CN208087078U - A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector - Google Patents

A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector Download PDF

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Publication number
CN208087078U
CN208087078U CN201820559827.XU CN201820559827U CN208087078U CN 208087078 U CN208087078 U CN 208087078U CN 201820559827 U CN201820559827 U CN 201820559827U CN 208087078 U CN208087078 U CN 208087078U
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CN
China
Prior art keywords
steel
girder
travelling crane
overhead travelling
hoisting
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CN201820559827.XU
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Chinese (zh)
Inventor
贾力锋
陈德利
代宇
周洪顺
吴国梅
贾耀东
宋飞
陈媛媛
王玛利
王琪
程波
牛青林
李军超
高建华
祖国栋
邱宸
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郑州新大方重工科技有限公司
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Priority to CN201820559827.XU priority Critical patent/CN208087078U/en
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Publication of CN208087078U publication Critical patent/CN208087078U/en

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Abstract

The utility model discloses a kind of boom hoistings of large span steel reinforced concrete combination beam Bridge Erector, including main frame, leg system, the preceding hoisting overhead travelling crane for lifting girder steel and rear hoisting overhead travelling crane, affiliated facility, hydraulic system, electric-control system, hangar system, hangar system is made of multiple hanging units, and each hanging unit includes tail trimmer, hanging twisted steel, jacking cylinder, swinging seat, intermediate transverse girder;Tail trimmer is hinged by swinging seat and main frame, and the lower end for hanging twisted steel is fixed on the upper end of tail trimmer for fixing girder steel, the jacking cylinder, and jacking cylinder drives hanging twisted steel to move up and down.During hanging, pulling force that jacking cylinder is supplied to tail trimmer upward.Bridge Erector can first install girder steel, be laid with prefabricated bridge, then pour, connect and be integral with frame girder steel, meet the characteristic requirements of steel reinforced concrete combination beam.

Description

A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector
Technical field
It is specifically a kind of to build bridge for large span steel reinforced concrete combination beam the utility model is related to engineering mechanical device technical field The boom hoisting of machine is related specifically to the construction suitable for long-span highway bridge.
Background technology
With going deep into for China's freeway traffic construction, it is more and more more difficult across rivers, river shoal, marsh etc. to occur The bridge of construction site, unlike common overpass, these places carry out elevated bridge construction, and bridge pier foundation in construction duration is thrown Enter relatively large, execution conditions complexity, to reduce construction input, Longspan Bridge design is mostly used, how in Longspan Bridge Input is reduced in construction, is improved and is set up quality, more stringent requirements are proposed to Bridge Erector adaptability.
At this stage common Bridge Erector do not adapt to the steel reinforced concrete combination beam construction that collapses whole at present.Existing Bridge Erector itself is suitable With being limited in scope, the whole hole girder steels of single span 80m be at present maximum simple bridge across;Existing Bridge Erector cannot achieve to having set up steel itself Beam is lifted up, and provides larger lifting force more beyond example;Existing steel reinforced concrete conjugative bridge is mostly cable-stayed bridge, suspension bridge residence It is more, using being welded after the segmented lifting of girder steel when construction, lifting operation is generally carried out using erection crane, using whole across girder steel peace The current beyond example of dress construction;It is opening that beam face steel rail laying, the design girder steel are required during existing Bridge Erector via traveling more Running mechanism can not be arranged in bridge floor in box-type section.Current Bridge Erector is erecting by overhang primarily to lifting girder steel or mixed It coagulates Tu Liang and sets, be not suitable with large-span steel hybrid beam.
Utility model content
The utility model aim is just to provide for a kind of boom hoisting for large span steel reinforced concrete combination beam Bridge Erector, this Kind Bridge Erector can fully meet the demand of large span steel reinforced concrete combination beam erection construction.
In order to achieve the above objectives, using following technical scheme.
A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector, including main frame 1, leg system, for lifting steel The preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7 of beam, affiliated facility 8, hydraulic system 9 and electric-control system 10, preceding hoisting overhead travelling crane 5 is with after Hoisting overhead travelling crane 7 moves in 1 top rail of main frame;Further include the hangar system 6 that prestretching is carried out to having set up girder steel, it is described to hang Extension system 6 is connected to the bottom of main frame 1;Hangar system 6 is made of multiple hanging units, and each hanging unit includes two short Crossbeam 6a, hanging twisted steel 6b, jacking cylinder 6c, swinging seat 6d, the intermediate transverse girder 6e that cooperation is slid vertically with tail trimmer 6a;It is short Crossbeam 6a is hinged by swinging seat 6d and main frame 1, and the intermediate transverse girder 6e is connected between two tail trimmer 6a, hangs screw thread For fixing girder steel, upper end is fixed on the upper end of tail trimmer 6a across tail trimmer 6a, the jacking cylinder 6c for the lower end of muscle 6b, top Oil-lifting jar 6c drives hanging twisted steel 6b to move up and down.During hanging, jacking cylinder is supplied to tail trimmer 6a upward Pulling force.
The lower end of hanging twisted steel 6b is fixed when building bridge with girder steel, upward prestretching girder steel, and prefabricated bridge floor is laid on girder steel The connection of whole prefabricated boards is integral, screw thread is hung in casting process by plate, the pouring reinforcement concrete between prefabricated bridge Pulling force on muscle 6b gradually increases, until reaching maximum value.Intermediate transverse girder is set as flanged joint, easy to disassemble, via, It is flexibly dismantled when installation girder steel or reversed construction, prevents from interfering.
Preceding hoisting overhead travelling crane 5 includes the preceding jack up unit 5a for promoting girder steel, along the preceding vertical shift mechanism of the longitudinal movement of main frame 1 5b, the preceding transverse-moving mechanism 5c along 1 transverse shifting of main frame, preceding rotary hanger 5d.
Hoisting overhead travelling crane 7 includes afterwards:Hoisting system 7a, rear vertical shift mechanism 7b, rear transverse-moving mechanism 7c, rear suspender 7d afterwards;
The main frame 1 includes girder 1a, connection beam 1b;Preceding hoisting overhead travelling crane 5 is driven with rear hoisting overhead travelling crane 7 by motor reducer It moves along girder 1a longitudinal direction travelings, hangar system 6 is arranged at the top of girder 1a lower booms.
Usual leg system supports main frame 1, preceding hoisting overhead travelling crane 5 to be moved up in 1 top rail of main frame with rear hoisting overhead travelling crane 7 Dynamic, hangar system 6 is arranged in above 1 lower edge of main frame on intermediate transverse girder, vertical with chord member axis.
Set a roof beam in place state, preceding hoisting overhead travelling crane 5 with rear hoisting overhead travelling crane 7 after Bridge Erector across lifting beam body successively, linkage vertical shift is extremely It is preceding across being adjusted by the running mechanism of shifting in length and breadth and hoisting system of preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7, beam be mounted on and is closed Right position is set, and the welding between girder steel and front span beam is completed.Hangar system 6 is by the certain pulling force of prestretching between girder steel and crane's major girder, so Prefabricated bridge is mounted on frame girder steel with rear hoisting overhead travelling crane 7 using preceding hoisting overhead travelling crane 5 afterwards, then hangar system pulling force is carried Height arrives final pulling force, pours and connects wet seam between prefabricated bridge, after intensity reaches, the unloading of hangar system 6 and with frame steel Beam comes to nothing, and Bridge Erector is ready for via.
Compared with prior art:
Bridge Erector involved by the utility model can first install girder steel, prefabricated bridge is laid on girder steel, then will be prefabricated Poured between floorings, connect and be integral with frame girder steel, meet the characteristic requirements of steel reinforced concrete combination beam, new substep set up and Prestretching construction technology can reduce long-span beams integral lifting and set up difficulty, reduce the defect of girder steel scene segmented welding.Do not having The action that negative direction is constructed can be completed in Bridge Erector under conditions of having the auxiliary of large tonnage crane;Preceding hoisting overhead travelling crane 5 and rear lifting Transverse-moving mechanism is indulged in the setting of overhead traveling crane 7, is laterally run in girder 1a longitudinal direction travelings or traverse beam by motor reducer driving overhead traveling crane, Meet steel beam position vertically and horizontally to adjust;Bridge Erector hangar system 6 can provide lifting power upwards to girder steel, optimize bridge structure, It reduces girder steel and designs steel using amount;The each via erect-position of Bridge Erector can complete left and right double width crane span structure and set.Production and construction effect can be improved Can, improve the effective rate of utilization of material.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment;
Fig. 2 is the structure chart of erecting by overhang;
Fig. 3 is the structure chart of front leg strut;
Fig. 4 is the structure chart of main supporting leg;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the structure chart of rear support leg;
Fig. 7 is the right view of Fig. 6;
Fig. 8 is the top partial view diagram of main frame;
Fig. 9 is the structure chart of preceding hoisting overhead travelling crane;
Figure 10 is the structure chart of rear hoisting overhead travelling crane;
Figure 11 is that Bridge Erector transports beam state diagram;
Figure 12 is that girder steel hangs state diagram.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by these by particular specific embodiment below Content described in specification understands other advantages and effect of the utility model easily.
It please refers to Fig.1.The appended diagram of this specification paints the structure, ratio, size etc. set, only coordinating specification Revealed content is not limited to the enforceable limit of the utility model so that those skilled in the art understands and reads Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not It influences under the effect of the utility model can be generated and the purpose that can reach, should all still fall in the revealed skill of the utility model In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, opposite to close System changes as shown in Figure 1, a kind of Bridge Erector of large span steel reinforced concrete combination beam erection construction, including main frame 1, leg system, use In the preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7, affiliated facility 8, hydraulic system 9 and the electric-control system 10 that lift girder steel, preceding lifting day Vehicle 5 is moved with rear hoisting overhead travelling crane 7 in 1 top rail of main frame.
According to complete machine function needs, hydraulic system 9 includes:Front leg strut hydraulic system, main support leg hydraulic system, rear support leg liquid The several majors such as pressure system, hanging hydraulic system, crown block hydraulic system.
9 operation principle of hydraulic system:Electric motor starting, hydraulic station driving motor pass through shaft coupling driving axial variable piston Pump, electromagnetic relief valve is in off-position at this time, pumps the pressure oil of discharge and directly returns to oil by overflow valve with lower pressure Case makes empty load of motor start, and starting current is small, and hydraulic system is without impact;Start corresponding button, solenoid directional control valve and overflow valve It charges simultaneously, high pressure oil overcomes load by pump → solenoid directional control valve → oil cylinder.Pumping plant is using automatically controlled with regard near operation.Each pump Controlled oil cylinder of standing can not only link, but also can be controlled with single action.
The use modularity control pattern of Bridge Erector electric-control system 10, electric-control system 10 include:Main supporting leg control section, overhead traveling crane Control section, hydraulic power unit control section.Each traveling, raising part motor by electromagnetic brake complete brake.Hydraulic power unit Control system is mainly made of local operation case, and system is safe and reliable, easy to maintain.
The leg system be included in the front leg strut 2 that the lower section of main frame 1 is sequentially arranged along longitudinal direction from front to back, main supporting leg 3, Rear support leg 4.It further include the hangar system 6 that prestretching is carried out to having set up girder steel.
As shown in Fig. 2, hangar system 6 is connected to the bottom of main frame 1;Hangar system 6 is made of multiple hanging units, often A hanging unit includes two tail trimmer 6a, the hanging twisted steel 6b of cooperation is slid vertically with tail trimmer 6a, jacking cylinder 6c, is shaken Swing seat 6d, intermediate transverse girder 6e;Tail trimmer 6a is hinged by swinging seat 6d and main frame 1, and the intermediate transverse girder 6e is connected to two Between tail trimmer 6a, the lower end of hanging twisted steel 6b passes through tail trimmer 6a, the jacking cylinder 6c solid for fixing girder steel, upper end It is scheduled on the upper end of tail trimmer 6a, jacking cylinder 6c drives hanging twisted steel 6b to move up and down.
The lower end of hanging twisted steel 6b is fixed when building bridge with girder steel, upward prestretching girder steel, and prefabricated bridge floor is laid on girder steel Plate, the pouring reinforcement concrete on prefabricated bridge, the pulling force in casting process on hanging twisted steel 6b gradually increases, until reaching To maximum value.The setting of intermediate transverse girder is to dismantle for convenience, is flexibly dismantled in via or reversed construction, prevents from interfering.
As shown in figure 9, preceding hoisting overhead travelling crane 5 includes the preceding jack up unit 5a for promoting girder steel, before the longitudinal movement of main frame 1 Vertical shift mechanism 5b, the preceding transverse-moving mechanism 5c along 1 transverse shifting of main frame, preceding rotary hanger 5d.
As shown in Figure 10, rear hoisting overhead travelling crane 7 includes:Afterwards hoisting system 7a, rear vertical shift mechanism 7b, rear transverse-moving mechanism 7c, after Suspender 7d.
As shown in Figure 4, Figure 5, main supporting leg 3 include two symmetrically arranged straddle, each straddle include and from top to bottom according to The secondary carrying roller 3a being fixedly connected, guiding mechanism 3b, support post 3c, first base 3f, traverse beam 3j, distribution beam 3i;Support is vertical It is equipped with first between column 3c and pedestal 3f and adjusts oil cylinder 3e, the outside of support post 3c is equipped with anchor rod 3d, the inside of pedestal 3f Equipped with the first transverse-moving mechanism 3h;The lower end of distribution beam 3i is fixedly connected with bridge pier, is used between the upper end and traverse beam 3j of distribution beam 3i Free bearing connects;The main frame 1 is slidably connected with carrying roller 3a, and the upper end of the carrying roller 3a is fixedly connected with guiding mechanism 3b, institute The inside for stating carrying roller 3a is equipped with vertical pushing mechanism 3g, indulges pushing mechanism 3g and is equipped with piston shoes, the side of the main frame 1 is equipped with rows of Pin hole, the vertical pushing mechanism 3g are sequentially inserted into pin hole promotion 1 stepping of main frame by pushing and pulling piston shoes.
Main supporting leg 3 is referred to as preceding main supporting leg 31 and rear main supporting leg 32 there are two being arranged before and after main frame.
As shown in figure 3, front leg strut 2 includes bottom end rail 2d, the bottom end rail is equipped with symmetrical two groups of foreleg columns 2a, flat Spreader beam 2b, the first guide post 2g, the second lifting cylinder 2c, second base 2e, the first guide post 2g is fixedly connected with second base 2e, preceding Leg column 2a is slidably connected with the first guide post 2g, and the middle part of shoulder pole girder 2b is fixedly connected with the first guide post 2g, and both ends are respectively with Two lifting cylinder 2c are fixedly connected, and the second lifting cylinder 2c drives column 2a is opposite with the first guide post 2g to slide, two the Connection drives the second transverse-moving mechanism 2f for being moved to both sides of second base 2e between two pedestal 2e, and the upper ends the column 2a pass through the One upper beam 2h is fixedly connected with main frame 1.
The first transverse-moving mechanism 3h and including the first traversing oil cylinder 3h1 and first connecting rod 3h2, first connecting rod 3h2 connections Between two first base 3f, the second transverse-moving mechanism 2f includes the second traversing oil cylinder 2f1 and second connecting rod 2f2, described Second connecting rod 2f2 is connected between two second base 2e.
As shown in Figure 6, Figure 7, rear support leg 4 includes:Second upper beam 4c, diagonal brace 4a, back leg column 4b, third adjust oil cylinder 4d, the second guide post 4f, third pedestal 2e;Second upper ends upper beam 4c are fixedly connected with main frame, the lower end of the second upper beam 4c Hinged with back leg column 4b, back leg column 4b and main frame 1 are carried out oblique pull and fixed by diagonal brace 4a, the second lower ends guide post 4f and with the Three pedestal 4e are fixedly connected, and back leg column 4b is slidably connected with the second guide post 4f, and third adjusts oil cylinder 4d and drives back leg column 4b Opposite sliding is carried out with the second guide post 4f.
The main frame 1 as shown in Figure 8 includes girder 1a, connection beam 1b;Preceding hoisting overhead travelling crane 5 is with rear hoisting overhead travelling crane 7 by electricity Machine speed reducer drives edge girder 1a longitudinal direction travelings, hangar system 6 are arranged at the top of girder 1a lower booms.
Usual leg system supports main frame 1, preceding hoisting overhead travelling crane 5 to be moved up in 1 top rail of main frame with rear hoisting overhead travelling crane 7 Dynamic, hangar system 6 is arranged in above 1 lower edge of main frame, vertical with chord member axis.
As shown in Figure 11, Figure 12, state of setting a roof beam in place, front leg strut 2, main supporting leg 3 support main frame 1, preceding hoisting overhead travelling crane 5 to be risen with rear Weight overhead traveling crane 7 across lifting beam body after Bridge Erector successively, and linkage vertical shift is to preceding across passing through preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7 Running mechanism and hoisting system adjustment are moved in length and breadth, and beam is mounted on suitable position, completes the welding between girder steel and front span beam.Hanging Then the certain pulling force of prestretching between girder steel and crane's major girder is utilized preceding hoisting overhead travelling crane 5 will be prefabricated with rear hoisting overhead travelling crane 7 by system 6 Floorings are mounted on frame girder steel, then hangar system pulling force are increased to final pulling force, pour connect between prefabricated bridge it is wet Seam waits for that intensity reaches post-stretching floorings, and hangar system 6 is unloaded and come to nothing with frame girder steel, and Bridge Erector is ready for via.
Via state, two 3 carrying roller of main supporting leg driving complete machines move forward, and a hole is in place, and four supporting leg cooperation supports of period are sharp With preceding hoisting overhead travelling crane 5 by the main supporting leg 3 in rear Forward one across.
The main frame 1 of Bridge Erector is symmetric design, and two 3 structures of main supporting leg and function are the same, and preceding hoisting overhead travelling crane 5 rises with rear Weight overhead traveling crane 7 can be moved along 1 top setting track of main frame in 1 length range of main frame.When needed, Bridge Erector can be only Reversed erection function can be realized in the position of adjustment front leg strut 2 and rear support leg 5.
The construction method of the Bridge Erector of large span steel reinforced concrete combination beam erection construction, includes the following steps:
1, operation of setting a roof beam in place is carried out by girder erection by bridging machine process;
2, it presses Bridge Erector via process and carries out via operation.
The girder erection by bridging machine process carries out according to the following steps successively:
Step 1:
1, Bridge Erector is in erect-position state of setting a roof beam in place;
2, beam car pack after girder steel to Bridge Erector across;
3, the preceding suspender of preceding hoisting overhead travelling crane 5 is connect with girder steel one end;
4, preceding hoisting overhead travelling crane 5 promotes beam car before girder steel one end is detached from;
Step 2:
1, preceding hoisting overhead travelling crane 5 moves ahead with the linkage of rear beam car, stops behind girder steel rear end to 7 lower section of rear hoisting overhead travelling crane;
2,7 suspender of rear hoisting overhead travelling crane is connect with girder steel rear end;
3, rear hoisting overhead travelling crane 7 promotes beam car after girder steel rear end is detached from;
Step 3:
1, preceding hoisting overhead travelling crane 5 and the linkage vertical shift of rear hoisting overhead travelling crane 7 to precalculated position;
2, preceding hoisting overhead travelling crane 5 is laterally moved to precalculated position with the linkage of rear hoisting overhead travelling crane 7;
3, preceding hoisting overhead travelling crane 5 links with 7 hoisting system of rear hoisting overhead travelling crane, by steel girder erection in precalculated position;
Step 4:
1, new installation girder steel one end is welded and fixed with previous across girder steel;
Step 5:
1, Bridge Erector hangar system 6 is fixedly connected with new clothes girder steel, and the certain pulling force of prestretching;
2, span centre prefabricated bridge is installed on girder steel using preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7;
Step 6:
1,6 pretension of hangar system on Bridge Erector is loaded into final design requirement;
2, the wet seam of concrete between prefabricated bridge is poured, it is strong that Bridge Erector is stood etc.;
Step 7:
1, front outrigger for bridge girder erection machine 2 and main supporting leg 3 decline, complete machine unloading;
2, it by 6 hydraulic cylinder off-load of hangar system on Bridge Erector, is connected being released between hangar system on Bridge Erector 6 and girder steel;
Step 8:
1, the intermediate transverse girder 6e of hangar system 6 is removed;
2, Bridge Erector prepares via.
The Bridge Erector via process carries out according to the following steps successively:
Step 1:
1, preceding hoisting overhead travelling crane 5 is along erection direction traveling to Bridge Erector front end;
2, rear support leg 4 supports bridge floor;
3, across good at 2 rear station of front leg strut, front leg strut 2 comes to nothing before main supporting leg 3 is transported to by rear hoisting overhead travelling crane 7;
Step 2:
1,7 traveling of rear hoisting overhead travelling crane to Bridge Erector front end and preceding hoisting overhead travelling crane 5 is close;
2, rear support leg 4 is detached from bridge floor;
Step 3:
1, two main supporting legs, 3 carrying roller supports, and pushes hydraulic oil cylinder driving, 1 via of Bridge Erector main frame;
2,1 via 20m of Bridge Erector main frame, 31 top of main supporting leg before preceding hoisting overhead travelling crane 5 is retracted into preceding hoisting overhead travelling crane 7, Bridge Erector continues via, and hoisting overhead travelling crane, which synchronizes, to be retreated;
Step 4:
1,35~55m of Bridge Erector via stops, 32 top of main supporting leg after preceding hoisting overhead travelling crane 5 is retreated to rear hoisting overhead travelling crane 7;
2, Bridge Erector main frame 1 continues via, and forward and backward hoisting overhead travelling crane, which synchronizes, to be retreated;
Step 5:
1, Bridge Erector longitudinal direction via in place, stand in front top of bridge pier by front leg strut 2;
2, front leg strut 2 jacks, and absolute altitude is consistent at main supporting leg 3;
Step 6:
1, at 5 traveling of preceding hoisting overhead travelling crane to 3 16~20m of rear of main supporting leg;
2, at 7 traveling of rear hoisting overhead travelling crane to 3 1~3m of rear of main supporting leg;
3, across preparing to set a roof beam in place after beam car fortune beam to Bridge Erector.
It reversely constructs by Bridge Erector and carries out steering operation, direction is set up as front using original, direction in contrast is rear; The reversed construction operation of Bridge Erector carries out according to the following steps:
Step 1:
1, last hole construction finishes, all supporting legs all in beam face more than;
2, two sets of main supporting legs are equipped with, two sets of main supporting legs 3 are respectively preceding main supporting leg 31 and rear main supporting leg 32, two main supporting legs 3 Bridge formation owner frame 1 is supported with front leg strut 2;
Step 2:
1, rear support leg 4 supports, and rear main supporting leg 32 is transported to the support of the places 8m, preceding lifting before the pier top of rear by preceding hoisting overhead travelling crane 5 5 traveling of overhead traveling crane is to Bridge Erector front end;
2, rear support leg 4 comes to nothing, and rear main supporting leg 32 supports, and rear support leg 4 is hoisted to 2 rear 1m of front leg strut by rear hoisting overhead travelling crane 7 Place's installation, diagonal brace wouldn't be installed;
Step 3:
1, rear support leg 3 support, 5 handling front leg strut 2 of preceding hoisting overhead travelling crane be transported to after across installation;
Step 4:
2, front leg strut 2 supports, and 5 handling rear main leg 3 of preceding hoisting overhead travelling crane is transported to 3 posterior support of main supporting leg, by preceding main supporting leg 31 rotation 90o supports;
Step 5:
1,5 handling rear main leg 3 of preceding hoisting overhead travelling crane to rear support leg rear is installed;
2, rear main supporting leg 32 supports, and installs 4 diagonal brace of rear support leg;It is mutual with rear support leg 3 that front outrigger for bridge girder erection machine 2 is completed at this time Transposition;Complete the conversion of 3 direction of main supporting leg;
Step 6:
1, main supporting leg 3, front leg strut 2,4 connection of rear support leg are adjusted;
2, hangar system 6 to precalculated position is adjusted using hoisting overhead travelling crane 5 to reinstall.So far Bridge Erector is completed reversely to construct Adjustment.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.

Claims (3)

1. a kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector, including main frame(1), preceding lifting for lifting girder steel Overhead traveling crane(5)With rear hoisting overhead travelling crane(7), preceding hoisting overhead travelling crane(5)With rear hoisting overhead travelling crane(7)In main frame(1)It is moved in top rail; It is characterized in that:It further include the hangar system that prestretching is carried out to having set up girder steel(6), the hangar system(6)It is connected to main frame Frame(1)Bottom;Hangar system(6)It is made of multiple hanging units, each hanging unit includes two tail trimmers(6a), sliding It is connected to tail trimmer(6a)On hanging twisted steel(6b), jacking cylinder(6c), swinging seat(6d), intermediate transverse girder(6e);Hyphen Beam(6a)Pass through swinging seat(6d)With main frame(1)It is hinged, the intermediate transverse girder(6e)It is connected to two tail trimmers(6a)Between, Hang twisted steel(6b)Lower end for fixing girder steel, upper end passes through tail trimmer(6a), the jacking cylinder(6c)It is fixed on short Crossbeam(6a)Upper end, jacking cylinder(6c)Drive hanging twisted steel(6b)It moves up and down.
2. the boom hoisting of large span steel reinforced concrete combination beam Bridge Erector according to claim 1, it is characterised in that:Preceding hoisting overhead travelling crane (5)Preceding jack up unit including promoting girder steel(5a), along main frame(1)The preceding vertical shift mechanism of longitudinal movement(5b), along main frame (1)The preceding transverse-moving mechanism of transverse shifting(5c), preceding rotary hanger(5d);Hoisting overhead travelling crane afterwards(7)Including:Hoisting system afterwards(7a), Vertical shift mechanism afterwards(7b), rear transverse-moving mechanism(7c), rear suspender(7d).
3. the boom hoisting of large span steel reinforced concrete combination beam Bridge Erector according to claim 2, it is characterised in that:The main frame (1)Including girder(1a), connection beam(1b);Preceding hoisting overhead travelling crane(5)With rear hoisting overhead travelling crane(7)By motor reducer drives edge girder (1a)Longitudinal traveling, hangar system(6)It is arranged in girder(1a)At the top of lower boom.
CN201820559827.XU 2018-04-19 2018-04-19 A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector CN208087078U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629422A (en) * 2018-11-28 2019-04-16 中交第二航务工程局有限公司 A kind of new Bridge Erector traverses over width method
CN110258352A (en) * 2019-07-31 2019-09-20 河南省交通规划设计研究院股份有限公司 The steel reinforced concrete combined bridge construction method that two bridgings are done
CN110344334A (en) * 2019-07-31 2019-10-18 河南省交通规划设计研究院股份有限公司 Steel reinforced concrete combined bridge construction method is done using two bridgings of dorsal funciculus formula Bridge Erector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629422A (en) * 2018-11-28 2019-04-16 中交第二航务工程局有限公司 A kind of new Bridge Erector traverses over width method
CN110258352A (en) * 2019-07-31 2019-09-20 河南省交通规划设计研究院股份有限公司 The steel reinforced concrete combined bridge construction method that two bridgings are done
CN110344334A (en) * 2019-07-31 2019-10-18 河南省交通规划设计研究院股份有限公司 Steel reinforced concrete combined bridge construction method is done using two bridgings of dorsal funciculus formula Bridge Erector

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