CN208533370U - A kind of Bridge Erector of large span steel reinforced concrete combination beam erection construction - Google Patents
A kind of Bridge Erector of large span steel reinforced concrete combination beam erection construction Download PDFInfo
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- CN208533370U CN208533370U CN201820559828.4U CN201820559828U CN208533370U CN 208533370 U CN208533370 U CN 208533370U CN 201820559828 U CN201820559828 U CN 201820559828U CN 208533370 U CN208533370 U CN 208533370U
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Abstract
The utility model discloses a kind of Bridge Erectors of large span steel reinforced concrete combination beam erection construction, including main frame, leg system, preceding hoisting overhead travelling crane, rear hoisting overhead travelling crane, affiliated facility, hydraulic system and electric-control system, leg system includes the front leg strut being sequentially arranged along longitudinal direction from front to back below main frame, main supporting leg, rear support leg, it further include to the hangar system for having set up girder steel progress prestretching, hangar system is connected to the bottom of main frame；The lower end of hangar system is fixed when building bridge with girder steel, upward prestretching girder steel, and main supporting leg includes two straddle, and each straddle includes carrying roller, guiding mechanism, support post, first base, traverse beam, distribution beam；Main supporting leg is symmetrical structure, and guiding mechanism play the guiding role during main frame slides, and prevents main frame offset track.It is laid with prefabricated bridge on the girder steel sling, meets the technique requirement of steel reinforced concrete combination Beams Erection Construction.
Description
Technical field
It is specifically a kind of to be used for the whole hole of large span steel reinforced concrete combination beam the utility model relates to engineering mechanical device technical field
The Bridge Erector of erection construction is related specifically to the construction suitable for long-span highway bridge.
Background technique
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, for reduction construction investment, mostly uses Longspan Bridge to design, how in Longspan Bridge
Investment is reduced in construction, is improved and is set up quality, more stringent requirements are proposed to Bridge Erector adaptability.
Bridge Erector commonly used by this stage does 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 steel of single span 80m be at present maximum simple bridge across；Existing Bridge Erector itself cannot achieve to having set up steel
Beam is lifted up, and provides biggish lifting force more beyond example；Existing steel reinforced concrete conjugative bridge is mostly cable-stayed bridge, suspension bridge residence
It is more, using welding 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；During existing Bridge Erector via hole traveling to require beam face steel rail laying, the design girder steel is opening more
Running mechanism can not be arranged in bridge floor in box-type section.It is required to adapt to the innovative design of steel reinforced concrete combined box beam full span erection, and
The quality requirement that design and construction can be reached develops a kind of economic, practical, efficient construction equipment for such actual demand, will
It is one of the best means solved the problems, such as.
Utility model content
The utility model aim is just to provide for a kind of Bridge Erector for large span steel reinforced concrete combination beam erection construction, 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 Bridge Erector of large span steel reinforced concrete combination beam erection construction, 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.
The leg system include the front leg strut 2 being sequentially arranged along longitudinal direction from front to back below main frame 1, main supporting leg 3,
Rear support leg 4 further includes to the hangar system 6 for having set up girder steel progress prestretching, and the hangar system 6 is connected to the bottom of main frame 1
Portion；Hangar system 6 is made of multiple hanging units, and each hanging unit is vertically slided including two tail trimmer 6a, with tail trimmer 6a
Hanging twisted steel 6b, the jacking cylinder 6c, swinging seat 6d, intermediate transverse girder 6e of dynamic cooperation；Tail trimmer 6a passes through swinging seat 6d and master
Frame 1 is hinged, and the intermediate transverse girder 6e is connected between two tail trimmer 6a, and the lower end of hanging twisted steel 6b is for fixing steel
Beam, upper end pass through tail trimmer 6a, and the jacking cylinder 6c is fixed on the upper end of tail trimmer 6a, and jacking cylinder 6c drives hanging screw thread
Muscle 6b is moved up and down.During hanging, jacking cylinder is supplied to the upward pulling force of tail trimmer 6a.
The lower end for hanging twisted steel 6b is fixed when building bridge with girder steel, upward prestretching girder steel, is laid with prefabricated bridge floor on girder steel
Plate, the pouring reinforcement concrete on prefabricated bridge, the pulling force hung in casting process on twisted steel 6b is gradually increased, until reaching
To maximum value.The setting of intermediate transverse girder is to dismantle for convenience, flexibly dismantles in via hole or reversed construction, prevents from interfering.
Preceding hoisting overhead travelling crane 5 includes the preceding hoisting system 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 suspender 5d.
Hoisting overhead travelling crane 7 includes: rear hoisting system 7a, rear vertical shift mechanism 7b, rear transverse-moving mechanism 7c, rear suspender 7d afterwards；
Main supporting leg 3 includes two symmetrically arranged straddle, the support that each straddle includes and is from top to bottom fixedly connected sequentially
Roller 3a, guiding mechanism 3b, support post 3c, first base 3f, traverse beam 3j, distribution beam 3i；Support post 3c and pedestal 3f it
Between be equipped with first and adjust oil cylinder 3e, the outside of support post 3c is equipped with anchor rod 3d, and the inside of pedestal 3f is equipped with the first cross sliding machine
Structure 3h；The lower end of distribution beam 3i is fixedly connected with bridge pier, is connected between the upper end and traverse beam 3j of distribution beam 3i with free bearing；The master
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, sets on the inside of the carrying roller 3a
There is vertical pushing mechanism 3g, indulges pushing mechanism 3g and be equipped with piston shoes, the side of the main frame 1 is equipped with rows of pin hole, and described indulge pushes away machine
Structure 3g is sequentially inserted into pin hole promotion 1 stepping of main frame by pushing and pulling piston shoes.Main supporting leg is symmetrical structure, and guiding mechanism 3b is in main frame
Frame play the guiding role during sliding, and prevents main frame offset track.
The main supporting leg 3 there are two settings, is referred to as preceding main supporting leg 31 and rear main supporting leg 32 before and after main frame.
Front leg strut 2 includes lower beam 2d, and the lower beam is equipped with symmetrical two groups of foreleg columns 2a, shoulder pole girder 2b, the
One guide post 2g, the second lifting cylinder 2c, second base 2e, the first guide post 2g are fixedly connected with second base 2e, foreleg column 2a
It is slidably connected with the first guide post 2g, the middle part of shoulder pole girder 2b is fixedly connected with the first guide post 2g, and both ends are respectively oily with the second lifting
Cylinder 2c is fixedly connected, and the second lifting cylinder 2c drives column 2a sliding opposite with the first guide post 2g, two second base 2e
Between connection the second transverse-moving mechanism 2f for driving second base 2e mobile to both sides, the upper end the column 2a passes through the first 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 connection
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.
Rear support leg 4 include: the second upper beam 4c, diagonal brace 4a, back leg column 4b, third adjust oil cylinder 4d, the second guide post 4f,
Third pedestal 4e；Second upper end upper beam 4c is fixedly connected with main frame, and the lower end of the second upper beam 4c and back leg column 4b are cut with scissors
It connects, back leg column 4b is carried out oblique pull with main frame 1 and fixed by diagonal brace 4a, the second lower end guide post 4f and the fixed company of third pedestal 4e
Connect, back leg column 4b is slidably connected with the second guide post 4f, third adjust oil cylinder 4d drive back leg column 4b and the second guide post 4f into
The opposite sliding of row.
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 traveling, hangar system 6 is arranged at the top of girder 1a lower boom.
Usual leg system supports main frame 1, and preceding hoisting overhead travelling crane 5 is moved up with rear hoisting overhead travelling crane 7 in 1 top rail of main frame
Dynamic, hangar system 6 is arranged in above 1 lower edge of main frame, vertical with chord member axis.
It sets a roof beam in place state, front leg strut 2, main supporting leg 3 support main frame 1, and preceding hoisting overhead travelling crane 5 is with rear hoisting overhead travelling crane 7 in Bridge Erector
Afterwards across successively lifting beam body, linkage vertical shift is to preceding across passing through the shifting running mechanism in length and breadth of preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7
And hoisting system adjustment, beam is mounted on suitable position, completes the welding between girder steel and front span beam.Hangar system 6 by girder steel with
Then prefabricated bridge is mounted on using preceding hoisting overhead travelling crane 5 with rear hoisting overhead travelling crane 7 by the certain pulling force of prestretching between crane's major girder
On frame girder steel, then hangar system pulling force is increased to final pulling force, pours and connect wet seam between prefabricated bridge, reach to intensity
Post-stretching floorings, hangar system 6 are unloaded and are come to nothing with frame girder steel, and Bridge Erector is ready for via hole.
Via hole state, two main 3 carrying roller of 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 main 3 structures of supporting leg and function are the same, and preceding hoisting overhead travelling crane 5 rises with rear
Weight overhead traveling crane 7 can move in 1 length range of main frame along track is arranged at the top of main frame 1.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.
Compared with prior art:
Bridge Erector involved in the utility model can first install girder steel, be laid with prefabricated bridge on the girder steel being lifted,
Casting concrete beam on the basis of the two meets the technique requirement of steel reinforced concrete combination Beams Erection Construction.In not large tonnage crane
The movement of opposite direction construction oneself can be completed under conditions of auxiliary；Bridge Erector complete machine structure uses a set of main frame 1, four supporting legs
Structure, the design of 1 vertical, horizontal holohedral symmetry of main frame.Front leg strut 2, rear support leg 4 are fixed supporting leg, and front leg strut 2 has traverse moving function,
Main supporting leg 3 is movable supporting legs, and carrier roller is directly contacted with the orbit square steel of girder 1a lower edge, and complete machine has traverse moving function, is met
Curve bridge construction；Vertical transverse-moving mechanism is arranged with rear hoisting overhead travelling crane 7 in preceding hoisting overhead travelling crane 5, by motor reducer driving overhead traveling crane along girder
It is laterally run in the traveling of the longitudinal direction 1a or traverse beam, meets steel beam position and vertically and horizontally adjust；Bridge Erector hangar system 6 can give girder steel
Lifting power upwards is provided, bridge structure is optimized, girder steel is reduced and designs steel using amount；The each via hole erect-position of Bridge Erector can complete a left side
Right double width gantry is set.Production and construction efficiency can be improved, the effective rate of utilization of material is improved.
Detailed description of the invention
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 embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig. 1.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification
Revealed content is not intended to limit the utility model enforceable limit 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 still fall in the revealed skill of the utility model under the effect of the utility model can be generated and the purpose that can reach
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, it is opposite to close
System is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
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,
For lifting the preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7, affiliated facility 8, hydraulic system 9 and electric-control system 10 of girder steel, preceding lifting
Overhead traveling crane 5 moves in 1 top rail of main frame with rear hoisting overhead travelling crane 7.
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 working 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 with lower pressure and directly returns to oil by overflow valve
Case starts empty load of motor, 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.
Bridge Erector electric-control system 10 uses modularity control mode, and electric-control system 10 includes: 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 include the front leg strut 2 being sequentially arranged along longitudinal direction from front to back below main frame 1, main supporting leg 3,
Rear support leg 4.It further include to the hangar system 6 for having set up girder steel progress prestretching.
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 for sliding vertically with tail trimmer 6a cooperation, jacking cylinder 6c, shakes
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 for fixing girder steel, upper end, and the jacking cylinder 6c is solid
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 for hanging twisted steel 6b is fixed when building bridge with girder steel, upward prestretching girder steel, is laid with prefabricated bridge floor on girder steel
Plate, the pouring reinforcement concrete on prefabricated bridge, the pulling force hung in casting process on twisted steel 6b is gradually increased, until reaching
To maximum value.The setting of intermediate transverse girder is to dismantle for convenience, flexibly dismantles in via hole 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 suspender 5d.
As shown in Figure 10, rear hoisting overhead travelling crane 7 include: rear 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 connection；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 there are two settings, is referred to as preceding main supporting leg 31 and rear main supporting leg 32 before and after main frame.
As shown in figure 3, front leg strut 2 includes lower beam 2d, the lower beam 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, and two the
The second transverse-moving mechanism 2f that connection drives second base 2e mobile to both sides between two pedestal 2e, the upper end 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 connection
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: the second upper beam 4c, diagonal brace 4a, back leg column 4b, third adjusting oil cylinder
4d, the second guide post 4f, third pedestal 4e；Second upper end upper beam 4c is fixedly connected with main frame, the lower end of the second upper beam 4c
Hinged with back leg column 4b, back leg column 4b is carried out oblique pull with main frame 1 and fixed by diagonal brace 4a, the second lower end guide post 4f and third
Pedestal 4e is fixedly connected, and back leg column 4b is slidably connected with the second guide post 4f, third adjust oil cylinder 4d drive back leg column 4b with
Second guide post 4f carries out opposite sliding.
The main frame 1 as shown in Figure 8 includes girder 1a, connection beam 1b；Preceding hoisting overhead travelling crane 5 and rear hoisting overhead travelling crane 7 are by electricity
Machine speed reducer drives edge girder 1a longitudinal direction traveling, hangar system 6 are arranged at the top of girder 1a lower boom.
Usual leg system supports main frame 1, and preceding hoisting overhead travelling crane 5 is moved up with rear hoisting overhead travelling crane 7 in 1 top rail of main frame
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, and preceding hoisting overhead travelling crane 5 rises with rear
Weight overhead traveling crane 7 is across successively lifting beam body after Bridge Erector, 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
System 6, then will be prefabricated with rear hoisting overhead travelling crane 7 using preceding hoisting overhead travelling crane 5 by the certain pulling force of prestretching between girder steel and crane's major girder
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 reaches post-stretching floorings to intensity, and hangar system 6 is unloaded and come to nothing with frame girder steel, and Bridge Erector is ready for via hole.
Via hole state, two main 3 carrying roller of 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 main 3 structures of supporting leg and function are the same, and preceding hoisting overhead travelling crane 5 rises with rear
Weight overhead traveling crane 7 can move in 1 length range of main frame along track is arranged at the top of main frame 1.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, comprising the following steps:
1 carries out operation of setting a roof beam in place by girder erection by bridging machine process；
2 carry out via hole operation by Bridge Erector via hole process.
The girder erection by bridging machine process successively sequentially includes the following steps:
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 rear 7 lower section of hoisting overhead travelling crane；
2, rear 7 suspender of 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 rear hoisting overhead travelling crane 7 linkage vertical shift to predetermined position；
2, preceding hoisting overhead travelling crane 5 is laterally moved to predetermined position with the linkage of rear hoisting overhead travelling crane 7；
3, preceding hoisting overhead travelling crane 5 links with rear 7 hoisting system of hoisting overhead travelling crane, by steel girder erection in predetermined position；
Step 4:
1, new installation girder steel one end is welded and fixed with previous across girder steel；
Step 5:
1, being fixedly connected with new clothes girder steel by Bridge Erector hangar system 6, and the certain pulling force of prestretching；
2, span centre prefabricated bridge is installed on girder steel with rear hoisting overhead travelling crane 7 using preceding hoisting overhead travelling crane 5；
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, decline at front outrigger for bridge girder erection machine 2 and main supporting leg 3, complete machine unloading；
2, it by 6 hydraulic cylinder off-load of hangar system on Bridge Erector, is connected being released between hangar system 6 and girder steel on Bridge Erector；
Step 8:
1, the intermediate transverse girder 6e of hangar system 6 is removed；
2, Bridge Erector prepares via hole.
The Bridge Erector via hole process successively sequentially includes the following steps:
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, rear 7 traveling of 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 3 carrying roller of supporting leg support, pushes oil cylinder driving, 1 via hole of Bridge Erector main frame；
2,1 via hole 20m of Bridge Erector main frame, preceding hoisting overhead travelling crane 5 main 31 top of supporting leg before being retracted into preceding hoisting overhead travelling crane 7,
Bridge Erector continues via hole, and hoisting overhead travelling crane is synchronous to be retreated；
Step 4:
1,35~55m of Bridge Erector via hole stops, preceding hoisting overhead travelling crane 5 main 32 top of supporting leg after retreating to rear hoisting overhead travelling crane 7；
2, Bridge Erector main frame 1 continues via hole, and forward and backward hoisting overhead travelling crane is synchronous to be retreated；
Step 5:
1, Bridge Erector longitudinal direction via hole 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 preceding 5 traveling of hoisting overhead travelling crane to main 3 16~20m of rear of supporting leg；
2, at rear 7 traveling of hoisting overhead travelling crane to main 3 1~3m of rear of supporting leg；
3, across preparing to set a roof beam in place after beam car fortune beam to Bridge Erector.
It further comprises the steps of: reversely to construct by Bridge Erector and carries out steering operation, direction is set up as front, in contrast using original
Direction is rear；The reversed construction operation of Bridge Erector sequentially includes 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 place 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, preceding 5 handling front leg strut 2 of hoisting overhead travelling crane be transported to after across installation；
Step 4:
2, front leg strut 2 supports, and preceding 5 handling rear main leg 3 of hoisting overhead travelling crane is transported to main 3 posterior support of supporting leg, by preceding main supporting leg
31 rotation 90o supports；
Step 5:
1, preceding 5 handling rear main leg 3 of 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 completes front outrigger for bridge girder erection machine 2 at this time and rear support leg 3 is mutual
Transposition；Complete main 3 direction of supporting leg conversion；
Step 6:
1, main supporting leg 3, front leg strut 2,4 connection of rear support leg are adjusted；
2, hangar system 6 to predetermined 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, and not for limitation, this is practical new
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 or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (7)
1. a kind of Bridge Erector of large span steel reinforced concrete combination beam erection construction, 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 lifting
Overhead traveling crane (5) moves in main frame (1) top rail with rear hoisting overhead travelling crane (7)；The leg system is included under main frame (1)
Front leg strut (2), main supporting leg (3), the rear support leg (4) that side is sequentially arranged along longitudinal direction from front to back, it is characterised in that:
It further include to the hangar system (6) for having set up girder steel progress prestretching, the hangar system (6) is connected to main frame (1)
Bottom；Hangar system (6) is made of multiple hanging units, and each hanging unit includes two tail trimmers (6a) and tail trimmer
(6a) slides vertically hanging twisted steel (6b), jacking cylinder (6c), swinging seat (6d), the intermediate transverse girder (6e) of cooperation；Tail trimmer
(6a) hingedly by swinging seat (6d) and main frame (1), the intermediate transverse girder (6e) is connected between two tail trimmers (6a), hangs
The lower end for hanging twisted steel (6b) passes through tail trimmer (6a) for fixing girder steel, upper end, and the jacking cylinder (6c) is fixed on hyphen
The upper end of beam (6a), jacking cylinder (6c) drive hanging twisted steel (6b) to move up and down；
The main supporting leg (3) includes two symmetrically arranged straddle, and each straddle includes and is from top to bottom fixedly connected sequentially
Carrying roller (3a), 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), bottom
The inside of seat (3f) is equipped with the first transverse-moving mechanism (3h)；The lower end of distribution beam (3i) is fixedly connected with bridge pier, distribution beam (3i)
It is connect between upper end and traverse beam (3j) with free bearing；The main frame (1) is slidably connected with carrying roller (3a), the carrying roller (3a) it is upper
End is fixedly connected with guiding mechanism (3b), and the inside of the carrying roller (3a) is equipped with vertical pushing mechanism (3g), is set on vertical pushing mechanism (3g)
There are piston shoes, the side of the main frame (1) is equipped with rows of pin hole, and the vertical pushing mechanism (3g) is sequentially inserted by pushing and pulling piston shoes
Pin hole pushes main frame (1) stepping.
2. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 1, it is characterised in that: the front leg strut
It (2) include lower beam (2d), the lower beam (2d) is equipped with symmetrical two groups of foreleg columns (2a), shoulder pole girder (2b), 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 two
End is respectively fixedly connected with the second lifting cylinder (2c), and second lifting cylinder (2c) drives column (2a) and the first guide post (2g)
The second transverse-moving mechanism opposite to slide, that connection drives second base (2e) mobile to both sides between two second bases (2e)
(2f), the column upper end (2a) are fixedly connected by the first upper beam (2h) with main frame (1).
3. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 2, it is characterised in that: described first is horizontal
Telephone-moving structure (3h) and two first are connected to including the first traversing oil cylinder (3h1) and first connecting rod (3h2), first connecting rod (3h2)
Between pedestal (3f), second transverse-moving mechanism (2f) includes the second traversing oil cylinder (2f1) and second connecting rod (2f2), and described the
Two connecting rods (2f2) are connected between two second bases (2e).
4. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 2, it is characterised in that: the rear support leg
It (4) include: that the second upper beam (4c), diagonal brace (4a), back leg column (4b), third adjust oil cylinder (4d), the second guide post (4f), the
Three pedestals (4e)；The upper end second upper beam (4c) is fixedly connected with main frame, the lower end of the second upper beam (4c) and back leg column
(4b) hingedly, back leg column (4b) is carried out oblique pull with main frame (1) and fixed by diagonal brace (4a), the second guide post lower end (4f) and third
Pedestal (4e) is 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) and the second guide post (4f) carry out opposite sliding.
5. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 4, it is characterised in that: the main supporting leg
(3) it is referred to as preceding main supporting leg (31) and rear main supporting leg (32) there are two settings before and after main frame.
6. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 5, it is characterised in that: preceding hoisting overhead travelling crane
(5) include promoted girder steel preceding hoisting system (5a), along main frame (1) longitudinal movement preceding vertical shift mechanism (5b), along main frame
(1) the preceding transverse-moving mechanism (5c) of transverse shifting, preceding suspender (5d)；Hoisting overhead travelling crane (7) includes: rear hoisting system (7a), indulges afterwards afterwards
Telephone-moving structure (7b), rear transverse-moving mechanism (7c), rear suspender (7d).
7. the Bridge Erector of large span steel reinforced concrete combination beam erection construction according to claim 6, it is characterised in that: the main frame
It (1) include girder (1a), connection beam (1b)；Preceding hoisting overhead travelling crane (5) and rear hoisting overhead travelling crane (7) are by motor reducer drives edge girder
(1a) longitudinal direction traveling, hangar system (6) are arranged at the top of girder (1a) lower boom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820559828.4U CN208533370U (en) | 2018-04-19 | 2018-04-19 | A kind of Bridge Erector of large span steel reinforced concrete combination beam erection construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944122A (en) * | 2019-04-03 | 2019-06-28 | 林最隆 | A kind of railway track laying device |
| CN112853997A (en) * | 2021-02-05 | 2021-05-28 | 中交一公局集团有限公司 | Construction method of large-span steel-concrete bridge |
| CN112854017A (en) * | 2021-02-05 | 2021-05-28 | 中交一公局集团有限公司 | Reverse lifting hanging beam for erecting steel-concrete beam and bridge erecting machine |
-
2018
- 2018-04-19 CN CN201820559828.4U patent/CN208533370U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944122A (en) * | 2019-04-03 | 2019-06-28 | 林最隆 | A kind of railway track laying device |
| CN109944122B (en) * | 2019-04-03 | 2021-02-09 | 林最隆 | Railway track laying device |
| CN112853997A (en) * | 2021-02-05 | 2021-05-28 | 中交一公局集团有限公司 | Construction method of large-span steel-concrete bridge |
| CN112854017A (en) * | 2021-02-05 | 2021-05-28 | 中交一公局集团有限公司 | Reverse lifting hanging beam for erecting steel-concrete beam and bridge erecting machine |
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