CN115404991A - Large-span inflatable membrane structure - Google Patents
Large-span inflatable membrane structure Download PDFInfo
- Publication number
- CN115404991A CN115404991A CN202211259341.1A CN202211259341A CN115404991A CN 115404991 A CN115404991 A CN 115404991A CN 202211259341 A CN202211259341 A CN 202211259341A CN 115404991 A CN115404991 A CN 115404991A
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- film
- membrane
- wall body
- air
- supporting wall
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- 239000012528 membrane Substances 0.000 title claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention specifically discloses a large-span inflatable membrane structure, belongs to the technical field of air membrane supporting structures, and solves the technical problems that an air membrane building is easy to collapse when the air pressure in an inflatable membrane chamber is too small, the surface displacement of an inflatable membrane is too large when the external load is too large, and a cable net is easy to break, and the specific technical scheme is as follows: including first support wall body and second support wall body, first dress membrane ring roof beam has been arranged at first support wall body's top, second dress membrane ring roof beam has been arranged at second support wall body's top, through top air-supported membrane between first dress membrane ring roof beam and the second dress membrane ring roof beam, the cable net structure, lower floor's inflatable membrane links to each other, wind towers have been arranged to the both sides equipartition of air film building, link to each other through the crossbeam between the wind tower of both sides, a plurality of hoist cable connecting pieces have been arranged in the cable net structure, the hoist cable connecting piece passes through wire rope and links to each other with the crossbeam, this kind of connection structure can improve the bearing and pulling strength of cable net structure, the structural stability of reinforcing top air-supported membrane and lower floor's inflatable membrane, easy dismounting, the installation flow has been retrencied, the installation technology has been simplified.
Description
Technical Field
The invention belongs to the technical field of air film supporting structures, and particularly relates to a large-span double-layer inflatable film structure with flexible cable connection based on an offshore wind tower.
Background
The air film structure is a novel building space structure, and various loads of a roof are borne by a flexible structure system, wherein the loads are mainly constant loads, live loads, wind loads and snow loads. The snow load is divided into uniformly distributed snow load and local snow load, and particularly the local snow load is particularly unfavorable for the inflatable membrane structure. In addition, the inflatable membrane structure is very sensitive to wind load, the spherical roof surface belongs to a three-dimensional curved surface, and the wind pressure on the surface is closely related to the Reynolds number, the surface roughness, the wind speed profile and the like of the inflatable membrane structure. Wind is a main factor of membrane structure damage, under the action of wind pressure, the phenomenon of local stress relaxation can occur due to overlarge displacement of an air membrane, and the nonlinear calculation is difficult to converge through calculation and analysis.
In the prior art, the larger the span of the air film is, the larger the axial force at the joint of the air film steel cable is, especially under the action of wind load and snow load, the axial force of the steel cable net at the position of a gable wall and a ridge part becomes very large, and the phenomenon that a single steel cable is broken due to overlarge stress easily occurs. Because the single point is stressed too much, the air film displacement is too large, and the air film is easy to generate the phenomenon of local stress relaxation and deformation, and the stress requirement of the large-span air film is difficult to meet.
Disclosure of Invention
In order to solve the technical problems that cable nets on the surfaces of inflatable membranes are easy to break and air membrane buildings are easy to collapse when the air pressure in an inflatable membrane chamber is too high, the invention provides a large-span double-layer inflatable membrane structure with flexible cable connection, and the whole stress performance and the use safety of the inflatable membrane structure are improved by connecting steel wire ropes with cable net structure nodes on the surfaces of the inflatable membranes.
In order to realize the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a membrane structure is aerifyd to large-span, includes first support wall body and second support wall body, and first support wall body is fixed and is supported subaerially at the venue, and the second supports the wall body and fixes and support subaerially at the venue, and first support wall body and second support wall body parallel arrangement have arranged first dress membrane ring roof beam at the top of first support wall body, and second dress membrane ring roof beam has been arranged at the top that the second supported the wall body.
The first film loading ring beam is connected with the second film loading ring beam through the top air bearing film, and in order to improve the stress performance of the top air bearing film, the top air bearing film is prevented from being fixed by a crossed steel cable net, and the oblique orthogonal steel cable net is adopted to bear the surface stress of the air film. In order to avoid the single steel cable from being broken due to overlarge stress, the upper part of the top air-supported film is provided with the supporting ribbed plate, the supporting ribbed plate is connected by a plurality of sections of steel cables, and the steel cables are used for hoisting the connecting parts, so that the steel cables bear part of the surface tension of the air film and cannot be broken due to the overlarge stress of the single steel cable.
The first film-loading ring beam is connected with the second film-loading ring beam through a lower layer inflatable film, and the lower layer inflatable film is arranged at the bottom of the top air bearing film.
Each piece of membrane cloth of the top air bearing membrane is connected with the lower layer of the inflatable membrane through a bolt.
The first film loading ring beam is connected with the second film loading ring beam through a cable net structure, the cable net structure is arranged between the top air bearing film and the lower layer inflatable film, and the cable net structure can strengthen the load bearing capacity of the top air bearing film.
A first wind tower is arranged on the outer side of the first supporting wall, a second wind tower is arranged on the outer side of the second supporting wall, and the first wind tower is connected with the second wind tower through a cross beam. The first wind tower and the second wind tower fully utilize port wind resources, the wind towers are taken as a part of the whole building, on one hand, wind load is buffered, on the other hand, the wind load is utilized to generate electricity to generate electric energy, and power is supplied to equipment such as a blower.
A plurality of sling connecting pieces are arranged in the cable net structure and are connected with the cross beam through steel wire ropes, and the connecting structure can improve the tensile strength of the cable net structure and enhance the structural stability of the top air bearing film and the lower layer air inflation film.
And a plurality of air blowers are arranged at the bottom of the second supporting wall body, air outlets of the air blowers are communicated with the inside of the air film structure, and air is supplied to the inside of the air film building through the air blowers.
The sling connecting piece comprises an inner hanging piece, a square clamping groove is formed in the middle of the inner hanging piece, a pin shaft is arranged in the square clamping groove, one end of a steel wire rope is connected with the pin shaft, the other end of the steel wire rope is connected with the cross beam, a cable net structure is hung on the cross beam through the steel wire rope, the steel wire rope can also hang the air film under the condition that the pressure in the air film is insufficient, the air film collapse is avoided, and the safety of the air film building is greatly increased.
The adjacent inner hanging pieces are connected through slings, and a plurality of sling connecting pieces are connected with each other to form a cable net structure.
The sling is hinged on the inner hanging piece through a bolt, and four connecting nodes are arranged on each inner hanging piece.
The top air bearing film is provided with a plurality of penetrating holes, the penetrating holes are sealed through a cylindrical sealing element, the cylindrical sealing element and an inner hanging element arranged in the cylindrical sealing element are concentrically arranged, and a steel wire rope penetrates through the cylindrical sealing element and then is connected with the cross beam.
The internal air pressure of the top air bearing film is at least 250-300Pa higher than the external air pressure.
Compared with the prior art, the invention has the following specific beneficial effects:
1. according to the invention, the steel wire rope is connected with the cable net structure, and the steel wire rope lifts the top air bearing film and the lower inflatable film, so that the surface stress of the air film is dispersed, and the rigidity and stability of the air film building are enhanced.
2. According to the invention, the cable net structure is hoisted by adopting the steel wire rope, and the steel wire rope can hoist the whole air film structure under the condition of insufficient internal pressure of the air film, so that the air film structure cannot collapse, and the use safety of the air film building is greatly improved.
3. The invention adopts the cable net structure to connect with the original air film structure, has strong operability and convenient disassembly and assembly, simplifies the installation process and simplifies the installation process.
4. According to the invention, the cable net structure and the steel wire rope are additionally arranged, the cable net structure disperses the surface stress of the air film, the steel wire rope increases the bearing capacity in the vertical direction, and the cable net structure and the steel wire rope are stressed simultaneously, so that the span of the air film can be effectively increased.
5. According to the invention, the wind towers are additionally arranged on two sides of the air film structure, the wind tower structure can be used for reducing the material consumption of the supporting rib plate steel structure, the wind tower can also buffer a part of wind load, and the electric energy generated by wind power is used for supplying energy to the inside of the top air bearing film.
Drawings
Fig. 1 is a schematic front structural view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic view of the construction of the sling attachment member of fig. 1.
In the figure, 1 is a first supporting wall body, 2 is a second supporting wall body, 3 is a first film-loading ring beam, 4 is a second film-loading ring beam, 5 is a top air bearing film, 6 is a lower layer inflating film, 7 is a cable net structure, 8 is a first wind tower, 9 is a second wind tower, 10 is a cross beam, 11 is a blower, 12 is an inner hanging piece, 13 is a square clamping groove, 14 is a pin shaft, 15 is a steel wire rope, 16 is a sling, 17 is a cylindrical sealing piece, and 18 is a sling connecting piece.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1 to 3, a large-span inflatable membrane structure comprises a first supporting wall 1 and a second supporting wall 2, wherein the first supporting wall 1 is fixed on the ground of a venue support, the second supporting wall 2 is fixed on the ground of the venue support, the first supporting wall 1 and the second supporting wall 2 are arranged in parallel, a first membrane installing ring beam 3 is arranged on the top of the first supporting wall 1, and a second membrane installing ring beam 4 is arranged on the top of the second supporting wall 2.
One end of the top air bearing film 5 is supported on the first film loading ring beam 3, the other end of the top air bearing film 5 is supported on the second film loading ring beam 4, in order to improve the stress performance of the top air bearing film 5, the surface of the top air bearing film 5 is fixed by a crossed steel cable net, and the oblique orthogonal steel cable net is adopted to bear the surface stress of the air film. In order to avoid the single steel cable from being broken due to overlarge stress, the upper part of the top air bearing film 5 is provided with a support ribbed plate, the support ribbed plate is connected by a plurality of sections of steel cables, and the steel cables are used for hoisting the connecting parts, so that the steel cables bear part of the surface tension of the air film and cannot be broken due to the overlarge stress of the single steel cable. The support columns are hollowed and welded above the support rib plates, and workers can directly climb up the support rib plates to install the steel wire ropes 15.
One end of the lower layer inflatable membrane 6 is supported on the first membrane installing ring beam 3, the other end of the lower layer inflatable membrane 6 is supported on the second membrane installing ring beam 4, and the lower layer inflatable membrane 6 is arranged below the top air bearing membrane 5.
Each piece of membrane cloth of the top air-supported membrane 5 is connected with the lower layer inflatable membrane 6 through a bolt.
The first film-loading ring beam 3 is connected with the second film-loading ring beam 4 through a cable net structure 7, the cable net structure 7 is arranged between the top air-bearing film 5 and the lower layer air-bearing film 6, the film-cable net-film multilayer structure is adopted to lift the surface of the air film, and the cable net structure 7 can strengthen the load bearing capacity of the top air-bearing film 5.
A plurality of sling connecting pieces 18 are arranged in the cable net structure 7, the sling connecting pieces 18 are connected with the cross beam 10 through steel wire ropes 15, the steel wire ropes 15 are arranged in parallel, and the connecting structure can improve the tensile strength of the cable net structure 7. Under the effect of wire rope 15, under the unstable condition of atmospheric pressure appears in the air film, wire rope 15 supports the rib plate structure and can pull up air film surface cable for the inside pressure of air film can enlarge, improves the atress performance, strengthens the structural stability of top air bearing membrane 5 and lower floor inflatable membrane 6.
The bottom of the second supporting wall 2 is provided with a plurality of blowers 11, the air outlet of the blower 11 is communicated with the inside of the air film structure, and the blower 11 blows air to the inside of the air film structure.
The sling connecting piece 18 comprises an inner hanging piece 12, a square clamping groove 13 is formed in the middle of the inner hanging piece 12, a pin shaft 14 is arranged in the square clamping groove 13, one end of a steel wire rope 15 is connected with the pin shaft 14, the other end of the steel wire rope 15 is connected with the cross beam 10, the cable net structure 7 is hung on the cross beam 10 through the steel wire rope 15, the steel wire rope 15 can also hang the air film under the condition of insufficient pressure in the air film, the air film cannot collapse, and the use safety of the air film building is greatly improved.
The adjacent inner hanging parts 12 are connected through the sling 16, and a plurality of sling connecting parts 18 are connected with each other to form the cable net structure 7.
The slings 16 are bolted to the inner suspension elements 12 and four attachment nodes are provided on each inner suspension element 12.
The top air bearing film 5 is provided with a plurality of penetrating holes, the penetrating holes are sealed through a cylindrical sealing element 17, the cylindrical sealing element 17 and an inner hanging element 12 arranged in the cylindrical sealing element 17 are concentrically arranged, and a steel wire rope 15 penetrates through the cylindrical sealing element 17 and then is connected with the cross beam 10.
The internal air pressure of the top air bearing membrane 5 is at least 250-300Pa higher than the external air pressure.
In order to further improve the sealing performance of the indoor space of the air film building venue, the corners of the top air bearing film 5 are fixedly connected to the first film-loading ring beam 3 and the second film-loading ring beam 4 through the pressing plate, the outer sealing strip and the inner sealing strip by film-pressing screws.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included therein.
Claims (4)
1. The large-span inflatable membrane structure is characterized by comprising a first supporting wall body (1) and a second supporting wall body (2), wherein the first supporting wall body (1) and the second supporting wall body (2) are arranged in parallel, a first membrane installing ring beam (3) is arranged at the top of the first supporting wall body (1), and a second membrane installing ring beam (4) is arranged at the top of the second supporting wall body (2);
the first film-loading ring beam (3) is connected with the second film-loading ring beam (4) through a top air-supported film (5);
the first film-loading ring beam (3) is connected with the second film-loading ring beam (4) through a lower-layer inflatable film (6), and the lower-layer inflatable film (6) is arranged below the top air bearing film (5);
the first film-loading ring beam (3) is connected with the second film-loading ring beam (4) through a cable net structure (7), and the cable net structure (7) is arranged between the top air bearing film (5) and the lower layer air inflation film (6);
a first wind tower (8) is arranged on the outer side of the first supporting wall body (1), a second wind tower (9) is arranged on the outer side of the second supporting wall body (2), and the first wind tower (8) is connected with the second wind tower (9) through a cross beam (10);
a plurality of sling connecting pieces (18) are arranged in the cable net structure (7), and the sling connecting pieces (18) are connected with the cross beam (10) through steel wire ropes (15);
and a plurality of air blowers (11) are arranged at the bottom of the second supporting wall body (2).
2. The large-span inflatable membrane structure according to claim 1, wherein the sling attachment member (18) comprises an inner hanging member (12), a square clamping groove (13) is formed in the middle of the inner hanging member (12), a pin (14) is installed in the square clamping groove (13), one end of a steel wire rope (15) is connected with the pin (14), and the other end of the steel wire rope (15) is connected with the cross beam (10);
the adjacent inner hanging pieces (12) are connected through slings (16), and a plurality of sling connecting pieces (18) are connected with each other to form a cable net structure (7);
the sling (16) is hinged to the inner hanging piece (12) by means of a bolt.
3. A large span inflatable membrane structure according to claim 2, wherein the top inflatable membrane (5) is provided with a plurality of through holes, the through holes are sealed by a cylindrical sealing member (17), and the cylindrical sealing member (17) is concentrically arranged with the inner hanger member (12) arranged in the cylindrical sealing member (17).
4. A large span inflatable membrane structure according to claim 1, wherein the internal air pressure of the top air bearing membrane (5) is at least 250-300Pa higher than the external air pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259341.1A CN115404991B (en) | 2022-10-14 | 2022-10-14 | Large-span inflation film structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259341.1A CN115404991B (en) | 2022-10-14 | 2022-10-14 | Large-span inflation film structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115404991A true CN115404991A (en) | 2022-11-29 |
| CN115404991B CN115404991B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211259341.1A Active CN115404991B (en) | 2022-10-14 | 2022-10-14 | Large-span inflation film structure |
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| Country | Link |
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| CN (1) | CN115404991B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5522596A (en) * | 1995-02-06 | 1996-09-04 | Robert R. Simens | Inflatable roof support systems |
| CN103015529A (en) * | 2012-12-25 | 2013-04-03 | 上海交通大学 | Air-inflated membrane structure with crossing cable net arranged along geodesic line |
| CN105484358A (en) * | 2016-01-14 | 2016-04-13 | 深圳市中德膜结构有限公司 | Large-span membrane structure roof |
| CN209620752U (en) * | 2018-12-05 | 2019-11-12 | 湖南巨建膜结构技术有限公司 | A kind of air film structure with wirerope system |
| CN112709334A (en) * | 2021-01-26 | 2021-04-27 | 郑舟超 | Air-supported membrane hollow house |
| CN213774763U (en) * | 2020-10-29 | 2021-07-23 | 青岛艾尔兄弟科技有限公司 | Reinforced structure of air film building |
| CN214696079U (en) * | 2021-05-14 | 2021-11-12 | 中成空间（深圳）智能技术有限公司 | Cross steel cable net structure and large-span air film with same |
-
2022
- 2022-10-14 CN CN202211259341.1A patent/CN115404991B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5522596A (en) * | 1995-02-06 | 1996-09-04 | Robert R. Simens | Inflatable roof support systems |
| CN103015529A (en) * | 2012-12-25 | 2013-04-03 | 上海交通大学 | Air-inflated membrane structure with crossing cable net arranged along geodesic line |
| CN105484358A (en) * | 2016-01-14 | 2016-04-13 | 深圳市中德膜结构有限公司 | Large-span membrane structure roof |
| CN209620752U (en) * | 2018-12-05 | 2019-11-12 | 湖南巨建膜结构技术有限公司 | A kind of air film structure with wirerope system |
| CN213774763U (en) * | 2020-10-29 | 2021-07-23 | 青岛艾尔兄弟科技有限公司 | Reinforced structure of air film building |
| CN112709334A (en) * | 2021-01-26 | 2021-04-27 | 郑舟超 | Air-supported membrane hollow house |
| CN214696079U (en) * | 2021-05-14 | 2021-11-12 | 中成空间（深圳）智能技术有限公司 | Cross steel cable net structure and large-span air film with same |
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| Publication number | Publication date |
|---|---|
| CN115404991B (en) | 2024-04-09 |
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