CN114737480A - Multifunctional offshore steel box girder construction platform - Google Patents
Multifunctional offshore steel box girder construction platform Download PDFInfo
- Publication number
- CN114737480A CN114737480A CN202210263668.XA CN202210263668A CN114737480A CN 114737480 A CN114737480 A CN 114737480A CN 202210263668 A CN202210263668 A CN 202210263668A CN 114737480 A CN114737480 A CN 114737480A
- Authority
- CN
- China
- Prior art keywords
- platform
- rod
- steel box
- box girder
- double
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
- E01D21/10—Cantilevered erection
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of offshore construction equipment, in particular to a multifunctional offshore steel box girder construction platform. The upper platform comprises two lower platforms, telescopic beams are arranged on the lower platforms in a sliding mode respectively, one ends, close to each other, of the two telescopic beams can be disassembled and connected, the upper end of each lower platform is fixedly connected with a vertical supporting arm, the top end of each vertical supporting arm is connected with an upper platform respectively, the bottom of one end of each upper platform is fixedly connected with the corresponding vertical supporting arm, the bottom of the other end is fixedly connected with a walking mechanism, a lead screw top frame is further arranged on one side, close to the vertical supporting arms, of the bottom end of each upper platform, and one ends, close to each other, of the two upper platforms are connected through an adjustable stay bar mechanism. According to the invention, the upper platform, the lower platform, the vertical supporting arms, the telescopic beams and the adjustable brace rod mechanisms are arranged to form a closed-loop construction platform, so that the closed-loop construction platform is suspended on the existing bridge section, the traditional steps of driving and dismounting the tubular pile are omitted, the construction efficiency is improved, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of offshore construction equipment, in particular to a multifunctional offshore steel box girder construction platform.
Background
At present, the steel pipe piles are driven into the offshore construction platform to serve as a supporting and erecting platform in most construction of the offshore construction platform, a sufficient and stable working surface can be provided for construction, the construction platform is influenced by a plurality of factors such as an ocean environment, requirements on construction technology and frame materials built by the platform are high, the construction difficulty is high, the position is fixed, and the offshore construction platform is not suitable for bridge projects with multi-point construction and complex stations. And the steel pipe pile platform is complicated in erection and dismantling process, the steel beam surface is damaged by position fixing, the construction speed is low, more materials are consumed, and a steel casing is required to be processed in the cast-in-place pile construction, so that the engineering cost is relatively increased.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a multifunctional offshore steel box girder construction platform, and particularly discloses the following technical scheme:
the utility model provides a multi-functional marine steel case roof beam construction platform, includes two lower part platforms, it is provided with flexible roof beam, two to slide respectively on the platform of lower part flexible roof beam one end that is close to each other can be dismantled and connect, the upper end of lower part platform is fixedly connected with vertical support arm respectively, vertical support arm's top is connected with the upper portion platform respectively, the one end bottom and the vertical support arm fixed connection of upper portion platform, the bottom of the other end is fixedly connected with respectively walks capable mechanism, one side that vertical support arm is close to in the bottom of upper portion platform still is provided with the lead screw roof-rack.
Furthermore, the walking mechanism comprises a walking frame, the top end of the walking frame is fixedly connected to the upper platform, four corners of the bottom end of the walking frame are respectively provided with hydraulic telescopic supporting legs, and walking wheels are mounted at the bottom ends of the hydraulic telescopic supporting legs.
Furthermore, a driving motor is fixedly mounted on the walking frame, and the driving motor drives the walking wheels to rotate through a gear box.
Furthermore, one end of each of the two telescopic beams, which is close to each other, is fixed through a bolt and a U-shaped bolt.
Further, the lower platform is of a hollow cuboid truss structure, and the telescopic beam penetrates through a center hole of the lower platform and is in sliding connection with the lower platform.
Furthermore, the telescopic beam and the lower platform are limited and fixed through a fixing pin.
Furthermore, one ends of the two upper platforms, which are close to each other, are connected through an adjustable stay bar mechanism.
Further, adjustable vaulting pole mechanism includes four first regulation poles that are rectangle parallel distribution, first regulation pole includes first double-end long lead screw, the both ends of first double-end long lead screw are connected with first jaw lead screw through first screw pole respectively, first regulation pole is connected with the upper portion platform of both sides respectively through the first jaw lead screw at both ends, all is the splayed between two adjacent first regulation poles and is connected with two second regulation poles, the second is adjusted the pole and is included the second jaw lead screw at second screw pole and second screw pole both ends, the second jaw lead screw at second regulation pole both ends articulates respectively on two adjacent first double-end long lead screws.
Further, adjustable vaulting pole mechanism includes that four are rectangle parallel distribution's third and adjust the pole, the third is adjusted the pole and is included third double-end long lead screw, the one end of third double-end long lead screw is connected with the upper portion platform of one side, and the other end is connected with the third jaw lead screw through third screw pole, the one end that third double-end long lead screw was kept away from to third jaw lead screw is connected with the upper portion platform of opposite side, all is the chevron shape between the double-phase adjacent third regulation pole and is connected with two fourth regulation poles, the fourth is adjusted the pole and is included the fourth jaw lead screw at fourth screw pole and fourth screw pole both ends, the fourth jaw lead screw at fourth regulation pole both ends articulates respectively on two adjacent third double-end long lead screws.
Furthermore, a cantilever platform is fixedly arranged below the upper platform on the vertical supporting arm, and the bottom end of the cantilever platform is connected with the lower platform through a supporting rod.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the upper platform, the lower platform, the vertical supporting arms, the telescopic beams and the adjustable brace rod mechanisms are arranged to form a closed-loop construction platform, so that the closed-loop construction platform is suspended on the existing bridge section, the traditional steps of driving and dismantling the tubular pile are omitted, the construction efficiency is improved, and the construction cost is saved; the length adjustment can be realized to flexible roof beam and adjustable vaulting pole mechanism all, and the bridge width that adapts to difference that can be better picks the arm platform and is located the below of upper portion platform, can adapt to the bridge floor and become the circumstances such as cross slope or become longitudinal slope, walks the bottom four corners department of walking the frame and is provided with the scalable landing leg of hydraulic pressure respectively, through the height of adjusting the scalable landing leg of hydraulic pressure, can guarantee to walk the road wheel and can not appear the problem of coming to the air.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the present invention in a pier-passing state.
FIG. 3 is a schematic view of the running gear of the invention.
Fig. 4 is a top view of the adjustable brace mechanism of embodiment 1.
Fig. 5 is a top view of an adjustable brace mechanism of embodiment 2.
1-a lower platform, 2-a telescopic beam, 3-a vertical supporting arm, 4-an upper platform, 5-a walking mechanism, 51-a walking frame, 52-a hydraulic telescopic supporting leg, 53-a walking wheel, 54-a driving motor, 55-a gear box, 6-a screw rod top frame, 7-a cantilever arm platform, 8-a first adjusting rod, 9-a second adjusting rod, 10-a third adjusting rod and 11-a fourth adjusting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The utility model provides a multi-functional marine steel case roof beam construction platform, includes two lower part platforms 1, it is provided with flexible roof beam 2, two to slide respectively on the platform 1 of lower part flexible roof beam 2 one end that is close to each other can be dismantled the connection, the upper end of lower part platform 1 fixedly connected with vertical support arm 3 respectively, vertical support arm 3's top is connected with upper portion platform 4 respectively, the one end bottom and the 3 fixed connection of vertical support arm of upper portion platform 4, the bottom of the other end is fixedly connected with respectively walks capable mechanism 5, one side that vertical support arm 3 is close to in the bottom of upper portion platform 4 still is provided with lead screw roof-rack 6.
In this embodiment, the running mechanism 5 includes a running frame 51, the top end of the running frame 51 is fixedly connected to the upper platform 4, four corners of the bottom end of the running frame 51 are respectively provided with a hydraulic telescopic leg 52, and the bottom end of the hydraulic telescopic leg 52 is provided with a running wheel 53.
The height of the hydraulic telescopic support legs 52 can be respectively adjusted, so that the walking wheels 53 can not be separated from the bridge floor in the walking process, and meanwhile, the telescopic beams 2 on the two sides can be ensured to be in a horizontal state.
In this embodiment, a driving motor 54 is fixedly mounted on the traveling frame 51, and the driving motor 54 drives the traveling wheels 53 to rotate through a gear box 55. The walking mechanisms 5 on two sides of the construction platform are driven by respective driving motors and can also be synchronously controlled by a controller, so that the construction platform can be better suitable for construction of a variable cross slope bridge floor.
In this embodiment, two the one end that flexible roof beam 2 is close to each other is fixed through bolt and U type bolt, can be convenient for two flexible roof beam 2's connection and disconnection, when carrying out the construction, two flexible roof beams 2 link together, can improve the stability and the security of whole platform, when walking the pier, two flexible roof beams 2 disconnection to better realization pier operation.
In this embodiment, lower part platform 1 is hollow cuboid truss structure, flexible roof beam 2 run through lower part platform 1 the centre bore and with lower part platform 1 sliding connection, the slip of the flexible roof beam 2 of being convenient for, after the slip is accomplished, can carry out spacing fixed to flexible roof beam 2 and lower part platform 1 through the fixed pin.
In this embodiment, two ends of the upper platforms 4, which are close to each other, are connected through an adjustable brace mechanism, the adjustable brace mechanism includes four first adjusting rods 8 which are distributed in a rectangular parallel manner, each first adjusting rod 8 includes a first double-ended long screw rod, two ends of each first double-ended long screw rod are connected with first fork screw rods through first nut rods respectively, each first adjusting rod 8 is connected with the upper platforms 4 on two sides through the first fork screw rods on two ends respectively, two second adjusting rods 9 are connected between two adjacent first adjusting rods 8 in a splayed manner, each second adjusting rod 9 includes a second nut rod and second fork screw rods on two ends of each second nut rod, and the second fork screw rods on two ends of each second adjusting rod 9 are hinged to the two adjacent first double-ended long screw rods respectively.
The structure of the adjustable support rod mechanism is arranged, so that the distance between the upper platforms 4 on the two sides can be adjusted conveniently, and the adjustable support rod mechanism can be better adapted to bridge decks with different widths.
In this embodiment, the vertical support arm 3 is located the below of upper portion platform 4 and still fixedly is provided with and picks arm platform 7, the bottom of picking arm platform 7 is passed through the bracing piece and is connected with lower part platform 1, can further heighten the overall stability of platform.
Example 2
The technical solution of this embodiment is substantially the same as embodiment 1, and the only difference lies in that the adjustable brace mechanism in this embodiment includes four third adjusting rods 10 that are rectangular parallel distribution, the third adjusting rods 10 include third double-ended long lead screw, the one end of third double-ended long lead screw is connected with upper portion platform 4 of one side, and the other end is connected with third jaw lead screw through third nut rod, the one end that third double-ended long lead screw was kept away from to third jaw lead screw is connected with upper portion platform 4 of opposite side, all is the chevron shape between two adjacent third adjusting rods 10 and is connected with two fourth adjusting rods 11, fourth adjusting rods 11 include fourth nut rod and the fourth jaw lead screw at fourth nut rod both ends, the fourth jaw lead screw at fourth adjusting rod 11 both ends articulates respectively on two adjacent third double-ended long lead screw.
The structural arrangement of the adjustable stay bar mechanism in the embodiment can also facilitate the adjustment of the distance between the platforms 4 at the upper parts of the two sides, thereby being better suitable for bridge decks with different widths.
The working principle of the invention is as follows:
the walking state is as follows: the walking mechanism 5 is in contact with the bridge floor, the screw rod top frame 6 is folded, the lower telescopic beam 2 is in a connection state, the driving motor 54 drives the gear box 55 to work, the walking wheels 53 are driven to rotate through gear transmission, the forward and backward movement of the construction platform are realized, and the span of the construction platform can be adjusted by controlling the telescopic amount of the lower telescopic beam 2, so that the construction platform is suitable for different bridge widths.
Construction state: the construction platform is moved to the construction position of the bridge circumferential weld under the walking state, the screw rod top frame 6 is put down to be in contact with the bridge floor, the support is fixed, the walking wheels 53 are folded, the telescopic beam 2 at the lower part is in a connection state, the stability of the construction platform is kept, and then constructors can construct at all positions of the platform.
And (3) a pier passing state: the traveling wheels 53 are put down to be in contact with the bridge floor, the adjustable stay bar mechanism is connected, the screw rod top frame 6 is retracted, the telescopic beam 2 at the lower part is adjusted to be in a contraction disconnection state, the safe distance between the construction platform and a pier in the moving process is guaranteed, then in the same traveling state, the driving motor 54 drives the gear box 55 to work, the traveling wheels 53 are driven to rotate through gear transmission, the construction platform is advanced and retreated, and the length of the adjustable stay bar mechanism is adjusted in advance, so that the construction platform is suitable for different bridge widths.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention will still fall within the technical scope of the present invention.
Claims (10)
1. The utility model provides a multi-functional marine steel case roof beam construction platform, its characterized in that, includes two lower part platforms, it is provided with flexible roof beam, two to slide respectively on the platform of lower part flexible roof beam one end that is close to each other can be dismantled the connection, the upper end of lower part platform is fixedly connected with vertical support arm respectively, vertical support arm's top is connected with the upper portion platform respectively, the one end bottom and the vertical support arm fixed connection of upper portion platform, the bottom of the other end is fixedly connected with respectively walks capable mechanism, one side that vertical support arm is close to in the bottom of upper portion platform still is provided with the lead screw roof-rack.
2. The multifunctional offshore steel box girder construction platform as claimed in claim 1, wherein the walking mechanism comprises a walking frame, the top end of the walking frame is fixedly connected to the upper platform, four corners of the bottom end of the walking frame are respectively provided with hydraulic telescopic legs, and walking wheels are mounted at the bottom ends of the hydraulic telescopic legs.
3. The multifunctional offshore steel box girder construction platform of claim 2, wherein a driving motor is fixedly mounted on the traveling frame, and the driving motor drives the traveling wheels to rotate through a gear box.
4. The multifunctional offshore steel box girder construction platform of claim 1, wherein the ends of the two telescopic girders close to each other are fixed by bolts and U-bolts.
5. The multifunctional offshore steel box girder construction platform of claim 1, wherein the lower platform is a hollow rectangular truss structure, and the telescopic girder penetrates through a central hole of the lower platform and is slidably connected with the lower platform.
6. The multifunctional offshore steel box girder construction platform of claim 5, wherein the telescopic girder and the lower platform are fixed by a fixing pin.
7. The multifunctional offshore steel box girder construction platform of claim 1, wherein ends of the two upper platforms close to each other are connected by an adjustable brace mechanism.
8. The multifunctional offshore steel box girder construction platform according to claim 7, wherein the adjustable brace mechanism comprises four first adjusting rods distributed in a rectangular parallel manner, each first adjusting rod comprises a first double-ended long screw rod, each first double-ended long screw rod is connected with a first fork screw rod at each end through a first nut rod, each first adjusting rod is connected with the upper platforms at each side through the first fork screw rods at each end, two second adjusting rods are connected between the two adjacent first adjusting rods in a splayed manner, each second adjusting rod comprises a second nut rod and a second fork screw rod at each end of the second nut rod, and the second fork screw rods at each end of the second adjusting rods are hinged to the two adjacent first double-ended long screw rods.
9. The multifunctional offshore steel box girder construction platform of claim 7, wherein the adjustable brace mechanism comprises four third adjusting rods which are distributed in a rectangular parallel manner, each third adjusting rod comprises a third double-ended long lead screw, one end of each third double-ended long lead screw is connected with the upper platform on one side, the other end of each third double-ended long lead screw is connected with a third jaw lead screw through a third nut rod, one end, far away from the third double-ended long lead screw, of each third fork lead screw is connected with the upper platform on the other side, two fourth adjusting rods are connected between two adjacent third adjusting rods in a herringbone manner, each fourth adjusting rod comprises a fourth nut rod and fourth jaw lead screws at two ends of the fourth nut rods, and the fourth jaw lead screws at two ends of each fourth adjusting rod are respectively hinged to two adjacent third double-ended long lead screws.
10. The multifunctional offshore steel box girder construction platform as claimed in claim 1, wherein a cantilever platform is further fixedly arranged on the vertical support arm below the upper platform, and the bottom end of the cantilever platform is connected with the lower platform through a support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263668.XA CN114737480A (en) | 2022-03-17 | 2022-03-17 | Multifunctional offshore steel box girder construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263668.XA CN114737480A (en) | 2022-03-17 | 2022-03-17 | Multifunctional offshore steel box girder construction platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114737480A true CN114737480A (en) | 2022-07-12 |
Family
ID=82277516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210263668.XA Pending CN114737480A (en) | 2022-03-17 | 2022-03-17 | Multifunctional offshore steel box girder construction platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114737480A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0728872A1 (en) * | 1995-02-21 | 1996-08-28 | Robert J. Wildner | Environmentally safe work platform with buoyancy system |
| JP2006077521A (en) * | 2004-09-13 | 2006-03-23 | Oriental Construction Co Ltd | Bridge constructing apparatus |
| CN202090287U (en) * | 2011-05-05 | 2011-12-28 | 武汉一冶钢结构有限责任公司 | Moving device for installing cantilever arm of steel box girder |
| CN109881590A (en) * | 2019-04-18 | 2019-06-14 | 中冶建工集团有限公司 | Bridge steel box girder high altitude operation operating platform and building method |
| CN110820579A (en) * | 2019-11-15 | 2020-02-21 | 广州市市政集团有限公司 | Construction method based on movable steel box girder road-crossing construction working platform |
| CN210856969U (en) * | 2019-09-23 | 2020-06-26 | 中国建筑股份有限公司 | Movable telescopic cantilever hanging basket |
| CN211446612U (en) * | 2019-10-30 | 2020-09-08 | 广州市市政集团有限公司 | Operating platform for steel box girder aerial work |
| CN213867346U (en) * | 2020-09-15 | 2021-08-03 | 中交第二航务工程局有限公司 | Bridge inspection vehicle adapting to height change of beam bottom |
| CN214656412U (en) * | 2021-01-31 | 2021-11-09 | 广西长长路桥建设有限公司 | Movable construction platform for welding steel box girder |
| CN216040667U (en) * | 2021-08-04 | 2022-03-15 | 海波重型工程科技股份有限公司 | Multifunctional telescopic cantilever hanging rack |
-
2022
- 2022-03-17 CN CN202210263668.XA patent/CN114737480A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0728872A1 (en) * | 1995-02-21 | 1996-08-28 | Robert J. Wildner | Environmentally safe work platform with buoyancy system |
| JP2006077521A (en) * | 2004-09-13 | 2006-03-23 | Oriental Construction Co Ltd | Bridge constructing apparatus |
| CN202090287U (en) * | 2011-05-05 | 2011-12-28 | 武汉一冶钢结构有限责任公司 | Moving device for installing cantilever arm of steel box girder |
| CN109881590A (en) * | 2019-04-18 | 2019-06-14 | 中冶建工集团有限公司 | Bridge steel box girder high altitude operation operating platform and building method |
| CN210856969U (en) * | 2019-09-23 | 2020-06-26 | 中国建筑股份有限公司 | Movable telescopic cantilever hanging basket |
| CN211446612U (en) * | 2019-10-30 | 2020-09-08 | 广州市市政集团有限公司 | Operating platform for steel box girder aerial work |
| CN110820579A (en) * | 2019-11-15 | 2020-02-21 | 广州市市政集团有限公司 | Construction method based on movable steel box girder road-crossing construction working platform |
| CN213867346U (en) * | 2020-09-15 | 2021-08-03 | 中交第二航务工程局有限公司 | Bridge inspection vehicle adapting to height change of beam bottom |
| CN214656412U (en) * | 2021-01-31 | 2021-11-09 | 广西长长路桥建设有限公司 | Movable construction platform for welding steel box girder |
| CN216040667U (en) * | 2021-08-04 | 2022-03-15 | 海波重型工程科技股份有限公司 | Multifunctional telescopic cantilever hanging rack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101736696B (en) | Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine | |
| CN112962459B (en) | Integrated bridge girder erection machine for piling, pier mounting and girder erection and bridge construction method | |
| CN102373671A (en) | Construction method for flexible arch bridge with arch crown push of steel truss girder | |
| CN201610524U (en) | Box double girder type bridge machine for erection of both railway and highway T-beams | |
| CN210031458U (en) | Large-span height difference tie bar arch structure pushing mechanism | |
| CN209760037U (en) | large-span quick bridge double-vehicle erection system | |
| CN113152289B (en) | Pile driving and beam erecting integrated construction method | |
| CN110485255A (en) | A kind of collapsible emergency bridge and application method | |
| CN109853355B (en) | Vehicle-mounted emergency mechanized bridge with front guide beam and erection method thereof | |
| CN112144401B (en) | Bridge girder erection machine over-span method based on curve track and large longitudinal slope environment | |
| CN107604828B (en) | Bridge girder erection machine for double T-shaped girder bridge | |
| CN114737480A (en) | Multifunctional offshore steel box girder construction platform | |
| CN113047179A (en) | Pile and frame roof beam all-in-one | |
| CN210827111U (en) | Environment-friendly down self-propelled steel trestle structure | |
| CN102071641A (en) | Integral bridge girder erection machine of distributed landing leg type transportation rack of concrete beam packing bridge crane and bridge girder erection engineering method thereof | |
| CN215925692U (en) | Overlength multispan assembly type integrated multifunctional bridge girder erection machine | |
| CN114016424B (en) | Self-propelled platform and method suitable for small-angle oblique crossing bridge construction | |
| CN215329387U (en) | Pile and frame roof beam all-in-one | |
| CN113832869B (en) | Urban overhead construction combination method | |
| CN110172923B (en) | Environment-friendly type descending self-propelled steel trestle structure | |
| CN113774813A (en) | Traction deviation rectifying equipment convenient for installing large-section steel truss box girder | |
| CN112853998A (en) | Integrated assembling bridge girder erection machine suitable for medium and small spans and construction method thereof | |
| CN215052189U (en) | Bridge girder erection machine for box girder splicing wide bridge | |
| CN220394316U (en) | Efficient bridge girder erection machine | |
| CN205295957U (en) | Device of setting a roof beam in place |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220712 |
|
| RJ01 | Rejection of invention patent application after publication |