CN115404991B - Large-span inflation film structure - Google Patents
Large-span inflation film structure Download PDFInfo
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- CN115404991B CN115404991B CN202211259341.1A CN202211259341A CN115404991B CN 115404991 B CN115404991 B CN 115404991B CN 202211259341 A CN202211259341 A CN 202211259341A CN 115404991 B CN115404991 B CN 115404991B
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- film
- membrane
- wall body
- air
- supporting wall
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- 239000012528 membrane Substances 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 14
- 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
- 230000000149 penetrating effect Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 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
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
-
- 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 discloses a large-span inflatable membrane structure, belongs to the technical field of air membrane supporting structures, and solves the technical problems that when the indoor air pressure of an inflatable membrane is too small, an air membrane building is easy to collapse, the surface displacement of the inflatable membrane is too large due to too large external load, 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, link to each other through top air bearing membrane between first dress membrane ring roof beam and the second dress membrane ring roof beam, cable net structure, lower floor's inflation film, wind towers have all been arranged to the both sides of air film building, link to each other through the crossbeam between the wind towers 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 tensile strength of cable net structure, strengthen the structural stability of top air bearing membrane and lower floor's inflation film, easy dismounting has retrencied the installation flow, 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 connection of cables based on an offshore wind tower.
Background
The air film structure is a novel building space structure, and is characterized in that a flexible structure system is used for bearing various loads of a roof, wherein the loads are mainly constant load, live load, wind load and snow load. The snow load is divided into uniformly distributed snow load and local snow load, and especially the local snow load is particularly unfavorable to the inflatable membrane structure. In addition, the inflatable membrane structure is very sensitive to wind load, the spherical roof belongs to a three-dimensional curved surface, and the wind pressure of the surface is closely related to the Reynolds number, the surface roughness, the wind speed profile and the like. Wind is a main factor of membrane structural damage, under the action of wind pressure, the displacement of a gas membrane is overlarge, the phenomenon of local stress relaxation can occur, and the calculation analysis shows that nonlinear calculation is difficult to converge.
In the prior art, the larger the span of the air film, the larger the axial force of the connecting part of the air film and the steel cable, particularly under the action of wind load and snow load, the axial force of the steel cable net at the positions of the gable and the ridge can become very large, and the phenomenon that a single steel cable is stressed too much to be broken easily occurs. Because the single point atress is too big, the air film displacement is too big, and the phenomenon of local stress relaxation and deformation easily appears in the air film, is difficult to satisfy the atress requirement of large-span air film.
Disclosure of Invention
In order to solve the technical problems that when the indoor air pressure of the inflatable membrane is too high, the cable net on the surface of the inflatable membrane is easy to break and the air membrane building is easy to collapse, the invention provides a large-span double-layer inflatable membrane structure with flexible connection of cables, which is connected with the cable net structure nodes on the surface of the inflatable membrane by utilizing steel wires, so that the overall stress performance and the use safety of the inflatable membrane structure are improved.
In order to achieve the above 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 on venue support ground, and second support wall body is fixed on venue support ground, and first support wall body and second support wall body parallel arrangement, first dress membrane collar tie beam have been arranged at the top of first support wall body, and second dress membrane collar tie beam has been arranged at the top of second support wall body.
The first film-loading ring beam and the second film-loading ring beam are connected through the top air bearing film, so that the top air bearing film is prevented from being fixed by a crossed steel cable net and is subjected to surface stress of an air film by adopting an oblique orthogonal steel cable net in order to improve the stress performance of the top air bearing film. In order to avoid the single steel cable from being broken due to overlarge stress, a supporting rib plate is arranged at the upper part of the top air bearing film, the supporting rib plate is connected by a plurality of sections of steel cables, and the connecting part is lifted by the steel cables, so that the steel cables bear part of the surface tension of the air film and are not broken due to overlarge stress.
The first membrane-filling ring beam is connected with the second membrane-filling ring beam through a lower layer of inflatable membrane, and the lower layer of inflatable membrane is arranged at the bottom of the top air bearing membrane.
Each piece of membrane cloth of the top air bearing membrane is connected with the lower layer of inflatable membrane through bolts.
The first membrane-filling ring beam is connected with the second membrane-filling ring beam through a cable net structure, the cable net structure is arranged between the top air bearing membrane and the lower layer of the inflatable membrane, and the cable net structure can strengthen the load bearing capacity of the top air bearing membrane.
The outside of first support wall body has arranged first wind tower, and the outside cloth of second support wall body has arranged the second wind tower, links to each other through the crossbeam between first wind tower and the second wind tower. The first wind tower and the second wind tower fully utilize port wind resources, the wind tower is used as a part of the whole building, on one hand, wind load is buffered, and on the other hand, wind load is utilized to generate electricity to generate electric energy, so that equipment such as a blower is powered.
A plurality of sling connecting pieces are arranged in the cable net structure, the sling connecting pieces are connected with the cross beam through steel wires, the connecting structure can improve the tensile strength of the cable net structure, and the structural stability of the top air bearing membrane and the lower air inflation membrane is enhanced.
The bottom of the second supporting wall body is provided with a plurality of air blowers, the air outlets of the air blowers are communicated with the inside of the air film structure, and the air blowers are used for blowing air into the air film building.
The sling connecting piece comprises an inner sling piece, a square clamping groove is formed in the middle of the inner sling 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 a cross beam, a rope net structure is hung on the cross beam through the steel wire rope, and under the condition that the internal pressure of an air film is insufficient, the air film can be lifted by the steel wire rope, the air film is not collapsed, and the use safety of the air film building is greatly improved.
The adjacent inner hanging parts are connected through slings, and a plurality of sling connecting parts are connected with each other to form a cable net structure.
The slings are hinged on the inner hanging pieces through bolts, and four connecting nodes are arranged on each inner hanging piece.
The top air bearing membrane is provided with a plurality of penetrating holes, the penetrating holes are sealed by a cylindrical sealing piece, the cylindrical sealing piece is concentrically arranged with an inner hanging piece arranged in the cylindrical sealing piece, and the steel wire rope is connected with the cross beam after penetrating through the cylindrical sealing piece.
The top air bearing membrane has an internal air pressure at least 250-300Pa higher than an external air pressure.
Compared with the prior art, the invention has the following specific beneficial effects:
1. the invention adopts the steel wire rope to be connected with the rope net structure, the steel wire rope lifts the top air bearing film and the lower layer air inflation film, the surface stress of the air film is dispersed, and the rigidity and the stability of the air film building are enhanced.
2. According to the invention, the rope net structure is lifted by adopting the steel wire rope, and the steel wire rope can lift the whole air film structure under the condition of insufficient air film internal pressure, so that the air film structure cannot collapse, and the use safety of the air film building is greatly improved.
3. The cable net structure is connected with the original air film structure, so that the cable net structure is strong in operability and convenient to assemble and disassemble, the installation process is simplified, and the installation process is simplified.
4. According to the invention, the cable net structure and the steel wire rope are additionally arranged, so that 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 air film span can be effectively increased.
5. According to the invention, the wind towers are additionally arranged at two sides of the air film structure, so that the wind tower structure can be used for reducing the material consumption of the steel structure of the supporting rib plate, and the wind tower can buffer part of wind load and supply energy to the inside of the top air bearing film by using electric energy generated by wind power.
Drawings
Fig. 1 is a schematic diagram of the front structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic structural view of the sling attachment 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 air-filling 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 roll, 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 schemes and beneficial effects to be solved more clear, the 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 for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-3, a large-span inflatable membrane structure comprises a first support wall body 1 and a second support wall body 2, wherein the first support wall body 1 is fixed on a support ground of a venue, the second support wall body 2 is fixed on the support ground of the venue, the first support wall body 1 and the second support wall body 2 are arranged in parallel, a first membrane-filling ring beam 3 is arranged at the top of the first support wall body 1, and a second membrane-filling ring beam 4 is arranged at the top of the second support wall body 2.
One end of the top air bearing film 5 is supported on the first film loading ring beam 3, and the other end of the top air bearing film 5 is supported on the second film loading ring beam 4, so that 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 an oblique orthogonal steel cable net is adopted to bear the surface stress of an air film. In order to avoid the single steel cable from being broken due to overlarge stress, a supporting rib plate is arranged at the upper part of the top air bearing film 5, the supporting rib plate is connected by a plurality of sections of steel cables, and the connecting part is lifted by the steel cables, so that the steel cables bear part of the surface tension of the air film and are not broken due to overlarge stress. The support rib plate is hollowed out and welded with the support column, and workers can directly climb up the support rib plate to install the steel wire rope 15.
One end of the lower layer inflatable membrane 6 is supported on the first membrane-filling ring beam 3, the other end of the lower layer inflatable membrane 6 is supported on the second membrane-filling 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 bearing membrane 5 is connected with the lower layer of air inflation membrane 6 through bolts.
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 inflation 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.
The first wind tower 8 is arranged on the outer side of the first supporting wall body 1, the second wind tower 9 is arranged on the outer side of the second supporting wall body 2, the number of the first wind tower and the number of the second wind tower can be adjusted according to the scale of the air film building, and the first wind tower 8 and the second wind tower 9 are connected through a cross beam 10. The first wind tower 8 and the second wind tower 9 fully utilize port wind resources, and the wind towers are used as a part of the whole building, so that wind load is buffered on one hand, and on the other hand, the wind load is utilized to generate electricity to generate electric energy so as to supply power for equipment such as the blower 11.
A plurality of sling connection pieces 18 are arranged in the cable network structure 7, the sling connection pieces 18 are connected with the cross beam 10 through steel wire ropes 15, the plurality of steel wire ropes 15 are arranged in parallel, and the connection structure can improve the bearing strength of the cable network structure 7. Under the effect of wire rope 15, when the air film appears the unstable condition of atmospheric pressure, wire rope 15 supports the rib plate structure and can pull up the air film surface cable for the inside pressure of air film can enlarge, improves the atress performance, strengthens the structural stability of top gas carrier film 5 and lower floor's inflation film 6.
The bottom of the second supporting wall body 2 is provided with a plurality of blowers 11, the air outlets of the blowers 11 are communicated with the inside of the air film structure, and the blowers 11 supply air to the inside of the air film structure.
The sling connecting piece 18 comprises an inner sling 12, a square clamping groove 13 is formed in the middle of the inner sling 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 hoisted on the cross beam 10 through the steel wire rope 15, and under the condition of insufficient air film internal pressure, the steel wire rope 15 can hoist an air film, so that the air film is not collapsed, and the use safety of the air film building is greatly improved.
The adjacent inner hanging parts 12 are connected through hanging ropes 16, and a plurality of hanging rope connecting parts 18 are connected with each other to form a rope net structure 7.
Slings 16 are bolted to the inner hangers 12, with four connecting nodes provided on each inner hanger 12.
The top air bearing membrane 5 is provided with a plurality of penetrating holes, the penetrating holes are sealed by a cylindrical sealing piece 17, the cylindrical sealing piece 17 is arranged concentrically with the inner hanging piece 12 arranged in the cylindrical sealing piece 17, and the steel wire rope 15 is connected with the cross beam 10 after penetrating through the cylindrical sealing piece 17.
The internal air pressure of the top air carrier film 5 is at least 250-300Pa higher than the external air pressure.
In order to further improve the tightness 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-filling ring beam 3 and the second film-filling ring beam 4 through pressing plates, external sealing strips and internal sealing strips by film-pressing screws.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
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-mounting ring beam (3) is arranged at the top of the first supporting wall body (1), and a second membrane-mounting 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 bearing film (5);
the first film-filling ring beam (3) is connected with the second film-filling 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 network structure (7), and the sling connecting pieces (18) are connected with the cross beam (10) through steel wire ropes (15);
the bottom of the second supporting wall body (2) is provided with a plurality of blowers (11);
the sling connecting piece (18) comprises an inner sling piece (12), a square clamping groove (13) is formed in the middle of the inner sling 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), and the other end of the steel wire rope (15) is connected with the cross beam (10);
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 network structure (7);
the sling (16) is hinged to the inner sling (12) by means of a bolt.
2. A large span inflatable membrane structure according to claim 1, characterized in that the top air carrier membrane (5) is provided with a plurality of mounting holes, which are sealed by means of a cylindrical sealing member (17), the cylindrical sealing member (17) being arranged concentrically with the inner hanger member (12) placed in the cylindrical sealing member (17).
3. A large span inflatable membrane structure according to claim 1, wherein the internal air pressure of the top air carrier film (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 CN115404991A (en) | 2022-11-29 |
| CN115404991B true CN115404991B (en) | 2024-04-09 |
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Family Applications (1)
| 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 |
|---|---|
| CN115404991A (en) | 2022-11-29 |
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