A method for manufacturing a latticed shell structure

Abstract

This invention belongs to the field of building structure technology and discloses a method for fabricating a reticulated shell structure. The method uses software modeling to extract the three-dimensional coordinates of the core cylinder's base plate center and the vertical distances of various points on the core cylinder's base plate from the horizontal plane containing the base plate center. Based on the coordinates, the core cylinder is placed in the corresponding planar position and adjusted to the appropriate height. According to the vertical distances of each point from the horizontal plane containing the base plate center, the core cylinder is twisted around the base plate center to accurately place it. Finally, the members between the core cylinders are assembled to complete the assembly of the reticulated shell structure. This method combines software and hardware, improving the accuracy of the core cylinder's position, material utilization and turnover rate during fabrication and installation, and also saving on material waste during material preparation.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to a method for manufacturing a reticulated shell structure. Background Technology

[0002] A grid shell structure is a spatial bracing structure composed of many members arranged in two or more directions according to a certain pattern and connected by nodes. Due to its high spatial stiffness, good integrity and stability, excellent seismic performance, and pleasing architectural aesthetics, it is used in buildings with various support conditions and different planar shapes and spans.

[0003] Currently, when fabricating grid shell structures, the main method involves using a jig to measure and lay out the positions of components on the main structural members before assembling and welding them together. This method has limited overall installation accuracy and is prone to significant cumulative assembly errors, especially when there are many members with varying inclination and torsion angles. This can easily lead to larger installation errors and poor assembly precision. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing a reticulated shell structure, which can accurately control the position and angle of the core cylinder at the intersection of each member, so as to improve assembly accuracy and assembly efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A method for fabricating a reticulated shell structure is provided, comprising the following steps:

[0007] S1: Multiple points are set at intervals along the circumference of the core tube bottom plate. The shell structure is modeled by computer software, and the three-dimensional coordinates (X,Y,Z) of the center of each core tube bottom plate, the distance difference A between the two ends of the core tube bottom plate in the vertical direction, and the vertical distance △H of each point from the horizontal plane where the center of the bottom plate is located are extracted.

[0008] S2: According to the coordinates (X,Y,Z), place each core cylinder in the corresponding planar position and adjust it to the corresponding position height;

[0009] S3: Based on the vertical distance △H, twist the core cylinder around the center of the base plate so that the vertical distance from each point on the bottom plate of the core cylinder to the horizontal plane where the center of the base plate is located is △H;

[0010] S4: Assemble the rods between each core cylinder to complete the assembly of the reticulated shell structure.

[0011] As an optional method for fabricating the reticulated shell structure, in step S2, the core cylinder is placed on an adjustable support, the adjustable support comprising:

[0012] Telescopic pole, supported on the ground, with adjustable length in the vertical direction;

[0013] A placement plate, connected to the telescopic rod, is configured to support the core cylinder.

[0014] As an alternative method for manufacturing the reticulated shell structure, the adjustable support further includes a support plate, with one end of the telescopic rod away from the placement plate connected to the support plate, and the support plate being configured to support the ground.

[0015] As an optional method for manufacturing the reticulated shell structure, the placement plate and / or the support plate are provided with an anti-slip structure.

[0016] As an optional solution for the fabrication method of the reticulated shell structure, a pose adjustment platform is provided between the placement plate and the core cylinder, the pose adjustment platform comprising:

[0017] The lower base plate is supported on the placement plate;

[0018] An upper base plate, spaced apart from the lower base plate, is configured to support the core cylinder;

[0019] Multiple support components are evenly spaced along the circumference of the lower base plate. Each support component is rotatably connected between the lower base plate and the upper base plate, and each support component is capable of extending and retracting along its own extension direction.

[0020] The connection nodes of the multiple support components and the upper base plate correspond one-to-one with the multiple points.

[0021] As an optional method for manufacturing the reticulated shell structure, each of the support components includes two support members, which are arranged in an inverted V shape.

[0022] The first end of the support member is rotatably connected to the lower base plate via a ball joint bearing, and the second end is rotatably connected to the upper base plate via a universal joint. Each support member is telescopic along its own extension direction.

[0023] As an optional method for fabricating the reticulated shell structure, the vertical distance between the upper base plate and the lower base plate when they are parallel is H, the distance between the first end of the support member and the projection point of the point on the lower base plate is a, and the elongation of each support member is...

[0024] As an optional method for fabricating the reticulated shell structure, each support member includes:

[0025] The first rod is connected to the ball bearing, and an adjustment cavity is provided on the first rod;

[0026] The second rod has one end adjustablely inserted into the adjustment cavity, and the other end connected to the universal joint;

[0027] The outer wall of the first rod is provided with scale lines. When the lower base plate and the upper base plate are parallel in the vertical direction, the end of the second rod that extends into the adjustment cavity is aligned with the 0 scale line.

[0028] As an optional solution for the fabrication method of the reticulated shell structure, a limiting member is provided on the upper base plate, and a limiting groove is provided on the core cylinder. The limiting member can extend into the limiting groove so that the core cylinder is limited to the upper base plate.

[0029] As an alternative method for fabricating a reticulated shell structure, the rods are box-shaped structures.

[0030] The beneficial effects of this invention are:

[0031] This invention provides a method for fabricating a reticulated shell structure. Through software modeling, the three-dimensional coordinates of the core cylinder's base plate center and the vertical distances of various points on the base plate from the horizontal plane containing the base plate center are extracted. Based on these coordinates, the core cylinder is placed in its corresponding planar position and adjusted to the appropriate height. According to the vertical distances of each point from the horizontal plane containing the base plate center, the core cylinder is twisted around the base plate center to ensure accurate placement. Finally, the members connecting the various core cylinders are assembled to complete the assembly of the reticulated shell structure. This method combines software and hardware, improving the accuracy of the core cylinder's position, material utilization, and turnover rate during fabrication and installation, while also saving on material waste during material preparation. Attached Figure Description

[0032] Figure 1 This is a top view of the reticulated shell structure provided in the specific embodiments of the present invention;

[0033] Figure 2 This is a bottom view of the core cylinder provided in a specific embodiment of the present invention;

[0034] Figure 3 This is a side view of the core cylinder provided in a specific embodiment of the present invention;

[0035] Figure 4 This is a side view of the core cylinder, posture adjustment platform, and adjustable support provided in a specific embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the posture adjustment platform and core cylinder provided in a specific embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the posture adjustment platform provided in a specific embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram illustrating the manufacturing process of the reticulated shell structure provided in a specific embodiment of the present invention.

[0039] In the picture:

[0040] 1. Core tube; 10. Point; 11. Base plate center; 12. Projection point;

[0041] 2. Rods;

[0042] 3. Adjustable support; 31. Telescopic rod; 32. Placement plate; 33. Support plate;

[0043] 4. Posture adjustment platform; 41. Lower base plate; 42. Upper base plate; 43. Support assembly; 431. Support component; 4311. First rod; 4312. Second rod. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0048] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0049] This embodiment provides a method for fabricating a reticulated shell structure, used to create structures such as... Figure 1 The illustrated reticulated shell structure includes multiple welded core cylinders 1 and multiple rods 2. The method includes the following steps:

[0050] S1: As Figure 2 As shown, the bottom plate of the core cylinder 1 has multiple points 10 spaced around the circumference. The shell structure is modeled using computer software, and the three-dimensional coordinates (X,Y,Z) of the center 11 of each bottom plate of the core cylinder 1, as well as the vertical distance △H of each point 10 from the horizontal plane where the center 11 of the bottom plate is located, are extracted.

[0051] Specifically, using the design model files and data interface API of the steel structure 3D design software, and with the help of secondary development technology, data information such as the geometry, configuration, and structural features of the components is automatically extracted. This data is then digitized to generate formatted feature data files, obtaining the 3D coordinates (X, Y, Z) of the center 11 of each core tube 1's base plate, as well as... Figure 3 The vertical distance ΔH between each point 10 and the horizontal plane where the center 11 of the base plate is located is shown. When the position of point 10 is higher than the position of the horizontal plane where the center 11 of the base plate is located, ΔH takes a positive value; when the position of point 10 is lower than the position of the horizontal plane where the center 11 of the base plate is located, ΔH takes a negative value; that is, upward movement is defined as positive and downward movement as negative.

[0052] Specifically, refer to Figure 2 In this embodiment, three points 10 are arranged at circumferential intervals on the bottom plate of the core cylinder 1.

[0053] For example, the 3D design software for steel structures is existing technology and will not be described in detail here.

[0054] S2: Based on the coordinates (X,Y,Z) of the center 11 of the bottom plate of each core cylinder 1, place each core cylinder 1 in the corresponding plane position and adjust it to the corresponding position height.

[0055] Specifically, based on the X and Y values, the core cylinder 1 is placed at the corresponding position on the XY plane (i.e., the horizontal plane); based on the Z value, the center 11 of the bottom plate of the core cylinder 1 is adjusted to the corresponding height.

[0056] Optionally, the core tube 1 is placed on the adjustable support 3. For example... Figure 4 As shown, the adjustable support 3 includes a telescopic rod 31 and a placement plate 32. The telescopic rod 31 is supported on the ground and its length in the vertical direction is adjustable. The placement plate 32 is connected to the telescopic rod 31 and is configured to support the core cylinder 1. This configuration facilitates the arrangement of the core cylinder 1 on a horizontal plane and makes it easy to adjust the core cylinder 1 to a suitable position and height, thereby improving manufacturing efficiency.

[0057] Furthermore, continue to refer to Figure 4 The adjustable support 3 also includes a support plate 33, with the end of the telescopic rod 31 away from the placement plate 32 connected to the support plate 33. The support plate 33 is configured to support the ground. This configuration increases the contact area between the adjustable support 3 and the ground, ensuring the stability of the core cylinder 1.

[0058] Furthermore, the placement plate 32 and / or support plate 33 are provided with anti-slip structures. Specifically, the anti-slip structure is an anti-slip pad, such as a rubber pad, provided on the side of the placement plate 32 facing the core cylinder 1 and / or the side of the support plate 33 facing the ground; or, the anti-slip structure is an anti-slip protrusion provided on the side of the placement plate 32 facing the core cylinder 1 and / or the side of the support plate 33 facing the ground. The anti-slip protrusion can be dot-shaped protrusions or textured protrusions of any shape. Its function is to increase the contact friction between the placement plate 32 and the core cylinder 1 and / or the support plate 33 and the ground, so as to prevent movement. The specific form is similar to the prior art, and is not specifically limited in this embodiment, as long as it can increase friction.

[0059] S3: Based on the vertical distance △H, twist the core cylinder 1 around the center 11 of the base plate so that the vertical distance of each point 10 on the base plate of the core cylinder 1 from the horizontal plane where the center 11 of the base plate is located is △H;

[0060] Specifically, by rotating the core cylinder 1 around the center 11 of the bottom plate of the core cylinder 1, the vertical distance from the highest point of the bottom plate of the core cylinder 1 to the XY plane is △H, which can complete the accurate placement of each core cylinder 1.

[0061] Optionally, a position adjustment platform 4 is provided between the placement plate 32 and the core cylinder 1. For example... Figure 5As shown, the posture adjustment platform 4 includes a lower base plate 41, an upper base plate 42, and multiple support components 43. The lower base plate 41 is supported on a placement plate 32, and the upper base plate 42 is spaced apart from the lower base plate 41 and configured to support the core cylinder 1. Multiple support components 43 are evenly spaced along the circumference of the lower base plate 41. Each support component 43 is rotatably connected between the lower base plate 41 and the upper base plate 42, and each support component 43 can extend and retract along its own extension direction. The connection nodes between the multiple support components 43 and the upper base plate 42 correspond one-to-one with multiple points 10. With this configuration, the position of the core cylinder 1 can be accurately adjusted by adjusting the extension, retraction, and rotation of each support component 43.

[0062] Specifically, in this embodiment, the pose adjustment platform 4 includes three support components 43, and the connection nodes of the three support components 43 and the upper base plate 42 correspond one-to-one with the three points 10, so as to accurately adjust the core cylinder 1 to the corresponding position.

[0063] Furthermore, continue to refer to Figure 5 Each support assembly 43 includes two support members 431 arranged in an inverted V shape, providing good stability. The first end of each support member 431 is rotatably connected to the lower base plate 41 via a ball joint bearing, and the second end is rotatably connected to the upper base plate 42 via a universal joint. Each support member 431 is extendable and retractable along its own extension direction. This arrangement allows for easy and convenient adjustment of various points 10 of the core cylinder 1 to their corresponding positions by adjusting the extension and retraction of the two support members 431.

[0064] Specifically, ball joint bearings and universal joints are existing devices that have been disclosed in the prior art. Their specific structures and principles are based on the prior art and will not be described in detail here.

[0065] Furthermore, the vertical distance between the upper base plate 42 and the lower base plate 41 when they are parallel is H, such as... Figure 6 As shown, the distance between the first end of the support member 431 and the projection point 12 of point 10 on the lower base plate 41 is 'a', and the elongation of each support member 431 is 'a'. If △L is positive, it means that the support member 431 needs to be extended; if △L is negative, it means that the support member 431 needs to be shortened. The above settings can more accurately adjust the position of the core cylinder 1 and improve the assembly accuracy of the mesh shell structure.

[0066] Furthermore, referring to Figure 5Each support member 431 includes a first rod 4311 and a second rod 4312. The first rod 4311 is connected to a ball bearing and has an adjustment cavity. One end of the second rod 4312 extends into the adjustment cavity in an adjustable manner, and the other end is connected to a universal joint. The outer wall of the first rod 4311 has graduation lines (not shown in the figure). When the lower base plate 41 and the upper base plate 42 are parallel in the vertical direction, the end of the second rod 4312 extending into the adjustment cavity is aligned with the 0 graduation line. By combining the calculated elongation of the support member 431 with the graduation lines, the extension and retraction of each support member 431 can be quickly and accurately adjusted, thereby ensuring the accurate positioning of the core cylinder 1.

[0067] Optionally, a limiting component is provided on the upper base plate 42, and a limiting groove is formed on the core cylinder 1. Figure 2 (Not shown in the drawing) The limiting member can extend into the limiting groove so that the core cylinder 1 is limited on the upper base plate 42, so as to prevent the core cylinder 1 from slipping off the upper base plate 42 during rotation, and further improve the stability of the core cylinder 1 placed on the upper base plate 42.

[0068] Specifically, the limiting member is a limiting post protruding from the upper base plate 42, which can extend into the limiting groove on the core cylinder 1.

[0069] S4: Assemble the rods 2 between each core cylinder 1 to complete the assembly of the reticulated shell structure.

[0070] Specifically, such as Figure 7 As shown, the rods 2 between each core cylinder 1 are welded together with the connected core cylinder 1 to complete the assembly of the grid shell structure.

[0071] Optionally, each member 2 is a box-shaped structure, that is, each member 2 is a hollow structure, which has good load-bearing performance, while saving materials and reducing costs.

[0072] The above method combines software and hardware, which improves the accuracy of the placement of each core cylinder 1 in the reticulated shell structure, as well as the material utilization and turnover rate during the manufacturing and installation process, while also saving material waste during the material cutting process.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for manufacturing a reticulated shell structure, characterized in that, Includes the following steps: S1: The bottom plate of the core cylinder (1) is provided with multiple points (10) at intervals along the circumference. The shell structure is modeled by computer software, and the three-dimensional coordinates (X,Y,Z) of the center (11) of each bottom plate of the core cylinder (1) are extracted, as well as the vertical distance △H of each point (10) from the horizontal plane where the center (11) of the bottom plate is located. S2: According to the coordinates (X,Y,Z), place each of the core cylinders (1) in the corresponding plane position and adjust it to the corresponding position height; S3: Based on the vertical distance △H, twist the core cylinder (1) around the center (11) of the base plate so that the vertical distance between each point (10) on the base plate of the core cylinder (1) and the horizontal plane where the center (11) of the base plate is located is △H; S4: Assemble the rods (2) between each of the core cylinders (1) to complete the assembly of the reticulated shell structure; In step S2, the core cylinder (1) is placed on the adjustable support (3), the adjustable support (3) comprising: Telescopic pole (31), supported on the ground, with adjustable length in the vertical direction; A placement plate (32), connected to the telescopic rod (31), is configured to carry the core cylinder (1); A pose adjustment platform (4) is provided between the placement plate (32) and the core cylinder (1), and the pose adjustment platform (4) includes: The lower base plate (41) is supported on the placement plate (32); The upper base plate (42) is spaced apart from the lower base plate (41) and is configured to support the core cylinder (1); Multiple support components (43) are evenly spaced along the circumference of the lower base plate (41). Each support component (43) is rotatably connected between the lower base plate (41) and the upper base plate (42), and each support component (43) can extend and retract along its own extension direction. The connection nodes of the multiple support components (43) and the upper base plate (42) correspond one-to-one with the multiple points (10); Each of the support components (43) includes two support members (431), which are arranged in an inverted V shape; The first end of the support member (431) is rotatably connected to the lower base plate (41) via a ball bearing, and the second end is rotatably connected to the upper base plate (42) via a universal joint. Each support member (431) is telescopic along its own extension direction.

2. The method for manufacturing a reticulated shell structure according to claim 1, characterized in that, The adjustable support (3) further includes a support plate (33), and one end of the telescopic rod (31) away from the placement plate (32) is connected to the support plate (33), which is configured to support the ground.

3. The method for manufacturing a reticulated shell structure according to claim 2, characterized in that, The placement plate (32) and / or the support plate (33) are provided with anti-slip structures.

4. The method for manufacturing a reticulated shell structure according to claim 1, characterized in that, The vertical distance between the upper base plate (42) and the lower base plate (41) when they are parallel is H. The distance between the first end of the support member (431) and the projection point of the point (10) on the lower base plate (41) is a. The elongation of each support member (431) is...

5. The method for manufacturing a reticulated shell structure according to claim 4, characterized in that, Each support member (431) includes: The first rod (4311) is connected to the ball bearing, and an adjustment cavity is provided on the first rod (4311); The second rod (4312) has one end adjustablely inserted into the adjustment cavity, and the other end connected to the universal joint; The first rod (4311) has a scale line on its outer wall. When the lower base plate (41) and the upper base plate (42) are parallel in the vertical direction, the end of the second rod (4312) that extends into the adjustment cavity is aligned with the 0 scale line.

6. The method for manufacturing a reticulated shell structure according to claim 1, characterized in that, A limiting member is provided on the upper base plate (42), and a limiting groove is provided on the core cylinder (1). The limiting member can extend into the limiting groove so that the core cylinder (1) is limited to the upper base plate (42).

7. The method for manufacturing a reticulated shell structure according to any one of claims 1-6, characterized in that, The rod (2) is a box-shaped structure.

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