CN206800211U - Constructed by cross for precast segmental beam the main frame structure of Bridge Erector - Google Patents
Constructed by cross for precast segmental beam the main frame structure of Bridge Erector Download PDFInfo
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- CN206800211U CN206800211U CN201720586528.0U CN201720586528U CN206800211U CN 206800211 U CN206800211 U CN 206800211U CN 201720586528 U CN201720586528 U CN 201720586528U CN 206800211 U CN206800211 U CN 206800211U
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Abstract
Constructed by cross the main frame structure of Bridge Erector for precast segmental beam the utility model discloses a kind of, including main frame, leg system and Overhead travelling crane system, leg system is included in below main frame from front to back along the No.1 supporting leg being longitudinally sequentially arranged, No. two supporting legs, No. three supporting legs and No. four supporting legs, Overhead travelling crane system is on the vertical shift track at the top of main frame, main frame includes box girder and is fixedly connected on the truss nose girder at box girder both ends, and main frame is laterally symmetrical structure, centre is connected using connection beam mechanism；Main frame top surface sets two vertical shift tracks to be used for Overhead travelling crane system traveling；Overhead travelling crane system is included in the main overhead traveling crane that is run on the outside of main frame on vertical shift track and in the assistant crown block run on the inside of main frame on vertical shift track.The utility model can be by the use of the main overhead traveling crane on main frame and assistant crown block as counterweight, and longitudinal stability is high, meets the construction demand of high speed railway prefabricating beam sections.
Description
Technical field
It the utility model is related to high-speed railway construction technical field, and in particular to one kind is constructed by cross for precast segmental beam
The main frame structure of Bridge Erector.
Background technology
It is various types of especially in high-speed railway construction construction with China's science and technology and the fast development of infrastructure
The Bridge Erector of type is widely used, and improves the speed of application and quality of railway.But due to the public affairs of Along Railway distribution
The sensitizing ranges such as road, natural water source protection zone, military installations are more, and execution conditions are complicated, adapt to Bridge Erector the ability of circuit
Propose higher requirement.
Although Bridge Erector has been widely used in high-speed railway construction at this stage, the shortcomings that existing is also to avoid
's：The main frame structure stress of existing Bridge Erector is indefinite, and stability is poor, influences construction safety；And existing Bridge Erector
In via, the longitudinal stability that counterweight improves complete machine need to be increased, supporting leg, which switches position, needs the auxiliary of large tonnage crane.
Thus it is more and more urgent to the demand of high speed railway prefabricating beam sections construction equipment special.
Utility model content
The utility model is in order to solve weak point of the prior art, there is provided one kind is constructed by cross for precast segmental beam
The main frame structure of Bridge Erector, its longitudinal stability is high, ensures construction safety, meets the construction of high speed railway prefabricating beam sections
Demand.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：Constructed by cross for precast segmental beam
The main frame structure of Bridge Erector, including main frame 1, leg system and Overhead travelling crane system, leg system be included in the lower section of main frame 1 by
The supporting leg 4 of supporting leg 3, three of No.1 supporting leg 2, two and No. four supporting legs 5 that A-P edge is longitudinally sequentially arranged, wherein No.1 supporting leg 2
Propped up respectively positioned at the both ends of main frame 1 as Auxiliary support supporting leg, No. two supporting legs 3 and No. three supporting legs 4 for heavy duty with No. four supporting legs 5
Supporting leg is supportted, on the vertical shift track at the top of main frame 1, main frame 1 includes box girder 1a and is fixedly connected on Overhead travelling crane system
The truss nose girder 1b at box girder 1a both ends, and main frame 1 is laterally symmetrical structure, centre is connected using connection beam mechanism；It is main
The top surface of framework 1 sets two vertical shift tracks to be used for main overhead traveling crane 6 and the traveling of assistant crown block 7；
The connection beam mechanism include be correspondingly arranged with No. two supporting legs 3 and No. three supporting legs 4 two connection beam 11c, be located at
Two connection beam 21d in the centre position of the main frame 1 and connection beam 31e for being located at the rear end of main frame 1, connection beam 11c are box
Structure, with box girder 1a bolt connections, connection beam 21d is box-structure, is connected with box girder 1a bearing pins and forms transverse direction
Rotatable engagement, connection beam 31e are truss structure, are connected with truss nose girder 1b bearing pins；
Overhead travelling crane system is included in the main overhead traveling crane 6 that is run on the outside vertical shift track of main frame 1 and in the inner side vertical shift rail of main frame 1
The assistant crown block 7 run on road.
The main overhead traveling crane 6 includes hoisting system 6a, transverse-moving mechanism 6b, overhead traveling crane door frame 6c, walking system 6d and crown block sling
6e, hoisting system 6a are fixed on transverse-moving mechanism 6b, and transverse-moving mechanism 6b is placed in overhead traveling crane door frame 6c top cross-bars, transverse-moving mechanism
Relative can be slided between 6b and overhead traveling crane door frame 6c, overhead traveling crane door frame 6c connections walking system 6d, hoisting system 6a by steel wire rope and
Crown block sling 6e connections, crown block sling 6e are provided with three-dimensional adjusting device.
The assistant crown block 7 includes hoisting system 7a, overhead traveling crane door frame 7b and walking system 7c, and hoisting system 7a is arranged on day
On car door frame 7b, overhead traveling crane door frame 7b connection walking systems 7c.
The beneficial effects of the utility model：
Rigid structure is integrally formed in main frame of the present utility model, and stress is clear and definite, and stability is good, and the utility model is in frame
Using main overhead traveling crane and assistant crown block as counterweight in bridge machine via, longitudinal stability is high, ensures construction safety.
Brief description of the drawings
Accompanying drawing 1 is overall structure front view of the present utility model；
Accompanying drawing 2 is the front view of main frame in the utility model；
Accompanying drawing 3 is the top view of main frame in the utility model；
Accompanying drawing 4 is the front view of No.1 supporting leg in the utility model；
Accompanying drawing 5 is the side view of No.1 supporting leg in the utility model；
Accompanying drawing 6 is the front view of No. two supporting legs in the utility model；
Accompanying drawing 7 is the side view of No. two supporting legs in the utility model；
Accompanying drawing 8 is the front view of No. three supporting legs in the utility model；
Accompanying drawing 9 is the side view of No. three supporting legs in the utility model；
Accompanying drawing 10 is the front view of No. four supporting legs in the utility model；
Accompanying drawing 11 is the side view of No. four supporting legs in the utility model；
Accompanying drawing 12 is that the sill of No. four supporting legs in the utility model is in the front view of open mode；
Accompanying drawing 13 is Figure 12 side view；
Accompanying drawing 14 is the front view of main overhead traveling crane in the utility model；
Accompanying drawing 15 is the side view of main overhead traveling crane in the utility model；
Accompanying drawing 16 is the front view of assistant crown block in the utility model；
Accompanying drawing 17 is the side view of assistant crown block in the utility model；
Accompanying drawing 18 is the side view that drop shot is hung in the utility model；
Accompanying drawing 19 is the side view of long hanging in the utility model；
Accompanying drawing 20 is A direction views in Figure 18；
Accompanying drawing 21 is B direction views in Figure 18；
Accompanying drawing 22 is C-C diagrammatic cross-sections in Figure 18；
Accompanying drawing 23 is the matched moulds view of wet joint template in the utility model；
Accompanying drawing 24 is the die opening state schematic diagram of wet joint template in the utility model；
Accompanying drawing 25 is one of schematic diagram of girder erection by bridging machine process of the present utility model；
Accompanying drawing 26 is the two of the schematic diagram of girder erection by bridging machine process of the present utility model；
Accompanying drawing 27 is the three of the schematic diagram of girder erection by bridging machine process of the present utility model；
Accompanying drawing 28 is one of schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 29 is the two of the schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 30 is the three of the schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 31 is the four of the schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 32 is the five of the schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 33 is the six of the schematic diagram of Bridge Erector via process of the present utility model；
Accompanying drawing 34 is one of schematic top plan view of traversing process of the present utility model；
Accompanying drawing 35 is the two of the schematic top plan view of traversing process of the present utility model
Accompanying drawing 36 is the three of the schematic top plan view of traversing process of the present utility model；
Accompanying drawing 37 is the four of the schematic top plan view of traversing process of the present utility model.
Embodiment
The direction of arrow in accompanying drawing represents the erection direction for the Bridge Erector construction method constructed by cross for precast segmental beam.
As shown in figure 1, the Bridge Erector constructed by cross for precast segmental beam, including main frame 1, leg system, hanging system
System, wet joint template system and Overhead travelling crane system, leg system are included in what is be sequentially arranged from front to back along longitudinal direction below main frame
The supporting leg 4 of supporting leg 3, three of No.1 supporting leg 2, two and No. four supporting legs 5, wherein No.1 supporting leg 2 and No. four supporting legs 5 are located at main frame respectively
The both ends of frame 1 are as Auxiliary support supporting leg, and No. two supporting legs 3 and No. three supporting legs 4 are heavily loaded support leg, and hangar system is connected to master
The bottom of framework 1, wet joint template system are connected to the outside of main frame 1, vertical shift rail of the Overhead travelling crane system located at the top of main frame 1
On road.Further according to the performance and feature of Bridge Erector, accessory structure, hydraulic system, electrical system, safety monitoring system difference cloth
Put on each part, accessory structure, hydraulic system, electrical system, safety monitoring system use prior art.
As shown in Figure 4 and Figure 5, No.1 supporting leg 2 includes entablature 2a, the beam 2b that cranks arm, outer sleeve column 2c, jacking cylinder 2d, interior
Sleeve column 2e, contact framework 2f, adjustable supports 2g and increase section 2h, entablature 2a and main frame bolt connection, and entablature 2a
Lower section is transversely provided with two symmetrical beam 2b that crank arm, and beam 2b tops of cranking arm are hinged by horizontal bearing pin and entablature 2a, cranked arm
Beam 2b bottoms and outer sleeve column 2c bolt connections, interior sleeve column 2e slip caps are located in outer sleeve column 2c and positioned using alignment pin solid
It is fixed, jacking cylinder 2d is connected between interior sleeve column 2e and outer sleeve column 2c, the height of No.1 supporting leg 2 can be realized by jacking cylinder 2d
Regulation, to adapt to different deck-moldings, the construction demand of head fall；Interior sleeve column 2e bottoms are corresponding with increasing section 2h bolt connections
Two increase between section 2h using contacting framework 2f connections, the bottom for increasing section 2h is provided with regulation and supports 2g.End across when remove
Increase section 2h connecting bolts, No.1 supporting leg 2 supports in bridge floor.
As shown in Figure 6 and Figure 7, No. two supporting legs 3 include displacement chassis 3a, crossbeam 3b, column 3c and support cylinder 3d, displacement
Chassis 3a is slidably matched with main frame 1, and the lower railway of main frame 1 is placed directly within displacement chassis 3a slide, and shifts chassis 3a
The hydraulic pushing mechanism for promoting displacement chassis 3a to vertically move is provided between main frame 1, displacement chassis 3a is arranged on crossbeam 3b
Above and formed transverse shifting coordinates, and two symmetrical column 3c, column 3c tops and horizontal stroke are transversely provided with below crossbeam 3b
Beam 3b bolt connections, column 3c lower sections bolt connection support cylinder 3d；The sidepiece of No. two supporting legs 3 is provided with having set up bridge floor or pier
Push up the anchoring strut 3e that pre-buried spiral is anchored.
On the premise of safety, bearing capacity and pier top erect-position demand is ensured, the column 3c of No. two supporting legs 3 is L-type structure,
The design ensures that end prestressed stretch-draw is not influenceed by supporting leg erect-position to improve efficiency of construction as principle.Below each column 3c
Support cylinder 3d be set to two, corresponding two support cylinder 3d are arranged in the box-girder below column 3c, with arranging
Load-bearing anchor ear form No. two supporting legs 3 jacking apparatus, realize the adjustment of complete machine short transverse.
No. two supporting legs 3 are bridge formation owner's bearing force props, are supported under state of setting a roof beam in place in pier top, complete machine mistake is used as under via state
The power resources in hole coordinate with No. three supporting legs 4 promotes Bridge Erector via, and No. two supporting legs 3 and No. three supporting legs 4 use hydraulic pushing machine
Structure, without any auxiliary equipment, via can be completed by fully relying on equipment itself, and efficiency of construction is high, convenient and swift.In weight
During carrier beam, the large-tonnage support cylinder 3d of No. two configurations of supporting leg 3, it is easy to complete machine to unload, removes hanging spiral, greatly
Width improves work efficiency；During via, No. two supporting legs 3, which utilize, anchors strut 3e respectively with having set up the pre-buried screw thread of bridge floor, pier top
Reinforcing bar is anchored.
As shown in Figure 8 and Figure 9, No. three supporting legs 4 include displacement chassis 4a, crossbeam 4b and support cylinder 4c, displacement chassis 4a
It is slidably matched with main frame 1, the lower railway of main frame 1 is placed directly within displacement chassis 4a slide, and shifts chassis 4a and main frame
Be provided between frame 1 and promote the hydraulic pushing mechanisms that vertically move of displacement chassis 4a, displacement chassis 4a be arranged on crossbeam 4b and with
It forms transverse shifting and coordinated, and below the crossbeam utilizes bolt connection support cylinder 4c；The sidepiece of No. three supporting legs 4 is provided with having set up
The anchoring strut 4d that bridge floor or the pre-buried spiral of pier top are anchored.
The support cylinder 4c of the lower section of No. three supporting legs 4 is set to four, and four support cylinder 4c are arranged on crossbeam 4b case
In ellbeam, the jacking apparatus of No. three supporting legs 4 is formed with the load-bearing anchor ear of arranging, realizes the adjustment of complete machine short transverse.No. three branch
Leg 4 is bridge formation owner's bearing force props, is supported under state of setting a roof beam in place in pier top, under via state as complete machine via power resources and
No. two supporting legs 3, which coordinate, promotes Bridge Erector via.During heavy duty is set a roof beam in place, the large-tonnage support cylinder 4c of No. three configurations of supporting leg 4,
It is easy to complete machine to unload, removes hanging spiral, greatly improve work efficiency；During via, No. three supporting legs, which utilize, anchors strut
4d is anchored with having set up bridge floor spiral.
As shown in Figure 10 to Figure 13, No. four supporting legs 5 include outer sleeve column 5a, jacking cylinder 5b, interior sleeve column 5c, sill 5d and
Running mechanism 5f, the equal bolt connection of both lateral sides of the lower section of main frame 1 have outer sleeve column 5a, and interior sleeve column 5c slip caps are located at outer sleeve column
Fixed in 5a and using alignment pin positioning, jacking cylinder 5b is connected between interior sleeve column 5c and outer sleeve column 5a, passes through jacking cylinder
5b can realize the lift in height of No. four supporting legs 5, to adapt to the construction demand of different head falls.；Lead in two between sleeve column 5c
Cross sill 5d connections.
Sill 5d is divided into two sub- crossbeams by boundary of its center, passes through the detachable fixation of bolt between two sub- crossbeams
Connection, every is all provided with rack gear between sub- crossbeam and interior sleeve column 5c, rack gear includes being located under interior sleeve column 5c
The guide bracket 5e in portion, the driving gear 5g being arranged on guide bracket 5e and the rack 5h being arranged along the horizontal on sub- crossbeam, sub- crossbeam
Cooperation is slid laterally with corresponding guide bracket 5e, driving gear 5g is meshed with corresponding rack 5h；The bottom of every sub- crossbeam is equal
Connect running mechanism 5f.
During Bridge Erector via, running mechanism 5f is run on the track that bridge floor is laid；Between sill 5d and interior sleeve column 5c
Rack gear is connected, during girder erection by bridging machine, sill 5d middle bolt fastenings are removed, and it is horizontal to pass through rack gear sill 5d
To opening, beam car is from bridge formation drive end unit feeding beam.
As shown in figure 1, Overhead travelling crane system is included in the main overhead traveling crane 6 that is run on the outside vertical shift track of main frame 1 and in main frame
The assistant crown block 7 run on the inner side vertical shift track of frame 1, is independent of each other between main overhead traveling crane 6 and assistant crown block 7.
As shown in Figure 14 and Figure 15, main overhead traveling crane 6 includes hoisting system 6a, transverse-moving mechanism 6b, overhead traveling crane door frame 6c, walking system
6d and crown block sling 6e, hoisting system 6a are fixed on transverse-moving mechanism 6b, and transverse-moving mechanism 6b is placed on horizontal at the top of overhead traveling crane door frame 6c
Relative it can be slided between Liang Shang, transverse-moving mechanism 6b and overhead traveling crane door frame 6c, the 6c connections of overhead traveling crane door frame walking system 6d, hoisting system 6a
It is connected by steel wire rope with crown block sling 6e, crown block sling 6e is provided with three-dimensional adjusting device；Crown block sling 6e automaticities
Height, 360 ° of rotations can be achieved, and by three-dimensional adjusting device, realize that beam sections aerial statue adjusts, make beam sections exactitude position.
Crown block sling 6e uses prior art with three-dimensional adjusting device.
As shown in Figure 16 and Figure 17, assistant crown block 7 includes hoisting system 7a, overhead traveling crane door frame 7b and walking system 7c, raising
System 7a is arranged on overhead traveling crane door frame 7b, overhead traveling crane door frame 7b connection walking systems 7c.
As shown in Figure 18 to Figure 22, hangar system 8 is made up of multiple hanging units, and each hanging unit is included by hanging
Bar 8d is arranged in the main beam 8a of the lower section of main frame 1, and suspension rod 8d selects spiral, wherein, one group of longer hanging list of suspension rod
Member is referred to as length hanging, and one group of shorter hanging unit of suspension rod is referred to as drop shot extension, and the suspension rod 8d of long hanging top passes through master
The bracket in the outside of framework 1 and the clamp nut by arranging and the bracket clamping, the top for the suspension rod 8d that drop shot is hung pass through master
Framework 1 and the clamp nut by arranging and the clamping of main frame 1；
The suspension rod 8d of each hanging unit is provided with four, wherein two suspension rod arranged for interval are in main beam 8a left side and lead to
Fixed seat 8c is crossed to be connected with main beam 8a, fixed seat 8c include with seat under the fixed seat that main beam 8a is fixedly connected and with it is corresponding
The fixed seat seat of honour of two suspension rod connections, the fixed seat seat of honour and seat rigid connection under fixed seat；Other two suspension rod arranged for interval are in master
Crossbeam 8a right side is simultaneously connected by free bearing 8b with main beam 8a, and the free bearing 8b includes the free bearing being fixedly connected with main beam 8a
Lower seat and the free bearing seat of honour with the connection of corresponding two suspension rods, the free bearing seat of honour, by hinge, meet to set up with seat under free bearing
The requirement of curve circuit.
In work progress, hangar system 8 is connected with the suspender of main overhead traveling crane 6, complete beam sections lifting and beam block in length and breadth
The adjustment operation on slope, suspender and the conversion of the suspension suspension rod load of main frame 1 are realized by main overhead traveling crane 6, suspension rod uses finish rolling screw thread
Bar connecting, hang generally 4 stress, 3 points of balances.Bridge Erector is in feeding beam after adapting to bridge, by long hanging and short
The special arrangement of hanging, feeding beam is put without staggered floor after ensureing section beam bridge, safe efficient.
In the present embodiment, the hangar system 8 is put by two sets of long hangings and nine sets of drop shot dossals and formed, wherein a set of drop shot
Extension is located at center, and the longitudinally outboard that the drop shot is hung respectively symmetrically arranges two sets of length hangings, the longitudinally outboard of two sets long hanging
The respectively symmetrically remaining eight sets of drop shots of arrangement are hung.
As shown in figure 23 and figure 24, wet joint template system 9 includes hydraulic jack 9a, hanging external fin 9b, side form system 9c
With bed die system 9d, longitudinal arrangement is provided with least one set of hanging external fin unit on main frame 1, every group of hanging external fin unit is equal
Including two hanging external fin 9b for being separately positioned on the left and right sides of main frame 1, hanging external fin 9b and the outside of main frame 1 are be hinged, and
And connection rotary oil cylinder 9a forms rotatable system, side form system 9c and bed die system 9d between hanging external fin 9b and main frame 1
It is connected by adjusting strut with hanging external fin 9b；
When wet joint template system is in matched moulds state, two hanging external fin 9b of same group of hanging external fin unit drive with
Its side form system 9c connected and bed die system 9d docking；When wet joint template system is in die opening state, outside same group of hanging
Two hanging external fin 9b of rib unit drive connected side form system 9c and bed die system 9d separation.
, to drawing, prevent from pouring wet connect by spiral and internal model by hydraulic system matched moulds, external mold when pouring wet seam
Spillage during seam, after the completion of pre-stressing tendon tensioning, wet seam reaches some strength rank, screw-thread steel of the external mold to drawing in dismounting
Muscle, hanging external fin 9b Unscrews are made by hydraulic jack 9a, during Bridge Erector via, wet joint template 9 can avoid bridge pier, operation
It is simple and convenient, securely and reliably.
As shown in Figures 2 and 3, main frame 1 includes box girder 1a and is fixedly connected on the truss at box girder 1a both ends
Nose girder 1b, and main frame 1 is laterally symmetrical structure, centre is connected using connection beam mechanism；The top surface of main frame 1 sets two vertical shifts
Track is used for main overhead traveling crane 6 and the traveling of assistant crown block 7；
The connection beam mechanism include be correspondingly arranged with No. two supporting legs 3 and No. three supporting legs 4 two connection beam 11c, be located at
Two connection beam 21d in the centre position of the main frame 1 and connection beam 31e for being located at the rear end of main frame 1, connection beam 11c are box
Structure, with box girder 1a bolt connections, connection beam 21d is box-structure, is connected with box girder 1a bearing pins and forms transverse direction
Rotatable engagement, connection beam 31e are truss structure, are connected with truss nose girder 1b bearing pins
Rigid structure is integrally formed in the main frame 1, and stress is clear and definite, and stability is good.
Concrete operating principle of the present utility model is as follows：
Set a roof beam in place state：No. two supporting legs 3 and No. three support main frames 1 of supporting legs 4, beam car fortune beam sections to drive end unit of building bridge,
Beam sections, are arranged on main frame 1 by the main bale handle of overhead traveling crane 6 successively, and each beam sections 3 d pose is adjusted using main overhead traveling crane 6, are completed
Wet joint concrete → equal strength → the prestress steel of the wet joint template → cast of the wet joint size → installation of exactitude position → adjustment
Muscle Shu Zhangla → wet the joint template of opening；After the completion of whole hole tensioning, No. two supporting legs 3 and No. three oil cylinders of supporting leg 4 are shunk, and complete machine is unloaded
Carry, remove hanging, hanging is carried to beam car using assistant crown block 7 before Bridge Erector via, is transported to Liang Chang.Bridge Erector completes one
Bridge, which is set up, prepares via.
Via state：Main overhead traveling crane 6 and assistant crown block 7 are run to No. three tops of supporting leg 4, utilize No. two supporting legs 3 and No. three branch
The hydraulic system of leg 4 promotes 18.4 meters of vertical shift forward of main frame 1, and No.1 supporting leg 2 reaches front pier top pinner Support Position, adjustment
The support cylinder of No.1 supporting leg 2, in front, pier top supports；No. three supporting legs 4 and No. two supporting legs 3 distinguish via to front bridge floor and pier top
Support；No.1 of coming to nothing supporting leg 2,3, No. three supporting legs 4 of No. two supporting legs and No. four supporting legs 5 support, and start No. two supporting legs 3 and No. three supporting legs
4 hydraulic system promotes 31.6 meters of 1 vertical shift of main frame, reaches position of setting a roof beam in place.
As shown in Figure 25 to Figure 37, the utility model provides the construction for the Bridge Erector constructed by cross for precast segmental beam
Method, constructed according to 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 operation by Bridge Erector via process；
3 carry out cycle operation according to bridge length, step 1 to step 2, until a construction section completes；
As shown in Figure 25 to Figure 27, the girder erection by bridging machine process is carried out according to the following steps successively：
Step 1：
1st, Bridge Erector via in place, opens main frame connection beam 21d, prepares to set a roof beam in place；
2nd, beam car transports beam sections to drive end unit of building bridge, the main bale handle of overhead traveling crane 6, successively by number one beam sections to No. eight section
The drop shot that Duan Liang is arranged in 1 lower section on main frame is hung up；
3rd, main frame connection beam 21d is closed；
Step 2：
1st, main overhead traveling crane 6 puies forward No. nine beam sections to No. ten beam sections and is arranged in the long hanging of the lower section of main frame 1；
2nd, main overhead traveling crane 6 puies forward ride on Bus No. 11 beam sections, and drop shot of the rotation rear-mounted below main frame 1 is hung up；
3rd, long hanging corresponding to the main lifting of overhead traveling crane 6 No. nine beam sections to No. ten beam sections makes beam sections to assembled position
Put；
Step 3：
1st, be sequentially adjusted in each beam sections 3 d pose using main overhead traveling crane 6, complete the wet joint size of exactitude position → adjustment →
Wet joint concrete → the equal strength of wet joint template → cast → pre-stressing tendon tensioning → wet joint template of opening is installed；
2nd, after the completion of whole hole tensioning, the jacking cylinder of 3, No. three supporting legs 4 of No. two supporting legs shrinks, and complete machine unloading, removes hanging
System 8, hanging is carried to beam car using assistant crown block 7 before Bridge Erector via, be transported to Liang Chang；
As shown in Figure 28 to Figure 33, the Bridge Erector via process is carried out according to the following steps successively：
Step 1：
1st, Bridge Erector prepares via；
2nd, all suspension rod 8d of hangar system are lifted up about 3.5 meters；
3rd, No. two supporting legs 3 and No. 1 pre-buried spiral in beam sections beam face are anchored using strut；
Step 2：
1st, No. two supporting legs 3 and No. three supporting legs 4 support during via, and No.1 supporting leg 2 and No. four supporting legs 5 are in state of coming to nothing, main
Overhead traveling crane 6 and assistant crown block 7 are run to No. three tops of supporting leg 4, are pushed away using the hydraulic pushing mechanism of No. two supporting legs 3 and No. three supporting legs 4
18.4 meters of vertical shift, No.1 supporting leg 2 reach front pier top Support Position to dynamic main frame 1 forward；
2nd, the oil cylinder of No.1 supporting leg 2 is adjusted, No.1 supporting leg 2 is supported in front pier top；
Step 3：
1st, main overhead traveling crane 6 and assistant crown block 7 are run to No. two tops of supporting leg 3,2, No. two supporting legs 3 of No.1 supporting leg and No. four supporting legs
5 supports, No. three oil cylinders of supporting leg 4 shrink, and No. three supporting legs 4 is in state of coming to nothing；
2nd, start No. three supporting legs 4 hydraulic pushing mechanism, No. three supporting legs 4 voluntarily via to front set up bridge floor position away from
2 meters of pier center, No. three supporting legs 4 are supported, and anchored with beam face；
Step 4：
1st, release No. two supporting legs 3 to anchor with beam face, 2, No. three supporting legs 4 of No.1 supporting leg and No. four supporting legs 5 support, No. two supporting legs
3 oil cylinders shrink, and No. two supporting legs 3 is in state of coming to nothing；
2nd, start No. two supporting legs 3 hydraulic pushing mechanism, No. two supporting legs 3 voluntarily via to front pier top away from pier center
900mm, No. two supporting legs 3 support on the pinner of front, and utilize and anchor strut 3e by No. two supporting legs 3 and the pre-buried spiral of pier top
Anchored；
Step 5：
1st, main overhead traveling crane 6 and assistant crown block 7 are run to front truss nose girder position, No. four supporting legs 5 and lay track, No. two supporting legs
3rd, No. three supporting legs 4 and No. four supporting legs 5 support, and No.1 supporting leg 2 comes to nothing, and start the hydraulic pushing machine of No. two supporting legs 3 and No. three supporting legs 4
Structure promotes 1 vertical shift pre-determined distance of main frame, 12 meters of pauses；
2nd, No. four oil cylinders of supporting leg 5 are shunk, come to nothing No. four supporting legs 5, and No. two supporting legs 3 and No. three supporting legs 4 support；
Step 6：
1st, 19.6 meters of 1 vertical shift of hydraulic pushing mechanism urges main frame of No. two supporting legs 3 and No. three supporting legs 4 is started, until reaching
To position of setting a roof beam in place；
2nd, Bridge Erector via in place, the anchoring bearing pin of connection 3, No. three supporting legs 4 of No. two supporting legs and main frame 1, releases No. two
Supporting leg 3 anchors with pier top, adjusts the suspension rod of hangar system, and the sill 5d of No. four supporting legs 5 is laterally-opening；
3rd, prepare to set a roof beam in place.
Wherein, when No.1 supporting leg 2 reaches front pier top Support Position in the step of Bridge Erector via process two, No.1
Supporting leg 2 deviate bridge pier distance between center line 1190mm, now start traversing process, as shown in Figure 34 to Figure 37, traversing process press with
Lower step is carried out：
Step a：Start No. two supporting legs 3 in inner side from displacement chassis 3a to deflection curve propulsion 400mm, main frame 1 with
No. three supporting legs 4 are fixed point rotary；Now No.1 supporting leg deviates bridge pier center line 400mm；
Step b：Start No. three supporting legs 4 in outside from displacement chassis 4a to deflection curve propulsion 400mm, main frame 1 with
No. two supporting legs 3 are fixed point rotary；Now No.1 supporting leg center and bridge pier center line are tangent；
The oil cylinder of No.1 supporting leg 2 is adjusted after traversing process has been carried out, in the step of connecing the Bridge Erector via process two, makes one
Number supporting leg 2 supports in front pier top.
Above example is only to illustrative and not limiting the technical solution of the utility model, although with reference to above-described embodiment pair
The utility model is described in detail, it will be understood by those within the art that：The utility model can still be entered
Row modification or equivalent substitution, without departing from any modification or partial replacement of spirit and scope of the present utility model, it all should
Cover among right of the present utility model.
Claims (3)
1. the main frame structure for Bridge Erector of being constructed by cross for precast segmental beam, including main frame（1）, leg system and overhead traveling crane system
System, leg system are included in main frame（1）Lower section is from front to back along the No.1 supporting leg being longitudinally sequentially arranged（2）, No. two supporting legs
（3）, No. three supporting legs（4）With No. four supporting legs（5）, wherein No.1 supporting leg（2）With No. four supporting legs（5）It is located at main frame respectively（1）'s
Both ends are as Auxiliary support supporting leg, No. two supporting legs（3）With No. three supporting legs（4）For heavily loaded support leg, Overhead travelling crane system is located at main frame
Frame（1）On the vertical shift track at top, it is characterised in that：
Main frame（1）Including box girder（1a）Be fixedly connected on box girder（1a）The truss nose girder at both ends（1b）, and it is main
Framework（1）It is laterally symmetrical structure, centre is connected using connection beam mechanism；Main frame（1）Top surface sets two vertical shift tracks to use
In main overhead traveling crane（6）And assistant crown block（7）Traveling；
The connection beam mechanism includes and No. two supporting legs（3）With No. three supporting legs（4）Two connection beams being correspondingly arranged（11c）, set
In main frame（1）Two connection beams in centre position（21d）And it is located at main frame（1）The connection beam of rear end（31e）, connection beam
（11c）For box-structure, with box girder（1a）Bolt connection, connection beam（21d）For box-structure, with box girder（1a）Pin
Axis connection simultaneously forms transverse rotation cooperation, connection beam（31e）For truss structure, with truss nose girder（1b）Bearing pin connects；
Overhead travelling crane system is included in main frame（1）The main overhead traveling crane run on outside vertical shift track（6）With in main frame（1）Inner side vertical shift
The assistant crown block run on track（7）.
2. the main frame structure of Bridge Erector according to claim 1 of being constructed by cross for precast segmental beam, it is characterised in that：
The main overhead traveling crane（6）Including hoisting system（6a）, transverse-moving mechanism（6b）, overhead traveling crane door frame（6c）, walking system（6d）Hung with overhead traveling crane
Tool（6e）, hoisting system（6a）It is fixed on transverse-moving mechanism（6b）On, transverse-moving mechanism（6b）It is placed on overhead traveling crane door frame（6c）Top is horizontal
Liang Shang, transverse-moving mechanism（6b）With overhead traveling crane door frame（6c）Between relative can slide, overhead traveling crane door frame（6c）Connect walking system（6d）, rise
The system of liter（6a）Pass through steel wire rope and crown block sling（6e）Connection, crown block sling（6e）It is provided with three-dimensional adjusting device.
3. the main frame structure of Bridge Erector according to claim 1 or 2 of being constructed by cross for precast segmental beam, its feature exist
In：The assistant crown block（7）Including hoisting system（7a）, overhead traveling crane door frame（7b）And walking system（7c）, hoisting system（7a）Peace
Mounted in overhead traveling crane door frame（7b）On, overhead traveling crane door frame（7b）Connect walking system（7c）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720586528.0U CN206800211U (en) | 2017-05-24 | 2017-05-24 | Constructed by cross for precast segmental beam the main frame structure of Bridge Erector |
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|---|---|---|---|
| CN201720586528.0U CN206800211U (en) | 2017-05-24 | 2017-05-24 | Constructed by cross for precast segmental beam the main frame structure of Bridge Erector |
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| CN206800211U true CN206800211U (en) | 2017-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607756A (en) * | 2019-10-15 | 2019-12-24 | 合肥正浩机械科技有限公司 | Connecting structure of main beam and supporting legs of bridge girder erection machine |
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2017
- 2017-05-24 CN CN201720586528.0U patent/CN206800211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607756A (en) * | 2019-10-15 | 2019-12-24 | 合肥正浩机械科技有限公司 | Connecting structure of main beam and supporting legs of bridge girder erection machine |
| CN110607756B (en) * | 2019-10-15 | 2020-11-24 | 合肥正浩机械科技有限公司 | Connecting structure of main beam and supporting legs of bridge girder erection machine |
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