A special-shaped steel structure and a manufacturing method thereof

Abstract

The present invention proposes a special-shaped steel structure and a manufacturing method thereof, which fully utilizes the three-dimensional model for lofting, cutting and opening of grooves to ensure the dimensional accuracy of parts of complex special-shaped steel columns and bases, and adopts the powder spraying function of a CNC cutting machine to spray the outer contour line, the center line and the positioning lines of each corbel on the tire frame plate, which are welded and assembled in sequence. The corbel of the present invention is matched with the special-shaped steel column as a whole, which greatly improves the matching degree of on-site installation; at the same time, after the corbel is manufactured as a whole, the center positioning line is drawn and then assembled with the base, which greatly reduces the difficulty of spatial positioning of the corbel parts assembled separately; a reasonable installation and manufacturing sequence is determined, and the direction and angle of the groove are determined to effectively avoid welds in narrow spaces.

Description

Technical Field

[0001] The present application relates to the technical field of steel structures, and in particular to a special-shaped steel structure and a manufacturing method thereof. Background Art

[0002] With the improvement of people's living standards and the substantial improvement of current steel structure technology, architects' ideas are getting bolder and bolder. In order to meet the high requirements of architectural decoration, special-shaped steel structures have emerged. Special-shaped steel structures are also called spatial arbitrary steel structures. The characteristics of special-shaped steel structures are: the connection points of the steel structures are not distributed in the same plane or a straight line. The production of special-shaped steel structures has high requirements for the accuracy of assembly and welding of special-shaped steel columns and bases. The internal structure space of the base is very small and the steel plate is thick. It is difficult to assemble using conventional assembly processes, which takes a lot of time, and the accumulated errors often lead to the inability to install correctly on site. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a special-shaped steel structure and a manufacturing method thereof in view of the above-mentioned problems.

[0004] The embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a special-shaped steel structure, characterized in that it includes a special-shaped steel column and a base, the special-shaped steel column is formed by splicing steel plates of different sizes and shapes to form a special-shaped columnar structure, the base includes a base body and a corbel, the corbel is fixed to the top of the base body and is tightly connected to the special-shaped steel column.

[0006] In some optional embodiments, the base body includes an inner shell and an outer shell that are arranged inside and outside, the inner shell is formed by welding a plurality of arc-shaped plates to form an irregular annular structure, and the outer shell is formed by splicing a plurality of flat plates and bent plates to form an irregular annular structure, the inner shell and the outer shell are connected and fixed by a connecting plate, the top of the inner shell is higher than the outer wall, and the tops of the inner and outer shells are covered by decorative panels.

[0007] In some optional embodiments, the corbel is installed at the top end of the inner shell, corresponding to the special-shaped steel column, and the outer contour structure is configured with the bottom end of the special-shaped steel column.

[0008] In some optional embodiments, the interior of the inner shell is supported by arranging a transverse partition and a plurality of longitudinal partitions, and rib plates are provided on the inner wall and the longitudinal partitions of the inner shell.

[0009] In some optional implementation schemes, the special-shaped steel columns and corbels are provided with rib plates and inner partitions.

[0010] In some optional embodiments, folded edges are provided on both sides of the arc-shaped plate.

[0011] In some optional embodiments, a method for manufacturing a special-shaped steel structure is characterized by comprising the following steps:

[0012] S1) Firstly, three-dimensional modeling is performed. During modeling, all the grooves of welding places are set out. After the parts are processed, they are accurately cut by CNC. A certain arc pressure margin is reserved in the arc pressure direction of the arc plate. A sample is made according to the arc structure. After the irregular arc plate is pressed out by the sample, the margin is cut and the groove is opened;

[0013] S2) Arrange the horizontal tire frame, and use CNC programming and powder spraying to draw the positioning lines on the tire frame plate. The positioning lines include the projection lines of the inner shell, outer shell, transverse and longitudinal partitions, and corbels. Align the positioning lines, install the longitudinal partitions, support them, and check the dimensions;

[0014] S3) Align the positioning line, install the irregular annular inner shell, and install the irregular outer shell after welding and correction;

[0015] S4) Match the plates of the corbel and the special-shaped steel column one by one, fix them with the code plate, install the stiffener, weld and correct them, place the corbel and the lower flange plate of the special-shaped steel column on the horizontal tire frame, install the inner partition, use the inner partition to determine the size and angle, and then install the web plate and the upper flange plate in sequence. After welding the composite size to be correct, separate the corbel from the special-shaped steel column;

[0016] S5) Install the bracket on the base body according to the positioning coordinates. After the composite size is correct, install the stiffener to reduce welding deformation. After welding, correct and check the size;

[0017] S6) Turn over the base member, insert the diaphragm from the bottom, position and install it, and then weld it;

[0018] S7) Install the decorative panels, polish the entire structure, and complete the production of the special-shaped steel structure.

[0019] In some optional implementation schemes, the certain arc pressure margin in step S1 is 90 to 110 mm.

[0020] The beneficial effects of the present application are as follows: the present application provides a special-shaped steel structure and a manufacturing method thereof, which fully utilizes three-dimensional model lofting, cutting, and opening of bevels, thereby solving the dimensional accuracy of parts of complex special-shaped steel columns and bases; adopts three-dimensional modeling combined with CNC programming powder spraying technology to solve the problem of accurate drawing of complex outer contour lines, center lines and positioning lines of each corbel on the ground sample; adopts the overall manufacturing technology of corbels and steel columns to greatly improve the matching degree of on-site installation; at the same time, after the overall manufacturing of the corbels is completed, the center positioning line is drawn and then assembled with the base, which greatly reduces the difficulty of spatial positioning of separately assembled corbel parts; adopts the technology of increasing the processing allowance of folding edges and arc pressing parts to ensure the accuracy of pressing and forming of folding edges and arc pressing parts; adopts a reasonable installation and manufacturing sequence to determine the direction and angle of the bevel, and effectively avoids welds in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is an axonometric view of the special-shaped steel structure of an embodiment of the present application;

[0023] Figure 2 A bottom view of the special-shaped steel structure of an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a curved plate according to an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the layout of the tire frame plate positioning line according to an embodiment of the present application;

[0026] Figure 5 A schematic diagram of a longitudinal partition according to an embodiment of the present application;

[0027] Figure 6 Schematic diagram of the inner shell of an embodiment of the present application.

[0028] Figure 7 This is a schematic diagram of the installation of the housing of an embodiment of the present application.

[0029] Figure 8 This is a schematic diagram of the overall production of the special-shaped steel column and the corbel according to an embodiment of the present application.

[0030] Fig. 9 It is a schematic diagram of a base according to an embodiment of the present application.

[0031] Fig.10 This is a schematic diagram of the installation of the diaphragm according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, 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.

[0039] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0040] like Figure 1-Figure 2 As shown, the present invention provides a special-shaped steel structure, including a special-shaped steel column 1 and a base 2. The special-shaped steel column is formed by splicing steel plates of different sizes and shapes to form a special-shaped columnar structure. The base includes a base body 3 and a corbel 4. The corbel is fixed to the top of the base body and is tightly connected to the special-shaped steel column.

[0041] The base body includes an inner shell 5 and an outer shell 6 which are arranged inside and outside. The inner shell is welded by multiple arc plates 7 to form an irregular ring structure. Folding edges 8 are provided on both sides of the arc plates. The outer shell is spliced ​​by multiple flat plates and bent plates to form an irregular ring structure. The inner shell and the outer shell are connected and fixed by a connecting plate 9. The top of the inner shell is higher than the outer wall. The tops of the inner and outer shells are sealed by setting a decorative plate 10.

[0042] The corbel is arranged at the top end of the inner shell and is arranged corresponding to the special-shaped steel column, and the outer contour structure is configured with the bottom end of the special-shaped steel column.

[0043] like Figure 5-Figure 7 As shown, the interior of the inner shell is supported by arranging a transverse partition 11 and a plurality of longitudinal partitions 12, and rib plates 13 are provided on the inner wall and the longitudinal partitions of the inner shell.

[0044] like Figure 8 , Fig.10 As shown, rib plates and inner partition plates 14 are provided inside the special-shaped steel columns and the corbels.

[0045] The method for manufacturing the above-mentioned special-shaped steel structure comprises the following steps:

[0046] S1) Firstly, three-dimensional modeling is performed. During modeling, all the grooves of welding places are laid out. After the parts are processed, they are accurately cut by CNC. A certain arc pressure margin is reserved in the arc pressure direction of the arc plate. The arc template 15 is made according to the arc structure. After the arc template is used to press out the irregular arc plate, the margin is cut and the groove is opened (see Figure 3 );

[0047] S2) Arrange the horizontal tire frame, and the tire frame plate 16 is powder-painted with positioning lines after numerical control programming. The positioning lines include the projection lines of the inner shell, outer shell, transverse and longitudinal partitions, and the corbels (see Figure 4 ), align the positioning line, install the longitudinal partition, support it, and check the size;

[0048] S3) Align the positioning line, install the irregular annular inner shell, and install the irregular outer shell after welding and correction;

[0049] S4) Match the plates of the corbel and the special-shaped steel column one by one, fix them with the code plate, install the stiffener, weld and correct them, place the corbel and the lower flange plate of the special-shaped steel column on the horizontal tire frame, install the inner partition, use the inner partition to determine the size and angle, and then install the web plate and the upper flange plate in sequence. After welding the composite size to be correct, separate the corbel from the special-shaped steel column;

[0050] S5) Install the bracket on the base body according to the positioning coordinates. After the composite size is correct, install the stiffener to reduce welding deformation. After welding, correct and check the size (see Fig. 9 );

[0051] S6) Turn over the base member, insert the diaphragm from the bottom, position and install it, and then weld it;

[0052] S7) Install the decorative panels, polish the entire structure, and complete the production of the special-shaped steel structure.

[0053] In some optional implementation schemes, the certain arc-pressing margin in step S1 is 90-110 mm, preferably 100 mm. The technology of increasing the processing margin of folding and arc-pressing parts by 100 mm is adopted to ensure the precision of the press forming of folding and arc-pressing parts.

[0054] In some optional implementation schemes, the special-shaped steel column has six plate members, including a lower flange plate, two left and right web plates, and an upper flange plate composed of three steel plates.

Claims

1. A method for manufacturing a special-shaped steel structure, wherein the special-shaped steel structure comprises a special-shaped steel column and a base, wherein the special-shaped steel column is formed by splicing steel plates of different sizes and shapes to form a special-shaped columnar structure, the base comprises a base body and a corbel, the corbel is fixed to the top of the base body and is connected and fastened to the special-shaped steel column, the base body comprises an inner shell and an outer shell arranged inside and outside, the inner shell is welded and surrounded by a plurality of arc plates to form an irregular annular structure, the outer shell is spliced ​​by a plurality of flat plates and bent plates to form an irregular annular structure, the inner shell and the outer shell are connected and fixed by a connecting plate, the top of the inner shell is higher than the outer shell, the tops of the inner and outer shells are covered by arranging a decorative plate, the corbel is arranged at the top of the inner shell and is arranged corresponding to the special-shaped steel column, the outer contour structure is configured with the bottom end of the special-shaped steel column, the interior of the inner shell is supported by arranging a transverse partition and a plurality of longitudinal partitions, the inner wall and the longitudinal partition of the inner shell are provided with rib plates, the special-shaped steel column and the corbel are provided with rib plates and inner partitions, and folding edges are provided on both sides of the arc plate; It is characterized in that The steps include: S1) First, 3D modeling is performed. During modeling, all welding grooves are set out. After the parts are processed Use CNC to accurately cut materials, reserve a certain amount of arc pressure margin in the arc pressure direction of the arc plate, and make samples according to the arc structure. Plate, use the template to press out irregular curved plates, then cut the excess and make a groove; S2) Arrange the horizontal tire frame, and the tire frame plate is powder-sprayed with CNC programming to draw the positioning line. The positioning line includes The projection lines of the inner shell, outer shell, transverse and longitudinal partitions, and corbels are aligned with the positioning lines, and the longitudinal partitions are installed. Support, check the size; S3) Align the positioning line, install the irregular annular inner shell, and install the irregular outer shell after welding and correction. shell; S4) Match the brackets with the plates of the special-shaped steel columns one by one, fix them with the code plates, install the rib plates, and weld them. Connect and correct, place the bracket and the lower flange plate of the special-shaped steel column on the horizontal tire frame, install the inner partition, and use the inner partition The plate is sized and angled, and then the web plate and upper flange plate are installed in sequence. After the composite size is correct, the bracket is installed. Separated from special-shaped steel columns; S5) Install the bracket on the base body according to the positioning coordinates. After the composite size is correct, install the stiffener. To reduce welding deformation, make corrections after welding and check the dimensions; S6) Turn over the base member, insert the diaphragm from the bottom, position and install it, and then weld it; S7) Install the decorative panels, polish the entire structure, and complete the production of the special-shaped steel structure.

2. The method for manufacturing a special-shaped steel structure according to claim 1, characterized in that: The certain arc pressure margin in step S1 is 90 to 110 m.

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