Bone column with variable cross-section conversion nodes

Abstract

The utility model discloses a bone column of a variable cross-section transfer node, which relates to the technical field of building structures, and comprises a lower cross bone column (1), an upper T-shaped bone column (2) and a partition plate (3) arranged between the cross bone column (1) and the T-shaped bone column (2), the cross bone column (1) and the T-shaped bone column (2) are staggered at flange positions, and the partition plate (3) is arranged between the cross bone column (1) and the T-shaped bone column (2). Vertical stiffening plates (4) are arranged at the staggered positions of the flanges; the cross-shaped bone column (1), the T-shaped bone column (2) and the vertical stiffening plate (4) are vertically connected with the partition plate (3); a plurality of exhaust holes are formed in the positions, away from the bone columns, of the partition plate (3). The bone columns of the variable cross-section conversion joint ensure continuous vertical force transmission, and are convenient to process and construct.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a bone column with a variable cross-section conversion node. Background Art

[0002] In multi-story structures, steel-reinforced concrete columns are often used, that is, adding steel frames to concrete columns to effectively enhance the bearing capacity of the columns and achieve the effect of light weight and high strength. Cross-bone columns are widely used because of their open structure, convenient processing and construction, and good bidirectional performance. In order to meet the spatial layout of the building, the cross-section of the steel-reinforced concrete column often needs to be reduced in the upper part. When the cross-section of the column is reduced on one side, the internal steel frame will change from a cross shape to a T-shape. In this case, the flanges and webs of the upper and lower steel-frame columns are staggered. How to ensure reliable force transmission and convenient processing and construction is an urgent problem to be solved in the design of conversion nodes. Utility Model Content

[0003] The utility model aims to provide a bone column with a variable cross-section conversion node, which ensures continuous vertical force transmission and is convenient for processing and construction.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A bone column of a variable cross-section transition node comprises a cross bone column at a lower portion, a T-bone column at an upper portion, and a partition plate arranged between the cross bone column and the T-bone column, wherein the cross bone column and the T-bone column are staggered at flange positions, and vertical stiffening plates are arranged at the staggered flange positions; the cross bone column, the T-bone column, and the vertical stiffening plates are all vertically connected to the partition plate; and the partition plate is provided with a plurality of exhaust holes at positions avoiding the bone columns.

[0006] Optionally, the partition is an overhanging plate relative to the cross bone column and the T-bone column, and the unilateral overhanging distance of the partition beyond the bone column body is greater than or equal to 25 mm.

[0007] Optionally, the partition thickness is greater than or equal to the maximum value of the cross-bone column and T-bone column flange thickness.

[0008] Optionally, the partition is provided with the exhaust hole in each divided area of ​​the cross-bone column and the T-bone column.

[0009] Optionally, the vertical stiffening plate includes a flange widening reinforcement plate, and when the flanges of the cross bone column and the T-bone column are in the same plane and staggered, the flange widening reinforcement plate is connected to the side of the cross bone column and / or the T-bone column flange and the partition.

[0010] Optionally, the vertical stiffening plate includes a flange extension plate. When the flanges of the cross-bone column and the T-bone column are not in the same plane, the flange extension plate is arranged under the partition. The flange extension plate is connected to the flange, web and partition of the cross-bone column, and the flange extension plate is located directly below the corresponding position of the T-bone column flange.

[0011] Optionally, the width of the flange widening reinforcement plate is the offset distance between the upper and lower bone column flanges; the width of the flange extension plate is equal to the corresponding width of the T-shaped bone column flange.

[0012] Optionally, the thickness of the flange widening reinforcement plate is consistent with the thickness of the bone column flange to be reinforced.

[0013] Optionally, the thickness of the flange extension plate is consistent with the thickness of the T-bone column flange.

[0014] Optionally, the vertical stiffening plate is divided into a straight section and a narrowed section in the axial direction of the bone column, the straight section is close to the partition, the length of the straight section is not less than 20-50 mm, the width of the narrowed section narrows from the partition to both sides, and the slope is not greater than 1:2.5.

[0015] The utility model has the beneficial effect that the bone column of the variable cross-section conversion node includes a cross bone column, a T-bone column and a partition, the cross bone column is located at the bottom, including four flanges and a cross web connected to the four flanges. The T-bone column is located at the top, including three flanges and a T-web connected to the three flanges, and the structure is simple. The partition is arranged between the cross bone column and the T-bone column, and the upper end of the cross bone column and the lower end of the T-bone column are connected by the partition, so that the cross bone column is converted into a T-bone column.

[0016] Since the flanges of the cross-bone column and the T-bone column are staggered, in order to ensure the continuity of force transmission between the upper end of the cross-bone column and the T-bone column, vertical stiffening plates are set at the staggered positions of the flanges of the cross-bone column and the T-bone column. The cross-bone column, the T-bone column, and the vertical stiffening plates are all connected to the partition. The cross-bone column, the T-bone column, and the vertical stiffening plates are all kept vertical to the partition. The vertical stiffening plates fill the staggered flanges of the cross-bone column and the T-bone column or vertically support the flanges to prevent the flanges from being suspended in the air, so as to achieve continuous force transmission at the cross-bone column and the T-bone column variable section conversion node. At the same time, the partition is provided with a number of exhaust holes at the position avoiding the column to ensure the density of the poured concrete. The node area does not involve a closed cavity, and the on-site pouring of concrete is relatively simple.

[0017] The bone column with a variable cross-section conversion node provided by the utility model transforms a cross bone column into a T-shaped bone column through a partition plate, and a vertical stiffening plate is arranged to ensure continuous and reliable force transmission. The structure is simple, the cost is low, and it is convenient for factory processing and on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a bone column with a variable cross-section conversion node provided in a specific implementation manner of the utility model;

[0020] Figure 2 A schematic diagram of the structure of a bone column with a variable cross-section conversion node provided by the utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of an upper bone column applicable to the utility model;

[0022] Figure 4 It is a cross-sectional schematic diagram of the lower bone column to which the utility model is applicable;

[0023] Figure 5 This is a top view of the bone column of the variable cross-section conversion node provided by the utility model.

[0024] Reference numerals:

[0025] Cross column 1, T-shaped column 2, partition 3, vertical stiffening plate 4, flange widening reinforcement plate 41, flange extension plate 42. DETAILED DESCRIPTION

[0026] The core of the utility model is to provide a bone column with a variable cross-section conversion node, which ensures continuous vertical force transmission and is convenient to process and construct.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Please refer to Figures 1 to 5 , Figure 1 A schematic structural diagram of a bone column with a variable cross-section conversion node provided in a specific implementation manner of the utility model; Figure 2 A schematic diagram of the structure of a bone column with a variable cross-section conversion node provided by the utility model; Figure 3 It is a cross-sectional schematic diagram of an upper bone column applicable to the utility model; Figure 4It is a cross-sectional schematic diagram of the lower bone column to which the utility model is applicable; Figure 5 This is a top view of the bone column of the variable cross-section conversion node provided by the utility model.

[0029] In a specific embodiment, the bone column of the variable cross-section transition node provided by the utility model includes a lower cross bone column 1, an upper T-bone column 2 and a partition 3 arranged between the cross bone column 1 and the T-bone column 2, the cross bone column 1 and the T-bone column 2 are staggered at the flange position, and vertical stiffening plates 4 are arranged at the staggered flange position; the cross bone column 1, the T-bone column 2, and the vertical stiffening plate 4 are all vertically connected to the partition 3; the partition 3 is provided with a plurality of exhaust holes at the position avoiding the bone column.

[0030] In the above structure, the bone column of the variable cross-section conversion node includes a cross bone column 1, a T-bone column 2 and a partition 3. Preferably, the cross bone column 1, the T-bone column 2 and the partition 3 are made of high-strength metal such as steel. The cross bone column 1 is located at the bottom, including four flanges and a cross web connected to the four flanges. The T-bone column 2 is located at the top, including three flanges and a T-web connected to the three flanges, and has a simple structure. The partition 3 is arranged between the cross bone column 1 and the T-bone column 2, and the upper end of the cross bone column 1 and the lower end of the T-bone column 2 are connected by the partition 3, so that the cross bone column 1 is converted into a T-bone column 2.

[0031] Since the flanges of the cross-bone column 1 and the T-bone column 2 are staggered, in order to ensure the continuity of force transmission between the upper end of the cross-bone column 1 and the T-bone column 2, vertical stiffening plates 4 are set at the staggered positions of the flanges of the cross-bone column 1 and the T-bone column 2. The cross-bone column 1, the T-bone column 2, and the vertical stiffening plates 4 are all connected to the partition 3. Optionally, the welds connecting the lower cross-bone column 1, the upper T-bone column 2, the vertical stiffening plates 4 and the partition 3 need to ensure equal strength. The cross-bone column 1, the T-bone column 2, and the vertical stiffening plates 4 are all kept vertical to the partition 3. The vertical stiffening plates 4 fill in the staggered flanges of the cross-bone column 1 and the T-bone column 2 or vertically support the flanges to prevent the flanges from being suspended, so as to achieve continuous force transmission at the variable section conversion nodes of the cross-bone column 1 and the T-bone column 2.

[0032] At the same time, the partition 3 is provided with a plurality of exhaust holes at positions avoiding the frame columns to ensure the compactness of the poured concrete. The node area does not involve a closed cavity, and the on-site pouring of concrete is relatively simple.

[0033] The bone column with variable cross-section conversion node provided by the utility model transforms the cross bone column 1 into a T-shaped bone column 2 through a partition plate 3, and a vertical stiffening plate 4 is arranged to ensure continuous and reliable force transmission. It has a simple structure, low cost, and is convenient for factory processing and on-site construction.

[0034] On the basis of the above-mentioned specific embodiments, the partition plate 3 is an overhanging plate relative to the cross bone column 1 and the T-bone column 2, and the overhanging distance of the partition plate 3 on one side beyond the bone column shaft is greater than or equal to 25 mm.

[0035] In a specific embodiment, the partition 3 is an overhanging plate, and the edge of the partition 3 exceeds the flange of the bone column by a certain distance. The flange of the bone column cannot be set close to the edge of the partition 3. Specifically, the unilateral overhanging distance of the partition 3 beyond the body of the bone column is not less than 25 mm. The bone column avoids the edge area of ​​the partition 3 which is easy to deform, thereby reducing the concentrated stress at the edge and the deformation of the edge of the partition 3, preventing the problem of reduced contact area between the bone column and the partition 3 due to processing errors, and ensuring the connection strength and rigidity of the partition 3 and the bone column.

[0036] On the basis of the above-mentioned specific embodiments, the thickness of the partition 3 is greater than or equal to the maximum value of the flange thickness of the cross-bone column 1 and the T-bone column 2 .

[0037] In a specific embodiment, in order to improve the bearing capacity of the partition 3 supporting the T-bone column 2, the thickness of the partition 3 is selected to be larger. Specifically, the thickness of the partition 3 is larger than the thickness of the column flange, that is, the minimum thickness of the partition 3 is not less than the maximum value of the flange thickness of the cross column 1 and the T-bone column 2. The thicker the partition 3 is, the greater the load it can withstand, providing uniform stress distribution, which helps to improve the overall stability of the structure, extend the fatigue life, and ensure the reliability and safety of the structure.

[0038] On the basis of the above-mentioned specific embodiments, the partition plate 3 is provided with exhaust holes in each divided area of ​​the cross-bone column 1 and the T-bone column 2 .

[0039] In a specific embodiment, the projections of the cross-bone column 1 and the T-bone column 2 on the partition 3 constitute a plurality of segmented areas, and each segmented area is provided with an exhaust hole. The number of exhaust holes varies according to the size of the segmented area. A larger segmented area has a larger number of exhaust holes, and a smaller segmented area has a smaller number of exhaust holes. Similarly, the size of the exhaust hole is also set according to the size of the segmented area. A large-aperture exhaust hole is suitable for a large segmented area, and a small-aperture exhaust hole is suitable for a small segmented area.

[0040] The exhaust holes are preferably arranged in the middle of the segmented area, and a plurality of exhaust holes are evenly distributed to play a role in exhausting the slurry when pouring concrete, thereby preventing the concrete from being poured loosely and affecting its quality.

[0041] Based on the above specific embodiments, the partition 3 includes a thick plate and a thin plate, the flanges of the cross bone column 1 and the T-bone column 2 are arranged on the thick plate, the exhaust holes are arranged on the thin plate, and the thickness of the thick plate is greater than or equal to the maximum thickness of the flanges of the cross bone column 1 and the T-bone column 2.

[0042] In a specific embodiment, the partition 3 has a stepped surface, and the thick plate and the thin plate are arranged in layers. The thickness of the thick plate is greater than or equal to the maximum thickness of the flanges of the cross bone column 1 and the T-shaped bone column 2, and the flanges of the bone column are connected to the thick plate, so as to ensure that the partition 3 has a strong load-bearing capacity and can support the bone column without crushing.

[0043] The thickness of the thin plate is small, which is smaller than the thickness of the thick plate. Under the premise of ensuring strength, the weight of the partition 3 is reduced. The exhaust hole is set at the thin plate to reduce the contact area between the exhaust hole and the concrete, ensuring the smoothness of the on-site concrete pouring.

[0044] In the vertical direction, the thick plate and the thin plate can be symmetrically distributed up and down. At this time, the partition 3 has a balanced supporting capacity for the cross-bone column 1 and the T-bone column 2 on the upper and lower sides; the thick plate and the thin plate can also be flush on the upper surface or flush on the lower surface, which is convenient for processing.

[0045] Furthermore, the thick plate and the thin plate can be integrally formed, machined, or welded together, all within the protection scope of the present application.

[0046] In a preferred embodiment, the partition 3 is provided with a cut corner at the position where the corner is not connected to the bone column, so as to reduce the weight of the partition 3, reduce the concentrated stress at the corner, and reduce the knock and hook at the corner.

[0047] On the basis of the above-mentioned specific embodiments, the vertical stiffening plate 4 includes a flange widening reinforcement plate 41. When the flanges of the cross-bone column 1 and the T-bone column 2 are in the same plane and staggered, the flange widening reinforcement plate 41 is connected to the side of the flange of the cross-bone column 1 and / or the T-bone column 2 and the partition 3.

[0048] In a specific embodiment, when the flanges of the cross column 1 and the T-shaped column 2 are staggered in their planes, the vertical stiffening plate 4 is provided as a flange widening reinforcement plate 41. At this time, the flange widening reinforcement plate 41 is triangular, wherein the two sides are respectively connected with the side surfaces of the flanges of the cross column 1 or the T-shaped column 2 and the surface of the partition 3, and the flange widening reinforcement plate 41 compensates for the width of the flanges, keeps the widths of the upper and lower column flanges as equal as possible, and ensures the vertical force transmission continuity.

[0049] In a preferred embodiment, the side of the flange of the cross-bone column 1 or the T-bone column 2 is perpendicular to the partition 3, and the flange widening reinforcement plate 41 has a vertical right-angled side, and the two vertical right-angled sides are respectively fitted and connected to the side of the flange of the cross-bone column 1 or the T-bone column 2 and the surface of the partition 3, so as to facilitate the connection of the flange widening reinforcement plate 41, and the flange widening reinforcement plate 41 is subjected to vertical force, and the structural stability is relatively high.

[0050] On the basis of the above-mentioned specific embodiments, the vertical stiffening plate 4 includes a flange extension plate 42. When the flanges of the cross-bone column 1 and the T-bone column 2 are not in the same plane, the flange extension plate 42 is arranged under the partition 3. The flange extension plate 42 is connected to the flange, web and partition 3 of the cross-bone column 1. The flange extension plate 42 is located directly below the corresponding position of the flange of the T-bone column 2.

[0051] In a specific embodiment, when the flanges of the cross column 1 and the T-shaped column 2 are not in the same plane, the vertical stiffening plate 4 is used as an extension of the column flange, and the vertical stiffening plate 4 is a flange extension plate 42. It should be noted that the flange extension plate 42 can be set at the corresponding position of the upper column flange, and the corresponding position of the lower column flange can be omitted, and of course, it can also be set at the corresponding positions of both the upper column and the lower column.

[0052] When the flange extension plate 42 is arranged at the corresponding position of the upper column flange, the flange extension plate 42 is arranged below the partition 3, and the flange extension plate 42 has two right-angled sides, one of which is fitted and connected with the web, and the other right-angled side is connected with the surface of the partition 3, and the plate surface of the flange extension plate 42 is abutted and connected with the end face of the flange. At this time, the flange extension plate 42 is parallel to the other web. The flange extension plate 42 coincides with the projection of the flange of the T-shaped column 2 on the partition 3, that is, the flange extension plate 42 is located directly below the corresponding position of the flange of the T-shaped column 2, and the flange extension plate 42 vertically supports the flange of the T-shaped column 2 to prevent the flange of the T-shaped column 2 from being suspended, and ensure that the flange of the T-shaped column 2 transmits force continuously in the vertical direction.

[0053] Similarly, the flange extension plate 42 is arranged at the corresponding position of the lower bone column flange. At this time, the flange extension plate 42 is arranged on the partition 3. The flange extension plate 42 vertically supports the flange of the cross bone column 1 to prevent the flange of the cross bone column 1 from being suspended in the air, and ensures that the flange of the cross bone column 1 continuously transmits force in the vertical direction. Since the partition 3 has a small supporting effect on the flange of the lower bone column, the flange of the lower bone column is supported on the mounting surface below, and the corresponding position of the flange of the lower bone column can be omitted to simplify the structure.

[0054] On the basis of the above-mentioned specific embodiments, the width of the flange widening reinforcement plate 41 is the distance between the upper and lower column flanges.

[0055] In a specific embodiment, the sum of the flange of the cross-bone column 1 and the connected flange widening reinforcement plate 41 is equal to the sum of the flange of the T-bone column 2 and the connected flange widening reinforcement plate 41, and the two sides of the flange of the cross-bone column 1 and the connected flange widening reinforcement plate 41 are flush with the two sides of the flange of the T-bone column 2 and the connected flange widening reinforcement plate 41, ensuring that the flange of the cross-bone column 1 and the flange of the T-bone column 2 are supported vertically, there is no suspended part of the flange, and the force transmission is continuous in the vertical direction.

[0056] Based on the above-mentioned specific embodiments, the width of the flange extension plate 42 is equal to the corresponding width of the flange of the T-shaped column 2 .

[0057] In a specific embodiment, when the vertical stiffening plate 4 serves as an extension section of the upper column flange, the width of the flange extension plate 42 is the corresponding width of the upper column flange, ensuring that the flanges of the cross column 1 and the T-column 2 are supported vertically, without any suspended parts of the flanges, and continuous force transmission in the vertical direction.

[0058] It should be noted that, in order to ensure the convenience of connecting the flange extension plate 42 while ensuring the vertical force transmission is relatively continuous, the flange extension plate 42 is provided when the width is greater than or equal to 50 mm. When the width of the flange extension plate 42 is less than 50 mm, the flange extension plate 42 is too small and difficult to operate, so it may not be provided. In other words, when the width of the flange widening reinforcement plate 41 or the flange extension plate 42 is less than or equal to 50 mm, it may not be provided.

[0059] On the basis of the above-mentioned specific embodiments, the thickness of the flange widening reinforcement plate 41 is consistent with the thickness of the flange of the bone column to be reinforced; the thickness of the flange extension plate 42 is consistent with the thickness of the flange of the T-shaped bone column 2.

[0060] In a specific embodiment, when the vertical stiffening plate 4 is used as a flange widening reinforcement plate 41, its thickness is consistent with the thickness of the bone column flange to be reinforced; when the vertical stiffening plate 4 is used as an extension section of the upper bone column flange, the thickness of the flange extension plate 42 is consistent with the thickness of the flange of the T-shaped bone column 2, ensuring that the vertical stiffening plate 4 is equal to the thickness of the bone column flange to be supported, and both sides are flush, which can fully support the end face of the bone column flange without increasing the pressure burden of the bone column flange.

[0061] Based on the above-mentioned specific embodiments, the vertical stiffening plate 4 is divided into a straight section and a narrowed section in the axial direction of the bone column. The straight section is close to the partition 3, and the length of the straight section is not less than 20mm~50mm. The width of the narrowed section narrows from the partition 3 to both sides, and the slope is not greater than 1:2.5.

[0062] In a specific embodiment, the vertical stiffening plate 4 is triangular in shape as a whole, has two vertical sides, and the hypotenuse includes a straight section and a narrowed section. The width of the vertical stiffening plate 4 is equal to the width of the straight section, and the straight section is arranged on the side close to the partition 3, and the right-angle side where the straight section is located is connected to the partition 3. The vertical force of the column flange is transmitted to the straight section, and the length of the straight section meets the bearing capacity. The length of the straight section is not less than 20mm~50mm, and the minimum length can be determined according to the actual plate thickness and the notch welding process. The straight section is reduced in a section away from the partition 3 to form a narrowed section, and the end of the narrowed section is smoothly connected to the flange, and the force received by the straight section is gradually transmitted to the flange connected thereto, ensuring that the cross column 1 is transformed into the T-shaped column 2. The vertical force transmission is continuous. The slope of the narrowed section is not greater than 1:2.5, and the reduction speed should not be too fast to ensure that the narrowed section has a sufficiently large bearing capacity.

[0063] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0064] The above is a detailed introduction to the bone column of the variable cross-section conversion node provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A bone column with a variable cross-section transition node, characterized in that: The invention comprises a cross-bone column (1) at a lower part, a T-bone column (2) at an upper part, and a partition plate (3) arranged between the cross-bone column (1) and the T-bone column (2); the cross-bone column (1) and the T-bone column (2) are staggered at flange positions, and vertical stiffening plates (4) are arranged at the staggered flange positions; the cross-bone column (1), the T-bone column (2), and the vertical stiffening plates (4) are all vertically connected to the partition plate (3); and the partition plate (3) is provided with a plurality of exhaust holes at a position avoiding the cross-bone column.

2. The bone column of the variable cross-section transition node according to claim 1, characterized in that: The partition plate (3) is an outwardly extending plate relative to the cross bone column (1) and the T-bone column (2), and the outwardly extending distance of the partition plate (3) on one side beyond the column shaft is greater than or equal to 25 mm.

3. The bone column of the variable cross-section transition node according to claim 1, characterized in that: The thickness of the partition plate (3) is greater than or equal to the maximum value of the flange thickness of the cross-bone column (1) and the T-bone column (2).

4. The bone column of the variable cross-section transition node according to claim 3, characterized in that: The partition plate (3) is provided with the exhaust hole in each divided area of ​​the cross-bone column (1) and the T-bone column (2).

5. The bone column of the variable cross-section transition node according to any one of claims 1 to 4, characterized in that: The vertical stiffening plate (4) comprises a flange widening reinforcement plate (41). When the flanges of the cross-bone column (1) and the T-bone column (2) are in the same plane and staggered, the flange widening reinforcement plate (41) is connected to the side of the flange of the cross-bone column (1) and / or the T-bone column (2) and the partition plate (3).

6. The bone column of the variable cross-section transition node according to claim 5, characterized in that: The vertical stiffening plate (4) comprises a flange extension plate (42). When the flanges of the cross-bone column (1) and the T-bone column (2) are not in the same plane, the flange extension plate (42) is arranged below the partition plate (3). The flange extension plate (42) is connected to the flange, web and partition plate (3) of the cross-bone column (1). The flange extension plate (42) is located directly below the corresponding position of the flange of the T-bone column (2).

7. The bone column of the variable cross-section transition node according to claim 6, characterized in that: The width of the flange widening reinforcement plate (41) is the distance between the upper and lower frame column flanges; the width of the flange extension plate (42) is equal to the corresponding width of the flange of the T-shaped frame column (2).

8. The bone column of the variable cross-section transition node according to claim 6, characterized in that: The thickness of the flange widening reinforcement plate (41) is consistent with the thickness of the bone column flange to be reinforced.

9. The bone column of the variable cross-section transition node according to claim 6, characterized in that: The thickness of the flange extension plate (42) is consistent with the thickness of the flange of the T-shaped column (2).

10. The bone column of the variable cross-section transition node according to claim 6, characterized in that: The vertical stiffening plate (4) is divided into a straight section and a narrowed section in the direction of the bone column axis, the straight section is close to the partition (3), the length of the straight section is not less than 20-50 mm, and the width of the narrowed section narrows from the partition (3) to both sides, with a slope of no more than 1:2.5.

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