CN117587929A - Center pressure ring of annular closed folded plate reticulated shell structure and construction method thereof - Google Patents
Center pressure ring of annular closed folded plate reticulated shell structure and construction method thereof Download PDFInfo
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- CN117587929A CN117587929A CN202410063211.3A CN202410063211A CN117587929A CN 117587929 A CN117587929 A CN 117587929A CN 202410063211 A CN202410063211 A CN 202410063211A CN 117587929 A CN117587929 A CN 117587929A
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 238000012545 processing Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000011166 aliquoting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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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
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
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- Architecture (AREA)
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- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a central pressure ring of a ring-direction closed folded plate reticulated shell structure and a construction method thereof, wherein the central pressure ring comprises: an inner ring beam, an outer ring beam, an inner ring connecting beam and a connecting port; the horizontal height of the outer ring beam is lower than that of the inner ring beam; the number of the inner ring connecting beams and the outer ring connecting beams is multiple, the inner ring connecting beams and the outer ring connecting beams are uniformly arranged on the outer sides of the inner ring beams, and connecting ports are fixedly arranged at the end parts of the inner ring connecting beams and the outer ring connecting beams; the outer ring beam penetrates through and is fixed at the bottom of the middle part of the inner ring connecting beam and the outer ring connecting beam; the high-level radial connecting rod and the low-level radial connecting rod of the upper-layer reticulated shell steel structure support are fixedly connected with the connecting port and the outer ring beam respectively. According to the invention, the force of the high-position radial connecting rod is transmitted to the inner ring beam, the force of the low-position radial connecting rod is transmitted to the outer ring beam, and the height difference between the inner ring beam and the outer ring beam is set, so that the force applied to the pressure ring by the upper layer net shell steel structure support is divided into an upper layer and a lower layer to be counteracted, the rigidity of the node is improved, and the bending strength is increased.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a central pressure ring of a ring-direction closed folded plate reticulated shell structure and a construction method thereof.
Background
With the development of society and the advancement of technology, oversized steel structural supports are developed, and the production, assembly and maintenance of the oversized steel structural supports require a large number of personnel and crane operations. The traditional steel structure bracket is mature in assembly and maintenance technology.
However, along with the development of society, the aesthetic demands of people on buildings are also increasing, and a plurality of special-shaped steel structural brackets are also appeared. Especially when the below of upper strata dysmorphism steel construction guipure does not have vertical support structure, can design the upper strata dysmorphism steel construction guipure as the turn over face structure along the hoop face, but such structure is similar to the triangular truss, can guarantee structure self rigidity, but three radial connecting rods of turn over face can have the difference in height, when all radial connecting rod piece cross in top pressure ring, because the bigger member of cross-section is too close, the atress of pressure ring can have certain problem.
Disclosure of Invention
The invention discloses a central pressure ring of a ring-direction closed folded plate reticulated shell structure, which aims at overcoming the defects of the prior art and comprises the following components: an inner ring beam, an outer ring beam, an inner ring connecting beam and a connecting port; the inner ring beam and the outer ring beam are of circular ring structures, and the horizontal height of the outer ring beam is lower than that of the inner ring beam; the number of the inner ring connecting beams and the outer ring connecting beams is multiple, the inner ring connecting beams and the outer ring connecting beams are uniformly arranged on the outer sides of the inner ring beams, and connecting ports are fixedly arranged at the end parts of the inner ring connecting beams and the outer ring connecting beams; the outer ring beam penetrates through the bottom of the middle part of the inner ring connecting beam and the outer ring beam and the inner ring connecting beam are fixedly connected; the high-order radial connecting rod of upper-layer reticulated shell steel structure support is fixedly connected with the connecting port, and the low-order radial connecting rod of upper-layer reticulated shell steel structure support is fixedly connected with the outer ring beam.
Preferably, the upper half part of the inner and outer ring connecting beams is of a rectangular structure, and the lower half part of the inner and outer ring connecting beams is of a trapezoid structure; the middle part of the trapezoid structure of the inner ring beam and the outer ring connecting beam penetrates through the inner ring connecting beam and the outer ring connecting beam; a plurality of inner reinforcing plates are arranged in the inner and outer ring connecting beams.
Preferably, the height difference of the inner ring beam and the outer ring beam is equal to the height difference of the high-position radial connecting rod of the upper-layer net shell steel structure bracket and the low-position radial connecting rod of the upper-layer net shell steel structure bracket.
Preferably, the end of the connection port is provided with a lap joint structure.
Preferably, the number and the positions of the inner ring connecting beams and the outer ring connecting beams are matched with those of the high-position radial connecting rods of the upper-layer net shell steel structure support.
Preferably, the number of the inner and outer ring connection beams is 24, and the 24 inner and outer ring connection beams are uniformly installed at the outer side of the inner ring beam.
Preferably, the central pressure ring comprises 24 pressure ring subunits; the pressure ring subunit includes: an inner ring beam subunit, an outer ring beam subunit, an inner ring and outer ring connecting beam and a connecting port; one end of the inner ring connecting beam and one end of the outer ring connecting beam are fixedly arranged in the middle of the outer side of the inner ring beam subunit, and the connecting port is fixedly arranged at the other end of the inner ring connecting beam and the outer ring connecting beam; the outer ring beam subunit penetrates through the bottom of the middle part of the inner ring connecting beam and the middle part of the outer ring beam subunit is fixedly connected with the inner ring connecting beam and the outer ring connecting beam; the 24 inner ring beam subunits are connected into an inner ring beam; the 24 outer ring beam subunits are connected into an outer ring beam.
Based on a unified design idea, the invention provides a construction method of a central pressure ring of a ring-shaped closed folded plate reticulated shell structure, which comprises the following steps: step 1, processing pressure ring subunits in a factory, and splicing the 24 pressure ring subunits into equally divided pressure rings, wherein the equally divided pressure rings are trisection pressure rings or quarter pressure rings; step 2, conveying the spliced equal-division pressure rings to a construction site; step 3, assembling a supporting platform; step 4, hoisting the spliced equal-divided pressure rings to a supporting platform, and splicing the equal-divided pressure rings into a central pressure ring; step 5, adjusting the central pressure ring into position; step 6, symmetrically hoisting two groups of first upper layer net shell steel structure brackets in place, fixedly connecting a first radial connecting rod positioned at the high position of the first upper layer net shell steel structure brackets with a connecting port, fixedly connecting a second radial connecting rod positioned at the low position of the first upper layer net shell steel structure brackets with an outer ring beam, and fixing the bottom of the first upper layer net shell steel structure brackets; step 7, symmetrically hoisting two groups of second upper layer net shell steel structure supports to adjacent positions of the first upper layer net shell steel structure supports, fixedly connecting a third radial connecting rod positioned at the lower position of the second upper layer net shell steel structure supports with an outer ring beam, fixedly connecting a fourth radial connecting rod positioned at the higher position of the second upper layer net shell steel structure supports with a connecting port, fixing the bottoms of the second upper layer net shell steel structure supports, and connecting the adjacent first upper layer net shell steel structure supports with the second upper layer net shell steel structure supports; and 8, repeating the step 7, and installing the first upper-layer net shell steel structure bracket and the second upper-layer net shell steel structure bracket at intervals until all the first upper-layer net shell steel structure bracket and the second upper-layer net shell steel structure bracket are installed.
Preferably, in step 1, the machining of the pressure ring subunit at the factory comprises the steps of: penetrating the outer ring beam subunit through the bottom of the middle part of the inner ring connecting beam and fixedly connecting the middle part of the outer ring beam subunit with the inner ring connecting beam and the outer ring connecting beam; one end of the inner ring connecting beam and one end of the outer ring connecting beam are fixedly arranged in the middle of the outer side of the inner ring beam subunit; and fixedly mounting the connecting port at the other end of the inner ring and the outer ring connecting beam.
Preferably, in step 1, splicing the 24 pressure ring subunits into an aliquoting pressure ring comprises the steps of: grouping 8 pressure ring subunits or 6 pressure ring subunits into a group; and splicing the pressure ring subunits in the same group into equal-division pressure rings, wherein the inner ring beam subunits of the pressure ring subunits are connected with the inner ring beam subunits of the adjacent pressure ring subunits, and the outer ring beam subunits of the pressure ring subunits are connected with the outer ring beam subunits of the adjacent pressure ring subunits.
Compared with the closest prior art, the invention has the beneficial effects that:
1. according to the invention, the high-position radial connecting rod of the upper-layer reticulated shell steel structure bracket is fixedly connected with the connecting port, namely, the force of the high-position radial connecting rod is transmitted to the inner ring beam, the low-position radial connecting rod of the upper-layer reticulated shell steel structure bracket is fixedly connected with the outer ring beam, namely, the force of the low-position radial connecting rod is transmitted to the outer ring beam, and the overall stress performance is improved.
2. The inner ring beam and the outer ring beam are arranged with height difference, and the lower half part of the inner ring connecting beam and the outer ring connecting beam are of a trapezoid structure, so that the rigidity of the whole outer ring can be increased, the bending strength is increased, the stability of the whole framework is improved, and meanwhile, the materials are saved.
3. The invention divides the central pressure ring into a plurality of pressure ring subunits with the same structure, and assembles the pressure ring subunits into equal molecular units, thereby simplifying the manufacturing process of the central pressure ring and increasing the construction speed.
Drawings
FIG. 1 is a schematic view of the structure of the center pressure ring of the present invention.
FIG. 2 is a schematic top view of the central pressure ring of the present invention.
FIG. 3 is a schematic diagram of the unit structure of the center pressure ring of the present invention.
FIG. 4 is a schematic view of a partial cross-sectional structure of a central pressure ring of the present invention.
Fig. 5 is a schematic structural view of a first upper latticed shell steel structural support of the present invention.
Fig. 6 is a schematic structural view of a second upper latticed shell steel structural support of the present invention.
FIG. 7 is a schematic diagram of the connection structure of the central pressure ring and the upper latticed shell steel structure support of the invention.
Reference numerals:
the steel structure comprises a 1-inner ring beam, a 2-outer ring beam, a 3-inner ring connecting beam, a 31-inner reinforcing plate, a 4-connecting port, a 5-first upper layer net shell steel structure support, a 51-first radial connecting rod, a 52-second radial connecting rod, a 6-second upper layer net shell steel structure support, a 61-third radial connecting rod and a 62-fourth radial connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1-4, the present invention provides a central pressure ring of a circumferentially closed flap reticulated shell structure, comprising: an inner ring beam 1, an outer ring beam 2, an inner ring connecting beam 3 and a connecting port 4; the inner ring beam 1 and the outer ring beam 2 are of ring structures, and the horizontal height of the outer ring beam 2 is lower than that of the inner ring beam 1; the number of the inner ring connecting beams 3 is multiple, the inner ring connecting beams 3 are uniformly arranged on the outer side of the inner ring beam 1, and connecting ports 4 are fixedly arranged at the end parts of the inner ring connecting beams 3; the outer ring beam 2 penetrates through the bottom of the middle part of the inner ring connecting beam 3, and the outer ring beam 2 is fixedly connected with the inner ring connecting beam 3; the high-order radial connecting rod of the upper layer net shell steel structure bracket is fixedly connected with the connecting port 4, and the low-order radial connecting rod of the upper layer net shell steel structure bracket is fixedly connected with the outer ring beam 2. The high-position radial connecting rod of the upper-layer net shell steel structure support is fixedly connected with the connecting port, namely, the force of the high-position radial connecting rod is transmitted to the inner ring beam, the low-position radial connecting rod of the upper-layer net shell steel structure support is fixedly connected with the outer ring beam, namely, the force of the low-position radial connecting rod is transmitted to the outer ring beam, and the overall stress performance is improved. The inner ring beam and the outer ring beam are provided with the height difference which is the same as that of the high-position radial connecting rod and the low-position radial connecting rod, and the structure can divide the force of all radial connecting rods of the upper-layer net shell steel structure support crossing the top pressure ring into an upper layer and a lower layer to offset, so that the rigidity of the node is improved, the bending strength is increased, and the material is saved.
In a preferred embodiment, the upper half part of the inner and outer ring connecting beams 3 has a rectangular structure, and the lower half part of the inner and outer ring connecting beams 3 has a trapezoid structure; the middle part of the trapezoid structure of the inner ring beam and the outer ring beam 3 penetrates through the inner ring beam and the outer ring beam 3; a plurality of inner reinforcing plates 31 are provided in the inner and outer ring connecting beams 3.
In a preferred embodiment, the height difference between the inner ring beam 1 and the outer ring beam 2 is equal to the height difference between the high-level radial connecting rod of the upper layer net shell steel structure bracket and the low-level radial connecting rod of the upper layer net shell steel structure bracket.
In a preferred embodiment, the end of the connection port 4 is provided with a lap joint structure. The lap joint structure can adopt a step lap joint structure, a set lap joint plate or a wide-mouth sleeve joint lap joint structure and the like, and the setting of the lap joint structure facilitates temporary positioning before fixing, so that the construction efficiency is increased.
In a preferred embodiment, the number and positions of the inner and outer ring connecting beams 3 are matched with those of the high-position radial connecting rods of the upper-layer net shell steel structure bracket. Preferably, the number of the inner and outer ring connection beams 3 is 24, and the 24 inner and outer ring connection beams 3 are uniformly installed at the outer side of the inner ring beam 1. Preferably, the central pressure ring comprises 24 pressure ring subunits; the pressure ring subunit includes: an inner ring beam subunit, an outer ring beam subunit, an inner ring connecting beam 3 and a connecting port 4; one end of the inner and outer ring connecting beams 3 is fixedly arranged in the middle of the outer side of the inner ring beam subunit, and the connecting ports 4 are fixedly arranged at the other end of the inner and outer ring connecting beams 3; the outer ring beam subunit penetrates through the bottom of the middle part of the inner ring connecting beam 3, and the middle part of the outer ring beam subunit is fixedly connected with the inner ring connecting beam 3; the 24 inner ring beam subunits are connected into an inner ring beam 1; the 24 outer ring beam subunits are connected into an outer ring beam 2.
Example 2
As shown in fig. 5 to 7, the invention provides a construction method of a central pressure ring of a ring-shaped closed folded plate reticulated shell structure, which comprises the following steps:
s1, processing a pressure ring subunit in a factory, penetrating an outer ring beam subunit through the bottom of the middle part of an inner ring connecting beam 3, fixedly connecting the middle part of the outer ring beam subunit with the inner ring connecting beam 3, fixedly mounting one end of the inner ring connecting beam 3 at the middle part of the outer side of the inner ring beam subunit, and fixedly mounting a connecting port 4 at the other end of the inner ring connecting beam 3; splicing the 24 pressure ring subunits into equally divided pressure rings, wherein the equally divided pressure rings are trisection pressure rings or quarter pressure rings; dividing 8 pressure ring subunits or 6 pressure ring subunits into a group, and splicing the pressure ring subunits in the same group into equal-division pressure rings, wherein the inner ring beam subunits of the pressure ring subunits are connected with the inner ring beam subunits of the adjacent pressure ring subunits, and the outer ring beam subunits of the pressure ring subunits are connected with the outer ring beam subunits of the adjacent pressure ring subunits. The central pressure ring is divided into a plurality of pressure ring subunits with the same structure, and the pressure ring subunits are assembled into equal molecular units, so that the manufacturing process of the central pressure ring is simplified, and the construction speed is increased.
S2, conveying the spliced equal-division pressure rings to a construction site.
S3, assembling the support platform.
S4, hoisting the spliced equal-division pressure rings to a supporting platform, and splicing the equal-division pressure rings into a central pressure ring; when the equal-dividing pressure rings are assembled, the inner ring beam subunits of the equal-dividing pressure rings are connected with the inner ring beam subunits of the adjacent equal-dividing pressure rings, and the outer ring beam subunits of the equal-dividing pressure rings are connected with the outer ring beam subunits of the adjacent equal-dividing pressure rings.
S5, adjusting the central pressure ring into position.
S6, symmetrically hoisting the two groups of first upper-layer reticulated shell steel structure brackets 5 into position, fixedly connecting a first radial connecting rod 51 positioned at the high position of the first upper-layer reticulated shell steel structure brackets 5 with the connecting port 4, fixedly connecting a second radial connecting rod 52 positioned at the low position of the first upper-layer reticulated shell steel structure brackets 5 with the outer ring beam 2, and fixing the bottom of the first upper-layer reticulated shell steel structure brackets 5.
S7, symmetrically hoisting two groups of second upper-layer net shell steel structure supports 6 to the adjacent positions of the first upper-layer net shell steel structure supports 5, fixedly connecting a third radial connecting rod 61 positioned at the lower position of the second upper-layer net shell steel structure supports 6 with the outer ring beam 2, fixedly connecting a fourth radial connecting rod 62 positioned at the higher position of the second upper-layer net shell steel structure supports 6 with the connecting port 4, fixing the bottoms of the second upper-layer net shell steel structure supports 6, and connecting the adjacent first upper-layer net shell steel structure supports 5 with the second upper-layer net shell steel structure supports 6.
S8, repeating S7, and installing the first upper-layer net shell steel structure support 5 and the second upper-layer net shell steel structure support 6 at intervals until all the first upper-layer net shell steel structure support 5 and the second upper-layer net shell steel structure support 6 are installed.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention as filed.
Claims (10)
1. A central pressure ring for a circumferentially closed flap containment structure, comprising: an inner ring beam (1), an outer ring beam (2), an inner ring connecting beam (3) and a connecting port (4);
the inner ring beam (1) and the outer ring beam (2) are of circular ring structures, and the horizontal height of the outer ring beam (2) is lower than that of the inner ring beam (1);
the number of the inner ring connecting beams (3) is multiple, the inner ring connecting beams (3) are uniformly arranged on the outer side of the inner ring beam (1), and connecting ports (4) are fixedly arranged at the end parts of the inner ring connecting beams (3);
the outer ring beam (2) penetrates through the bottom of the middle part of the inner ring connecting beam (3), and the outer ring beam (2) is fixedly connected with the inner ring connecting beam (3);
the high-order radial connecting rod of the upper layer net shell steel structure support is fixedly connected with the connecting port (4), and the low-order radial connecting rod of the upper layer net shell steel structure support is fixedly connected with the outer ring beam (2).
2. The central pressure ring of the annular closed folded plate reticulated shell structure according to claim 1, characterized in that the upper half part of the inner and outer ring connecting beams (3) is of a rectangular structure, and the lower half part of the inner and outer ring connecting beams (3) is of a trapezoid structure;
the middle part of the trapezoid structure of the inner ring beam (2) and the outer ring connecting beam (3) penetrates through the inner ring connecting beam (3);
a plurality of inner reinforcing plates (31) are arranged in the inner and outer ring connecting beams (3).
3. The central pressure ring of the annular closed folded plate net shell structure according to claim 1, wherein the height difference of the inner ring beam (1) and the outer ring beam (2) is equal to the height difference of the high-position radial connecting rod of the upper net shell steel structure bracket and the low-position radial connecting rod of the upper net shell steel structure bracket.
4. Central pressure ring of a circumferentially closed flap web-shell structure according to claim 1, characterized in that the end of the connection port (4) is provided with a lap joint structure.
5. The central pressure ring of the annular closed folded plate reticulated shell structure as claimed in claim 1, wherein the number and the positions of the inner ring connecting beams (3) and the outer ring connecting beams are matched with the number and the positions of high-order radial connecting rods of the upper-layer reticulated shell steel structure support.
6. The central pressure ring of the circumferentially closed folded web shell structure according to claim 5, characterized in that the number of the inner and outer ring connection beams (3) is 24, and that 24 of the inner and outer ring connection beams (3) are uniformly mounted on the outer side of the inner ring beam (1).
7. The central pressure ring of the circumferentially closed flap web shell structure of claim 1, wherein the central pressure ring comprises 24 pressure ring subunits;
the pressure ring subunit comprises: an inner ring beam subunit, an outer ring beam subunit, an inner ring connecting beam (3) and an outer ring connecting beam (4);
one end of the inner ring connecting beam (3) is fixedly arranged in the middle of the outer side of the inner ring beam subunit, and the connecting port (4) is fixedly arranged at the other end of the inner ring connecting beam (3);
the outer ring beam subunit penetrates through the bottom of the middle part of the inner ring connecting beam (3), and the middle part of the outer ring beam subunit is fixedly connected with the inner ring connecting beam (3);
the 24 inner ring beam subunits are connected into an inner ring beam (1);
the 24 outer ring beam subunits are connected into an outer ring beam (2).
8. The construction method of the central pressure ring of the annular closed folded plate reticulated shell structure is characterized by comprising the following steps of:
step 1, processing pressure ring subunits in a factory, and splicing the 24 pressure ring subunits into equally divided pressure rings, wherein the equally divided pressure rings are trisection pressure rings or quarter pressure rings;
step 2, conveying the spliced equal-division pressure rings to a construction site;
step 3, assembling a supporting platform;
step 4, hoisting the spliced equal-divided pressure rings to a supporting platform, and splicing the equal-divided pressure rings into a central pressure ring;
step 5, adjusting the central pressure ring into position;
step 6, symmetrically hoisting two groups of first upper layer net shell steel structure supports (5) into position, fixedly connecting a first radial connecting rod (51) positioned at a high position of the first upper layer net shell steel structure supports (5) with a connecting port (4), fixedly connecting a second radial connecting rod (52) positioned at a low position of the first upper layer net shell steel structure supports (5) with an outer ring beam (2), and fixing the bottom of the first upper layer net shell steel structure supports (5);
step 7, symmetrically hoisting two groups of second upper layer net shell steel structure supports (6) to adjacent positions of the first upper layer net shell steel structure supports (5), fixedly connecting a third radial connecting rod (61) positioned at the lower position of the second upper layer net shell steel structure supports (6) with the outer ring beam (2), fixedly connecting a fourth radial connecting rod (62) positioned at the upper position of the second upper layer net shell steel structure supports (6) with the connecting port (4), fixing the bottoms of the second upper layer net shell steel structure supports (6), and connecting the adjacent first upper layer net shell steel structure supports (5) with the second upper layer net shell steel structure supports (6);
and 8, repeating the step 7, and installing the first upper-layer net shell steel structure bracket (5) and the second upper-layer net shell steel structure bracket (6) at intervals until all the first upper-layer net shell steel structure brackets (5) and the second upper-layer net shell steel structure brackets (6) are installed.
9. The construction method according to claim 8, wherein in step 1, the processing of the pressure ring subunit at the factory comprises the steps of:
penetrating the outer ring beam subunit through the bottom of the middle part of the inner ring connecting beam (3), and fixedly connecting the middle part of the outer ring beam subunit with the inner ring connecting beam (3);
one end of an inner ring connecting beam (3) is fixedly arranged in the middle of the outer side of the inner ring beam subunit;
the connecting port (4) is fixedly arranged at the other end of the inner ring and outer ring connecting beam (3).
10. The construction method according to claim 8, wherein in step 1, the splicing of the 24 pressure ring subunits into the equally divided pressure ring comprises the steps of:
grouping 8 pressure ring subunits or 6 pressure ring subunits into a group;
and splicing the pressure ring subunits in the same group into equal-division pressure rings, wherein the inner ring beam subunits of the pressure ring subunits are connected with the inner ring beam subunits of the adjacent pressure ring subunits, and the outer ring beam subunits of the pressure ring subunits are connected with the outer ring beam subunits of the adjacent pressure ring subunits.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410063211.3A CN117587929B (en) | 2024-01-17 | 2024-01-17 | Center pressure ring of annular closed folded plate reticulated shell structure and construction method thereof |
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| CN202410063211.3A CN117587929B (en) | 2024-01-17 | 2024-01-17 | Center pressure ring of annular closed folded plate reticulated shell structure and construction method thereof |
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| CN204386005U (en) * | 2014-12-26 | 2015-06-10 | 江苏沪宁钢机股份有限公司 | A kind of indent top cover steel structure |
| CN111877773A (en) * | 2020-08-19 | 2020-11-03 | 中冶建工集团重庆钢结构有限公司 | Installation method of large-span annular pressure ring single-layer grid steel roof |
| CN112144725A (en) * | 2020-09-16 | 2020-12-29 | 北京市建筑工程研究院有限责任公司 | Cable dome structure with limited installation space and forming method thereof |
| US20220325519A1 (en) * | 2020-11-27 | 2022-10-13 | China Construction Third Bureau First Engineering Co., Ltd. | Installation tool and method for spherical latticed shell structure |
| WO2022253211A1 (en) * | 2021-06-04 | 2022-12-08 | 中国建筑第四工程局有限公司 | Spatial vertical rotation construction method for steel structure roof of large venue |
| CN114703970A (en) * | 2022-04-08 | 2022-07-05 | 上海建工一建集团有限公司 | Dicyclo cable large-span steel construction |
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| CN117587929B (en) | 2024-03-22 |
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