CN107620501B - Be applied to assembled node of double-deck steel construction cooling tower - Google Patents
Be applied to assembled node of double-deck steel construction cooling tower Download PDFInfo
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- CN107620501B CN107620501B CN201711013846.9A CN201711013846A CN107620501B CN 107620501 B CN107620501 B CN 107620501B CN 201711013846 A CN201711013846 A CN 201711013846A CN 107620501 B CN107620501 B CN 107620501B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
An assembled node applied to a cooling tower with a double-layer steel structure relates to an assembled node. The invention solves the problems of difficult construction, poor quality and low bearing capacity of the assembled bolt ball node of the existing steel cooling tower welded node. One side of the rectangular sealing plate is welded at the end part of the annular chord member of the node area, and the other side of the rectangular sealing plate is welded with a lap joint assembly; the side lug plates are welded on the inner side of a node area of the annular chord member node assembly, one side of the circular sealing plate is welded on the end part of the inclined web member of the node area, and the upper lug plates and the lower lug plates are correspondingly welded on the upper side and the lower side of the other side of the circular sealing plate; the side ear plate is positioned between the upper ear plate and the lower ear plate and is fixedly connected through a high-strength bolt; the connecting assembly is provided with a bolt connecting through hole, and the lap joint assembly of the vertical chord member node assembly is connected with the lap joint assembly of the annular chord member node assembly through a connecting piece assembly and a plurality of high-strength bolts. The invention is applied to the cooling tower with the double-layer steel structure.
Description
Technical Field
The invention relates to an assembled node applied to a cooling tower with a double-layer steel structure, and belongs to the technical field of building steel structures.
Background
At present, a natural ventilation hyperbolic cooling tower mostly adopts a traditional reinforced concrete structure, and in recent years, with the strong promotion of national building industrialization and the excellent structural performance of high strength and light weight of a steel structure, the steel structure cooling tower is more and more favored by people. However, the node construction of the steel cooling tower has a plurality of problems, and the welding rigid nodes are adopted, so that the high-altitude welding construction is difficult and the quality is difficult to guarantee; the stable bearing capacity of the structure is too low by adopting the assembled bolt ball hinged joint. In addition, the double-layer steel cooling tower rod piece has high stable bearing capacity and rigidity, uniform stress and mainly tension and compression, and is suitable for adopting semi-rigid assembly type nodes.
In conclusion, the welding joint of the steel cooling tower is difficult to construct and has poor quality; the load-bearing capacity of the ball joints of the assembly type bolts is too low.
Disclosure of Invention
The invention aims to solve the problems of difficult construction, poor quality and low bearing capacity of an assembled bolt ball node of a steel cooling tower, and further provides an assembled node applied to a double-layer steel structure cooling tower.
The technical scheme adopted for solving the technical problems is as follows:
the invention relates to an assembled node applied to a double-layer steel structure cooling tower, which comprises a vertical chord member node assembly 1, two annular chord member node assemblies 2, two inclined web member node assemblies 3 and two connecting assemblies 4; the vertical chord member node assembly 1 comprises a node area vertical chord member 6, a node area radial web member 7 and two lap joint assemblies 8; each overlap assembly 8 comprises a rib plate 9, a left flange plate 10 and a right flange plate 11; the left flange plate 10 and the right flange plate 11 are welded on the left side and the right side of the rib plate 9, the two lap joint assemblies 8 are symmetrically welded on the two sides of the vertical chord member 6 of the node area, and the radial web member 7 of the node area is horizontally welded in the middle of the vertical chord member 6 of the node area;
the annular chord member node assembly 2 comprises a node area annular chord member 12, a rectangular sealing plate 13 and a lap joint assembly 8, wherein one side of the rectangular sealing plate 13 is welded at the end part of the node area annular chord member 12, and the other side of the rectangular sealing plate 13 is welded with the lap joint assembly 8;
the diagonal web member node assembly 3 comprises a node area diagonal web member 22, a circular sealing plate 14, an upper ear plate 15, a lower ear plate 16 and a side ear plate 17; the side lug plates 17 are welded on the inner side of the node area of the annular chord member node assembly 2, one side of the circular sealing plate 14 is welded on the end part of the inclined web member 22 of the node area, and the other side of the circular sealing plate 14 is correspondingly welded with an upper lug plate 15 and a lower lug plate 16 up and down; the side ear plate 17 is positioned between the upper ear plate 15 and the lower ear plate 16 and fixedly connected through the high-strength bolt 5;
the connecting assembly 4 comprises an upper connecting plate 18, a lower connecting plate 19, a left connecting plate 20 and a right connecting plate 21; the connecting component 4 is provided with a bolt connecting through hole, and the lap joint component 8 of the vertical chord member node component 1 is connected with the lap joint component 8 of the annular chord member node component 2 through the connecting component 4 and a plurality of high-strength bolts 5.
Further, the vertical chord member 6 of the node area is a rectangular square steel pipe, and the radial web member 7 of the node area is a round steel pipe.
Further, the annular chord member 12 in the node area is a rectangular square steel pipe, and the diagonal web member 22 in the node area is a round steel pipe.
Further, the upper and lower ear panels 15 and 16 are symmetrically disposed about the horizontal center line of the circular seal plate 14.
Further, the rib plate 9, the left flange plate 10 and the right flange plate 11 are arranged in a cross shape, and bolt connection through holes are correspondingly processed on the rib plate 9, the left flange plate 10 and the right flange plate 11 and the connecting assembly 4.
Further, when the vertical chord member node assembly 1 and the annular chord member node assembly 2 are assembled into a whole by adopting the connecting assembly 4 and the plurality of high-strength bolts 5, the upper connecting plate 18 is fixedly connected with the upper part of the rib plate 9, the lower connecting plate 19 is fixedly connected with the lower part of the rib plate 9, the left connecting plate 20 is fixedly connected with the left flange plate 10, and the right connecting plate 21 is fixedly connected with the right flange plate 11.
Compared with the prior art, the invention has the following beneficial effects:
1. all accessories of the node are prefabricated in a factory, and only assembly connection of each node area is needed on site, so that the construction speed is high, and the construction quality can be ensured;
2. the chords are spliced by a plurality of pairs of connecting plates, the plurality of pairs of high-strength bolts are connected, the stress distribution of the node areas is uniform, the node rigidity is high, the safety reserve is large, and the requirement of the structural bearing capacity can be met;
3. the semi-rigid assembly type node is simple in structure and convenient to construct, and is suitable for a cooling tower with an ultra-large double-layer steel structure.
Drawings
FIG. 1 is a perspective view of the entire structure of an assembled node of the present invention applied to a cooling tower of a double-layered steel structure;
fig. 2 is a perspective view of a vertical chord node assembly 1 according to a first embodiment of the invention;
FIG. 3 is a schematic illustration of the connection of a middle hoop-chord node assembly 2 and a diagonal web member node assembly 3 in accordance with one embodiment of the present invention;
fig. 4 is a schematic diagram showing the connection between the connecting component 4 and the lap joint component 8 according to the fourth embodiment of the present invention.
Detailed Description
The first embodiment is as follows: as shown in fig. 1 to 4, the fabricated node applied to the cooling tower with the double-layer steel structure of the present embodiment includes a vertical chord node assembly 1, two circumferential chord node assemblies 2, two diagonal web node assemblies 3 and two connecting assemblies 4; the vertical chord member node assembly 1 comprises a node area vertical chord member 6, a node area radial web member 7 and two lap joint assemblies 8; each overlap assembly 8 comprises a rib plate 9, a left flange plate 10 and a right flange plate 11; the left flange plate 10 and the right flange plate 11 are welded on the left side and the right side of the rib plate 9, the two lap joint assemblies 8 are symmetrically welded on the two sides of the vertical chord member 6 of the node area, and the radial web member 7 of the node area is horizontally welded in the middle of the vertical chord member 6 of the node area;
the annular chord member node assembly 2 comprises a node area annular chord member 12, a rectangular sealing plate 13 and a lap joint assembly 8, wherein one side of the rectangular sealing plate 13 is welded at the end part of the node area annular chord member 12, and the other side of the rectangular sealing plate 13 is welded with the lap joint assembly 8;
the diagonal web member node assembly 3 comprises a node area diagonal web member 22, a circular sealing plate 14, an upper ear plate 15, a lower ear plate 16 and a side ear plate 17; the side lug plates 17 are welded on the inner side of the node area of the annular chord member node assembly 2, one side of the circular sealing plate 14 is welded on the end part of the inclined web member 22 of the node area, and the other side of the circular sealing plate 14 is correspondingly welded with an upper lug plate 15 and a lower lug plate 16 up and down; the side ear plate 17 is positioned between the upper ear plate 15 and the lower ear plate 16 and fixedly connected through the high-strength bolt 5;
the connecting assembly 4 comprises an upper connecting plate 18, a lower connecting plate 19, a left connecting plate 20 and a right connecting plate 21; the connecting component 4 is provided with a bolt connecting through hole, and the lap joint component 8 of the vertical chord member node component 1 is connected with the lap joint component 8 of the annular chord member node component 2 through the connecting component 4 and a plurality of high-strength bolts 5. Thereby assembling the vertical chord node assembly 1 and the hoop chord node assembly 2 as one body.
The second embodiment is as follows: as shown in fig. 1 and 2, the vertical chord member 6 in the node area of the present embodiment is a rectangular square steel pipe, and the radial web member 7 in the node area is a circular steel pipe. By the design, the vertical chord member 6 in the node area is subjected to the combined action of bending moment and axial force, and the radial web member 7 in the node area is only subjected to the axial force, so that rectangular square steel pipes and round steel pipes are adopted respectively. Other components and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: as shown in fig. 1 and 3, the node-area circumferential chord 12 of the present embodiment is a rectangular square steel pipe, and the node-area diagonal web member 22 is a circular steel pipe. By the design, the annular chord member 12 in the node area is subjected to the combined action of bending moment and axial force, and the diagonal web member 22 in the node area is only subjected to axial force, so that rectangular square steel pipes and round steel pipes are adopted respectively. Other components and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: as shown in fig. 3, the upper ear plate 15 and the lower ear plate 16 of the present embodiment are symmetrically disposed about the horizontal center line of the circular seal plate 14. By the design, the axial force eccentricity of the web member can be reduced, so that the web member is basically only subjected to axial force. Other compositions and connection relationships are the same as those of the third embodiment.
Fifth embodiment: as shown in fig. 1 and 4, the rib plate 9, the left flange plate 10 and the right flange plate 11 in this embodiment are disposed in a cross shape, and the rib plate 9, the left flange plate 10 and the right flange plate 11 and the connecting assembly 4 are correspondingly processed with bolt connecting through holes. By the design, all accessories of the nodes are prefabricated in a factory, and only assembly connection of each node area is needed on site, so that the construction speed is high, and the construction quality can be guaranteed. Other compositions and connection relationships are the same as those of the first, second or fourth embodiments.
Specific embodiment six: as shown in fig. 1 and 4, in this embodiment, when the vertical chord node assembly 1 and the hoop chord node assembly 2 are assembled into a whole by using the connection assembly 4 and the plurality of high-strength bolts 5, the upper connection plate 18 is fixedly connected with the upper portion of the rib plate 9, the lower connection plate 19 is fixedly connected with the lower portion of the rib plate 9, the left connection plate 20 is fixedly connected with the left flange plate 10, and the right connection plate 21 is fixedly connected with the right flange plate 11. The design is convenient for the assembly connection of each node area. Other components and connection relationships are the same as those of the fifth embodiment.
Claims (2)
1. The assembled node comprises a vertical chord member node assembly (1), two ring chord member node assemblies (2), two inclined web member node assemblies (3) and two connecting assemblies (4); the method is characterized in that: the vertical chord member node assembly (1) comprises a node area vertical chord member (6), a node area radial web member (7) and two lap joint assemblies (8); each lap joint assembly (8) comprises a rib plate (9), a left flange plate (10) and a right flange plate (11); the left flange plate (10) and the right flange plate (11) are welded on the left side and the right side of the rib plate (9), the left flange plate (10) and the right flange plate (11) are arranged in a cross shape, and the rib plate (9), the left flange plate (10) and the right flange plate (11) are correspondingly processed with the connecting component (4) through bolt connecting holes;
the two lap joint assemblies (8) are symmetrically welded on two sides of the vertical chord member (6) in the node area, and the radial web member (7) in the node area is horizontally welded in the middle of the vertical chord member (6) in the node area; the vertical chord member (6) of the node area is a rectangular square steel pipe, and the radial web member (7) of the node area is a circular steel pipe;
the annular chord member node assembly (2) comprises a node area annular chord member (12), a rectangular sealing plate (13) and a lap joint assembly (8), one side of the rectangular sealing plate (13) is welded at the end part of the node area annular chord member (12), the node area annular chord member (12) is a rectangular square steel pipe, and the lap joint assembly (8) is welded at the other side of the rectangular sealing plate (13);
the diagonal web member node assembly (3) comprises a node area diagonal web member (22), a circular sealing plate (14), an upper ear plate (15), a lower ear plate (16) and a side ear plate (17); the side lug plates (17) are welded on the inner side of a node area of the annular chord member node assembly (2), one side of the circular sealing plate (14) is welded on the end part of the inclined web member (22) of the node area, and the inclined web member (22) of the node area is a circular steel pipe; an upper ear plate (15) and a lower ear plate (16) are correspondingly welded on the other side of the round sealing plate (14) up and down; the side ear plate (17) is positioned between the upper ear plate (15) and the lower ear plate (16) and is fixedly connected with the upper ear plate through a high-strength bolt (5);
the connecting assembly (4) comprises an upper connecting plate (18), a lower connecting plate (19), a left connecting plate (20) and a right connecting plate (21); the connecting assembly (4) is provided with a bolt connecting through hole, and the lap joint assembly (8) of the vertical chord member node assembly (1) is connected with the lap joint assembly (8) of the annular chord member node assembly (2) through the connecting assembly (4) and a plurality of high-strength bolts (5);
when the vertical chord member node assembly (1) and the annular chord member node assembly (2) are assembled into a whole by adopting the connecting assembly (4) and the plurality of high-strength bolts (5), the upper connecting plate (18) is fixedly connected with the upper part of the rib plate (9), the lower connecting plate (19) is fixedly connected with the lower part of the rib plate (9), the left connecting plate (20) is fixedly connected with the left flange plate (10), and the right connecting plate (21) is fixedly connected with the right flange plate (11).
2. A fabricated node for use in a double-layer steel structure cooling tower according to claim 1, wherein: the upper ear plate (15) and the lower ear plate (16) are symmetrically arranged about the horizontal center line of the circular sealing plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013846.9A CN107620501B (en) | 2017-10-26 | 2017-10-26 | Be applied to assembled node of double-deck steel construction cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013846.9A CN107620501B (en) | 2017-10-26 | 2017-10-26 | Be applied to assembled node of double-deck steel construction cooling tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107620501A CN107620501A (en) | 2018-01-23 |
| CN107620501B true CN107620501B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711013846.9A Active CN107620501B (en) | 2017-10-26 | 2017-10-26 | Be applied to assembled node of double-deck steel construction cooling tower |
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| CN (1) | CN107620501B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108444119A (en) * | 2018-03-23 | 2018-08-24 | 无锡惠汕金属制品有限公司 | Photo-thermal solar bracket cross pipe |
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| JPH05141000A (en) * | 1991-11-13 | 1993-06-08 | Misawa Homes Co Ltd | Column-beam joining member of dwelling unit |
| CN202090654U (en) * | 2010-12-30 | 2011-12-28 | 国家电网公司 | Joint for steel tube tower |
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| CN202644734U (en) * | 2012-02-20 | 2013-01-02 | 中国电力科学研究院 | Cross plugboard |
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2017
- 2017-10-26 CN CN201711013846.9A patent/CN107620501B/en active Active
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| JPH05141000A (en) * | 1991-11-13 | 1993-06-08 | Misawa Homes Co Ltd | Column-beam joining member of dwelling unit |
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| CN202644734U (en) * | 2012-02-20 | 2013-01-02 | 中国电力科学研究院 | Cross plugboard |
| CN104912222A (en) * | 2015-05-13 | 2015-09-16 | 华南理工大学 | Double-gusset-plate clamping type buckling-restrained brace bolt and welding hybrid connecting node |
| CN105064739A (en) * | 2015-08-11 | 2015-11-18 | 中国五洲工程设计集团有限公司 | Hyperbolic double-layer reticulated shell steel structure cooling tower |
| CN105464211A (en) * | 2015-12-28 | 2016-04-06 | 天津大学 | Assembly type steel frame cast steel joints and installation method thereof |
| CN106088706A (en) * | 2016-06-21 | 2016-11-09 | 武汉大学 | A kind of checkerboard type quadrangular pyramid lattice steel constructions cooling tower |
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| CN107620501A (en) | 2018-01-23 |
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