Irregular shaped air film reinforced concrete structure and construction method thereof

Abstract

The present invention provides an irregular shaped air-film reinforced concrete structure and a construction method thereof, and relates to the field of building construction technology, in order to solve the technical problems existing in the prior art that the shaped air-film body is difficult to be locally shaped, especially at the end of the shaped outer shell wall or the intersection of the inner and outer shell walls, such as the crescent shape, the outer shell wall's positive and negative corners cannot be sharp; and the space is narrow and long, the concrete structure is difficult to construct; and the overall effect of the appearance molding is difficult to ensure. The structure includes a shell and a supporting structure connected to the shell, wherein: the supporting structure is arranged along the part of the building that is difficult to be shaped, the supporting structure includes at least two supporting components, the supporting components are connected by a connecting component, and the supporting components are fixedly provided with an air-film structure. The present invention is used to ensure the construction quality and appearance effect by optimizing the structural design method while satisfying the design shape and size and the function remains unchanged, so as to achieve the purpose of accelerating the construction progress.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an irregular special-shaped air-film reinforced concrete structure and a construction method thereof. Background Art

[0002] Currently, the most common air-film reinforced concrete structures are mostly spherical or semi-ellipsoidal in shape. They are relatively regular in shape, and the main body consists of a cylindrical thin shell and a dome thin shell or a cylinder and a dome. They are widely used in coal, electricity, grain, and coal chemical storage projects.

[0003] Prior art, such as Chinese patent document with publication number CN103669953A, discloses a construction method using a space air membrane as a template. The air membrane template is processed and formed in a factory according to the engineering design. After the processing, the air membrane template is transported to the construction site, unfolded and fixed on the foundation. After the air membrane is inflated, the air pressure in the warehouse is kept stable, polyurethane foam is sprayed on the inner surface of the air membrane template to form a polyurethane layer, and then steel bars are tied, and then concrete is sprayed. When the concrete reaches the designed strength, the inflation fan is turned off.

[0004] With the popularization of technology, designers often design irregular shaped air-membrane reinforced concrete structures when designing civil or public buildings in order to combine with the surrounding scenery and create a visual landscape project that highly combines nature and humanity.

[0005] For special-shaped, such as spiral air-film reinforced concrete structure construction, if the air-film reinforced concrete structure construction process disclosed in the above patent document is generally to directly inflate the entire spherical shell air-filled membrane, such construction is prone to the following problems:

[0006] 1. The entire irregular inflatable membrane is not easy to shape locally, especially the end of the irregular outer shell wall or the intersection of the inner and outer shell walls, such as the crescent shape, and the yin and yang corners of the outer shell wall cannot be clear-cut;

[0007] 2. In narrow and long areas, the construction of concrete structures is difficult and the overall effect of the appearance molding is not easy to guarantee.

[0008] Therefore, how to optimize the structural design practices while ensuring the construction quality and appearance and speeding up the construction progress while satisfying the design shape, size and function is an urgent problem to be solved during construction. Summary of the invention

[0009] The purpose of the present invention is to provide an irregular shaped air membrane reinforced concrete structure and a construction method thereof, so as to solve the technical problems existing in the prior art that the shaped air membrane is difficult to shape locally, especially at the end of the shaped outer shell wall or the intersection of the inner and outer shell walls, such as the crescent shape, the outer shell wall corners cannot be sharp; and the narrow and long space makes it difficult to construct the concrete structure; the overall effect of the appearance molding is difficult to ensure. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present invention are described in detail below.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] The present invention provides an irregular shaped air-film reinforced concrete structure, comprising a shell and a supporting structure connected to the shell, wherein:

[0012] The support structure is arranged at a position of the inflatable membrane structure that is not easy to be shaped, and the support structure comprises at least two support components, and the support components are connected by a connecting component.

[0013] Preferably, the support assembly comprises an arc-shaped first support assembly and an arc-shaped second support assembly, wherein the second support assembly is located inside the housing, wherein:

[0014] The inflatable membrane structure includes a first inflatable membrane structure arranged outside and a second inflatable membrane structure located inside the first inflatable membrane structure, the two ends of the first inflatable membrane structure are respectively fixedly arranged on the first supporting assembly and the second supporting assembly, and the two ends of the second inflatable membrane structure are respectively fixedly arranged on the first supporting assembly and the second supporting assembly.

[0015] Preferably, the first support assembly comprises a first support member and a second support member disposed perpendicularly to each other, and the second support assembly comprises a third support member and a fourth support member disposed perpendicularly to each other, wherein:

[0016] The first support member is provided with a first fixing structure for fixing one end of the first inflatable membrane structure, and the second support member is provided with a second fixing structure for fixing one end of the second inflatable membrane structure;

[0017] The third supporting member is provided with a third fixing structure and a fourth fixing structure, which are used to fix the second inflatable membrane structure and the other end of the first inflatable membrane structure respectively.

[0018] Preferably, the first fixing structure is configured to include a first fixing member and a first fastener, wherein the first fixing member is used to fix one end of the first inflatable membrane structure, and the first fastener is used to fix the first fixing member and the first inflatable membrane structure to the first supporting member;

[0019] The second fixing structure is configured to include a second fixing member and a second fastening member, wherein the second fixing member is used to fix one end of the second inflatable membrane structure, and the second fastening member is used to fix the second fixing member and the second inflatable membrane structure to the second supporting member.

[0020] Preferably, it further comprises a first pressing member and a second pressing member, wherein:

[0021] The first fixing member and the second fixing member are both configured to include a groove structure, and the first pressing member and the second pressing member are respectively disposed in the groove structure of the first fixing member and the groove structure of the second fixing member, and are respectively used to press the first inflatable membrane structure and the second inflatable membrane structure.

[0022] Preferably, the third fixing structure comprises a first pressing plate and a third fastener, wherein the first pressing plate is used to press and fix the other end of the second inflatable membrane structure, and the third fastener is used to fix the first pressing plate and the second inflatable membrane structure to the third supporting member;

[0023] The fourth fixing structure includes a second pressing plate and a fourth fastener, the length of the first pressing plate is smaller than the length of the second pressing plate, wherein the second pressing plate is used to press and fix the other end of the first inflatable membrane structure, and the fourth fastener is used to fix the second pressing plate and the first inflatable membrane structure to the third support member.

[0024] Preferably, the first support assembly further comprises a first reinforcement structure, and the second support assembly further comprises a second reinforcement structure, wherein:

[0025] One end of the first reinforcement structure is connected to the first support member, and the other end of the first reinforcement structure is connected to the second support member;

[0026] One end of the second reinforcement structure is connected to the third support member, and the other end of the second reinforcement structure is connected to the fourth support member.

[0027] Preferably, the first fastener, the second fastener, the third fastener and the fourth fastener all include a screw rod and a nut matched with the screw rod.

[0028] A construction method for an irregular shaped air membrane reinforced concrete structure comprises the following steps:

[0029] S1: Wall foundation and ground construction; processing of inflatable membrane structure and supporting structure;

[0030] S2: Support structure installation;

[0031] S3: Construction of the outer shell structure, the construction path of the outer shell structure is: along the bottom starting point of the outermost support assembly to the end point of the outer shell structure located away from the support assembly;

[0032] S4: After the main structure of the outer shell is formed, the internal structure is constructed, and the construction path of the internal structure is: along the point on the support structure that is tangent to the outer shell structure to the intersection of the outer shell structure and the inner support assembly;

[0033] S5: Door opening and decoration construction.

[0034] Preferably, in step S1, the inflatable membrane structure is processed, including evenly arranging fixed structures in a circular circumference with a diameter of 2m at the top of the inflatable membrane structure, and when the support structure is processed, the arc-shaped first support component and the arc-shaped second support component are both formed by multi-stage welding;

[0035] In step S3, the shell structure construction includes: S31: installation of the shell inflation membrane; S32: construction of the shell inflation; S33: spraying of polyurethane on the inner side of the shell; S34: construction of the concrete structure on the inner side of the shell;

[0036] In step S4, the internal structure construction includes: S41: installation of the internal inflatable membrane; S42, inflation construction of the inner shell; S43: polyurethane spraying on the inner side of the inner shell; S44: construction of the concrete structure layer on the inner side of the inner shell.

[0037] The present invention provides an irregular and special-shaped air-membrane reinforced concrete structure and a construction method thereof, comprising a shell and a supporting structure connected to the shell, wherein the supporting structure is arranged at a position of the inflatable membrane structure that is difficult to shape, and by adding a supporting structure consistent with the structural design shape in the wall where the inflatable membrane structure that is difficult to shape is located, a plurality of supporting components are connected by connecting components, and can be assembled into any irregular and special-shaped supporting structure, and the inflatable membrane structure and the supporting structure, the rope at the root of the inflatable membrane and the embedded parts of the ring wall (foundation) are all anchored before the inflatable membrane structure is inflated. This solves the problem that the special-shaped inflatable membrane body is difficult to shape locally in the prior art, especially at the end of the special-shaped outer shell wall or the intersection of the inner and outer shell walls, such as the crescent shape, the positive and negative corners of the outer shell wall cannot be clear-cut; and the technical problems that the concrete structure is difficult to construct in a narrow and long space; and the overall effect of the appearance molding is difficult to ensure, while meeting the design shape and size and the function remains unchanged, by optimizing the structural design method, the construction quality and appearance effect are guaranteed, and the construction progress is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a plan view of the irregular shaped air membrane reinforced concrete structure of the present invention;

[0040] Figure 2 This is a structural elevation diagram of an irregular shaped air membrane reinforced concrete structure of the present invention;

[0041] Figure 3 It is a structural schematic diagram of the support structure in the irregular shaped air membrane reinforced concrete structure of the present invention;

[0042] Figure 4 yes Figure 3 A cross-sectional view of the first support assembly;

[0043] Figure 5 yes Figure 3 A cross-sectional view of the second support assembly;

[0044] Figure 6 It is a construction flow chart of the irregular shaped air film reinforced concrete structure of the present invention;

[0045] Figure 7 It is a schematic diagram of the structure inside the inflatable membrane.

[0046] In the figure: 1. first supporting assembly; 2. second supporting assembly; 3. connecting assembly; 7. root rope of inflatable membrane structure; 11. first supporting member; 12. second supporting member; 13. first reinforcing structure; 21. third supporting member; 22. fourth supporting member; 23. second reinforcing structure; 31. first inflatable membrane structure; 32. second inflatable membrane structure; 33. third inflatable membrane structure; 51. fixing structure; 52. ring; 53. traction rope; 111. first fixing member; 112. first fastening member; 113. first pressing member; 121. second fixing member; 122. second fastening member; 123. second pressing member; 211. first pressing plate; 212. third fastening member; 221. second pressing plate; 222. fourth fastening member. DETAILED DESCRIPTION

[0047] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0048] The present invention provides an irregular shaped air membrane reinforced concrete structure, comprising a shell and a supporting structure connected to the shell, wherein the supporting structure is arranged at a position of the air membrane structure that is not easy to be shaped, and the supporting structure comprises at least two supporting components, and the supporting components are connected by connecting components 3, wherein: the supporting components and the connecting components are preferably steel structures.

[0049] The supporting structure is set to be consistent with the shape of the structural design, and is formed by connecting at least two supporting components with multiple connecting components 3. By adding a supporting structure consistent with the shape of the structural design in the wall where the inflatable membrane structure that is not easy to shape is located, the deformation of the inflatable membrane when it is inflated is limited. Multiple supporting components are connected by connecting components 3, and can be assembled into any irregular and special-shaped supporting structure to meet the construction requirements. During the construction process, the inflatable membrane structure and the supporting structure, the rope at the root of the inflatable membrane and the embedded parts of the ring wall (foundation) are all anchored before the inflatable membrane structure is inflated. The technical problems that the special-shaped inflatable membrane body is difficult to shape locally in the prior art, especially the end of the special-shaped outer shell wall or the intersection of the inner and outer shell walls, such as the crescent shape, the yin and yang corners of the outer shell wall cannot be sharp; and the narrow and long space, the concrete structure is difficult to construct; the overall effect of the appearance molding is not easy to guarantee.

[0050] This embodiment takes the spiral air membrane reinforced concrete structure as an example. Figure 1 is a schematic diagram of the structure of this embodiment, Figure 2 It is a elevation view of this embodiment, such as Figure 1 and Figure 2 As shown in the figure, a horn-shaped steel door support, i.e. a support structure, is added to the outer shell wall of the narrow crescent area. During the construction process, the support structure will be removed after the concrete structure reaches a certain strength. Thus, while meeting the design shape, size and function unchanged, the construction quality and appearance effect are guaranteed by optimizing the structural design method, and the construction progress is accelerated.

[0051] As an optional implementation, Figure 3 Schematic diagram of the support structure in this embodiment. Figure 3 As shown, the support assembly includes an arc-shaped first support assembly 1 and an arc-shaped second support assembly 2, and the second support assembly 2 is located inside the housing, wherein:

[0052] The inflatable membrane structure includes a first inflatable membrane structure 31 arranged outside and a second inflatable membrane structure 32 located inside the first inflatable membrane structure 31. The two ends of the first inflatable membrane structure 31 are respectively fixed on the first support assembly 1 and the second support assembly 2, and the two ends of the second inflatable membrane structure 32 are respectively fixed on the first support assembly 1 and the second support assembly 2.

[0053] In this embodiment, the connection component 3 is made of steel plate, specifically, a galvanized steel plate with a thickness of 1-2 mm and a width of 50-80 mm, and both ends are welded to the support components respectively to connect the two support components.

[0054] As an optional implementation, Figure 4 yes Figure 3 A cross-sectional view of the first support assembly in FIG. Figure 5 yes Figure 3 A cross-sectional view of the second support assembly in FIG. Figure 4 and Figure 5 As shown, the first support assembly 1 includes a first support member 11 and a second support member 12 which are vertically arranged, and the second support assembly 2 includes a third support member 21 and a fourth support member 22 which are vertically arranged. In this embodiment, the first support member 11, the second support member 12, the third support member 21 and the fourth support member 22 are all made of Q235 steel plates with a thickness of 5-10mm and a width of 100mm, and the length is set according to actual usage requirements.

[0055] Specifically, in actual construction, the steel plate is cut into small sections and then welded into the required special-shaped structure, which can save materials and improve forming accuracy. Especially for special-shaped structures with high shape requirements, the small sections are welded and formed to make them more beautiful and improve the visual quality.

[0056] It should be noted that during production and processing, the edges of the first support member 11, the second support member 12, the third support member 21 and the fourth support member 22 should be polished to remove burrs and flash, and the rust should be removed and the anti-corrosion paint should be applied.

[0057] Among them, a first fixing structure is provided on the first support member 11, which is used to fix one end of the first inflatable membrane structure 31, and a second fixing structure is provided on the second support member 12, which is used to fix one end of the second inflatable membrane structure 32; a third fixing structure and a fourth fixing structure are provided on the third support member 21, which are used to fix the other ends of the first inflatable membrane structure 31 and the second inflatable membrane structure 32 respectively. The air membrane is fixed by the fixing structure to improve the safety of construction.

[0058] As an optional embodiment, specifically, the first fixing structure is configured to include a first fixing member 111 and a first fastener 112, wherein the first fixing member 111 is used to fix one end of the first inflatable membrane structure 31, and the first fastener 112 is used to fix the first fixing member 111 and the first inflatable membrane structure 31 to the first support member 11.

[0059] The second fixing structure is configured to include a second fixing member 121 and a second fastening member 122 , wherein the second fixing member 121 is used to fix one end of the second inflatable membrane structure 32 , and the second fastening member 122 is used to fix the second fixing member 121 and the second inflatable membrane structure 32 to the second support member 12 .

[0060] As an optional embodiment, it further includes a first pressing member 113 and a second pressing member 123, wherein:

[0061] The first fixing member 111 and the second fixing member 121 are both configured to include a slot structure, wherein the slot structure can be configured to be a rectangular slot structure or a “C”-shaped slot structure, or can be configured to be other slot shapes according to actual needs.

[0062] The first pressing member 113 and the second pressing member 123 are respectively arranged in the groove structure of the first fixing member 111 and the groove structure of the second fixing member 121, and are respectively used to press the first inflatable membrane structure 31 and the second inflatable membrane structure 32. Specifically, the first pressing member 113 and the second pressing member 123 are both made of galvanized round steel, which can play a good pressing role while avoiding corrosion and having good stability.

[0063] In this embodiment, the root rope 7 of the inflatable membrane structure is located on one side of the fixed structure to ensure stable connection of the inflatable membrane structure. However, in actual use, if it is close to a wall, the root rope 7 of the inflatable membrane structure can be accommodated in the fixed groove to avoid collision.

[0064] As an optional embodiment, the third fixing structure includes a first pressing plate 211 and a third fastener 212, wherein the first pressing plate 211 is used to press and fix the other end of the second inflatable membrane structure 32, and the third fastener 212 is used to fix the first pressing plate 211 and the second inflatable membrane structure 32 on the third support member 21;

[0065] The fourth fixing structure includes a second pressing plate 221 and a fourth fastener 222, wherein the length of the first pressing plate 211 is smaller than the length of the second pressing plate 221, wherein the second pressing plate 221 is used to press and fix the other end of the first inflatable membrane structure 31, and the fourth fastener 222 is used to fix the second pressing plate 221 and the first inflatable membrane structure 31 to the third support member 21.

[0066] As an optional embodiment, the first support assembly 1 further includes a first reinforcement structure 13, and the second support assembly 2 further includes a second reinforcement structure 23. One end of the first reinforcement structure 13 is connected to the first support member 11, and the other end of the first reinforcement structure 13 is connected to the second support member 12; one end of the second reinforcement structure 23 is connected to the third support member 21, and the other end of the second reinforcement structure 23 is connected to the fourth support member 22.

[0067] By providing the first reinforcement structure 13 and the second reinforcement structure 23, the first support member 11, the second support member 12 and the first reinforcement structure 13 of the first support assembly 1 form a triangular structure, and the third support member 21, the fourth support member 22 and the second reinforcement structure 23 of the second support assembly 2 form a triangular structure, thereby further improving the stability of the first support assembly 1 and the second support assembly 2.

[0068] As an optional implementation, the first fastener 112, the second fastener 122, the third fastener 212 and the fourth fastener 222 all include a screw and a nut that cooperates with the screw. When in use, holes are directly opened on the support member and the fixed structure so that the hole structure can be used for the screw to pass through and fixed by the nut. The construction is simple and easy to use. The use of screws and nuts is the preferred structure of the fasteners.

[0069] In this embodiment, according to actual use requirements, a screw with a diameter of 12 mm is used. Therefore, when making the outer support structure, i.e., the first support assembly 1, two steel plates, i.e., the first support member 11 and the second support member 12, are used, which are placed vertically and welded into a right angle shape, and holes are drilled at intervals of 200 mm along the center line for installing screws and nuts for fixing the inflatable membrane structure.

[0070] When manufacturing the inner support structure, i.e., the second support assembly 2, two steel plates, i.e., the third support member 21 and the fourth support member 22, are used, which are placed vertically and welded to form a right angle shape. Double rows of holes are drilled along the third support member 21 at intervals of 200 mm to fix the inflatable membrane structure, and the bottom of the fourth support member 22 is connected and fixed to the ground embedded member. In this embodiment, a third inflatable membrane structure 33 is also provided, which is used to be connected and fixed to the foundation beam or the embedded member on the ground by bolts to improve the stability of use.

[0071] A construction method for an irregular shaped air film reinforced concrete structure. Figure 6 It is the construction flow chart of this embodiment, such as Figure 6 As shown, the specific steps include:

[0072] S1: Wall foundation and ground construction; processing of inflatable membrane structure and supporting structure.

[0073] The wall foundation and ground construction shall be carried out according to the requirements of the design drawings. The wall foundation position line of the project shall be popped up on the existing site ground, the wall foundation shall be cast along the line at a fixed position, and embedded parts shall be installed. The ground surface layer shall be flat.

[0074] The inflatable membrane structure processing includes evenly arranging the fixing structure 51 in the circular circumference of the top diameter 2m of the inflatable membrane structure. Specifically, Figure 7 It is a schematic diagram of the structure inside the inflatable membrane, such as Figure 7 As shown, in this embodiment, when the inflatable membrane structure is processed, 12 fixed noses are evenly arranged around the sealing circle with a diameter of 2m at the top of the air membrane. A steel ring 52 with a diameter of 16mm is passed through the fixed nose, and the fixed nose is fixed by a traction rope 53, wherein the traction rope 53 is a steel wire rope. By setting the fixed nose, the ring 52 and the traction rope 53, the problem of displacement of the center of the circle when the inflatable membrane is inflated can be adjusted.

[0075] When the support structure is processed, the arc-shaped first support component 1 and the arc-shaped second support component 2 are both formed by multi-section welding. Specifically, the first support member 11 and the second support member 12 are both composed of bent right-angle steel plate rods and square steel, and each right-angle steel plate rod is formed by welding two 100-width steel plates perpendicular to each other to form a right angle, and each 100-width steel plate is divided into n sections for processing and butt welding.

[0076] S2: Support structure installation.

[0077] The first support member 11 and the second support member 12 of the first support assembly 1 are drilled with holes of 12 mm in diameter, and one hole is drilled every 200 mm from the root along the center line; the third support member of the second support assembly 2 is drilled with holes of 12 mm in diameter, and a group of holes is drilled every 200 mm from the root along the center line, and each group includes two holes. The arc-shaped first support assembly 1 and the arc-shaped second support assembly 2 are welded and fixed with steel square pipes, and their spacing positions meet the design requirements. The burrs and burrs on the edges and corners of the support members should be polished clean, and anti-rust paint and anti-corrosion paint should be applied. During installation, this support structure is hoisted into place, the second support assembly 2 is installed first, and then the first support assembly 1 is installed, and the root is connected with the embedded parts of the wall foundation with bolts.

[0078] S3: Construction of the outer shell structure. The construction path of the outer shell structure is: along the bottom starting point of the outermost support assembly to the end point on the outer shell structure that is located away from the support assembly.

[0079] The shell structure construction includes: S31: installation of the shell inflatable membrane; S32: shell inflation construction; S33: polyurethane spraying on the inner side of the shell; S34: concrete structure construction on the inner side of the shell;

[0080] S4: After the main structure of the outer shell is formed, the internal structure is constructed. The construction path of the internal structure is: along the point on the support structure that is tangent to the outer shell structure to the intersection of the outer shell structure and the inner support assembly.

[0081] The internal structure construction includes: S41: installation of internal inflatable membrane; S42, inflation construction of inner shell; S43: polyurethane spraying on the inner side of inner shell; S44: construction of concrete structure layer on the inner side of inner shell.

[0082] Specifically, in this embodiment, the overall structure is constructed using a two-step method. Figure 1 As shown, the outer shell is constructed first, and the path is abcd. After the outer shell structure is formed and reaches a certain strength, the inner half shell in the outer shell is constructed, and the path is bed.

[0083] During construction, the inflatable membrane positioning marking and shape measurement must be done.

[0084] Membrane root identification: Before the inflatable membrane is unfolded, the bottom of the membrane is numbered counterclockwise from the first membrane weld on the right side of the air lock, and marked as 0.1.2... Measure the actual circumference of the annular base and calculate the corresponding base length of the grouped membrane: the base length of the grouped membrane = (actual circumference of the annular base ÷ total number of membranes) × number of membrane groupings (number of membrane groupings, generally 5-6).

[0085] Mark the weld position "0" on the annular base, and mark the corresponding diaphragm positions on the base in order according to the interval "grouped diaphragm base length" from point 0. When fixing the membrane material, the marking point of the annular base must correspond to the marking point of the membrane material before the fixed air membrane can be installed.

[0086] Air film shape measurement: Before the inflatable film is unfolded, the center point of the shell and the mutually perpendicular axes are popped out on the ground to divide the shell structure into four quadrants. After the air pressure rises to the working pressure, the total station is set up at the center or control point of the plane projection, and other measuring instruments such as steel ruler and laser ruler are used to measure the size of the air film. Measure upward from the base position and record the coordinate data of the corresponding membrane material on each axis. The cylinder is laid out at 0.5m, the middle, and the intersection of the cylindrical surface and the dome; the dome is laid out at the positions of 15°, 30°, 45°, and 90° at the angle between the radius and the horizontal line. After the data is formed, the observed value and the theoretical value are compared and analyzed.

[0087] S31: Installation of the inflatable membrane of the shell. Before installing the inflatable membrane of the shell, first hoist the supporting structure in the shell wall of the crescent-shaped narrow area into place, first install the second supporting assembly 2, then install the first supporting assembly 1, and connect the root with the embedded parts of the wall foundation with bolts. When reinforcing, the upper part of the steel pipe is supported on the cross brace, and the lower part is fixed on the ground to ensure that the supporting structure is installed firmly and stably. The bottom of the supporting part is tightened and fixed with the embedded parts on the wall foundation with screws, washers, and nuts.

[0088] When installing the inflatable membrane, a rope needs to be tied to the top of the door support, and the worker pulls the auxiliary inflatable membrane to install it. The installation path of the shell inflatable membrane is abcd, and the process is as follows: first fix the vertical membrane rope on the support structure, that is, fix the first inflatable membrane structure 31, and then fix the horizontal or circumferential rope at the root of the shell membrane.

[0089] It should be noted that:

[0090] When fixing the membrane material in the directions of ad, two groups of personnel should be arranged to pull and tighten it in their respective directions at the same time. When pulling the inflatable membrane material from point a to point d, it should be fixed on the fourth fixed structure on the third support member 21. When pulling the inflatable membrane material from point d to point a, it should be fixed on the second fixed structure on the first support member 11.

[0091] When the inflatable membrane material is pulled from the path cd section to the point d, it should be fixed on the fourth fixing structure on the third support member 21. When the inflatable membrane material is pulled from the path ba section to the point a, it should be fixed on the second fixing structure on the second support member 12. The screws, washers and nuts should be installed starting from the root of the support member and installed one by one upward according to the hole pitch for temporary fixation.

[0092] When installing the outer shell inflatable membrane, you should also drill holes with a diameter of 12mm on the vertical membrane surface in advance, fix the horizontal or circumferential ropes at the root of the outer shell membrane material, and construct according to the public process.

[0093] S32: Inflate the outer shell; before inflation, install an expansion hook on the foundation ground to fix the wire rope. During the inflation process, always pay attention to whether the air film has a large deformation. If so, reduce the air pressure and use the wire rope to pull in the opposite direction of the deformation, then increase the pressure to the construction pressure, and use the steel pipe to support and adjust the verticality of the door frame.

[0094] S33: spraying polyurethane on the inner side of the shell, and spraying the polyurethane layer after the inflation membrane is formed. In this embodiment, three layers are sprayed, and the first and second layers are each sprayed with a thickness of 10 mm. After the second layer is sprayed, a steel bar label is buried on the polyurethane layer, and then a third layer of polyurethane with a thickness of 20 mm is sprayed.

[0095] S34: Concrete structure layer is constructed inside the outer shell. A certain length of steel bars are thrown out in layers along the height direction at the tangent point of the hemispheres according to the spacing requirements to prepare for the second construction of the inner half shell reinforcement binding. The structure layer is constructed according to the principle of from top to bottom, layer by layer, thick bottom, thin top, and advancing layer by layer. In this embodiment, the structure layer is 120mm thick and has two layers of steel bars. A layer of concrete is sprayed after a layer of steel bars is tied until the shell wall concrete construction is completed.

[0096] A part of vertical space is reserved at 200mm around the second support assembly 2, and concrete spraying is not carried out temporarily. When the internal inflatable membrane is constructed, the nuts of the vertical end ropes are tightened and then constructed together with the concrete spraying of the inner structural layer of the inner shell.

[0097] S41: Install the internal inflatable membrane. After the outer shell structure is constructed, fix the inflatable membrane material in the path bed section. The fixing order of this section is to fix the bottom of the membrane material first, then fix the vertical end of the steel structure support, then fix the top of the membrane material and the horizontal tangent surface of the inner shell, and finally fix the crescent shape and the vertical tangent surface of the inner shell.

[0098] In this embodiment, on the structural concrete surface where the vertical surface or top surface where the crescent shape is tangent to the inner shell is connected, a wire brush is first used to remove the floating slurry particles on the concrete surface within 200mm on both sides of the line, and a 50mm wide 2-3mm aluminum strip or other soft metal sheet that is not prone to rust is used to flatten and press the edge of the membrane material, and the center of the plate is fixed with nails and drilled every 200mm. In the actual construction process, the above-mentioned construction scope, the size of the aluminum plate, etc. can be set according to actual construction needs. The rope at the bottom of the membrane material is connected to the embedded part of the wall foundation with a groove-type fixing plate or a "C"-type fixing plate and bolts (caps) for fixing. When the inflatable membrane material is pulled from the direction of the bed section of the path to the direction of point d, it should be fixed to the third fixed structure on the third support member 21.

[0099] The vertical surface or top surface where the crescent shape is tangent to the inner half shell should be installed firmly, and the curved surface of the inflatable membrane should be as round and straight as possible. After installation, test inflation should be carried out to check the forming dimensions. Only when they meet the requirements can the next construction process be carried out.

[0100] S42. Inflate the inner shell; before inflation, install an expansion hook on the foundation ground to fix the wire rope. During the inflation process, always pay attention to whether the air film has a large deformation. If so, reduce the air pressure and use the wire rope to pull in the opposite direction of the deformation, then increase the pressure to the construction pressure, and use the steel pipe to support and adjust the verticality of the door frame.

[0101] S43: The inner side of the inner shell is sprayed with polyurethane according to the existing public process.

[0102] S44: The concrete structure layer inside the inner shell is constructed according to the existing public process.

[0103] S5: Door opening and decoration construction.

[0104] Door opening and decoration construction, including: door opening and decoration construction technology can be constructed according to existing public technology.

[0105] This construction method is adopted to add a steel skeleton support structure that is consistent with the structural design shape in the wall where the inflatable membrane structure that is difficult to shape is located. In this embodiment, a bull horn-shaped steel skeleton support structure is added to the outer shell wall of the narrow crescent area. The inflatable membrane and the support structure, the rope at the root of the inflatable membrane and the embedded parts of the ring wall (foundation) are all anchored before the inflatable membrane is inflated. The deformation of the inflatable membrane during inflation is limited. Under the condition of meeting the design shape and size and function unchanged, the construction quality and appearance effect are guaranteed by optimizing the structural design method, and the construction progress is accelerated. It avoids the problem that the local membrane body of the entire spherical shell is not restricted by space during the inflation process, which makes it difficult to ensure the appearance quality of the local shell, especially the crescent shape and the appearance molding effect at the tangent of the crescent and the inner shell cannot meet the design requirements.

[0106] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An irregular shaped air film reinforced concrete structure, characterized in that: It comprises a housing and a supporting structure connected to the housing, wherein: The support structure is arranged at a position of the inflatable membrane structure that is not easy to be shaped, and the support structure comprises at least two support components, and the support components are connected by a connecting component; The support assembly includes an arc-shaped first support assembly and an arc-shaped second support assembly, wherein the second support assembly is located inside the housing, wherein: The inflatable membrane structure includes a first inflatable membrane structure arranged outside and a second inflatable membrane structure located inside the first inflatable membrane structure, the two ends of the first inflatable membrane structure are respectively fixedly arranged on the first supporting assembly and the second supporting assembly, and the two ends of the second inflatable membrane structure are respectively fixedly arranged on the first supporting assembly and the second supporting assembly.

2. The irregular shaped air membrane reinforced concrete structure according to claim 1, characterized in that: The first support assembly includes a first support member and a second support member disposed perpendicularly to each other, and the second support assembly includes a third support member and a fourth support member disposed perpendicularly to each other, wherein: The first support member is provided with a first fixing structure for fixing one end of the first inflatable membrane structure, and the second support member is provided with a second fixing structure for fixing one end of the second inflatable membrane structure; The third supporting member is provided with a third fixing structure and a fourth fixing structure, which are used to fix the other end of the second inflatable membrane structure and the other end of the first inflatable membrane structure respectively.

3. The irregular shaped air-film reinforced concrete structure according to claim 2 is characterized in that: The first fixing structure is configured to include a first fixing member and a first fastener, wherein the first fixing member is used to fix one end of the first inflatable membrane structure, and the first fastener is used to fix the first fixing member and the first inflatable membrane structure to the first supporting member; The second fixing structure is configured to include a second fixing member and a second fastening member, wherein the second fixing member is used to fix one end of the second inflatable membrane structure, and the second fastening member is used to fix the second fixing member and the second inflatable membrane structure to the second supporting member.

4. The irregular shaped air film reinforced concrete structure according to claim 3 is characterized in that: Also includes a first pressing member and a second pressing member, wherein: The first fixing member and the second fixing member both include a groove structure, and the first pressing member and the second pressing member are respectively arranged in the groove structure of the first fixing member and the groove structure of the second fixing member, and are respectively used to press the first inflatable membrane structure and the second inflatable membrane structure.

5. The irregular shaped air film reinforced concrete structure according to claim 3 or 4, characterized in that: The third fixing structure includes a first pressing plate and a third fastener, wherein the first pressing plate is used to press and fix the other end of the second inflatable membrane structure, and the third fastener is used to fix the first pressing plate and the second inflatable membrane structure on the third supporting member; The fourth fixing structure includes a second pressing plate and a fourth fastener, the length of the first pressing plate is smaller than the length of the second pressing plate, wherein the second pressing plate is used to press and fix the other end of the first inflatable membrane structure, and the fourth fastener is used to fix the second pressing plate and the first inflatable membrane structure to the third support member.

6. An irregular shaped air-film reinforced concrete structure according to any one of claims 2 to 4, characterized in that: The first support assembly further comprises a first reinforcement structure, and the second support assembly further comprises a second reinforcement structure, wherein: One end of the first reinforcement structure is connected to the first support member, and the other end of the first reinforcement structure is connected to the second support member; One end of the second reinforcement structure is connected to the third support member, and the other end of the second reinforcement structure is connected to the fourth support member.

7. The irregular shaped air membrane reinforced concrete structure according to claim 5, characterized in that: The first fastener, the second fastener, the third fastener and the fourth fastener all include a screw rod and a nut matched with the screw rod.

8. A construction method for an irregular shaped air film reinforced concrete structure according to any one of claims 1 to 7, characterized in that: The steps include: S1: Wall foundation and ground construction; processing of inflatable membrane structure and supporting structure; S2: Support structure installation; S3: Construction of the outer shell structure, the construction path of the outer shell structure is: along the bottom starting point of the outermost support assembly to the end point of the outer shell structure located away from the support assembly; S4: After the main structure of the outer shell is formed, the internal structure is constructed, and the construction path of the internal structure is: along the point on the support structure that is tangent to the outer shell structure to the intersection of the outer shell structure and the inner support assembly; S5: Door opening and decoration construction.

9. The construction method of the irregular shaped air film reinforced concrete structure according to claim 8 is characterized by: In step S1, the inflatable membrane structure is processed, including evenly setting a fixed structure in a circular circumference with a diameter of 2m at the top of the inflatable membrane structure. When the support structure is processed, the arc-shaped first support component and the arc-shaped second support component are both formed by multi-stage welding; In step S3, the shell structure construction includes: S31: installation of the shell inflation membrane; S32: construction of the shell inflation; S33: spraying of polyurethane on the inner side of the shell; S34: construction of the concrete structure on the inner side of the shell; In step S4, the internal structure construction includes: S41: installation of the internal inflatable membrane; S42, inflation construction of the inner shell; S43: polyurethane spraying on the inner side of the inner shell; S44: construction of the concrete structure layer on the inner side of the inner shell.

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