CN114809571A - Method for lifting high-altitude operation platform by adopting carrying pole beam - Google Patents
Method for lifting high-altitude operation platform by adopting carrying pole beam Download PDFInfo
- Publication number
- CN114809571A CN114809571A CN202210427789.3A CN202210427789A CN114809571A CN 114809571 A CN114809571 A CN 114809571A CN 202210427789 A CN202210427789 A CN 202210427789A CN 114809571 A CN114809571 A CN 114809571A
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- operation platform
- mast
- lifting
- platform
- pole beam
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Support Of Aerials (AREA)
Abstract
The invention discloses a method for lifting an aerial operation platform by adopting a carrying pole beam, which comprises the following steps: step 1: a support for an operation platform is arranged at the lower part of the mast; step 2: the operation platform is divided into two parts to be installed, one part is temporarily fixed after being hoisted to the support, the other part of the operation platform is hoisted, and the two parts of the operation platform are integrally assembled; and step 3: hoisting the carrying pole beam, respectively inserting two masts into two ends of the carrying pole beam, connecting each end of the carrying pole beam with the operating platform through a steel wire rope, and releasing the temporary fixation of the operating platform; and 4, step 4: synchronously lifting the two operating platforms along the mast antenna by lifting the carrying pole beam; and 5: after the operation platform is lifted to be in place, personnel enter the operation platform, and the operation platform and the mast are welded and fixed by utilizing the horizontal support and the inclined support. This application has changed the position of operation platform hoisting point and hoist, has avoided the mast, can once only promote two operation platforms, convenient operation, lifting efficiency height.
Description
Technical Field
The invention relates to the technical field of mast demolition, in particular to a method for lifting an aerial operation platform by adopting a carrying pole beam.
Background
A decorative mast is arranged on one side of the northeast corner of a roof of a super high-rise building which is built for many years, and an owner decides to dismantle the roof mast for some reasons. Referring to fig. 1, the mast is composed of two symmetrical triangular trusses 1 and independent mast 2 antennas, the total height is about 51.2m, the length of the upper independent mast antenna is about 21.5m, and the length of the lower triangular truss is about 29.7 m. The distance between the two triangular trusses is 9.3m, and two middle tie rods are arranged between the triangular trusses. All the rods are connected by full welding, the main specifications of the steel pipes are D1300 multiplied by 20, D1100 multiplied by 20 and D900 multiplied by 18, and the total weight of the mast is about 230 tons.
The mast is generally removed by section cutting, when the mast is removed, an operation platform is required to be installed on the mast for cutting by workers, the operation platform is lifted by a tower crane in the conventional way, but when a single operation platform is lifted, a lifting point and a lifting appliance of the operation platform just conflict with the mast, so that the operation platform cannot be lifted or a hoist is used for lifting the operation platform through a chain block, but the engineering mast is independent, large in height, smooth in surface, free of the position where the hoist can be hung, and inconvenient to operate.
Disclosure of Invention
The invention provides a method for lifting an overhead operation platform by adopting a carrying pole beam, which changes the positions of a lifting point and a lifting appliance of the operation platform, avoids masts, can lift two operation platforms at one time, and has convenient operation and high lifting efficiency.
The technical problem to be solved is that: the conventional method for dismantling the mast is to lift the operating platform by using a tower crane, but when a single operating platform is lifted, a lifting point and a lifting appliance of the operating platform just conflict with the mast, so that the operating platform cannot be lifted.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a method for lifting an aerial operation platform by adopting a carrying pole beam, which comprises the following steps:
step 1: a support for an operation platform is arranged at the lower part of the mast;
step 2: the operation platform is divided into two halves to be installed, one half is hoisted to the support and then temporarily fixed, then the other half of the operation platform is hoisted, and the two halves of the operation platform are integrally assembled after the operation platform is completed;
and step 3: hoisting the carrying pole beam, respectively inserting two masts into two ends of the carrying pole beam, respectively connecting each end of the carrying pole beam with the operating platform through four steel wire ropes, releasing the temporary fixation of the operating platform and preparing for lifting;
and 4, step 4: synchronously lifting the two operating platforms along the mast antenna by lifting the carrying pole beam;
and 5: after the operation platform is lifted to be in place, a person enters the operation platform, a safety steel wire rope is sleeved on the mast, the safety steel wire rope is connected through a shackle, the safety steel wire rope is connected with the mast ladder through a snap ring, four lockset for fixing the chain blocks are installed on the safety steel wire rope, one ends of the four chain blocks are connected with the lockset, the other ends of the four chain blocks are connected with lifting lugs on the bottom surface of the operation platform, the operation platform is temporarily stabilized, the operation platform and the mast are welded and fixed through horizontal supports and inclined supports, and the bottom surface of the operation platform is sealed through a steel plate net.
The invention relates to a method for lifting a high-altitude operation platform by adopting a carrying pole beam, and further, four brackets are arranged on each mast, the four brackets are divided into two groups and symmetrically arranged on two opposite sides of the mast, and the brackets of each group are connected by adopting angle steel; the bracket comprises a horizontal rod piece and an inclined rod piece, wherein one ends of the horizontal rod piece and the inclined rod piece are connected with each other.
The invention relates to a method for lifting an overhead operation platform by adopting a carrying pole beam, and further, the temporary fixation in the step 2 is concrete, a safety steel wire rope is encircled on a mast and is connected by a shackle, the safety steel wire rope is fixed on a mast ladder by the shackle, four lockset for fixing a chain block are arranged on the safety steel wire rope, one end of the chain block is connected with the lockset, the other end of the chain block is connected with the operation platform, and the operation platform is temporarily fixed.
The invention relates to a method for lifting an overhead operation platform by adopting a carrying pole beam, which is characterized in that the operation platform comprises a bottom support frame, guard rails welded on three sides of the support frame and a steel plate net laid on the support frame, and a passage for a mast to pass through is formed in the middle of the two half operation platforms after being assembled.
The invention relates to a method for lifting an overhead operation platform by adopting a carrying pole beam.
The invention relates to a method for lifting an overhead operation platform by adopting a carrying pole beam, and further, in step 4, when the operation platform is lifted, two sliding ropes are hung on each operation platform, and personnel control the moving direction and the shaking amplitude of the operation platform through the sliding ropes in the process of lifting the operation platform.
The invention relates to a method for lifting a high-altitude operation platform by using a carrying pole beam, which further comprises the step 3 that when the carrying pole beam is hoisted, one side of the carrying pole beam is firstly close to a mast antenna, one end of the carrying pole beam is firstly inserted into the mast antenna, the other end of the carrying pole beam is assisted by a sliding rope and slowly straightened, after the straightening, the carrying pole beam is assisted by the sliding rope to be stable, the whole carrying pole beam is translated to the other side, and the carrying pole beam is in place.
The invention relates to a method for lifting a high-altitude operation platform by adopting a carrying pole beam, which is characterized in that the carrying pole beam comprises two mutually parallel main beams, an inclined strut and a horizontal strut, wherein the inclined strut and the horizontal strut are connected with the two main beams, U-shaped spaces with outward openings are respectively formed at two ends of the main beams, an anti-clamping component is arranged at the inner side of the end part of each main beam, and the anti-clamping component comprises an arc section which protrudes from one side of the main beam.
Compared with the prior art, the invention has the following beneficial effects:
the positions of the operating platform lifting points and the lifting appliance are changed by arranging the matched carrying pole beams, the masts are avoided, the two operating platforms can be lifted at one time, the operation is convenient, and the lifting efficiency is high; in addition, through set up the universal wheel on operation platform, can avoid operation platform lift in-process and mast antenna to block.
The invention will be further explained with reference to the drawings.
Drawings
FIG. 1 is a schematic structural diagram of the background art of the present invention;
FIG. 2 is a top view of the bracket mounting of the present invention;
FIG. 3 is a side view of the bracket mounting of the present invention;
FIG. 4 is a perspective view of the operation platform of the present invention;
FIG. 5 is a top view of the work platform of the present invention;
FIG. 6 is a cross-sectional view of the work platform of the present invention;
FIG. 7 is a schematic view of the structure of the universal wheel assembly of the present invention;
fig. 8 is a schematic plan view of the inventive carrying pole beam;
FIG. 9 is a schematic view of a mating structure of the main beam and the anti-seize assembly according to the present invention;
fig. 10 is a schematic view of the structure of the present invention with one end of the carrying pole beam inserted into the mast;
fig. 11 is a schematic view of the adjusting structure of the shoulder pole beam of the present invention;
fig. 12 is a schematic view of the present invention showing the horizontal movement of the carrying pole beam;
fig. 13 is a schematic structural view of the shoulder pole beam lifting operation platform of the present invention.
Reference numerals are as follows:
1. a triangular truss; 2. a mast; 3. a support; 31. angle steel; 32. a horizontal bar member; 33. tilting the rod member; 4. an operating platform; 41. a support frame; 42. protecting the fence; 43. a channel; 44. a universal wheel; 5. a shoulder pole beam; 51. a main beam; 52. bracing; 53. horizontally supporting; 54. a U-shaped space; 55. an anti-seize assembly; 56. a reinforcing diagonal rod; 6. horizontally supporting; 7. and (5) obliquely supporting.
Detailed Description
The invention relates to a method for lifting an aerial operation platform by adopting a carrying pole beam, which comprises the following steps:
step 1: with reference to fig. 2 and 3, a full hall scaffold is erected within the range of a triangular truss 1 and is hung on a roof, the roof is hung on the triangular truss 1 in an attached manner, supports 3 for operating platforms 4 are installed on the lower portion of a mast 2 and are used for supporting the operating platforms 4 to be assembled at high altitude, four supports 3 are arranged on each mast 2 and are divided into two groups, the supports are symmetrically arranged on two opposite sides of the mast 2, angle steel 31 is adopted between each group of supports 3 to connect the supports, the stability of the supports 3 is guaranteed, each support 3 comprises a horizontal rod piece 32 and an inclined rod piece 33, the horizontal rod piece 32 and the inclined rod piece 33 are connected with the mast 2 in a welded manner.
Step 2: with reference to fig. 4-7, the operation platform 4 is assembled on the roof, and is divided into two halves for installation, one half is hoisted to the support 3, two chain blocks are used for temporarily fixing the platform, then the other half of the operation platform 4 is hoisted, and after the operation platform is assembled, the two half of the operation platform 4 are welded and fixed to complete the whole assembly. Specifically, embrace safe wire rope on mast 2 to connect with the shackle, be fixed in safe wire rope on mast 2 cat ladder with the snap ring, install the tool to lock of four fixed chain blocks on safe wire rope, chain block one end is connected with the tool to lock, and the other end is connected with operation platform 4, fixes operation platform 4 temporarily.
Each half of the operation platform 4 comprises a bottom support frame 41, guard rails 42 welded on three sides of the bottom support frame 41, and a steel plate mesh laid on the bottom support frame 41, the two half of the operation platform 4 are assembled in the middle to form a channel 43 for the mast 2 to pass through, universal wheels 44 are fixedly mounted at four corners of the operation platform 4 at the inner side of the channel 43, and the universal wheels 44 can prevent the operation platform 4 from being clamped with the mast 2 in the lifting process. Two sliding ropes are hung at the bottom of each operating platform 4 respectively and used for controlling the moving direction and the shaking amplitude of the operating platform 4 in the lifting process; the personnel avoid the range of the operation platform 4 to finely adjust the operation platform 4 at the oblique lower part of the operation frame.
And step 3: referring to fig. 8-12, a 12-ton roof crane four-point hoisting carrying pole beam 5 is adopted, one side of the carrying pole beam 5 is close to a mast 2 antenna, one end of the carrying pole beam 5 is inserted into the mast 2 antenna, the other end of the carrying pole beam is assisted by a sliding rope, the carrying pole beam 5 is slowly swung upright and then is assisted by the sliding rope to be stable, the whole carrying pole beam 5 is translated towards the other side, after the carrying pole beam 5 is in place, a hoisting point of an operating platform 4 is located at the center of the mast 2 antenna, each end of the carrying pole beam 5 is connected with the operating platform 4 through four steel wire ropes, and after a temporary connecting chain block is removed, the carrying pole beam is ready to be hoisted.
Specifically, the carrying pole beam 5 comprises two mutually parallel main beams 51, an inclined strut 52 and a horizontal strut 53 which are connected with the two main beams 51, a U-shaped space 54 with an outward opening is formed between each of two ends of the main beam 51 and the outermost horizontal strut 53, the U-shaped space 54 is used for sleeving the carrying pole beam 5 on the mast 2 antenna, and an anti-clamping assembly 55 is installed on the inner side of the end part of the main beam 51 and used for preventing the carrying pole beam 5 from being clamped with the mast 2 antenna.
The main beam 51 is made of 18- # I-steel, stiffening plates are welded between flange plates of the I-steel to resist weak axis bending moment and torque generated by inclined lifting ropes, the stability of the main beam 51 is guaranteed, and connecting lug plates used for connecting steel wire ropes are welded on the main beam 51.
The inclined struts 52 and the horizontal struts 53 are alternately arranged, and the adjacent inclined struts 52 are connected to the same end of the horizontal strut 53, so that the stability of the whole shoulder pole beam 5 is ensured; specifically, the inclined strut 52 and the horizontal strut 53 are made of 14A channel steel.
The anti-blocking component 55 is arranged at a position where the end part of the shoulder pole beam 5 is easy to block, the anti-blocking component 55 comprises U-shaped sections and arc sections, the U-shaped sections are fixedly arranged on the upper side and the lower side of the main beam 51 respectively, the arc sections protrude from one side, away from the main beam 51, of the main beam 51, and two ends of each arc section are connected with one end, away from the main beam 51, of each U-shaped section respectively; specifically, the arc section and the U-shaped section are integrally formed by bending round steel.
Furthermore, a reinforcing diagonal rod 56 is fixedly arranged between the horizontal support 53 positioned at the outermost side and the main beam 51, so that the stability of the beam body is improved.
And 4, step 4: referring to fig. 13, the roof crane is slowly hooked, the two operation platforms 4 are synchronously lifted along the mast 2 antenna by lifting the carrying pole beam 5, the four universal wheels 44 on the inner sides of the operation platforms 4 can prevent the operation platforms 4 from being clamped with the mast 2 in the lifting process, and the moving direction of the operation platforms 4 is controlled by two sliding ropes at the bottoms of the operation platforms 4.
And 5: after the operation platform 4 is lifted to be in place, a person enters the operation platform 4, a safety belt is hung at the crawling ladder of the mast 2, a safety steel wire rope is sleeved on the mast 2, the safety steel wire rope is connected through a shackle, the safety steel wire rope is fixedly connected with the crawling ladder of the mast 2 through a snap ring, four locksets for fixing the chain blocks are installed on the safety steel wire rope, one ends of the four chain blocks are connected with the locksets, the other ends of the four chain blocks are connected with lifting lugs on the bottom surface of the operation platform 4, the operation platform 4 is temporarily stabilized, the support frame 41 is fixedly welded with the mast 2 through a horizontal support 6 and an inclined support 7, and the bottom surface of the operation platform 4 is sealed through a steel plate net.
The adaptive carrying pole beam 5 is arranged, so that the positions of the lifting points and the lifting appliance of the operating platforms 4 are changed, the masts 2 are avoided, the two operating platforms 4 can be lifted at one time, the operation is convenient, and the lifting efficiency is high; in addition, by arranging the universal wheels 44 on the operation platform 4, the operation platform 4 can be prevented from being jammed with the mast 2 antenna during the lifting process.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A method for lifting a high-altitude operation platform by adopting a carrying pole beam is characterized by comprising the following steps:
step 1: a support (3) for an operation platform (4) is arranged at the lower part of the mast (2);
step 2: the operation platform (4) is divided into two parts to be installed, one part is hoisted to the support (3) and then temporarily fixed, then the other part of the operation platform (4) is hoisted, and the two parts of the operation platform (4) are integrally assembled after the operation platform is completed;
and step 3: hoisting a carrying pole beam (5), respectively inserting two masts (2) into two ends of the carrying pole beam (5), respectively connecting each end of the carrying pole beam (5) with an operation platform (4) through four steel wire ropes, releasing the temporary fixation of the operation platform (4) and preparing for lifting;
and 4, step 4: synchronously lifting the two operating platforms (4) along the mast (2) antenna by lifting the carrying pole beam (5);
and 5: after the operation platform (4) is lifted to be in place, personnel enter the operation platform (4), a safe steel wire rope is sleeved on the mast (2), the safe steel wire rope is connected through shackles, the safe steel wire rope is connected with the mast ladder (2) through a clamping ring, four locks for fixing the chain blocks are installed on the safe steel wire rope, one ends of the four chain blocks are connected with the locks, the other ends of the four chain blocks are connected with lifting lugs on the bottom surface of the operation platform (4), the operation platform (4) is temporarily stabilized, the operation platform (4) is fixedly welded with the mast (2) through a horizontal support (6) and an inclined support (7), and the bottom surface of the operation platform (4) is sealed through a steel plate net.
2. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: four brackets (3) are arranged on each mast (2), the four brackets (3) are divided into two groups and symmetrically arranged on two opposite sides of the mast (2), and the brackets (3) of each group are connected by angle steel (31); the bracket (3) comprises a horizontal rod piece (32) and an inclined rod piece (33) which are connected with each other at one end.
3. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: the temporary fixing in the step 2 is concrete, a safety steel wire rope is encircled on the mast (2) and is connected through a shackle, the safety steel wire rope is fixed on the mast (2) ladder stand through the shackle, four locksets for fixing the chain blocks are installed on the safety steel wire rope, one end of each chain block is connected with the corresponding lockset, the other end of each chain block is connected with the corresponding operation platform (4), and the operation platforms (4) are temporarily fixed.
4. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: the operation platform (4) comprises a bottom support frame (41), guard rails (42) welded on three sides of the support frame (41) and a steel plate net paved on the support frame (41), and a channel (43) for the mast (2) to pass through is formed in the middle of the two half operation platforms (4) after being assembled.
5. The method of claim 4 for lifting an aerial work platform using a spreader beam, wherein the method comprises: four corners of the operating platform (4) are positioned in the channel (43) and are internally provided with universal wheels (44).
6. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: in the step 4, when the operation platforms (4) are lifted, two sliding ropes are hung on each operation platform (4), and the moving direction and the shaking amplitude of the operation platforms (4) are controlled by personnel through the sliding ropes in the process of lifting the operation platforms (4).
7. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: in the step 3, when the shoulder pole beam (5) is hoisted, one side of the shoulder pole beam (5) is close to the mast (2) antenna, one end of the shoulder pole beam is inserted into the mast (2) antenna, the other end of the shoulder pole beam is assisted by a sliding rope and is slowly straightened, after the straightening, the sliding rope is used for assisting the shoulder pole beam (5) to be stable, the whole body is translated to the other side, and the shoulder pole beam (5) is in place.
8. The method of claim 1 for lifting an aerial work platform using a spreader beam, wherein the method comprises: carrying pole roof beam (5) include twice girder (51) that are parallel to each other, bracing (52) and horizontal brace (53) of connecting twice girder (51), the both ends of girder (51) are formed with opening U-shaped space (54) outwards respectively, anti-sticking subassembly (55) are installed to girder (51) tip inboard, anti-sticking subassembly (55) are including deviating from girder (51) one side convex circular arc section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427789.3A CN114809571B (en) | 2022-04-22 | 2022-04-22 | Method for lifting high-altitude operation platform by adopting shoulder pole beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427789.3A CN114809571B (en) | 2022-04-22 | 2022-04-22 | Method for lifting high-altitude operation platform by adopting shoulder pole beam |
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| Publication Number | Publication Date |
|---|---|
| CN114809571A true CN114809571A (en) | 2022-07-29 |
| CN114809571B CN114809571B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210427789.3A Active CN114809571B (en) | 2022-04-22 | 2022-04-22 | Method for lifting high-altitude operation platform by adopting shoulder pole beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080236944A1 (en) * | 2004-07-12 | 2008-10-02 | Bruno Patron | Platform Support Device For Lifting Loads Or Persons The Height Of A Structure |
| CN201376848Y (en) * | 2009-03-20 | 2010-01-06 | 史胜海 | Large-scale double-tower automatic-elevation hoisting equipment |
| CN102718152A (en) * | 2012-06-28 | 2012-10-10 | 中铁十三局集团第一工程有限公司 | Double-cableway cable crane erecting precast beam structure |
| CN202718376U (en) * | 2012-02-17 | 2013-02-06 | 中建三局建设工程股份有限公司 | Liftable ultrahigh space special-shaped truss construction operation platform |
| CN208167536U (en) * | 2017-10-16 | 2018-11-30 | 中交路桥建设有限公司 | A kind of operation platform removed for bridge temporary support |
| US20190010714A1 (en) * | 2016-01-15 | 2019-01-10 | Nisso Industries Co., Ltd. | Gondola apparatus |
| CN211470599U (en) * | 2019-11-20 | 2020-09-11 | 中国二十冶集团有限公司 | Auxiliary carrying pole beam for hoisting |
| CN113336108A (en) * | 2021-04-21 | 2021-09-03 | 中国化学工程第三建设有限公司 | Movable mast tool for dismantling high-altitude tower crane in cooling tower |
-
2022
- 2022-04-22 CN CN202210427789.3A patent/CN114809571B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080236944A1 (en) * | 2004-07-12 | 2008-10-02 | Bruno Patron | Platform Support Device For Lifting Loads Or Persons The Height Of A Structure |
| CN201376848Y (en) * | 2009-03-20 | 2010-01-06 | 史胜海 | Large-scale double-tower automatic-elevation hoisting equipment |
| CN202718376U (en) * | 2012-02-17 | 2013-02-06 | 中建三局建设工程股份有限公司 | Liftable ultrahigh space special-shaped truss construction operation platform |
| CN102718152A (en) * | 2012-06-28 | 2012-10-10 | 中铁十三局集团第一工程有限公司 | Double-cableway cable crane erecting precast beam structure |
| US20190010714A1 (en) * | 2016-01-15 | 2019-01-10 | Nisso Industries Co., Ltd. | Gondola apparatus |
| CN208167536U (en) * | 2017-10-16 | 2018-11-30 | 中交路桥建设有限公司 | A kind of operation platform removed for bridge temporary support |
| CN211470599U (en) * | 2019-11-20 | 2020-09-11 | 中国二十冶集团有限公司 | Auxiliary carrying pole beam for hoisting |
| CN113336108A (en) * | 2021-04-21 | 2021-09-03 | 中国化学工程第三建设有限公司 | Movable mast tool for dismantling high-altitude tower crane in cooling tower |
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| CN114809571B (en) | 2023-09-19 |
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