ETFE membrane unitization self-adaptive supporting structure and construction method

Abstract

The invention discloses an ETFE membrane unitization self-adaptive supporting structure and a construction method, and relates to the field of roof covering layers. The ETFE membrane unitization self-adaptive supporting structure comprises a frame body formed by connecting a plurality of aluminum alloy beams and an air pillow, the edge of the air pillow is connected to the aluminum alloy beams, the ETFE membrane unitization self-adaptive supporting structure further comprises a plurality of self-balancing supporting modules and a plurality of inflation devices, the bottom of each aluminum alloy beam is connected with the self-balancing supporting modules, and the inflation devices are connected with the self-balancing supporting modules. The self-balancing supporting module comprises a supporting air cylinder internally provided with a piston, a piston rod with the two ends connected with the piston and the aluminum alloy beam respectively and ventilation pipes communicating a rodless cavity of the supporting air cylinder with the air pillow, and each inflation device is connected with one ventilation pipe through an air inlet pipe. According to the ETFE membrane unitization self-adaptive supporting structure and the construction method, the self-balancing supporting module is used for supporting the aluminum alloy beam connected with the edge of the air pillow, a supporting air cylinder in the self-balancing supporting module can be used for driving the aluminum alloy beam to ascend and descend to adjust the height so as to make up the construction height error, and it is guaranteed that the pre-tension of the air pillow is uniform and the form is stable.

Description

Technical Field

[0001] The present application relates to the field of roof coverings, and in particular to an ETFE membrane unitized adaptive support structure and a construction method. Background Art

[0002] ETFE membrane structure has shown broad application prospects in the field of construction due to its unique material properties. However, the supporting structure based on ETFE membrane structure has certain technical bottlenecks. Due to construction errors, thermal expansion and contraction, and load deformation of the steel structure, the installation elevation deviation may reach more than ±20mm, which may easily lead to uneven pre-tensioning of the ETFE membrane structure unit, affecting the air tightness of the air pillow and the shape retention of the ETFE membrane structure, thereby affecting the actual use and appearance of the ETFE membrane structure.

[0003] Therefore, an ETFE membrane structure capable of adaptively changing height is needed to overcome the above defects. Summary of the Invention

[0004] The purpose of this application is to provide an ETFE membrane unitized adaptive support structure and construction method, which can drive the aluminum alloy beam to rise and fall to adjust the height to compensate for the construction height error and ensure uniform pre-tension of the air pillow and stable shape.

[0005] This application is implemented as follows: The present application provides an ETFE membrane unitized adaptive support structure, which includes a frame body and an air pillow formed by connecting multiple aluminum alloy beams. The edges of the air pillow are connected to each aluminum alloy beam. It also includes multiple self-balancing support modules and multiple inflation devices. The bottom of each aluminum alloy beam is connected to multiple self-balancing support modules. The self-balancing support module includes a support cylinder with a piston inside, a piston rod with the piston and the aluminum alloy beam connected at both ends, and a ventilation pipe connecting the rodless cavity of the support cylinder and the air pillow. Each inflation device is connected to a ventilation pipe through an air inlet pipe.

[0006] In some optional embodiments, a control valve is provided at the connection between the rodless chamber of the support cylinder and the vent pipe.

[0007] In some optional embodiments, at least one spring is provided in the rod cavity of the support cylinder, and two ends of the spring press against the piston and the inner wall of the rod cavity respectively.

[0008] In some optional embodiments, a sealing rubber pad is provided on the side of the piston facing the rodless cavity.

[0009] In some optional embodiments, multiple air guide tubes are further included, each of which is connected to the ventilation tubes of multiple self-balancing support modules.

[0010] In some optional embodiments, a connecting plate is connected to the end of the piston rod away from the piston, and the connecting plate is connected to the aluminum alloy beam through a plurality of connecting bolts. A buffer rubber pad is provided on the side of the connecting plate close to the aluminum alloy beam.

[0011] In some optional embodiments, the aluminum alloy beam includes a thermally-broken aluminum profile and an aluminum cover plate connected to the top surface of the thermally-broken aluminum profile by multiple fixing bolts. One side edge of the air cushion extends between the thermally-broken aluminum profile and the aluminum cover plate and is connected to the top surface of the thermally-broken aluminum profile. The top surface of the thermally-broken aluminum profile is also provided with an electric heating wire for melting the air cushion.

[0012] In some optional embodiments, the top surface of the thermally-broken aluminum profile and the bottom surface of the aluminum cover plate are respectively connected to a first rubber strip and a second rubber strip that press against the bottom and top of one side edge of the air cushion.

[0013] In some optional embodiments, a plurality of support beams are further included, each support beam being connected to the support cylinders of a plurality of self-balancing support modules.

[0014] The present application also provides a construction method of the above-mentioned ETFE membrane unitized adaptive support structure, comprising the following steps: Fix the support cylinders of each self-balancing support module, lift the aluminum alloy beam, and connect the piston rods of the support cylinders to the bottom of the aluminum alloy beam; Connecting the aluminum alloy beams to form a frame body; Connect the edges of the air cushion to each aluminum alloy beam respectively; Use a vent pipe to connect the rodless cavity and air pillow of each support cylinder; The inflation device is connected to a vent pipe through an air inlet pipe.

[0015] The beneficial effects of the present application are as follows: the ETFE membrane unitized adaptive support structure provided by the present application includes a frame body and an air pillow formed by connecting multiple aluminum alloy beams, the edges of the air pillow are connected to each aluminum alloy beam, and also includes multiple self-balancing support modules and multiple inflation devices. The bottom of each aluminum alloy beam is connected to multiple self-balancing support modules, and the self-balancing support module includes a support cylinder with a piston inside, a piston rod with the piston and the aluminum alloy beam connected at both ends, and a ventilation pipe connecting the rodless cavity of the support cylinder and the air pillow, and each inflation device is connected to a ventilation pipe through an air inlet pipe. The ETFE membrane unitized adaptive support structure and construction method provided by the present application uses self-balancing support modules to support the aluminum alloy beam connected to the edge of the air pillow, and can use the support cylinder in the self-balancing support module to drive the aluminum alloy beam to rise and fall to adjust the height to compensate for the construction height error, thereby ensuring uniform pre-tensioning and stable shape of the air pillow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of the ETFE membrane unitized adaptive support structure provided in an embodiment of the present application, in which aluminum alloy beams are connected to form a frame body; Figure 2 A schematic diagram of the partial structure of the connection between the aluminum alloy beam, air pillow, self-balancing support module, inflatable device and support beam in the ETFE membrane unitized adaptive support structure provided in an embodiment of the present application; Figure 3 A schematic diagram of the partial structure of the connection between the aluminum alloy beam, the self-balancing support module, the inflatable device and the support beam in the ETFE membrane unitized adaptive support structure provided in an embodiment of the present application; Figure 4 This is a schematic diagram of the partial cross-sectional structure of the connection between the aluminum alloy beam, air pillow, self-balancing support module, inflation device and support beam in the ETFE membrane unitized adaptive support structure provided in an embodiment of the present application.

[0018] In the figure: 100, frame body; 110, air cushion; 200, aluminum alloy beam; 210, thermal break aluminum profile; 220, fixing bolt; 230, aluminum cover; 240, heating wire; 250, first rubber strip; 260, second rubber strip; 300, self-balancing support module; 310, support cylinder; 311, control valve; 312, sealing rubber pad; 320, piston; 330, piston rod; 340, ventilation pipe; 350, spring; 360, air guide pipe; 370, connecting plate; 380, connecting bolt; 390, buffer rubber pad; 400, inflation device; 410, intake pipe; 500, support beam. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0026] The features and performance of the ETFE membrane unitized adaptive support structure and construction method of the present application are further described in detail below with reference to the embodiments.

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the embodiment of the present application provides an ETFE membrane unitized adaptive support structure, which includes a frame body 100, an air pillow 110, self-balancing support modules 300 arranged at intervals, and an inflation device 400 arranged at intervals. The frame body 100 is composed of three aluminum alloy beams 200 connected in sequence. A support beam 500 is provided below each aluminum alloy beam 200. The air pillow 110 is provided on the inner side of the frame body 100 and its edges are respectively connected to each aluminum alloy beam 200. The bottom of each aluminum alloy beam 200 is connected to three self-balancing support modules 300 arranged at intervals along its length; each support beam 500 is connected to the support cylinder 310 of each self-balancing support module 300 at the bottom of the corresponding aluminum alloy beam 200; Among them, the aluminum alloy beam 200 includes a thermally broken aluminum profile 210 and an aluminum cover plate 230 connected to the top surface of the thermally broken aluminum profile 210 by spaced fixing bolts 220. One side edge of the air pillow 110 extends between the thermally broken aluminum profile 210 and the aluminum cover plate 230 and is connected to the top surface of the thermally broken aluminum profile 210. The top surface of the thermally broken aluminum profile 210 is also provided with a heating wire 240 for melting the air pillow 110. The top surface of the thermally broken aluminum profile 210 and the bottom surface of the aluminum cover plate 230 are respectively connected to the first rubber strip 250 and the second rubber strip 260 that press against the bottom and top of one side edge of the air pillow 110.

[0028] The self-balancing support module 300 includes a support cylinder 310 with a piston 320 therein, a piston rod 330 with one end extending into the support cylinder 310 and connected to the piston 320, and a ventilation pipe 340 connecting the rodless cavity of the support cylinder 310 and the air pillow 110. A control valve 311 is provided at the connection between the rodless cavity of the support cylinder 310 and the ventilation pipe 340; two springs 350 are provided in the rod cavity of the support cylinder 310, and the two ends of the spring 350 respectively press against the piston 320 and the inner wall of the rod cavity, and a sealing rubber pad 312 is provided on the side of the piston 320 facing the rodless cavity. The end of the piston rod 330 away from the piston 320 is connected to a connecting plate 370, and the connecting plate 370 is connected to the bottom of the corresponding aluminum alloy beam 200 through four connecting bolts 380. A buffer rubber pad 390 is provided on the side of the connecting plate 370 close to the aluminum alloy beam 200. The ventilation pipes 340 of the three self-balancing support modules 300 at the bottom of each aluminum alloy beam 200 are connected through air guide pipes 360 respectively; each inflation device 400 is connected to a ventilation pipe 340 through an air intake pipe 410.

[0029] The present application also provides a method for constructing the above-mentioned ETFE membrane unitized adaptive support structure, comprising the following steps: Step 1: Pre-process the components of the self-balancing support module 300, weld and fix the bottom of the support cylinder 310 of each self-balancing support module 300 to the top of the corresponding support beam 500, lift the aluminum alloy beam 200 and move it to the preset position, weld the piston rod 330 of each support cylinder 310 to the connecting plate 370, and connect the connecting plate 370 to the bottom of the thermal break aluminum profile 210 of the corresponding aluminum alloy beam 200 via connecting bolts 380; Step 2: Install a heating wire 240 on the top surface of the thermally-insulated aluminum profile 210 of each aluminum alloy beam 200, and then connect a first rubber strip 250 and a second rubber strip 260 to the top surface of the thermally-insulated aluminum profile 210 and the bottom surface of the aluminum cover plate 230, respectively, to connect the thermally-insulated aluminum profiles 210 of each aluminum alloy beam 200; Step 3: Connect the edges of the air cushion 110 to the top surfaces of the thermally-insulated aluminum profiles 210 of each aluminum alloy beam 200, and connect each thermally-insulated aluminum profile 210 to the corresponding aluminum cover plate 230 via fixed bolts 220 arranged at intervals to form the frame body 100; Step 4: Use the vent pipe 340 to connect the rodless cavity of each supporting cylinder 310 and the air pillow 110 respectively; Step 5: Connect each inflation device 400 to the corresponding ventilation pipe 340 through the air inlet pipe 410.

[0030] The ETFE membrane unitized adaptive support structure and construction method provided in the embodiment of the present application are provided by setting a self-balancing support module 300 to support the aluminum alloy beam 200 connected to the edge of the air pillow 110. At the same time, the self-balancing support module 300 includes a support cylinder 310 with a piston rod 330 connected to the aluminum alloy beam 200 and a ventilation pipe 340 respectively connected to the rodless cavity of the support cylinder and the air pillow 110, and an inflation device 400 is provided to connect the ventilation pipe 340 through the air inlet pipe 410. When the inflation device 400 passes compressed air into the air pillow 110 through the air inlet pipe 410, the rodless cavity of the support cylinder 310 and the ventilation pipe are controlled. The control valve 311 at the connection of 340 is opened, allowing compressed air to flow into the rodless chamber of the support cylinder 310 to push the piston 320 and the piston rod 330 to rise, so that the aluminum alloy beam 200 drives the edge of the air pillow 110 to rise, thereby innovatively using the self-balancing support module 300 with dynamic compensation function to adjust the edge height of the aluminum alloy beam 200 and the air pillow 110, solving the three-dimensional spatial shape and position cumulative deviation of the main structure caused by the traditional rigid connection process, and successfully controlling the installation accuracy of the ETFE membrane unit within the range of ±2mm, ensuring the uniform pre-tension of the ETFE membrane structure unit and the stable shape of the ETFE membrane structure.

[0031] Two springs 350 are installed within the rod chamber of the support cylinder 310. The ends of the springs 350 press against the piston 320 and the inner wall of the rod chamber, respectively. The springs 350 ensure that air from the inflator 400, introduced through the air inlet pipe 410 into the rodless chamber of the support cylinder 310, steadily pushes the piston 320 to move. A sealing rubber pad 312 is installed on the side of the piston 320 facing the rodless chamber to improve the airtightness of the piston 320. The end of the piston rod 330 facing away from the piston 320 is connected to a connecting plate 370. This connecting plate 370 is connected to the bottom of the corresponding aluminum alloy beam 200 via four connecting bolts 380. A buffer rubber pad 390 is installed on the side of the connecting plate 370 near the aluminum alloy beam 200 to ensure that the piston rod 330 steadily pushes the aluminum alloy beam 200 up and down. The ventilation pipes 340 of the three self-balancing support modules 300 at the bottom of each aluminum alloy beam 200 are connected to each other through air guide pipes 360. The air guide pipes 360 can be used to ensure that the pressure in the ventilation pipes 340 and the rodless cavity of the support cylinder 310 of multiple adjacent self-balancing support modules 300 is consistent, thereby ensuring that the piston rods 330 of multiple adjacent self-balancing support modules 300 push the aluminum alloy beams 200 up and down to the same height.

[0032] In addition, the aluminum alloy beam 200 is composed of a thermal break aluminum profile 210 and an aluminum cover plate 230 connected to the top surface of the thermal break aluminum profile 210 by fixed bolts 220 arranged at intervals to clamp and fix one side edge of the air pillow 110, and a heating wire 240 for melting the air pillow 110 is provided on the top surface of the thermal break aluminum profile 210. The fusing device and the heating wire 240 can be integrated into the structure of the aluminum alloy beam 200, solving the safety hazards such as oxidation and rust caused by long-term exposure of the traditional external heating wire 240 to the harsh outdoor environment, and making the service life of the heating wire 240 significantly longer. The service life of the equipment can be significantly extended, while the maintenance cost and the frequency of fault downtime throughout its life cycle are greatly reduced; at the same time, the top surface of the thermally broken aluminum profile 210 and the bottom surface of the aluminum cover plate 230 are respectively connected with the first rubber strip 250 and the second rubber strip 260 that press against the bottom and top of one side edge of the air pillow 110, which can improve the sealing performance of the connection between the thermally broken aluminum profile 210 and the aluminum cover plate 230 and the edge of the air pillow 110, avoid external rainwater from entering the thermally broken aluminum profile 210 and the aluminum cover plate 230, solve the problem of water leakage at the connection of the aluminum alloy beam 200, and significantly reduce the comprehensive construction cost and subsequent maintenance costs.

[0033] In other optional embodiments, the frame body 100 may also be composed of four or more aluminum alloy beams 200 connected in sequence.

[0034] In other optional embodiments, the bottom of each aluminum alloy beam 200 may be connected to one, two, three or more self-balancing support modules 300 .

[0035] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. An ETFE membrane unitized adaptive support structure, comprising a frame body and an air pillow formed by connecting multiple aluminum alloy beams, wherein the edges of the air pillow are connected to each of the aluminum alloy beams, characterized in that: It also includes multiple self-balancing support modules and multiple inflation devices. The bottom of each aluminum alloy beam is connected to multiple self-balancing support modules. The self-balancing support module includes a support cylinder with a piston inside, a piston rod with two ends respectively connected to the piston and the aluminum alloy beam, and a ventilation pipe connecting the rodless cavity of the support cylinder and the air pillow. Each inflation device is connected to a ventilation pipe through an air inlet pipe.

2. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: A control valve is provided at the connection between the rodless chamber of the supporting cylinder and the vent pipe.

3. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: At least one spring is provided in the rod cavity of the supporting cylinder, and two ends of the spring press against the piston and the inner wall of the rod cavity respectively.

4. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: A sealing rubber pad is provided on the side of the piston facing the rodless cavity.

5. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: It also includes a plurality of air guide pipes, each of which is connected to the ventilation pipes of a plurality of the self-balancing support modules.

6. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: One end of the piston rod away from the piston is connected to a connecting plate, and the connecting plate is connected to the aluminum alloy beam through a plurality of connecting bolts. A buffer rubber pad is provided on a side of the connecting plate close to the aluminum alloy beam.

7. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: The aluminum alloy beam includes a thermally broken aluminum profile and an aluminum cover plate connected to the top surface of the thermally broken aluminum profile by multiple fixing bolts. One side edge of the air pillow extends between the thermally broken aluminum profile and the aluminum cover plate and is connected to the top surface of the thermally broken aluminum profile. The top surface of the thermally broken aluminum profile is also provided with a heating wire for melting the air pillow.

8. The ETFE membrane unitized adaptive support structure according to claim 7, characterized in that: The top surface of the thermal break aluminum profile and the bottom surface of the aluminum cover plate are respectively connected with a first rubber strip and a second rubber strip that press against the bottom and top of one side edge of the air pillow.

9. The ETFE membrane unitized adaptive support structure according to claim 1, characterized in that: It also includes a plurality of support beams, each of which is connected to the support cylinders of a plurality of the self-balancing support modules.

10. The construction method of the ETFE membrane unitized adaptive support structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Fix the support cylinders of each self-balancing support module, lift the aluminum alloy beam, and connect the piston rods of the support cylinders to the bottom of the aluminum alloy beam; Connecting the aluminum alloy beams to form a frame body; Connecting the edges of the air cushion to the aluminum alloy beams respectively; Use a vent pipe to connect the rodless chambers of each supporting cylinder and the air pillow; The inflation device is connected to the vent pipe through the air inlet pipe.

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