GB2115032A - Roof structure or cover - Google Patents
Roof structure or cover Download PDFInfo
- Publication number
- GB2115032A GB2115032A GB08205184A GB8205184A GB2115032A GB 2115032 A GB2115032 A GB 2115032A GB 08205184 A GB08205184 A GB 08205184A GB 8205184 A GB8205184 A GB 8205184A GB 2115032 A GB2115032 A GB 2115032A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roof
- cover
- roof structure
- enclosure
- membranes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
-
- 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
- E04B7/14—Suspended roofs
-
- 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
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
- E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
- E04H2015/203—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework supported by a non-inflatable structure or framework
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Tents Or Canopies (AREA)
Abstract
This comprises upper membrane 10 and lower membrane 11 sealed together at their periphery 12 to form enclosure 13 filled with gas. Membranes 10, 11 are connected at periphery 12 to support structure 15. Gas pressure is maintained by pump 19 controlled by pressure sensing device 20. The gas may be below, at, or above atmospheric pressure, and may be lighter than, or of similar density to, air. The peripheral part of the roof may deflect wind upwards to reduce wind- loading on upper membrane 10. The membranes may be made more rigid by application of suitable material to their surfaces. A rigid structure may be constructed on, or integral with, membrane 10, 14 is a drain. Members within enclosure 13 may interconnect the two membranes. <IMAGE>
Description
SPECIFICATION
Roof structure or the like
This invention relates to a roof structure or rooflike cover.
According to the present invention there is provided a lower membrane sealingly connected together at their periphery to form an enclosure, a gas provided within said enclosure, and means for connecting membranes to a support structure or support members or restraining members.
Some embodiments of the invention will now be described, by way of examples, with reference to the accompanying drawing, in which: Figure 1 is a transverse section through a roof structure or roof-like cover according to the present invention,
Figure 2 is a plan view of the roof structure or roof-like cover,
Figure 3 is a plan view showing an alternative shape,
Figure 4 is a plan view showing another alternative shape, and
Figure 5 is a partial transverse section through an alternative support structure.
The roof structure or roof-like structure may be a permanent, semi-permanent or temporary structure when erected and comprises an upper membrane 10 and a lower membrane 11 which are sealingly connected together by a peripheral sealing joint 1 2 to form an enclosure 13. The enclosure 13 contains a gas which may be air or any other suitable gas. The gas may be at, or above, or below atmospheric pressure depending on the particular gas used. The upper membrane 1 preferably adopts convex shape, viewed from the outside, when the gas is supplied to the enclosure 13 and the lower membrane 11 adopts any desired shape, such as concave or convex or planar.
The membranes 10 and 11 may be formed of the same or different gas impermeable or substantially gas impermeable material. Such material may comprise a fabric or plastics film or sheet or any other suitable material which may comprise one or more layers or be a coated material. The material may be reinforced but should be flexible to allow the membranes to adopt the desired shape when gas is introduced into the enclosure 1 3. The desired shape of the membranes 10, 11 may be initially determined by suitably tailoring the membranes during their construction. The reinforcing may be in the form of a net or strands separate from the membranes 10 and 11 and the reinforcement may be adjustable to determine the finished shape of the structure.
The membranes 10 and 11 may be made more rigid by the application of any suitable material applied to their surfaces after the desired shape has been initially or finally obtained.
The membrane 11 may be provided with a drainage device 1 4 located at its centre or lowest point to enable any liquid, such as water, to be drained from the enclosure 13.
The peripheral sealing joint 12 may be made in
any suitable manner, such as by welding,
adhesion, stitching or clamping and it is connected
to support structure 1 5 by a connector 16. The
support structure 1 5 may be continuous, i.e. it mav extend around the periphery of the roof structure
with a suitable opening or openings therein for
access to the covered area or as shown in Figure 5
it may comprise a plurality of spaced apart struts
or poles 17 suitably guyed by a guy rope or ropes
18. The support structure 1 5 will resist the radial
and vertical loads necessary to restrain the
membranes 10, 11 to maintain their shape and
location.
Where the gas in the enclosure 1 3 is at a pressure above atmospheric pressure a pumping device 1 9 is connected to the enclosure 13 to enable the pressure to be established and/or maintained. The gas pressure within the enclosure
13 may be controlled by a pressure sensing device 20 which may be used to automatically control the pumping device 19. Alternativeiy the pumping device 1 9 may be controlled manually or by a timing device.
A pressure relief valve may form part of the pressure sensing device 20 or be separate therefrom to prevent the gas pressure within the enclosure 13 rising above a predetermined level.
Alternatively the enclosure 13 may be initially pressurised and sealed with no provision for maintaining or controlling the gas pressure.
The roof structure cover formed by the membranes 10, 11 may be circular or substantially rectangular or hexagonal as shown in
Figures 2 to 4 or any other desired shape which may be a regular configuration as illustrated, or of an irregular configuration.
Such a roof structure or covering may be used for supporting during its construction a more rigid structure constructed on top of or integral with the membrane 10. Upon completion of the more rigid structure the gas may be retained in the enclosure
13 to assist in supporting the more rigid structure
or the more rigid structure on the upper
membrane 10 may be constructed to be self supporting in which case the lower membrane 11
may be removed or left in position. The more rigid
structure on the membrane 10 may be
prefabricated in one or more sections or
constructed in situ.
A plurality of such roof structures or roof-like covers may be connected together.
A roof structure or roof-like cover may be disposed at an angle to the horizontal. The peripheral part of a roof structure or roof-like cover may be designed such that wind may be deflected upwardly in such a manner as to reduce the wind loading on the upper membrane 10.
If the gas contained within the enclosure 13 is lighter than air then the lift forces generated by the gas will totally or partially support the upper membrane 10 and the lower membrane 11 will be relieved of forces acting on the upper membrane
10 from the outside by an amount equal to the support generated by the lift forces.
Where air or a gas of the same or similar density to air is contained within the enclosure 1 3 then forces acting on the upper membrane 10 from the outside are transmitted through the gas to the inner membrane 11 which will be placed in tension.
Interconnecting pieces may be provided within the enclosure 13 for connecting the upper membrane 10 to the lower membrane 11.
Claims (19)
1. A roof structure or roof-like cover comprising an upper membrane and a lower membrane sealingly connected together at their periphery to form an enclosure, a gas provided within said enclosure, and means for connecting the membranes to a support structure or support members or restraining members.
2. A roof structure or roof-like cover as claimed in claim 1 or claim 2, in which the upper membrane has a convex shape when viewed from outside.
3. A roof structure or roof-like cover as claimed in claim 1 or claim 2, in which the membranes are formed from a flexible reinforced material.
4. A roof structure or roof-like cover as claimed in claim 3, in which the reinforcement is in the form of a net or strands separate from the material.
5. A roof structure or roof-like cover as claimed in claim 4, in which the reinforcement is adjustable to determine the shape of the structure or cover.
6. A roof structure or roof-like cover as claimed in any preceding claims, in which the membranes are made more rigid by the application of a material applied to them after the desired shape has been obtained.
7. A roof structure or roof-like cover as claimed in any preceding claim, in which the lower membrane is provided with a drainage device at its lowest point to enable any liquid to be drained from the enclosure.
8. A roof structure or roof-like cover as claimed in any preceding claim, in which the membranes are connected together at their periphery by welding, adhesion, stitching or clamping and the periphery is connected to support structure or support members or restraining members by connectors.
9. A roof structure or roof-like cover as claimed in any preceding claim, in which the support structure extends around the periphery of the roof structure and is provided with an opening for access to the covered area.
10. A roof structure or roof-like cover as claimed in any one of claims 1 to 8, in which the support members comprise a plurality of spaced apart struts or poles suitably guyed by guy ropes.
11. A roof structure or roof-like cover as claimed in any preceding claim, in which the gas pumping device is connected to the enclosure.
1 2. A roof structure or roof-like cover as claimed in claim 11, including a pressure sensing device for automatically controlling the pumping device.
13. A roof structure or roof-like cover as claimed in claim 11 or claim 12, including a pressure relief valve.
14. A roof structure or roof-like cover as claimed in any preceding claim, in which the structure or cover is used for supporting a more rigid structure constructed on top of or integral with the upper membrane.
1 5. A roof structure or roof-like cover as claimed in any preceding claim, in which interconnecting members are provided within the enclosure which connect the upper membrane with the lower membrane.
1 6. A roof structure or roof-like cover as claimed in any preceding claim, in which the membranes are disposed at an angle to the horizontal.
1 7. A roof structure or roof-like cover as claimed in any preceding claim, in which the periphery is shaped so as to deflect wind upwardly to reduce the loading on the upper membrane.
1 8. A roof structure or roof-like cover as claimed in any preceding claim, in which the gas is lighter than air.
19. A roof structure or roof-like cover substantially as hereinbefore described with reference to and as
illustrated in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08205184A GB2115032A (en) | 1982-02-22 | 1982-02-22 | Roof structure or cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08205184A GB2115032A (en) | 1982-02-22 | 1982-02-22 | Roof structure or cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2115032A true GB2115032A (en) | 1983-09-01 |
Family
ID=10528514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08205184A Withdrawn GB2115032A (en) | 1982-02-22 | 1982-02-22 | Roof structure or cover |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2115032A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342147A1 (en) * | 1988-05-09 | 1989-11-15 | Rudolf Lechner | Construction having chambers admitting a medium |
| US4932169A (en) * | 1989-11-01 | 1990-06-12 | Robert Charbonneau | Inflatable structure |
| GB2425135A (en) * | 2005-11-28 | 2006-10-18 | Christopher Charles Brindle | Support stand for an inflatable tent frame |
| IT202300017673A1 (en) * | 2023-08-28 | 2025-02-28 | Pasquale Rescio | ACTUATOR JOINT TO BRING TWO PVC TEXTILE MEMBRANES TO A STATE OF TENSION FOR THE CONSTRUCTION OF THE ROOF |
-
1982
- 1982-02-22 GB GB08205184A patent/GB2115032A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342147A1 (en) * | 1988-05-09 | 1989-11-15 | Rudolf Lechner | Construction having chambers admitting a medium |
| US4932169A (en) * | 1989-11-01 | 1990-06-12 | Robert Charbonneau | Inflatable structure |
| GB2425135A (en) * | 2005-11-28 | 2006-10-18 | Christopher Charles Brindle | Support stand for an inflatable tent frame |
| GB2425135B (en) * | 2005-11-28 | 2007-03-21 | Christopher Charles Brindle | Inflatable structures and support stands therefor |
| IT202300017673A1 (en) * | 2023-08-28 | 2025-02-28 | Pasquale Rescio | ACTUATOR JOINT TO BRING TWO PVC TEXTILE MEMBRANES TO A STATE OF TENSION FOR THE CONSTRUCTION OF THE ROOF |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |