CN115012679A - Space positioning and mounting method for steel-cantilever column in spherical steel structure - Google Patents
Space positioning and mounting method for steel-cantilever column in spherical steel structure Download PDFInfo
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- CN115012679A CN115012679A CN202210650790.2A CN202210650790A CN115012679A CN 115012679 A CN115012679 A CN 115012679A CN 202210650790 A CN202210650790 A CN 202210650790A CN 115012679 A CN115012679 A CN 115012679A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 179
- 239000010959 steel Substances 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000003466 welding Methods 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 abstract description 9
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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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
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a space positioning and mounting method of a steel-gathering column in a sphere steel structure, which comprises the steps of mounting a lower-layer steel structure, hoisting the inner-gathering steel column in place, temporarily connecting and fixing the steel column by using a steel column joint connecting plate and a bolt, fixedly connecting a support rod with an upper-end temporary connecting plate, welding and fixing the lower-end temporary connecting plate and a lower-layer radial steel beam after adjusting and positioning, bottoming and welding the steel column joint, hoisting a mechanical hook, hoisting the radial steel beam and the like. According to the invention, the butt joint positions of the upper steel column and the lower steel column are connected by adopting the temporary connecting plate, and the support rods are arranged between the inner cantilever steel column and the lower steel beam to perform space positioning and temporary fixing of the inner cantilever steel column, so that the inner cantilever steel column in a sphere steel structure can be quickly and accurately positioned and fixed, the accurate positioning of the space of the inclined column of the inner cantilever steel structure is ensured, and the installation quality of the steel structure is ensured; the temporary fixing device is simple in structure, low in construction difficulty and convenient to operate, installation efficiency of the spherical steel structure can be improved, and engineering cost is low.
Description
Technical Field
The invention relates to the technical field of steel structure construction, in particular to a space positioning and mounting method for a steel-picking column in a spherical steel structure.
Background
The inner and outer steel columns of the sphere steel structure are arc-shaped, and the inner column below the equator and the outer column above the equator incline towards the plane of the structure. When the oblique columns are installed in the spherical steel structure, the steel columns are relatively difficult to position and fix in space under the action of gravity, and the steel columns are easy to change in space position and damage to connecting plates at joints of the steel columns under the action of gravity; improper processing can cause the steel column space positioning to deviate, the installation efficiency is low, and direct influence can be brought to follow-up steel structure welding.
The Chinese patent with application number 201510520226.9 discloses an installation method of a spherical building steel structure, which comprises the following steps: (1) checking and accepting the foundation, and positioning the measuring point; (2) mounting a steel column from bottom to top, and mounting a layer after each layer is mounted; (3) the steel column is installed by firstly arranging an outer ring, then arranging a middle ring, then arranging a cross beam between the outer ring and the middle ring, and finally arranging an inner ring and a cross beam between the inner ring and the middle ring, sequentially finishing the next cross section according to the sequence, then connecting the cross beams between the two cross sections to form a plane structure, and so on, and after finishing the plane of the layer, delivering to civil engineering for platform construction; (4) and (4) repeating the steps (2) to (3) to finish the installation of the previous layer of structure until the structure is constructed to the top. The arc-shaped steel column is installed in a segmented mode, temporary supporting and steel cable fixing measures are adopted, the innovation point is that the installation process is optimized, the installation process is more reasonable, and a temporary fixing device or a space positioning method thereof is not involved. The utility model discloses a chinese utility model patent that application number is 201721229216.0 discloses a spherical reticulated shell steel construction installation location supporting platform, including base, installation positioner and spherical reticulated shell steel construction, still be equipped with drive arrangement on the base, installation positioner includes movable stand and linkage subassembly, the linkage subassembly includes the transfer line of being connected with the drive arrangement cooperation, the worm wheel spare of being connected with the transfer line cooperation, the worm spare of being connected with the worm wheel spare cooperation and the multistage shrink pipe of being connected with the worm spare cooperation, multistage shrink pipe is connected with the movable stand cooperation. This scheme passes through the cooperation of installation positioner and spherical reticulated shell steel construction can carry out altitude mixture control under the circumstances of guaranteeing not to produce the damage spherical reticulated shell steel construction, however, this location supporting platform and positioner's structure and cooperation are complicated, are unfavorable for on-the-spot use and operation.
Therefore, it is an urgent technical problem to be solved to develop a space positioning and mounting method for steel columns in the steel structure of the sphere with simple positioning structure and high construction efficiency.
Disclosure of Invention
Due to the defects in the prior art, the invention provides a space positioning and mounting method for a steel-picking column in a sphere steel structure, and aims to solve the problems of complex structures and complex matching of a supporting platform and a positioning device in the prior art.
In order to achieve the purpose, the invention provides a space positioning and mounting method of a steel picking column in a ball steel structure, which is characterized in that: the method comprises the following steps:
s1, finishing the installation and welding of the lower steel structure; prefabricating a temporary connecting plate at the joint of the steel column in advance;
step S2, connecting a hoisting machine with a lifting lug on the inner steel cantilever column, hoisting the inner steel cantilever column to an installation position in place, and temporarily connecting and fixing the steel column at a steel column joint by using a steel column joint connecting plate and a bolt;
step S3, fixedly connecting the support rod with a temporary connecting plate at the top end of the inner steel cantilever column;
step S4, positioning the space coordinate of the center point of the outer side of the top of the inner steel cantilever column, and welding and fixing the temporary connecting plate at the lower end of the supporting rod and the lower radial steel beam after the correctness is confirmed;
step S5, after backing welding is carried out on the steel column joint, the hoisting machinery is loosened;
step S6, hoisting the outer cantilever steel column and the radial steel beam between the inner steel column and the outer steel column on the same axis of the inner cantilever steel column;
step S7, repeating the steps S2 to S6, installing the inner and outer steel columns and the radial steel beam of the next axis, and installing the inner and outer circumferential steel beams between the two axis steel columns to form a stable frame structure;
and step S8, welding all steel column joints, and removing temporary measures such as steel column joint connecting plates and supporting rods after welding.
The space positioning and mounting method is characterized in that the joint of the upper steel column and the lower steel column is connected through the temporary connecting plate, and the support rod is arranged between the inner steel column and the lower steel beam to perform space positioning and temporary fixing of the inner steel column, so that the operation is convenient, the mounting quality of the steel structure can be ensured, and the mounting efficiency of the spherical steel structure is improved.
Furthermore, the lifting lugs on the inner steel lifting columns can be prefabricated on the steel columns in advance or welded on the steel columns on site.
Furthermore, the supporting rod, the inner steel picking column and the lower radial steel beam form an isosceles triangle. This feature enables the support rod to more stably support the inner steel cantilever column for positioning.
Further, the temporary connecting plate is a steel plate with the thickness of 25 mm.
Furthermore, the diameter of the supporting rod is 180mm, and two ends of the supporting rod are provided with fixed end plates.
Furthermore, two connecting lugs with the thickness of 16mm, the distance of 25mm and the diameter of 41mm are respectively arranged outwards on the end plates of the supporting rod; and the supporting rod and the temporary connecting plate are fixedly connected through a pin shaft.
Furthermore, after the pin shaft penetrates through the pin shaft hole, the steel rod penetrates through a pin hole with the diameter of 8mm at the bottom of the pin shaft to further fix the support rod.
Compared with the prior art, the invention has the following advantages or beneficial effects:
(1) the steel-structure inclined column positioning device can realize quick and accurate positioning and fixing of the steel-structure inner-cantilever column, ensure accurate positioning of the inclined column space of the inner-cantilever steel structure and ensure the installation quality of the steel structure;
(2) the temporary fixing device has simple structure and lower engineering cost;
(3) constructors do not need special training, the manpower requirement is low, and the steel structure installation efficiency can be improved.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic plan view of the temporary fixing of the steel cantilever columns in the spherical steel structure according to the present invention;
FIG. 2 is a schematic cross-sectional view of the temporary fixing of the steel cantilever columns in the spherical steel structure according to the present invention;
FIG. 3 is a diagram of a support rod node according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line 1-1 of FIG. 3;
FIG. 5 is a schematic view of a pin according to an embodiment of the present invention;
wherein, 1 is lower floor's inner column, 10 is lower floor's outer column, 11 is upper end temporary connection board, 12 is lower extreme temporary connection board, 2 chooses the steel column in for, 21 is steel column joint, 3 is the joint connection board, 4 is the bracing piece, 41 is the end plate, 42 is the engaging lug, 5 is radial girder steel, 6 is the round pin axle, 61 is the pinhole, 7 chooses the steel column outward, 81 is interior ring beam, 82 is outer ring beam, 9 is the secondary beam.
Detailed Description
The structure of the present invention will be further described with reference to the accompanying drawings and specific examples, but the present invention is not limited thereto.
Examples
As shown in fig. 1, a space positioning and mounting method for steel-gathering columns in a sphere steel structure comprises the following steps:
s1, mounting and welding lower-layer steel structures such as the lower-layer inner column 1, the lower-layer outer column 10 and the lower-layer radial steel beam 5; prefabricating a temporary connecting plate at the joint of the steel column in advance;
step S2, connecting lifting lugs on the inner steel lifting columns 2 through a lifting machine, lifting the inner steel lifting columns 2 to the installation positions in place, and temporarily connecting and fixing the steel columns at the steel column joints 21 through steel column joint connecting plates 3 and bolts;
step S3, fixedly connecting the support rod 4 with the temporary connecting plate 11 at the top end of the inner steel cantilever column;
step S4, positioning the space coordinate of the center point of the outer side of the top of the inner steel cantilever column, and welding and fixing the temporary connecting plate 12 at the lower end of the supporting rod 4 and the lower radial steel beam 5 after the correctness is confirmed;
step S5, after backing welding is carried out on the steel column joint 21, the hoisting machinery is loosened;
step S6, hoisting the radial steel beam between the outer cantilever steel column 7 and the inner and outer steel columns on the same axis of the inner cantilever steel column 2;
step S7, repeating steps S2 to S6 to install inner and outer steel columns and radial steel beams of the next axis, and installing inner and outer annular steel beams 81/82 between the two axis steel columns to form a stable frame structure;
and step S8, welding all steel column joints, and removing temporary measures such as steel column joint connecting plates and supporting rods after welding.
In this embodiment, the lifting lug on the inner steel lifting column 2 may be prefabricated on the steel column in advance, or may be welded on the steel column on site. The supporting rod 4, the inner steel cantilever column 2 and the lower radial steel beam 5 form an isosceles triangle. The temporary connecting plate 11 is a steel plate with the thickness of 25 mm. The diameter of the support rod 4 is 180mm, and two ends of the support rod are provided with fixed end plates 41. The end plates of the supporting rod 4 are respectively provided with two connecting lugs 42 which are 16mm thick, 25mm apart and 41mm diameter pin shaft holes in the centers; the supporting rod 4 and the temporary connecting plate 11 are fixedly connected through a pin shaft 6. After the pin shaft 6 penetrates through the pin shaft hole, the steel rod penetrates through a pin hole 61 with the diameter of 8mm at the bottom of the pin shaft 6 to further fix the support rod.
In conclusion, the invention provides a space positioning and mounting method for a steel-cantilever column in a spherical steel structure, which comprises the steps of mounting a lower-layer steel structure, hoisting the inner-cantilever column in place, temporarily connecting and fixing the steel column by using a steel column joint connecting plate and a bolt, fixedly connecting a support rod with an upper-end temporary connecting plate, welding and fixing a lower-end temporary connecting plate and a lower-layer radial steel beam after adjusting and positioning, bottoming and welding the steel column joint, hoisting a mechanical hook, hoisting the radial steel beam and the like. According to the invention, the butt joints of the upper steel column and the lower steel column are connected by adopting the temporary connecting plates, and the support rods are arranged between the inner steel picking columns and the lower steel beams to perform space positioning and temporary fixing of the inner steel picking columns, so that the quick and accurate positioning and fixing of the inner steel picking columns in the spherical steel structure can be realized, the accurate space positioning of the inclined columns of the inner steel picking structures is ensured, and the installation quality of the steel structure is ensured; the temporary fixing device is simple in structure, low in construction difficulty, convenient to operate, capable of improving the installation efficiency of the spherical steel structure and low in engineering cost.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention, unless the technical essence of the present invention is not departed from the content of the technical solution of the present invention.
Claims (7)
1. A space positioning and mounting method for a steel picking column in a sphere steel structure is characterized in that: the method comprises the following steps:
step S1, finishing the installation and welding of the lower steel structure; prefabricating a temporary connecting plate at the joint of the steel column in advance;
step S2, connecting a hoisting machine with a lifting lug on the inner steel cantilever column (2), hoisting the inner steel cantilever column (2) to an installation position in place, and temporarily connecting and fixing the steel column at a steel column joint (21) by using a steel column joint connecting plate (3) and a bolt;
step S3, fixedly connecting a support rod (4) with a temporary connecting plate (11) at the top end of the inner cantilever steel column;
s4, positioning the space coordinate of the center point of the outer side of the top of the inner steel cantilever column, and welding and fixing the temporary connecting plate (12) at the lower end of the supporting rod (4) and the lower radial steel beam (5) after the correctness is confirmed;
step S5, after backing welding is carried out on the steel column joint (21), the hoisting machine loosens the hook;
step S6, hoisting the radial steel beam between the outer cantilever steel column (7) and the inner and outer steel columns on the same axis of the inner cantilever steel column (2);
step S7, repeating the steps S2 to S6, installing the inner and outer steel columns and the radial steel beam of the next axis, and installing the inner and outer circumferential steel beams between the two axis steel columns to form a stable frame structure;
and step S8, welding all steel column joints, and removing temporary measures such as steel column joint connecting plates and supporting rods after welding.
2. The spatial positioning and installation method of the steel-gathering column in the steel structure of the sphere according to claim 1, characterized in that the lifting lugs on the steel-gathering column (2) can be prefabricated on the steel column in advance or welded on the steel column on site.
3. The spatial positioning and installation method of the steel cantilever columns in the spherical steel structure according to claim 1, wherein the cross sections of the support rods (4), the inner steel cantilever columns (2) and the lower radial steel beams (5) form an isosceles triangle.
4. The method for spatially positioning and installing steel cantilever columns in a spherical steel structure according to claim 1, wherein the temporary connecting plate (11) is a steel plate with a thickness of 25 mm.
5. The spatial positioning and installation method of steel cantilever columns in the spherical steel structure of claim 4, wherein the diameter of the support rod (4) is 180mm, and the two ends are provided with fixed end plates (41).
6. The space positioning and installation method of the steel cantilever column in the spherical steel structure is characterized in that two connecting lugs (42) with the thickness of 16mm, the distance of 25mm and the central diameter of 41mm are respectively and outwards arranged on the end plates of the supporting rod (4); the supporting rod (4) and the temporary connecting plate (11) are fixedly connected through a pin shaft (6).
7. The method for spatially positioning and installing steel cantilever columns in a spherical steel structure according to claim 6, wherein after the pin shaft (6) passes through the pin shaft hole, the steel rod passes through a pin hole (61) with a diameter of 8mm at the bottom of the pin shaft (6) to further fix the support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210650790.2A CN115012679A (en) | 2022-06-10 | 2022-06-10 | Space positioning and mounting method for steel-cantilever column in spherical steel structure |
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| CN202210650790.2A CN115012679A (en) | 2022-06-10 | 2022-06-10 | Space positioning and mounting method for steel-cantilever column in spherical steel structure |
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| CN111691681A (en) * | 2020-06-09 | 2020-09-22 | 浙江东南网架股份有限公司 | Method for mounting outer frame cylinder structure of diagonal steel pipe grid column |
| CN113668873A (en) * | 2021-08-12 | 2021-11-19 | 中建四局第五建筑工程有限公司 | Mounting method of inclined support steel column |
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2022
- 2022-06-10 CN CN202210650790.2A patent/CN115012679A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006273398A (en) * | 2005-03-30 | 2006-10-12 | Ishii Iron Works Co Ltd | Reinforcement structure of spherical tank leg |
| US20150143769A1 (en) * | 2013-11-27 | 2015-05-28 | Mitsubishi Hitachi Power Systems, Ltd. | Steel-frame building, plant, and method for assembling steel-frame building |
| CN105064505A (en) * | 2015-08-06 | 2015-11-18 | 中国华西企业股份有限公司 | Reverse triangular pipe truss and construction method of reverse triangular pipe truss |
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| CN106869507A (en) * | 2017-01-09 | 2017-06-20 | 中交航局安装工程有限公司 | A kind of mounting process across spherical storehouse super large truss |
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| CN111335648A (en) * | 2020-03-31 | 2020-06-26 | 五冶集团上海有限公司 | Layered and segmented installation method for large-span spherical crown-shaped grid structure |
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| CN113668873A (en) * | 2021-08-12 | 2021-11-19 | 中建四局第五建筑工程有限公司 | Mounting method of inclined support steel column |
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