PTFE film fixing structure for large-span irregular steel structure roof

Abstract

The invention discloses a PTFE membrane fixing structure for a large-span irregular steel structure roof, the PTFE membrane fixing structure is fixed on the steel structure roof or a steel structure support cylinder, and is fixedly connected with a PTFE membrane, the PTFE membrane fixing structure comprises PTFE membrane fixing assemblies for fixing the PTFE membrane at different positions of the steel structure roof, and the PTFE membrane fixing assemblies are fixed on the steel structure roof or the steel structure support cylinder. The PTFE film fixing assembly is used for fixing the PTFE film at the connecting position of the steel structure roof and the steel structure supporting cylinder, and the PTFE film fixing assemblies are used for fixing the PTFE film at different positions of the steel structure supporting cylinder. Therefore, whether the PTFE film is fixed on the steel structure roof, the PTFE film is fixed at the connecting position of the steel structure roof and the steel structure supporting cylinder or the PTFE film is fixed on the steel structure supporting cylinder, the PTFE film can be ensured to be attached, and further each PTFE film can show the advantages and effects of the film material on the radian, the curve and the curved surface.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a PTFE membrane fixing structure for a large-span irregular steel structure roof. Background Art

[0002] With the development of the construction industry in recent years, traditional buildings have been given new requirements. While meeting their functional needs, they must also be able to reflect unique cultural characteristics in their design. Therefore, the number of buildings with complex designs and various shapes is increasing.

[0003] The roof steel structure generally adopts a three-dimensional grid single-layer lattice shell steel structure. The traditional three-dimensional grid single-layer lattice shell steel structure is mostly used for flat roofs and has relatively simple support. The roof of a certain large museum project has a complex design and a curved surface with large up and down fluctuations. As a result, the three-dimensional grid single-layer lattice shell steel structure of the roof has a large up and down fluctuation, and the top support point may not be on the same horizontal plane. When performing PTFE membrane fixing construction, if the traditional PTFE membrane fixing construction method is used, the advantages and effects of the membrane material will definitely not be demonstrated, and the structure of the support tube will be relatively complex. When performing PTFE membrane fixing construction, the construction difficulty is also relatively large. Therefore, there is an urgent need for a PTFE membrane fixing structure for large-span irregular steel structure roofs to ensure that each membrane unit can demonstrate the advantages and effects of the membrane material on arcs, curves, and surfaces. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention designs a PTFE membrane fixing structure for large-span irregular steel structure roofs, the PTFE membrane fixing structure is fixed on the steel structure roof or the steel structure support tube, and is fixedly connected to the PTFE membrane, wherein the PTFE membrane fixing structure includes: a first PTFE membrane fixing component, a second PTFE membrane fixing component, a third PTFE membrane fixing component, a fourth PTFE membrane fixing component, a fifth PTFE membrane fixing component and a sixth PTFE membrane fixing component; wherein the first PTFE membrane fixing component, the second PTFE membrane fixing component, the third PTFE membrane fixing component and the fourth PTFE membrane fixing component are installed on the steel structure roof; the first PTFE membrane fixing component is arranged at the edge position of the steel structure roof, and is used to fix the edge position of the steel structure roof PTFE membrane; the second PTFE membrane fixing assembly is arranged at the butt joint of adjacent PTFE membranes, for fixing adjacent PTFE membranes; the third PTFE membrane fixing assembly is used to fix the central position of the PTFE membrane; the fourth PTFE membrane fixing assembly is arranged at the connection position between the steel structure roof and the steel structure support tube, for fixing the PTFE membrane at the connection position between the steel structure roof and the steel structure support tube; the fifth PTFE membrane fixing assembly and the sixth PTFE membrane fixing assembly are installed on the steel structure support tube; the fifth PTFE membrane fixing assembly is arranged at the butt joint of adjacent PTFE membranes, for fixing adjacent PTFE membranes; the sixth PTFE membrane fixing assembly is arranged at the bottom of the steel structure support tube, for fixing the PTFE membrane at the bottom of the steel structure support tube, and connected to the building located below the steel structure support tube.

[0005] Preferably, the first PTFE membrane fixing assembly includes: a first support member, a first film-pulling member, a first waterproof member and a second waterproof member; wherein, the first support member is installed on the steel structure roof; the first film-pulling member is installed on the first support member and is fixedly connected to the PTFE membrane; the first waterproof member is arranged on the outside of the first support member, and the bottom is installed on the steel structure roof and the top is installed on the first film-pulling member; the second waterproof member is installed on the first waterproof member.

[0006] Preferably, the second PTFE membrane fixing assembly includes: a second support member, a second film-pulling member and a third waterproof member; wherein, the second support member is installed on the steel structure roof; the number of second film-pulling members is two, and both second film-pulling members are installed on the second support member, and both second film-pulling members are fixedly connected to the PTFE membrane; the third waterproof member is arranged above the two second film-pulling members.

[0007] Preferably, the fourth PTFE membrane fixing assembly includes: a fourth support member, a fourth film-pulling member, a fourth waterproof member and a fifth waterproof member; wherein, the fourth support member is installed on the steel structure roof; the number of fourth film-pulling members is two, and the two fourth film-pulling members are both installed on the fourth support member, one of the fourth film-pulling members is fixedly connected to the PTFE membrane, the other fourth film-pulling member is connected to the fifth waterproof member, and the fifth waterproof member is connected to the steel structure support tube; the fourth waterproof member is arranged above the two fourth film-pulling members.

[0008] Preferably, the fifth PTFE membrane fixing assembly includes: a fifth support member, a fifth film-pulling member and a sixth waterproof member; wherein, the fifth support member is installed on the steel structure support tube; the number of the fifth film-pulling members is two, and the two fifth film-pulling members are both installed on the fifth support member, and the two fifth film-pulling members are both fixedly connected to the PTFE membrane; the sixth waterproof member is arranged above the two fifth film-pulling members.

[0009] Preferably, the first film-pulling member, the second film-pulling member, the fourth film-pulling member and the fifth film-pulling member have the same structure and all include: a first fixing member, a second fixing member and a first membrane connecting member; wherein, the first fixing member is installed on the first support member, the second support member, the fourth support member or the fifth support member through the second fixing member; the first membrane connecting member is fixedly arranged on the first fixing member and is fixedly connected to the PTFE membrane.

[0010] Preferably, the third PTFE membrane fixing assembly includes: a third support member and a third film-pulling member; wherein, the third support member is installed on the steel structure roof; the third film-pulling member is installed on the third support member, and the third film-pulling member is fixedly connected to the PTFE membrane; the third film-pulling member includes: a third fixing member, a fourth fixing member, a fifth fixing member, a sixth fixing member and a second membrane connecting member; wherein, the third fixing member is fixed on the third support member; the fourth fixing member is fixed on the third fixing member; the sixth fixing member is fixed on the fourth fixing member through the fifth fixing member; the second membrane connecting member is fixedly arranged on the sixth fixing member, and the second membrane connecting member is fixedly connected to the PTFE membrane.

[0011] Preferably, the sixth PTFE membrane fixing assembly includes: a sixth support member, a sixth film-pulling member and a bottom waterproof assembly; wherein, the sixth support member is installed on the steel structure support tube; the sixth film-pulling member is installed on the sixth support member and is fixedly connected to the PTFE membrane; the bottom waterproof assembly is arranged on the outside of the sixth film-pulling member, the bottom is installed on the bottom of the sixth support member, and is connected to the building located below the steel structure support tube, and the top is installed on the top of the sixth support member and is fixedly connected to the PTFE membrane.

[0012] Preferably, the sixth film-pulling member includes: a seventh fixing member, an eighth fixing member and a third membrane connecting member; the seventh fixing member is mounted on the sixth supporting member through the eighth fixing member; the third membrane connecting member is fixedly arranged on the seventh fixing member and fixedly connected to the PTFE membrane.

[0013] Preferably, the bottom waterproof component includes: a first fixed plate, a second fixed plate and a seventh waterproof component; wherein, the first fixed plate is fixed to the top of the sixth support member, the bottom of the second fixed plate is installed on the bottom of the sixth support member, and the top of the second fixed plate is connected to the first fixed plate; the seventh waterproof component is arranged between the first fixed plate and the second fixed plate, and is fixedly connected to the PTFE membrane; a sealing component is provided at the bottom of the second fixed plate, and the sealing component is connected to the building located below the steel structure support tube.

[0014] Compared with the closest prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses the first PTFE membrane fixing component, the second PTFE membrane fixing component, and the third PTFE membrane fixing component to fix the PTFE membrane at different positions of the steel structure roof, ensuring that each PTFE membrane can be attached to the steel structure roof, and further ensuring that each PTFE membrane can show the advantages and effects of the membrane material on the curvature, curve, and surface.

[0016] 2. The fourth PTFE membrane fixing assembly of the present invention ensures that the PTFE membranes at the connection position between the steel structure roof and the steel structure support tube can be attached to the connection position between the steel structure roof and the steel structure support tube, thereby ensuring that each PTFE membrane can show the advantages and effects of the membrane material on the arc, curve and surface.

[0017] 3. The present invention uses the fifth PTFE membrane fixing component and the sixth PTFE membrane fixing component to fix the PTFE membrane at different positions of the steel structure support tube, ensuring that each PTFE membrane can be attached to the steel structure support tube, and further ensuring that each PTFE membrane can show the advantages and effects of the membrane material on the arc, curve and surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the PTFE membrane fixing structure of the large-span irregular steel structure roof of the present invention.

[0019] Figure 2 It is a schematic diagram of the PTFE membrane fixing structure of the steel structure roof of the present invention.

[0020] Figure 3 This is a schematic diagram of the PTFE membrane fixing structure of the steel structure support cylinder of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the first PTFE membrane fixing component of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the second PTFE membrane fixing component of the present invention.

[0023] Figure 6 Schematic diagram of the structure of the third PTFE membrane fixing component of the present invention.

[0024] Figure 7 Schematic diagram of the structure of the third film drawing component of the present invention.

[0025] Figure 8 Schematic diagram of the structure of the fourth PTFE membrane fixing component of the present invention.

[0026] Figure 9 Schematic diagram of the structure of the fifth PTFE membrane fixing assembly of the present invention.

[0027] Figure 10 It is a structural schematic diagram of the first film-drawing component, the second film-drawing component, the fourth film-drawing component or the fifth film-drawing component of the present invention.

[0028] Figure 11 This is a schematic structural diagram of the sixth PTFE membrane fixing assembly of the present invention.

[0029] Figure 12 Schematic diagram of the structure of the sixth film-drawing component of the present invention.

[0030] Figure 13 It is a structural schematic diagram of the bottom waterproof component of the present invention.

[0031] Reference numerals:

[0032] 1-Steel structure roof, 2-Steel structure support tube, 3-PTFE membrane, 4-First PTFE membrane fixing assembly, 41-First support, 42-First membrane pulling member, 43-First waterproof member, 44-Second waterproof member, 45-First fixing member, 46-Second fixing member, 47-First membrane connecting member, 5-Second PTFE membrane fixing assembly, 51-Second support, 52-Second membrane pulling member, 53-Third waterproof member, 6-Third PTFE membrane fixing assembly, 61-Third support, 62-Third membrane pulling member, 63-Third fixing member, 64-Fourth fixing member, 65-Fifth fixing member, 66 -Sixth fixing member, 67-second membrane connecting member, 7-fourth PTFE membrane fixing assembly, 71-fourth supporting member, 72-fourth membrane pulling member, 73-fourth waterproof member, 74-fifth waterproof member, 8-fifth PTFE membrane fixing assembly, 81-fifth supporting member, 82-fifth membrane pulling member, 83-sixth waterproof member, 9-sixth PTFE membrane fixing assembly, 91-sixth supporting member, 92-sixth membrane pulling member, 93-bottom waterproof assembly, 94-seventh fixing member, 95-eighth fixing member, 96-third membrane connecting member, 97-first fixing plate, 98-second fixing plate, 99-seventh waterproof member. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] Example 1

[0035] like Figures 1-13As shown, the present invention provides a PTFE membrane fixing structure for a large-span irregular steel structure roof, the PTFE membrane fixing structure is fixed on the steel structure roof 1 or the steel structure support tube 2, and is fixedly connected to the PTFE membrane 3, wherein the PTFE membrane fixing structure includes: a first PTFE membrane fixing component 4, a second PTFE membrane fixing component 5, a third PTFE membrane fixing component 6, a fourth PTFE membrane fixing component 7, a fifth PTFE membrane fixing component 8 and a sixth PTFE membrane fixing component 9; wherein the first PTFE membrane fixing component 4, the second PTFE membrane fixing component 5, the third PTFE membrane fixing component 6 and the fourth PTFE membrane fixing component 7 are installed on the steel structure roof 1; the first PTFE membrane fixing component 4 is arranged at the edge position of the steel structure roof 1, and is used to fix the PTFE membrane 3 at the edge position of the steel structure roof 1 ; The second PTFE membrane fixing component 5 is arranged at the butt joint of adjacent PTFE membranes 3, for fixing adjacent PTFE membranes 3; the third PTFE membrane fixing component 6 is used to fix the central position of the PTFE membrane 3; the fourth PTFE membrane fixing component 7 is arranged at the connection position between the steel structure roof 1 and the steel structure support tube 2, for fixing the PTFE membrane 3 at the connection position between the steel structure roof 1 and the steel structure support tube 2; the fifth PTFE membrane fixing component 8 and the sixth PTFE membrane fixing component 9 are installed on the steel structure support tube 2; the fifth PTFE membrane fixing component 8 is arranged at the butt joint of adjacent PTFE membranes 3, for fixing adjacent PTFE membranes 3; the sixth PTFE membrane fixing component 9 is arranged at the bottom of the steel structure support tube 2, for fixing the PTFE membrane 3 at the bottom of the steel structure support tube 2, and is connected to the building located below the steel structure support tube 2. The first PTFE membrane fixing assembly, the second PTFE membrane fixing assembly, and the third PTFE membrane fixing assembly are used to fix the PTFE membrane at different positions of the steel structure roof, ensuring that each PTFE membrane can be attached to the steel structure roof, thereby ensuring that each PTFE membrane can show the advantages and effects of the membrane material in terms of curvature, curves, and curved surfaces. The fourth PTFE membrane fixing assembly ensures that the PTFE membrane at the connection position between the steel structure roof and the steel structure support tube can be attached to the connection position between the steel structure roof and the steel structure support tube, thereby ensuring that each PTFE membrane can show the advantages and effects of the membrane material in terms of curvature, curves, and curved surfaces. The fifth PTFE membrane fixing assembly and the sixth PTFE membrane fixing assembly are used to fix the PTFE membrane at different positions of the steel structure support tube, ensuring that each PTFE membrane can be attached to the steel structure support tube, thereby ensuring that each PTFE membrane can show the advantages and effects of the membrane material in terms of curvature, curves, and curved surfaces.

[0036] In a preferred embodiment, the first PTFE membrane fixing assembly 4 includes: a first support member 41, a first film-pulling member 42, a first waterproof member 43 and a second waterproof member 44; wherein, the first support member 41 is installed on the steel structure roof 1; the first film-pulling member 42 is installed on the first support member 41 and is fixedly connected to the PTFE membrane 3; the first waterproof member 43 is arranged on the outside of the first support member 41, and the bottom is installed on the steel structure roof 1, and the top is installed on the first film-pulling member 42; the second waterproof member 44 is installed on the first waterproof member 43.

[0037] In a preferred embodiment, the second PTFE membrane fixing assembly 5 includes: a second support member 51, a second film-pulling member 52 and a third waterproof member 53; wherein, the second support member 51 is installed on the steel structure roof 1; the number of the second film-pulling members 52 is two, and the two second film-pulling members 52 are both installed on the second support member 51, and the two second film-pulling members 52 are both fixedly connected to the PTFE membrane 3; the third waterproof member 53 is arranged above the two second film-pulling members 52.

[0038] In a preferred embodiment, the fourth PTFE membrane fixing assembly 7 includes: a fourth support member 71, a fourth film-pulling member 72, a fourth waterproof member 73 and a fifth waterproof member 74; wherein, the fourth support member 71 is installed on the steel structure roof 1; the number of fourth film-pulling members 72 is two, and the two fourth film-pulling members 72 are both installed on the fourth support member 71, one of the fourth film-pulling members 72 is fixedly connected to the PTFE membrane 3, and the other fourth film-pulling member 72 is connected to the fifth waterproof member 74, and the fifth waterproof member 74 is connected to the steel structure support tube 2; the fourth waterproof member 73 is arranged above the two fourth film-pulling members 72.

[0039] In a preferred embodiment, the fifth PTFE membrane fixing assembly 8 includes: a fifth support member 81, a fifth film-pulling member 82 and a sixth waterproof member 83; wherein, the fifth support member 81 is installed on the steel structure support tube 2; the number of the fifth film-pulling members 82 is two, and the two fifth film-pulling members 82 are both installed on the fifth support member 81, and the two fifth film-pulling members 82 are both fixedly connected to the PTFE membrane 3; the sixth waterproof member 83 is arranged above the two fifth film-pulling members 82.

[0040] In a preferred embodiment, the first film-pulling member 42, the second film-pulling member 52, the fourth film-pulling member 72 and the fifth film-pulling member 82 have the same structure and all include: a first fixing member 45, a second fixing member 46 and a first membrane connecting member 47; wherein, the first fixing member 45 is installed on the first support member 41, the second support member 51, the fourth support member 71 or the fifth support member 81 through the second fixing member 46; the first membrane connecting member 47 is fixedly arranged on the first fixing member 45 and is fixedly connected to the PTFE membrane 3.

[0041] In a preferred embodiment, the third PTFE membrane fixing assembly 6 includes: a third support member 61 and a third film-pulling member 62; wherein, the third support member 61 is installed on the steel structure roof 1; the third film-pulling member 62 is installed on the third support member 61, and the third film-pulling member 62 is fixedly connected to the PTFE membrane 3; the third film-pulling member 62 includes: a third fixing member 63, a fourth fixing member 64, a fifth fixing member 65, a sixth fixing member 66 and a second membrane connecting member 67; wherein, the third fixing member 63 is fixed on the third support member 61; the fourth fixing member 64 is fixed on the third fixing member 63; the sixth fixing member 66 is fixed on the fourth fixing member 64 through the fifth fixing member 65; the second membrane connecting member 67 is fixedly arranged on the sixth fixing member 66, and the second membrane connecting member 67 is fixedly connected to the PTFE membrane 3.

[0042] In a preferred embodiment, the sixth PTFE membrane fixing assembly 9 includes: a sixth support member 91, a sixth film-pulling member 92 and a bottom waterproof assembly 93; wherein, the sixth support member 91 is installed on the steel structure support tube 2; the sixth film-pulling member 92 is installed on the sixth support member 91 and is fixedly connected to the PTFE membrane 3; the bottom waterproof assembly 93 is arranged on the outside of the sixth film-pulling member 92, the bottom is installed on the bottom of the sixth support member 91, and is connected to the building located below the steel structure support tube 2, and the top is installed on the top of the sixth support member 91 and is fixedly connected to the PTFE membrane 3.

[0043] In a preferred embodiment, the sixth film-pulling member 92 includes: a seventh fixing member 94, an eighth fixing member 95 and a third membrane connecting member 96; the seventh fixing member 94 is installed on the sixth support member 91 through the eighth fixing member 95; the third membrane connecting member 96 is fixedly arranged on the seventh fixing member 94 and is fixedly connected to the PTFE membrane 3.

[0044] In a preferred embodiment, the bottom waterproof component 93 includes: a first fixing plate 97, a second fixing plate 98 and a seventh waterproof component 99; wherein, the first fixing plate 97 is fixed to the top of the sixth support member 91, the bottom of the second fixing plate 98 is installed on the bottom of the sixth support member 91, and the top of the second fixing plate 98 is connected to the first fixing plate 97; the seventh waterproof component 99 is arranged between the first fixing plate 97 and the second fixing plate 98, and is fixedly connected to the PTFE membrane 3; a sealing component is provided at the bottom of the second fixing plate 98, and the sealing component is connected to the building located below the steel structure support tube 2.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] Furthermore, the terms "above" and "below" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "above" or "below" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0047] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0048] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the pending claims.

Claims

1. A PTFE membrane fixing structure for a large-span irregular steel structure roof, characterized in that: The PTFE membrane fixing structure is fixed on the steel structure roof (1) or the steel structure support cylinder (2) and is fixedly connected to the PTFE membrane (3), wherein the PTFE membrane fixing structure comprises: a first PTFE membrane fixing component (4), a second PTFE membrane fixing component (5), a third PTFE membrane fixing component (6), a fourth PTFE membrane fixing component (7), a fifth PTFE membrane fixing component (8) and a sixth PTFE membrane fixing component (9); Wherein, the first PTFE membrane fixing assembly (4), the second PTFE membrane fixing assembly (5), the third PTFE membrane fixing assembly (6) and the fourth PTFE membrane fixing assembly (7) are installed on the steel structure roof (1); The first PTFE membrane fixing assembly (4) is arranged at an edge position of the steel structure roof (1) and is used to fix the PTFE membrane (3) at the edge position of the steel structure roof (1); The second PTFE membrane fixing assembly (5) is arranged at the butt joint of the adjacent PTFE membranes (3) and is used to fix the adjacent PTFE membranes (3); The third PTFE membrane fixing component (6) is used to fix the central position of the PTFE membrane (3); The fourth PTFE membrane fixing assembly (7) is arranged at the connection position between the steel structure roof (1) and the steel structure support cylinder (2), and is used to fix the PTFE membrane (3) at the connection position between the steel structure roof (1) and the steel structure support cylinder (2); The fifth PTFE membrane fixing assembly (8) and the sixth PTFE membrane fixing assembly (9) are installed on the steel structure support cylinder (2); The fifth PTFE membrane fixing component (8) is arranged at the butt joint of adjacent PTFE membranes (3) and is used to fix the adjacent PTFE membranes (3); The sixth PTFE membrane fixing assembly (9) is arranged at the bottom of the steel structure support cylinder (2), is used to fix the PTFE membrane (3) at the bottom of the steel structure support cylinder (2), and is connected to the building located below the steel structure support cylinder (2).

2. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 1, characterized in that: The first PTFE membrane fixing assembly (4) comprises: a first supporting member (41), a first membrane pulling member (42), a first waterproof member (43) and a second waterproof member (44); Wherein, the first support member (41) is installed on the steel structure roof (1); The first film-drawing member (42) is mounted on the first support member (41) and is fixedly connected to the PTFE film (3); The first waterproof member (43) is arranged on the outside of the first supporting member (41), and the bottom is installed on the steel structure roof (1), and the top is installed on the first film-drawing member (42); The second waterproof member (44) is installed on the first waterproof member (43).

3. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 2, characterized in that: The second PTFE membrane fixing assembly (5) comprises: a second supporting member (51), a second membrane pulling member (52) and a third waterproof member (53); Wherein, the second support member (51) is installed on the steel structure roof (1); There are two second film-drawing members (52), both of which are mounted on the second support member (51), and both of which are fixedly connected to the PTFE membrane (3); The third waterproof member (53) is arranged above the two second film-drawing members (52).

4. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 3, characterized in that: The fourth PTFE membrane fixing assembly (7) comprises: a fourth supporting member (71), a fourth membrane pulling member (72), a fourth waterproof member (73) and a fifth waterproof member (74); Wherein, the fourth support member (71) is installed on the steel structure roof (1); There are two fourth film-pulling members (72), both of which are mounted on the fourth support member (71), one of which is fixedly connected to the PTFE membrane (3), and the other of which is connected to the fifth waterproof member (74), and the fifth waterproof member (74) is connected to the steel structure support tube (2); The fourth waterproof member (73) is arranged above the two fourth film-drawing members (72).

5. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 4, characterized in that: The fifth PTFE membrane fixing assembly (8) comprises: a fifth supporting member (81), a fifth membrane pulling member (82) and a sixth waterproof member (83); Wherein, the fifth support member (81) is installed on the steel structure support cylinder (2); There are two fifth film-drawing members (82), both of which are mounted on the fifth support member (81), and both of which are fixedly connected to the PTFE membrane (3); The sixth waterproof member (83) is arranged above the two fifth film-drawing members (82).

6. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 5, characterized in that: The first film-pulling member (42), the second film-pulling member (52), the fourth film-pulling member (72) and the fifth film-pulling member (82) have the same structure and all include: a first fixing member (45), a second fixing member (46) and a first film connecting member (47); wherein the first fixing member (45) is mounted on the first supporting member (41), the second supporting member (51), the fourth supporting member (71) or the fifth supporting member (81) via the second fixing member (46); The first membrane connecting member (47) is fixedly arranged on the first fixing member (45) and is fixedly connected to the PTFE membrane (3).

7. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 1, characterized in that: The third PTFE film fixing assembly (6) comprises: a third support member (61) and a third film pulling member (62); Wherein, the third support member (61) is installed on the steel structure roof (1); The third film-drawing member (62) is installed on the third support member (61), and the third film-drawing member (62) is fixedly connected to the PTFE film (3); The third film-drawing member (62) comprises: a third fixing member (63), a fourth fixing member (64), a fifth fixing member (65), a sixth fixing member (66) and a second film connecting member (67); Wherein, the third fixing member (63) is fixed on the third supporting member (61); The fourth fixing member (64) is fixed on the third fixing member (63); The sixth fixing member (66) is fixed to the fourth fixing member (64) via the fifth fixing member (65); The second membrane connecting member (67) is fixedly arranged on the sixth fixing member (66), and the second membrane connecting member (67) is fixedly connected to the PTFE membrane (3).

8. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 1, characterized in that: The sixth PTFE membrane fixing assembly (9) comprises: a sixth supporting member (91), a sixth membrane pulling member (92) and a bottom waterproof assembly (93); Wherein, the sixth support member (91) is installed on the steel structure support cylinder (2); The sixth film-drawing member (92) is mounted on the sixth support member (91) and is fixedly connected to the PTFE film (3); The bottom waterproof component (93) is arranged on the outside of the sixth film-drawing member (92), the bottom is installed on the bottom of the sixth support member (91), and is connected to the building located below the steel structure support tube (2), and the top is installed on the top of the sixth support member (91) and is fixedly connected to the PTFE membrane (3).

9. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 8, characterized in that: The sixth film-drawing member (92) includes: a seventh fixing member (94), an eighth fixing member (95) and a third film connecting member (96); The seventh fixing member (94) is mounted on the sixth supporting member (91) via the eighth fixing member (95); The third membrane connecting member (96) is fixedly arranged on the seventh fixing member (94) and is fixedly connected to the PTFE membrane (3).

10. The PTFE membrane fixing structure for a large-span irregular steel structure roof according to claim 8, characterized in that: The bottom waterproof component (93) includes: a first fixing plate (97), a second fixing plate (98) and a seventh waterproof component (99); Wherein, the first fixing plate (97) is fixed to the top of the sixth support member (91), the bottom of the second fixing plate (98) is installed on the bottom of the sixth support member (91), and the top of the second fixing plate (98) is connected to the first fixing plate (97); The seventh waterproof member (99) is arranged between the first fixing plate (97) and the second fixing plate (98), and is fixedly connected to the PTFE membrane (3); A sealing assembly is provided at the bottom of the second fixing plate (98), and the sealing assembly is connected to a building located below the steel structure support cylinder (2).

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