CN111719698A - Installation method of super-large-span steel net rack - Google Patents
Installation method of super-large-span steel net rack Download PDFInfo
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- CN111719698A CN111719698A CN202010648811.8A CN202010648811A CN111719698A CN 111719698 A CN111719698 A CN 111719698A CN 202010648811 A CN202010648811 A CN 202010648811A CN 111719698 A CN111719698 A CN 111719698A
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- net rack
- altitude
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- hoisting
- box body
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of constructional engineering installation, and particularly discloses an installation method of a super-large span steel net rack, which comprises the following steps: analyzing a steel structure to be installed, splitting an assembly drawing according to a node mode and a basic unit of a space truss structure building, and then determining an installation process and an installation mode; the installation method of the grid structure comprises an integral hoisting method and a high-altitude bulk method; the installation method of the grid structure mainly comprises an integral hoisting method, wherein the integral hoisting method comprises hoisting by a crane and hoisting by a pulling rod, and for the condition that a plurality of parts are arranged, a high-altitude bulk mounting method is adopted, a variant of the high-altitude bulk mounting method is a high-altitude block mounting method, and a high-altitude slippage method is adopted on the basis of the high-altitude block mounting method; the invention has the advantages of complete flow and convenient operation, and in addition, the invention also provides a matched movable scaffold which can very quickly and efficiently realize the installation of the ultra-large span steel net rack.
Description
Technical Field
The invention relates to the technical field of constructional engineering installation, in particular to an installation method of a super-large span steel net rack.
Background
The spatial grid structure is widely applied because the grid has the advantages of attractive appearance, wide space, strong spanning capability, reasonable manufacturing cost, lower cost and the like, so, for enterprises taking steel structures as technical cores, the installation of the large-span grid is a technology which must be mastered by each enterprise, in our country, common large-span grids are generally applied to buildings such as venues and the like, belong to public buildings, so the technical precision requirement on the installation of the grid structure is naturally very high, and the venues are generally used for carrying out sports competitions and sports exercises or holding activities such as concert performances.
The net rack venue can be generally divided into three categories of large center, and people in the venue can find that the top or the periphery of the venue is supported by a steel structure net rack, so that the application of a large-span net rack structure in the building engineering is increasingly wide along with the rapid development of the economy of China. The steel structure is a novel steel structure, is reasonable in stress, light in total amount, low in manufacturing cost, lively and novel in appearance, and has good stability and safety.
Disclosure of Invention
The invention aims to provide a method for mounting a super-large span steel net rack, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for installing an ultra-large span steel net rack comprises the following steps: analyzing a steel structure to be installed, splitting an assembly drawing according to a node mode and a basic unit of a space truss structure building, and then determining an installation process and an installation mode; the installation method of the grid structure comprises an integral hoisting method and a high-altitude bulk method;
the installation method of the grid structure is mainly based on an integral hoisting method, the integral hoisting method comprises hoisting by a crane and hoisting by a pulling rod, and for the condition that a plurality of parts are arranged, a high-altitude bulk mounting method is used, a variant of the high-altitude bulk mounting method is a high-altitude block mounting method, and on the basis of the high-altitude block mounting method, a high-altitude slip method is also used.
As a further scheme of the invention: if the construction conditions of the site are suitable for the requirements of the crane, the net rack can be spliced in the structural span or can be arranged outside the structural span; when the three cranes are matched for construction, if the grid structure of the building and the site construction condition allow another crane to be matched for aerial connection and hoisting, the grid can also be constructed outside the span; when multiple cranes are combined, the grid structure should be built within the span.
As a further scheme of the invention: when the large and medium-sized net racks are integrally hoisted by using a single or a plurality of pull rods, the net racks of the building are arranged in the structural span; when the net rack is integrally hoisted by using a single pull rod, trial hoisting is carried out, and before formal hoisting, long steel rulers are respectively hung at the four corners of the net rack, and the height difference of the four corners is controlled to be lower than 100mm by the steel rulers; when the net rack is lifted to cross the installation elevation of the column top by 0.5m, stopping lifting, adjusting the wind-catching pulley block to be matched with the sliding rope, transversely moving the net rack to the column top or the surrounding column, and reducing by 0.5m each time or 100mm each time to adjust the reduction difference; the deviation of each support when the net rack is in place is adjusted through a jack, and the upwarp phenomenon is adjusted through the pulling and pressing of the chain block.
As a further scheme of the invention: the high-altitude block mounting method is characterized in that small net racks are assembled on the ground, and during construction, the assembled small net racks are hoisted to a designed elevation to be in place by a small number of vertical bearing frames and then are connected with adjacent small net shells into a whole; the high-altitude slipping method is characterized in that a net frame assembled on the ground is slipped in place at high altitude and connected into a whole.
As a further scheme of the invention: a movable scaffold for assisting high-altitude operation is provided:
the movable scaffold comprises a first base, a box body is arranged above the first base, and a box cover is detachably connected above the box body; a motor frame is fixedly connected to one side of the box body, a motor is detachably connected to the upper side of the motor frame, a worm is detachably connected to an output shaft of the motor, a worm wheel is arranged above the worm, a gear is arranged in the box body, a connecting shaft is arranged between the gear and the worm wheel, and a central shaft is arranged on one side, away from the worm wheel, of the gear;
further, a workbench is arranged above the box body, a rack is arranged at the bottom of the workbench, the rack is meshed with the gear, guardrails are arranged on the periphery above the workbench, a tool box is arranged above the workbench, a controller is arranged above the tool box, and the controller controls the motor to be switched on and off.
As a further scheme of the invention: the worm is meshed with the motor, a bearing is arranged between the connecting shaft and the box body, and a bearing is arranged between the central shaft and the box body; and a hydraulic telescopic rod and universal wheels are fixedly connected below the first base.
Compared with the prior art, the invention has the beneficial effects that: the invention has complete flow and convenient operation, and also provides a matched mobile scaffold which can very quickly and efficiently realize the installation of the ultra-large span steel net rack.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a flow diagram of a method for mounting a super-span steel net rack.
Fig. 2 is a schematic structural view of the mobile scaffold of the present invention.
Fig. 3 is a side view of the worm and worm wheel of the moving handwheel.
In the figure: 1-a first base, 2-a box body, 3-a motor frame, 4-a motor, 5-a worm wheel, 6-a gear, 7-a bearing, 8-a rack, 9-a worm, 10-a box body, 11-a hydraulic telescopic rod, 12-a universal wheel, 13-a workbench, 14-a guardrail, 15-a tool box and 16-a controller.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1, in the embodiment of the present invention, a method for installing a super-large span steel grid includes analyzing a steel structure to be installed, splitting an assembly drawing according to a node mode and a basic unit of a grid structure building, and then determining an installation process and an installation mode; the installation method of the grid structure comprises an integral hoisting method and a high-altitude bulk method;
the installation method of the grid structure mainly comprises an integral hoisting method, wherein the integral hoisting method comprises hoisting by a crane and hoisting by a pulling rod, and if the construction conditions of a site are suitable for the requirements of the crane, the grid can be spliced in the structural span or can be arranged outside the structural span; when the three cranes are matched for construction, if the grid structure of the building and the site construction condition allow another crane to be matched for aerial connection and hoisting, the grid can also be constructed outside the span; when a plurality of cranes are matched, the net rack is constructed in a span;
when the large and medium-sized net racks are integrally hoisted by using a single or a plurality of pull rods, the net racks of the building are arranged in the structural span; when the net rack is integrally hoisted by using a single pull rod, trial hoisting is carried out, and before formal hoisting, long steel rulers are respectively hung at the four corners of the net rack, and the height difference of the four corners is controlled to be lower than 100mm by the steel rulers; when the net rack is lifted to cross the installation elevation of the column top by 0.5m, stopping lifting, adjusting the wind-catching pulley block to be matched with the sliding rope, transversely moving the net rack to the column top or the surrounding column, and reducing by 0.5m each time or 100mm each time to adjust the reduction difference; the deviation of each support when the net rack is in place is adjusted through a jack, and the upwarp phenomenon is adjusted through the pulling and pressing of the chain block;
for the condition that the number of parts is large, a high-altitude bulk loading method is used, and a variation of the high-altitude bulk loading method is a high-altitude block mounting method, wherein the high-altitude block mounting method is to assemble a small net rack on the ground, and the assembled small net rack is hoisted to a designed elevation to be in place by adopting a small number of vertical bearing frames during construction and then is connected with an adjacent small net shell into a whole; on the basis of the high-altitude block installation method, a high-altitude sliding method is also provided, wherein the high-altitude sliding method is used for sliding a net rack assembled on the ground in place at high altitude and connecting the net rack into a whole.
The working principle of the embodiment of the invention is as follows: the steel structure of the net rack has three joint modes of a welding ball joint, a bolt ball joint and a steel plate joint. The basic units of the space frame structure building are generally triangular pyramids, triangular prisms, square prisms, truncated quadrangular pyramids, etc., and planar shapes of triangular prisms, quadrangular prisms, hexagonal prisms, circular prisms, or any other shapes are constructed from these basic units.
Example 2
Referring to fig. 2-3, in an embodiment of the present invention, a mobile scaffold for assisting aerial work is provided, where the mobile scaffold includes a first base 1, a box body 2 is disposed above the first base 1, and a box cover 10 is detachably connected above the box body 2; a motor frame 3 is fixedly connected to one side of the box body 2, a motor 4 is detachably connected to the upper side of the motor frame 3, a worm 9 is detachably connected to an output shaft of the motor 4, a worm wheel 5 is arranged above the worm 9, a gear 6 is arranged in the box body 2, a connecting shaft is arranged between the gear 6 and the worm wheel 5, a central shaft is arranged on one side, away from the worm wheel 5, of the gear 6, the worm 9 is meshed with the motor 4, a bearing 7 is arranged between the connecting shaft and the box body 2, and a bearing 7 is arranged between the central shaft and the box body 2;
further, a workbench 13 is arranged above the box body 2, a rack 8 is arranged at the bottom of the workbench 13, the rack 8 is meshed with the gear 6, guardrails 14 are arranged on the periphery above the workbench 13, a tool box 15 is arranged above the workbench 13, a controller 16 is arranged above the tool box 15, and the controller 16 controls the on and off of the motor 4; the lower part of the first base 1 is fixedly connected with a hydraulic telescopic rod 11 and a universal wheel 12.
The working principle of the embodiment of the invention is as follows: the motor 4 drives the worm 9 to rotate, the worm 9 drives the worm wheel 5 to rotate, the worm wheel 5 drives the gear 6 to rotate, the gear 6 drives the rack 8 to move up and down, and the height of the workbench 13 can be adjusted by the up-and-down movement of the rack 8; the height of the hydraulic telescopic rod 11 can be adjusted, and in addition, when the hydraulic telescopic rod 11 is retracted, the length of the hydraulic telescopic rod 11 is too low, the universal wheels 12 bear the weight, and the device is changed into a movable type to facilitate transfer.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The method for installing the ultra-large span steel net rack is characterized by comprising the following steps of: analyzing a steel structure to be installed, splitting an assembly drawing according to a node mode and a basic unit of a space truss structure building, and then determining an installation process and an installation mode; the installation method of the grid structure comprises an integral hoisting method and a high-altitude bulk method;
the installation method of the grid structure is mainly based on an integral hoisting method, the integral hoisting method comprises hoisting by a crane and hoisting by a pulling rod, and for the condition that a plurality of parts are arranged, a high-altitude bulk mounting method is used, a variant of the high-altitude bulk mounting method is a high-altitude block mounting method, and on the basis of the high-altitude block mounting method, a high-altitude slip method is also used.
2. The installation method of the ultra-large span steel net rack according to claim 1, wherein if the construction conditions of the site are suitable for the requirements of a crane, the net rack is spliced in the structural span or out of the structural span; when the three cranes are matched for construction, if the grid structure of the building and the site construction condition allow the other crane to be matched for aerial connection and hoisting, the grid structure is built outside the span; when a plurality of cranes are matched, the network architecture is built in a span.
3. The method for installing the ultra-large span steel net rack according to claim 2, wherein when the integrally hoisted large and medium-sized net rack uses a single or a plurality of pulling rods, the net rack of the building is arranged in the structural span; when the net rack is integrally hoisted by using a single pull rod, trial hoisting is carried out, and before formal hoisting, long steel rulers are respectively hung at the four corners of the net rack, and the height difference of the four corners is controlled to be lower than 100mm by the steel rulers; when the net rack is lifted to cross the installation elevation of the column top by 0.5m, stopping lifting, adjusting the wind-catching pulley block to be matched with the sliding rope, transversely moving the net rack to the column top or the surrounding column, and reducing by 0.5m each time or 100mm each time to adjust the reduction difference; the deviation of each support when the net rack is in place is adjusted through a jack, and the upwarp phenomenon is adjusted through the pulling and pressing of the chain block.
4. The method for installing the ultra-large span steel net rack according to claim 2 or 3, wherein the high-altitude block installation method is to assemble a small net rack on the ground, and the assembled small net rack is hoisted to a designed elevation to be in place by adopting a small number of vertical supports during construction and then is connected with an adjacent small net shell into a whole; the high-altitude slipping method is characterized in that a net frame assembled on the ground is slipped in place at high altitude and connected into a whole.
5. The method for installing the ultra-large span steel net rack according to any one of claims 1 to 3, wherein a movable scaffold for assisting high-altitude operation is provided:
the movable scaffold comprises a first base (1), a box body (2) is arranged above the first base (1), and a box cover (10) is detachably connected above the box body (2); a motor frame (3) is fixedly connected to one side of the box body (2), a motor (4) is detachably connected to the upper portion of the motor frame (3), a worm (9) is detachably connected to an output shaft of the motor (4), a worm wheel (5) is arranged above the worm (9), a gear (6) is arranged in the box body (2), a connecting shaft is arranged between the gear (6) and the worm wheel (5), and a central shaft is arranged on one side, away from the worm wheel (5), of the gear (6);
further, box (2) top is equipped with workstation (13), workstation (13) bottom is equipped with rack (8), rack (8) with gear (6) meshing, workstation (13) top is equipped with guardrail (14) all around, workstation (13) top is equipped with toolbox (15), toolbox (15) top is equipped with controller (16), the switch of controller (16) control motor (4).
6. The mounting method of the ultra-large span steel net rack according to claim 5, wherein the worm (9) is meshed with the motor (4), a bearing (7) is arranged between the connecting shaft and the box body (2), and a bearing (7) is arranged between the central shaft and the box body (2); the hydraulic telescopic rod (11) and the universal wheel (12) are fixedly connected to the lower portion of the first base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648811.8A CN111719698A (en) | 2020-07-07 | 2020-07-07 | Installation method of super-large-span steel net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648811.8A CN111719698A (en) | 2020-07-07 | 2020-07-07 | Installation method of super-large-span steel net rack |
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| Publication Number | Publication Date |
|---|---|
| CN111719698A true CN111719698A (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010648811.8A Pending CN111719698A (en) | 2020-07-07 | 2020-07-07 | Installation method of super-large-span steel net rack |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302775A (en) * | 2008-07-02 | 2008-11-12 | 天津大学 | Bolt connection prefabricated assembly quadrangular pyramid space grid structure and manufacturing method thereof |
| JP2009161943A (en) * | 2007-12-28 | 2009-07-23 | Nippon Sheet Glass Environment Amenity Co Ltd | Building construction method |
| CN108457463A (en) * | 2018-03-05 | 2018-08-28 | 高佳 | A kind of inner scaffold for construction and decoration |
-
2020
- 2020-07-07 CN CN202010648811.8A patent/CN111719698A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009161943A (en) * | 2007-12-28 | 2009-07-23 | Nippon Sheet Glass Environment Amenity Co Ltd | Building construction method |
| CN101302775A (en) * | 2008-07-02 | 2008-11-12 | 天津大学 | Bolt connection prefabricated assembly quadrangular pyramid space grid structure and manufacturing method thereof |
| CN108457463A (en) * | 2018-03-05 | 2018-08-28 | 高佳 | A kind of inner scaffold for construction and decoration |
Non-Patent Citations (2)
| Title |
|---|
| 徐玉有: "《建筑施工中网架与网壳拼装技术研究》", 《门窗》 * |
| 王哥知识小店的店: "《大跨度建筑如何进行钢结构的安装》", 4 April 2019, HTTPS://WENKU.BAIDU.COM/VIEW/96315A9254270722192E453610661ED9AD5155E8.HTML * |
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Application publication date: 20200929 |