A steel membrane structure based on hyperboloid ETFE membrane structure roof surface layer
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-08-11
AI Technical Summary
传统的ETFE膜结构主要是存在节点连接处理不好，容易出现漏雨等质量问题
[0010]本实用新型的有益效果：本实用新型连接可靠、具有良好的防水性能、施工方便。本实用新型的双曲面钢膜结构连接架包括双曲面的由若干个呈网格状分布的网壳杆件构成的主网壳、若干个钢鼓节点，纵向排列的若干个拉膜板水槽，同时满足空间美观和排水坡度要求，而且把大面积ETFE膜结构分隔成多个独立膜单元，减少膜大面积张拉困难和膜积水沉陷问题；拉膜板水槽内部设置折型拉膜板、铝合金扣槽等，两个拉膜板水槽之间通过折型拉膜板、不锈钢螺栓、铝合金扣槽连接双曲面ETFE膜单元，可避免膜张拉后长时间的松弛问题；且拉膜板水槽上边缘设有EPDM橡胶片，用于缓冲应力；拉膜板水槽上上部设置铝合金盖板、ETFE防水膜，遮盖拉膜板水槽内部，避免雨水对内部节点的腐蚀，同时若出现少量渗水现象，积水可直接进入双曲面的拉膜板水槽，并顺着水槽坡度通过拉膜板水槽两端开口顺利排出。
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Figure CN224620934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer, belonging to the technical field of protective devices. Background Technology
[0002] ETFE membrane is an ethylene-tetrafluoroethylene copolymer film with good light transmittance, often referred to as "soft glass." It is lightweight, weighing approximately 1% of glass of the same size; it possesses good toughness, high tensile strength, and is not easily torn, with an elongation greater than 400%; it exhibits excellent weather resistance and strong chemical corrosion resistance, with a melting temperature as high as 200℃, resulting in a long service life; and it has good anti-stick surface properties, allowing rainwater to wash away small amounts of dirt. With the diversified development and personalized needs of cities, ETFE membranes are increasingly being used for roofing and facade cladding of buildings such as port entrances, stadiums, airports, high-speed rail stations, commercial plazas, and urban landscapes. However, traditional ETFE membrane structures are prone to quality problems such as leaks due to poor joint connections. The traditional method of connecting steel structures and ETFE membranes involves fixing the edges of the ETFE membrane to the steel structure using aluminum alloy clamps or pressure plates, and using rubber pads to buffer stress and prevent the membrane from tearing. The disadvantages are that because large-area membranes require large tension, they are prone to loosening or edge detachment over time, resulting in insufficient stability, easy sinking in the middle of the membrane, and water accumulation and edge leakage problems in heavy rain. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a steel membrane structure based on the hyperboloid ETFE membrane structure roof surface.
[0004] The technical solution provided by this utility model is as follows: A steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer, comprising a steel structure and a hyperboloid ETFE membrane structure; characterized in that the steel structure and the hyperboloid ETFE membrane structure are connected by a hyperboloid steel membrane structure connecting frame, the hyperboloid ETFE membrane structure comprising a plurality of hyperboloid ETFE membrane units; the hyperboloid steel membrane structure connecting frame comprises a grid frame with four arc-shaped corners, the grid frame connecting the hyperboloid main grid shell and a plurality of steel drum nodes, the steel drum node in the middle being cylindrical. The two outermost longitudinal rows of steel drum nodes are semi-cylindrical, with adjacent rows of steel drum nodes spaced apart. The main shell is composed of several grid-distributed shell members connected to the steel drum nodes and the shell frame. The longitudinal steel drum nodes and shell members are connected to the hyperboloid membrane plate water tanks with openings at both ends by several stiffening plates. One hyperboloid ETFE membrane unit is connected between every two membrane plate water tanks. Several folded stiffening plates are connected to the inner side walls of the middle membrane plate water tank. Several folded stiffening plates are connected to the inner side walls of the two outermost membrane plate water tanks. Each folded stiffening plate is connected to a folded membrane plate. Each folded membrane plate is connected to an aluminum alloy buckle through stainless steel bolts. The aluminum alloy buckle is connected to the edge of the hyperboloid ETFE membrane unit. The middle of the membrane plate water tank is supported and connected to a square tube by several stiffening plates. ETFE waterproof membranes are provided on both sides of the upper part of the square tube. An aluminum alloy cover plate is connected to the square tube.
[0005] Furthermore, the upper edge of the membrane plate water tank is provided with an EPDM rubber sheet.
[0006] Furthermore, the spacing between the membrane plate water tanks is 1.5m, the spacing between the stiffening plates is 1m, the spacing between the folded stiffening plates is 400mm, and the spacing between the stiffening plate supports is 800mm.
[0007] Furthermore, the diameter of the steel drum node is 500mm.
[0008] Furthermore, the membrane surface of the ETFE membrane unit is welded to the ETFE waterproof membrane.
[0009] Furthermore, the steel structure includes two rows of evenly distributed steel structure support columns, with diagonal bracing members connected to the upper part of the steel structure support columns. The upper ends of the steel structure support columns and diagonal bracing members are respectively connected to the grid shell members and the steel drum nodes.
[0010] The beneficial effects of this utility model are: reliable connection, good waterproof performance, and convenient construction. The hyperboloid steel membrane structure connecting frame of this utility model includes a main mesh shell composed of several grid-distributed mesh shell members, several steel drum nodes, and several longitudinally arranged membrane plate water channels. It simultaneously meets the requirements of spatial aesthetics and drainage slope, and divides the large-area ETFE membrane structure into multiple independent membrane units, reducing the difficulty of large-area membrane tensioning and the problem of membrane water accumulation and subsidence. The membrane plate water channels are equipped with folded membrane plates, aluminum alloy buckles, etc., and the two membrane plate water channels are connected by folded membrane plates... Stainless steel bolts and aluminum alloy fasteners connect the hyperboloid ETFE membrane units, preventing long-term relaxation after membrane tensioning. EPDM rubber sheets are installed on the upper edge of the membrane plate water channel to buffer stress. An aluminum alloy cover plate and ETFE waterproof membrane are installed on the upper part of the membrane plate water channel to cover the inside, preventing rainwater corrosion of internal nodes. In case of minor seepage, the water can directly enter the hyperboloid membrane plate water channel and drain smoothly through the openings at both ends of the channel along its slope. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the hyperboloid steel membrane structure connecting frame and the hyperboloid ETFE membrane structure of this utility model; Figure 3 This is a schematic diagram of the connection structure between the hyperboloid steel membrane structure connecting frame and the steel structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the membrane plate water tank and the main mesh shell of the hyperboloid steel membrane structure connecting frame of this utility model; Figure 5 This is a partial structural schematic diagram of the main mesh shell and steel drum node of the hyperboloid steel membrane structure connecting frame of this utility model; Figure 6 This is a schematic diagram of the connection structure between the membrane plate water tank in the middle of this utility model and the hyperboloid ETFE membrane unit.
[0012] In the diagram: 1. Steel structure; 2. Hyperboloid ETFE membrane structure; 3. Hyperboloid steel membrane structure connecting frame; 11. Steel structure support column; 12. Diagonal bracing member; 21. Hyperboloid ETFE membrane unit; 30. Grid shell frame; 31. Steel drum node; 32. Grid shell member; 33. Tensioned membrane plate water channel; 34. Main grid shell; 35. Folded stiffening plate; 36. Folded tensioned membrane plate; 37. Aluminum alloy buckle groove; 38. EPDM rubber sheet; 39. Stiffening plate support; 40. Square tube; 41. ETFE waterproof membrane; 42. Aluminum alloy cover plate; 43. Stiffening plate. Detailed Implementation
[0013] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings: like Figures 1-6 As shown, a steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer includes a steel structure 1, a hyperboloid ETFE membrane structure 2, and a hyperboloid steel membrane structure connecting frame 3 connecting the steel structure and the hyperboloid ETFE membrane structure. The hyperboloid ETFE membrane structure 2 includes a plurality of hyperboloid ETFE membrane units 21. The hyperboloid steel membrane structure connecting frame 3 includes a grid frame 30, the four corners of which are arc-shaped. The inner side of the grid frame 30 is connected to the hyperboloid main grid shell 34 and several steel drum nodes 31. The middle steel drum node 31 is cylindrical, and the two outermost longitudinal rows of steel drum nodes 31 are semi-cylindrical. The diameter of each steel drum node 31 is 500mm. The two adjacent rows of steel drum nodes 31 are spaced apart. The main grid shell 34 is composed of several grid shell members 32 that are connected to the steel drum nodes 31 and the grid frame 30 respectively and are distributed in a grid pattern. The longitudinal rows of steel drum nodes 31 and grid shell members 32 are connected to the membrane plate water tanks 33 with openings at both ends of the hyperboloid by several stiffening plates 43 with a spacing of 1m. The upper edge of the membrane plate water tank 33 is provided with EPDM rubber sheet 38. One hyperboloid ETFE membrane unit 21 is connected between every two membrane plate water tanks 33. The distance between the two membrane plate water tanks 33 is 1.5m. Several folded stiffening plates 35 with a spacing of 400mm are connected to the inner side walls of the middle membrane plate water tank 33. Several folded stiffening plates 35 with a spacing of 400mm are connected to the inner side walls of the two outermost membrane plate water tanks 33. Each folded stiffening plate 35 is connected to a folded membrane plate 36. Each folded membrane plate 36 is connected to an aluminum alloy fastener 37 by two stainless steel bolts. The aluminum alloy fastener 37 is connected to the edge of the hyperboloid ETFE membrane unit 21. The membrane surface of the hyperboloid ETFE membrane unit 21 after tensioning is adjusted and fixed by stainless steel bolts. A continuous square tube 40 is connected to the middle of the membrane plate water tank 33 by several stiffening plates 39 with a spacing of 800mm. A continuous ETFE waterproof membrane 41 is provided on both sides of the upper part of the square tube 40 to cover the membrane plate water tank 33. An aluminum alloy cover plate 42 is connected to the square tube 40 by self-tapping screws. The membrane surface of ETFE membrane unit 21 is connected to the continuous ETFE waterproof membrane 41 by welding to ensure overall sealing. ETFE membrane has a maximum elongation of 350%, and the membrane strength decreases with stress and strain. Therefore, the ETFE membrane surface should be tensioned slowly and in one go to avoid damage to the membrane due to repeated tensioning.
[0014] The steel structure 1 includes two rows of evenly distributed steel structure support columns 11, with diagonal bracing members 12 connected to the upper part of the steel structure support columns 11. In this embodiment, there are four diagonal bracing members 12, evenly distributed; the upper ends of the steel structure support columns 11 and the diagonal bracing members 12 are respectively connected to the grid shell members 32 and the steel drum node 31.
[0015] It should be understood that any parts not described in detail in this specification belong to the prior art. The above embodiments are merely descriptions of preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and improvements to the technical solutions of this utility model made by those skilled in the art without departing from the spirit of this utility model should fall within the protection scope defined by the claims of this utility model.
Claims
1. A steel membrane structure based on a hyperboloid ETFE membrane structure roofing layer, comprising a steel structure and a hyperboloid ETFE membrane structure; characterized in that, The steel structure and the hyperboloid ETFE membrane structure are connected by a hyperboloid steel membrane structure connecting frame. The hyperboloid ETFE membrane structure comprises several hyperboloid ETFE membrane units. The hyperboloid steel membrane structure connecting frame includes a grid frame with four arc-shaped corners. The grid frame connects the main grid shell of the hyperboloid and several steel drum nodes. The steel drum nodes in the middle are cylindrical, and the two outermost longitudinal rows of steel drum nodes are semi-cylindrical. Adjacent rows of steel drum nodes are spaced apart. The main grid shell consists of several grid-distributed grid shell members connected to the steel drum nodes and the grid shell frame. The longitudinal rows of steel drum nodes and grid shell members are connected to the hyperboloid through several stiffening plates. The membrane plate water tank is open at both ends. One hyperboloid ETFE membrane unit is connected between every two membrane plate water tanks. Several folded stiffening plates are connected to the inner side walls of the middle membrane plate water tank. Several folded stiffening plates are connected to the inner side walls of the two outermost membrane plate water tanks. Each folded stiffening plate is connected to a folded membrane plate. Each folded membrane plate is connected to an aluminum alloy buckle through stainless steel bolts. The aluminum alloy buckle is connected to the edge of the hyperboloid ETFE membrane unit. A square tube is supported and connected in the middle of the membrane plate water tank by several stiffening plates. ETFE waterproof membranes are installed on both sides of the upper part of the square tube. An aluminum alloy cover plate is connected to the square tube.
2. The steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer according to claim 1, characterized in that... The upper edge of the membrane plate water tank is provided with an EPDM rubber sheet.
3. A steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer according to claim 1, characterized in that... The spacing between the membrane plate water tanks is 1.5m, the spacing between the stiffening plates is 1m, the spacing between the folded stiffening plates is 400mm, and the spacing between the stiffening plate supports is 800mm.
4. A steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer according to claim 1, characterized in that... The diameter of the steel drum node is 500mm.
5. A steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer according to claim 1, characterized in that... The membrane surface of the ETFE membrane unit is welded to the ETFE waterproof membrane.
6. A steel membrane structure based on a hyperboloid ETFE membrane structure roof surface layer according to claim 1, characterized in that... The steel structure includes two rows of evenly distributed steel structure support columns, with diagonal bracing members connected to the upper part of the steel structure support columns. The upper ends of the steel structure support columns and diagonal bracing members are respectively connected to the grid shell members and the steel drum nodes.