crossbeam 13.Forward and backward lifting mechanism 5 runs to the centre of I, No. II supporting leg.
8) releasing the affixed of beam car 2 No. III supporting leg 8 above and main girder frame rear end, the jacking cylinder of No. III supporting leg 8 of retracting, beam car 2 returns Liang Chang and takes beam.
9) No. IV supporting leg 7 is fallen, and affixed by No. IV supporting leg 7 and main girder frame.
10) track, the jacking cylinder of No. IV supporting leg 7 of jacking are laid by the traveling dolly place below No. IV supporting leg 7 corresponding to beam face, allow No. IV supporting leg 7 traveling dolly pressure below in orbit.
11) packing up the jacking cylinder of No. II supporting leg 6, No. II supporting leg 6 comes to nothing, and starts the carrying roller roller box of No. I supporting leg 4 and the traveling dolly of No. IV supporting leg 7, the length of low level Bridge Erector 1 girder one concrete beam of vertical shift forward, the pier top of arrival front, main girder frame front end bridge pier.
12) jacking cylinder of No. II supporting leg 6 of jacking, allows No. II supporting leg prop up and stands in Liang Mianshang.Pack up the jacking cylinder of No. I supporting leg 4, allow No. I supporting leg 4 come to nothing.Starting the hanging traveling of No. I supporting leg 4, No. I supporting leg 4 moves in the pier top of front along main girder frame.
13) jacking cylinder of No. I supporting leg 4 of jack-up, allows No. I supporting leg 4 stress.Now low level Bridge Erector 1 via work is complete, waits that beam car 2 transports the arrival of beam.

Claims (2)

1. the Bridge Erector of a low level erection high-speed rail bridge, it is characterised in that: it includes low level Bridge Erector (1) and beam car (2);Described low level Bridge Erector (1) includes crane ' s major girder (3), No. I supporting leg (4) of girder (3) front end it is arranged on by supporting leg roller box and hangar system, to vertically move the forward and backward lifting mechanism (5) that mode is arranged on the abdominal part intermediate orbit of girder (3) inner side, it is positioned at No. II supporting leg (6) in the middle part of main girder frame, and is positioned at No. IV supporting leg (7) of girder (3) afterbody;The top of described No. II supporting leg (6) is combined with the bearing (10) of main girder frame both sides by hinged mode;Described No. IV supporting leg (7) is arranged on the afterbody of girder (3) around the connecting cross beam of girder afterbody by articulated manner in the way of rotating, and the bottom of No. IV supporting leg (7) is provided with running truck;Vehicle frame upper rear at described beam car is provided with No. III supporting leg (8) for support girder (3) afterbody extended straight up, the vehicle frame lower front at beam car (2) be provided with extend straight down for supporting the fixed support (9) packing frame low level Bridge Erector.
2. the Bridge Erector of low level according to claim 1 erection high-speed rail bridge, it is characterized in that: described No. II supporting leg is made up of the left and right leg assembly (12) being arranged on earth plate crossbeam (13) two ends, the upper end of left and right leg assembly (12) is hinged respectively through hinge (11) and the bearing (10) being positioned at girder both sides.
CN201610263010.3A 2016-04-26 2016-04-26 Low-level bridge erection machine for erecting high-speed railway bridge Pending CN105755964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610263010.3A CN105755964A (en) 2016-04-26 2016-04-26 Low-level bridge erection machine for erecting high-speed railway bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610263010.3A CN105755964A (en) 2016-04-26 2016-04-26 Low-level bridge erection machine for erecting high-speed railway bridge

Publications (1)

Publication Number Publication Date
CN105755964A true CN105755964A (en) 2016-07-13

Family

ID=56325775

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610263010.3A Pending CN105755964A (en) 2016-04-26 2016-04-26 Low-level bridge erection machine for erecting high-speed railway bridge

Country Status (1)

Country Link
CN (1) CN105755964A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083021A (en) * 2018-09-17 2018-12-25 安徽德马泰格起重机械有限公司 A kind of lower guide fixed-point sling erecting bridge machine front leg strut
CN109972498A (en) * 2019-02-19 2019-07-05 陕西铁路工程职业技术学院 A kind of high-speed rail Bridge Erector mentions fortune frame hierarchical synthesis actual training device
CN110273371A (en) * 2018-03-17 2019-09-24 中铁第五勘察设计院集团有限公司 Integration of transporting and building machine
CN114045755A (en) * 2021-11-23 2022-02-15 中铁七局集团有限公司 Auxiliary trolley machine construction method for small clearance frame beam construction
CN114150590A (en) * 2021-12-24 2022-03-08 中铁十四局集团青岛工程有限公司 Method for erecting beam matched with high-speed rail equipment in every generation
CN114837084A (en) * 2022-04-11 2022-08-02 中铁第五勘察设计院集团有限公司 Beam transporting vehicle and bridging system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202755313U (en) * 2012-07-25 2013-02-27 中铁十一局集团有限公司 Tunnel portal short-distance girder-erecting and tunnel-passing bridge-erecting machine
CN103397598A (en) * 2013-08-09 2013-11-20 中铁科工集团有限公司 Supporting device for girder erection at tunnel portal and in tunnel and application thereof
US8956075B1 (en) * 2013-11-04 2015-02-17 Patrick Shawn Free Tunnel mold, system and method for slip forming reinforced concrete structures with exposed rebars
CN204551283U (en) * 2015-03-31 2015-08-12 中铁工程机械研究设计院有限公司 In tunnel, large-tonnage is set a roof beam in place fortune frame system
CN205576751U (en) * 2016-04-26 2016-09-14 郑州新大方重工科技有限公司 Low level erects frame bridge crane of high -speed railway bridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202755313U (en) * 2012-07-25 2013-02-27 中铁十一局集团有限公司 Tunnel portal short-distance girder-erecting and tunnel-passing bridge-erecting machine
CN103397598A (en) * 2013-08-09 2013-11-20 中铁科工集团有限公司 Supporting device for girder erection at tunnel portal and in tunnel and application thereof
US8956075B1 (en) * 2013-11-04 2015-02-17 Patrick Shawn Free Tunnel mold, system and method for slip forming reinforced concrete structures with exposed rebars
CN204551283U (en) * 2015-03-31 2015-08-12 中铁工程机械研究设计院有限公司 In tunnel, large-tonnage is set a roof beam in place fortune frame system
CN205576751U (en) * 2016-04-26 2016-09-14 郑州新大方重工科技有限公司 Low level erects frame bridge crane of high -speed railway bridge

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110273371A (en) * 2018-03-17 2019-09-24 中铁第五勘察设计院集团有限公司 Integration of transporting and building machine
CN110273371B (en) * 2018-03-17 2024-04-30 中铁第五勘察设计院集团有限公司 Transport and frame integrated machine
CN109083021A (en) * 2018-09-17 2018-12-25 安徽德马泰格起重机械有限公司 A kind of lower guide fixed-point sling erecting bridge machine front leg strut
CN109972498A (en) * 2019-02-19 2019-07-05 陕西铁路工程职业技术学院 A kind of high-speed rail Bridge Erector mentions fortune frame hierarchical synthesis actual training device
CN109972498B (en) * 2019-02-19 2021-01-15 陕西铁路工程职业技术学院 Hierarchical comprehensive training device for carrying frame of high-speed rail bridge girder erection machine
CN114045755A (en) * 2021-11-23 2022-02-15 中铁七局集团有限公司 Auxiliary trolley machine construction method for small clearance frame beam construction
CN114150590A (en) * 2021-12-24 2022-03-08 中铁十四局集团青岛工程有限公司 Method for erecting beam matched with high-speed rail equipment in every generation
CN114150590B (en) * 2021-12-24 2023-04-28 中铁十四局集团青岛工程有限公司 Method for erecting matched beam of alternate high-speed rail equipment
CN114837084A (en) * 2022-04-11 2022-08-02 中铁第五勘察设计院集团有限公司 Beam transporting vehicle and bridging system
CN114837084B (en) * 2022-04-11 2023-09-05 中铁第五勘察设计院集团有限公司 Beam transporting vehicle and bridging system

Similar Documents

Publication Publication Date Title
CN105755964A (en) Low-level bridge erection machine for erecting high-speed railway bridge
WO2021056959A1 (en) Communication tunnel boring machine
CN101851898B (en) Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof
CN101929341B (en) Construction method for TBM synchronization lining
CN102704407B (en) Construction method of lower guide beam type bridge-erecting crane passing through tunnel
CN101793007B (en) Integrative bridge erection machine of shift type transporting and erecting girder and bridge erecting method
CN103590337B (en) A kind of bridge girder erection machine system and transfer method thereof
CN101831888B (en) 1200 tonner water conservancy aqueduct transportation and erection equipment
CN204551283U (en) In tunnel, large-tonnage is set a roof beam in place fortune frame system
CN102337905B (en) Open type TBM (Tunnel Boring Machine) fullface synchronous lining trolley for hydraulictunnel
CN203308471U (en) Open type TBM cast-in-place concrete inverted arch synchronous lining trolley
CN108756892B (en) Work platform, continuous operation system and continuous operation method for tunnel construction
CN103133012A (en) Open type tunnel boring machine (TBM) on-site concrete inverted arch synchronous lining trolley
CN107100074A (en) A kind of lower bearing arch bridge concrete bridge deck construction method
CN201952741U (en) Multifunctional bridge erecting machine
CN101736702B (en) Mountainous area multifunctional bridge conveying-erecting machine and bridge-erecting method
CN103485282A (en) Method for gantry machine to go into and out of tunnels to erect box girders
CN107476815A (en) Carry the laneway temporary support support and application method of handling track
CN207498754U (en) A kind of novel track-laying machine of city track traffic engineering
CN106087768A (en) A kind of method of assembled mobile formwork in bridge tunnel narrow short transition time section
CN201762651U (en) Tunnel inverted arch trestle bridge
CN205576751U (en) Low level erects frame bridge crane of high -speed railway bridge
CN204662270U (en) A kind of case girder transferring system
CN204343172U (en) A kind of Bridge Erector
CN102071641B (en) Cement beam packs bridge machine cloth supporting leg type integration of transporting and building Bridge Erector and bridge formation engineering method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160713