A composite membrane structure for sports stadiums

Abstract

This invention relates to a composite membrane structure for sports stadiums, comprising a membrane body and a cable net. Load-bearing rods are fixedly connected to the intersections of the cable nets via cable net clamps. Load-bearing components are located at the lower ends of the load-bearing rods. Beam clamps are provided on the lower circumference of the load-bearing rods, and beam frames are fixedly connected to them. The beam frames include longitudinally and transversely arranged dividing beams and connecting beams. Sound-absorbing cotton is placed within the space enclosed by the dividing beams and connecting beams. The membrane body is mounted on the dividing beams via membrane clamps. Openings are provided on the membrane body at positions corresponding to the load-bearing components for them to extend downwards. When retracted, the load-bearing components are housed within the internal space at the lower end of the load-bearing rods; when extended downwards, they protrude from the lower surface of the membrane body. This invention achieves both lightweighting of the ceiling in large sports stadiums and accommodates the needs of converting sports venues for artistic or cultural purposes, providing convenience for the use and operation of sports stadiums.

Description

Technical Field

[0001] This invention relates to the field of architecture, and more specifically to a composite membrane structure for sports stadiums. Background Technology

[0002] Composite membranes for sports stadiums, due to their lightweight nature, perfectly solve the problem of achieving large, open spaces that traditional reinforced concrete and steel structures cannot. Simultaneously, composite membranes possess excellent flame-retardant and high-temperature resistance properties, and are highly artistically malleable, meeting the needs of architects for various irregular and simple shapes. In recent years, with the large-scale construction of cable-stayed sports stadiums, composite membrane technology has become increasingly mature. Current composite membrane technologies only serve an architectural decorative purpose by attaching to steel structures and tensioning them to form irregular surfaces. Furthermore, the flat surface after tensioning makes secondary processing unsuitable. Using composite membranes for ceilings in sports stadiums reduces roof load and also fulfills the aesthetic function of everyday stadiums. Additionally, sports stadiums can be used for concerts, cultural performances, and other events during non-competitive periods. However, current composite membrane technologies for sports stadiums cannot meet sound insulation requirements, and cultural performances often require modifications to the ceiling's sound and lighting systems based on the performance content. A one-time installation of composite membrane cannot meet the ceiling modification requirements for cultural performances. For example, Chinese utility model patent CN207597594U discloses a gymnasium based on a combination structure of a statically indeterminate ring truss and a cable dome, which includes an outer statically indeterminate ring truss structure and a cable dome structure. The outer statically indeterminate ring truss structure includes load-bearing piers, load-bearing columns, struts, and truss rods; the cable dome structure includes an upper chord ridge cable, a lower chord inclined cable, an outer ring beam, an inner ring beam, and compression members; the outer statically indeterminate ring truss structure is fixed to the ground, providing the necessary constraint force to balance the huge tensile force generated by the cable dome structure roof. The cable dome structure forms a self-stressed spatial structure system through the upper chord ridge cable, the lower chord inclined cable, and the compression members; the outer ends of the outer upper chord ridge cable and the lower chord inclined cable in the cable dome structure are fixed to the outer statically indeterminate ring truss structure, and the outer ring beam, inner ring beam, and compression members in the cable dome structure fix the shape of the overall structure. For example, Chinese utility model patent CN206928432U discloses a rigid roof composite tension dome structure, including an external cable truss structure and an internal cable dome structure. The external cable truss structure includes an outer ring, cable truss spine cables, cable truss upper ring cables, cable truss lower ring cables, and cable truss diagonal cables. The internal cable dome structure includes an inner tension ring and at least one circumferential component disposed between the inner tension ring and the external cable truss structure. In the aforementioned two patents concerning sports stadiums, after the composite membrane is installed on its roof, the composite membrane is formed in one piece and cannot be re-installed. It cannot provide sound insulation and cannot accommodate the secondary installation of sound systems and lighting fixtures, thus failing to meet the renovation requirements for artistic performances.

[0003] In view of this, the present invention provides a composite membrane structure for sports venues. By setting sound-absorbing cotton on the membrane surface, the acoustic effect and sound insulation function of the performance are guaranteed. By setting load-bearing components and membrane cover, the load of stage equipment such as sound equipment and lighting is added, thereby meeting the transformation needs of the performance. At the same time, after the entire composite membrane is installed, the load is directly added through the load-bearing components, without the need for on-site secondary welding or other operations. Summary of the Invention

[0004] The present invention aims to provide a composite membrane structure for sports stadiums to overcome the shortcomings of the prior art. The technical problem to be solved by the present invention is achieved through the following technical solution.

[0005] A composite membrane structure for sports stadiums includes a membrane body and a cable net. The improvement lies in that: load-bearing rods are fixedly connected to the intersections of the cable nets via cable net clamps; load-bearing components are located at the lower ends of the load-bearing rods; beam clamps are provided on the lower circumference of the load-bearing rods, and beam frames are fixedly connected to them; the beam frames include dividing beams and connecting beams arranged in a crisscross pattern; sound-absorbing cotton is provided in the space enclosed by the dividing beams and connecting beams; the membrane body is mounted on the dividing beams via membrane clamps; an opening is provided on the membrane body corresponding to the position of the load-bearing component for the load-bearing component to extend downwards; when the load-bearing component is retracted, it is housed in the internal space at the lower end of the load-bearing rod; when extended downwards, the load-bearing component extends beyond the lower surface of the membrane body.

[0006] Preferably, the lower end of the load-bearing rod is provided with double clamps, which are connected to the load-bearing member by bolts and nuts. When the load-bearing member is retracted, the nuts are tightened so that the load-bearing member is clamped and housed in the double clamps. When the load-bearing member is lowered and extended, the nuts are loosened so that the load-bearing member extends out of the lower surface of the membrane body.

[0007] Preferably, rubber pads are provided on the opposing inner surfaces of the double clamps.

[0008] Preferably, the bolt is provided with a locking pin.

[0009] Preferably, the dividing beam and the connecting beam are provided with a bearing plate, the bearing plate has an opening, steel wires pass through the opening to form a steel mesh, and the sound-absorbing cotton is provided on the steel mesh.

[0010] Preferably, the membrane body is provided with a membrane cover at the opening, and the membrane cover is used to close the opening when the load-bearing component is retracted.

[0011] Preferably, the membrane body is a 0.32 mm thick glass fiber membrane, and the membrane surface is coated with a low-emissivity coating.

[0012] Preferably, the mounting beam further includes a support rod, which is located at the intersection of the dividing beam and the connecting beam. The two ends of the support rod are fixedly connected to the dividing beam and the connecting beam, respectively. The support rod is used to fix and stabilize the dividing beam and the connecting beam.

[0013] Preferably, the sound-absorbing cotton is 50mm thick, and the sound-absorbing cotton is wrapped with water-repellent glass fiber cloth.

[0014] Compared with existing technologies, the composite membrane structure for sports venues provided by this invention effectively reflects heat radiation from inside and outside the venue by applying a low-emissivity coating to the surface of the membrane body, thus reducing the energy consumption of the venue's operation. By incorporating sound-absorbing cotton, it effectively ensures the acoustic effects within the venue. Furthermore, by including load-bearing components and a membrane cover, the cover maintains the overall decorative effect of the membrane body when closed, and extends downwards when open to accommodate the installation of sound equipment, lighting, and other loads required for artistic performances. This invention achieves both lightweighting of the ceiling in large sports venues and fulfills the need for conversion between sports and artistic uses, providing convenience for the operation and use of sports venues. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the composite membrane structure in this invention;

[0016] Figure 2 This is a schematic diagram of the composite membrane structure in this invention from another angle;

[0017] Figure 3 This is a structural schematic diagram of the load-bearing component in this invention;

[0018] Figure 4 This is a structural schematic diagram of the load-bearing component from another angle in this invention;

[0019] The reference numerals in the attached figures are as follows:

[0020] 1. Membrane body; 21. Boundary beam; 22. Connecting beam; 23. Bearing plate; 24. Support rod; 3. Sound-absorbing cotton; 4. Load-bearing rod; 5. Cable net; 6. Membrane cover; 71. Load-bearing component; 72. Double clamp plate; 73. Rubber pad; 74. Bolt; 75. Nut; 76. Locking pin. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1:

[0023] Reference Figures 1 to 4As shown, a composite membrane structure for sports stadiums includes a membrane body 1 and a cable net 5. The improvement lies in that: a load-bearing rod 4 is fixedly connected to the intersection of the cable net 5 via cable net clamps; a load-bearing member 71 is located at the lower end of the load-bearing rod 4; a beam clamp is provided on the lower circumference of the load-bearing rod 4, and a mounting beam frame is fixedly connected to it via the beam clamp; the mounting beam frame includes a dividing beam 21 and a connecting beam 22 arranged in a crisscross pattern; sound-absorbing cotton 3 is provided in the space enclosed by the dividing beam 21 and the connecting beam 22; the membrane body 1 is mounted on the dividing beam 21 via membrane clamps; an opening is provided on the membrane body 1 at the position corresponding to the load-bearing member 71 for the load-bearing member 71 to extend downwards; when the load-bearing member 71 is retracted, it is housed in the internal space at the lower end of the load-bearing rod 4; when the load-bearing member 71 is extended downwards, it extends beyond the lower surface of the membrane body 1.

[0024] In this embodiment, the load-bearing rod 4 supports components such as the dividing beam 21 and connecting beam 22 below, and also provides a storage space for the load-bearing component 71 when it is retracted. The load-bearing component 71 facilitates the mounting of external loads. When used as a sports venue, the load-bearing component 71 is housed in the lower end of the load-bearing rod 4. When used as a performance venue, the load-bearing component 71 extends out of the opening on the membrane body 1, and loads such as sound equipment and lighting fixtures are added to the load-bearing component 71 according to the performance requirements. The dividing beam 21 and the connecting beam 22 provide a supporting structure for the installation of the membrane body 1 and the sound-absorbing cotton 3.

[0025] Furthermore, the dividing beam 21 and the connecting beam 22 are provided with a bearing plate 23, the bearing plate 23 having an opening through which steel wires pass to form a steel mesh, and the sound-absorbing cotton 3 is disposed on the steel mesh. Even further, the dividing beam 21 and the connecting beam 22 are aluminum alloy steel pipes with a diameter of 102mm. Even further, the spacing between adjacent openings on the bearing plate 23 is 200mm, the diameter of the opening is 12mm, and the diameter of the steel wire is 2mm. In this embodiment, the bearing plate 23 and the steel mesh are used to install the sound-absorbing cotton 3, thereby effectively fixing the sound-absorbing cotton 3 in place.

[0026] Furthermore, a membrane cover 6 is provided on the membrane body 1 at the opening, and the membrane cover 6 is used to close the opening when the load-bearing component 71 is retracted. Even further, the membrane cover 6 is a Velcro fastener. In this embodiment, the membrane cover 6 ensures both the integrity of the entire membrane surface when the load-bearing component 71 is retracted and the ease of operation when the load-bearing component 71 is extended or lowered during use.

[0027] Furthermore, the membrane body 1 is a 0.32mm thick glass fiber membrane, and its surface is coated with a low-emissivity coating. In this embodiment, the thermal reflectivity of the membrane body 1 is 60%.

[0028] Furthermore, the mounting beam also includes a support rod 24, which is located at the intersection of the dividing beam 21 and the connecting beam 22. The two ends of the support rod 24 are fixedly connected to the dividing beam 21 and the connecting beam 22, respectively. The support rod 24 is used to fix and stabilize the dividing beam 21 and the connecting beam 22.

[0029] Furthermore, the sound-absorbing cotton 3 is 50mm thick, and the sound-absorbing cotton 3 is wrapped with hydrophobic glass fiber cloth. In this embodiment, through the sound-absorbing cotton 3 and the membrane body 1, the noise reduction coefficient of the entire composite membrane can reach 0.9.

[0030] This embodiment employs a membrane body 1 with a low-emissivity coating, which reduces the exchange of heat radiation between the indoor and outdoor areas of the venue, thereby lowering the overall air conditioning load and achieving effective energy savings. The sound-absorbing cotton 3 provides sound insulation, ensuring good acoustics within the stadium. The membrane cover 6 closes the opening on the membrane body 1 when the load-bearing component 71 is not needed, maintaining the overall integrity of the membrane surface. When the load-bearing component 71 is required, the membrane cover 6 opens, allowing it to extend from the opening and suspend stage equipment such as speakers and lights. The load-bearing component 71 ensures that after the entire composite membrane is installed, no on-site welding is required for any subsequent modifications for artistic performances.

[0031] Example 2:

[0032] Based on Example 1, referring to Figure 3 , 4 As shown, the lower end of the load-bearing rod 4 is provided with a double clamping plate 72. The double clamping plate 72 is connected to the load-bearing member 71 by bolts 74 and nuts 75. When the load-bearing member 71 is retracted, the nuts 75 are tightened so that the load-bearing member 71 is clamped and housed in the double clamping plate 72. When the load-bearing member 71 is lowered and extended, the nuts 75 are loosened so that the load-bearing member 71 extends out of the lower surface of the membrane body 1.

[0033] In this embodiment, a double clamping plate 72 is provided to form a receiving space for the load-bearing component 71. When the load-bearing component 71 is retracted, it is housed between the double clamping plates 72. By tightening the nut 75, the double clamping plates 72 clamp and fix the load-bearing component 71, thereby preventing the load-bearing component 71 from falling accidentally. When the load-bearing component 71 needs to be lowered and extended, the nut 75 is loosened, and the load-bearing component 71 slides out from the double clamping plates 72 and extends from the lower surface of the membrane body 1. At this time, loads such as speakers and lamps can be added as needed.

[0034] Furthermore, rubber pads 73 are provided on the opposing inner surfaces of the double-clamped plates 72. In this embodiment, the rubber pads 73 serve to prevent slipping and wear, stabilize the load-bearing component 71 within the double-clamped plates 72, and reduce friction between them.

[0035] Furthermore, the bolt 74 is provided with a locking pin 76. In this embodiment, the locking pin 76 is used to lock the nut 75 to prevent the load-bearing component 71 from accidentally extending due to loosening of the nut when it is retracted. When the load-bearing component 71 needs to extend, the locking pin 76 is first removed and the nut 75 is loosened. The load-bearing component 71 slides down from the double clamping plate 72 and extends out of the lower surface of the membrane body 1, still connected to the double clamping plate 72 by the bolt 74. At this time, loads such as sound systems and lighting fixtures required for artistic performances can be added to the load-bearing component 71 according to specific needs.

[0036] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0039] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0040] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0041] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite membrane structure for sports stadiums, comprising a membrane body (1) and a cable net (5), characterized in that: At the intersection of the cable net (5), the load-bearing rod (4) is fixedly connected by the cable net clamp. The load-bearing rod (4) has a load-bearing component (71) at its lower end. The lower circumference of the load-bearing rod (4) is provided with a beam clamp and is fixedly connected to the installation beam frame. The installation beam frame includes a dividing beam (21) and a connecting beam (22) arranged in a crisscross pattern. The space enclosed by the dividing beam (21) and the connecting beam (22) is provided with sound-absorbing cotton (3). The membrane body (1) is set on the dividing beam (21) by the membrane clamp. The membrane body (1) has an opening at the position corresponding to the load-bearing component (71) for the load-bearing component (71) to extend downwards. When the load-bearing component (71) is retracted, it is housed in the internal space of the lower end of the load-bearing rod (4). When the load-bearing component (71) is extended downwards, it extends out of the lower surface of the membrane body (1).

2. The composite membrane structure for sports stadiums according to claim 1, characterized in that: The lower end of the load-bearing rod (4) is provided with a double clamping plate (72). The double clamping plate (72) is connected to the load-bearing member (71) by bolts (74) and nuts (75). When the load-bearing member (71) is retracted, the nuts (75) are tightened so that the load-bearing member (71) is clamped and housed in the double clamping plate (72). When the load-bearing member (71) is lowered and extended, the nuts (75) are loosened so that the load-bearing member (71) extends out of the lower surface of the membrane body (1).

3. A composite membrane structure for sports stadiums according to claim 2, characterized in that: Rubber pads (73) are provided on the opposing inner surfaces of the double-clamp plate (72).

4. A composite membrane structure for sports stadiums according to claim 2, characterized in that: The bolt (74) is provided with a locking pin (76).

5. A composite membrane structure for sports stadiums according to claim 1, characterized in that: The dividing beam (21) and the connecting beam (22) are provided with a bearing plate (23), the bearing plate (23) is provided with an opening, the steel wire passes through the opening to form a steel mesh, and the sound-absorbing cotton (3) is provided on the steel mesh.

6. A composite membrane structure for sports stadiums according to claim 1, characterized in that: The membrane body (1) is provided with a membrane cover (6) at the opening, and the membrane cover (6) is used to close the opening when the load-bearing member (71) is retracted.

7. A composite membrane structure for sports stadiums according to claim 1, characterized in that: The membrane body (1) is a 0.32 mm glass fiber membrane with a low-emissivity coating on its surface.

8. A composite membrane structure for sports stadiums according to claim 1, characterized in that: The mounting beam also includes a support rod (24), which is located at the intersection of the dividing beam (21) and the connecting beam (22). The two ends of the support rod (24) are fixedly connected to the dividing beam (21) and the connecting beam (22) respectively. The support rod (24) is used to fix and stabilize the dividing beam (21) and the connecting beam (22).

9. A composite membrane structure for sports stadiums according to claim 1, characterized in that: The sound-absorbing cotton (3) is 50 mm thick, and the sound-absorbing cotton (3) is wrapped with water-repellent glass fiber cloth.

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