CN104532753B - Lifting device suitable for lifting and installing suspension bridge stiffening girders - Google Patents
Lifting device suitable for lifting and installing suspension bridge stiffening girders Download PDFInfo
- Publication number
- CN104532753B CN104532753B CN201410846284.6A CN201410846284A CN104532753B CN 104532753 B CN104532753 B CN 104532753B CN 201410846284 A CN201410846284 A CN 201410846284A CN 104532753 B CN104532753 B CN 104532753B
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- lifting
- lift cylinder
- suspension bridge
- girder
- anchorage
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
Abstract
The invention relates to the field of suspension bridge stiffening girder lifting and installing construction, in particular to a lifting device suitable for lifting and installing large segments of stiffening girders of a suspension bridge. The lifting device comprises a power system, an anchoring system and a control system. A lifting system is arranged on a stiffening girder lifting bridge face plate, and the lifting and installing capacity of the device is improved by improving the performance of a lifting oil cylinder; the stiffening girders of the suspension bridge are synchronously lifted through a computer synchronous control technology, the safety coefficient in the lifting process is increased, meanwhile all main components of the system can be reused, and the cost saving effect is remarkable; compared with a deck erection gantry, a cable lifting device, a rail cable lifting device and the like, the influences, brought by sites, natural conditions and the like, on the system are smaller, practicability is high, and the lifting device is suitable for being further popularized in later large-segment suspension bridge stiffening girder lifting construction.
Description
Technical field
The present invention relates to stiffening girder of suspension bridge lifting installation field, a kind of lifting means being applicable to the lifting installation of suspension bridge big sections stiff girder.
Background technology
Continuous progress along with science and technology, bridge construction has obtained the development advanced by leaps and bounds, since 21st century, bridge construction cause is flourish, cross over inland river, Grand Canyon Large Span Bridges too numerous to enumerate, wherein suspension bridge accounts for the overwhelming majority, and within the quite a long time from now on, continuation is continued this development trend.
It is the problem all the time needing to capture that stiffening girder of suspension bridge is installed, stiffening girder of suspension bridge lifting in the past is provided with deck erection gantry method, cable crane method, rail Suo Fa etc., these methods have respective pluses and minuses, it also is adapted for different construction environments, but the lifting means of these lifting installation methods is complicated, maximum crane capacity has certain limitations.
Summary of the invention
It is an object of the invention to overcome in existing stiffening girder of suspension bridge mounting technique, lifting means is complicated, the problem that maximum crane capacity has certain limitations.
For this, the invention provides a kind of lifting means being applicable to stiffening girder of suspension bridge lifting installation, including dynamical system, anchor system and control system, described dynamical system includes providing the lift cylinder of lifting power for stiff girder, fixing and transmit lift cylinder lifting power to the jack stand of stiff girder, steel strand wires and the pumping plant providing hydraulic coupling to lift cylinder, described dynamical system comprises even number set, is symmetrical arranged on stiff girder；
Described anchor system includes steel strand wires, be arranged on main push-towing rope interim cord clip and the upper anchorage being arranged on the upper and lower two ends of lift cylinder and lower anchorage, described steel strand wires one end is fixing connects interim cord clip, and steel strand wires sequentially pass through anchorage and lower anchorage, upper anchorage and lower anchorage at least one be in locking state.
Described lift cylinder is inverted and is arranged, and the oil cylinder of lift cylinder is fixed on jack stand, and jack stand bottom is connected with stiff girder；Pumping plant is arranged on stiff girder, and is connected with lift cylinder by pipeline.
Described jack stand bottom is provided with slotting ear, and the stiff girder suspension centre that jack stand bottom is inserted on ear and stiff girder connects fixing by bearing pin.
Upper anchorage is arranged on the cylinder upper end portion of lift cylinder, and lower anchorage is arranged on the piston-rod lower end portion of lift cylinder.
Being provided with appearance rope reel on described stiff girder, the free end of steel strand wires is coiled on appearance rope reel.
Described appearance rope reel connects a rope closing motor, and rope closing motor is carried out automatically controlled by the main control computer of control system.
The end of the interim cord clip of fixing connection of described steel strand wires arranges stranded wire anchor head, and stranded wire anchor head realizes the anchoring of steel strand wires in being fixed on interim cord clip.
Described sensor includes the displacement transducer being arranged on lift cylinder the situation for detecting lift cylinder and is separately positioned on upper anchorage, lower anchorage for detecting the pressure transducer of the degree of tightness situation of upper anchorage, lower anchorage.
It is also equipped with permanent cord clip on described main push-towing rope, permanent cord clip is connected to permanent hoist cable.
Described control system includes the sensor of the degree of tightness situation of main control computer and the detection situation of lift cylinder and upper anchorage, lower anchorage, main control computer passed to by described sensor after signal being detected, and by main control computer automatically controlled pumping plant respectively, upper anchorage, the work of lower anchorage.
Beneficial effects of the present invention: lifting system is arranged on lifting stiff girder floorings, is improved the lifting erectility of equipment by the performance increasing lift cylinder；Utilizing computer synchronous control technology to realize Synchronous lifting lifting stiffening girder of suspension bridge, increase the safety coefficient of lifting process, each main member of simultaneity factor all can have enough to meet the need use, and cost-effective effect is notable.And this system the hanging device such as hangs than deck erection gantry, cable crane, rail rope and affected less by the factor such as place, natural conditions, practical, it is worth further genralrlization in the biggest sections stiffening girder of suspension bridge lifting construction.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is present configuration front view；
Fig. 2 is present configuration side view；
Fig. 3 is lift cylinder structural representation of the present invention.
Description of reference numerals: 1, jack stand；2, lift cylinder；3, rope reel is held；4, pumping plant；5, main control computer；6, stranded wire anchor head；7, main push-towing rope；8, steel strand wires；9, stiff girder；10, interim cord clip；11, permanent cord clip；12, permanent hoist cable；13, upper anchorage；14, lower anchorage；15, stiff girder suspension centre.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of and is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed, as depicted in figs. 1 and 2, including dynamical system, anchor system and control system, dynamical system includes providing the lift cylinder 2 of lifting power for stiff girder 9, fixing and transmit lift cylinder 2 lifting power to the jack stand 1 of stiff girder 9, steel strand wires 8 and the pumping plant 4 providing hydraulic coupling to lift cylinder 2, described dynamical system comprises even number set, is symmetrical arranged on stiff girder 9；
Anchor system includes steel strand wires 8, the interim cord clip 10 being arranged on main push-towing rope 7 and the upper anchorage 13 being arranged on lift cylinder about 2 two ends and lower anchorage 14, described steel strand wires 8 one end is fixing connects interim cord clip 10, and steel strand wires 8 sequentially pass through anchorage 13 and lower anchorage 14, upper anchorage 13 and lower anchorage 14 at least one be in locking state.
This of the present embodiment is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed, different from the lifting means that traditional deck erection gantry method, cable crane method, rail rope method are used, utilize the stretching, extension of a lift cylinder 2 simply including dynamical system and contraction to realize the lifting of stiff girder 9.The interim cord clip 10 on main push-towing rope 7 is fixed in steel strand wires 8 one end, utilizes lift cylinder 2 constantly climbing on steel strand wires 8, drives the stiff girder 9 being attached thereto constantly to climb, thus realizes the lifting of stiff girder 9.The sensor of control system and main control computer 5 realize Synchronous lifting lifting stiffening girder of suspension bridge, increase the safety coefficient of lifting process.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, lift cylinder 2 is inverted and is arranged, and the oil cylinder of lift cylinder 2 is fixed on jack stand 1, and jack stand 1 bottom is connected with stiff girder 9；Pumping plant 4 is arranged on stiff girder 9, and is connected with lift cylinder 2 by pipeline.
Described jack stand 1 bottom is provided with slotting ear, and the stiff girder suspension centre 15 that jack stand 1 bottom is inserted on ear and stiff girder 9 connects fixing by bearing pin.
As it is shown on figure 3, upper anchorage 13 is arranged on the cylinder upper end portion of lift cylinder 2, lower anchorage 14 is arranged on the piston-rod lower end portion of lift cylinder 2.
Control system includes the sensor of the degree of tightness situation of main control computer 5 and the detection situation of lift cylinder 2 and upper anchorage 13, lower anchorage 14, main control computer 5 passed to by described sensor after signal being detected, and worked by the most automatically controlled pumping plant of main control computer 54, upper anchorage 13, lower anchorage 14.
The present embodiment is accomplished by: the lower anchorage 14 in the piston-rod lower end portion being initially positioned at lift cylinder 2 is locked, the upper anchorage 13 in the cylinder upper end portion being arranged on lift cylinder 2 unclamps, now pumping plant 4 provides hydraulic coupling to lift cylinder 2, the oil cylinder of lift cylinder 2 moves upward relative to piston rod, the jack stand 1 being attached thereto is driven to move upward, owing to jack stand 1 is connected with stiff girder 9, so now stiff girder 9 also moves upward；When lift cylinder 2 reaches maximum extension amount when, lower anchorage 14 unclamps, and upper anchorage 13 is locked, and pumping plant 4 controls lift cylinder 2 and shrinks, and owing to oil cylinder is fixed, so piston rod moves upward until being retracted to initial condition, now completes the lifting process of one bout；The most constantly complete the lifting process of multi-round, until stiff girder 9 is risen to design attitude.
Embodiment 3:
In above-described embodiment 2, the end of the interim cord clip of fixing connection 10 of described steel strand wires 8 arranges stranded wire anchor head 6, and stranded wire anchor head 6 realizes the anchoring of steel strand wires 8 in being fixed on interim cord clip 10.Along with lift cylinder 2 constantly climbs at steel strand wires 8, the part of steel strand wires 8 lower end can be more and more longer, in the present embodiment, is provided with appearance rope reel 3 on described stiff girder 9, and the free end of steel strand wires 8 is coiled on appearance rope reel 3.Described appearance rope reel 3 connects a rope closing motor, and rope closing motor is carried out automatically controlled by the main control computer 5 of control system.
Controlling rope closing motor by main control computer 5 to work, rope closing motor belt motor visibly moved rope reel 3 carries out flake down operation, by steel strand wires 8 all dishes of unnecessary free end to holding in rope reel 3, steel strand wires 8 so can be avoided to affect the operation of system, and entirety seems neat clean.
Embodiment 4:
Control system Synchronous lifting to be realized lifting stiffening girder of suspension bridge in embodiment 1, in the present embodiment, sensor includes the displacement transducer being arranged on lift cylinder 2 for detecting the situation of lift cylinder 2 and is separately positioned on upper anchorage 13, lower anchorage 14 for detecting the pressure transducer of the degree of tightness situation of upper anchorage 13, lower anchorage 14.
The moving displacement of lift cylinder 2 can be sensed by displacement transducer, and pass information to main control computer 5, lift cylinder 2 in maximum extension state and minimum of contraction state time can be sensed in time, thus control upper anchorage 13 and lower anchorage 14 is locked or unclamps；Pressure transducer, for determining upper anchorage 13 and the locking of lower anchorage 14 or releasing orientation, utilizes the size of detection coupling mechanism force, judges to determine locking or the releasing orientation whether upper anchorage 13 and lower anchorage 14 are in correspondence, it is ensured that the correct operation of integral device.
Embodiment 5:
In above-described embodiment 1 to embodiment 4, after stiff girder 9 is promoted to design attitude, stiff girder 9 is fixed and removes equipment, for simplicity, the present embodiment is provided with on main push-towing rope 7 permanent cord clip 11, it is connected to permanent hoist cable 12 on permanent cord clip 11, after stiff girder 9 is promoted to design attitude, permanent hoist cable 12 is connected in stiff girder 9, then remove other equipment in interim cord clip 10 and the present invention, now have only to permanent cord clip 11 and stiff girder 9 is fixed on below main push-towing rope 7 by permanent hoist cable 12.
In sum, this lifting system of the present invention is arranged on lifting stiff girder floorings, is improved the lifting erectility of equipment by the performance increasing lift cylinder；Utilizing computer synchronous control technology to realize Synchronous lifting lifting stiffening girder of suspension bridge, increase the safety coefficient of lifting process, each main member of simultaneity factor all can have enough to meet the need use, and cost-effective effect is notable.And this system the hanging device such as hangs than deck erection gantry, cable crane, rail rope and affected less by the factor such as place, natural conditions, practical, it is worth further genralrlization in the biggest sections stiffening girder of suspension bridge lifting construction.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention belongs to protection scope of the present invention.Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Claims (7)
1. one kind is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed, including dynamical system, anchor system and control system, it is characterized in that: described dynamical system includes providing the lift cylinder (2) of lifting power for stiff girder (9), fixing and transmit lift cylinder (2) lifting power to the jack stand (1) of stiff girder (9), steel strand wires (8) and the pumping plant (4) providing hydraulic coupling to lift cylinder (2), described dynamical system comprises even number set, is symmetrical arranged on stiff girder (9)；
Described anchor system includes the interim cord clip (10) being arranged on main push-towing rope (7) and the upper anchorage (13) being arranged on lift cylinder (2) two ends up and down and lower anchorage (14), described steel strand wires (8) one end is fixing connects interim cord clip (10), and steel strand wires (8) sequentially pass through anchorage (13) and lower anchorage (14), upper anchorage (13) and lower anchorage (14) at least one be in locking state；
Described lift cylinder (2) is inverted and is arranged, and the oil cylinder of lift cylinder (2) is fixed on jack stand (1), and jack stand (1) bottom is connected with stiff girder (9)；Pumping plant (4) is arranged on stiff girder (9), and is connected with lift cylinder (2) by pipeline；Described upper anchorage (13) is arranged on the cylinder upper end portion of lift cylinder (2), and lower anchorage (14) is arranged on the piston-rod lower end portion of lift cylinder (2).
It is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed the most as claimed in claim 1, it is characterized in that: described jack stand (1) bottom is provided with slotting ear, the stiff girder suspension centre (15) that jack stand (1) bottom is inserted on ear and stiff girder (9) connects fixing by bearing pin.
It is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed the most as claimed in claim 1, it is characterised in that: being provided with appearance rope reel (3) on described stiff girder (9), the free end of steel strand wires (8) is coiled in appearance rope reel (3).
It is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed the most as claimed in claim 3, it is characterised in that: described appearance rope reel (3) connects a rope closing motor, and rope closing motor is carried out automatically controlled by the main control computer (5) of control system.
5. the lifting means being applicable to stiffening girder of suspension bridge lifting installation as described in claim 1 or 3 or 4, it is characterized in that: the end of the interim cord clip of the fixing connection (10) of described steel strand wires (8) arranges stranded wire anchor head (6), stranded wire anchor head (6) realizes the anchoring of steel strand wires (8) in being fixed on interim cord clip (10).
It is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed the most as claimed in claim 1, it is characterised in that: it is also equipped with permanent cord clip (11) on described main push-towing rope (7), permanent cord clip (11) is connected to permanent hoist cable (12).
It is applicable to the lifting means that stiffening girder of suspension bridge lifting is installed the most as claimed in claim 1, it is characterized in that: described control system includes main control computer (5) and the situation of detection lift cylinder (2) and upper anchorage (13), the sensor of degree of tightness situation of lower anchorage (14), main control computer (5) passed to by described sensor after signal being detected, and by main control computer (5) automatically controlled pumping plant (4) respectively, upper anchorage (13), lower anchorage (14) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846284.6A CN104532753B (en) | 2014-12-31 | 2014-12-31 | Lifting device suitable for lifting and installing suspension bridge stiffening girders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846284.6A CN104532753B (en) | 2014-12-31 | 2014-12-31 | Lifting device suitable for lifting and installing suspension bridge stiffening girders |
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| Publication Number | Publication Date |
|---|---|
| CN104532753A CN104532753A (en) | 2015-04-22 |
| CN104532753B true CN104532753B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846284.6A Active CN104532753B (en) | 2014-12-31 | 2014-12-31 | Lifting device suitable for lifting and installing suspension bridge stiffening girders |
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| CN (1) | CN104532753B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476195B (en) * | 2017-08-16 | 2023-04-07 | 湖南路桥建设集团有限责任公司 | Girder transporting pulley system for transporting stiffening girder by suspension bridge |
| CN109680616B (en) * | 2019-01-09 | 2021-04-30 | 中交第二航务工程局有限公司 | Construction method for hoisting main beam by using cable crane and reverse lifting equipment |
| CN111535185A (en) * | 2020-04-30 | 2020-08-14 | 中交二公局第二工程有限公司 | Method for installing plate girder combination beam of suspension bridge |
| CN114214941B (en) * | 2021-09-08 | 2024-03-26 | 中交武汉港湾工程设计研究院有限公司 | Inverted lifting equipment for installing steel girder of separated suspension bridge and construction method thereof |
| CN114108479B (en) * | 2021-12-01 | 2023-04-25 | 中交第二航务工程局有限公司 | Construction method for multi-machine collaborative hoisting of stiffening beam of large-tonnage suspension bridge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3952843B2 (en) * | 2002-05-15 | 2007-08-01 | 鹿島建設株式会社 | Construction method of tower structure |
| CN2816117Y (en) * | 2005-03-16 | 2006-09-13 | 同济大学 | Hanging balancing apparatus for large bridge face-board |
| CN200967927Y (en) * | 2006-10-27 | 2007-10-31 | 湖南省交通厅 | Rope-suspension bridge multi-span ropeway girder conveyer |
| CN101225638A (en) * | 2007-12-20 | 2008-07-23 | 中铁大桥局股份有限公司 | Method for mounting ground anchor type suspension bridge prestressed concrete stiffening box girder |
| CN204455833U (en) * | 2014-12-31 | 2015-07-08 | 中交二公局第二工程有限公司 | A kind of lifting means being applicable to stiffening girder of suspension bridge lifting and installing |
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Effective date of registration: 20210915 Address after: 710119 No.29, No.1 Enterprise Park, West Avenue, high tech Zone, Xi'an City, Shaanxi Province Patentee after: CCCC-SHEC SECOND ENGINEERING Co.,Ltd. Patentee after: SHANGHAI TXMEC TECHNOLOGY Co.,Ltd. Patentee after: CCCC SECOND HIGHWAY ENGINEERING Co.,Ltd. Patentee after: CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 710119 No.29, No.1 Enterprise Park, West Avenue, high tech Zone, Xi'an City, Shaanxi Province Patentee before: CCCC-SHEC SECOND ENGINEERING Co.,Ltd. Patentee before: SHANGHAI TXMEC TECHNOLOGY Co.,Ltd. |