Double-layer orthogonal large-opening cable-membrane structure and its installation method

Abstract

The present invention provides a double-layer, orthogonal, large-opening cable-membrane structure and its installation method. The cable-membrane structure comprises: an outer pressure ring beam and an inner ring beam; multiple cantilever rods arranged circumferentially around the outer pressure ring beam; a cable net structure stretched between the outer pressure ring beam and the inner ring beam, comprising upper stabilizing cables, load-bearing cables, and lower stabilizing cables. The upper stabilizing cables and the load-bearing cables are positioned above the lower stabilizing cables and arranged orthogonally, with the lower stabilizing cables alternating with the upper stabilizing cables along the X-axis; and a folded membrane structure comprising several folded membranes laid between adjacent upper and lower stabilizing cables. Laying the folded membranes between the upper and lower stabilizing cables acts like a truss web, enhancing the overall stability of the structural system and eliminating the need for connecting cables or rigid rods between the upper and lower layers. Furthermore, the folded membrane structure naturally forms drainage ditches, allowing rainwater to drain directly from the high roof area to the low outer ring area, eliminating the need for drainage pipes beneath the roof and ensuring the desired architectural effect.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure design, in particular to a double-layer orthogonal large-opening cable membrane structure and an installation method thereof. Background Art

[0002] Currently, when a cable net structure is used for a large-span, saddle-shaped stadium roof, the load-bearing and stabilizing cables are often arranged in a spoke pattern. To enhance the roof's appearance or more effectively address roof drainage, the load-bearing and stabilizing cables can be arranged orthogonally. However, when the load-bearing and stabilizing cables are arranged orthogonally, a single-layer cable net suffers from poor stability and rigidity. A double-layer cable net requires connecting cables or rigid connections between the upper and lower layers, resulting in an excessive number of connecting cables, significantly increasing construction difficulty and posing the risk of cable slack and rod instability. In a traditional spoke-type cable net, rainwater flows from the outer ring high zone to the inner ring high zone, then from the inner ring high zone to the inner ring low zone, and finally from the inner ring low zone to the outer ring low zone, entering the rain gutter. Consequently, drainage pipes are concentrated in the outer ring low zone, significantly impacting the building's appearance and easily causing rainwater to pool, resulting in poor drainage. Moreover, this drainage design cannot achieve natural drainage in the relatively flat area of the roof, and a special drainage pipe needs to be installed under the area. When the drainage pipe under the roof is located above the auditorium, it has a great impact on the architectural effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a double-layer orthogonal large-opening cable membrane structure and its installation method, which can not only enhance the overall stability of the structural system, but also eliminate the need for connecting cables or rigid rods between the upper and lower layers, and at the same time eliminate the need to set up drainage pipes below the roof, thereby solving the drainage problem of the roof.

[0004] In order to achieve the above object, the present invention provides a double-layer orthogonal large-opening cable-membrane structure, comprising:

[0005] External compression ring beam and inner ring beam;

[0006] A plurality of cantilever rods are arranged around the outer pressure ring beam, wherein the cantilever rods are arranged vertically and the top ends are connected to the outer pressure ring beam;

[0007] a cable net structure stretched between the outer pressure ring beam and the inner ring beam, the cable net structure comprising an upper stabilizing cable, a load-bearing cable and a lower stabilizing cable, the upper stabilizing cable and the load-bearing cable being located above the lower stabilizing cable and being orthogonally distributed, and the lower stabilizing cable and the upper stabilizing cable being alternately arranged along the X-axis, one end of the upper stabilizing cable and the load-bearing cable being connected to one side of the outer pressure ring beam, and the other end being connected to the inner ring beam or the other side of the outer pressure ring beam, one end of the lower stabilizing cable being connected to the bottom end of a cantilever rod, and the other end being connected to the bottom end of the inner ring beam or another cantilever rod;

[0008] The folding membrane structure comprises a plurality of folding membranes laid between the adjacent upper stabilizing cables and the adjacent lower stabilizing cables.

[0009] Optionally, two adjacent upper stabilizing cables, a lower stabilizing cable located between the two adjacent upper stabilizing cables, and a folding membrane laid between the adjacent upper stabilizing cables and the lower stabilizing cables together constitute a V-shaped structure extending in a direction perpendicular to the X-axis.

[0010] Optionally, the outer pressure ring beam is circumferentially provided with an annular drainage channel connected to the V-shaped structure.

[0011] Optionally, the heights of the external pressure ring beam are different at different locations.

[0012] Optionally, a rain gutter is provided at the lowest position of the annular drainage channel.

[0013] Optionally, the inner ring beam is a ring cable structure.

[0014] Optionally, the inner ring beam is a rigid structure.

[0015] Optionally, the folding membrane is connected to the upper stabilizing rope and the lower stabilizing rope via a membrane clip.

[0016] Optionally, the folding surface film is a PVC film, a PTEF film or an ETFE film.

[0017] Based on this, the present invention also provides a method for installing a double-layer orthogonal large-opening cable-membrane structure, comprising the following steps:

[0018] Installing an external pressure ring beam, and installing a plurality of cantilever rods along the circumference of the external pressure ring beam, so that the top ends of the cantilever rods are connected to the external pressure ring beam;

[0019] Install the inner ring beam;

[0020] Installing the cable net structure: installing a load-bearing cable, an upper stabilizing cable, and a lower stabilizing cable in sequence between the outer pressure ring beam and the inner ring beam, wherein the upper stabilizing cable and the load-bearing cable are located above the lower stabilizing cable and are orthogonally distributed, and the lower stabilizing cable and the upper stabilizing cable are alternately arranged along the X-axis, so that one end of the upper stabilizing cable and the load-bearing cable is connected to one side of the outer pressure ring beam, and the other end is connected to the inner ring beam or the other side of the outer pressure ring beam, and one end of the lower stabilizing cable is connected to the bottom end of a cantilever rod, and the other end is connected to the bottom end of the inner ring beam or another cantilever rod;

[0021] tensioning the cable net structure to form an integral structure;

[0022] A folding membrane structure is installed, wherein the folding membrane structure includes a plurality of folding membranes, and the folding membranes are laid between the adjacent lower stabilizing cables and the upper stabilizing cables.

[0023] The present invention provides a double-layer orthogonal large-opening cable-membrane structure and an installation method thereof, which has at least one of the following beneficial effects:

[0024] 1) The double-layer orthogonal large-opening cable-membrane structure provided in this application is mainly used for large-span saddle-shaped roofs. The upper stabilizing cables and the load-bearing cables constitute an upper orthogonal cable net, and the lower stabilizing cables constitute a lower cable net. The double-layer cable net has greater stiffness than a single-layer cable net and can effectively reduce deformation under wind loads or vertical earthquakes.

[0025] 2) By laying a folded membrane between the upper and lower layers of stabilizing cables, it acts like a truss web, enhancing the overall stability of the structural system and eliminating the need for connecting cables or rigid rods between the upper and lower layers. Furthermore, the folded membrane contributes to both structural stress and the building's appearance, significantly improving material utilization.

[0026] 3) The folded membrane structure naturally forms a drainage ditch, and rainwater is directly discharged from the high area of the roof to the low area of the outer ring. There is no need to install a drainage pipe under the roof, and the architectural effect is guaranteed;

[0027] 4) Since the lower cable net only has stabilizing cables and is located at the corners of the folding membrane, the cables other than the architectural shape cannot be seen from the inside of the venue, resulting in a simple, transparent and more aesthetically pleasing architectural effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Those skilled in the art will appreciate that the accompanying drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0029] Figure 1 A top view of a double-layer orthogonal large-opening cable-membrane structure provided by an embodiment of the present invention;

[0030] Figure 2 A partially enlarged view of a double-layer orthogonal large-opening cable-membrane structure provided by an embodiment of the present invention;

[0031] In the attached figure:

[0032] 1-External compression ring beam; 2-Inner ring beam; 3-Cantilever rod; 4-Upper stabilizing cable; 5-Load-bearing cable; 6-Lower stabilizing cable; 7-Folding mask. DETAILED DESCRIPTION

[0033] To make the objects, advantages, and features of the present invention more clearly apparent, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale. They are only used to conveniently and clearly assist in illustrating the purposes of the embodiments of the present invention. In addition, the structures shown in the drawings are often part of the actual structure. In particular, different drawings may need to illustrate different focuses and sometimes use different scales.

[0034] As used in the present invention, the singular forms "a", "an" and "the" include plural objects, unless the content clearly indicates otherwise. As used in the present invention, the term "or" is generally used in a sense including "and / or", unless the content clearly indicates otherwise. As used in the present invention, the term "several" is generally used in a sense including "at least one", unless the content clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in a sense including "two or more", unless the content clearly indicates otherwise. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features.

[0035] Figure 1 A top view of a double-layer orthogonal large-opening cable-membrane structure provided by an embodiment of the present invention; Figure 2 This is a partial enlarged view of the double-layer orthogonal large-opening cable membrane structure provided by the embodiment of the present invention. Figure 1-Figure 2 This embodiment provides a double-layer orthogonal large-opening cable-membrane structure, comprising:

[0036] External compression ring beam 1 and inner ring beam 2;

[0037] A plurality of cantilever rods 3 are arranged around the outer pressure ring beam 1, wherein the cantilever rods 3 are arranged vertically and the top ends are connected to the outer pressure ring beam 1;

[0038] a cable net structure stretched between the outer pressure ring beam 1 and the inner ring beam 2, the cable net structure comprising an upper stabilizing cable 4, a load-bearing cable 5 and a lower stabilizing cable 6, the upper stabilizing cable 4 and the load-bearing cable 5 being located above the lower stabilizing cable 6 and being orthogonally distributed, and the lower stabilizing cable 6 and the upper stabilizing cable 4 being alternately arranged along the X-axis, one end of the upper stabilizing cable 4 and the load-bearing cable 5 being connected to one side of the outer pressure ring beam 1, and the other end being connected to the inner ring beam 2 or the other side of the outer pressure ring beam 1, one end of the lower stabilizing cable 6 being connected to the bottom end of a cantilever rod 3, and the other end being connected to the bottom end of the inner ring beam 2 or another cantilever rod 3;

[0039] The folding membrane structure includes a plurality of folding membranes 7 laid between the adjacent upper stabilizing cables 4 and the adjacent lower stabilizing cables 6 .

[0040] By laying the folded membrane 7 between the upper and lower layers of stabilizing cables 6, it acts like a truss web, enhancing the overall stability of the structural system while eliminating the need for connecting cables or rigid rods between the upper and lower layers. Furthermore, the folded membrane 7 contributes both to the structural load and to the building's appearance, significantly improving material efficiency. Furthermore, the folded membrane structure naturally forms drainage channels, allowing rainwater to drain directly from the high roof areas to the lower outer ring areas, eliminating the need for drainage pipes beneath the roof and ensuring the optimal architectural effect.

[0041] Specifically, the double-layer orthogonal large-opening cable membrane structure provided in the present application is mainly used for large-span saddle-shaped roofs. The upper stabilizing cable 4 and the load-bearing cable 5 constitute an upper-layer orthogonal cable net, and the lower stabilizing cable 6 constitutes a lower-layer cable net. The double-layer cable net has greater stiffness than the single-layer cable net, can effectively reduce deformation under wind load or vertical earthquake action, and is more suitable for large-span stadium roofs.

[0042] In this embodiment, the upper stabilizing cable 4 and the lower stabilizing cable 6 are both arranged along the Y-axis, and the lower stabilizing cable 6 and the upper stabilizing cable 4 are alternately arranged along the X-axis. The upper stabilizing cable 4 is located above the lower stabilizing cable 6, and the load-bearing cable 5 is arranged along the X-axis. The X-axis and the Y-axis are two directions perpendicular to each other on the horizontal plane.

[0043] Please combine Figure 2 The two adjacent upper stabilizing cables 4, the lower stabilizing cable 6 located between the two adjacent upper stabilizing cables 4, and the folded membrane 7 laid between the adjacent upper stabilizing cables 4 and the lower stabilizing cables 6 together form a V-shaped structure extending in a direction perpendicular to the X-axis. It can be understood that the two adjacent upper stabilizing cables 4 and the lower stabilizing cable 6 located between the two adjacent upper stabilizing cables 4 can be regarded as three chords in a truss. The three chords and the folded membrane 7 laid between the adjacent upper stabilizing cables 4 and the lower stabilizing cables 6 constitute a three-chord membrane truss. This not only greatly enhances the overall stability of the structural system, but also forms a V-shaped structure that allows for natural drainage. Rainwater is directly discharged from the high area of the roof to the low area of the outer ring, eliminating the need for drainage pipes under the roof, thereby ensuring the architectural effect.

[0044] It should be understood that the same upper stabilizing cable 4 can serve as the chord of a three-chord cable-membrane truss. For example, the stabilizing cable located at the outer edge of the double-layer orthogonal large-opening cable-membrane structure can also serve as the chord of two adjacent three-chord cable-membrane trusses.

[0045] In this embodiment, combined with Figure 1The entire double-layer orthogonal large-opening cable-membrane structure forms multiple V-shaped structures distributed along the X-axis direction.

[0046] Preferably, the outer pressure ring beam 1 is provided with an annular drainage channel connected to the V-shaped structure along the circumferential direction. By adding the annular drainage channel to the outer pressure ring beam 1, rainwater can directly enter the annular drainage channel through the V-shaped structure and then be discharged uniformly through the annular drainage channel, thus avoiding the need to install a drainage pipe below the roof.

[0047] Preferably, the double-layer orthogonal large-opening cable-membrane structure is shaped like a saddle, and the heights of the external pressure ring beam 1 vary. When the heights of the external pressure ring beam 1 vary, the provision of an annular drainage channel facilitates the natural flow of rainwater from the high outer ring area to the low outer ring area when rainwater enters the outer ring area, thereby centrally collecting rainwater in the outer ring area and avoiding the need for drainage pipes below the roof. This solves the roof drainage problem while ensuring a better architectural effect.

[0048] Preferably, a rain gutter is provided at the lowest point of the annular drainage channel. The rain gutter has a rectifying grille device, which can quickly drain rainwater from the roof. The grille has a rectifying effect to avoid the formation of excessively large vortices. At the same time, the grille of the rain gutter can block larger debris, so that the drain pipe will not be blocked.

[0049] In the present embodiment, the material of described folding face film 7 is glass fibre.Be used for the folding face film 7 of building membrane structure, roughly can be divided into PVC film, PTEF film and ETFE film according to coating material difference, the correct selection of folding face film 7 should consider the comprehensive factors such as the scale of its building, purposes, form, service life and budget and decide.PVC film is all cheaper than PTFE film on material and processing, and has material softness, the advantage of easy construction, but is poor than PTFE film on performances such as intensity, durable life, fire resistance.PTFE film is on ultra-fine glass fiber fabric, is coated with the material that polytetrafluoroethylene resin forms, and the maximum special micro of PTFE film is exactly that durability, fire resistance and antifouling property are high.ETFE is the toughest fluoroplastic, and it is when having kept the good heat-resisting, chemical resistance and electrical insulation performance of PTFE, and radiation resistance and mechanical property have improvement to a great extent, and tensile strength can reach 50MPa, close to 2 times of polytetrafluoroethylene.

[0050] In this embodiment, the ends of the folding membrane 7 can be fixed to the adjacent upper stabilizing rope 4 and the lower stabilizing rope 6 by membrane clips, and the adjacent folding membranes 7 must be spliced to prevent rainwater leakage. This application does not impose any restrictions on the size (including length and width) of a single folding membrane 7, and can be selected according to actual needs.

[0051] In this embodiment, the inner ring beam 2 can be a cable-stayed structure or a rigid structure, which is not limited in this application. The rigid structure includes, but is not limited to, a rigid truss or a rigid beam. Compared to a rigid truss, the inner ring beam 2 using cables has a lower deadweight and a simpler structure. A rigid truss has better load-bearing performance and higher strength and rigidity.

[0052] Based on this, combined Figure 1-Figure 2 This embodiment also provides a method for installing a double-layer orthogonal large-opening cable-membrane structure, comprising the following steps:

[0053] Install the external pressure ring beam 1, and install multiple cantilever rods 3 along the circumference of the external pressure ring beam 1, so that the top ends of the cantilever rods 3 are connected to the external pressure ring beam 1;

[0054] Install inner ring beam 2;

[0055] Install the cable net structure: install the load-bearing cable 5, the upper stabilizing cable 4 and the lower stabilizing cable 6 in sequence between the outer pressure ring beam 1 and the inner ring beam 2, the upper stabilizing cable 4 and the load-bearing cable 5 are located above the lower stabilizing cable 6 and are orthogonally distributed, and the lower stabilizing cable 6 and the upper stabilizing cable 4 are alternately arranged along the X-axis, so that one end of the upper stabilizing cable 4 and the load-bearing cable 5 is connected to one side of the outer pressure ring beam 1, and the other end is connected to the inner ring beam 2 or the other side of the outer pressure ring beam 1, one end of the lower stabilizing cable 6 is connected to the bottom end of a cantilever rod 3, and the other end is connected to the bottom end of the inner ring beam 2 or another cantilever rod 3;

[0056] tensioning the cable net structure to form an integral structure;

[0057] After the tensioning is completed, a folding membrane structure is installed. The folding membrane structure includes a plurality of folding membranes. The folding membranes are laid between the adjacent lower stabilizing cables 6 and the upper stabilizing cables 4 .

[0058] The installation method for a double-layer, orthogonal, large-opening cable-membrane structure provided in this embodiment utilizes a folded membrane 7 positioned between upper and lower stabilizing cables 6, creating a truss-like web structure. This enhances the overall stability of the structural system and eliminates the need for connecting cables or rigid rods between the upper and lower layers. Furthermore, the folded membrane 7 contributes both to the structural load and to the building's appearance, significantly improving material efficiency. Furthermore, the folded membrane structure naturally forms drainage channels, allowing rainwater to drain directly from the high roof areas to the lower outer ring areas, eliminating the need for drainage pipes beneath the roof and ensuring optimal architectural results.

[0059] In summary, the embodiment of the present invention provides a double-layer orthogonal large-opening cable membrane structure and its installation method, which is mainly used for large-span saddle-shaped roofs. The upper stabilizing cables and the load-bearing cables constitute an upper-layer orthogonal cable net, and the lower stabilizing cables constitute a lower-layer cable net. The double-layer cable net has greater rigidity than the single-layer cable net and can effectively reduce deformation under wind loads or vertical earthquakes. By laying a folding membrane between the upper and lower stabilizing cables, it has a similar effect to the web of a truss, thereby enhancing the overall stability of the structural system and eliminating the need for connecting cables or rigid rods between the upper and lower layers. At the same time, the folding membrane participates in both structural stress and architectural appearance, greatly improving material utilization. In addition, the folding membrane structure naturally forms a drainage ditch, and rainwater is directly discharged from the high area of the roof to the low area of the outer ring. There is no need to set a drainage pipe under the roof, and the architectural effect is guaranteed.

[0060] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. Any person skilled in the art who, without departing from the scope of the present invention, makes any equivalent substitution, modification, or other changes to the technical solution and technical content disclosed in the present invention shall be deemed to be within the scope of the present invention and still fall within the scope of protection of the present invention.

Claims

1. A double-layer orthogonal large-opening cable membrane structure, characterized in that: include: External compression ring beam and inner ring beam; A plurality of cantilever rods are arranged around the outer pressure ring beam, wherein the cantilever rods are arranged vertically and the top ends are connected to the outer pressure ring beam; a cable net structure stretched between the outer pressure ring beam and the inner ring beam, the cable net structure comprising an upper stabilizing cable, a load-bearing cable and a lower stabilizing cable, the upper stabilizing cable and the load-bearing cable being located above the lower stabilizing cable and being orthogonally distributed, the upper stabilizing cable and the lower stabilizing cable being both arranged along the Y-axis, and the lower stabilizing cable and the upper stabilizing cable being alternately arranged along the X-axis, one end of the upper stabilizing cable and the load-bearing cable being connected to one side of the outer pressure ring beam, and the other end being connected to the inner ring beam or the other side of the outer pressure ring beam, one end of the lower stabilizing cable being connected to the bottom end of a cantilever rod, and the other end being connected to the bottom end of the inner ring beam or another cantilever rod; The folding membrane structure includes several pieces of folding membranes laid between the adjacent upper stabilizing cables and the lower stabilizing cables. The folding membranes are connected to the upper stabilizing cables and the lower stabilizing cables through membrane clamps. The two adjacent upper stabilizing cables, the lower stabilizing cables located between the two adjacent upper stabilizing cables, and the folding membranes laid between the adjacent upper stabilizing cables and the lower stabilizing cables together constitute a V-shaped structure extending in a direction perpendicular to the X-axis.

2. The double-layer orthogonal large-opening cable-membrane structure according to claim 1, characterized in that: The outer pressure ring beam is provided with an annular drainage channel in the circumferential direction and is connected with the V-shaped structure.

3. The double-layer orthogonal large-opening cable-membrane structure according to claim 2, characterized in that: The heights of the external pressure ring beam vary from place to place.

4. The double-layer orthogonal large-opening cable-membrane structure according to claim 3, characterized in that: A rainwater bucket is provided at the lowest position of the annular drainage channel.

5. The double-layer orthogonal large-opening cable-membrane structure according to claim 1, characterized in that: The inner ring beam is a ring cable structure.

6. The double-layer orthogonal large-opening cable-membrane structure according to claim 1, characterized in that: The inner ring beam is a rigid structure.

7. The double-layer orthogonal large-opening cable-membrane structure according to claim 1, characterized in that: The folding surface film is a PVC film, a PTEF film or an ETFE film.

8. A method for installing a double-layer orthogonal large-opening cable membrane structure, characterized in that: The following steps are involved: Installing an external pressure ring beam, and installing a plurality of cantilever rods along the circumference of the external pressure ring beam, so that the top ends of the cantilever rods are connected to the external pressure ring beam; Install the inner ring beam; Installing the cable net structure: installing a load-bearing cable, an upper stabilizing cable, and a lower stabilizing cable in sequence between the outer pressure ring beam and the inner ring beam, wherein the upper stabilizing cable and the load-bearing cable are located above the lower stabilizing cable and are orthogonally distributed, the upper stabilizing cable and the lower stabilizing cable are both arranged along the Y-axis, and the lower stabilizing cable and the upper stabilizing cable are alternately arranged along the X-axis, so that one end of the upper stabilizing cable and the load-bearing cable is connected to one side of the outer pressure ring beam, and the other end is connected to the other side of the inner ring beam or the outer pressure ring beam, and one end of the lower stabilizing cable is connected to the bottom end of a cantilever rod, and the other end is connected to the bottom end of the inner ring beam or another cantilever rod; tensioning the cable net structure to form an integral structure; Install a folding membrane structure, which includes several folding membranes. The folding membranes are laid between the adjacent lower stabilizing cables and the upper stabilizing cables. The folding membranes are connected to the upper stabilizing cables and the lower stabilizing cables through membrane clamps. The two adjacent upper stabilizing cables, the lower stabilizing cables located between the two adjacent upper stabilizing cables, and the folding membranes laid between the adjacent upper stabilizing cables and the lower stabilizing cables together constitute a V-shaped structure extending in a direction perpendicular to the X-axis.

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