CN207293976U - A kind of cantilever crane set up for bridge subsection transport - Google Patents
A kind of cantilever crane set up for bridge subsection transport Download PDFInfo
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- CN207293976U CN207293976U CN201721276093.6U CN201721276093U CN207293976U CN 207293976 U CN207293976 U CN 207293976U CN 201721276093 U CN201721276093 U CN 201721276093U CN 207293976 U CN207293976 U CN 207293976U
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- bridge
- main couple
- supporting leg
- cantilever crane
- transport
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Abstract
The utility model discloses a kind of cantilever crane set up for bridge subsection transport, it includes two main couples being arranged in parallel（1）, main couple（1）Between be equipped with middle cross beam（2）, main couple（1）Top is equipped with lifting trolley（3）, main couple（1）The middle supporting leg being connected with bridge floor is equipped with below middle part（4）, main couple（1）The rear support leg being connected with bridge floor is equipped with below rearward end（5）, the cantilever crane further includes and main couple（1）The rear slip supporting leg being slidably connected（6）.The utility model bridge prefabrication segment splice during have it is simple in structure, be easy to set up, segment transport it is more convenient the advantages of, reduce construction quantities and construction difficulty, improve construction safety coefficient, the construction period is shorter, splicing precision it is higher.
Description
Technical field
A kind of equipment for bridge construction is the utility model is related to, particularly a kind of cantilever crane set up for bridge subsection transport
Machine.
Background technology
During bridge erection is constructed, the means spliced typically by prefabricated subsection are set up；Build first
Bridge tower, is then fixedly connected with completion erection by prefabricated bridge subsection lifting and with bridge tower.Apply at present carrying out erection to bridge
In man-hour, since prefabricated subsection build is larger, bridge tower is higher, and during splicing is set up, quantities is larger, and difficulty of construction is higher,
Construction risk is higher, and the duration is longer.In bridge prefabrication segment, splicing is more during setting up at present is applied using erection crane
Work, but since erection crane need to set pre-splicing field under tower in the construction process, it is not only larger by the influence of topography, and high-altitude is risen
Crane operation lifting altitude is higher, and when working at height has a great influence pre-splicing field under tower, and working security is relatively low, while uses bridge floor
Each tie point is both needed to set construction platform when loop wheel machine carries out lifting operation, sets operation relatively complicated, causes the construction period longer.
Therefore, during in bridge prefabrication segment, splicing is set up at present there are loop wheel machine set difficulty is higher, segment transport is relatively complicated,
The shortcomings that construction work amount is larger, difficulty of construction is higher, construction risk is higher and the duration is longer.
Utility model content
The purpose of this utility model is that, there is provided a kind of cantilever crane set up for bridge subsection transport.This practicality is new
Type bridge prefabrication segment splice during have it is simple in structure, be easy to set up, segment transport it is more convenient the advantages of, reduce
The quantities of construction and the difficulty of construction, improve construction safety coefficient, and the construction period is shorter, and splicing precision is higher.
The technical solution of the utility model：A kind of cantilever crane set up for bridge subsection transport, including two parallel
The main couple of setting, middle cross beam is equipped between main couple, lifting trolley is equipped with above main couple, lifting trolley can be on main couple
Vertically move, lower section is equipped with the middle supporting leg being connected with girder in the middle part of main couple, is equipped with below main couple rearward end and is connected with girder
Rear support leg, the cantilever crane further includes the rear slip supporting leg being slidably connected with main couple.
In a kind of foregoing cantilever crane set up for bridge subsection transport, the lifting trolley includes upending frame, rises
Hanging trolley can walk on upending frame, realize the direction across bridge movement of lifting trolley；The lifting trolley further includes rotary hanger, revolves
Rotary lifting is connected by steel wire rope cabling with lifting trolley, and rotary hanger can carry out full circle swinging, and frame is equipped with below rotary hanger
Suspender.
In a kind of foregoing cantilever crane set up for bridge subsection transport, wherein the middle cross beam is packaged type crossbeam,
Support leg is installed below middle cross beam both ends.
In a kind of foregoing cantilever crane set up for bridge subsection transport, the middle supporting leg and rear support leg are liftable
Supporting leg.
Compared with prior art, by supporting leg in setting and rear support leg, two are set to put down above middle supporting leg and rear support leg
Capable main couple, and lifting trolley is set above main couple, it is more convenient to build, and need to only be set in construction in steel girder connector
Steel girder and the prefabricated bridge installation of bridge subsection can be carried out by putting construction platform, reduce quantities and the construction of construction
Difficulty, and pre-splicing field can be arranged on bridge floor, transport and splice easy to bridge prefabrication segment, while reduce working at height
Point, reduces construction personnel, improves working security, reduces the construction period.
The using effect of the artificial verification cantilever crane of application, by practice of construction by cantilever crane with present frequently with bridge
Face loop wheel machine contrasts, and concrete outcome is as shown in table 1：
In conclusion the utility model bridge prefabrication segment splice during have it is simple in structure, be easy to set up, save
The advantages of section transport is more convenient, reduces the quantities of construction and the difficulty of construction, improves construction safety coefficient, work of constructing
Phase is shorter, and splicing precision is higher.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the side structure schematic diagram of the utility model；
Fig. 3 is the utility model hoisting process schematic diagram.
Mark in attached drawing for：1- main couples, 2- middle cross beams, 3- lifting trolleies, supporting leg in 4-, 5- rear support legs are sliding after 6-
Dynamic supporting leg, 7- upending frames, 8- lifting jacks, 9- rotary hangers, 10- frame lifting appliances, 11- support legs.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment.A kind of cantilever crane set up for bridge subsection transport, as shown in Figure 1 to Figure 3, including two parallel
The main couple 1 of setting, middle cross beam 2 is equipped between main couple 1, and the top of main couple 1 is equipped with lifting trolley 3, and lifting trolley 3 can be in master
Vertically moved on truss 1, the middle part of main couple 1 lower section is equipped with the middle supporting leg 4 being connected with bridge floor, is equipped with below 1 rearward end of main couple
The rear support leg 5 being connected with bridge floor, the cantilever crane further include the rear slip supporting leg 6 being slidably connected with main couple 1.
The lifting trolley 3 includes upending frame 7, and lifting trolley 3 can walk on upending frame 7, realizes that lifting trolley 3 is horizontal
Bridge is to movement；The lifting trolley 3 further includes rotary hanger 9, and rotary hanger 9 is connected by steel wire rope cabling with lifting trolley 3,
Rotary hanger 9 can carry out full circle swinging, and the lower section of rotary hanger 9 is equipped with frame lifting appliance 10；Wherein the middle cross beam 2 is packaged type crossbeam,
2 both ends supported underneath leg 11 of middle cross beam；The middle supporting leg 4 and rear support leg 5 are liftable supporting leg.
Operation principle：Cantilever crane walking process, the gooseneck of reach middle cross beam 2 to the anchor tie plate position for having completed beam section
On, the rear supporting leg 6 that slides is moved near middle supporting leg 4, and trolley is moved to the point midway between middle cross beam 2 and middle supporting leg 4, puts down
Frame lifting appliance 10 to bridge floor, middle supporting leg 4 and rear support leg 5 is shunk, and reduces the height of main couple 1, makes the supporting leg of middle cross beam 2 and rear sliding
Supporting leg is supported on bridge floor, releases 5 anchor measure of rear support leg, and middle supporting leg 4 and rear support leg 5 continue to shrink, and leave bridge floor, middle cross beam
2 and the rear supporting leg 6 that slides drive main couple 1 to move forward, lifting trolley 3 is synchronously moved rearwards, when after slide supporting leg 6 after and prop up
During leg 5, stop movement.Supporting leg 4 and rear support leg 5 in jacking, slide supporting leg and depart from bridge floor after making, rear to slide the adjustment of supporting leg forward end
A distance, then middle supporting leg 4 and rear support leg 5 shrink away from bridge floor, the rear supporting leg that slides is supported on bridge floor again, middle cross beam 2
Main couple 1 is driven to move forward again with rear slip supporting leg 6, lifting trolley 3 is synchronously moved rearwards, and supporting leg 4 is located at anchor drawing in the middle
When at plate above gooseneck, stop main couple 1 and move forward.Supporting leg 4 and rear support leg 5 in jacking, raise main couple 1 to operation height,
2 supporting leg of middle cross beam and rear sliding supporting leg is set to depart from bridge floor, middle cross beam 2 is moved near rear support leg 5, and anchoring rear support leg 5 is in steel master
On beam crossbeam, 3 installation frame suspender 10 of trolley is lifted by crane, prepares lifting operation.
During the splicing of bridge prefabrication segment is set up, cantilever crane is built in girder front end, anchors rear support leg 5, lifting trolley 3,
Middle cross beam 2, rear sliding supporting leg are moved to 1 rearward end of main couple, and then installing frame is set a roof beam in place suspender on lifting trolley 3, is prepared
Lifting operation；During construction, by travelling bogie, bridge prefabrication segment is transported to cantilever crane rear, in bridge out of pre-splicing field first
Installation frame suspender 10 on prefabricated subsection, and be connected with rotary hanger 9 on lifting trolley 3, bridge prefabrication segment is carried out assembly
After, you can carry out next bridge prefabrication section assembling.
Lift by crane trolley 3 and lift by crane bridge prefabrication segment, walk to girder front end, and adjust bridge prefabrication segment in due course to bridge
Midline position, middle cross beam 2 follows lifting trolley 3 to move ahead, and is fixed in middle 4 position of supporting leg, and lifting trolley 3 proceeds to installation
The anchor tie plate crossbeam position+10cm places parking of segment.
Rotary hanger 9 is operated, it is pre- to installation site, the lifting decentralization bridge of trolley 3 by 90 degree of rule rotation steel girder segment
Segment processed is alignd with having installed segment, and lifting trolley 3 adjusts bridge prefabrication segment docking location, installs connecting plate and high intensity spiral shell
Bolt, installs suspension cable and prefabricated bridge, floorings and is installed in place in order by cantilever crane, suspension cable successively just and
Two, the wet seam of floorings of constructing, after concrete strength reaches 100%, stretch-draw prestressing force and suspension cable, cantilever crane are run to
On the beam section middle cross beam 2, repeat the above steps and carry out next bridge prefabrication segment installation.
Claims (4)
- A kind of 1. cantilever crane set up for bridge subsection transport, it is characterised in that：Including two main couples being arranged in parallel （1）, main couple（1）Between be equipped with middle cross beam（2）, main couple（1）Top is equipped with lifting trolley（3）, main couple（1）Below middle part Equipped with the middle supporting leg being connected with girder（4）, main couple（1）The rear support leg being connected with girder is equipped with below rearward end（5）, it is described outstanding Arm loop wheel machine further includes and main couple（1）The rear slip supporting leg being slidably connected（6）.
- A kind of 2. cantilever crane set up for bridge subsection transport according to claim 1, it is characterised in that：Described Hang trolley（3）Including upending frame（7）；The lifting trolley（3）Further include rotary hanger（9）, rotary hanger（9）Pass through steel wire rope Cabling and lifting trolley（3）Connection, rotary hanger（9）Lower section is equipped with frame lifting appliance（10）.
- A kind of 3. cantilever crane set up for bridge subsection transport according to claim 1, it is characterised in that：In described Crossbeam（2）For packaged type crossbeam, middle cross beam（2）Support leg is installed below both ends（11）.
- A kind of 4. cantilever crane set up for bridge subsection transport according to claim 1, it is characterised in that：In described Supporting leg（4）And rear support leg（5）For liftable supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276093.6U CN207293976U (en) | 2017-09-30 | 2017-09-30 | A kind of cantilever crane set up for bridge subsection transport |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276093.6U CN207293976U (en) | 2017-09-30 | 2017-09-30 | A kind of cantilever crane set up for bridge subsection transport |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207293976U true CN207293976U (en) | 2018-05-01 |
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ID=62440464
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276093.6U Active CN207293976U (en) | 2017-09-30 | 2017-09-30 | A kind of cantilever crane set up for bridge subsection transport |
Country Status (1)
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| CN (1) | CN207293976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697812A (en) * | 2017-09-30 | 2018-02-16 | 贵州桥梁建设集团有限责任公司 | A kind of cantilever crane set up for bridge subsection transport |
| CN115012321A (en) * | 2022-07-11 | 2022-09-06 | 腾达建设集团股份有限公司 | Multi-section cantilever asymmetric splicing system and method for prefabricated box girder |
-
2017
- 2017-09-30 CN CN201721276093.6U patent/CN207293976U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697812A (en) * | 2017-09-30 | 2018-02-16 | 贵州桥梁建设集团有限责任公司 | A kind of cantilever crane set up for bridge subsection transport |
| CN115012321A (en) * | 2022-07-11 | 2022-09-06 | 腾达建设集团股份有限公司 | Multi-section cantilever asymmetric splicing system and method for prefabricated box girder |
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