CN104532753A - 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
- CN104532753A CN104532753A CN201410846284.6A CN201410846284A CN104532753A CN 104532753 A CN104532753 A CN 104532753A CN 201410846284 A CN201410846284 A CN 201410846284A CN 104532753 A CN104532753 A CN 104532753A
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- Prior art keywords
- lifting
- ground tackle
- lift cylinder
- suspension bridge
- girder
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
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, particularly a kind of lifting means being applicable to the large sections stiff girder lifting of suspension bridge and installing.
Background technology
Along with the continuous progress of science and technology, bridge construction obtains the development of advancing by leaps and bounds, since particularly entering 21st century, bridge construction cause is flourish, the Large Span Bridges of leap inland river, Grand Canyon is too numerous to enumerate, wherein suspension bridge accounts for the overwhelming majority, and by this development trend of continuation continuity within the quite a long time from now on.
It is the problem all the time needing to capture that stiffening girder of suspension bridge is installed, stiffening girder of suspension bridge lifting is in the past provided with deck erection gantry method, cable crane method, rail Suo Fa etc., these methods have respective pluses and minuses, also different construction environments has been applicable to, but the lifting means of these lifting installation methods is complicated, and maximum crane capacity has a definite limitation.
Summary of the invention
The object of the invention is to overcome in existing stiffening girder of suspension bridge mounting technique, lifting means is complicated, and maximum crane capacity has the problem of a definite limitation.
For this reason, the invention provides a kind of lifting means being applicable to stiffening girder of suspension bridge lifting and installing, comprise dynamical system, anchor system and control system, described dynamical system comprises for stiff girder provides the lift cylinder of lifting power, fixes and transmits lift cylinder lifting power to the jack stand of stiff girder, steel strand and the pumping plant providing hydraulic coupling to lift cylinder, described dynamical system comprises even number cover, and stiff girder is symmetrical arranged;
Described anchor system comprises steel strand, is arranged on the interim cord clip on main push-towing rope and is arranged on the upper ground tackle at the upper and lower two ends of lift cylinder and lower ground tackle, described steel strand one end is fixedly connected with interim cord clip, and steel strand are successively through upper ground tackle and lower ground tackle, and upper ground tackle and lower ground tackle have at least one to 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 is fixed by pinned connection.
Upper ground tackle is arranged on the cylinder upper end portion of lift cylinder, and lower ground tackle is arranged on the piston-rod lower end portion of lift cylinder.
Described stiff girder is provided with and holds rope reel, the free end of steel strand is coiled in and holds on rope reel.
Described appearance rope reel connects a rope closing motor, and rope closing motor is undertaken automatically controlled by the main control computer of control system.
The end being fixedly connected with interim cord clip of described steel strand arranges stranded wire anchor head, and stranded wire anchor head is fixed on the anchoring realizing steel strand in interim cord clip.
Described sensor comprises and being arranged on lift cylinder for detecting the displacement transducer of the situation of lift cylinder and being separately positioned on upper ground tackle, lower ground tackle for detecting the pressure sensor of degree of tightness situation of upper ground tackle, lower ground tackle.
Described main push-towing rope is also provided with permanent cord clip, permanent cord clip is connected to permanent hoist cable.
Described control system comprises main control computer and detects the sensor of degree of tightness situation of the situation of lift cylinder and upper ground tackle, lower ground tackle, described sensor passes to main control computer after signal being detected, and by main control computer automatically controlled pumping plant, upper ground tackle, lower ground tackle work respectively.
Beneficial effect of the present invention: Hoisting System is arranged on lifting stiff girder bridge deck, is improved the lifting erectility of equipment by the performance increasing lift cylinder; Utilize computer synchronous control technology to realize Synchronous lifting lifting stiffening girder of suspension bridge, increase the safety factor of lifting process, each main member of simultaneity factor all can have enough to meet the need use, cost-saving Be very effective.And this system the hanging device such as to be hung than deck erection gantry, cable crane, rail rope and affected less by the factor such as place, natural conditions, practical, be worth further genralrlization in large sections stiffening girder of suspension bridge lifting construction from now on.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention.
Fig. 2 is structure side view of the present invention.
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; 9, stiff girder; 10, interim cord clip; 11, permanent cord clip; 12, permanent hoist cable; 13, upper ground tackle; 14, lower ground tackle; 15, stiff girder suspension centre.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of lifting means being applicable to stiffening girder of suspension bridge lifting and installing, as depicted in figs. 1 and 2, comprise dynamical system, anchor system and control system, dynamical system comprises for stiff girder 9 provides the lift cylinder 2 of lifting power, fixes and transmits lift cylinder 2 lifting power to the jack stand 1 of stiff girder 9, steel strand 8 and the pumping plant 4 providing hydraulic coupling to lift cylinder 2, described dynamical system comprises even number cover, and stiff girder 9 is symmetrical arranged;
Anchor system comprises steel strand 8, is arranged on the interim cord clip 10 on main push-towing rope 7 and is arranged on the upper ground tackle 13 at lift cylinder about 2 two ends and lower ground tackle 14, described steel strand 8 one end is fixedly connected with interim cord clip 10, and steel strand 8 are successively through upper ground tackle 13 and lower ground tackle 14, and upper ground tackle 13 and lower ground tackle 14 have at least one to be in locking state.
This lifting means being applicable to stiffening girder of suspension bridge lifting and installing of the present embodiment, different from the lifting means that traditional deck erection gantry method, cable crane method, rail rope method use, the stretching, extension utilizing simply to comprise the lift cylinder 2 of dynamical system and contraction realize the lifting of stiff girder 9.The interim cord clip 10 on main push-towing rope 7 is fixed in steel strand 8 one end, utilizes lift cylinder 2 constantly climbing on steel strand 8, drives the stiff girder 9 be 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 factor 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 is fixed by pinned connection.
As shown in Figure 3, upper ground tackle 13 is arranged on the cylinder upper end portion of lift cylinder 2, and lower ground tackle 14 is arranged on the piston-rod lower end portion of lift cylinder 2.
Control system comprises main control computer 5 and detects the sensor of degree of tightness situation of the situation of lift cylinder 2 and upper ground tackle 13, lower ground tackle 14, described sensor passes to main control computer 5 after signal being detected, and automatically controlled pumping plant 4, upper ground tackle 13, lower ground tackle 14 work respectively by main control computer 5.
The present embodiment realizes in the following manner: the lower ground tackle 14 being first positioned at the piston-rod lower end portion of lift cylinder 2 is locked, the upper ground tackle 13 being arranged on the cylinder upper end portion of 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 15 be attached thereto is driven to move upward, because jack stand 15 is connected with stiff girder 9, so now stiff girder 9 also moves upward; When lift cylinder 2 reaches maximum extension amount time, lower ground tackle 14 unclamps, and upper ground tackle 13 is locked, and pumping plant 4 controls lift cylinder 2 and shrinks, and because oil cylinder is fixed, so piston rod moves upward until be retracted to reset condition, now completes the lifting process of one bout; The lifting process of multi-round is constantly completed, until stiff girder 9 is risen to design attitude according to said process.
Embodiment 3:
In above-described embodiment 2, the end being fixedly connected with interim cord clip 10 of described steel strand 8 arranges stranded wire anchor head 6, and stranded wire anchor head 6 is fixed on the anchoring realizing steel strand 8 in interim cord clip 10.Along with lift cylinder 2 constantly climbs at steel strand 8, the part of steel strand 8 lower end can be more and more longer, in the present embodiment, described stiff girder 9 is provided with and holds rope reel 3, and the free end of steel strand 8 is coiled in and holds on rope reel 3.Described appearance rope reel 3 connects a rope closing motor, and rope closing motor is undertaken automatically controlled by the main control computer 5 of control system.
Rope closing machine operation is controlled by main control computer 5, the visibly moved rope reel 3 of rope closing motor belt motor carries out flake down operation, the steel strand 8 of unnecessary free end all being coiled to holding in rope reel 3, the operation of steel strand 8 influential system can be avoided like this, and entirety seems neat clean.
Embodiment 4:
In embodiment 1, control system will realize Synchronous lifting lifting stiffening girder of suspension bridge, in the present embodiment, sensor comprises and being arranged on lift cylinder 2 for detecting the displacement transducer of the situation of lift cylinder 2 and being separately positioned on upper ground tackle 13, lower ground tackle 14 for detecting the pressure sensor of degree of tightness situation of upper ground tackle 13, lower ground tackle 14.
Displacement transducer can be responded to the moving displacement of lift cylinder 2, and information is passed 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 ground tackle 13 and lower ground tackle 14 carries out locking or unclamping; Pressure sensor, for determining locking or the releasing orientation of upper ground tackle 13 and lower ground tackle 14, utilizes the size detecting coupling mechanism force, judges to determine whether upper ground tackle 13 and lower ground tackle 14 are in corresponding locking or releasing orientation, guarantee the true(-)running 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 to be fixed and remove equipment, in order to for simplicity, in the present embodiment, permanent cord clip 11 is installed on main push-towing rope 7, permanent cord clip 11 is connected to permanent hoist cable 12, 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 only need permanent cord clip 11 and permanent hoist cable 12 to be fixed on below main push-towing rope 7 by stiff girder 9.
In sum, this Hoisting System of the present invention is arranged on lifting stiff girder bridge deck, is improved the lifting erectility of equipment by the performance increasing lift cylinder; Utilize computer synchronous control technology to realize Synchronous lifting lifting stiffening girder of suspension bridge, increase the safety factor of lifting process, each main member of simultaneity factor all can have enough to meet the need use, cost-saving Be very effective.And this system the hanging device such as to be hung than deck erection gantry, cable crane, rail rope and affected less by the factor such as place, natural conditions, practical, be worth further genralrlization in large sections stiffening girder of suspension bridge lifting construction from now on.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (10)
1. the lifting means being applicable to stiffening girder of suspension bridge lifting and installing, comprise dynamical system, anchor system and control system, it is characterized in that: described dynamical system comprises for stiff girder (9) provides the lift cylinder of lifting power (2), fixes and transmits lift cylinder (2) lifting power to the jack stand of stiff girder (9) (1), steel strand (8) and the pumping plant (4) providing hydraulic coupling to lift cylinder (2), described dynamical system comprises even number cover, and stiff girder (9) is symmetrical arranged;
Described anchor system comprises the interim cord clip (10) that is arranged on main push-towing rope (7) and is arranged on lift cylinder (2) the upper ground tackle (13) at two ends and lower ground tackle (14) up and down, described steel strand (8) one end is fixedly connected with interim cord clip (10), and steel strand (8) are successively through upper ground tackle (13) and lower ground tackle (14), and upper ground tackle (13) and lower ground tackle (14) have at least one to be in locking state.
2. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 1, it is characterized in that: described lift cylinder (2) is inverted and is arranged, 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.
3. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 2, 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) is fixed by pinned connection.
4. the lifting means being applicable to stiffening girder of suspension bridge lifting installation as described in claim 1 or 2 or 3, it is characterized in that: described upper ground tackle (13) is arranged on the cylinder upper end portion of lift cylinder (2), and lower ground tackle (14) is arranged on the piston-rod lower end portion of lift cylinder (2).
5. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 1, it is characterized in that: described stiff girder (9) is provided with and holds rope reel (3), the free end of steel strand (8) is coiled in and holds on rope reel (3).
6. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 6, it is characterized in that: described appearance rope reel (3) connects a rope closing motor, and rope closing motor is undertaken automatically controlled by the main control computer (5) of control system.
7. the lifting means being applicable to stiffening girder of suspension bridge lifting installation as described in claim 1 or 5 or 6, it is characterized in that: the end being fixedly connected with interim cord clip (10) of described steel strand (8) arranges stranded wire anchor head (6), and stranded wire anchor head (6) is fixed on the anchoring realizing steel strand (8) in interim cord clip (10).
8. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 1, it is characterized in that: described sensor comprise be arranged on lift cylinder (2) on for the displacement transducer that detects the situation of lift cylinder (2) be separately positioned on upper ground tackle (13), lower ground tackle (14) for detecting the pressure sensor of degree of tightness situation of upper ground tackle (13), lower ground tackle (14).
9. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 1, it is characterized in that: described main push-towing rope (7) is also provided with permanent cord clip (11), permanent cord clip (11) is connected to permanent hoist cable (12).
10. be applicable to the lifting means that stiffening girder of suspension bridge lifting is installed as claimed in claim 1, it is characterized in that: described control system comprises main control computer (5) and detects the sensor of degree of tightness situation of the situation of lift cylinder (2) and upper ground tackle (13), lower ground tackle (14), main control computer (5) passed to by described sensor after signal being detected, and automatically controlled pumping plant (4), upper ground tackle (13), lower ground tackle (14) work respectively by main control computer (5).
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104532753A true CN104532753A (en) | 2015-04-22 |
| CN104532753B CN104532753B (en) | 2017-01-11 |
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Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN104532753B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476195A (en) * | 2017-08-16 | 2017-12-15 | 湖南路桥建设集团有限责任公司 | A kind of suspension bridge transports the fortune beam tackle system of stiff girder |
| CN109680616A (en) * | 2019-01-09 | 2019-04-26 | 中交第二航务工程局有限公司 | A liter construction method for equipment hoisting girder is held using deck unit erection gantry collaboration |
| 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 |
| CN114108479A (en) * | 2021-12-01 | 2022-03-01 | 中交第二航务工程局有限公司 | Construction method for hoisting stiffening beam of large-tonnage suspension bridge by cooperation of multiple machines |
| CN114214941A (en) * | 2021-09-08 | 2022-03-22 | 中交武汉港湾工程设计研究院有限公司 | Reverse lifting equipment for mounting separated suspension bridge steel beam and construction method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476195A (en) * | 2017-08-16 | 2017-12-15 | 湖南路桥建设集团有限责任公司 | A kind of suspension bridge transports the fortune beam tackle system of stiff girder |
| 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 |
| CN109680616A (en) * | 2019-01-09 | 2019-04-26 | 中交第二航务工程局有限公司 | A liter construction method for equipment hoisting girder is held using deck unit erection gantry collaboration |
| 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 |
| CN114214941A (en) * | 2021-09-08 | 2022-03-22 | 中交武汉港湾工程设计研究院有限公司 | Reverse lifting equipment for mounting separated suspension bridge steel beam and construction method thereof |
| 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 |
| CN114108479A (en) * | 2021-12-01 | 2022-03-01 | 中交第二航务工程局有限公司 | Construction method for hoisting stiffening beam of large-tonnage suspension bridge by cooperation of multiple machines |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104532753B (en) | 2017-01-11 |
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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. |