CN119244018A - Installation method of ALC panels for ultra-high-rise large venues - Google Patents
Installation method of ALC panels for ultra-high-rise large venues Download PDFInfo
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- CN119244018A CN119244018A CN202411482070.5A CN202411482070A CN119244018A CN 119244018 A CN119244018 A CN 119244018A CN 202411482070 A CN202411482070 A CN 202411482070A CN 119244018 A CN119244018 A CN 119244018A
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- lifting
- frame
- jacking
- alc plate
- lifting frame
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Classifications
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of building construction, in particular to an installation method suitable for an ALC (aluminum-cement-based) plate of an ultra-high lifting frame large-scale venue, which comprises the steps of designing and manufacturing an ALC plate installation trolley, wherein the ALC plate installation trolley comprises a bottom moving frame, an auxiliary balance supporting leg and a lifting system are arranged on the bottom moving frame, a lifting frame is arranged on the bottom moving frame in a sliding mode, lifting adjustment is realized through driving of the lifting system, a detachable lifting standard joint is arranged between the lifting system and the lifting frame to increase the height of the lifting frame, an operation platform and a lifting system are arranged on the lifting frame, and the ALC plate is installed by using the manufactured ALC plate installation trolley. Compared with the prior art, the invention has the beneficial effects that the lifting construction of the ALC plate can be rapidly completed by utilizing the ALC plate mounting trolley, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an installation method suitable for an ALC plate of a large-scale venue with an ultrahigh lifting frame.
Background
At present, the ALC board is gradually applied to the construction of large-scale venue infilled wall as an energy-saving material, mainly adopts the fixed mode in veneer both ends to guarantee the stability of ALC board when the ALC board is under construction, and the bonding between panel and the panel plays and connects into holistic effect with the wall simultaneously, finally plays the reinforcement effect to the stability of wall body.
According to the requirements of an atlas 10J113-1 and the research on the market of the current ALC plate, the maximum length of the current ALC plate is 6m, when the height of a filling wall area of a large-scale stadium with an ultrahigh lifting frame exceeds 6m, the ALC plate needs to be divided into an upper section and a lower section for installation, and plate belts or ring beams are arranged between the sections.
Disclosure of Invention
In order to solve the problems, the embodiment of the invention provides an installation method suitable for an ALC plate of an ultra-high lift large-scale venue.
The embodiment of the invention provides a method for installing an ALC plate suitable for an ultra-high lifting frame large-scale venue, which comprises the following steps:
s1, designing and manufacturing ALC plate mounting trolley
The ALC plate installation trolley comprises a bottom moving frame, wherein an auxiliary balance supporting leg and a lifting system are arranged on the bottom moving frame, a lifting frame is arranged on the bottom moving frame in a sliding manner, lifting adjustment is realized by driving of the lifting system, a detachable lifting standard joint is arranged between the lifting system and the lifting frame for increasing the height of the lifting frame, and an operation platform and a lifting system are arranged on the lifting frame;
S2, installing ALC plate
S2-1, conveying all parts of an ALC plate installation trolley to a floor position to be constructed, opening auxiliary balance supporting legs to be supported on the floor to increase stability, starting a jacking system to jack up a lifting frame, temporarily fixing the lifting frame and a bottom moving frame after the jacking system is lifted to a highest stroke position, resetting the jacking system, adding a jacking standard joint between the jacking system and the lifting frame, and fixing the jacking standard joint and the lifting frame;
S2-2, the jacking system jacks up the lifting frame through the jacking standard knot, after the jacking system is lifted to the highest stroke position, the jacking standard knot is temporarily fixed with the bottom movable frame, the jacking system is reset, the jacking standard knot is increased again between the jacking system and the temporarily fixed jacking standard knot, and the newly increased jacking standard knot is fixed with the temporarily fixed jacking standard knot;
s2-3, repeating the step S2-2 until the lifting frame is lifted to a set height, lifting the ALC plate to the construction height by using a lifting system, and pushing the ALC plate to a splicing position by the constructor to finish splicing construction;
S2-4, folding the auxiliary balance support legs, moving the ALC plate installation trolley to the next ALC plate construction position, opening the auxiliary balance support legs to prop up the building surface, hoisting the ALC plate to the construction height by using a hoisting system, and pushing the ALC plate to the splicing position by constructors to finish splicing construction;
S2-52, repeating the step S2-4 until the ALC plate construction is completed.
Compared with the prior art, the invention has the beneficial effects that the lifting construction of the ALC plate can be rapidly completed by utilizing the ALC plate mounting trolley, and the construction efficiency is improved.
Optionally, the bottom removes the frame and includes the rectangle bottom plate, and rectangle bottom plate bottom surface is provided with the walking wheel, and four bights of rectangle bottom plate have erect the guide post, and top position is provided with first pinhole in each guide post, and jacking system sets up on the rectangle bottom plate and is located each guide post inboard, thereby adjacent two in four guide posts reserve out the introduction space when selecting three sets of setting connecting rods for a set of steadiness.
Optionally, the lifting frame comprises a rectangular frame, four upright posts in the rectangular frame are matched with the guide posts, second pin holes opposite to the corresponding first pin holes are formed in the bottoms of the four upright posts, first sockets are formed in the inner sides of the four upright posts and located at the lower parts of the second pin holes, connecting holes are formed in the positions of the first sockets, and the operating platform and the hoisting system are arranged on one side of the rectangular frame.
Optionally, a counterweight is disposed on the rectangular frame opposite the operating platform.
Optionally, the jacking standard festival includes the rectangle connecting frame, and the bight of rectangle connecting frame is provided with the jacking stand, and the jacking stand top outside is provided with the second socket with first socket adaptation, has seted up the connecting hole in second socket position simultaneously, and jacking stand bottom is provided with second pinhole, first socket and connecting hole equally with stand bottom structure.
Optionally, after the jacking system is lifted to the highest travel position in S2-1, temporarily fixing the lifting frame and the bottom moving frame, resetting the jacking system, adding a jacking standard joint between the jacking system and the lifting frame, and fixing the jacking standard joint and the lifting frame, wherein the process of fixing the jacking standard joint and the lifting frame includes:
After the jacking system is lifted to the highest stroke position, a second pin hole at the bottom of the upright post in the lifting frame is aligned with a first pin hole in the guide post, and a fixing pin is inserted into the opposite first pin hole and second pin hole to finish temporary fixing of the lifting frame and the bottom moving frame;
The jacking system resets, the jacking standard section is put into by introducing the space position, and the second jack of the jacking upright column in the jacking standard section is in butt joint with the first jack at the bottom of the upright column in the lifting frame, and meanwhile bolts are penetrated into opposite connecting holes for fixing.
The hoisting system comprises a hoisting rod vertically arranged on the hoisting frame, an electric hoist is arranged at the top of the hoisting rod, and a mechanical gripper for clamping an ALC plate is arranged at the end part of a steel wire rope in the electric hoist.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of an ALC board-mounting trolley according to an embodiment of the present invention;
FIG. 2 is a schematic view of a bottom moving frame and lifting frame according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bottom moving frame part according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lifting standard joint according to an embodiment of the present invention;
Fig. 5 is a schematic diagram of a connection structure between jacking standard nodes according to an embodiment of the present invention.
1, A bottom moving frame; 2, auxiliary balance supporting legs, 3, a jacking system, 4, a lifting frame, 5, a jacking standard joint, 6, an operating platform, 7, a hoisting system, 8, an ALC plate, 9, a rectangular bottom plate, 10, travelling wheels, 11, a guide post, 12, a first pin hole, 13, a connecting rod, 14, a lead-in space, 15, a rectangular frame, 16, a stand column, 17, a second pin hole, 18, a first socket, 19, a connecting hole, 20, a counterweight, 21, a rectangular connecting frame, 22, a jacking stand column, 23, a second socket, 24, a fixed pin, 25, a bolt, 26, an operating platform sliding rail, 27, a lifting rod, 28, an electric hoist, 29 and a mechanical gripper.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. The exemplary embodiments of the present invention and the descriptions thereof are used herein to explain the present invention, but are not intended to limit the invention.
Referring to fig. 1 to fig. 4, an installation method for an ALC plate of an ultra-high lift large-scale venue provided by an embodiment of the present invention includes:
s1, designing and manufacturing ALC plate mounting trolley
The ALC plate installation trolley comprises a bottom moving frame 1, wherein an auxiliary balance supporting leg 2 and a lifting system 3 are arranged on the bottom moving frame 1, a lifting frame 4 is arranged on the bottom moving frame 1 in a sliding manner, lifting adjustment is realized by driving of the lifting system 3 through the lifting frame 4, meanwhile, a detachable lifting standard joint 5 is arranged between the lifting system 3 and the lifting frame 4 and used for increasing the height of the lifting frame 4, and an operation platform 6 and a lifting system 7 are arranged on the lifting frame 4;
S2, installing ALC plate
S2-1, conveying all parts of an ALC plate installation trolley to a floor position to be constructed, opening an auxiliary balance supporting leg 2 to be supported on the floor to increase stability, starting a jacking system 3 to jack a lifting frame 4, temporarily fixing the lifting frame 4 and a bottom movable frame 1 after the jacking system 3 is lifted to a highest stroke position, resetting the jacking system 3, adding a jacking standard section 5 between the jacking system 3 and the lifting frame 4, and fixing the jacking standard section 5 and the lifting frame 4;
S2-2, the lifting frame 4 is lifted by the lifting system 3 through the lifting standard section 5, after the lifting system 3 is lifted to the highest stroke position, the lifting standard section 5 is temporarily fixed with the bottom movable frame 1, the lifting system is reset, the lifting standard section 5 is increased again between the lifting system and the temporarily fixed lifting standard section 5, and the newly increased lifting standard section 5 is fixed with the temporarily fixed lifting standard section 5;
s2-3, repeating the step S2-2 until the lifting frame 4 is lifted to a set height, lifting the ALC plate 8 to the construction height by using the lifting system 7 by constructors, and pushing the ALC plate 8 to the splicing position by constructors to finish splicing construction;
s2-4, folding the auxiliary balance support legs 2, moving the ALC plate installation trolley to the next ALC plate construction position, opening the auxiliary balance support legs 2 to be supported on a floor, hoisting the ALC plate 8 to a construction height by using the hoisting system 7, and pushing the ALC plate 8 to a splicing position by constructors to finish splicing construction;
s2-52, repeating S2-4 until the construction of the ALC plate 8 is completed.
In implementation, the bottom moving frame 1 comprises a rectangular bottom plate 9, travelling wheels 10 are arranged on the bottom surface of the rectangular bottom plate 9, guide columns 11 are erected at four corners of the rectangular bottom plate 9, first pin holes 12 are formed in the top position of each guide column 11, the jacking system 3 is arranged on the rectangular bottom plate 9 and located on the inner side of each guide column 11, three groups of connecting rods 13 are selected from adjacent two of the four guide columns 11 for one group, so that stability is improved, an introduction space 14 is reserved at the same time, and the jacking system 3 adopts a jacking jack.
In practice, the auxiliary balance support leg 2 comprises a leg support fixed at the bottom of the guide post 11, a jack is vertically arranged downwards at the end part of the leg support, and a bearing plate is horizontally arranged at the end part of a piston rod of the jack.
In implementation, the lifting frame 4 comprises a rectangular frame 15, four upright posts 16 in the rectangular frame 15 are matched with the guide posts 11, second pin holes 17 opposite to corresponding first pin holes 12 are formed in the bottoms of the four upright posts 16, first insertion holes 18 are formed in the inner sides of the four upright posts 16 and located at the lower portions of the second pin holes 17, connecting holes 19 are formed in the positions of the first insertion holes 18, and the operating platform 6 and the lifting system 7 are arranged on one side of the rectangular frame 15.
In practice, the rectangular frame 15 is provided with a counterweight 20 on the opposite side of the operating platform 6.
In implementation, the jacking standard section 5 comprises a rectangular connecting frame 21, a jacking upright post 22 is arranged at the corner of the rectangular connecting frame 21, a second jack 23 matched with the first jack 18 is arranged on the outer side of the top of the jacking upright post 22, meanwhile, a connecting hole 19 is formed in the position of the second jack 23, and a second pin hole 17, a first jack 18 and the connecting hole 19 are formed in the bottom of the jacking upright post 22 in the same structure as the bottom of the upright post 16.
In implementation, after the lifting system 3 is lifted to the highest travel position in S2-1, the lifting frame 4 and the bottom moving frame 1 are temporarily fixed, the lifting system 3 is reset, a lifting standard section 5 is added between the lifting system 3 and the lifting frame 4, and the process of fixing the lifting standard section 5 and the lifting frame 4 includes:
After the jacking system 3 is lifted to the highest stroke position, the second pin holes 17 at the bottom of the upright posts 16 in the lifting frame 4 are aligned with the first pin holes 12 in the guide posts 11, and fixing pins 24 are inserted into the opposite first pin holes 12 and second pin holes 17 to finish temporary fixing of the lifting frame 4 and the bottom moving frame 1;
The jacking system 3 is reset, the jacking standard joint 5 is placed in the position of the introducing space 14, the second insertion opening 23 of the jacking upright post 22 in the jacking standard joint 5 is in butt joint with the first insertion opening 18 at the bottom of the upright post 16 in the lifting frame 4, and meanwhile bolts 25 are penetrated into opposite connecting holes 19 for fixing.
In implementation, the splicing and fixing between the jacking standard section 5 and the jacking standard section 5 is the same as the principle of the splicing and fixing process between the jacking standard section 5 and the lifting frame 4, and will not be described again here.
In implementation, the operation platform 6 is arranged on the lifting frame 4 in a sliding manner through the vertically arranged operation platform sliding rails 26, further adjustment of the height of the operation platform 6 is achieved, construction of constructors is facilitated, the lifting system 7 comprises a lifting rod 27 vertically arranged on the lifting frame 4, an electric hoist 28 is arranged at the top of the lifting rod 27, a mechanical gripper 29 used for clamping the ALC plate 8 is arranged at the end of a steel wire rope in the electric hoist 28, the ALC plate 8 is clamped by the mechanical gripper 29 in use, and then the ALC plate 8 is lifted to a construction height by the electric hoist 28.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (7)
1. The method for installing the ALC plate suitable for the ultra-high lift large-scale venue is characterized by comprising the following steps of:
s1, designing and manufacturing ALC plate mounting trolley
The ALC plate installation trolley comprises a bottom moving frame, wherein an auxiliary balance supporting leg and a lifting system are arranged on the bottom moving frame, a lifting frame is arranged on the bottom moving frame in a sliding manner, lifting adjustment is realized by driving of the lifting system, a detachable lifting standard joint is arranged between the lifting system and the lifting frame for increasing the height of the lifting frame, and an operation platform and a lifting system are arranged on the lifting frame;
S2, installing ALC plate
S2-1, conveying all parts of an ALC plate installation trolley to a floor position to be constructed, opening auxiliary balance supporting legs to be supported on the floor to increase stability, starting a jacking system to jack up a lifting frame, temporarily fixing the lifting frame and a bottom moving frame after the jacking system is lifted to a highest stroke position, resetting the jacking system, adding a jacking standard joint between the jacking system and the lifting frame, and fixing the jacking standard joint and the lifting frame;
S2-2, the jacking system jacks up the lifting frame through the jacking standard knot, after the jacking system is lifted to the highest stroke position, the jacking standard knot is temporarily fixed with the bottom movable frame, the jacking system is reset, the jacking standard knot is increased again between the jacking system and the temporarily fixed jacking standard knot, and the newly increased jacking standard knot is fixed with the temporarily fixed jacking standard knot;
s2-3, repeating the step S2-2 until the lifting frame is lifted to a set height, lifting the ALC plate to the construction height by using a lifting system, and pushing the ALC plate to a splicing position by the constructor to finish splicing construction;
S2-4, folding the auxiliary balance support legs, moving the ALC plate installation trolley to the next ALC plate construction position, opening the auxiliary balance support legs to prop up the building surface, hoisting the ALC plate to the construction height by using a hoisting system, and pushing the ALC plate to the splicing position by constructors to finish splicing construction;
S2-52, repeating the step S2-4 until the ALC plate construction is completed.
2. The method for installing the ALC plate suitable for the ultra-high lift frame large-scale venue as claimed in claim 1, wherein the bottom moving frame comprises a rectangular bottom plate, walking wheels are arranged on the bottom surface of the rectangular bottom plate, guide posts are erected at four corners of the rectangular bottom plate, first pin holes are arranged at the top positions of each guide post, the lifting system is arranged on the rectangular bottom plate and positioned on the inner side of each guide post, and adjacent two of the four guide posts are provided with connecting rods for selecting three groups for one group, so that the stability is improved, and meanwhile, an introduction space is reserved.
3. The method for installing the ALC plate suitable for the ultra-high lifting frame large-scale venue of claim 2, wherein the lifting frame comprises a rectangular frame, four upright posts in the rectangular frame are matched with the guide posts, second pin holes opposite to the corresponding first pin holes are formed in the bottoms of the four upright posts, first insertion holes are formed in the inner sides of the four upright posts and located at the lower parts of the second pin holes, connecting holes are formed in the positions of the first insertion holes, and the operating platform and the lifting system are arranged on one side of the rectangular frame.
4. The method for installing an ALC plate for a large-scale super-elevated venue of claim 3, wherein the rectangular frame is provided with a counterweight on the opposite side of the operation platform.
5. The method for installing the ALC plate suitable for the ultra-high lifting frame large-scale venue of claim 3, wherein the jacking standard section comprises a rectangular connecting frame, a jacking upright post is arranged at a corner of the rectangular connecting frame, a second socket matched with the first socket is arranged on the outer side of the top of the jacking upright post, meanwhile, a connecting hole is formed in the position of the second socket, and a second pin hole, a first socket and a connecting hole are formed in the bottom of the jacking upright post in the same structure as the bottom of the upright post.
6. The method for installing an ALC plate in a large-scale venue with an ultrahigh lifting frame according to claim 5, wherein after the lifting system is lifted to the highest travel position in S2-1, temporarily fixing the lifting frame with the bottom moving frame, resetting the lifting system, adding a lifting standard section between the lifting system and the lifting frame, and fixing the lifting standard section with the lifting frame comprises:
After the jacking system is lifted to the highest stroke position, a second pin hole at the bottom of the upright post in the lifting frame is aligned with a first pin hole in the guide post, and a fixing pin is inserted into the opposite first pin hole and second pin hole to finish temporary fixing of the lifting frame and the bottom moving frame;
The jacking system resets, the jacking standard section is put into by introducing the space position, and the second jack of the jacking upright column in the jacking standard section is in butt joint with the first jack at the bottom of the upright column in the lifting frame, and meanwhile bolts are penetrated into opposite connecting holes for fixing.
7. The method for installing the ALC plate suitable for the ultra-high lift frame large-scale venue of claim 3, wherein the operation platform is arranged on the lifting frame in a sliding manner through a vertically arranged operation platform sliding rail, the hoisting system comprises a lifting rod vertically arranged on the lifting frame, an electric hoist is arranged at the top of the lifting rod, and a mechanical gripper for clamping the ALC plate is arranged at the end part of a steel wire rope in the electric hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411482070.5A CN119244018A (en) | 2024-10-23 | 2024-10-23 | Installation method of ALC panels for ultra-high-rise large venues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411482070.5A CN119244018A (en) | 2024-10-23 | 2024-10-23 | Installation method of ALC panels for ultra-high-rise large venues |
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| Publication Number | Publication Date |
|---|---|
| CN119244018A true CN119244018A (en) | 2025-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411482070.5A Pending CN119244018A (en) | 2024-10-23 | 2024-10-23 | Installation method of ALC panels for ultra-high-rise large venues |
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| CN (1) | CN119244018A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691688A (en) * | 2020-06-16 | 2020-09-22 | 中国建筑股份有限公司 | Jacking supporting device for building construction and using method |
| CN212832684U (en) * | 2020-07-08 | 2021-03-30 | 山西四建集团有限公司 | Self-propelled combined lifting multifunctional aerial work platform truck |
| CN115405112A (en) * | 2022-09-19 | 2022-11-29 | 中建八局第三建设有限公司 | Hoisting device for high-rise ALC (automatic level control) plate installation and using method thereof |
| CN218231676U (en) * | 2022-06-23 | 2023-01-06 | 中铁广州工程局集团深圳工程有限公司 | Machine of supplementary installation ALC board |
| CN115818458A (en) * | 2022-11-22 | 2023-03-21 | 大连益利亚工程机械有限公司 | A standard section assembly and disassembly system and operating method |
| CN117401598A (en) * | 2023-11-24 | 2024-01-16 | 中建三局集团有限公司 | Super high-rise high ALC installation auxiliary device and construction method |
| CN220868857U (en) * | 2023-07-19 | 2024-04-30 | 杭州建工集团有限责任公司 | A detachable and accessible ALC wall panel hoisting integrated platform |
-
2024
- 2024-10-23 CN CN202411482070.5A patent/CN119244018A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691688A (en) * | 2020-06-16 | 2020-09-22 | 中国建筑股份有限公司 | Jacking supporting device for building construction and using method |
| CN212832684U (en) * | 2020-07-08 | 2021-03-30 | 山西四建集团有限公司 | Self-propelled combined lifting multifunctional aerial work platform truck |
| CN218231676U (en) * | 2022-06-23 | 2023-01-06 | 中铁广州工程局集团深圳工程有限公司 | Machine of supplementary installation ALC board |
| CN115405112A (en) * | 2022-09-19 | 2022-11-29 | 中建八局第三建设有限公司 | Hoisting device for high-rise ALC (automatic level control) plate installation and using method thereof |
| CN115818458A (en) * | 2022-11-22 | 2023-03-21 | 大连益利亚工程机械有限公司 | A standard section assembly and disassembly system and operating method |
| CN220868857U (en) * | 2023-07-19 | 2024-04-30 | 杭州建工集团有限责任公司 | A detachable and accessible ALC wall panel hoisting integrated platform |
| CN117401598A (en) * | 2023-11-24 | 2024-01-16 | 中建三局集团有限公司 | Super high-rise high ALC installation auxiliary device and construction method |
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