CN114164979A - Assembled dome-shaped steel structure - Google Patents
Assembled dome-shaped steel structure Download PDFInfo
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- CN114164979A CN114164979A CN202111497895.0A CN202111497895A CN114164979A CN 114164979 A CN114164979 A CN 114164979A CN 202111497895 A CN202111497895 A CN 202111497895A CN 114164979 A CN114164979 A CN 114164979A
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- pipe body
- ring pipe
- rib plate
- steel structure
- shaped steel
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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
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses an assembled dome-shaped steel structure which comprises a top node assembly, a bottom support ring and a plurality of rib plates, wherein the plurality of rib plates are uniformly and circumferentially arranged between the top node assembly and the bottom support ring; the invention ensures that the structural components are not connected by any bolt or welding, is convenient to install and disassemble, has low construction difficulty and fast construction progress and reduces the construction cost; the structural strength is high, and the bearing capacity is strong.
Description
Technical Field
The invention relates to an assembled dome-shaped steel structure, and belongs to the technical field of assembled steel structures.
Background
The steel structure is a structure composed of steel materials and is one of the main building structure types; the steel structure building mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted, and all the members or parts are usually connected by welding seams, bolts or rivets; because of its light dead weight and simple construction, it is widely used in the fields of large-scale factory buildings, venues, super high-rise buildings, etc.; the assembled steel structure becomes a hotspot direction of the development of the construction industry due to the advantages of light dead weight, high strength, good earthquake resistance, rapid construction, short period, reusability, less pollution and the like, particularly has the characteristic of modularization, better meets the requirement of industrial development, and has good application prospect and market potential; the roof of a plurality of small steel structure buildings at present also adopts a dome-shaped structure, the dome-shaped structures are mostly formed by splicing steel beams, when the roof is installed, the steel beams are usually connected with the steel beams by bolts or welding, wherein the welding connection mode has high construction difficulty and slow construction progress, and is not beneficial to later-stage disassembly; the bolt connection mode needs to arrange bolt holes on the steel beam and the connected parts, the stress of the steel beam is weakened by the bolt holes, and the construction time and the construction difficulty are increased by arranging the bolt holes on the steel beam and connecting the bolts in the later period of installation, so that the construction cost is high, and the construction process is very slow; meanwhile, the dome-shaped structure formed by splicing the steel beams has more nodes and poorer bearing capacity.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an assembled dome-shaped steel structure, which is convenient to mount and dismount, low in construction difficulty, quick in construction progress and capable of reducing construction cost because structural components are not connected by bolts or welding; the structural strength is high, and the bearing capacity is strong.
In order to achieve the above object, the present invention adopts the following technical solutions:
an assembled dome-shaped steel structure comprises a top node assembly, a bottom support ring and a plurality of rib plates, wherein the plurality of rib plates are uniformly and circumferentially arranged between the top node assembly and the bottom support ring, the rib plates are of arc structures, the plate surfaces of the rib plates are arranged in the vertical direction, the top ends of the rib plates are clamped with the top node assembly, and the bottom ends of the rib plates are clamped with the bottom support ring;
the top node assembly comprises a positioning plate, an inner ring pipe body and an outer ring pipe body which are concentrically arranged are arranged at the top of the positioning plate, a notch is formed in the top edge of the outer ring pipe body, a first clamping groove matched and clamped with the notch is formed in the bottom edge of the top end of the rib plate, the top end of the rib plate is clamped at the notch of the outer ring pipe body through the first clamping groove, and the top edge of the top end of the rib plate is not higher than the top edge of the outer ring pipe body; a bending part is formed at the top end of the rib plate positioned on the inner side of the outer ring pipe body, a positioning pipe is arranged between the bending part and the inner ring pipe body, and the surface of the bending part at the top end of the rib plate, which faces one side of the inner ring pipe body, is in contact with the outer circumferential surface of the positioning pipe; the cross section of the bottom support ring is circular, a second clamping groove matched and clamped with the bottom support ring is formed in the bottom edge of the bottom end of the rib plate, and the bottom end of the rib plate is clamped on the bottom support ring through the second clamping groove.
As a further preferable mode of the invention, a cushion block is arranged between the surface of one side of the bent part at the top end of the rib plate, which faces the outer ring pipe body, and the inner circumferential surface of the outer ring pipe body; the cushion block is used for filling a gap between the bending part at the top end of the rib plate and the outer ring pipe body, and deformation of the bending part at the top end of the rib plate is avoided.
As a further optimization of the invention, a limiting block is arranged on the surface of one side of the bent part at the top end of the rib plate, which faces the outer ring pipe body, and a limiting groove correspondingly matched with the limiting block is arranged on the cushion block; the position of the bending part at the top end of the rib plate is limited.
As a further preferable mode of the present invention, the stopper and the pad both extend in the height direction of the outer annular tube body.
As a further preferable aspect of the present invention, the cross-sectional shape of the stopper is any one of a triangle, a rectangle, and a trapezoid.
As a further preferable mode of the invention, the top node assembly further comprises a cover body, the top of the cover body is provided with a handle, the bottom of the cover body is circumferentially provided with a plurality of L-shaped rod bodies, the top ends of the L-shaped rod bodies are connected with the bottom of the cover body, and the bottom ends of the L-shaped rod bodies are bent outwards by 90 degrees to form transverse arms; a plurality of longitudinal sliding grooves which are correspondingly matched with the plurality of L-shaped rod bodies are formed in the top edge of the inner ring pipe body, the longitudinal sliding grooves extend along the axial direction of the inner ring pipe body, and a transverse sliding groove is formed in the bottom of each longitudinal sliding groove and extends along the circumferential direction of the inner ring pipe body; a transverse arm at the bottom end of the L-shaped rod body slides to the bottom of the longitudinal sliding groove along the longitudinal sliding groove and then slides to the transverse sliding groove along the circumferential direction; after the transverse arm at the bottom end of the L-shaped rod body slides into the transverse sliding groove, the transverse arm at the bottom end of the L-shaped rod body just hooks the inner ring pipe body, so that the cover body is connected with the inner ring pipe body.
As a further preferable aspect of the present invention, a reinforcing rib plate is provided between the inner circumferential surface of the inner ring pipe body and the positioning plate; the connection strength between the inner ring pipe body and the positioning plate is improved.
As a further preferable mode of the invention, the surface of one side, facing the inner ring pipe body, of the bent part at the top end of the rib plate is in close fit contact with the outer circumferential surface of the positioning pipe; the limiting effect of the positioning tube on the bending part is improved.
As a further preferable mode of the invention, a plurality of curved parts are formed on the positioning pipe, the curved parts extend along the axial direction of the positioning pipe, and the curved parts are positioned between the curved parts at the top ends of two adjacent rib plates; the bent arc part can limit the bent parts at the top ends of two adjacent rib plates, and can also play a certain role in damping and energy consumption.
As a further preference of the present invention, the positioning tube is a shape memory alloy material; the positioning pipe made of the shape memory alloy material has certain deformability, under the action of small earthquake load, the force applied to the positioning pipe by the bending part at the top end of the rib plate can realize energy consumption, and the positioning pipe can recover the original shape after the earthquake.
The invention has the advantages that:
when the steel pipe is installed, the top end of the rib plate is clamped at the notch of the outer ring pipe body through the first clamping groove, and the bottom end of the rib plate is clamped on the bottom support ring through the second clamping groove; the bottom support ring is supported by the outer structure; at the moment, a limiting block arranged on the surface of one side, facing the outer ring pipe body, of the bending part at the top end of the rib plate is positioned in a limiting groove of the cushion block; then, a positioning pipe is placed, and the surface of the bent part at the top end of the rib plate, which faces one side of the inner ring pipe body, is in contact with or close fit with the outer circumferential surface of the positioning pipe; finally, the cover body is connected with the inner ring pipe body; the bottoms of the arc-shaped structural rib plates which are uniformly and circumferentially arranged form a dome-shaped structure, so that the framework assembly of the dome-shaped steel structure is completed; subsequent decoration and covering can be carried out on the rib plate; in the dome-shaped steel structure, the force at the top end of the rib plate is transmitted to the outer ring pipe body and the positioning plate, the force at the bottom end of the rib plate is transmitted to the bottom support ring, and the mutual acting force among the structural components enables the structural components to be stably connected with each other, so that the structural components are not connected with each other by any bolt or welding, the mounting and dismounting are convenient, the construction difficulty is low, the construction progress is fast, and the construction cost is reduced; the plate surface of the rib plate is arranged along the vertical direction, so that the rib plate has better shearing resistance, and the overall structural strength and the bearing capacity are improved.
Drawings
FIG. 1 is a schematic top view of a first embodiment of the present invention;
FIG. 2 is a schematic top view of the cover removed according to the first embodiment of the present invention;
FIG. 3 is a schematic top view of a top node assembly according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a top node assembly according to one embodiment of the present invention;
FIG. 5 is a schematic structural view of a rib plate according to an embodiment of the present invention;
FIG. 6 is a schematic view of a top end structure of a rib plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of a notch at the top edge of the outer tube according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a top end of a rib plate to be connected with an outer ring pipe body according to an embodiment of the present invention;
FIG. 9 is a schematic view of a spacer according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a cover according to an embodiment of the present invention;
FIG. 11 is a schematic view of the structure of the longitudinal sliding groove and the transverse sliding groove of the inner ring tube body according to the embodiment of the present invention;
FIG. 12 is a schematic view of the position of an L-shaped rod sliding in the longitudinal and transverse sliding grooves according to an embodiment of the present invention;
FIG. 13 is a schematic top view of a cover according to an embodiment of the present invention;
FIG. 14 is a schematic view of a positioning tube according to an embodiment of the present invention;
FIG. 15 is a schematic top view of a second top node assembly according to an embodiment of the present invention;
FIG. 16 is a schematic structural view of a second positioning tube according to an embodiment of the present invention;
the meaning of the reference symbols in the figures:
1-bottom support ring, 2-rib plate, 3-positioning plate, 4-inner ring tube, 5-outer ring tube, 6-notch, 7-first clamping groove, 8-positioning tube, 9-second clamping groove, 10-cushion block, 11-limiting block, 12-limiting groove, 13-cover body, 14-handle, 15-switch rotation direction mark, 16-L-shaped rod body, 17-longitudinal sliding groove, 18-transverse sliding groove, 19-reinforcing rib plate and 20-curved arc part.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
Example one
As shown in fig. 1 to 14, the present embodiment is an assembled dome-shaped steel structure, which includes a top node assembly, a bottom support ring 1, and a plurality of rib plates 2, wherein the plurality of rib plates 2 are uniformly and circumferentially arranged between the top node assembly and the bottom support ring 1, the rib plates 2 are of an arc-shaped structure, the plate surfaces of the rib plates 2 are arranged in a vertical direction, the top ends of the rib plates 2 are connected with the top node assembly in a clamping manner, and the bottom ends of the rib plates 2 are connected with the bottom support ring 1 in a clamping manner; the top node assembly comprises a positioning plate 3, an inner ring pipe body 4 and an outer ring pipe body 5 which are concentrically arranged are arranged at the top of the positioning plate 3, a notch 6 is formed at the top edge of the outer ring pipe body 5, a first clamping groove 7 matched and clamped with the notch 6 is formed at the bottom edge of the top end of the rib plate 2, the top end of the rib plate 2 is clamped at the notch 6 of the outer ring pipe body 5 through the first clamping groove 7, and the top edge of the top end of the rib plate 2 is not higher than the top edge of the outer ring pipe body 5; a bending part is formed at the top end of the rib plate 2 positioned on the inner side of the outer ring pipe body 5, a positioning pipe 8 is arranged between the bending part and the inner ring pipe body 4, and the surface of the bending part at the top end of the rib plate 2 facing one side of the inner ring pipe body 4 is in contact with the outer circumferential surface of the positioning pipe 8; the cross section shape of bottom support ring 1 is circular, and the bottom border of gusset 2 is formed with the second draw-in groove 9 with bottom support ring 1 cooperation joint, and the joint is passed through on bottom support ring 1 in the bottom of gusset 2 second draw-in groove 9.
In the embodiment, a cushion block 10 is arranged between the surface of one side of the bent part at the top end of the rib plate 2, which faces the outer ring pipe body 5, and the inner circumferential surface of the outer ring pipe body 5; the cushion block 10 is used for filling a gap between the bending part at the top end of the rib plate 2 and the outer ring pipe body 5, and the deformation of the bending part at the top end of the rib plate 2 is avoided.
In the embodiment, a limiting block 11 is arranged on the surface of one side of the bending part at the top end of the rib plate 2, which faces the outer ring pipe body 5, and a limiting groove 12 correspondingly matched with the limiting block 11 is arranged on the cushion block 10; the position of the bending part at the top end of the rib plate 2 is limited; the limiting block 11 and the cushion block 10 both extend along the height direction of the outer ring pipe body 5; the cross section of the limiting block 11 is trapezoidal; in practical application, the cross section of the limiting block 11 may be triangular or rectangular; the length of the limiting block 11 and the limiting groove 12 can also be smaller than that of the cushion block 10 and is positioned in the middle of the cushion block 10.
In this embodiment, the top node assembly further includes a cover 13, a handle 14 and a switch rotation direction indicator 15 are disposed on the top of the cover 13, a plurality of L-shaped rod bodies 16 are circumferentially disposed on the bottom of the cover 13, the top ends of the L-shaped rod bodies 16 are connected with the bottom of the cover 13, and the bottom ends of the L-shaped rod bodies 16 are bent outward by 90 degrees to form transverse arms; a plurality of longitudinal sliding grooves 17 correspondingly matched with the plurality of L-shaped rod bodies 16 are formed in the top edge of the inner ring pipe body 4, the longitudinal sliding grooves 17 extend along the axial direction of the inner ring pipe body 4, the bottom of the longitudinal sliding grooves 17 is provided with a transverse sliding groove 18, and the transverse sliding groove 18 extends along the circumferential direction of the inner ring pipe body 4; the transverse arm at the bottom end of the L-shaped rod body 16 slides to the bottom of the longitudinal sliding groove 17 along the longitudinal sliding groove 17 and then slides to the transverse sliding groove 18 in the circumferential direction; fig. 12 is a schematic position diagram of the L-shaped rod 16 sliding in the longitudinal sliding groove 17 and the transverse sliding groove 18, the dashed line in the diagram shows that the L-shaped rod 16 is the schematic position diagram of the L-shaped rod 16 sliding in the longitudinal sliding groove 17 and the transverse sliding groove 18, after the transverse arm at the bottom end of the L-shaped rod 16 slides into the transverse sliding groove 18, the transverse arm at the bottom end of the L-shaped rod 16 just hooks the inner ring tube 4, so that the cover 13 is connected with the inner ring tube 4; the diameter of the cover body 13 is larger than that of the outer ring pipe body 5; a reinforcing rib plate 19 is arranged between the inner circumferential surface of the inner ring pipe body 4 and the positioning plate 3; the connection strength between the inner ring pipe body 4 and the positioning plate 3 is improved.
Example two
As shown in fig. 15 and 16, and also referring to fig. 1, 2, 4 to 13, this embodiment is similar to the embodiment in structure, except that the surface of the top end bending portion of the rib plate 2 facing the inner ring tube body 4 in this embodiment is in tight-fitting contact with the outer circumferential surface of the positioning tube 8; the limiting effect of the positioning tube 8 on the bending part is improved; a plurality of bent arc parts 20 are formed on the positioning pipe 8, the bent arc parts 20 axially extend along the positioning pipe 8, and the bent arc parts 20 are positioned between the bent parts at the top ends of two adjacent rib plates 2; the bent arc part 20 can limit the bent parts at the top ends of two adjacent rib plates 2 and can play a certain role in damping and energy consumption; the positioning tube 8 is made of shape memory alloy material; the positioning pipe 8 made of the shape memory alloy material has certain deformability, under the action of small earthquake load, the force applied to the positioning pipe 8 by the bending part at the top end of the rib plate 2 can realize energy consumption, and the positioning pipe 8 can recover the original shape after the earthquake.
When the two embodiments are installed, firstly, the top end of the rib plate 2 is clamped at the notch 6 of the outer ring pipe body 5 through the first clamping groove 7, and the bottom end of the rib plate 2 is clamped on the bottom support ring 1 through the second clamping groove 9; the bottom support ring 1 is supported by an external structure; at the moment, a limiting block 11 arranged on the surface of one side, facing the outer ring pipe body 5, of the bending part at the top end of the rib plate 2 is positioned in a limiting groove 12 of the cushion block 10; then, a positioning pipe 8 is placed, and the surface of the bent part at the top end of the rib plate 2, which faces one side of the inner ring pipe body 4, is in contact with or in close fit contact with the outer circumferential surface of the positioning pipe 8; finally, the cover body 13 is connected with the inner ring pipe body 4; the bottoms of a plurality of arc-shaped structural rib plates 2 which are uniformly and circumferentially arranged form a dome-shaped structure, so that the framework assembly of the dome-shaped steel structure is completed; subsequent decoration and covering can be performed on the rib plate 2; in the dome-shaped steel structure, the force at the top end of the rib plate 2 is transmitted to the outer ring pipe body 5 and the positioning plate 3, the force at the bottom end of the rib plate 2 is transmitted to the bottom support ring 1, and the mutual acting force among the structural components ensures that the structural components are stably connected with each other, so that the structural components are not connected by any bolt or welding, the mounting and dismounting are convenient, the construction difficulty is low, the construction progress is fast, and the construction cost is reduced; the plate surface of the rib plate 2 is arranged along the vertical direction, so that the rib plate has better shearing resistance, and the overall structural strength and the bearing capacity are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "disposed" are to be construed broadly and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed unless otherwise explicitly stated or limited; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; the specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The foregoing shows and describes the general principles, principal features and advantages of the invention; it should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. The assembled dome-shaped steel structure is characterized by comprising a top node assembly, a bottom support ring and a plurality of rib plates, wherein the rib plates are uniformly and circumferentially arranged between the top node assembly and the bottom support ring, the rib plates are of arc structures, the plate surfaces of the rib plates are arranged along the vertical direction, the top ends of the rib plates are clamped with the top node assembly, and the bottom ends of the rib plates are clamped with the bottom support ring;
the top node assembly comprises a positioning plate, an inner ring pipe body and an outer ring pipe body which are concentrically arranged are arranged at the top of the positioning plate, a notch is formed in the top edge of the outer ring pipe body, a first clamping groove matched and clamped with the notch is formed in the bottom edge of the top end of the rib plate, the top end of the rib plate is clamped at the notch of the outer ring pipe body through the first clamping groove, and the top edge of the top end of the rib plate is not higher than the top edge of the outer ring pipe body; a bending part is formed at the top end of the rib plate positioned on the inner side of the outer ring pipe body, a positioning pipe is arranged between the bending part and the inner ring pipe body, and the surface of the bending part at the top end of the rib plate, which faces one side of the inner ring pipe body, is in contact with the outer circumferential surface of the positioning pipe; the cross section of the bottom support ring is circular, a second clamping groove matched and clamped with the bottom support ring is formed in the bottom edge of the bottom end of the rib plate, and the bottom end of the rib plate is clamped on the bottom support ring through the second clamping groove.
2. The assembled dome-shaped steel structure according to claim 1, wherein a cushion block is arranged between the surface of the bent part at the top end of the rib plate, which faces one side of the outer ring pipe body, and the inner circumferential surface of the outer ring pipe body.
3. The assembled dome-shaped steel structure according to claim 2, wherein a limiting block is arranged on the surface of the bent part at the top end of the rib plate, which faces one side of the outer ring pipe body, and a limiting groove correspondingly matched with the limiting block is arranged on the cushion block.
4. The fabricated dome-shaped steel structure of claim 3, wherein the stopper and the pad each extend in a height direction of the outer ring tube.
5. An assembled dome-shaped steel structure as claimed in claim 3 or 4, wherein the cross-sectional shape of the stopper is any one of triangular, rectangular or trapezoidal.
6. The assembled dome-shaped steel structure of claim 1, wherein the top node assembly further comprises a cover body, a handle is arranged at the top of the cover body, a plurality of L-shaped rods are circumferentially arranged at the bottom of the cover body, the top ends of the L-shaped rods are connected with the bottom of the cover body, and the bottom ends of the L-shaped rods are bent outwards by 90 degrees to form transverse arms; a plurality of longitudinal sliding grooves which are correspondingly matched with the plurality of L-shaped rod bodies are formed in the top edge of the inner ring pipe body, the longitudinal sliding grooves extend along the axial direction of the inner ring pipe body, and a transverse sliding groove is formed in the bottom of each longitudinal sliding groove and extends along the circumferential direction of the inner ring pipe body; the transverse arm at the bottom end of the L-shaped rod body slides to the bottom of the longitudinal sliding groove along the longitudinal sliding groove and then slides to the transverse sliding groove in the circumferential direction.
7. An assembled dome-shaped steel structure according to claim 6, wherein a reinforcing rib plate is arranged between the inner circumferential surface of the inner ring pipe body and the positioning plate.
8. The assembled dome-shaped steel structure according to claim 1, wherein the surface of the bent part at the top end of the rib plate, which faces one side of the inner ring pipe body, is in tight fit contact with the outer circumferential surface of the positioning pipe.
9. The assembled dome-shaped steel structure according to claim 1 or 8, wherein a plurality of curved portions are formed on the positioning pipe, the curved portions extend along the axial direction of the positioning pipe, and the curved portions are located between the curved portions at the top ends of two adjacent rib plates.
10. An assembled dome-shaped steel structure as claimed in claim 9, wherein said positioning tube is a shape memory alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111497895.0A CN114164979B (en) | 2021-12-09 | 2021-12-09 | Assembled dome-shaped steel structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111497895.0A CN114164979B (en) | 2021-12-09 | 2021-12-09 | Assembled dome-shaped steel structure |
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| CN114164979A true CN114164979A (en) | 2022-03-11 |
| CN114164979B CN114164979B (en) | 2023-03-24 |
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| Title |
|---|
| 杨轶: "斗拱式大跨度钢结构安装关键技术控制工艺", 《安装》 * |
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| Publication number | Publication date |
|---|---|
| CN114164979B (en) | 2023-03-24 |
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