CN109372274B - High-altitude net rack installation system and construction method thereof - Google Patents
High-altitude net rack installation system and construction method thereof Download PDFInfo
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- CN109372274B CN109372274B CN201811542887.1A CN201811542887A CN109372274B CN 109372274 B CN109372274 B CN 109372274B CN 201811542887 A CN201811542887 A CN 201811542887A CN 109372274 B CN109372274 B CN 109372274B
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- 238000009434 installation Methods 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000011112 process operation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
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- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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Abstract
The application discloses a high-altitude net rack installation system which comprises a sliding device for conveying a high-altitude net rack to be installed to an unloading site and a synchronous unloading device for unloading the high-altitude net rack from the unloading site to the installation site, wherein the sliding device comprises a sliding rail, an electric hoist and ice shoes, the sliding rail is arranged on a wall connecting column on the inner side of an outer wall of a structure, the ice shoes are arranged in the sliding rail and can slide along the sliding rail, and the electric hoist is connected with the high-altitude net rack through a steel wire rope and pulls the high-altitude net rack to slide in the sliding rail. The synchronous unloading device comprises a long screw, a supporting frame and a rotating device, wherein the long screw is welded on the high-altitude net rack, the supporting frame is erected on the outer wall of the structure, and the rotating device is arranged on the supporting frame and is in threaded connection with the long screw. The system has the advantages of simple structure, simple process operation, high installation efficiency and good economy, is not limited by construction sites, and is particularly suitable for the integral unloading of the medium-sized and small-sized net racks.
Description
Technical Field
The application relates to the technical field of high-altitude net rack installation, in particular to a high-altitude net rack installation system and a construction method thereof.
Background
The high-altitude net frame is a space bar system structure formed by a plurality of bar members through nodes according to a certain rule. In the installation process of the high-altitude net rack, the installation quality is strictly controlled, and accidents are strictly prevented.
At present, the high-altitude net rack is installed by erecting a full scaffold below a construction area, forming a working platform through the scaffold, and installing by constructors on the working platform. However, the construction of the full scaffold requires a long construction period, and the construction cost is high due to more steel pipe materials. The other is to assemble the high-altitude net rack on the ground, and then hoist the whole high-altitude net rack to the installation position horizontally or vertically by using hoisting equipment. The construction difficulty of this mode is big, and construction site and rack hoist and mount unit's weight are restricted moreover. In addition, because the high-altitude net rack is arranged in the middle of the underground garage structure, large-scale machinery cannot be used for installation.
Disclosure of Invention
The application aims to provide a high-altitude net rack installation system and a construction method thereof, which are used for solving the problems that the construction period for erecting a full scaffold is long, more steel pipe materials are needed and the construction cost is high; the construction difficulty is high when the high-altitude net rack is integrally hoisted, and the weight of a construction site and the net rack hoisting unit is limited; the high-altitude net rack is in the middle of the underground garage structure, and the technical problem that large machinery cannot be used for installation is solved.
In order to solve the technical problems, the application provides a high-altitude net rack installation system, which comprises a sliding device for conveying a high-altitude net rack to be installed to an unloading site and a synchronous unloading device for unloading the high-altitude net rack from the unloading site to an installation position;
the sliding device comprises a sliding rail, an electric hoist and ice shoes, wherein the sliding rail is arranged on a wall connecting column at the inner side of the outer wall of the structure, the ice shoes are arranged in the sliding rail and can slide along the sliding rail, and the electric hoist is connected with the high-altitude net rack through a steel wire rope and pulls the high-altitude net rack to slide in the sliding rail;
the synchronous unloading device comprises a long screw, a supporting frame and a rotating device, wherein the long screw is welded and connected to the high-altitude net rack, the supporting frame is erected on the outer wall of the structure, and the rotating device is arranged on the supporting frame and is in threaded connection with the long screw.
Preferably, the rotating device includes:
the unloading nut is in threaded connection with the outside of the long screw;
the unloading base plate is provided with a connecting hole, and the unloading nut is clamped in the connecting hole and is fixedly connected with the unloading base plate;
and the rotating handle is connected to the unloading base plate, and when the rotating handle rotates, the long screw rod moves up and down relative to the unloading nut so as to drive the high-altitude net rack to move up and down.
Preferably, an additional pad is also provided between the unloading pad and the support frame.
Preferably, an additional bolt is screwed on the long screw above the unloading nut.
Preferably, the ice shoe includes:
the ice boot body comprises two parallel baffles;
the number of the rollers is at least two, roller center shafts are arranged along the center axes of the rollers, the rollers are transversely arranged between the two baffles through the roller center shafts, and the bottoms of the rollers exceed the bottoms of the baffles;
the locating buckle is arranged on the upper surfaces of the two baffles, and a clamping groove is formed between the locating buckle and the baffles.
Preferably, the positioning buckle comprises a vertical plate and a horizontal plate, and clamping grooves are formed among the horizontal plate, the vertical plate and the baffle plate.
Preferably, a positioning plate is arranged between the bottoms of the baffles.
Preferably, an additional stiffening plate is arranged between the two ends of the baffle.
In addition, the application also provides a construction method of the high-altitude net rack installation system, which comprises the following steps:
firstly, manufacturing ice boots, and deeply designing the placement positions and unloading sites of the ice boots;
secondly, a plurality of ice boots are placed in the sliding rail at intervals, and a net rack support of the high-altitude net rack is clamped in the ice boots;
step three, connecting the tail end of a steel wire rope on the electric hoist with a net rack support of the high-altitude net rack, and dragging the high-altitude net rack to slide to an unloading site by the electric hoist;
erecting a support frame on the outer wall of the structure at the unloading site;
welding the bottom end of the long screw rod on a bolt ball of the high-altitude net rack;
step six, placing the rotating device on a supporting frame and connecting the rotating device with a long screw rod in a threaded manner;
step seven, simultaneously rotating the rotating devices at all unloading sites in the forward direction, and enabling the long screw rods to move upwards, so that the whole high-altitude net rack is gradually lifted;
and step eight, collecting ice boots and sliding rails, reversely rotating devices at all unloading sites, enabling long screws to move downwards, gradually descending the whole high-altitude net rack, and splicing the high-altitude net rack and embedded parts at net rack supports of the existing high-altitude net rack together to form a whole.
Preferably, in the step eight, the unloading amount of the long screw is controlled to be 1-2 screw thread heights each time, so that synchronous unloading is ensured.
Compared with the prior art, the application has the characteristics and beneficial effects that:
(1) The high-altitude net rack to be assembled is clamped in the ice boots, the high-altitude net rack is pulled to the unloading sites by the electric hoist, then the unloading device is manufactured, a plurality of unloading sites of the net rack are lifted simultaneously by rotating the rotating device simultaneously, then the net rack falls down, and finally the installation of the high-altitude net rack is realized. The whole construction process is simple to operate, the installation efficiency is high, and the installation of the common high-altitude net rack unit can be completed by fewer people. And the scaffold is not required to be erected, and a large crane is not required to be used.
(2) The ice boot has the advantages of simple structure, easy manufacture and repeated use, can move a large-sized high-altitude net rack by using a small amount of boots, and is particularly prominent in places with narrow construction sites. The ice boots are light and convenient and are convenient to move.
(3) The synchronous unloading device realizes synchronous unloading of a plurality of unloading sites by controlling the unloading capacity of the long screw rod each time, and slowly and stably lifts or descends the high-altitude net rack to a designated position. The synchronous unloading device has simple structure, can be manufactured by adopting site scraps, can be repeatedly used, and is cheaper than a large-area computer-controlled synchronous hydraulic jack by more than 50%. And the synchronous unloading device is not limited by a construction site.
Drawings
Fig. 1 is a schematic view of a construction state of a sliding device.
Fig. 2 is a schematic view of a front view of an ice boot.
Fig. 3 is a schematic top view of an ice shoe.
Fig. 4 is a schematic side view of an ice shoe.
Fig. 5 is a schematic view of the construction state of the synchronous unloading device.
Fig. 6 is a schematic elevation view of a synchronous unloading device.
Fig. 7 is a schematic plan view of a synchronous unloading device.
Fig. 8 is a schematic diagram of the arrangement of the glide means.
Fig. 9 is a schematic layout of a synchronous unloader.
Reference numerals: 1-sliding device, 11-sliding rail, 12-electric hoist, 13-ice boot, 131-ice boot body, 1311-baffle, 1312-locating plate, 1313-additional stiffening plate, 132-roller, 133-locating buckle, 1331-riser, 1332-horizontal plate, 134-roller center shaft, 135-clamping groove, 14-wire rope, 2-synchronous unloading device, 21-long screw, 22-supporting frame, 23-rotating device, 231-unloading nut, 232-unloading backing plate, 233-rotating handle, 24-additional backing plate, 25-additional bolt, 3-high-altitude net rack, 31-net rack support, 32-bolt ball, 4-structure outer wall, 5-unloading site and 6-wall connecting column.
Detailed Description
The present application will be further described below in order to make the technical means, innovative features, achieved objects and effects achieved by the present application easy to understand.
The examples described herein are specific embodiments of the present application, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the application to the embodiments and scope of the application. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification, including those adopting any obvious substitutions and modifications to the embodiments described herein.
As shown in fig. 1 to 9, a high-altitude net rack installation system includes a sliding device (1) for conveying a high-altitude net rack (3) to be installed to an unloading site (5), and a synchronous unloading device (2) for unloading the high-altitude net rack (3) from the unloading site (5) to an installation site.
The sliding device (1) comprises a sliding rail (11), an electric hoist (12) and ice shoes (13), wherein the sliding rail (11) is arranged on a wall connecting column (6) on the inner side of the outer wall (4) of the structure, the ice shoes (13) are arranged in the sliding rail (11) and can slide along the sliding rail (11), and the electric hoist (12) is connected with the high-altitude net rack (3) through a steel wire rope (14) and pulls the high-altitude net rack (3) to slide in the sliding rail (11).
The ice boot (13) comprises an ice boot body (131), rollers (132) and a positioning buckle (133), wherein the ice boot body (131) comprises two parallel baffle plates (1311), a positioning plate (1312) is arranged between the bottoms of the two baffle plates (1311), and an additional stiffening plate (1313) is arranged between the two ends of the two baffle plates (1311). The number of the rollers (132) is at least two, the rollers (132) are provided with roller center shafts (134) along the center axis, the rollers (132) are transversely arranged between the two baffles (1311) through the roller center shafts (134), and the two ends of the roller center shafts (134) are fixed by bolts. The bottom of the roller (132) extends beyond the bottom of the baffle (1311). The positioning buckle (133) is used for adjusting the sliding direction and preventing the high-altitude net rack (3) from sliding out of the sliding rail (11). The positioning buckle (133) comprises a vertical plate (1331) and a horizontal plate (1332), and a clamping groove (135) is formed among the horizontal plate (1332), the vertical plate (1331) and the baffle plate (1311). The ice boot body (131) is made of a steel plate Q235B, and the thickness of the steel plate is 20mm. The roller (132) is a rotating pin, the material is 40Cr, and the specification is 100mm. The roller center shaft (134) is a steel casting.
The synchronous unloading device (2) comprises a long screw (21), a supporting frame (22), a rotating device (23), an additional backing plate (24) and an additional bolt (25), wherein the long screw (21) is welded on the high-altitude net rack (3), the supporting frame (22) is erected on the outer structural wall (4), and the rotating device (23) is arranged on the supporting frame (22) and is in threaded connection with the long screw (21). An additional pad (24) is arranged between the unloading pad (232) and the supporting frame (22) and is used for reinforcing and fixing the unloading pad (232). An additional bolt (25) is connected on the long screw rod (21) above the unloading nut (231) in a threaded manner and is used for reinforcing and fixing the unloading nut (231). The long screw (21) is a high-strength long bolt, the material is 45 # steel, and the specification is 35mm. The support frame (22) can be selected according to engineering characteristics, generally adopts H-shaped steel, and the material Q235B.
The rotating device (23) comprises an unloading nut (231), an unloading base plate (232) and a rotating handle (233), and the unloading nut (231) is in threaded connection with the outside of the long screw (21). The unloading backing plate (232) is provided with a connecting hole, and the unloading nut (231) is clamped in the connecting hole and is fixedly connected with the unloading backing plate (232). The rotating handle (233) is connected to the unloading base plate (232), and when the rotating handle (233) rotates, the long screw rod (21) moves up and down relative to the unloading nut (231) so as to drive the high-altitude net rack (3) to move up and down. The rotating handle (233) is a galvanized round steel pipe, the material is Q345B, and the specification is 35mm. The unloading backing plate (232) and the additional backing plate (24) are steel plates, and the material is Q235B.
The construction method of the high-altitude net rack installation system comprises the following steps:
step one, manufacturing the ice boot (13), and deeply designing the placement position of the ice boot (13) and the unloading site (5). The manufacturing method of the ice boot (13) comprises the following steps: the ice boot body (131) and the positioning buckle (133) are manufactured according to a design drawing, the roller (132) is clamped between the two baffles (1311), the roller center shaft (134) passes through a hole formed in the baffle (1311) and the roller (132), and then the roller is fixed by bolts.
Step two, placing the sliding rail (11) on the wall connecting column (6) or on an independent steel column support, brushing lubricant such as butter in the sliding rail (11), placing a plurality of ice shoes (13) in the sliding rail (11) at intervals, and clamping a net rack support (31) of the high-altitude net rack (3) in a clamping groove (135) of the ice shoes (13), so that the high-altitude net rack (3) is fixed in the ice shoes (13).
And thirdly, connecting the tail end of a steel wire rope (14) on the electric hoist (12) with a net rack support (31) of the high-altitude net rack (3), and dragging the high-altitude net rack (3) to slide to an unloading site (5) in the sliding rail (11) by the electric hoist (12).
And fourthly, erecting a supporting frame (22) on the outer wall (4) of the structure at the unloading site (5).
And fifthly, welding the bottom end of the long screw rod (21) on a bolt ball (32) of the high-altitude net rack (3).
Step six, selecting an unloading nut (231) matched with the long screw rod (21), arranging a connecting hole on an unloading backing plate (232), clamping the unloading nut (231) in the connecting hole and welding and fixing, and then welding a rotating handle (233) on the unloading backing plate (232) to finish manufacturing the rotating device (23). The turning device (23) is then placed on the support (22) and screwed to the long screw (21).
And step seven, simultaneously rotating the rotating device (23) at each unloading site (5) in the forward direction, and enabling the long screw (21) to move upwards, so that the whole high-altitude net rack (3) is gradually lifted. The unloading capacity of the long screw (21) is controlled to be 1-2 screw thread heights, namely 1-3 mm, so that synchronous unloading is ensured.
And step eight, collecting ice boots (13) and sliding rails (11), reversely rotating devices (23) at each unloading site (5), downwards moving long screws (21), gradually descending the whole high-altitude net rack (3), and splicing the high-altitude net rack (3) and embedded parts at net rack supports (31) of the existing high-altitude net rack (3) together to form a whole. The unloading capacity of the long screw (21) is controlled to be 1-2 screw thread heights, namely 1-3 mm, so that synchronous unloading is ensured.
The high-altitude net rack installation system can be used for installing a spherical net rack with the length of 67.2m and the width of 42 m. The group of high-altitude net racks (3) is provided with 26 unloading sites (5), so that the balance among a plurality of devices can be accurately controlled, the single unloading capacity of the long screw (21) is controlled, and the synchronous unloading of a plurality of unloading sites is realized.
The above examples are only illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements made by those skilled in the art to the technical solution of the present application should fall within the scope of protection defined by the claims of the present application without departing from the spirit of the design of the present application.
Claims (8)
1. A construction method of a high-altitude net rack installation system, characterized in that the high-altitude net rack installation system comprises a sliding device (1) for conveying a high-altitude net rack (3) to be installed to an unloading site (5), and a synchronous unloading device (2) for unloading the high-altitude net rack (3) from the unloading site (5) to an installation position;
the sliding device (1) comprises a sliding rail (11), an electric hoist (12) and ice shoes (13), wherein the sliding rail (11) is arranged on a wall connecting column (6) at the inner side of a structural outer wall (4) or on an independent steel column support, the ice shoes (13) are arranged in the sliding rail (11) and can slide along the sliding rail (11), and the electric hoist (12) is connected with a high-altitude net rack (3) through a steel wire rope (14) and pulls the high-altitude net rack (3) to slide in the sliding rail (11);
the synchronous unloading device (2) comprises a long screw (21), a supporting frame (22) and a rotating device (23), wherein the bottom end of the long screw (21) is welded and connected to the high-altitude net rack (3), the supporting frame (22) is erected on the outer wall (4) of the structure, the rotating device (23) is arranged on the supporting frame (22) and is in threaded connection with the long screw (21), and the rotating device (23) drives the long screw (21) to move up and down when rotating, so as to drive the high-altitude net rack (3) to move up and down;
the rotation device (23) comprises:
an unloading nut (231) which is in threaded connection with the outside of the long screw rod (21);
the unloading base plate (232) is provided with a connecting hole, and the unloading nut (231) is clamped in the connecting hole and is fixedly connected with the unloading base plate (232);
the rotating handle (233) is connected to the unloading base plate (232), and when the rotating handle (233) rotates, the long screw rod (21) moves up and down relative to the unloading nut (231) so as to drive the high-altitude net rack (3) to move up and down;
the construction method comprises the following steps:
firstly, manufacturing ice boots (13), and deeply designing the placement positions and unloading sites (5) of the ice boots (13);
secondly, a plurality of ice shoes (13) are placed in the sliding rail (11) at intervals, and a net rack support (31) of the high-altitude net rack (3) is clamped in the ice shoes (13);
step three, connecting the tail end of a steel wire rope (14) on the electric hoist (12) with a net rack support (31) of the high-altitude net rack (3), and dragging the high-altitude net rack (3) to slide to an unloading site (5) by the electric hoist (12);
erecting a supporting frame (22) on a structural outer wall (4) at an unloading site (5);
welding the bottom end of the long screw rod (21) on a bolt ball (32) of the high-altitude net rack (3);
step six, placing a rotating device (23) on the supporting frame (22) and connecting the rotating device with the long screw (21) in a threaded manner;
step seven, simultaneously rotating the rotating device (23) at each unloading site (5) in the forward direction, and enabling the long screw (21) to move upwards, so that the whole high-altitude net rack (3) is gradually lifted;
and step eight, collecting ice boots (13) and sliding rails (11), reversely rotating devices (23) at each unloading site (5), downwards moving long screws (21), gradually descending the whole high-altitude net rack (3), and splicing the high-altitude net rack (3) and embedded parts at net rack supports (31) of the existing high-altitude net rack (3) together to form a whole.
2. The method of constructing a high-altitude net rack installation system according to claim 1, wherein: in the step eight, the unloading capacity of the long screw (21) is controlled to be 1-2 screw thread heights each time, so that synchronous unloading is ensured.
3. The method of constructing a high-altitude net rack installation system according to claim 1, wherein: an additional backing plate (24) is also provided between the unloading backing plate (232) and the support frame (22).
4. The method of constructing a high-altitude net rack installation system according to claim 1, wherein: an additional bolt (25) is connected to the long screw (21) above the unloading nut (231) in a threaded manner.
5. The method of constructing a high-altitude net rack installation system according to claim 1, wherein: the ice boot (13) comprises:
the ice boot body (131) comprises two parallel baffles (1311);
the number of the rollers (132) is at least two, the rollers (132) are provided with roller center shafts (134) along the center axis, the rollers (132) are transversely arranged between two baffle plates (1311) through the roller center shafts (134), and the bottoms of the rollers (132) exceed the bottoms of the baffle plates (1311);
the positioning buckles (133) are arranged on the upper surfaces of the two baffles (1311), and clamping grooves (135) are formed between the positioning buckles (133) and the baffles (1311).
6. The method of constructing a high-altitude net rack installation system as claimed in claim 5, wherein: the positioning buckle (133) comprises a vertical plate (1331) and a horizontal plate (1332), and a clamping groove (135) is formed among the horizontal plate (1332), the vertical plate (1331) and the baffle plate (1311).
7. The method of constructing a high-altitude net rack installation system as claimed in claim 5, wherein: a positioning plate (1312) is arranged between the bottoms of the baffle plates (1311).
8. The method of constructing a high-altitude net rack installation system as claimed in claim 7, wherein: an additional stiffening plate (1313) is arranged between two ends of the baffle plate (1311).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811542887.1A CN109372274B (en) | 2018-12-17 | 2018-12-17 | High-altitude net rack installation system and construction method thereof |
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| CN201811542887.1A CN109372274B (en) | 2018-12-17 | 2018-12-17 | High-altitude net rack installation system and construction method thereof |
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| CN109372274B true CN109372274B (en) | 2023-12-01 |
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| CN110230391B (en) * | 2019-06-13 | 2021-09-10 | 天津九为实业有限公司 | Scaffold for high-altitude construction |
| CN117513764B (en) * | 2024-01-08 | 2024-04-12 | 北京建工集团有限责任公司 | Sliding method with installation position lower than sliding rail |
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| JPH01268970A (en) * | 1988-04-19 | 1989-10-26 | ▲高▼森 茂 | Net hanger for construction field |
| CN201679238U (en) * | 2010-05-14 | 2010-12-22 | 深圳市建工集团股份有限公司 | Adjustable support for installation of steel structure |
| CN105587130A (en) * | 2014-11-14 | 2016-05-18 | 五冶集团上海有限公司 | Space latticed shell welding ball locating device and application method thereof |
| CN204238570U (en) * | 2014-11-27 | 2015-04-01 | 江西建工机械施工有限责任公司 | The spiral adjuster of absolute altitude of frame ball node is installed |
| CN104594642A (en) * | 2014-12-09 | 2015-05-06 | 中国化学工程第三建设有限公司 | Large-span net rack aloft pairing, installing and overall horizontal moving method |
| CN205894717U (en) * | 2016-08-12 | 2017-01-18 | 河北建工集团有限责任公司 | Space truss structure accumulation sliding system |
| CN107780661A (en) * | 2016-08-24 | 2018-03-09 | 中冶天工集团天津有限公司 | A kind of towed accumulation slippage Construction of The Grids devices and methods therefor in high-altitude |
| CN107023075A (en) * | 2017-05-03 | 2017-08-08 | 浙江中南建设集团钢结构有限公司 | A kind of interim control method of assembled steel truss installa-tion lateral stability |
| CN107663916A (en) * | 2017-09-27 | 2018-02-06 | 中铁三局集团建筑安装工程有限公司 | A kind of network frame house cap accumulation slippage mounting structure and construction method |
| CN208202580U (en) * | 2018-05-17 | 2018-12-07 | 中冶建工集团有限公司 | Latticed shell structure load shedding device |
| CN108590204A (en) * | 2018-06-11 | 2018-09-28 | 中建三局第二建设工程有限责任公司 | A kind of frame ball node locating fast adjuster and its installation and adjustment method |
| CN209211915U (en) * | 2018-12-17 | 2019-08-06 | 北京城建集团有限责任公司 | A kind of high-altitude wire frame installation system |
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