A multi-curvature tree-shaped column integrated forming construction method

Abstract

The present application relates to a kind of multi-curvature tree column integrated forming construction method, and its steps are as follows: S1: curvature analysis: by analyzing tree column curvature, the area needing to adopt double curvature plate is evaluated, and material characteristics and processing technology are combined to control local curvature less than preset curvature;S2: stress analysis: multi-curvature wallboard structure is set on tree bionics steel truss using overall suspension type;Load transfer route is set as: load→multi-curvature wallboard structure→auxiliary support→tree bionics steel truss;S3: multi-curvature wallboard structure is made based on special-shaped curtain wall skin positioning matching using BIM technology;S4: construction steel pipe concrete column, hoist tree bionics steel truss, auxiliary support and multi-curvature wallboard structure, and reserve operating space between tree bionics steel truss and multi-curvature wallboard structure;S5: worker completes stainless steel weld full welding, orthopaedics, polishing subsequent work in operating space.

Description

Technical Field

[0001] This invention relates to the field of building construction, and particularly to a method for the integrated molding and construction of multi-curvature tree-shaped columns. Background Technology

[0002] For example, Chinese invention patent application publication number CN 113789853 A discloses a support system for installing tree-shaped column structures. This system includes a main truss, a sliding device, and a fixing device. The main truss is erected on two tree-shaped columns. The sliding device is located on each tree-shaped column, and the main truss abuts against the sliding device. The fixing device is located on one side of the main truss, with one end fixed to the main truss and the other end fixed to a branch of the tree-shaped column. The sliding device is placed on the tree-shaped column, and then the main truss is hoisted and placed on two adjacent tree-shaped columns to slide and adjust its position. Finally, the fixing device secures the main truss. However, the tree-shaped column surface lacks a skin structure, which is not conducive to protecting the main truss. Summary of the Invention

[0003] The purpose of this invention is to provide a construction method for integrated molding of multi-curvature tree-shaped columns, which is beneficial for the protective layer of the main truss and makes the tree-shaped column structure more aesthetically pleasing.

[0004] To achieve the above objectives, a multi-curvature tree-shaped column integrated molding construction method was adopted, the steps of which are as follows:

[0005] S1: Curvature Analysis: By analyzing the curvature of the tree-shaped column, the area where a hyperbolic plate is needed is evaluated, and the local curvature is controlled to be less than the preset curvature by combining material properties and processing technology;

[0006] S2: Stress Analysis: The multi-curvature wall panel structure is installed as a whole suspended on the tree-shaped bionic steel truss; the load transfer route is set as: load → multi-curvature wall panel structure → secondary support → tree-shaped bionic steel truss.

[0007] S3: The multi-curvature wall panel structure is fabricated using BIM technology based on the positioning and matching of irregular curtain wall skin;

[0008] S4: Construction of steel pipe concrete columns, hoisting of tree-shaped bionic steel trusses, secondary supports and multi-curvature wall panel structures, with reserved operating space between the tree-shaped bionic steel trusses and the multi-curvature wall panel structures;

[0009] S5: Workers complete the subsequent work of full welding, straightening, and grinding of stainless steel welds within the operating space.

[0010] This approach allows for the design of multi-curvature shapes, taking into account material properties and processing technology to avoid situations where excessive local curvature makes processing or installation impossible.

[0011] The multi-curvature wall panel structure can be hung on the tree-shaped bionic steel truss through the secondary support, which can form the outer skin of the tree-shaped bionic steel truss.

[0012] As a further improvement of the present invention, the multi-curvature wall panel structure includes:

[0013] Multi-curvature metal skins are classified into flat panels, single-curvature panels, and double-curvature panels.

[0014] A profiled steel frame is arranged in a grid pattern on the back of a multi-curvature metal skin;

[0015] The nail assembly is disposed between the profiled steel frame and the multi-curvature metal skin.

[0016] With this structure, the steel frame forms a grid, which is beneficial for supporting multi-curvature metal skins and facilitates the hanging of multi-curvature metal skins.

[0017] As a further improvement of the present invention, the tree-shaped biomimetic steel truss includes:

[0018] Side arch trusses are located on both sides;

[0019] The central arched chord has multiple layers distributed vertically and is located between the two side arch trusses, connecting the two side arch trusses into a whole;

[0020] The slanted truss is a cross-connecting side arch truss and the central arched chord.

[0021] This structure facilitates the stable support of the tree-shaped bionic structure steel truss. The good self-stability of the arch structure helps to stabilize the tree-shaped bionic structure.

[0022] As a further improvement of the present invention, the tree-shaped biomimetic steel truss structure further includes:

[0023] The arc-shaped grid truss is located in the central area, dividing it into multiple shaped grids, and intersecting with the side arch trusses, the central arched chord, and the diagonal trusses.

[0024] This structure facilitates the distribution of decorative grids within the tree-like structure, thereby reducing wind resistance and further enhancing the visual quality, resulting in a more aesthetically pleasing building design.

[0025] As a further improvement of the present invention, the secondary support is fixed to the tree-shaped biomimetic steel truss by means of a conversion keel.

[0026] With this structure, the conversion keel is fixed on the tree-shaped biomimetic steel truss, providing a unified fixing point for the secondary supports in the same row.

[0027] As a further improvement of the present invention, the secondary support includes:

[0028] The base that fits onto the conversion keel;

[0029] A protruding plate is provided on the base, and the protruding plate is provided with an arc-shaped hole and a round hole, wherein the round hole is located at the center of the arc-shaped hole;

[0030] The connecting plate has multiple elongated holes spaced apart. When the end of the connecting plate is spliced ​​with the convex plate, bolt and nut assemblies are set at the mating positions of the arc-shaped holes and the elongated holes, as well as the mating positions of the round holes and the elongated holes, for tightening.

[0031] With this structure, after the arc-shaped hole and the oblong hole are connected, there is room for movement, and the secondary support adopts a flexible connection, which is conducive to the release of temperature stress.

[0032] As a further improvement of the present invention, the profiled steel frame includes:

[0033] Intersecting horizontal and vertical slats;

[0034] And mounting holes provided on the vertical strips, wherein the mounting holes are spliced ​​with the elongated holes at the ends of the connecting plates by bolt and nut assemblies.

[0035] With this structure, the steel frame forms a grid, which is beneficial for supporting multi-curvature metal skins and facilitates the hanging of multi-curvature metal skins.

[0036] As a further improvement of the present invention, the seed nail assembly includes:

[0037] Seed pins are installed on the back of a multi-curvature metal skin;

[0038] An L-shaped steel plate is attached to the back of the multi-curvature metal skin and the side of the vertical strip by a nail, and is fastened to the splicing position of the vertical strip and the multi-curvature metal skin by a bolt and nut assembly. The splicing position of the L-shaped steel plate is provided with an elongated hole.

[0039] With this structure, an elongated hole is opened at the connection between the L-shaped steel plate and the vertical stainless steel strip of the profile steel frame in the nail assembly, which can realize the release of temperature stress.

[0040] As a further improvement of the present invention, the multi-curvature metal skin is provided with holes corresponding to the shape grid.

[0041] As a further improvement to the multi-curvature tree-shaped column integrated molding device, the multi-curvature metal skin is made of 3.0mm thick stainless steel sheet metal, and the profile steel frame is composed of steel plate laser cutting and welding. A gap is reserved between the metal skin and the tree-shaped biomimetic structure steel truss.

[0042] This invention is beneficial for the protective layer of the main truss of the construction and makes the tree-shaped column structure more aesthetically pleasing. Attached Figure Description

[0043] Figure 1 Axonometric drawing of a truss tree-shaped column.

[0044] Figure 2 This is a schematic diagram of the bark of a tree-shaped column.

[0045] Figure 3 This is a schematic diagram of the suspension structure.

[0046] Figure 4 This is a schematic diagram of the nail structure.

[0047] Figure 5 This is a schematic diagram of a profiled steel frame structure.

[0048] Figure 6 This is a schematic diagram of the connection structure between the secondary support and the profiled steel frame.

[0049] Figure 7 This is a schematic diagram of the secondary support structure.

[0050] Figure 8 This is a schematic diagram of the main steel structure of a tree-shaped biomimetic steel truss.

[0051] Figure 9 This is a schematic diagram of the nail structure connection.

[0052] Figure 10 This is a schematic diagram of the installation of the profiled steel frame.

[0053] Reference numerals: 1. Steel-concrete composite column; 2. Tree-shaped biomimetic steel truss; 21. Side arch truss; 22. Central arched chord; 23. Inclined truss; 24. Arc-shaped grid truss; 25. Shaped grid; 3. Sub-support; 31. Base; 32. Convex plate; 33. Arc-shaped hole; 34. Circular hole; 35. Connecting plate; 36. Oblong hole; 4. Multi-curvature wall panel structure; 41. Multi-curvature metal skin; 42. Profiled steel frame; 421. Horizontal slats; 422. Vertical slats; 423. Hanging hole; 43. Nail assembly; 431. Nail; 432. L-shaped steel plate; 5. Transition keel. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] Example 1

[0057] like Figures 1-10 As shown, a method for integrated molding construction of multi-curvature tree-shaped columns includes the following steps:

[0058] S1: Curvature Analysis: By analyzing the curvature of the tree-shaped column, the area where a hyperbolic plate is needed is evaluated, and the local curvature is controlled to be less than the preset curvature by combining material properties and processing technology;

[0059] S2: Stress Analysis: The multi-curvature wall panel structure 4 is installed as a whole on the tree-shaped bionic steel truss structure 2 in a suspended manner; the load transfer route is set as: load → multi-curvature wall panel structure 4 → secondary support 3 → tree-shaped bionic steel truss structure 2;

[0060] S3: Multi-curvature wall panel structure 4 is manufactured using BIM technology based on the positioning and matching of irregular curtain wall skin;

[0061] S4: Construct steel pipe concrete column 1, hoist tree-shaped bionic steel truss 2, secondary support 3 and multi-curvature wall panel structure 4, and reserve operating space between tree-shaped bionic steel truss 2 and multi-curvature wall panel structure 4;

[0062] S5: Workers complete the subsequent work of full welding, straightening, and grinding of stainless steel welds within the operating space.

[0063] This approach allows for the design of multi-curvature shapes, taking into account material properties and processing technology to avoid situations where excessive local curvature makes processing or installation impossible.

[0064] The multi-curvature wall panel structure can be hung on the tree-shaped bionic steel truss through the secondary support, which can form the outer skin of the tree-shaped bionic steel truss.

[0065] In this embodiment, the multi-curvature wall panel structure 4 includes:

[0066] Multi-curvature metal skin 41, which is divided into flat plate, single-curvature plate and double-curvature plate;

[0067] A profiled steel frame 42 is arranged in a grid pattern on the back of a multi-curvature metal skin 41;

[0068] The nail assembly 43 is disposed between the profiled steel frame 42 and the multi-curvature metal skin 41.

[0069] With this structure, the steel frame forms a grid, which is beneficial for supporting multi-curvature metal skins and facilitates the hanging of multi-curvature metal skins.

[0070] In this embodiment, the tree-shaped biomimetic steel truss 2 includes:

[0071] Side arch trusses 21 are located on both sides;

[0072] The central arched chord 22 is distributed in multiple layers and is located between the two side arch trusses 21, connecting the two side arch trusses 21 into a whole.

[0073] The diagonal truss 23 crosses and connects the side arch truss 21 and the central arched chord 22.

[0074] This structure facilitates the stable support of the tree-shaped bionic structure steel truss. The good self-stability of the arch structure helps to stabilize the tree-shaped bionic structure.

[0075] In this embodiment, the tree-shaped biomimetic steel truss 2 further includes:

[0076] The arc-shaped grid truss 24 is located in the central area, dividing it into multiple shaped grids 25, and intersecting with the side arch truss 21, the central arched chord 22, and the diagonal truss 23.

[0077] This structure facilitates the distribution of decorative grids within the tree-like structure, thereby reducing wind resistance and further enhancing the visual quality, resulting in a more aesthetically pleasing building design.

[0078] In this embodiment, the secondary support 3 is fixed to the tree-shaped biomimetic steel truss 2 by the conversion keel 5.

[0079] With this structure, the conversion keel is fixed on the tree-shaped biomimetic steel truss, providing a unified fixing point for the secondary supports in the same row.

[0080] In this embodiment, the secondary support 3 includes:

[0081] Base 31 fitted onto the conversion keel 5;

[0082] A protruding plate 32 is provided on the base 31. The protruding plate is provided with an arc-shaped hole 33 and a round hole 34. The round hole 34 is located at the center of the arc-shaped hole 33.

[0083] The connecting plate 35 has multiple elongated holes 36 spaced apart. When the end of the connecting plate 35 is spliced ​​with the protruding plate 32, bolt and nut assemblies are set at the mating positions of the arc-shaped hole 33 and the elongated hole 36, as well as the mating positions of the round hole 34 and the elongated hole 36, for tightening.

[0084] With this structure, after the arc-shaped hole and the oblong hole are connected, there is room for movement, and the secondary support adopts a flexible connection, which is conducive to the release of temperature stress.

[0085] In this embodiment, the profiled steel frame 42 includes:

[0086] The horizontal slats 421 and the vertical slats 422 are arranged in a cross pattern;

[0087] And a hanging hole 423 is provided on the vertical strip 422, wherein the hanging hole 423 is spliced ​​with the elongated hole at the end of the connecting plate 35 by a bolt and nut assembly.

[0088] With this structure, the steel frame forms a grid, which is beneficial for supporting multi-curvature metal skins and facilitates the hanging of multi-curvature metal skins.

[0089] In this embodiment, the seed nail assembly 43 includes:

[0090] Seed nail 431 is set on the back of the multi-curvature metal skin 41;

[0091] L-shaped steel plate 432 passes through nail 431 and is closely attached to the back of multi-curvature metal skin 41 and the side of vertical strip 422. The L-shaped steel plate 432 is fastened to the splicing position of vertical strip 422 and multi-curvature metal skin 41 by bolt and nut assembly. The splicing position on the L-shaped steel plate 432 is provided with an elongated hole.

[0092] With this structure, an elongated hole is opened at the connection between the L-shaped steel plate and the vertical stainless steel strip of the profile steel frame in the nail assembly, which can realize the release of temperature stress.

[0093] In this embodiment, the multi-curvature metal skin 41 has holes corresponding to the shape grid 25.

[0094] In this embodiment, the multi-curvature metal skin is made of 3.0mm thick stainless steel sheet metal, and the profile steel frame is composed of laser-cut and welded steel plates. A gap is reserved between the metal skin and the tree-shaped biomimetic steel truss.

[0095] Example 2

[0096] Tree Column Analysis - One-Piece Molding

[0097] 1) Curvature analysis: Based on modeling analysis, the darker the color, the greater the curvature. By analyzing the curvature of the tree column, we can assess the areas where hyperbolic plates are needed. We can also combine material properties and processing technology to avoid situations where excessive local curvature makes processing or installation impossible.

[0098] 2) Stress Analysis: The tree-shaped column structure consists of a main structure (concrete-filled steel tubular column 1 + tree-shaped biomimetic steel truss 2), secondary supports 3, and multi-curvature wall panel structure 4. Considering factors such as temperature compensation, the overall structural load-bearing form is a suspended type, meaning that the load acting on the stainless steel multi-curvature wall panel structure 4 is transferred to the main structure through the secondary supports 3. No additional fixed connection is added between the stainless steel multi-curvature wall panel structure 4 and the foundation. The load transfer path in the structure is: (load) → wall panel → secondary supports → main structure.

[0099] 3) Panel structure

[0100] The multi-curvature wall panel structure 4 consists of a multi-curvature metal skin 41, a profiled steel frame 42, and connecting components. The skin is made of 3.0mm thick stainless steel sheet metal, the profiled steel frame 42 is assembled by laser cutting and welding of steel plates, and the connecting structure is a nail assembly 43. The main forms of the multi-curvature wall panel structure 4 are as follows: Figure 5 As shown,

[0101] Based on BIM technology, the complex and irregularly shaped curtain wall skin is precisely positioned. The steel frame 42 is assembled using Q235B panel strips with a specification of 8mm×80mm, and the panel strips are manufactured with a longitudinal and transverse projection of 500×500mm.

[0102] 4) Temperature compensation design

[0103] Temperature compensation design theory: The stainless steel sheet used in the project has the lowest coefficient of thermal expansion among copper, aluminum, and iron. The coefficient of thermal expansion of stainless steel is 1.3 x 10⁻⁵ / ℃. Considering that the internal steel structure and the stainless steel wall panels have similar coefficients of thermal expansion, both expand and contract simultaneously with temperature changes, resulting in a relative displacement close to zero. This relative displacement originates from the temperature difference between the inside and outside of the wall panels and is relatively controllable.

[0104] The elongated hole and flexible connection allow for the release of temperature stress.

[0105] In the nail assembly 43, an elongated hole is opened at the connection end between the L-shaped steel plate 432 and the vertical strip of stainless steel material to release temperature stress.

[0106] Elongated holes are made at the connection points between the profiled steel frame 42 and the nail 431, and the L-shaped steel plate 432, to release temperature stress.

[0107] 5) Construction node design

[0108] Seamless metal curtain walls require a net distance of 750mm between the main structure outline and the metal skin, providing workers with the operating space to perform full welding, shaping, and grinding of stainless steel seams inside the skin.

[0109] The wall panel consists of a multi-curvature metal skin 41, a profiled steel frame 42, and a connecting structure (between the multi-curvature metal skin and the profiled steel frame 42). The multi-curvature metal skin is made of 3.0mm thick stainless steel sheet metal, the profiled steel frame 42 is composed of laser-cut and welded steel plates, and the connecting structure is a nail assembly 43.

[0110] This embodiment is beneficial for the protection of the main truss structure and makes the tree-shaped column structure more aesthetically pleasing.

[0111] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, achieving the same performance or purpose, should be considered within the scope of protection of the present invention.

Claims

1. A method for integrated molding construction of multi-curvature tree-shaped columns, comprising the following steps: S1: Curvature Analysis: By analyzing the curvature of the tree-shaped column, the area where a hyperbolic plate is needed is evaluated, and the local curvature is controlled to be less than the preset curvature by combining material properties and processing technology; S2: Stress analysis: The multi-curvature wall panel structure (4) is installed as a whole on the tree-shaped bionic steel truss (2); the load transfer route is set as: load → multi-curvature wall panel structure (4) → secondary support (3) → tree-shaped bionic steel truss (2). S3: Multi-curvature wall panel structure (4) is fabricated using BIM technology based on the positioning and matching of irregular curtain wall skin; S4: Construct steel pipe concrete column (1), hoist tree-shaped bionic steel truss (2), secondary support (3) and multi-curvature wall panel structure (4), and reserve operating space between tree-shaped bionic steel truss (2) and multi-curvature wall panel structure (4); S5: Workers complete the subsequent work of full welding, straightening, and grinding of stainless steel welds within the operating space; The multi-curvature wall panel structure (4) includes: Multi-curvature metal skin (41) is divided into flat panels, single-curvature panels and double-curvature panels; A profiled steel frame (42) is arranged in a grid pattern on the back of a multi-curvature metal skin (41); The nail assembly (43) is disposed between the profiled steel frame (42) and the multi-curvature metal skin (41).

2. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 1, characterized in that... The tree-shaped biomimetic steel truss (2) includes: Side arch trusses (21) are set on both sides; The central arched chord (22) is distributed in multiple layers and is located between the two side arch trusses (21), connecting the two side arch trusses (21) into a whole; The diagonal truss (23) crosses the side arch truss (21) and the central arched chord (22).

3. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 2, characterized in that... The tree-shaped biomimetic steel truss (2) also includes: The arc-shaped grid truss (24) is set in the central area, dividing it into multiple shaped grids (25), and intersecting with the side arch truss (21), the central arched chord (22), and the diagonal truss (23).

4. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 3, characterized in that... The sub-support (3) is fixed to the tree-shaped biomimetic steel truss (2) by the conversion keel (5).

5. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 4, characterized in that... The sub-support (3) includes: The base (31) is fitted onto the conversion keel (5); A protruding plate (32) is provided on the base (31), and an arc-shaped hole (33) and a round hole (34) are provided on the protruding plate. The round hole (34) is located at the center of the arc-shaped hole (33). A connecting plate (35) is provided with multiple elongated holes (36) spaced apart. When the end of the connecting plate (35) is spliced ​​with the convex plate (32), bolt and nut assemblies are provided at the docking positions of the arc-shaped hole (33) and the elongated hole (36), as well as the docking positions of the round hole (34) and the elongated hole (36) for tightening.

6. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 5, characterized in that... The profiled steel frame (42) includes: The horizontal slats (421) and vertical slats (422) are arranged in a cross pattern. And a mounting hole (423) is provided on the vertical strip (422), wherein the mounting hole (423) is spliced ​​with the elongated hole at the end of the connecting plate (35) by a bolt and nut assembly.

7. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 6, characterized in that... The seed nail assembly (43) includes: Seed nail (431) is set on the back of the multi-curvature metal skin (41). L-shaped steel plate (432) passes through nail (431) and is closely attached to the back of multi-curvature metal skin (41) and the side of vertical strip (422). The L-shaped steel plate (432) is fastened to the splicing position of vertical strip (422) and multi-curvature metal skin (41) by bolt and nut assembly. The splicing position on the L-shaped steel plate (432) is provided with an elongated hole.

8. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 7, characterized in that... The multi-curvature metal skin (41) has holes corresponding to the shape grid (25).

9. The integrated molding construction method for multi-curvature tree-shaped columns according to claim 8, characterized in that... The multi-curvature metal skin (41) is made of 3.0mm thick stainless steel sheet metal, and the profile steel frame (42) is composed of steel plate laser cutting and welding. A gap is reserved between the multi-curvature metal skin (41) and the tree-shaped bionic steel truss (2).

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