Tension resisting rocker column foot device

Abstract

The present application relates to a kind of anti-tension swing column foot devices, belong to civil engineering seismic technology field, the anti-tension swing column foot device includes foundation connecting mechanism, upper column connecting mechanism and side connecting component;Foundation connecting mechanism includes bottom plate, lower connecting column fixedly connected to the top of bottom plate, and lower base plate fixedly connected to the top center of lower connecting column;Upper column connecting mechanism includes upper connecting column and upper base plate, upper connecting column is correspondingly set in the upper of lower connecting column, and gap is left between the bottom of upper connecting column and the top of lower connecting column, upper base plate is fixedly connected to the bottom center of upper connecting column, upper base plate is on lower base plate and is connected by first connecting piece with lower base plate;Side connecting component upper portion is connected to the side of upper connecting column by second connecting piece, and lower portion is connected to the corresponding side of lower connecting column by third connecting piece.The anti-tension swing column foot device can withstand larger axial tension, realizes the application of swing column foot in supporting frame structure.

Description

Technical Field

[0001] This invention belongs to the field of seismic engineering technology, and particularly relates to a tensile sway column base device. Background Technology

[0002] In the field of civil engineering, rocking column bases can reduce the damage to column bases under seismic loading by weakening the rotational constraint between the column base and the foundation, and achieve repositioning using the structure's own weight. Rocking column bases offer advantages such as controllable damage, replaceable components, and simple construction, making them an effective way to achieve structural toughness. Previous test results show that rocking column bases generally do not experience significant damage under 3% inter-story deformation, and even maintain stable hysteretic performance under 6%-7% inter-story displacement. However, the tensile bearing capacity of existing rocking column bases is generally relatively small. When used to support frame structures, the rocking column bases are subjected to significant tensile forces due to the axial force of the support, which affects their seismic performance. Therefore, how to provide a tensile rocking column base device capable of withstanding large axial tensile forces to enable the application of rocking column bases in supported frames is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides an anti-tension swaying column foot device capable of withstanding large axial tension.

[0004] This invention provides an anti-tensile rocking column base device, comprising:

[0005] The basic connection mechanism includes:

[0006] The base plate is used to connect to the foundation located below;

[0007] The lower connecting column is fixedly connected to the top of the base plate;

[0008] The lower pad is fixedly connected to the top center of the lower connecting column;

[0009] The upper column connecting mechanism includes:

[0010] The upper connecting post is positioned above the lower connecting post, with a gap between the bottom of the upper connecting post and the top of the lower connecting post.

[0011] The upper pad is fixedly connected to the bottom center of the upper connecting column, and the upper pad rests against the lower pad and is connected to the lower pad through the first connector;

[0012] The side connecting assembly has its upper part connected to the side of the upper connecting column via a second connector, and its lower part connected to the corresponding side of the lower connecting column via a third connector; the side connecting assemblies are arranged in pairs, with the two sets of side connecting assemblies arranged in pairs located on opposite sides of the upper and lower connecting columns.

[0013] In this technical solution, the axial pressure of the column is borne by the upper and lower pads between the upper and lower connecting columns, the axial tension is transmitted by the first connecting piece that is fastened between the upper and lower pads, and the bending moment is controlled by the side connecting assembly. Thus, without hindering the swing and reset performance of the column base device, it also has tensile strength and good seismic performance.

[0014] In some embodiments, both the upper and lower connecting columns are H-shaped steel columns. The lower pad is connected to the middle of the web of the lower connecting column, and the upper pad is connected to the middle of the web of the upper connecting column. The side connecting assembly is connected between the flanges of the lower and upper connecting columns. In this technical solution, both the upper and lower connecting columns are H-shaped steel columns, which facilitates the installation of the upper and lower pads and simplifies the column base structure.

[0015] In some embodiments, an oblique stiffening rib connects the upper pad plate and the flange of the upper connecting column, and the side of the oblique stiffening rib is connected to the web of the upper connecting column. A first vertical stiffening rib connects the upper pad plate and the web of the upper connecting column. A second vertical stiffening rib connects the lower pad plate and the bottom plate, and the side of the second vertical stiffening rib is connected to the web of the lower connecting column. A third vertical stiffening rib also connects the lower pad plate and the web of the lower connecting column. In this technical solution, the oblique stiffening rib, the first vertical stiffening rib, the second vertical stiffening rib, and the third vertical stiffening rib enhance the structural strength of the upper and lower pad plates, effectively improving the tensile performance of the rocking column foot device.

[0016] In some embodiments, the first connector includes a first bolt that vertically penetrates an upper pad and a lower pad. A disc spring is fitted around the outer periphery of the first bolt, with one end of the disc spring abutting against the head of the first bolt and the other end abutting against the upper or lower pad near the head of the first bolt. This technical solution connects the upper and lower pads through the cooperation of the first bolt and the disc spring, which can fully utilize the tensile bearing capacity of the first bolt and improve the tensile bearing capacity of the column base device. The disc spring can be flattened to meet the relative rotation requirements between the upper and lower connecting columns.

[0017] In some embodiments, the side connection component includes:

[0018] The connecting plate has its upper part attached to the outer side of the flange of the upper connecting column and its lower part attached to the outer side of the flange of the lower connecting column.

[0019] Two connecting angle steels are symmetrically distributed with respect to the web of the upper connecting column and the web of the lower connecting column. The upper parts of the two flanges of the connecting angle steels are respectively attached to the web and the inner side of the flange of the upper connecting column, and the lower parts of the two flanges of the connecting angle steels are respectively attached to the web and the inner side of the flange of the lower connecting column.

[0020] The second connector tightly connects the upper part of the connecting plate, the flange of the upper connecting column, and the upper part of the connecting angle steel. The third connector tightly connects the lower part of the connecting plate, the flange of the lower connecting column, and the lower part of the connecting angle steel.

[0021] In this technical solution, the connecting plate and connecting angle steel are used together as a side connection component, which can effectively control the bending moment of the column base and transmit the column shear force when the upper connecting column swings, thereby improving the shear bearing capacity of the column base device.

[0022] In some embodiments, the second connector includes a second bolt that sequentially passes through the upper part of the connecting plate, the wing plate of the upper connecting column, and the upper part of the wing plate on the side of the connecting angle steel that is in contact with the wing plate of the upper connecting column; the third connector includes a third bolt that sequentially passes through the lower part of the connecting plate, the wing plate of the lower connecting column, and the lower part of the wing plate on the side of the connecting angle steel that is in contact with the wing plate of the lower connecting column. In this technical solution, using bolts to connect the connecting plate, the wing plate of the connecting column, and the connecting angle steel simplifies the structure and facilitates assembly.

[0023] In some embodiments, the upper connecting column's flange has a circular hole for the second bolt to pass through, and the lower connecting column's flange has an elongated hole for the third bolt to pass through; alternatively, the upper connecting column's flange has an elongated hole for the second bolt to pass through, and the lower connecting column's flange has a circular hole for the third bolt to pass through. In this technical solution, by sliding the second bolt along the elongated hole, the upper connecting column can rotate relative to the lower connecting column, which can both control the column base bending moment and protect the column base, and dissipate the energy input by the earthquake through friction.

[0024] In some embodiments, an angle steel stiffening rib is connected between the two flanges of the connecting angle steel, and the angle steel stiffening rib is located between the upper and lower connecting columns. In this technical solution, the structural strength of the connecting angle steel can be strengthened by the provided angle steel stiffening rib, thereby improving the shear bearing capacity of the column base device.

[0025] In some embodiments, a node plate is connected between the outer side of the lower connecting column and the base plate, and the connecting plate has a slot for inserting the node plate. In this technical solution, the slot is provided in the connecting plate to facilitate the connection of the node plate, thereby facilitating the application of the column base device in the supporting frame structure.

[0026] In some embodiments, a wedge-shaped stiffening rib connects the outer side of the flange of the lower connecting column to the base plate. In this technical solution, the wedge-shaped stiffening rib strengthens the connection between the lower connecting column and the base plate.

[0027] Based on the above technical solution, the anti-tension rocking column foot device in the embodiment of the present invention can withstand a large axial tension without hindering the rocking reset performance, realizing the application of rocking column feet in supporting frame structures, and has good seismic performance. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is a perspective view of an embodiment of the anti-tensile swaying column foot device of the present invention;

[0030] Figure 2 This is a front view of an embodiment of the anti-tensile rocking column foot device of the present invention;

[0031] Figure 3 This is an exploded view of one embodiment of the anti-tensile swaying column foot device of the present invention;

[0032] Figure 4 This is a perspective view of another embodiment of the anti-tensile rocking column foot device of the present invention.

[0033] In the picture:

[0034] 1. Basic connection mechanism; 2. Upper column connection mechanism; 3. Side connection assembly; 4. First bolt; 5. Disc spring; 6. Node plate;

[0035] 11. Base plate; 12. Lower connecting column; 121. Round hole; 13. Lower pad plate; 14. Second vertical stiffening rib; 15. Third vertical stiffening rib; 16. Wedge-shaped stiffening rib;

[0036] 21. Upper connecting column; 211. Elongated hole; 22. Upper pad; 23. Diagonal stiffening rib; 24. First vertical stiffening rib;

[0037] 31. Connecting plate; 32. Connecting angle steel; 321. Angle steel stiffening rib; 33. Second bolt; 34. Third bolt. Detailed Implementation

[0038] The technical solutions in 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 a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0040] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] As attached Figures 1-3 As shown in an illustrative embodiment of the anti-tensile swaying column base device of the present invention, the anti-tensile swaying column base device includes a base connection mechanism 1, an upper column connection mechanism 2, and a side connection assembly 3; the base connection mechanism 1 includes a base plate 11, a lower connecting column 12, and a lower pad 13. The base plate 11 is used to connect to the foundation located below, the lower connecting column 12 is fixedly connected to the top of the base plate 11, and the lower pad 13 is fixedly connected to the top center of the lower connecting column 12; the upper column connection mechanism 2 includes an upper connecting column 21 and an upper pad 22. The upper connecting column 21 is used to connect to the frame column located above, and the upper connecting column 21... It should be set above the lower connecting post 12. A gap is left between the bottom of the upper connecting post 21 and the top of the lower connecting post 12. The upper pad 22 is fixedly connected to the bottom center of the upper connecting post 21. The upper pad 22 abuts against the lower pad 13 and is connected to the lower pad 13 through the first connector. The upper part of the side connecting component 3 is connected to the side of the upper connecting post 21 through the second connector, and the lower part is connected to the corresponding side of the lower connecting post 12 through the third connector. The side connecting components 3 are set in pairs. The two sets of side connecting components 3 set in pairs are located on opposite sides of the upper connecting post 21 and the lower connecting post 12, respectively.

[0043] It should be noted that the upper connecting post 21 and the lower connecting post 12 form a gap through the upper pad 22 and the lower pad 13, and the height of the gap is determined according to the relative angle between the upper connecting post 21 and the lower connecting post 12.

[0044] The aforementioned anti-tensile swaying column base device has a gap between the upper connecting column 21 and the lower connecting column 12. The middle parts of the upper connecting column 21 and the lower connecting column 12 are connected by an upper pad 22 and a lower pad 13, and the sides are connected by a side connecting assembly 3, so that the upper connecting column 21 can sway relative to the lower connecting column 12. At the same time, it bears the axial pressure of the column through the abutment of the upper pad 22 and the lower pad 13, transmits the axial tension through the first connecting piece that is fastened between the upper pad 22 and the lower pad 13, and controls the bending moment of the column through the side connecting assembly 3. Thus, without hindering the swaying and restoring performance of the column base device, it also has tensile strength and good seismic performance.

[0045] like Figures 1-3 As shown, in this embodiment, both the upper connecting column 21 and the lower connecting column 12 are H-shaped steel columns. The lower pad 13 is connected to the middle of the web of the lower connecting column 12, and the upper pad 22 is connected to the middle of the web of the upper connecting column 21. The side connecting assembly 3 is connected between the flange of the lower connecting column 12 and the flange of the upper connecting column 21. It should be noted that the upper pad 22 is welded to the middle of the web of the upper connecting column 21, and the upper pad 22 is symmetrical with respect to the web of the upper connecting column 21; the lower pad 13 is welded to the middle of the web of the lower connecting column 12, and the lower pad 13 is symmetrical with respect to the web of the lower connecting column 12. It should also be noted that when the upper connecting column 21 is an H-shaped steel column: when the upper frame column is also an H-shaped steel column, the upper connecting column 21 and the frame column are integrally set; when the frame column has other cross-sectional forms, the frame column must be welded to the upper connecting column 21.

[0046] To improve the structural strength of the column base assembly, such as Figure 3As shown, an oblique stiffening rib 23 connects the upper pad 22 and the wing plate of the upper connecting column 21, and the side of the oblique stiffening rib 23 is connected to the web plate of the upper connecting column 21. A first vertical stiffening rib 24 connects the upper pad 22 and the web plate of the upper connecting column 21. A second vertical stiffening rib 14 connects the lower pad 13 and the bottom plate 11, and the side of the second vertical stiffening rib 14 is connected to the web plate of the lower connecting column 12. A third vertical stiffening rib 15 also connects the lower pad 13 and the web plate of the lower connecting column 12. It should be noted that in this embodiment, there are four oblique stiffening ribs 23, which are respectively connected to the four corners of the upper pad 22. Each corner of the upper pad 22 is connected to the inner side of the wing plate of the upper connecting column 21 near that corner, and the oblique stiffening ribs 23 are connected to the upper pad 22, the web plate of the upper connecting column 21, and the wing plate by welding. Two first vertical stiffening ribs 24 are arranged vertically, symmetrically positioned on both sides of the web of the upper connecting column 21. The lower ends of the first vertical stiffening ribs 24 are connected to the middle of the upper pad 22, and the first vertical stiffening ribs 24 are welded to the web of the upper pad 22 and the upper connecting column 21. Four second vertical stiffening ribs 14 are arranged vertically, respectively connected to the four corners of the lower pad 13, and the second vertical stiffening ribs 14 are welded to the web of the lower pad 13, the lower connecting column 12, and the bottom plate 11. The third vertical stiffening rib 15 is arranged vertically, and there are two third vertical stiffening ribs 15. The two third vertical stiffening ribs 15 are symmetrically arranged on both sides of the web of the lower connecting column 12, and the upper end of the third vertical stiffening rib 15 is connected to the middle of the lower pad plate 13. The third vertical stiffening rib 15 is connected to the lower pad plate 13 and the web of the lower connecting column 12 by welding. It should also be noted that the length of the second vertical stiffening rib 14 is greater than the length of the third vertical stiffening rib 15, and the length of the first vertical stiffening rib 24 is preferably the same as the length of the third vertical stiffening rib 15. In this embodiment, the oblique stiffening rib 23 connects the upper pad 22 to the web and wing plate of the upper connecting column 21 as a whole, and the oblique stiffening rib 23 provides oblique support, effectively improving the structural strength of the upper pad 22. The first vertical stiffening rib 24 further strengthens the structural strength of the middle part of the upper pad 22. The second vertical stiffening rib 14 connects the lower pad 13 to the web and bottom plate 11 of the lower connecting column 12 as a whole, and the second vertical stiffening rib 14 provides tensile strength, effectively improving the structural strength of the lower pad 13. The third vertical stiffening rib 15 further strengthens the structural strength of the middle part of the lower pad 13. In summary, in this embodiment, the oblique stiffening rib 23, the first vertical stiffening rib 24, the second vertical stiffening rib 14, and the third vertical stiffening rib 15 strengthen the structural strength of the upper pad 22 and the lower pad 13, effectively improving the tensile performance of the rocking column foot device.

[0047] like Figure 2 and Figure 3 As shown, the first connecting member includes a first bolt 4, which vertically penetrates the upper pad 22 and the lower pad 13. A disc spring 5 is sleeved around the outer periphery of the first bolt 4, with one end of the disc spring 5 abutting against the head of the first bolt 4 and the other end abutting against the upper pad 22. It can be understood that when the head of the first bolt is downward, the disc spring is positioned between the head of the first bolt and the lower pad. In this embodiment, the upper pad 22 and the lower pad 13 are connected by the cooperation of the first bolt 4 and the disc spring 5. When the upper connecting column 21 oscillates relative to the lower connecting column 12, the first bolt 4 bears axial tension, and the disc spring 5 is compressed and deformed, allowing it to be flattened, thus fully utilizing the tensile bearing capacity of the first bolt 4. It should be noted that a bolt with a large diameter is selected for the first bolt 4 to ensure sufficient tensile bearing capacity.

[0048] like Figures 1-3 As shown, in this embodiment, the side connecting assembly 3 includes a connecting plate 31 and two connecting angle steels 32; the upper part of the connecting plate 31 is attached to the outer side of the wing plate of the upper connecting column 21, and the lower part is attached to the outer side of the wing plate of the lower connecting column 12; the two connecting angle steels 32 are symmetrically distributed relative to the web of the upper connecting column 21 and the web of the lower connecting column 12, the upper parts of the two wing plates of the connecting angle steel 32 are respectively attached to the web and the inner side of the wing plate of the upper connecting column 21, and the lower parts of the two wing plates of the connecting angle steel 32 are respectively attached to the web and the inner side of the wing plate of the lower connecting column 12; the second connecting member tightly connects the upper part of the connecting plate 31, the wing plate of the upper connecting column 21 and the upper part of the connecting angle steel 32, and the third connecting member tightly connects the lower part of the connecting plate 31, the wing plate of the lower connecting column 12 and the lower part of the connecting angle steel 32. By installing connecting plates 31 on the outer sides of the side flanges of the upper connecting column 21 and the lower connecting column 12, the column base bending moment (the swaying amplitude of the upper connecting column 21) can be effectively controlled; by installing connecting angle steel 32 on the inner sides of the side flanges of the upper connecting column 21 and the lower connecting column 12, the column shear force can be transferred when the upper connecting column 21 sways, thereby improving the shear bearing capacity of the column base device. It should be noted that, as... Figure 2 and Figure 3 As shown, in order to allow space for the diagonal stiffening rib 23 to move, the connecting angle steel 32 is all chamfered.

[0049] like Figure 2 and Figure 3As shown, in this embodiment, the second connecting member includes a second bolt 33, which sequentially penetrates the upper part of the connecting plate 31, the wing plate of the upper connecting column 21, and the upper part of the wing plate on the side of the connecting angle steel 32 that is in contact with the wing plate of the upper connecting column 21; the third connecting member includes a third bolt 34, which sequentially penetrates the lower part of the connecting plate 31, the wing plate of the lower connecting column 12, and the lower part of the wing plate on the side of the connecting angle steel 32 that is in contact with the wing plate of the lower connecting column 12. It should be noted that since the second bolt 33 and the third bolt 34 do not bear tensile force, their diameters can be smaller than the first bolt 4.

[0050] like Figure 3 As shown, the flange of the upper connecting column 21 has an elongated hole 211 for the second bolt 33 to pass through, and the flange of the lower connecting column 12 has a circular hole 121 for the third bolt 34 to pass through. With this arrangement, when the upper connecting column 21 sways, after reaching a predetermined bending moment, the second bolt 33 can slide relative to the elongated hole 211, allowing the upper connecting column 21 to rotate relative to the lower connecting column 12. This controls the bending moment at the column base, protecting the column base, and also dissipates the energy input from the earthquake through friction. It is understood that the elongated hole and the circular hole can also be reversed, i.e., the flange of the upper connecting column has a circular hole for the second bolt to pass through, and the flange of the lower connecting column has an elongated hole for the third bolt to pass through. It should be noted that the length of the elongated hole 211 is determined based on the relative rotation angle between the upper connecting column 21 and the lower connecting column 12. It should also be noted that the preload of the second bolt 33 and the third bolt 34 is determined according to the bending moment transmission requirements between the upper connecting column 21 and the lower connecting column 12.

[0051] like Figure 3 As shown, in this embodiment, an angle steel stiffening rib 321 is connected between the two flanges of the connecting angle steel 32, and the angle steel stiffening rib 321 is located between the upper connecting column 21 and the lower connecting column 12. The angle steel stiffening rib 321 strengthens the structural strength of the connecting angle steel 32 and improves the shear bearing capacity of the column base device. It should be noted that the angle steel stiffening rib 321 is connected to the two flanges of the connecting angle steel 32 by welding.

[0052] In addition, it should be noted that, such as Figure 3 As shown, a wedge-shaped stiffening rib 16 connects the outer side of the flange of the lower connecting column 12 to the base plate 11. The wedge-shaped stiffening rib 16 strengthens the connection between the lower connecting column 12 and the base plate 11. It should be noted that the lower connecting column 12 is welded to the base plate 11, and the wedge-shaped stiffening rib 16 is welded between the flange of the lower connecting column 12 and the base plate 11.

[0053] like Figure 4As shown, in another illustrative embodiment of the anti-tension sway column foot device of the present invention, in order to be applied to the support frame structure, a supporting node plate 6 is connected between the outer side of the lower connecting column 12 and the base plate 11, and the connecting plate 31 is provided with a slot for the node plate 6 to be inserted.

[0054] Through the description of several embodiments of the anti-tensile rocking column base device of the present invention, it can be seen that the embodiments of the anti-tensile rocking column base device of the present invention have at least one or more of the following advantages:

[0055] 1. The anti-tension rocking column foot device provided in the embodiment of the present invention bears the axial pressure of the column body through the upper pad 22 and the lower pad 13 provided between the upper connecting column 21 and the lower connecting column 12, and transmits the axial tension through the first connecting member connecting the upper pad 22 and the lower pad 13. It can withstand a large axial tension, so as to realize the application of rocking column foot in the support frame structure.

[0056] 2. The anti-tensile swaying column base device provided in this embodiment of the invention can effectively control the column base bending moment by setting a connecting plate 31 on the outer side of the side flange of the upper connecting column 21 and the lower connecting column 12; and can transmit column shear force when the upper connecting column 21 sways by setting a connecting angle steel 32 on the inner side of the side flange of the upper connecting column 21 and the lower connecting column 12, thereby improving the shear bearing capacity of the column base device.

[0057] 3. The anti-tensile swaying column foot device provided in the embodiments of the present invention has a simple structure, is easy to assemble, and has a clear force transmission path.

[0058] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A tensioned rocker column foot apparatus, characterized by, The utility model relates to a kind of foundation connecting mechanism, including: bottom plate for connecting foundation below; Lower connecting column is fixedly connected to the top of the bottom plate; Lower base plate is fixedly connected to the top center of the lower connecting column; Upper column connecting mechanism, including: Upper connecting column is correspondingly arranged above the lower connecting column, and the bottom of the upper connecting column is left with gap between the top of the lower connecting column; Upper base plate is fixedly connected to the bottom center of the upper connecting column, and the upper base plate is on the lower base plate and is connected with the lower base plate by first connecting piece; Side connecting component, upper portion is connected to the side of the upper connecting column by second connecting piece, and lower portion is connected to the corresponding side of the lower connecting column by third connecting piece;The side connecting component is arranged in pairs, and the two groups of side connecting components arranged in pairs are respectively located on the opposite sides of the upper connecting column and the lower connecting column; Wherein, the lower base plate protrudes from the top surface of the lower connecting column, and the upper base plate protrudes from the bottom surface of the upper connecting column, and the upper connecting column and the lower connecting column form gap through the upper base plate and the lower base plate; The upper connecting column and the lower connecting column are both H-shaped steel column, the lower base plate is connected to the middle part of the web of the lower connecting column, the upper base plate is connected to the middle part of the web of the upper connecting column, and the side connecting component is connected between the flange of the lower connecting column and the flange of the upper connecting column; The upper base plate and the flange of the upper connecting column are connected with inclined stiffening rib, and the side of the inclined stiffening rib is connected to the web of the upper connecting column, and the upper base plate and the web of the upper connecting column are connected with first vertical stiffening rib;Second vertical stiffening rib is connected between the lower base plate and the bottom plate, and the side of the second vertical stiffening rib is connected to the web of the lower connecting column, and third vertical stiffening rib is further connected between the lower base plate and the web of the lower connecting column; The first connecting piece includes first bolt, and the first bolt penetrates the upper base plate and the lower base plate in vertical direction, and disc spring is sleeved on the outer periphery of the first bolt, and one end of the disc spring is abutted with the head of the first bolt, and the other end is abutted with the upper base plate or the lower base plate close to the head of the first bolt; The side connecting component includes: Connecting plate, upper portion is attached to the outer side of the flange of the upper connecting column, and lower portion is attached to the outer side of the flange of the lower connecting column; Two connecting angle steels, two connecting angle steels are symmetrically distributed with respect to the web of the upper connecting column and the web of the lower connecting column, and the upper portion of the two flanges of the connecting angle steel is respectively attached to the inner side of the web and the flange of the upper connecting column, and the lower portion of the two flanges of the connecting angle steel is respectively attached to the inner side of the web and the flange of the lower connecting column; The second connecting piece tightly connects the upper portion of the connecting plate, the flange of the upper connecting column and the upper portion of the connecting angle steel, and the third connecting piece tightly connects the lower portion of the connecting plate, the flange of the lower connecting column and the lower portion of the connecting angle steel; Angle steel stiffening rib is connected between the two flanges of the connecting angle steel, and the angle steel stiffening rib is located between the upper connecting column and the lower connecting column. ​ The second connecting member comprises a second bolt, which sequentially penetrates the upper part of the connecting plate, the wing plate of the upper connecting column, and the upper part of the wing plate of the connecting angle steel on the side of the wing plate of the upper connecting column. The wing plate of the upper connecting column is provided with a round hole for the second bolt to pass through, and the wing plate of the lower connecting column is provided with an oblong hole for the third bolt to pass through; or the wing plate of the upper connecting column is provided with an oblong hole for the second bolt to pass through, and the wing plate of the lower connecting column is provided with a round hole for the third bolt to pass through.

2. The tension swing foot device of claim 1, wherein A node plate is connected between the outer side of the lower connecting column and the bottom plate, and the connecting plate is provided with a slot for the node plate to be inserted.

3. The tension swing foot device of claim 1, wherein A wedge-shaped stiffening rib is connected between the outer side of the wing plate of the lower connecting column and the bottom plate.

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