Manufacturing method of latticed shell structure

Abstract

The invention belongs to the technical field of building structures, and discloses a latticed shell structure manufacturing method. According to the method, through software modeling, three-dimensional coordinates of the center of a core cylinder bottom plate and the vertical distance between each point position on the core cylinder bottom plate and the horizontal plane where the center of the bottom plate is located are extracted. According to the coordinates, the core cylinder is placed at the corresponding plane position and adjusted to the corresponding position height; and twisting the core cylinder around the center of the bottom plate according to the vertical distance between each point position and the horizontal plane where the center of the bottom plate is located, thereby completing accurate placement of the core cylinder. And finally, the rod pieces between the core cylinders are assembled, and assembling and manufacturing of the latticed shell structure are completed. According to the method, the mode of combining software and hardware is used, the accuracy of the position of the core cylinder and the material utilization rate and turnover rate in the manufacturing and installing process are improved, and meanwhile loss in the material discharging process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, and in particular to a method for manufacturing a lattice shell structure. Background Art

[0002] The lattice shell structure is a kind of lattice space bar structure composed of many bars arranged in two or several directions according to a certain rule and connected by nodes. Due to its large spatial rigidity, good integrity and stability, good seismic performance and good architectural modeling effect, it is used in buildings with various support conditions, various plane shapes, and large and small spans.

[0003] At present, when making lattice shell structures, the main method is to use a frame to measure and lay out the positions of the components on the main structural parts and then assemble and weld them into shape. The overall installation accuracy is limited, and it is easy to have a large cumulative assembly error, especially when there are many rods and the inclination and torsion angles between the rods are different, which is more likely to cause large installation errors and poor assembly accuracy. Summary of the invention

[0004] The object of the present invention is to provide a method for manufacturing a lattice shell structure, which can accurately control the position and angle of the core tube at the intersection node of each rod member to improve the assembly accuracy and assembly efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions:

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

[0007] S1: The core barrel bottom plate is provided with a plurality of points at intervals along the circumferential direction. The lattice shell structure is modeled by computer software, and the three-dimensional coordinates (X, Y, Z) of the center of each core barrel bottom plate and the distance difference A between the two opposite ends of the core barrel bottom plate in the vertical direction, as well as the vertical distance △H of each point from the horizontal plane where the bottom plate center is located are extracted;

[0008] S2: According to the coordinates (X, Y, Z), each of the core barrels is placed at a corresponding plane position and adjusted to a corresponding position height;

[0009] S3: twisting the core tube around the center of the bottom plate according to the vertical distance △H, so that the vertical distance between each point on the bottom plate of the core tube and the horizontal plane where the center of the bottom plate is located is △H;

[0010] S4: Assemble the rods between the core tubes to complete the assembly of the lattice shell structure.

[0011] As an optional solution of the method for manufacturing a lattice shell structure, in step S2, the core tube is placed on an adjustable support, and the adjustable support includes:

[0012] A telescopic rod, supported on the ground and adjustable in length in the vertical direction;

[0013] A placement plate is connected to the telescopic rod and is configured to carry the core barrel.

[0014] As an optional solution for the method of manufacturing a lattice shell structure, the adjustable support further includes a support plate, one end of the telescopic rod away from the placement plate is connected to the support plate, and the support plate is configured to be supported on the ground.

[0015] As an optional solution of the method for manufacturing the lattice shell structure, an anti-slip structure is provided on the placement plate and / or the support plate.

[0016] As an optional solution of the method for manufacturing the lattice shell structure, a posture adjustment platform is provided between the placement plate and the core tube, and the posture adjustment platform includes:

[0017] A lower base plate supported on the placement plate;

[0018] an upper base plate, spaced apart from the lower base plate and configured to carry the core barrel;

[0019] A plurality of support components are evenly spaced along the circumference of the lower base plate, each of the support components is rotatably connected between the lower base plate and the upper base plate, and each of the support components can be extended and retracted along its own extension direction;

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

[0021] As an optional solution of the method for manufacturing the lattice shell structure, each of the support assemblies includes two support members, and the two support members 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 bearing, and the second end is rotatably connected to the upper base plate via a universal joint. Each of the support members is retractable along its own extension direction.

[0023] As an optional solution for the method of making a lattice shell structure, the vertical spacing when the upper bottom plate is parallel to the lower bottom plate is H, the distance between the first end of the support member and the projection point of the point on the lower bottom plate is a, and the elongation of each support member is

[0024] As an optional solution for the method of manufacturing the lattice shell structure, each support member includes:

[0025] A first rod connected to the ball bearing, wherein the first rod is provided with an adjustment cavity;

[0026] A second rod, one end of which extends into the adjustment cavity in an adjustable manner, and the other end of which is connected to the universal joint;

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

[0028] As an optional solution for the method of manufacturing the lattice shell structure, a limiting member is arranged on the upper base plate, a limiting groove is provided on the core tube, and the limiting member can extend into the limiting groove to limit the core tube to the upper base plate.

[0029] As an optional solution for the method of manufacturing the lattice shell structure, the rods are of box-type structure.

[0030] Beneficial effects of the present invention:

[0031] The present invention provides a method for making a lattice shell structure. Through software modeling, the three-dimensional coordinates of the center of the core tube bottom plate and the vertical distances of each point on the core tube bottom plate from the horizontal plane where the center of the bottom plate is located are extracted. According to the coordinates, the core tube is placed in a corresponding plane position and adjusted to a corresponding position height; according to the vertical distances of each point from the horizontal plane where the center of the bottom plate is located, the core tube is twisted around the center of the bottom plate to complete the accurate placement of the core tube. Finally, the rods between the core tubes are assembled to complete the assembly and production of the lattice shell structure. The method uses a combination of software and hardware to improve the accuracy of the core tube position and the material utilization rate and turnover rate during the production and installation process, and also saves the loss of materials during the material cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a top view of a lattice shell structure provided in an embodiment of a specific implementation manner of the present invention;

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

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

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

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

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

[0038] Figure 7 It is a schematic diagram of the process of manufacturing a lattice shell structure provided in an embodiment of a specific implementation manner of the present invention.

[0039] In the figure:

[0040] 1. Core barrel; 10. Point position; 11. Center of base plate; 12. Projection point;

[0041] 2. Rods;

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

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

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0049] This embodiment provides a method for manufacturing a lattice shell structure, which is used to manufacture Figure 1 The lattice shell structure shown in the figure comprises a plurality of welded core tubes 1 and a plurality of rods 2. The method comprises the following steps:

[0050] S1: Figure 2 As shown, the bottom plate of the core tube 1 is provided with a plurality of points 10 at intervals along the circumferential direction, and a lattice shell structure is modeled by computer software, and the three-dimensional coordinates (X, Y, Z) of the center 11 of the bottom plate of each core tube 1 and the vertical distance △H of each point 10 from the horizontal plane where the bottom plate center 11 is located are extracted;

[0051] Specifically, the design model file and data interface API of the steel structure 3D design software are used to automatically extract the component geometry, configuration and structural characteristics and other data information with the help of secondary development technology, and the data is digitized to generate a formatted feature data file, and the 3D coordinates (X, Y, Z) of the center 11 of the bottom plate of each core tube 1 are obtained, as well as Figure 3 The vertical distance △H between each point 10 and the horizontal plane where the center 11 of the bottom plate is located is shown. When the position of the point 10 is higher than the horizontal plane where the center 11 of the bottom plate is located, △H takes a positive value; when the position of the point 10 is lower than the horizontal plane where the center 11 of the bottom plate is located, △H takes a negative value; that is, upward movement is defined as positive, and downward movement is defined as negative.

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

[0053] For example, the steel structure three-dimensional design software is a prior art and will not be described in detail here.

[0054] S2: According to the coordinates (X, Y, Z) of the center 11 of the bottom plate of each core tube 1, each core tube 1 is placed at a corresponding plane position and adjusted to a corresponding position height.

[0055] Specifically, according to the X value and the Y value, the core tube 1 is placed at a corresponding position on the XY plane (ie, the horizontal plane); according to the Z value, the center 11 of the bottom plate of the core tube 1 is adjusted to the height of the corresponding position.

[0056] Optionally, the core barrel 1 is placed on an adjustable support 3. Figure 4 As shown, the adjustable support 3 includes a telescopic rod 31 and a placement plate 32, wherein the telescopic rod 31 is supported on the ground and its length along the vertical direction is adjustable; the placement plate 32 is connected to the telescopic rod 31 and is configured to carry the core barrel 1. The above arrangement can facilitate the arrangement of the core barrel 1 on a horizontal plane and the adjustment of the core barrel 1 to a suitable position height, which is conducive to improving the production efficiency.

[0057] Further, continue to refer to Figure 4 The adjustable support 3 also 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, and the support plate 33 is configured to be supported on the ground. The above arrangement can increase the contact area between the adjustable support 3 and the ground, ensuring the stability of the placement of the core tube 1.

[0058] Furthermore, an anti-skid structure is provided on the placement plate 32 and / or the support plate 33. Specifically, the anti-skid structure is an anti-skid pad, such as a rubber pad, provided on the side of the placement plate 32 facing the core barrel 1 and / or the side of the support plate 33 facing the ground; or, the anti-skid structure is an anti-skid protrusion provided on the side of the placement plate 32 facing the core barrel 1 and / or the side of the support plate 33 facing the ground, and the anti-skid protrusion can be a dot-shaped protrusion or a pattern protrusion of any shape, and its function is to increase the contact friction between the placement plate 32 and the core barrel 1 and / or the support plate 33 and the ground to prevent movement. Its specific form refers to the prior art, and is not specifically limited in this embodiment, as long as it can play a role in increasing friction.

[0059] S3: According to the vertical distance △H, twist the core tube 1 around the bottom plate center 11, so that the vertical distance between each point 10 on the bottom plate of the core tube 1 and the horizontal plane where the bottom plate center 11 is located is △H;

[0060] Specifically, the core barrel 1 is rotated around the center 11 of the bottom plate of the core barrel 1 so that the vertical distance between the highest point of the bottom plate of the core barrel 1 and the XY plane is ΔH, so that each core barrel 1 can be accurately placed.

[0061] Optionally, a posture adjustment platform 4 is provided between the placement plate 32 and the core barrel 1. Figure 5As shown, the posture adjustment platform 4 includes a lower base plate 41, an upper base plate 42 and a plurality of support components 43. Among them, the lower base plate 41 is supported on the placement plate 32, and the upper base plate 42 is spaced apart from the lower base plate 41, and is configured to carry the core tube 1; a plurality of support components 43 are evenly spaced along the circumference of the lower base plate 41, and 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 be extended and retracted along its own extension direction, and the connection nodes of the plurality of support components 43 and the upper base plate 42 correspond to the plurality of points 10 one by one. With the above arrangement, the position of the core tube 1 can be accurately adjusted by adjusting the extension and rotation of each support component 43.

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

[0063] Further, continue to refer to Figure 5 Each support assembly 43 includes two support members 431, and the two support members 431 are arranged in an inverted V shape, which has good stability. The first end of the support member 431 is rotatably connected to the lower base plate 41 through a ball bearing, and the second end is rotatably connected to the upper base plate 42 through a universal joint. Each support member 431 is retractable along its own extension direction. The above arrangement adjusts the retraction of the two support members 431 to adjust each point 10 of the core barrel 1 to a corresponding position, and the adjustment method is simple and convenient, and easy to operate.

[0064] Specifically, the ball bearing and the universal joint are both existing devices that have been disclosed in the prior art. Their specific structures and principles refer to 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. Figure 6 As shown, the distance between the first end of the support member 431 and the projection point 12 of the point 10 on the lower bottom plate 41 is a, and the elongation of each support member 431 is If ΔL is a positive value, it means that the support member 431 needs to be extended; if ΔL is a negative value, it means that the support member 431 needs to be shortened. The above arrangement can more accurately adjust the position of the core tube 1 and improve the assembly accuracy of the lattice shell structure.

[0066] Further, refer to Figure 5Each support member 431 includes a first rod 4311 and a second rod 4312. The first rod 4311 is connected to the ball bearing. An adjustment cavity is provided on the first rod 4311. One end of the second rod 4312 is adjustable and extends into the adjustment cavity, and the other end is connected to the universal joint. A scale line (not shown) is provided on the outer wall of the first rod 4311. 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 scale line. Combined with the calculated elongation of the support member 431 and the scale line, the extension and contraction of each support member 431 can be adjusted quickly and accurately, thereby ensuring the accurate position of the core tube 1.

[0067] Optionally, a limiting member is provided on the upper base plate 42, and a limiting groove is provided on the core tube 1 ( Figure 2 The limiting member can extend into the limiting groove to limit the core barrel 1 on the upper base plate 42 to prevent the core barrel 1 from sliding off the upper base plate 42 during rotation, thereby further improving the stability of the core barrel 1 placed on the upper base plate 42.

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

[0069] S4: Assemble the rods 2 between the core tubes 1 to complete the assembly of the lattice shell structure.

[0070] Specifically, Figure 7 As shown, the rods 2 between the core tubes 1 are welded together with the connected core tubes 1 to complete the assembly of the lattice shell structure.

[0071] Optionally, each rod 2 is a box-type structure, that is, each rod 2 is a hollow structure, which has good force-bearing performance and can save materials and reduce costs.

[0072] The above method adopts a combination of software and hardware to improve the accuracy of the placement of each core tube 1 in the lattice shell structure, as well as the material utilization rate and turnover rate during the manufacturing and installation process, while also saving the loss 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 embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for manufacturing a lattice shell structure, characterized in that: The steps include: S1: The bottom plate of the core tube (1) is provided with a plurality of points (10) at intervals along the circumferential direction, a lattice 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 tube (1) and the vertical distance △H of each point (10) from the horizontal plane where the center (11) of the bottom plate is located are extracted; S2: placing each of the core barrels (1) at a corresponding plane position according to the coordinates (X, Y, Z), and adjusting them to a corresponding position height; S3: twisting the core tube (1) around the center (11) of the bottom plate according to the vertical distance △H, so that the vertical distance between each point (10) on the bottom plate of the core tube (1) and the horizontal plane where the center (11) of the bottom plate is located is △H; S4: Assembling the rods (2) between the core tubes (1) to complete the assembly of the lattice shell structure.

2. The method for manufacturing a lattice shell structure according to claim 1, characterized in that: In the step S2, the core barrel (1) is placed on an adjustable support (3), and the adjustable support (3) comprises: A telescopic rod (31) supported on the ground and having an adjustable length in the vertical direction; A placement plate (32) is connected to the telescopic rod (31) and is configured to carry the core barrel (1).

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

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

5. The method for manufacturing a lattice shell structure according to claim 2, characterized in that: A posture adjustment platform (4) is provided between the placement plate (32) and the core barrel (1), and the posture adjustment platform (4) comprises: A lower base plate (41) supported on the placement plate (32); An upper base plate (42) is spaced apart from the lower base plate (41) and is configured to carry the core barrel (1); A plurality of support components (43) are evenly spaced along the circumference of the lower base plate (41), each of the support components (43) is rotatably connected between the lower base plate (41) and the upper base plate (42), and each of the support components (43) is capable of extending and retracting along its own extension direction; The connection nodes between the plurality of support components (43) and the upper base plate (42) correspond one-to-one to the plurality of points (10).

6. The method for manufacturing a lattice shell structure according to claim 5, characterized in that: Each of the support assemblies (43) comprises two support members (431), and the two support members (431) 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 retractable along its own extension direction.

7. The method for manufacturing a lattice shell structure according to claim 6, characterized in that: The vertical spacing 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, and the elongation of each support member (431) is 8. The method for manufacturing a lattice shell structure according to claim 7, characterized in that: Each support member (431) comprises: A first rod (4311) is connected to the ball bearing, and an adjustment cavity is provided on the first rod (4311); A second rod (4312), one end of which extends into the adjustment cavity in an adjustable manner, and the other end of which is connected to the universal joint; A scale line is provided on the outer wall of the first rod (4311), and 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 scale line.

9. The method for manufacturing a lattice shell structure according to claim 5, characterized in that: A limiting member is provided on the upper bottom plate (42), a limiting groove is provided on the core barrel (1), and the limiting member can extend into the limiting groove so that the core barrel (1) is limited on the upper bottom plate (42).

10. The method for manufacturing a lattice shell structure according to any one of claims 1 to 9, characterized in that: The rod (2) is a box-shaped structure.

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