A cross-rotating circular tube steel column and its manufacturing method

Abstract

The present invention discloses a method for manufacturing a cross-turned circular tube steel column, which comprises the following steps: firstly closing the cross web; installing the upper ring plate at the upper intersection of the convex part of the cross web and the first convex part; then setting a group of inner partitions at the intersection of the first web and the second web, fixing one side first; splicing and welding the square node plates by a four-haf splicing method; welding the lower ring plate; then welding the inner partition at the intersection of the cross web at the lower part of the lower ring plate; then welding the box column; welding and fixing the other two sides of the inner partition; welding the circular tube column, installing the node plate, installing the stiffening plate, and finally welding the lower node and the box column at the lower part of the cross web. The method for manufacturing the cross-turned circular tube steel column described in the present invention not only optimizes the structure, but also optimizes the construction process, and closes the circular tube column, the cross transition section and the lower node respectively, which not only improves the processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structures, and in particular relates to a cross-rotated circular tube steel column and a manufacturing method thereof. Background Art

[0002] With the rapid development of social economy, all walks of life are constantly developing, and so is the construction industry. Steel structure buildings are favored by major venues and centers because of their short construction period, freedom from climate constraints, and their ability to meet the construction needs of various special structures.

[0003] Support nodes are necessary supporting components in steel structure buildings. However, many existing support nodes are hollow support columns, which have low support and bearing capacity, and the stability of their structures needs to be improved.

[0004] Even though some supporting components have a more complex structure, their manufacturing method is more complicated. Most of them are processed directly in sequence, which takes a lot of time and manpower, affecting their normal construction progress.

[0005] And due to the characteristics of its structure, one end of the square-to-circle is square and the other end is arc-shaped, especially the square end, where the 90° rolling angle is prone to fracturing. This part needs to be pre-processed to avoid cracking. Therefore, the processing of special-shaped node plates is difficult, and therefore the existing method of making supporting nodes needs to be improved. Summary of the invention

[0006] Purpose of the invention: In order to overcome the above shortcomings, the purpose of the present invention is to provide a cross-turn circular tube steel column, which not only optimizes the structure, but also optimizes the construction process. The circular tube column, the cross-turn section and the lower section node are respectively closed correspondingly, which not only improves the processing efficiency, but also improves the construction quality.

[0007] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides a method for manufacturing a cross-rotated circular tube steel column, and the specific manufacturing method is as follows: 1): firstly, the cross web is closed by itself, that is, the first web and the second web are cross-arranged;

[0008] 2): Install the upper ring plate on the convex part of the cross web and the upper opening of the first convex part, and weld and fix them;

[0009] 3): Then set a set of inner partitions at the intersection of the first web and the second web, and fix one edge of it first;

[0010] 4): The square-jointed circular node plate is spliced ​​and welded by using the four-haf splicing method, that is, one end of the square-jointed circular node plate with an arc shape is set on the lower surface of the upper ring plate, and then the other two sides of the inner partition are welded and fixed;

[0011] 5): The lower ring plate is welded, that is, the lower ring plate is arranged at the convex part and the intersection of the second convex part and the third convex part, and the notch is welded and fixed by full penetration pad welding;

[0012] 6): Then weld the inner partition at the intersection of the cross web at the lower part of the lower ring plate, and fix one edge of it by welding;

[0013] 7): Then weld the box column, that is, insert the lower part of the cross web into the opening of the box column, and weld the notch to fix it;

[0014] 8): Weld and fix the other two sides of the inner partition in step 6);

[0015] 9): The round tube column is welded, that is, the annular partition is set on the cross web, and then the upper part of the cross web is inserted into the opening of the round tube column, and a crossing ring plate is set on the inner side of the round tube column;

[0016] 10): Install the node plate, that is, install the node plate at the lower part of the first protrusion;

[0017] 11): Install the stiffening plate, that is, install the stiffening plate on both sides of the convex part and the first convex part;

[0018] 12): Finally, the box-type columns at the lower node and the lower part of the cross web are welded.

[0019] The installation method of the square-jointed circular node plate described in the present invention is:

[0020] The butt groove of the square-jointed circular node plate needs to be opened after cold processing;

[0021] The butt grooves at the upper and lower ends of the square-jointed circular node plate need to be opened before cold processing. The invention comprises a method for manufacturing a cross-turned circular tube steel column and a cross-turned circular tube steel column.

[0022] The cross-turn circular tube steel column of the present invention comprises: a circular tube, a cross-transition section and a lower section node, wherein the circular tube is arranged at an upper crossing of the cross-transition section, and the lower section node is arranged at the lower part of the cross-transition section.

[0023] The cross transition section of the present invention comprises a cross web, an upper ring plate, a square-circle node plate, a lower ring plate and a box column, wherein the upper ring plate is arranged on the cross web at the upper end of the square-circle node plate, the square-circle node plate is arranged between two adjacent webs in the cross web, the lower ring plate is arranged on the outer side of the cross web and placed at the lower end of the square-circle node plate, and the box column is arranged on the outer side of the cross web and placed below the lower ring plate.

[0024] The square-jointed circular node plate of the present invention has one end in an arc shape and the other end in a right-angled square shape.

[0025] The cross transition section of the present invention further comprises a group of inner baffles, which are arranged between two adjacent webs in the cross web and are placed inside the square-jointed circular node plate and the box-type column.

[0026] The cross web of the present invention comprises a first web and a second web, wherein the first web and the second web are cross-arranged;

[0027] And the first web is in a convex shape, and a convex portion is provided on the outer side thereof, said;

[0028] The second web is stepped, with a first convex portion, a second convex portion and a third convex portion provided on its outer side, the upper ring plate is provided at the upper opening of the convex portion and the first convex portion, and the lower ring plate is provided at the lower opening of the convex portion and the second convex portion.

[0029] In the present invention, the heights of the first convex portion, the second convex portion and the third convex portion decrease in sequence.

[0030] The upper ring plate of the present invention comprises an annular plate, a group of convex plates are arranged on the outer side of the annular plate, an opening is arranged on the inner side of the annular plate, and the first web plate and the second web plate are respectively inserted into the corresponding openings.

[0031] According to the present invention, a node plate is provided below the first convex portion close to the second convex portion, the node plate is arranged opposite to the convex plate of the upper ring plate, and stiffening plates are provided on both sides of the first convex portion.

[0032] The cross transition section of the present invention is provided with an annular partition at the installation position of the circular tube column, and the annular partition cooperates with the circular tube column.

[0033] The circular tube column of the present invention comprises a circular tube column body and a cross inner partition plate, wherein the cross inner partition plate is arranged inside the circular tube column body, and a group of openings are arranged at the lower part of the circular tube column body, and the upper part of the cross web plate is inserted into the openings.

[0034] The box-type column comprises a box-type column body, one end of the box-type column body is provided with an opening, and four corners of the other end are provided with arc-shaped notches.

[0035] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0036] 1. The manufacturing method of a cross-turn circular tube steel column described in the present invention not only optimizes the structure, but also optimizes the construction process. The circular tube column, the cross-turn section and the lower section node are respectively closed correspondingly, which not only improves the processing efficiency, but also improves the construction quality. While ensuring the construction quality, it solves the technical problems existing in the current construction, so that it can better meet the needs of construction.

[0037] 2. The cross-turned circular tube steel column described in the present invention forms a transfer-type cross-web section through the combination of a cross web and a square-circular node plate, which is convenient for connecting the circular tube column and the lower node, and well solves the connection problem between the circular tube column and the square column. The structure of the supporting node is optimized, which greatly improves the stability of the entire node connection, and also improves its bearing capacity, effectively improves the stability and support performance of the structure, and also improves its safety in use.

[0038] 3. The first web and the second web of the present invention adopt a unique structural design, and the entire node structure is optimized, so that it can be installed with the upper ring plate, the lower ring plate and the square-circular node plate, which greatly improves the stability of its installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the present invention;

[0040] Figure 2 It is a structural diagram of the cross transition section in the present invention;

[0041] Figure 3 It is a partial schematic diagram of the cross transition section in the present invention;

[0042] Figure 4 It is a structural diagram of the round tube column in the present invention;

[0043] Figure 5 This is the processing diagram of the square-jointed node plate in the present invention;

[0044] Figure 6 This is a schematic diagram of the notch opening at the right angle of the square node plate in the present invention;

[0045] Figure 7 This is the processing diagram of the square node plate in the present invention. DETAILED DESCRIPTION

[0046] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. Example

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] 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.

[0052] The manufacturing method of a cross-rotating circular tube steel column described in this embodiment is specifically as follows: 1): firstly, the cross web 21 is closed by itself, that is, the first web 211 and the second web 212 are cross-arranged;

[0053] 2): Install the upper ring plate 22 at the upper intersection of the convex portion 213 of the cross web 21 and the first convex portion 214, and weld and fix them;

[0054] 3): A set of inner partitions is then arranged at the intersection of the first web 211 and the second web 212, and one side thereof is first fixed;

[0055] 4): The square node plate 23 is spliced ​​and welded by using a four-haf splicing method, that is, one end of the square node plate 23 in an arc shape is arranged on the lower surface of the upper ring plate 22, and then the other two sides of the inner partition are welded and fixed;

[0056] 5): The lower ring plate 24 is welded, that is, the lower ring plate 24 is arranged at the intersection of the convex portion 213 and the second convex portion 215 and the third convex portion 216, and the notch is welded and fixed by full penetration pad welding;

[0057] 6): Then weld the inner partition at the intersection of the cross web 21 at the lower part of the lower ring plate 24, and fix one edge of it by welding;

[0058] 7): Then, the box-shaped column 25 is assembled and welded, that is, the lower part of the cross web 21 is inserted into the opening of the box-shaped column 25, and the notch is welded and fixed;

[0059] 8): Weld and fix the other two sides of the inner partition in step 6;

[0060] 9): The circular tube column 1 is assembled and welded, that is, the annular partition plate 11 is arranged on the cross web 21, and then the upper part of the cross web 21 is inserted into the opening of the circular tube column 1, and a crossing ring plate is arranged on the inner side of the circular tube column 1;

[0061] 10): Installing the node plate 217, that is, installing the node plate 217 at the lower part of the first protrusion 214;

[0062] 11): Install the stiffening plate 218, that is, install the stiffening plate 218 on both sides of the convex portion 213 and the first convex portion 214;

[0063] 12): Finally, the lower node 3 and the box column 25 at the lower part of the cross web 21 are assembled and welded.

[0064] The installation method of the square-jointed circular node plate 23 in this embodiment is as follows:

[0065] 1): The butt groove of the square-jointed circular node plate 23 itself needs to be opened after cold processing;

[0066] 2): The butt grooves at the upper and lower ends of the square-jointed circular node plate 23 need to be opened before cold processing;

[0067] 3): Expand the dimensions when lofting the square cylinder:

[0068] The upper square interface is expanded according to the mid-diameter size, and the lower round interface is expanded according to the mid-diameter size;

[0069] 4): Setting of square connection cylinder allowance:

[0070] For the upper square interface, no allowance is added, and the material is cut according to the theoretical size; for the lower round interface, a 90mm width and 500mm length allowance is added at both ends of the joint (to play the role of the lapel when pressing the arc); the material is cut in the height direction, such as Figure 5 As shown;

[0071] 5): About the processing solution of the square-cylinder interface:

[0072] Since the thickness of the square-to-circle node plate 23 reaches 60mm, the R angle is too large when processing the four corners of the transition from the circle to the square interface, so the method of cutting and notching is used for processing; Figure 6 Example 2

[0073] A cross-turn circular tubular steel column is manufactured by the manufacturing method of the cross-turn circular tubular steel column described in this embodiment.

[0074] A cross-turn circular tube steel column described in this embodiment includes a circular tube 1, a cross-transition section 2 and a lower section node 3, wherein the circular tube 1 is arranged at the upper crossing of the cross-transition section 2, and the lower section node 3 is arranged at the lower part of the cross-transition section 2.

[0075] The cross transition section 2 in this embodiment includes a cross web 21, an upper ring plate 22, a square-circle node plate 23, a lower ring plate 24 and a box column 25. The upper ring plate 22 is arranged on the cross web 21 at the upper end of the square-circle node plate 23. The square-circle node plate 23 is arranged between two adjacent webs in the cross web 21. The lower ring plate 24 is arranged on the outer side of the cross web 21 and placed at the lower end of the square-circle node plate 23. The box column 25 is arranged on the outer side of the cross web 21 and placed below the lower ring plate 24.

[0076] In this embodiment, one end of the square-jointed circular node plate 23 is in an arc shape, and the other end is in a right-angled square shape.

[0077] In this embodiment, the cross transition section 2 further includes a group of inner baffles, which are arranged between two adjacent webs in the cross web 21 and are placed inside the square-jointed circular node plate 23 and the box-type column 25 .

[0078] In this embodiment, the cross web 21 includes a first web 211 and a second web 212, wherein the first web 211 and the second web 212 are cross-arranged;

[0079] The first web 211 is in a convex shape, and a convex portion 213 is provided on the outer side thereof;

[0080] The second web 212 is stepped, and a first convex portion 214, a second convex portion 215 and a third convex portion 216 are provided on its outer side. The upper ring plate 22 is provided at the upper opening of the convex portion 213 and the first convex portion 214, and the lower ring plate 24 is provided at the lower opening of the convex portion 213 and the second convex portion 215.

[0081] In this embodiment, the heights of the first protrusion 214 , the second protrusion 215 and the third protrusion 216 decrease in sequence.

[0082] In this embodiment, the upper ring plate 22 comprises an annular plate, a group of convex plates are arranged on the outer side of the annular plate, an opening is arranged on the inner side of the annular plate, and the first web plate 211 and the second web plate 212 are respectively inserted into the corresponding openings.

[0083] In this embodiment, a node plate 217 is provided below the first protrusion 214 near the second protrusion 215 . The node plate 217 is arranged opposite to the protrusion of the upper ring plate 22 , and stiffening plates 218 are provided on both sides of the first protrusion 214 .

[0084] In this embodiment, the cross transition section 2 is located at the installation position of the circular tube column 1 and is provided with an annular partition 11 , and the annular partition 11 cooperates with the circular tube column 1 .

[0085] The circular tube column 1 in this embodiment includes a circular tube column body and a cross inner partition, wherein the cross inner partition is arranged inside the circular tube column body, and a group of openings are arranged at the lower part of the circular tube column body, and the upper part of the cross web 21 is inserted into the openings.

[0086] The box-type column 25 includes a box-type column body, one end of which is provided with an opening, and four corners of the other end of the box-type column body are provided with arc-shaped notches.

[0087] In this embodiment, the lower node 3 includes a cross inner support column, a group of second partitions and a group of outer wall panels, wherein the second partitions are arranged at the upper and lower ends of the cross inner support column, and the outer wall panels are arranged on the outer side of the cross inner support column.

[0088] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A method for manufacturing a cross-turned circular tube steel column, characterized in that: The specific manufacturing method is as follows: 1): firstly, the cross web (21) is closed by itself, that is, the first web (211) and the second web (212) are arranged crosswise; 2): Install the upper ring plate (22) at the upper opening of the convex portion (213) and the first convex portion (214) of the cross web (21), and fix them by welding; 3): A set of inner partitions is then arranged at the intersection of the first web (211) and the second web (212), and one edge thereof is first fixed; 4): The square-jointed circular node plate (23) is spliced ​​and welded by using a four-haf splicing method, that is, one end of the square-jointed circular node plate (23) in an arc shape is arranged on the lower surface of the upper ring plate (22), and then the other two sides of the inner partition are welded and fixed; 5): The lower ring plate (24) is welded, that is, the lower ring plate (24) is arranged at the intersection of the convex portion (213) and the second convex portion (215) and the third convex portion (216), and the notch is welded and fixed by full penetration backing plate welding; 6): Then, the inner partition is welded at the intersection of the cross web (21) at the lower portion of the lower ring plate (24), and one edge thereof is fixedly welded; 7): The box column (25) is then welded, that is, the lower part of the cross web (21) is inserted into the opening of the box column (25), and the notch is welded and fixed; 8): Weld and fix the other two sides of the inner partition in step 6); 9): The circular tube column (1) is assembled and welded, that is, the annular partition (11) is arranged on the cross web (21), and then the upper part of the cross web (21) is inserted into the opening of the circular tube column (1), and the annular partition (11) is arranged inside the circular tube column (1); 10): installing the node plate (217), that is, installing the node plate (217) at the lower part of the first protrusion (214); 11): installing the stiffening plate (218), that is, installing the stiffening plate (218) on both sides of the convex portion (213) and the first convex portion (214); 12): Finally, the lower node (3) and the box column (25) at the bottom of the cross web (21) are welded.

2. The method for manufacturing a cross-turned circular tubular steel column according to claim 1, characterized in that: The installation method of the square-circle node plate (23) is as follows: The butt groove of the square-jointed circular node plate (23) needs to be opened after cold processing; The butt grooves at the upper and lower ends of the square-jointed circular node plate (23) need to be opened before cold processing.

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