A self-resetting steel column base based on a recoverable functional earthquake-proof structure

Abstract

A self-resetting steel column foot based on a recoverable functional earthquake-proof structure relates to a self-resetting steel column foot with an earthquake-proof structure. In view of the shortcomings of existing self-resetting column feet, the present invention proposes a self-resetting steel column foot based on a recoverable functional earthquake-proof structure. Under the action of a strong earthquake, the self-resetting steel column foot of the present invention always maintains elasticity, can eliminate residual deformation after the earthquake, and achieve complete self-resetting, so that the building can continue to be used without repair after a major earthquake, greatly improving the seismic toughness and economic benefits of the building. The self-resetting steel column foot of the present invention is provided with a slotted bolt hole and a disc spring, which ensures that the steel column has a controllable lifting height under the action of load, which not only reduces the tensile design requirements of the foundation under the action of the overturning moment, saves the construction cost of the foundation, but also avoids excessive displacement and acceleration caused by the earthquake, reducing earthquake damage.

Description

Technical Field

[0001] The invention belongs to the field of steel structure earthquake protection, and in particular relates to a self-resetting steel column foot based on an earthquake-proof structure with restorable function. Background Art

[0002] Recent disasters from major earthquakes have shown that traditional structures designed for ductility basically meet the requirement of "not collapsing in strong earthquakes" under strong earthquakes, but the excessive residual deformation after the earthquake makes the repair of buildings more expensive than demolition and reconstruction. Therefore, the development of seismic-resistant and resilient structures that can quickly restore their functions after an earthquake has become one of the important frontiers in the field of structural engineering. As an important component of a recoverable functional structure, the rocking structure usually relaxes the vertical freedom constraints between the structure and the foundation so that the superstructure can be lifted and returned to its original position under the action of an earthquake. Such a design reduces the internal force response and ductility requirements of the superstructure in strong earthquakes, reducing earthquake damage. In addition, in order to enhance the self-reset ability of the structure, reduce residual deformation, and increase the stability of the rocking structure, a self-reset mechanism is usually set between the rocking body and the foundation or between adjacent rocking bodies.

[0003] Existing self-centering column bases primarily rely on high-strength prestressed steel strands and shape-memory alloy anchor bolts to provide self-centering capabilities. However, these solutions suffer from the following drawbacks: the use of high-strength prestressed steel strands reduces cross-sectional utilization, leading to yielding and expansion of the column, and also suffers from the drawback of susceptible corrosion. While shape-memory alloys offer superior performance, they are expensive, hindering widespread adoption. Therefore, there is an urgent need to develop a new, cost-effective, and superior self-centering column base node. Summary of the Invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention proposes a self-resetting steel column base based on a seismic-proof structure with recoverable function. Under the action of a strong earthquake, the self-resetting steel column base of the present invention always maintains elasticity, can eliminate residual deformation after the earthquake, and achieve complete self-resetting, so that the building can continue to be used without repair after a major earthquake, thereby greatly improving the seismic toughness and economic benefits of the building.

[0005] The self-resetting steel column foot based on the recoverable functional earthquake-proof structure of the present invention is composed of a steel column 1, a column foot bottom plate 3, an L-shaped steel 4, a foundation steel plate 5 and a self-resetting device; the column foot bottom plate 3 is arranged on the upper surface of the foundation steel plate 5, the steel column 1 is an I-beam, the steel column 1 is vertically arranged on the upper surface of the column foot bottom plate 3 and the steel column 1 is vertically fixed to the column foot bottom plate 3, and self-resetting devices are symmetrically arranged on both sides of the web of the steel column 1 on the upper surface of the column foot bottom plate 3; the L-shaped steel 4 is arranged on both sides of the flange of the steel column 1; the same oblong bolt holes are respectively provided on the flange of the steel column 1 and the vertical limbs of the L-shaped steel 4 for bolting the vertical limbs of the L-shaped steel 4 to the flange of the steel column 1; the horizontal limbs of the L-shaped steel 4 are connected to the foundation steel plate 5;

[0006] The self-resetting device is composed of a guide cylinder 301, a disc spring group, a cable 2 and an anchoring device; the disc spring group is composed of a plurality of disc springs 204 and a plurality of flat washers 205; the disc spring group is arranged in the guide cylinder 301, and the cable 2 is arranged in the center of the disc spring group, the base plate through hole 302 on the column foot base plate 3 and the base steel plate through hole 501 on the base steel plate 5, and the two ends of the cable 2 are respectively fixedly connected to the top of the disc spring group and the lower surface of the base steel plate 5 through the anchoring device; the two ends of the cable 2 are fixedly connected by the anchoring device and are in a pre-stressed state; the thickness of the vertical limb plate of the L-shaped steel is less than the thickness of the flange of the steel column 1;

[0007] The cable 2 is an ultra-high molecular weight polyethylene cable.

[0008] The present invention has the following beneficial effects:

[0009] (1) The self-resetting steel column foot of the present invention, which is based on a recoverable functional earthquake-proof structure, is suitable for controlled swing structures and self-resetting structures that hope to achieve a self-resetting function at the column foot. During installation, it is only necessary to replace the traditional rigid column foot in the structure to greatly reduce or even eliminate the residual deformation, thereby avoiding the need for large-scale repair or even demolition of the structure due to irreversible deformation. The self-resetting steel column foot of the present invention is provided with an oblong bolt hole and a disc spring, which ensures that the steel column has a controllable lifting height under the action of load, which not only reduces the tensile design requirements of the foundation under the action of the overturning moment, saves the construction cost of the foundation, but also avoids excessive displacement and acceleration caused by earthquakes, reducing earthquake damage.

[0010] (2) The ultra-high molecular weight polyethylene used in the cable 2 in the self-resetting device of the present invention has excellent corrosion resistance, strong impact resistance, high strength, and stable mechanical properties of the disc spring. The cable 2 and the disc spring group can be used in conjunction to control the lifting amplitude and falling speed of the steel column for a long time, meeting the requirements of living comfort.

[0011] (3) The cable 2 and the disc spring in the self-resetting device of the present invention always maintain an elastic state, ensuring that the steel column foot of the present invention can provide a reliable self-resetting ability, thereby realizing a rapid recovery function after an earthquake and ensuring the long-term safety and stability of the structure.

[0012] (4) The self-resetting steel column foot of the present invention, which is based on a restorable functional earthquake-proof structure, is different from the setting of the traditional prestressed steel strand anchorage point. In the present invention, the anchorage point of the cable 2 is located on the upper surface of the disc spring group and is independent of the steel column 1. Therefore, applying prestress will not reduce the overall bearing capacity of the steel column section. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the self-resetting steel column base based on the recoverable functional earthquake-proof structure;

[0014] Figure 2 This is a schematic diagram of the decomposed structure of the self-resetting steel column base based on the recoverable functional earthquake-proof structure;

[0015] Figure 3 This is the main view of the self-resetting steel column base based on the recoverable function earthquake-proof structure;

[0016] Figure 4 Constructing a bottom view of the steel column (1) and the column base plate (3);

[0017] Figure 5 Schematic diagram of the structure of L-shaped steel (4) and base steel plate (5);

[0018] Figure 6 This is a schematic diagram of the structure of one of the self-resetting devices;

[0019] Figure 7 This is an exploded schematic diagram of one of the self-resetting devices;

[0020] Figure 8 for Figure 6 sectional view of

[0021] Figure 9 This is a schematic diagram of another self-resetting device;

[0022] Figure 10 This is an exploded schematic diagram of another self-resetting device;

[0023] Figure 11 for Figure 9 sectional view of

[0024] Figure 12 for Figure 9 Schematic diagram of the composite method of the disc spring group;

[0025] Figure 13 Schematic diagram of the cone angles of the conical surfaces of the upper anchor cup 203 and the arc-shaped clip 202. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is not limited to the specific implementation methods listed below, but also includes any reasonable combination of the specific implementation methods.

[0027] Specific implementation method 1: Combination Figures 1 to 6Description: This embodiment is based on the self-resetting steel column foot of the recoverable functional earthquake-proof structure and consists of a steel column 1, a column foot bottom plate 3, an L-shaped steel 4, a foundation steel plate 5 and a self-resetting device; the column foot bottom plate 3 is arranged on the upper surface of the foundation steel plate 5, the steel column 1 is an I-beam, the steel column 1 is vertically arranged on the upper surface of the column foot bottom plate 3 and the steel column 1 is vertically fixed to the column foot bottom plate 3, and self-resetting devices are symmetrically arranged on both sides of the web of the steel column 1 on the upper surface of the column foot bottom plate 3; the L-shaped steel 4 is arranged on both sides of the flange of the steel column 1; the same oblong bolt holes are respectively provided on the flange of the steel column 1 and the vertical limbs of the L-shaped steel 4 for bolting the vertical limbs of the L-shaped steel 4 to the flange of the steel column 1; the horizontal limbs of the L-shaped steel 4 are connected to the foundation steel plate 5;

[0028] The self-resetting device is composed of a guide cylinder 301, a disc spring group, a cable 2 and an anchoring device; the disc spring group is composed of a plurality of disc springs 204 and a plurality of flat washers 205; the disc spring group is arranged in the guide cylinder 301, and the cable 2 is arranged in the center of the disc spring group, the base plate through hole 302 on the column foot bottom plate 3 and the base steel plate through hole 501 on the base steel plate 5, and the two ends of the cable 2 are respectively fixedly connected to the top of the disc spring group and the lower surface of the base steel plate 5 through the anchoring device; the two ends of the cable 2 are fixedly connected by the anchoring device and are in a pre-stressed state; the thickness of the vertical limb plate of the L-shaped steel is less than the thickness of the flange of the steel column 1; so that when the rotation center is not at the column foot, that is, when the column bottom is accompanied by horizontal displacement during the lifting process, the L-shaped steel can ensure the free lifting and reset of the steel column 1;

[0029] The cable 2 is an ultra-high molecular weight polyethylene cable. Ultra-high molecular weight polyethylene cable is made of polyethylene with a molecular weight of 1 million to 5 million. The ultra-high molecular weight polyethylene material used in cable 2 has excellent corrosion resistance; the specific strength of the ultra-high molecular weight polyethylene cable ranges from 2041 to 4124 MPa·g / cm 3 , while the specific strength of shape memory alloys ranges from 124.5 to 232.6 MPa·g / cm 3 Moreover, the price of ultra-high molecular weight polyethylene cable is only one tenth of that of shape memory alloy, so the use of ultra-high molecular weight polyethylene cable has more advantages in terms of economy.

[0030] (1) The self-resetting steel column foot of this embodiment, which is based on a recoverable functional earthquake-proof structure, is suitable for controlled swing structures and self-resetting structures that hope to achieve a self-resetting function at the column foot. During installation, it is only necessary to replace the traditional rigid column foot in the structure to greatly reduce or even eliminate the residual deformation, thereby avoiding the need for large-scale repair or even demolition of the structure due to irreversible deformation. The self-resetting steel column foot of this embodiment is provided with an oblong bolt hole and a disc spring, which ensures that the steel column has a controllable lifting height under the action of load, which not only reduces the tensile design requirements of the foundation under the action of the overturning moment, saves the construction cost of the foundation, but also avoids excessive displacement and acceleration caused by the earthquake, reducing earthquake damage.

[0031] (2) The ultra-high molecular weight polyethylene used in the cable 2 in the self-resetting device of this embodiment has excellent corrosion resistance, strong impact resistance, high strength, and stable mechanical properties of the disc spring. The cable 2 and the disc spring group can be used in conjunction to control the lifting amplitude and falling speed of the steel column for a long time, meeting the requirements of living comfort.

[0032] (3) The cable 2 and the disc spring in the self-resetting device of this embodiment always maintain an elastic state, ensuring that the steel column foot of this embodiment can provide a reliable self-resetting ability, thereby achieving a rapid recovery function after an earthquake and ensuring the long-term safety and stability of the structure.

[0033] (4) The self-resetting steel column foot of the seismic-proof structure based on the recoverable function in this embodiment is different from the setting of the traditional prestressed steel strand anchorage point. In this embodiment, the anchorage point of the cable 2 is located on the upper surface of the disc spring group and is independent of the steel column 1. Therefore, applying prestress will not reduce the overall bearing capacity of the steel column section.

[0034] Specific implementation method 2: Combination Figure 8 、 11 As described in Figures 13 and 14, this embodiment differs from the first embodiment in that: the disc springs 204 in the disc spring assembly are combined in a stacked and aligned manner, with a flat washer 205 disposed between the aligned disc springs 204; the stacked disc springs 204 are stacked with their openings oriented in the same direction; the aligned disc springs 204 are stacked with their openings oriented in opposite directions. The stacked disc springs 204 should be lubricated with a solid lubricant such as molybdenum dioxide to minimize friction between the sliding surfaces, reduce deviations from theoretically predicted values, and mitigate the harmful effects of heat generation on the life of the disc springs; the number of times the disc spring assembly is aligned depends on the vertical displacement requirement, while the number of times the disc spring assembly is stacked depends on the self-resetting force requirement.

[0035] Specific embodiment 3: This embodiment differs from specific embodiment 1 in that the transverse limbs of the L-shaped steel 4 are connected to the base steel plate 5 by welding or bolting. The connection method depends on the actual shear force requirements and the ease of construction operation.

[0036] Specific embodiment 4: This embodiment differs from specific embodiment 1 in that both ends of the cable 2 undergo surface strengthening treatments such as plasma, corona discharge, and oxidation to improve the bonding between the cable 2 and the vinyl ester resin 207 and to enhance the mechanical interlocking effect between the two surfaces.

[0037] Specific implementation method five: Combination Figures 6-8 Note that this embodiment differs from the first embodiment in that: the anchoring device is composed of two aluminum sleeves 201, multiple arc-shaped clips 202, an upper anchor cup 203 and a lower anchor cup 206;

[0038] The upper anchor cup 203, one of the aluminum sleeves 201 and the multiple arc-shaped clips 202 are arranged at the upper end of the disc spring group. The bottom of the upper anchor cup 203 is provided with an annular bottom plate, which is arranged in the upper end guide cylinder 301 of the disc spring group. The aluminum sleeve 201 is sleeved on the upper end of the cable 2 in the disc spring group. The aluminum sleeve 201 is arranged in the upper anchor cup 203. The multiple arc-shaped clips 202 constitute a circular tube arranged between the aluminum sleeve 201 and the upper anchor cup 203. The outer wall of the circular tube formed by the multiple arc-shaped clips 202 is a conical surface, and the outer diameter of the upper end of the outer wall of the circular tube is larger than that of the lower end.

[0039] The lower anchor cup 206, aluminum sleeve 201 and multiple arc-shaped clips 202 are arranged on the lower surface of the foundation steel plate 5. The lower anchor cup 206 is welded to the bottom of the foundation steel plate 5. The lower end of the cable 2 passes through the column foot base 3 and the foundation steel plate 5 in sequence and penetrates into the lower anchor cup 206. The aluminum sleeve 201 is sleeved on the lower end of the cable 2. Multiple arc-shaped clips 202 form a circular tube arranged between the aluminum sleeve 201 and the lower anchor cup 206. The outer wall of the circular tube formed by the multiple arc-shaped clips 202 is a conical surface, and the outer diameter of the upper end of the conical surface is smaller than the lower end.

[0040] Specific implementation method six: combination Figures 9-11 Note that this embodiment differs from the first embodiment in that the anchoring device comprises an upper anchor cup 203, a lower anchor cup 206, and a vinyl ester resin 207; the upper anchor cup 203 is disposed at the upper end of the disc spring assembly, and an annular bottom plate is disposed at the bottom of the upper anchor cup 203. The annular bottom plate is disposed within the upper guide cylinder 301 of the disc spring assembly, and the vinyl ester resin 207 is cast within the upper anchor cup 203 to bond the upper end of the cable 2 to the upper anchor cup 203;

[0041] The lower anchor cup 206 is set on the lower surface of the foundation steel plate 5, and the lower anchor cup 206 is welded to the bottom of the foundation steel plate 5. The lower end of the cable 2 passes through the column foot base 3 and the foundation steel plate 5 in sequence and penetrates into the lower anchor cup 206. Vinyl ester resin 207 is poured in the lower anchor cup 206 to bond the lower end of the cable 2 and the lower anchor cup 206.

[0042] Specific implementation method seven: combination Figure 11 Note that this embodiment differs from the fifth or sixth embodiment in that: the aluminum sleeve 201 is a round tube; the inner wall of the upper anchor cup 203 is a conical surface, and the upper end diameter of the inner wall of the upper anchor cup 203 is larger than the lower end; the inner wall of the lower anchor cup 206 is a conical surface, and the lower end diameter of the inner wall of the lower anchor cup 206 is larger than the upper end.

[0043] Specific implementation method eight: combination Figure 13 Note that this embodiment differs from Embodiments 5 or 6 in that the tapered surface of the inner wall of the upper anchor cup 203 has a 3° taper angle, while the tapered surface of the inner wall of the lower anchor cup 206 has a 3° taper angle. Furthermore, the tapered surface of the outer wall of the circular tube formed by the multiple arc-shaped clips 202 within the upper anchor cup 203 and the lower anchor cup 206 has a 2.9° taper angle. This difference in taper angle is used to reduce stress concentration on the cable 2 at the anchor point.

[0044] Specific implementation method nine: Combination Figures 1 to 8 Note that the difference between this embodiment and the first embodiment is that the installation method of the self-resetting steel column based on the recoverable functional earthquake-proof structure is:

[0045] First, the lower anchor cup 206 is welded to the lower surface of the foundation steel plate 5, and the guide cylinder 301 and the steel column 1 are welded to the same side of the column foot bottom plate 3, and then the transverse limb plate of the L-shaped steel 4 is connected to the foundation steel plate 5, and then the guide cylinder 301 and the steel column 1 are placed between the two L-shaped steels 4 and connected to the L-shaped steel 4, and finally the disc spring group is placed in the guide cylinder 301 and fixed with the two ends of the connecting cable 2 using the anchoring device; in the process of fixing the two ends of the connecting cable 2 with the anchoring device, the aluminum sleeve 201 is first sleeved on the two ends of the cable 2, and the length of the two ends of the cable 2 is reserved for clamping, and multiple arc-shaped clips 202 are placed in the upper anchor cup 203 and the lower anchor cup 206 respectively. Then, a stretching device is used to clamp the two ends of the cable 2 and stretch the cable 2 to make the cable 2 in a pre-tensioned stress state, and at the same time, the aluminum sleeves 201 at both ends of the cable 2 are pushed into the upper anchor cup 203 and the lower anchor cup 206, and finally the stretching device is released to complete the anchoring.

[0046] Specific implementation method ten: Combination Figures 1 to 5 ,9~11 explain, this embodiment differs from the specific embodiment 1 in that: the installation method of the self-resetting steel column based on the recoverable functional earthquake-proof structure is:

[0047] First, the foundation steel plate 5 is turned over, and the cable 2 is passed through the lower anchor cup 206 and the through hole 501 of the foundation steel plate in sequence. The cable 2 is then stretched by clamping both ends of the cable 2 with a stretching device to put the cable 2 into a pre-stressed state. Vinyl ester resin 207 is poured into the lower anchor cup 206. After curing, the lower anchor cup 206 is welded to the lower surface of the foundation steel plate 5.

[0048] Then, turn over the foundation steel plate 5, weld the guide cylinder 301 and the steel column 1 to the same side of the column foot bottom plate 3, and then connect the transverse limb of the L-shaped steel 4 to the foundation steel plate 5. Then place the guide cylinder 301 and the steel column 1 between the two L-shaped steels 4 and connect them to the L-shaped steels 4. Place the disc spring group in the guide cylinder 301, pass the cable 2 through the upper anchor cup 203, the bottom plate through hole 302 and the disc spring group, use a stretching device to clamp the upper end of the cable 2 and stretch the cable 2 so that the cable 2 is in a pre-tensioned state, pour vinyl ester resin into the upper anchor cup 203, release the stretching device after curing, and complete the anchoring.

[0049] Specific embodiment eleven: This embodiment differs from specific embodiment one in that: the guide cylinder 301 and the flat washer 205 are clearance-fitted; the inner diameter of the guide cylinder 301 is the sum of the outer diameter of the disc spring 204 plus twice the design deformation of the disc spring 204; the surface of the guide cylinder 301 is surface-hardened and has a hardened layer, the Rockwell hardness of the hardened layer is greater than 58, the depth of the hardened layer is not less than 0.6 mm, and the roughness of the hardened layer does not exceed 4 μm.

[0050] Specific embodiment 12: The difference between this embodiment and specific embodiment 1 is that a plastic film is arranged between the upper anchor cup 203 and the circular tube formed by the multiple arc-shaped clips 202, and a plastic film is arranged between the lower anchor cup 206 and the circular tube formed by the multiple arc-shaped clips 202; the setting of the plastic film is conducive to improving the automatic tracking between the multiple arc-shaped clips 202 and the anchor cup.

[0051] Specific embodiment thirteen: The difference between this embodiment and specific embodiment one is that: in the disc spring group, 10 disc springs 204 are arranged between adjacent flat washers 205, or the height of multiple disc springs 204 arranged between adjacent flat washers 205 is 3 times the outer diameter of the disc spring 204; to ensure stable and efficient force transmission inside the disc spring group.

Claims

1. A self-resetting steel column base based on a recoverable functional earthquake-proof structure, characterized by: The self-resetting steel column foot based on the recoverable functional earthquake-proof structure consists of a steel column (1), a column foot bottom plate (3), an L-shaped steel (4), a foundation steel plate (5) and a self-resetting device; the column foot bottom plate (3) is arranged on the upper surface of the foundation steel plate (5); the steel column (1) is an I-shaped steel, the steel column (1) is vertically arranged on the upper surface of the column foot bottom plate (3) and the steel column (1) and the column foot bottom plate (3) are vertically fixedly connected; the self-resetting device is symmetrically arranged on both sides of the web of the steel column (1) on the upper surface of the column foot bottom plate (3); the L-shaped steel (4) is arranged on both sides of the flange of the steel column (1); the same oblong bolt holes are respectively arranged on the flange of the steel column (1) and the vertical limb plate of the L-shaped steel (4) for bolting the vertical limb plate of the L-shaped steel (4) to the flange of the steel column (1); the horizontal limb plate of the L-shaped steel (4) is connected to the foundation steel plate (5); The self-resetting device is composed of a guide cylinder (301), a disc spring group, a cable (2) and an anchoring device; the disc spring group is composed of a plurality of disc springs (204) and a plurality of flat washers (205); the disc spring group is arranged in the guide cylinder (301), the cable (2) is arranged in the center of the disc spring group, the bottom plate through hole (302) on the column foot bottom plate (3) and the base steel plate through hole (501) on the base steel plate (5), and the two ends of the cable (2) are fixedly connected to the top of the disc spring group and the lower surface of the base steel plate (5) respectively through the anchoring device; the two ends of the cable (2) are fixedly connected through the anchoring device and are in a pre-tensioned stress state; the thickness of the vertical limb plate of the L-shaped steel is less than the thickness of the flange of the steel column (1); The cable (2) is an ultra-high molecular weight polyethylene cable.

2. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 1 is characterized in that: The disc springs (204) in the disc spring group are composited in a stacking manner and in a counter-stitching manner, wherein a flat washer (205) is arranged between the counter-stitched disc springs (204); the stacking manner of the disc springs (204) is that the openings of the disc springs (204) face the same direction and are stacked together; the counter-stitching manner of the disc springs (204) is that the openings of the disc springs (204) face opposite directions and are stacked together.

3. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 1 is characterized in that: The transverse limbs of the L-shaped steel (4) are connected to the base steel plate (5) by welding or bolts.

4. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 1 is characterized in that: Both ends of the cable (2) are subjected to plasma, corona discharge or oxidation surface strengthening treatment.

5. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 1 is characterized in that: The anchoring device is composed of two aluminum sleeves (201), a plurality of arc-shaped clips (202), an upper anchor cup (203) and a lower anchor cup (206); The upper anchor cup (203), one of the aluminum sleeves (201) and the plurality of arc-shaped clips (202) are arranged at the upper end of the disc spring group. The bottom of the upper anchor cup (203) is provided with an annular bottom plate, which is arranged in the upper guide cylinder (301) of the disc spring group. The aluminum sleeve (201) is sleeved on the upper end of the cable (2) in the disc spring group. The aluminum sleeve (201) is arranged in the upper anchor cup (203). The plurality of arc-shaped clips (202) form a circular tube arranged between the aluminum sleeve (201) and the upper anchor cup (203). The outer wall of the circular tube formed by the plurality of arc-shaped clips (202) is a conical surface. The outer surface of the upper end of the outer wall of the circular tube is The lower anchor cup (206), the aluminum sleeve (201) and the plurality of arc-shaped clips (202) are arranged on the lower surface of the foundation steel plate (5), the lower anchor cup (206) is welded to the bottom of the foundation steel plate (5), the lower end of the cable (2) passes through the column foot bottom plate (3) and the foundation steel plate (5) in sequence and penetrates into the lower anchor cup (206), the aluminum sleeve (201) is sleeved on the lower end of the cable (2), the plurality of arc-shaped clips (202) form a circular tube arranged between the aluminum sleeve (201) and the lower anchor cup (206), the outer wall of the circular tube formed by the plurality of arc-shaped clips (202) is a conical surface, and the outer diameter of the upper end of the conical surface is smaller than that of the lower end.

6. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 1 is characterized in that: The anchoring device is composed of an upper anchor cup (203), a lower anchor cup (206) and a vinyl ester resin (207); the upper anchor cup (203) is arranged at the upper end of the disc spring group, an annular bottom plate is provided at the bottom of the upper anchor cup (203), and the annular bottom plate is arranged in the upper end guide cylinder (301) of the disc spring group, and the vinyl ester resin (207) is poured in the upper anchor cup (203) to bond the upper end of the cable (2) and the upper anchor cup (203); The lower anchor cup (206) is provided on the lower surface of the foundation steel plate (5), and the lower anchor cup (206) is welded to the bottom of the foundation steel plate (5). The lower end of the cable (2) passes through the column foot bottom plate (3) and the foundation steel plate (5) in sequence and penetrates into the lower anchor cup (206). Vinyl ester resin (207) is poured into the lower anchor cup (206) to bond the lower end of the cable (2) and the lower anchor cup (206).

7. The self-resetting steel column base based on the recoverable function earthquake-proof structure according to claim 5 is characterized in that: The aluminum sleeve (201) is a circular tube; the inner wall of the upper anchor cup (203) is a conical surface, and the upper end of the inner wall of the upper anchor cup (203) has a larger diameter than the lower end; the inner wall of the lower anchor cup (206) is a conical surface, and the lower end of the inner wall of the lower anchor cup (206) has a larger diameter than the upper end.

8. The self-resetting steel column base based on the recoverable functional earthquake-proof structure according to claim 5 or 6, characterized in that: The cone angle of the conical surface of the inner wall of the upper anchor cup (203) is 3°, and the cone angle of the conical surface of the inner wall of the lower anchor cup (206) is 3°; the cone angle of the conical surface of the outer wall of the circular tube formed by the multiple arc-shaped clips (202) in the upper anchor cup (203) and the lower anchor cup (206) is 2.9°.

9. The self-resetting steel column base based on the recoverable function earthquake-proof structure according to claim 5 is characterized in that: The installation method of the self-resetting steel column based on the recoverable functional earthquake-proof structure is as follows: First, the anchor cup (206) is welded to the lower surface of the foundation steel plate (5), and the guide cylinder (301) and the steel column (1) are welded to the same side of the column foot bottom plate (3). Then, the transverse limb plate of the L-shaped steel (4) is connected to the foundation steel plate (5). Then, the guide cylinder (301) and the steel column (1) are placed between the two L-shaped steels (4) and connected to the L-shaped steels (4). Finally, the disc spring group is placed in the guide cylinder (301) and the two ends of the connecting cable (2) are fixed with the anchor device. After the connecting cable (2) is fixed with the anchor device, During the anchoring process, the aluminum sleeves (201) are firstly sleeved on the two ends of the cable (2), and the length of the two ends of the cable (2) is reserved for clamping. A plurality of arc-shaped clamping pieces (202) are respectively placed in the upper anchor cup (203) and the lower anchor cup (206). Then, a stretching device is used to clamp the two ends of the cable (2) to stretch the cable (2) so that the cable (2) is in a pre-tensioned stress state. At the same time, the aluminum sleeves (201) at the two ends of the cable (2) are pushed into the upper anchor cup (203) and the lower anchor cup (206). Finally, the stretching device is released to complete the anchoring.

10. The self-resetting steel column base based on the recoverable function earthquake-proof structure according to claim 6 is characterized in that: The installation method of the self-resetting steel column based on the recoverable functional earthquake-proof structure is as follows: First, the base steel plate (5) is turned over, and the cable (2) is passed through the lower anchor cup (206) and the through hole (501) of the base steel plate in sequence. The cable (2) is stretched by clamping both ends of the cable (2) with a stretching device so that the cable (2) is in a pre-tensioned state. Vinyl ester resin (207) is poured into the lower anchor cup (206), and after solidification, the lower anchor cup (206) is welded to the lower surface of the base steel plate (5); Then, the foundation steel plate (5) is turned over, and the guide cylinder (301) and the steel column (1) are welded to the same side of the column foot bottom plate (3), and then the transverse limb plate of the L-shaped steel (4) is connected to the foundation steel plate (5), and then the guide cylinder (301) and the steel column (1) are placed between the two L-shaped steels (4) and connected to the L-shaped steels (4), and the disc spring group is placed in the guide cylinder (301), and the cable (2) is passed through the upper anchor cup (203), the bottom plate through hole (302) and the disc spring group. The upper end of the cable (2) is clamped by a stretching device to stretch the cable (2) so that the cable (2) is in a pre-tensioned stress state, and vinyl ester resin is poured into the upper anchor cup (203). After solidification, the stretching device is released to complete the anchoring.

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