Double-curved-surface building body and forming method

Abstract

The invention discloses a double-curved-surface building body forming method. The double-curved-surface building body forming method comprises the following steps that S1, a designed building form surface is divided and decomposed into identical unit plates through reasonable plates; s2, a matched connecting piece is designed according to the corner shape of the unit plate, and the connecting piece comprises a built-in plate and two folded edges forming an included angle; s3, the built-in plate of the connecting piece is pre-buried in each corner of the unit plate, and the lower edges of the two folded edges are attached to the edge lines of the corners of the unit plate; s4, determining the positions of the unit plates on the construction site through a building positioning mode; and S5, the folded edges of all the adjacent and parallel connecting pieces are connected and fixed. The construction method disclosed by the invention is suitable for the 360-degree segmented modeling of the polygon, and meets the structural forming of various curved-surface buildings. Required main body components and auxiliary connecting pieces can be prefabricated in batches in a factory and then conveyed to a site to be spliced and formed, so that the construction difficulty is reduced, the construction efficiency is improved, material waste is extremely low, and the construction period and various costs are saved.

Description

Technical Field

[0001] The invention relates to the technical field of a construction method for a hyperbolic building body in the construction field. Background Art

[0002] In the construction industry, many projects demand free-flowing, flexible curves while also requiring lightweight, minimalist structures. Traditional roofing systems often rely on molds for specific shapes, but this styling necessitates molds with only one-to-many or one-to-one capabilities, resulting in high costs and material waste. Another approach utilizes metal components as structural support for the roof, with insulation, waterproofing, and finishes applied on top. However, the external insulation layer, including support nodes and other structures, often requires a greater thickness, which also imposes limitations on design.

[0003] How to better improve construction efficiency and save costs without restrictions on personalized design is an unremitting technological pursuit in the field of intelligent manufacturing. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art and to provide a method for forming a hyperbolic building body, which can be applied to various personalized roof shapes and has simple construction and high efficiency.

[0005] In order to cope with the special-shaped curved surfaces and light and thin features of the building, special-shaped building bodies, such as shell roofs, are divided into basic panel units. The basic panel units are prefabricated in batches in the factory and then transported to the site for splicing and forming.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A method for forming a hyperbolic building body comprises the following steps:

[0008] S1, decompose the designed architectural form into the same unit blocks through rational block division;

[0009] S2, design matching connectors according to the corner shapes of the unit panels, wherein the connectors include an internal plate and two folded edges at an angle;

[0010] S3, embed the built-in plate of the connector into each corner of the unit plate, with the lower edges of the two folded edges aligned with the corner edge lines of the unit plate;

[0011] S4, determining the location of the unit plate at the construction site by means of building positioning;

[0012] S5, connecting and fixing the folded edges of two adjacent and parallel connecting parts.

[0013] Furthermore, the unit panels are equilateral hexagons, with each angle and side length being consistent. Only one type of connector is required, with a 120° folded edge angle, allowing it to be pre-embedded uniformly at every corner of the unit panels, improving factory production efficiency and on-site installation efficiency while also saving costs. Furthermore, the two folded edges are lower than the top surface of the unit panels and feature oblong holes, allowing bolts to penetrate these holes for secure connection during on-site construction. Furthermore, bolt washers of varying thicknesses can be used on-site for further calibration and precise positioning.

[0014] Furthermore, the connecting piece is preferably an integrated bent sheet metal piece, with two folded edges bent at 90°; the connection between the two folded edges can be further connected by filler welding.

[0015] Furthermore, the built-in plate of the connector is fan-shaped and can be fixed by gluing when pre-buried in each corner of the unit plate; or it can be fixed by setting a limiting structure.

[0016] The above-mentioned method for forming a hyperbolic building body can further use a resin-based adhesive material to fill the gaps between the unit panels.

[0017] Beneficial effects of the present invention:

[0018] The method for forming a hyperbolic building body provided by the present invention allows all required main components and auxiliary connecting parts to be prefabricated in batches in a factory and then transported to the site for splicing and forming, thereby reducing the construction difficulty and avoiding the large amount of construction material waste in the prior art. This greatly improves construction efficiency and saves construction time and various costs.

[0019] Since the construction method of the present invention is to fix the built-in plate of the connecting piece to the unit plate in advance, and then connect and lock them one by one to form, the whole is stressed and can be applied to the shape divided into 360 degrees by polygons, meeting the structural forming of various curved building bodies.

[0020] The forming method of the present invention has simple connection nodes for each unit plate, can adapt to splicing at multiple angles, can also be fine-tuned and calibrated during installation, has excellent adaptability and installation portability, and can be designed into standard production parts according to parameters.

[0021] The specific embodiments of the present invention are described below with reference to the accompanying drawings: BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of an embodiment of the method for forming a hyperbolic building body according to the present invention when the connecting piece is separated from the panel unit.

[0023] Figure 2 This is a schematic diagram of an embodiment of the method for forming a hyperbolic building body of the present invention after pre-embedding connectors into the corners of the unit panels.

[0024] Figure 3 This is a schematic diagram of the connection nodes of the unit panels in an embodiment of the method for forming a hyperbolic building body of the present invention.

[0025] Figure 4 This is a schematic diagram of connecting and forming unit panels in an embodiment of the method for forming a hyperbolic building body of the present invention.

[0026] Figure 5 This is a schematic diagram of a shell roof completed according to an embodiment of the method for forming a hyperbolic building body of the present invention.

[0027] Description of reference numerals:

[0028] 1 unit plate, 101 groove, 102 limit pit

[0029] 2 Connectors, 201 embedded base plate, 202 folded edge, oblong hole 202a, 203 bolts DETAILED DESCRIPTION

[0030] The specific embodiments described herein are only used to explain the technical solutions of this patent, and are not intended to limit the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings only show parts related to the disclosed technical solutions, rather than all structures.

[0031] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structures of the device components and / or modules themselves mentioned in the embodiments, if not described in detail, can be understood by those skilled in the art based on existing public technologies or commercially available products.

[0032] Attach Figure 5 Taking the shell roof as an example, it is divided into hexagonal unit panels. The following embodiments all use such hexagonal unit panels as an example to provide a method for forming a hyperbolic building body.

[0033] Prepare Unit Plate 1:

[0034] In the factory, 80 density PU (polyurethane) foam is fully matured and formed, and the formed foam blocks are processed into hyperbolic foam blocks with a side length of 600mm and a thickness of 30mm through CNC or other milling production lines. Figure 1 , mill out fan-shaped grooves with a radius of 85mm and a depth of 20mm at each corner of the hexagonal foam block, and mill out the arc at an obtuse angle of 141°; on this basis, mill out a 3mm limit pit downward at the top of the fan.

[0035] Prepare connector 2:

[0036] The connecting parts are made of Q235 3mm steel plate, which is laser cut in the factory. Figure 1The connector consists of an internal panel 201 and two angled hems 202. The height of the two hems needs to be lower than the top surface of the PU foam block, and each hem is provided with an oblong hole 202a. The internal panel 201 is machined into a fan-shaped shape with a radius of 63.1mm and a central angle of 120°. The two hems are formed by bending the pre-cut hems 90° using a sheet metal bending process. The two hems are connected by fillet welding. The two hems are 19mm high, 87mm long, and 3mm thick, and the angle between them and the embedded panel is approximately 51°.

[0037] Embedded connectors to unit panels:

[0038] The processed metal connector 2 is placed on the processed groove 101 of the foam block 1 , and the outer edge of the built-in plate 101 is placed in the limiting pit 102 .

[0039] The foam block with the connector installed is coated with carbon fiber multiple times: the foam block with the connector installed is placed on the platform for carbon fiber coating, and 6 layers of 3K (0-90) carbon fiber woven cloth and 7 layers of 12K (0-90) carbon fiber woven cloth are wrapped in sequence, and finally a universal spray adhesive is used to preliminarily fix the edges. The unit plate wrapped with carbon fiber is further formed and cured using wet molding technology: the RTM process is used to place the unit plate with the connector fixed on the diversion mold, and a vacuum film about 200mm beyond the edge is set on the upper and lower parts respectively. The edges are sealed with double-sided tape all around, and drainage pipes are set at each corner inside to evenly introduce and discharge the resin. A diversion pump is installed to check the sealing, and a pressure of 0.08-0.09Mpa is applied for diversion; then the resin infiltration state is observed and judged, and the diversion valve is closed after completion; finally, it is left to stand for more than 24 hours, and demoulding is completed after curing to obtain the unit plate with the connector.

[0040] On-site splicing and forming:

[0041] Before on-site construction, the unit panels with composite connectors are subjected to a load test to check whether their mechanical properties meet the design requirements. After confirmation, they are transported to the construction site for splicing.

[0042] refer to Figure 3 and Figure 4 During construction, each unit plate is set in the exact position by positioning methods such as laying out lines and marking points, and the adjacent unit plates are locked and fixed by cylindrical head bolts penetrating into the oblong holes of the connectors. If necessary, bolt washers of different thicknesses can be used for calibration and accurate positioning. The type of bolt 203 selected is compatible with the oblong hole on the folding edge 202. When both are of industry standard size, commercially available parts can be used. After the connection is fixed, the gap is filled with resin structural adhesive. After all the splicing is completed, it is obtained. Figure 5 The target shell roof is shown.

[0043] The hyperbolic building body obtained by the embodiment of the present invention has connecting parts used for forming, which can also provide structural support for the indoor ceiling system. In a series of simulation experiments and tests, it passed the structural force calculation, further simplified the construction steps, and saved materials.

[0044] The above is an illustration of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for forming a hyperbolic building body, comprising the following steps: S1, decompose the designed architectural form into the same unit blocks through rational block division; S2, design matching connectors according to the corner shapes of the unit panels, wherein the connectors include an internal plate and two folded edges at an angle; S3, embed the built-in plate of the connector into each corner of the unit plate, with the lower edges of the two folded edges aligned with the corner edge lines of the unit plate; S4, determining the location of the unit plate at the construction site by means of building positioning; S5, connecting and fixing the folded edges of two adjacent and parallel connecting parts.

2. The method for forming a hyperbolic building body according to claim 1, wherein: The unit plate is an equilateral hexagon, and the angles between the two folded edges of the connecting piece are both 120 degrees.

3. The method for forming a hyperbolic building body according to claim 1, wherein: The heights of the two folded edges are lower than the top surface of the unit plate.

4. The method for forming a hyperbolic building body according to claim 1, wherein: The two folded edges are provided with oblong holes, and bolts are used to penetrate the oblong holes for connection and fixation during on-site construction.

5. The method for forming a hyperbolic building body according to claim 4, wherein: Use bolt washers of different thicknesses to calibrate and accurately position them at the construction site.

6. The method for forming a hyperbolic building body according to claim 1, wherein: The connecting piece is an integrated bent sheet metal piece, with two folded edges bent at 90°.

7. The method for forming a hyperbolic building body according to claim 1, wherein: Fill the two folded edges with welded connections.

8. The method for forming a hyperbolic building body according to claim 1, wherein: The built-in plate of the connecting piece is fan-shaped.

9. The method for forming a hyperbolic building body according to claim 1, wherein: When the built-in plate of the connector is embedded in each corner of the unit plate, it is fixed with glue; or it is fixed by setting a limiting structure.

10. The method for forming a hyperbolic building body according to claim 1, wherein: After S5 connects and fixes all the unit panels, it uses resin-based adhesive material to fill the gaps between the unit panels.

11. A building body obtained by the method for forming a hyperbolic building body according to any one of claims 1 to 10.

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