CN117287045A - Starting cross-air butt joint installation method for plane net rack in narrow space - Google Patents
Starting cross-air butt joint installation method for plane net rack in narrow space Download PDFInfo
- Publication number
- CN117287045A CN117287045A CN202311423156.6A CN202311423156A CN117287045A CN 117287045 A CN117287045 A CN 117287045A CN 202311423156 A CN202311423156 A CN 202311423156A CN 117287045 A CN117287045 A CN 117287045A
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- China
- Prior art keywords
- net rack
- butt joint
- supporting device
- unit
- crane
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- 210000001503 joint Anatomy 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000010276 construction Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- 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
-
- 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
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- 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
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
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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
- E04G5/00—Component parts or accessories for scaffolds
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/10—Steps or ladders specially adapted for scaffolds
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
Landscapes
- 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 provides a method for starting cross-air butt joint installation of a narrow space planar net rack, which comprises the following steps: s1, manufacturing a grid unit: the original integral plane net rack is divided into two strip net rack units from the middle, so that the length of the original plane net rack is shortened; s2, selecting a lifting unit: according to the weight of the two net rack units, selecting a crane station and a crane rotation radius, and selecting a proper crane according to related parameters; s3, erecting a supporting device: manufacturing a supporting device for temporarily supporting the planar net rack according to the size of the planar net rack, hoisting the manufactured supporting device in place, and placing a hydraulic jack on the supporting device; s4, butt joint installation: one of the net rack units is hoisted, one end of the net rack unit is in place, and the other end of the net rack unit is placed on the hydraulic top of the supporting device. The method of the invention has small installation space, solves the difficult problems of production and construction, simultaneously can be completed by a single crane, reduces the risk of lifting and hanging by multiple cranes, and reduces the construction cost.
Description
Technical Field
The invention relates to the technical field of installation and construction of steel structure plane net racks, in particular to a method for starting cross-air butt joint installation of a narrow space plane net rack.
Background
Due to increasingly stringent environmental requirements, many materials are stacked in open air, and in view of environmental pollution, space sealing is required, so that an industrial plant is required to be constructed above the materials. Because the space planar grid structure has better stability and safety, the method can be suitable for large-span industrial plants, and the planar grid structure is rapidly developed. In general, in this case, owners will require production and construction of a factory building, which brings great difficulty to construction.
The traditional method for starting and crossing construction of the plane net rack comprises the following steps: 1. one or more spans are used as starting spans, and a plurality of cranes lift and hang simultaneously; 2. and taking one or more spans as starting spans, and installing the starting net rack by using the full-span scaffold. Both methods require emptying the space under the starting net rack, and at the same time, the two sides of the starting net rack require enough space to carry out the station of the crane, thus requiring a wide construction space. In the hoisting process, a plurality of cranes hoist simultaneously and keep synchronous continuously until the net rack is in place. In the hoisting process, the synchronous command difficulty is high, the crane driver is difficult to operate, and the installation risk is high.
Disclosure of Invention
The invention aims to provide a method for starting cross-air butt joint installation of a plane net rack in a narrow space aiming at the defects of the prior art.
The specific technical scheme is as follows:
a narrow space plane net rack starting cross-air butt joint installation method comprises the following steps:
s1, manufacturing a grid unit: the original integral plane net rack is divided into two strip net rack units from the middle, so that the length of the original plane net rack is shortened;
s2, selecting a lifting unit: according to the weight of the two net rack units, selecting a crane station and a crane rotation radius, and selecting a proper crane according to related parameters;
s3, erecting a supporting device: according to the size of the plane net rack, a supporting device for temporarily supporting the plane net rack is manufactured, the manufactured supporting device is hoisted in place, and a hydraulic jack is fixed on the supporting device;
s4, butt joint installation: one of the net rack units is hoisted, one end of the net rack unit is in place, and the other end of the net rack unit falls on the hydraulic top of the supporting device; then another net rack unit is hoisted, one end of the net rack unit is in butt joint with the first net rack unit in the air on the supporting device, and the other end of the net rack unit can be positioned after the butt joint is finished.
Optionally, strutting arrangement includes shaped steel frame, operation platform and dog, operation platform installs on shaped steel frame, the dog is located the relative both sides face of operation platform and is used for spacing grid unit.
Optionally, a ladder stand is further arranged on the section steel frame.
Optionally, the steel frame comprises a plurality of H-shaped steel beams.
Optionally, a plurality of diagonal braces are arranged in each H-shaped steel beam in a crossing mode.
Optionally, before the grid frame unit is hoisted in place, a support for positioning the grid frame unit is installed at a position where the grid frame unit is scheduled to be in place.
Optionally, the crane is provided with one crane.
Optionally, the support device may be removed after the two grid units are butt-mounted.
Compared with the prior art, the invention has the beneficial effects that:
the method only needs to divide the plane net rack into two single-piece net rack units for assembly, and a supporting device is erected in the middle of the starting net rack, so that the plane net rack can be butted in the air by using one crane, and finally a relatively stable starting unit is formed; the method has small installation space, solves the difficult problems of production and construction, simultaneously can be completed by a single crane, reduces the risk of lifting and hanging by multiple cranes, and reduces the construction cost.
Drawings
Fig. 1 is a schematic diagram of a top view structure of a narrow space planar net rack in a lifting butt joint in a method for starting a cross-air butt joint installation according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a front view structure of a supporting device in a method for starting overhead-crossing butt joint installation of a narrow space planar net rack according to an embodiment of the present invention;
fig. 3 is a schematic top view structure of a supporting device in a method for starting overhead-crossing butt joint installation of a narrow space planar net rack according to an embodiment of the present invention;
fig. 4 is a schematic top view structure of an operation platform in a method for starting cross-air butt joint installation of a narrow space planar net rack according to an embodiment of the present invention.
In the figure: 1. a grid unit; 2. a support device; 20. a hydraulic ram; 21. a section steel frame; 211. h-shaped steel beams; 212. a diagonal support; 22. an operating platform; 23. a stop block; 24. a ladder stand; 3. and (5) a support.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Referring to fig. 1 to 4, the method for starting the cross-air butt joint installation of the narrow space planar net rack provided by the invention comprises the following steps:
s1, manufacturing a grid unit 1: the original integral plane net rack is divided into two strip net rack units 1 from the middle, so that the length of the original plane net rack is shortened;
s2, selecting a lifting unit: according to the weight of the two net rack units 1, selecting a crane station and a crane rotation radius, and selecting a proper crane according to related parameters;
s3, erecting a supporting device 2: according to the size (height and width) of the plane net rack, a supporting device 2 for temporarily supporting the plane net rack is manufactured, the manufactured supporting device 2 is hoisted in place, a hydraulic jack 20 is fixed on the supporting device 2, the height of the hydraulic jack 20 is adjusted, and the hydraulic jack 20 is used for adjusting the heights of two net rack units 1, so that the two net rack units 1 can be conveniently connected;
s4, butt joint installation: one of the net rack units 1 is lifted, one end of the net rack unit is in place, and the other end of the net rack unit is placed on the hydraulic jack 20 of the supporting device 2; then another net rack unit 1 is lifted, one end of the net rack unit is in butt joint with the first net rack unit 1 in the air on the supporting device 2, and the other end of the net rack unit can be positioned after the butt joint is finished.
Specifically, the method only needs to disconnect the original plane net rack from the middle to be divided into two strip net rack units 1, so that the length of the original plane net rack is shortened, and the plane net rack can be hoisted by using one crane; because the crane can rotate 360 degrees in the hoisting process of the crane, the assembling site of the net rack unit 1 is not required to be selected right below the installation position of the plane net rack, and only an empty site within the rotation radius of the crane is required, so that the problems of narrow production site, narrow construction site and high construction difficulty are solved; in addition, the method only needs to use one crane to hoist one of the net rack units 1, one end is in place, the other end falls above the supporting device 2, then the other net rack unit 1 is hoisted and is in air butt joint with the first net rack unit 1, the other end can be in place after the butt joint is finished, the installation of the whole plane net rack is finished, and the single crane hoisting solves the problems that in the multi-crane hoisting process, the synchronism of all cranes in the hoisting and swinging processes must be ensured, the crane command difficulty is high, the crane driver is difficult to operate, and the safety risk is high.
Specifically, referring to fig. 1 to 3, the supporting device 2 in the present invention includes a section steel frame 21, an operation platform 22, and a stopper 23, wherein the operation platform 22 is mounted on the section steel frame 21, and the stopper 23 is disposed on two opposite sides of the operation platform 22 for limiting the grid unit 1; the section steel frame 21 includes a plurality of H-shaped steel beams 211; a plurality of inclined struts 212 are arranged in each H-shaped steel beam 211 in a crossing manner, the plurality of H-shaped steel beams 211 are fixedly connected to form a section steel frame 21 which is used as a main body of the supporting device 2 and is mainly used for bearing the two net rack units 1, the inclined struts 212 are arranged by adopting angle steel, and the inclined struts 212 are used for reinforcing the frame; the stop block 23 is also arranged as angle steel and is used for limiting the positions of the two net rack units 1 and preventing sliding; the operation platform 22 is used for the two-net rack butt joint process and is operated by personnel.
Referring to fig. 2, the section steel frame 21 is further provided with a ladder 24, and the ladder 24 is used for facilitating the up and down use of operators.
Before the grid unit 1 is hoisted in place, the supports 3 for positioning the grid unit 1 are arranged at the preset position of the grid unit 1, and when the supports 3 at the two ends of the plane grid are arranged, the supports 3 are fixed by electric welding spot welding through the bottom plate of the supports.
Referring to fig. 1, a rack unit 1 is hoisted in place by a crane, one end of the rack unit is connected with an installed support 3 for positioning, the other end of the rack unit is placed on a hydraulic ram 20 of a supporting device 2, then the plane position of the rack unit 1 is measured, the height of the rack unit 1 is adjusted by the hydraulic ram 20, the central position of the rack unit 1 is adjusted by the crane, and finally the rack unit 1 is fixed by a stop block 23; then the crane is rotated, another net rack unit 1 is hoisted by the crane, one end of the other net rack unit 1 is placed on the installed support 3, the other end of the other net rack unit 1 is hoisted by the crane, the height of the net rack unit 1 positioned in advance is adjusted by the hydraulic jack 20 on the supporting device 2, and the height and the center position of the net rack unit 1 at the back are adjusted by the crane, so that the butt joint installation of the two net rack units 1 on the operation platform 22 on the supporting device 2 is achieved; finally, the installed net rack units 1 are utilized to carry out the bulk loading of the plane net rack, and when the net rack units 1 in two spans are installed, the supporting device 2 can be removed.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. The method for starting the cross-air butt joint installation of the narrow space planar net rack is characterized by comprising the following steps of:
s1, manufacturing a grid unit: the original integral plane net rack is divided into two strip net rack units from the middle, so that the length of the original plane net rack is shortened;
s2, selecting a lifting unit: according to the weight of the two net rack units, selecting a crane station and a crane rotation radius, and selecting a proper crane according to related parameters;
s3, erecting a supporting device: according to the size of the plane net rack, a supporting device for temporarily supporting the plane net rack is manufactured, the manufactured supporting device is hoisted in place, and a hydraulic jack is fixed on the supporting device;
s4, butt joint installation: one of the net rack units is hoisted, one end of the net rack unit is in place, and the other end of the net rack unit falls on the hydraulic top of the supporting device; then another net rack unit is hoisted, one end of the net rack unit is in butt joint with the first net rack unit in the air on the supporting device, and the other end of the net rack unit can be positioned after the butt joint is finished.
2. The method for installing the narrow space planar net rack in a starting and air-crossing butt joint mode according to claim 1, wherein the supporting device comprises a profile steel frame, an operation platform and a stop block, the operation platform is installed on the profile steel frame, and the stop block is arranged on two opposite side surfaces of the operation platform and used for limiting the net rack units.
3. The method for starting overhead butt joint installation of the narrow space planar net rack according to claim 2, wherein a ladder is further arranged on the section steel frame.
4. The method of claim 2, wherein the steel frame comprises a plurality of H-beams.
5. The method for installing the narrow space planar network frame in a starting and air-crossing butt joint mode according to claim 4, wherein a plurality of inclined supports are arranged in each H-shaped steel beam in a crossing mode.
6. The method for installing the narrow space planar grid frames in a starting and crossing butt joint mode according to claim 1, wherein a support for positioning the grid units is arranged at a position where the grid units are scheduled to be positioned before the grid units are hoisted into position.
7. The method for installing the narrow space planar net rack in a starting cross-air butt joint mode according to claim 1, wherein one crane is arranged.
8. The method for installing the narrow space planar grid framework in a starting cross-air butt joint mode according to claim 1, wherein the supporting device can be removed after the butt joint installation of the two grid framework units is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311423156.6A CN117287045A (en) | 2023-10-30 | 2023-10-30 | Starting cross-air butt joint installation method for plane net rack in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311423156.6A CN117287045A (en) | 2023-10-30 | 2023-10-30 | Starting cross-air butt joint installation method for plane net rack in narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117287045A true CN117287045A (en) | 2023-12-26 |
Family
ID=89239151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311423156.6A Pending CN117287045A (en) | 2023-10-30 | 2023-10-30 | Starting cross-air butt joint installation method for plane net rack in narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117287045A (en) |
-
2023
- 2023-10-30 CN CN202311423156.6A patent/CN117287045A/en active Pending
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