CN108557645A - A kind of steel box-girder lifting limit damper - Google Patents
A kind of steel box-girder lifting limit damper Download PDFInfo
- Publication number
- CN108557645A CN108557645A CN201810176455.7A CN201810176455A CN108557645A CN 108557645 A CN108557645 A CN 108557645A CN 201810176455 A CN201810176455 A CN 201810176455A CN 108557645 A CN108557645 A CN 108557645A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- steel box
- limit damper
- vertical
- girder according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of steel box-girder lifting limit damper, including vertical buffer gear and lateral cushioning mechanism, multigroup vertical buffer gear is arranged on concrete bridge deck, each group includes two vertical buffer gears, same group of vertical buffer gear side is set there are one lateral cushioning mechanism, and lateral cushioning mechanism is supported and fixed on by holder on concrete bridge deck.Using the above structure, it can solve to surge in the bridge construction engineering of marine site, the problem of box beam existing dropping place difficulty when lifting can greatly promote construction whole efficiency without excessive consideration Sea Conditions.
Description
Technical field
The present invention relates to field of bridge construction, especially a kind of steel box-girder lifts limit damper.
Background technology
In marine site bridge construction engineering of surging, steel box girder segment is lifted to the reinforcing bar poured using middle-size and small-size crane ship
When concrete bridge deck, since the motor imagination of crane ship in wave can encourage lifting ship's tackle weight system in the horizontal plane and erect
To forced vibration, cause lifting operation that cannot be smoothed out, steel box-girder to be installed etc. can be even damaged when dropping place and is permanently tied
Structure causes unnecessary economic loss.
Spring structure, such as published Chinese patent " lifting spring is usually used in existing lifting buffering equipment
Buffer "（Application number 201410053181.4）, it discloses a kind of suspension hooks of built-in spring structure, for solving lifting operation
In the process, the collsion damage problem during especially hanging down.
A kind of for another example existing patent " mast-up with buffering effect "（Application number 201610900603.6）, disclose
A kind of lifting buffering stand, and by spring structure to lifting during weight is hung under into row buffering.
In summary from the point of view of two existing patents, most principle is in existing patent：Using spring structure, spring is in weight
During object declines, weight is applied and reaches buffering mesh with the elastic force of weight gravity reversal to reduce weight decrease speed
, but in the case of only only accounting for hanging device stabilization in existing patent, for the bridge construction in marine site of surging, profit
When being lifted with crane ship, crane ship itself is in a unstable state, how under lifting appliance unstable state, into
This tens tons of row box beam even up to a hundred tons of weights it is steady under the problem of hanging, being urgent need to resolve.
Invention content
Technical problem to be solved by the invention is to provide a kind of steel box-girders to lift limit damper, can solve to surge
In the bridge construction engineering of marine site, the problem of box beam existing dropping place difficulty when lifting considers Sea Conditions, Neng Gou great without excessive
Big lifting construction whole efficiency.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of steel box-girder lifting limiting buffer dress
It sets, multigroup vertical buffer gear is arranged on bridge floor, and each group includes two vertical buffer gears, same group of vertical buffer
Structure side is set there are one lateral cushioning mechanism, and lateral cushioning mechanism is supported and fixed on by holder on bridge floor.
In preferred scheme, the vertical buffer gear includes vertical oil cylinder, and the push rod of vertical oil cylinder is set straight up
It sets, the upper end of push rod is fixed with sphere, and the upper end of push rod is connected with movable block by sphere, and the top surface of movable block is equipped with
Rubber mat plate.
In preferred scheme, the vertical oil cylinder is arranged in pilot sleeve, and pilot sleeve is the tubular of one end open
Structure is also arranged with quill identical with pilot sleeve structure, pilot sleeve and quill open end on pilot sleeve
It is oppositely arranged, the upper end of the vertical oil cylinder is threaded through on the unclosed end of quill.
In preferred scheme, the lateral cushioning mechanism includes pedestal, and base top is equipped with postive stop baffle, postive stop baffle
Side is equipped with support plate.
In preferred scheme, the pedestal uses section for the structure of " u "-shaped, and cross is equipped in the " u "-shaped groove of pedestal
To oil cylinder, push rod one end of the lateral oil cylinder is fixedly connected by connector with the lower end of postive stop baffle, the limit
Baffle upper end and the upper end of support plate are hinged, and the lower end of the support plate is hingedly arranged in base top surface.
In preferred scheme, telescopic rod is equipped between the postive stop baffle and support plate.
It is equal in the one side of madial wall and postive stop baffle far from support plate of the " u "-shaped groove in preferred scheme
Equipped with MGE slide plates.
In preferred scheme, the " u "-shaped groove floor is equipped with guiding mechanism, and guiding mechanism is used for lateral oil cylinder
Push rod is oriented to.
In preferred scheme, it is equipped with limited block positioned at the position of groove both sides on the base top surface, limited block is logical
It crosses bolt to be fixed on base top surface, and limited block wherein side extends to above groove.
In preferred scheme, the vertical oil cylinder is connect with hydraulic power unit with lateral oil cylinder, oil cylinder and hydraulic power unit
Between connecting pipe be equipped with throttle valve, be additionally provided with branch pipe in connecting pipe, branch pipe one end is connect with accumulator.
A kind of steel box-girder provided by the present invention lifts limit damper, by using above structure, has with following
Beneficial effect：
（1）It efficiently solves in surging marine site bridge construction engineering, the lifting problem of box beam, excessive consideration wave item can be not necessarily to
Part makes box beam lifting operation not limited by Sea Conditions, greatly improves construction efficiency, ensure that the normal of construction speed；
（2）Realize and hang stabilization under the weight under lifting appliance unstable state, compared with the existing technology for, be more suitable for
It in all kinds of construction work operations, can ensure being normally carried out for lower crane operation, ensure construction efficiency.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is section structure diagram of the present invention in hoisting process.
Fig. 2 is the side structure schematic view of the present invention.
Fig. 3 is the vertical buffer gear structural schematic diagram of the present invention.
Fig. 4-5 is the lateral cushioning mechanism structure schematic diagram of the present invention.
Fig. 6 is the cylinder buffer systematic schematic diagram of the present invention.
In figure：Steel box-girder 1, vertical buffer gear 2, lateral cushioning mechanism 3, holder 4, throttle valve 5, accumulator 6, hydraulic pump
Stand 7, pilot sleeve 201, vertical oil cylinder 202, sphere 203, quill 204, movable block 205, rubber mat plate 206, limiting block
Plate 301, MGE slide plates 302, lateral oil cylinder 303, connector 304, guiding mechanism 305, support plate 306, telescopic rod 307, pedestal
308, groove 309, limited block 310.
Specific implementation mode
Embodiment 1
In Fig. 1,2, a kind of steel box-girder lifting limit damper, multigroup vertical buffer gear 2 is arranged on bridge floor, each group
Including two vertical buffer gears 2, same group of 2 side of vertical buffer gear sets that there are one lateral cushioning mechanism 3, lateral cushionings
Mechanism 3 is supported and fixed on by holder 4 on bridge floor.
Embodiment 2：
Such as Fig. 3, on the basis of embodiment 1, the vertical buffer gear 2 includes vertical oil cylinder 202, vertical oil cylinder 202
Push rod is arranged straight up, and the upper end of push rod is fixed with sphere 203, and the upper end of push rod is connected with work by sphere 203
The top surface of motion block 205, movable block 205 is equipped with rubber mat plate 206.
In preferred scheme, the vertical oil cylinder 202 is arranged in pilot sleeve 201, and pilot sleeve 201 is opened for one end
Mouthful tubular structure, be also arranged with quill 204 identical with 201 structure of pilot sleeve, pilot sleeve on pilot sleeve 201
201 are oppositely arranged with 204 open end of quill, and it is unclosed that the upper end of the vertical oil cylinder 202 is threaded through quill 204
On end.
Embodiment 3：
Such as Fig. 4-5, on the basis of embodiment 1, the lateral cushioning mechanism 3 includes pedestal 308, and 308 top of pedestal is equipped with
Postive stop baffle 301,301 side of postive stop baffle are equipped with support plate 306.
In preferred scheme, the pedestal 308 uses section for the structure of " u "-shaped, the " u "-shaped groove 309 of pedestal 308
Lower end interior to be equipped with lateral oil cylinder 303, that push rod one end of the lateral oil cylinder 303 passes through connector 304 and postive stop baffle 301
It is fixedly connected, 301 upper end of postive stop baffle and the upper end of support plate 306 are hinged, and the lower end of the support plate 306 is hinged
It is arranged in 308 top surface of pedestal.
In preferred scheme, telescopic rod 307 is equipped between the postive stop baffle 301 and support plate 306.
In preferred scheme, the madial wall and postive stop baffle 301 of the " u "-shaped groove 309 are far from support plate 306
MGE slide plates 302 are equipped on one side.
In preferred scheme, 309 bottom surface of " u "-shaped groove is equipped with guiding mechanism 305, and guiding mechanism 305 is used for
The push rod of lateral oil cylinder 303 is oriented to.
In preferred scheme, it is equipped with limited block 310 positioned at the position of 309 both sides of groove on 308 top surface of pedestal,
Limited block 310, which is bolted, to be arranged on 308 top surface of pedestal, and the wherein side of limited block 310 extends on groove 309
Side.
Embodiment 4：
Such as Fig. 6, on the basis of embodiment 2,3, the vertical oil cylinder 202 connects with hydraulic power unit 7 with lateral oil cylinder 303
Connect, the connecting pipe between oil cylinder and hydraulic power unit 7 is equipped with throttle valve 5, is additionally provided with branch pipe in connecting pipe, branch pipe one end with
Accumulator 6 connects.
The lifting process of steel box-girder 1 is as follows：
Steel box-girder 1 is lifted to above limit damper by crane ship, makes steel box-girder 1 and lateral cushioning mechanism 3 by playing large arm
Collision constrains the transverse movement amplitude of steel box-girder 1 under the effect of lateral flexibility limit damping；Hereafter crane ship continues off the hook, case
Beam makees vertical in-plane moving along the MGE slide plates 302 on postive stop baffle 301, until touching the work at 2 top of vertical buffer gear
Motion block 205 and rubber cushion blocks 206；Hereafter, 1 vertical motion amplitude of steel box-girder is under the cushioning effect of vertical buffer gear 2, gradually
It is reduced to zero, lifting rope relaxation, 1 steady dropping place of steel box-girder is on four vertical buffer gears 2；After 1 complete stability of steel box-girder, control
It makes 202 piston rod of vertical oil cylinder and is actively contracted to lowermost end, complete steel box-girder and fall beam operation.
Cylinder buffer principle is as follows：
When the rubber mat plate 206 or postive stop baffle 301 that are connect with vertical oil cylinder 202 with lateral oil cylinder 303 receive the pressure of steel box-girder 1
When power, in-oil cylinder pressure increases, and by throttle valve 5 into accumulator 6, oil cylinder is shunk fluid, when final realization extends shock
Between, reduce the purpose of impact force；And when steel box-girder 1 leaves rubber mat plate 206 or postive stop baffle 301, in-oil cylinder pressure subtracts
Small, fluid is flowed by accumulator 6 in oil cylinder, and oil cylinder is upheld, and is close to steel case to reach rubber mat plate 206 or postive stop baffle 301
The bottom surface of beam 1 and the effect of side form kinetic damping, when lifting ship drives steel box-girder 1 to pump, pass through rubber
Backing plate 206 or postive stop baffle 301 are close to the bottom surface of steel box-girder 1 and side and are formed by damping, finally enable steel box-girder 1 gentle
Get off, realizes and hung under stablizing.
It for those skilled in the art, without departing from the principle of the present invention, can also be right
Each facility locations and parameter are adjusted, and the adjustment of facility locations and parameter also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of steel box-girder lifts limit damper, it is characterized in that：Multigroup vertical buffer gear（2）It is arranged on bridge floor, often
One group includes two vertical buffer gears（2）, same group of vertical buffer gear（2）Side is set there are one lateral cushioning mechanism
（3）, lateral cushioning mechanism（3）Pass through holder（4）It is supported and fixed on bridge floor.
2. a kind of steel box-girder according to claim 1 lifts limit damper, it is characterised in that：The vertical buffering
Mechanism（2）Including vertical oil cylinder（202）, vertical oil cylinder（202）Push rod be arranged straight up, the upper end of push rod is fixed with ball
Body（203）, the upper end of push rod passes through sphere（203）It is connected with movable block（205）, movable block（205）Top surface be equipped with rubber
Rubber cushion plate（206）.
3. a kind of steel box-girder according to claim 2 lifts limit damper, it is characterised in that：The vertical oil cylinder
（202）It is arranged in pilot sleeve（201）It is interior, pilot sleeve（201）For the tubular structure of one end open, pilot sleeve（201）On
It is also arranged with and pilot sleeve（201）The identical quill of structure（204）, pilot sleeve（201）With quill（204）It opens
Mouth end is oppositely arranged, the vertical oil cylinder（202）Upper end be threaded through quill（204）On unclosed end.
4. a kind of steel box-girder according to claim 2 lifts limit damper, it is characterised in that：The lateral cushioning
Mechanism（3）Including pedestal（308）, pedestal（308）Top is equipped with postive stop baffle（301）, postive stop baffle（301）Side is equipped with support
Plate（306）.
5. a kind of steel box-girder according to claim 4 lifts limit damper, it is characterised in that：The pedestal
（308）Use section for the structure of " u "-shaped, pedestal（308）" u "-shaped groove（309）It is interior to be equipped with lateral oil cylinder（303）, described
Lateral oil cylinder（303）Push rod one end pass through connector（304）With postive stop baffle（301）Lower end be fixedly connected, it is described
Postive stop baffle（301）Upper end and support plate（306）Hinged, the described support plate in upper end（306）Lower end be hingedly arranged the bottom of at
Seat（308）Top surface.
6. a kind of steel box-girder according to claim 5 lifts limit damper, it is characterised in that：The postive stop baffle
（301）With support plate（306）Between be equipped with telescopic rod（307）.
7. a kind of steel box-girder according to claim 5 lifts limit damper, it is characterised in that：The " u "-shaped is recessed
Slot（309）Madial wall and postive stop baffle（301）Far from support plate（306）One side on be equipped with MGE slide plates（302）.
8. a kind of steel box-girder according to claim 5 or 7 lifts limit damper, it is characterised in that：The " u "-shaped
Groove（309）Bottom surface is equipped with guiding mechanism（305）, guiding mechanism（305）For lateral oil cylinder（303）Push rod be oriented to.
9. a kind of steel box-girder according to claim 5 lifts limit damper, it is characterised in that：The pedestal
（308）It is located at groove on top surface（309）The position of both sides is equipped with limited block（310）, limited block（310）It is bolted and sets
It sets in pedestal（308）On top surface, and limited block（310）Wherein side extends to groove（309）Top.
10. a kind of steel box-girder according to claim 5 lifts limit damper, it is characterised in that：The vertical oil
Cylinder（202）With lateral oil cylinder（303）And hydraulic power unit（7）Connection, oil cylinder and hydraulic power unit（7）Between connecting pipe on set
There is throttle valve（5）, branch pipe, branch pipe one end and accumulator are additionally provided in connecting pipe（6）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176455.7A CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176455.7A CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108557645A true CN108557645A (en) | 2018-09-21 |
| CN108557645B CN108557645B (en) | 2023-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810176455.7A Active CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
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| Country | Link |
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| CN (1) | CN108557645B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371843A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of multi-functional jack set up for bridge spanning the sea Simply-supported Steel Beams |
| CN109750602A (en) * | 2019-01-25 | 2019-05-14 | 中交二航局第二工程有限公司 | The anti-slamming of offshore lifting is quickly come to nothing device |
| CN114922086A (en) * | 2022-06-15 | 2022-08-19 | 中铁广州工程局集团第三工程有限公司 | Construction method for hoisting interchange ramp steel box girder |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080356A (en) * | 2010-12-17 | 2011-06-01 | 中铁大桥局集团第四工程有限公司 | Box girder positioning temporary supporting seat and positioning construction method of box girder |
| CN202880659U (en) * | 2012-10-16 | 2013-04-17 | 广东华尔辰海上风电工程有限责任公司 | Driven buffering hoisting equipment of offshore wind turbine generating set |
| JP2013177240A (en) * | 2012-02-10 | 2013-09-09 | Jfe Engineering Corp | Vibration restraining method and device of cargo handling machine |
| CN203403369U (en) * | 2013-07-12 | 2014-01-22 | 宁波华星钢构股份有限公司 | Bridge installing and positioning support |
| CN203865875U (en) * | 2014-05-29 | 2014-10-08 | 鞍钢集团矿业公司 | Blocking and buffering device for bridge crane |
| CN204418025U (en) * | 2014-12-05 | 2015-06-24 | 中交一航局第三工程有限公司 | Marine crane ship pile equipment adjuster |
| CN204455856U (en) * | 2015-02-10 | 2015-07-08 | 中交一航局第一工程有限公司 | A kind of pressure mechanism in place of prefabricated pier |
| CN204895792U (en) * | 2015-08-07 | 2015-12-23 | 衡水橡胶股份有限公司 | Marine buffer that supports of platform chunk |
| CN206784190U (en) * | 2017-06-09 | 2017-12-22 | 中铁建大桥工程局集团第五工程有限公司 | Large-span Steel Box Beam liftable self-propelled successively incremeantal launching method system |
| CN107558372A (en) * | 2017-08-24 | 2018-01-09 | 宁波市产城生态建设集团有限公司 | Prefabricated U-shaped beam falls beam positioner and positioning construction method |
| CN206955406U (en) * | 2017-06-02 | 2018-02-02 | 温州市正立建筑设计有限公司 | A kind of building-construction lifting device |
-
2018
- 2018-03-03 CN CN201810176455.7A patent/CN108557645B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080356A (en) * | 2010-12-17 | 2011-06-01 | 中铁大桥局集团第四工程有限公司 | Box girder positioning temporary supporting seat and positioning construction method of box girder |
| JP2013177240A (en) * | 2012-02-10 | 2013-09-09 | Jfe Engineering Corp | Vibration restraining method and device of cargo handling machine |
| CN202880659U (en) * | 2012-10-16 | 2013-04-17 | 广东华尔辰海上风电工程有限责任公司 | Driven buffering hoisting equipment of offshore wind turbine generating set |
| CN203403369U (en) * | 2013-07-12 | 2014-01-22 | 宁波华星钢构股份有限公司 | Bridge installing and positioning support |
| CN203865875U (en) * | 2014-05-29 | 2014-10-08 | 鞍钢集团矿业公司 | Blocking and buffering device for bridge crane |
| CN204418025U (en) * | 2014-12-05 | 2015-06-24 | 中交一航局第三工程有限公司 | Marine crane ship pile equipment adjuster |
| CN204455856U (en) * | 2015-02-10 | 2015-07-08 | 中交一航局第一工程有限公司 | A kind of pressure mechanism in place of prefabricated pier |
| CN204895792U (en) * | 2015-08-07 | 2015-12-23 | 衡水橡胶股份有限公司 | Marine buffer that supports of platform chunk |
| CN206955406U (en) * | 2017-06-02 | 2018-02-02 | 温州市正立建筑设计有限公司 | A kind of building-construction lifting device |
| CN206784190U (en) * | 2017-06-09 | 2017-12-22 | 中铁建大桥工程局集团第五工程有限公司 | Large-span Steel Box Beam liftable self-propelled successively incremeantal launching method system |
| CN107558372A (en) * | 2017-08-24 | 2018-01-09 | 宁波市产城生态建设集团有限公司 | Prefabricated U-shaped beam falls beam positioner and positioning construction method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371843A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of multi-functional jack set up for bridge spanning the sea Simply-supported Steel Beams |
| CN109371843B (en) * | 2018-11-26 | 2021-08-03 | 中铁大桥科学研究院有限公司 | Multifunctional jack for erecting simply-supported steel beam of sea-crossing bridge |
| CN109750602A (en) * | 2019-01-25 | 2019-05-14 | 中交二航局第二工程有限公司 | The anti-slamming of offshore lifting is quickly come to nothing device |
| CN109750602B (en) * | 2019-01-25 | 2023-09-22 | 中交二航局第二工程有限公司 | Slamming-preventing quick emptying device for offshore hoisting |
| CN114922086A (en) * | 2022-06-15 | 2022-08-19 | 中铁广州工程局集团第三工程有限公司 | Construction method for hoisting interchange ramp steel box girder |
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| Publication number | Publication date |
|---|---|
| CN108557645B (en) | 2023-06-09 |
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