A high-ductility steel column base node based on a recoverable functional earthquake-resistant structure

Abstract

A high-ductility steel column base node based on a recoverable functional earthquake-proof structure includes: a support component, a central component, anchor bolts, a cover plate, a replaceable energy-absorbing device, anti-loosening bolts, and stud bolts. The support component is located at the bottom, and the upper part of the support component and the lower part of the central component are fixedly connected by stud bolts through the cover plate. Two groups of replaceable energy-absorbing devices are symmetrically arranged, and are fixedly connected to the left and right sides of the support component and the central component respectively with stud bolts. Multiple groups of anchor bolts are respectively connected to the front and back sides of the support component and the central component. Long strip holes are opened on the lower parts of both sides of the central component, the upper parts of the support component, and the middle part of the replaceable energy-absorbing device, and are fixedly connected by anti-loosening bolts. While improving the energy-absorbing capacity of the column base node and ensuring that the column base node has good earthquake resistance, it effectively reduces the repair cost and repair time of the column base node after an earthquake.

Description

Technical Field

[0001] The present invention relates to the technical field of earthquake-proof structures, and in particular to a high-ductility steel column base node based on an earthquake-proof structure with recoverable function. Background Art

[0002] Earthquakes are a natural disaster that seriously threatens the safety of human life and property. Earthquakes can cause serious damage to all kinds of buildings, leading to casualties. Investigations have found that the node area of ​​the frame structure is one of the locations that suffer the most damage. This is mainly because the load distribution at these locations is very complex under the action of an earthquake, and they are weak stress areas, so they are susceptible to damage. The nodes have important functions such as connecting the whole, transferring loads, distributing internal forces, and transitioning between layers. Once the nodes are damaged, the overall bearing capacity of the frame will rapidly decrease, and the damaged areas are difficult to repair. The functions of the buildings after the earthquake are not easy to restore, which seriously affects post-disaster reconstruction. Traditional exposed column bases are difficult to repair after being damaged under earthquake loads, and the repair cost is high. Summary of the Invention

[0003] The object of the present invention is to provide a high-ductility steel column base node based on a recoverable functional earthquake-proof structure to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A high-ductility steel column base node based on a recoverable functional earthquake-proof structure includes: a support component, a central component, an anchor bolt, a cover plate, a replaceable energy-absorbing device, an anti-loosening bolt, and a stud bolt. The support component is located at the bottom, and the upper part of the support component and the lower part of the central component are fixedly connected by stud bolts through the cover plate. Two groups of replaceable energy-absorbing devices are symmetrically arranged, and are fixedly connected to the left and right sides of the support component and the central component respectively with stud bolts. Multiple groups of anchor bolts are respectively connected to the front and back sides of the support component and the central component. Long strip holes are opened on the lower sides of the central component, the upper sides of the support component, and the middle of the replaceable energy-absorbing device, and are fixedly connected by anti-loosening bolts.

[0006] The support assembly is located below the central assembly, and the support assembly also includes a base plate, a connecting I-beam, and a supporting steel member. The supporting steel member is composed of a triangular plate and a trapezoidal plate. The triangular plate is perpendicular to the trapezoidal plate and is located at the center line of the trapezoidal plate. The supporting steel member is fixedly connected to the trapezoidal plate. The supporting steel member is symmetrically arranged on the base plate and perpendicular to the base plate. The supporting steel member is fixedly connected to the base plate. The connecting I-beam is perpendicular to the base plate and is located between two symmetrically arranged supporting steel members. The lower part of the connecting I-beam is fixedly connected to the base plate, and the two sides of the connecting I-beam are fixedly connected to the supporting steel member.

[0007] The connecting I-beam includes: a first connecting plate, a second connecting plate, a first anchor plate and a first web. The first connecting plate is parallel to the second connecting plate. The first anchor plates are symmetrically arranged on both sides of the first web and are perpendicular to the first web. The first anchor plates are perpendicular to and fixedly connected to the first connecting plate and the second connecting plate respectively. The first web is located between the first connecting plate and the second connecting plate and is perpendicular to the first connecting plate and the second connecting plate respectively.

[0008] The replaceable energy-absorbing device includes a left long plate, a middle partition, a core energy-absorbing plate, a first short plate, a right long plate and a fourth short plate. The first short plate is arranged above the left long plate, and the first short plate is parallel to the left long plate. The fourth short plate is arranged parallel to the lower side of the right long plate. The middle partition is located between the left long plate and the right long plate. The second short plate and the third short plate are arranged parallel to the upper and lower sides of the middle partition respectively.

[0009] The central component includes a second web and a second anchor plate. The central component is an I-beam structure. The two ends of the second anchor plate are vertically fixed to the two side wing plates of the central component. The side of the second anchor plate is perpendicular to and fixedly connected to the second web.

[0010] The central partition includes a central partition with holes and a central partition without holes. The central partition with holes is arranged at intervals on both sides of the central partition without holes, and is spaced apart from the central partition without holes.

[0011] The core energy consumption panel includes the upper section, the middle section and the lower section of the core energy consumption panel. The core energy consumption panel is a strip panel. Two groups of core energy consumption panels are arranged at intervals. The middle section of the core energy consumption panel is located between the gap between the middle partition with holes and the middle partition without holes.

[0012] A distance of 10 mm is reserved between the first short board and the left long board, a distance of 10 mm is reserved between the fourth short board and the right long board, a distance of 10 mm is reserved between the second short board and the middle partition, and a distance of 10 mm is reserved between the middle partition and the third short board.

[0013] The first connecting plate is symmetrically provided with first vertical strip holes at the two corners of the upper end and penetrates therethrough; the second connecting plate is symmetrically provided with second vertical strip holes at the two corners of the upper end and penetrates therethrough; the two corners of the lower left end of the central assembly are respectively provided with third vertical strip holes; the two corners of the lower right end of the central assembly are respectively provided with fourth vertical strip holes; four groups of fifth vertical strip holes are provided at the upper part of the left long plate; the middle partition plate has vertical through holes at both ends; the right long plate has a sixth strip hole; the first strip hole is aligned one by one with the two groups of fifth strip holes, the two groups of through holes and the two groups of sixth strip holes, and are fixed with anti-loosening bolts; the second strip hole is aligned one by one with the other two groups of fifth strip holes, the other two groups of through holes and the other two groups of sixth strip holes, and are fixed with anti-loosening bolts.

[0014] The upper portion of the anchor bolt is fixedly connected to the second anchor plate, and the lower portion is fixedly connected to the first anchor plate.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] 1. The present invention ensures that the central assembly has controllable swing performance under load by opening a bolt hole that is 1.5 times larger than the diameter of the bolt rod at that location in the connection area between the I-beam and the central assembly, thereby converting the static deformation mode into an overall rigid body swing mode, limiting the concentration of interlayer deformation along the height of the structure, and reducing the structural interlayer deformation demand and internal force response. The entire cross-section of the middle section of the core energy-absorbing plate in the replaceable energy-absorbing device participates in plastic deformation, so that this column foot node has higher ductility, thereby reducing the damage to the structural components and ensuring that the structure has a certain functional recoverability under load.

[0017] 2. The present invention combines multiple energy dissipation systems such as replaceable energy dissipation devices and anchor bolt energy dissipation, so that the plastic deformation generated on the column base node under the action of an earthquake will first be induced to the replaceable energy dissipation device and the anchor bolt. Secondly, when the column rotates under the action of the load, the anchor bolts of the first anchor plate and the second anchor plate will suppress the excessive rotation of the central component, which can effectively reduce the residual deformation of the central component, and ensure that the central component and the support component always maintain an elastic state or only cause minor damage under the action of small and medium earthquakes, meeting the healthy state for continued use, thereby achieving rapid post-earthquake repair by replacing energy dissipation devices and anchor bolts with small size and low manufacturing requirements. These components are arranged in non-unidirectional directions in the column base, so they will not be destroyed in a concentrated manner, so the use function of the column base node will not be interrupted due to the destruction of a certain energy dissipation device. Therefore, the column base node has good structural redundancy.

[0018] 3. In the present invention, multiple components are arranged to be replaceable, and the main energy-consuming components such as replaceable energy-consuming devices, anchor bolts and cover plates are all replaceable. Moreover, these components have a simple structural form and can be prefabricated in the factory in advance. The processing technology is relatively simple, and after processing, they are transported to the construction site for assembly and construction. This will greatly reduce the manufacturing difficulty and processing cost of each component, improve construction efficiency, and each component can be quickly replaced after being damaged. At the same time, the position of the replaceable components is concentrated in the column base, and the replacement of these components after damage is fast and quick, which can greatly reduce the overall maintenance time of the structure and the interruption time of the structural function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 This is a schematic diagram of the assembly and disassembly of the device of the present invention;

[0021] Figure 3Schematic diagram of the support assembly structure in the device of the present invention;

[0022] Figure 4 Schematic diagram of the structure of the replaceable energy-consuming device in the device of the present invention;

[0023] Figure 5 This is a schematic diagram of the assembly and disassembly of the replaceable energy consuming device in the device of the present invention;

[0024] Figure 6 This is a schematic structural diagram of the cover plate of the device of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the central component of the device of the present invention;

[0026] Figure 8 It is a structural diagram of the components of the middle partition board;

[0027] Figure 9 It is a structural diagram of the core energy consumption panel;

[0028] Figure 10 This is a structural diagram of the second short board.

[0029] In the figure: 1. Support assembly; 11. Bottom plate; 12. Connecting I-beam; 13. Support steel; 14. First anchor plate; 15. First web; 121. First connecting plate; 122. Second connecting plate; 141. First anchor hole; 151. First fixing hole; 1211. First strip hole; 1212. First connecting hole; 1221. Second strip hole; 1222. Second connecting hole; 2. Central assembly; 21. Third strip hole; 22. Fourth connecting hole; 23. Second web; 231. Second fixing hole; 24. Third connecting hole; 25. Fourth strip hole; 26. Second anchor plate; 261. Second anchor hole; 3. Anchor bolt; 4. Cover plate; 41. Cover plate Lower connecting hole; 42. Connecting hole on the cover plate; 5. Replaceable energy absorbing device; 51. Left long plate; 52. Middle partition; 53. Core energy absorbing plate; 54. First short plate; 55. Right long plate; 56. Second short plate; 57. Third short plate; 58. Fourth short plate; 511. Fifth connecting hole; 512. Fifth strip hole; 521. Through hole; 522. Middle partition with hole plate; 523. Middle partition without hole plate; 531. Sixth connecting hole; 532. Upper section of core energy absorbing plate; 533. Middle section of core energy absorbing plate; 534. Lower section of core energy absorbing plate; 541. Seventh connecting hole; 551. Sixth strip hole; 552. Eighth connecting hole; 6. Anti-loosening bolt; 7. Stud bolt. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] For specific examples, please refer to Figures 1 to 7 A high-ductility steel column base node based on a recoverable functional seismic structure includes: a support component 1, a central component 2, an anchor bolt 3, a cover plate 4, a replaceable energy dissipation device 5, an anti-loosening bolt 6, and a stud bolt 7. The support component 1 is located at the bottom, and the upper part of the support component 1 and the lower part of the central component 2 are fixedly connected by the stud bolt 7 through the cover plate 4. The replaceable energy dissipation device 5 is symmetrically arranged in two groups, which are fixedly connected to the left and right sides of the support component 1 and the central component 2 with stud bolts 7 respectively. Multiple groups of anchor bolts 3 are respectively connected to the front and back sides of the support component 1 and the central component 2.

[0032] The support assembly 1 includes a base plate 11, a connecting I-beam 12, and a supporting steel member 13. The supporting steel member 13 includes a triangular plate and a trapezoidal plate. The triangular plate is perpendicular to the trapezoidal plate and is located at the center line of the trapezoidal plate and is fixedly connected to the trapezoidal plate. The connection method is welding. The supporting steel members 13 are symmetrically and spaced apart on the base plate 11 and perpendicular to the base plate 11. The supporting steel members 13 are fixedly connected to the base plate 11. The connection method is welding. The supporting steel members 13 have great rigidity and can effectively ensure the stability of the bottom. The connecting I-beam 12 is arranged perpendicular to the base plate 11 and is located between the two symmetrically arranged supporting steel members 13. The lower part of the connecting I-beam 12 is fixedly connected to the base plate 11, and the two sides of the connecting I-beam 12 are fixedly connected to the supporting steel members 13. The connection method is welding. Long strip holes are provided on the lower parts of both sides of the central assembly 2, the upper sides of the support assembly 1, and the left and right long plates of the replaceable energy dissipation device 5, and are fixedly connected by anti-loosening bolts 6.

[0033] The connecting I-beam 12 includes: a first connecting plate 121, a second connecting plate 122, a first anchor plate 14 and a first web 15, wherein the first connecting plate 121 has two symmetrical and through-opening vertical first strip holes 1211 at the two corners of the upper end, the first connecting plate 121 is located below the first strip holes 1211 and has four groups of first connecting holes 1212 centered thereon, and the four groups of first connecting holes 1212 are distributed in a rectangular manner, the second connecting plate 122 has two symmetrical and through-opening vertical second strip holes 1221 at the two corners of the upper end, the second connecting plate 122 is located below the second strip holes 1221 and has four groups of second connecting holes 1222 centered thereon, and the four groups of second connecting holes 12 22 is distributed in a rectangular shape, the first connecting plate 121 is parallel to the second connecting plate 122, the first web 15 is located between the first connecting plate 121 and the second connecting plate 122, and is respectively perpendicular to the first connecting plate 121 and the second connecting plate 122. Four groups of first fixing holes 151 distributed in a rectangular shape are opened on the first web 15, and the first anchoring plate 14 is symmetrically arranged on both sides of the first web 15, and the side is vertically fixed to the first web 15. Two groups of first anchoring holes 141 are distributed at intervals on the first anchoring plate 14, and the two ends of the first anchoring plate 14 are respectively perpendicular and fixedly connected to the first connecting plate 121 and the second connecting plate 122, and the connection method is welding.

[0034] The replaceable energy dissipation device 5 includes: a left long plate 51, a middle partition plate 52, a core energy dissipation plate 53, a first short plate 54, a right long plate 55 and a fourth short plate 58. The first short plate 54 is arranged above the left long plate 51, and the first short plate 54 is parallel to the left long plate 51. Four groups of fifth connecting holes 511 are opened at equal distances in the center of the lower part of the left long plate 51, and the fifth connecting holes 511 are distributed in a rectangular manner. Four groups of vertical fifth strip holes 512 are opened on the upper part of the left long plate 51, and the fifth strip holes 512 are distributed in a rectangular manner. Four groups of seventh connecting holes 541 are opened in the center of the first short plate 54, and the seventh connecting holes 541 are distributed in a rectangular manner. Four groups of eighth connecting holes 552 are opened in the center of the upper part of the right long plate 55, and four groups of sixth strip holes 552 are opened below the eighth connecting hole 552. 51. A fourth short plate 58 is arranged parallel to the lower side of the right long plate 55. Four groups of connecting holes are opened in the center of the fourth short plate 58 in a rectangular distribution. The middle partition plate 52 is located between the left long plate 51 and the right long plate 55. The second short plate 56 and the third short plate 57 are respectively arranged parallel to each other on the upper and lower sides of the middle partition plate 52. The middle partition plate 52 includes a middle partition plate with holes 522 and a middle partition plate without holes 523. The middle partition plate with holes 522 are arranged at intervals on both sides of the middle partition plate without holes 523, and the interval is the same as the width of the middle section 533 of the core energy absorption plate. Vertical through holes 521 are respectively opened at both ends of the middle partition plate with holes 522. The through holes 521 on the two middle partition plate with holes 522 are aligned one by one with the fifth strip hole 512 on the left long plate 51 and the sixth strip hole 551 on the right long plate 55.

[0035] The core energy consumption plate 53 is arranged in two groups at intervals. The middle section 533 of the core energy consumption plate is located between the gap between the middle partition plate 522 with holes and the middle partition plate 523 without holes. The core energy consumption plate 53 is a strip plate, including the core energy consumption plate upper section 532, the core energy consumption plate middle section 533, and the core energy consumption plate lower section 534 connected in sequence. The core energy consumption plate upper section 532 and the core energy consumption plate lower section 534 are both provided with a sixth connecting hole 531 with a collinear upper and lower axis. The core energy consumption plate upper section 532 is located below the second short plate 56. The core energy consumption plate lower section 534 is provided with a sixth connecting hole 531 with a collinear upper and lower axis. Segment 534 is located above the third short plate 57. Two grooves are provided in the middle of the second short plate 56. Their shapes are the same as the connecting sections at both ends of the core energy consumption plate 53, and are used to embed and connect the core energy consumption plate 53. Two grooves are provided in the middle of the third short plate 57. Their shapes are the same as the connecting sections at both ends of the core energy consumption plate 53, and are used to embed and connect the core energy consumption plate 53. The middle section 533 of the core energy consumption plate mainly plays a role in plastic deformation and is the core energy consumption section. The upper section 532 of the core energy consumption plate and the lower section 534 of the core energy consumption plate play a role in connecting with other components.

[0036] The upper portion of the cover plate 4 is provided with a plurality of groups of cover plate connection holes 42 , and the lower portion is provided with a plurality of groups of cover plate lower connection holes 41 . The cover plate connection holes 42 and the cover plate lower connection holes 41 are both distributed in a rectangular shape.

[0037] The central component 2 includes a second web 23 and a second anchor plate 26. The central component 2 is an I-beam structure. A vertical third strip hole 21 is respectively opened at the two corners of the lower left end. Four groups of third connecting holes 24 are opened above the third strip hole 21. The third connecting holes 24 are distributed in a rectangular shape. A vertical fourth strip hole 25 is respectively opened at the two corners of the lower right end of the central component 2. Four groups of fourth connecting holes 22 are opened in the center above the fourth strip hole 25. The fourth connecting holes 22 are distributed in a rectangular shape. Four groups of second fixing holes 231 are opened in the center of the lower part of the second web 23, and the second fixing holes 231 are distributed in a rectangular shape. The second anchor plates 26 are symmetrically arranged on both sides of the second web 23 of the central component 2, and are perpendicular to the central component 2. The two ends of the second anchor plates 26 are vertically fixed to the two side wings of the central component 2 by welding. The side of the second anchor plate 26 is perpendicular to the second web 23 and fixedly connected. Two groups of second anchor holes 261 are opened on the second anchor plate 26 at intervals.

[0038] Furthermore, multiple groups of connection holes 41 under the cover plate are aligned one by one with multiple groups of first fixing holes 151 and then fixedly connected with stud bolts 7, multiple groups of connection holes 42 on the cover plate are aligned one by one with multiple groups of second fixing holes 231 on the second web 23 and then fixedly connected with stud bolts 7, the first anchoring holes 141 and the second anchoring holes 261 on the first anchoring plate 14 and the second anchoring plate 26 are aligned up and down, and multiple groups of anchor bolts 3 are respectively inserted and fixed in their respective corresponding first anchoring holes 141 and second anchoring holes 261. This arrangement will suppress excessive rotation of the central assembly when the column rotates under load, effectively reduce the residual deformation of the central assembly, and provide energy dissipation capacity when the central assembly rotates around the weak axis under load.

[0039] Furthermore, a distance of 10 mm is reserved between the first short plate 54 and the left long plate 51, a distance of 10 mm is reserved between the fourth short plate 58 and the right long plate 55, a distance of 10 mm is reserved between the second short plate 56 and the middle partition 52, and a distance of 10 mm is reserved between the middle partition 52 and the third short plate 57, so that the core energy dissipation plate 53 has sufficient axial deformation space and the ability of the core energy dissipation section to participate in plastic deformation. The through hole 521 on the middle partition 52 is connected to the fifth strip hole 512 on its left side and the fifth strip hole 512 on its right side. The sixth strip holes 551 are aligned one by one, the sixth connecting holes 531 at both ends of the two groups of core energy absorbing plates 53 are aligned one by one with the connecting holes on the second short plate 56 and the connecting holes on the third short plate 57 respectively, the eighth connecting hole 552, the sixth connecting hole 531, and the seventh connecting hole 541 are aligned one by one, the fifth connecting hole 511, the sixth connecting hole 531, and the connecting holes on the fourth short plate 58 are aligned one by one, and multiple groups of anti-loosening bolts 6 pass through their corresponding fifth strip holes 512, through holes 521, and sixth strip holes 551 respectively.

[0040] The seventh connection hole 541 on the right side of the replaceable energy consumption device 5 on one side is aligned one by one with the third connection hole 24, the fifth strip hole 512 is aligned one by one with the third strip hole 21 and the second strip hole 1221, and the fifth connection hole 511 is aligned one by one with the second connection hole 1222. The seventh connection hole 541 on the right side of the replaceable energy consumption device 5 on the other side is aligned one by one with the fourth connection hole 22, the fifth strip hole 512 is aligned one by one with the fourth strip hole 25 and the first strip hole 1211, and the fifth connection hole 511 is aligned one by one with the first connection hole 1212.

[0041] The left long plate 51, the middle partition 52, the core energy consuming section of the core energy consuming plate 53, and the right long plate 55 are fixedly connected. The middle section of the replaceable energy consuming device 5 is fixedly connected to the support assembly 1 and the central assembly 2 at the same time. The first short plate 54, the second short plate 56, the connecting section at the upper end of the core energy consuming plate 53 and the right long plate 55 are fixedly connected. The upper section of the replaceable energy consuming device 5 is fixedly connected to the central assembly 2. The third short plate 57, the fourth short plate 58, the connecting section at the lower end of the core energy consuming plate 53 and the left long plate 51 are fixedly connected. The lower end of the replaceable energy consuming device 5 is fixedly connected to the support assembly 1.

[0042] Preferably, all the strip-shaped holes are identical and are connected using anti-loosening bolts 6. The sizes of the connecting holes and the fixing holes are identical, which facilitates installation and replacement of parts.

[0043] Furthermore, the hole diameters of the first fixing hole 151 and the second fixing hole 231 at the first web 15 and the second web 23 are both 1.5 times the diameter of the stud bolt 7, thereby ensuring that the central assembly 2 has swing performance under the action of an earthquake, which can effectively reduce the inter-layer deformation requirements and internal force response of the structure, and effectively reduce the damage to the structural components.

[0044] When a medium or small earthquake occurs, the present invention is subjected to various forces generated by the vibration, the central component 2 begins to shake, and a slight relative displacement occurs between the central component 2, the connecting I-beam 12, and the replaceable energy dissipation device 5. The middle section 533 of the core energy dissipation plate 53 produces plastic deformation to dissipate energy. The middle partition plate with holes 522, the middle partition plate without holes 523 and the left long plate 51, the core energy dissipation plate 53, and the right long plate 55 produce friction to dissipate energy. The core energy dissipation plate 53 has sufficient axial deformation space and the ability of the entire cross section of the core energy dissipation section to participate in plastic deformation. , together with the anchor bolt 3, part of the force originally acting on the support component 1 and the central component 2 is transferred to the replaceable energy-absorbing component 5 and the anchor bolt 3. The replaceable energy-absorbing device 5 can also consume energy by friction while plastically deforming, consuming part of the force generated by the vibration, protecting the support component 1 and the central component 2 so that they are not damaged or only slightly damaged. After the earthquake, only the low-cost replaceable energy-absorbing component 5 and the anchor bolt 3 need to be replaced to meet the requirements of reuse, which greatly improves the efficiency of recovery and avoids the time and financial consumption caused by replacing the entire component.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high ductility steel column base node based on a recoverable functional earthquake-proof structure, characterized in that: include: A support assembly (1), a central assembly (2), an anchor bolt (3), a cover plate (4), a replaceable energy dissipation device (5), an anti-loosening bolt (6), and a stud bolt (7). The support assembly (1) is located at the bottom, and the upper part of the support assembly (1) and the lower part of the central assembly (2) are fixedly connected by the stud bolt (7) through the cover plate (4). Two groups of replaceable energy dissipation devices (5) are symmetrically arranged and fixedly connected to the left and right sides of the support assembly (1) and the central assembly (2) by anti-loosening bolts (6). Multiple groups of anchor bolts (3) are respectively connected to the front and rear sides of the support assembly (1) and the central assembly (2). Long strip holes are opened on the lower parts of both sides of the central assembly (2), the upper parts of the support assembly (1), and the middle part of the replaceable energy dissipation device (5), and are fixedly connected by anti-loosening bolts (6). The replaceable energy dissipation device (5) comprises a left long plate (51), a middle partition plate (52), a core energy dissipation plate (53), a first short plate (54), a right long plate (55) and a fourth short plate (58), wherein the first short plate (54) is arranged above the left long plate (51), and the first short plate (54) is parallel to the left long plate (51), and the fourth short plate (58) is arranged parallel to the right long plate (55), and the middle partition plate (52) is located between the left long plate (51) and the right long plate (55), and the second short plate (56) and the third short plate (57) are arranged parallel to each other above and below the middle partition plate (52); The middle partition (52) includes a middle partition perforated plate (522) and a middle partition non-perforated plate (523), wherein the middle partition perforated plate (522) is spaced apart on both sides of the middle partition non-perforated plate (523), and both are spaced apart from the middle partition non-perforated plate (523); The core energy consumption plate (53) includes an upper core energy consumption plate section (532), a middle core energy consumption plate section (533), and a lower core energy consumption plate section (534). The core energy consumption plate (53) is a strip plate. Two groups of core energy consumption plates (53) are arranged at intervals. The middle core energy consumption plate section (533) is located between the gap between the middle partition plate with holes (522) and the middle partition plate without holes (523). The upper core energy consumption plate section (532) and the lower core energy consumption plate section (534) are both provided with a sixth connecting hole (531) with a collinear upper and lower axis. The upper core energy consumption plate section (532) 532) is located below the second short plate (56), the lower section of the core energy consumption plate (534) is located above the third short plate (57), and two grooves are provided in the middle of the second short plate (56), which are the same in shape as the connecting sections at both ends of the core energy consumption plate (53) and are used to embed and connect the core energy consumption plate (53). Two grooves are provided in the middle of the third short plate (57), which are the same in shape as the connecting sections at both ends of the core energy consumption plate (53) and are used to embed and connect the core energy consumption plate (53). The middle section (533) of the core energy consumption plate mainly plays a role in plastic deformation and is the core energy consumption section.

2. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 1, characterized in that: The support assembly (1) is located below the central assembly (2). The support assembly (1) further includes a base plate (11), a connecting I-beam (12), and a supporting steel member (13). The supporting steel member (13) is composed of a triangular plate and a trapezoidal plate. The triangular plate is perpendicular to the trapezoidal plate and is located at the center line of the trapezoidal plate. The triangular plate is fixedly connected to the trapezoidal plate. The supporting steel member (13) is symmetrically arranged on the base plate (11) and is perpendicular to the base plate (11). The supporting steel member (13) is fixedly connected to the base plate. The connecting I-beam (12) is perpendicular to the base plate (11) and is located between two symmetrically arranged supporting steel members (13). The lower part of the connecting I-beam (12) is fixedly connected to the base plate (11), and both sides of the connecting I-beam (12) are fixedly connected to the supporting steel member (13).

3. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 2, characterized in that: The connecting I-beam (12) comprises: a first connecting plate (121), a second connecting plate (122), a first anchoring plate (14) and a first web (15), wherein the first connecting plate (121) is parallel to the second connecting plate (122), the first anchoring plate (14) is symmetrically arranged on both sides of the first web (15) and is perpendicular to the first web (15), the first anchoring plate (14) is perpendicular to and fixedly connected to the first connecting plate (121) and the second connecting plate (122), respectively, and the first web (15) is located between the first connecting plate (121) and the second connecting plate (122), and is perpendicular to the first connecting plate (121) and the second connecting plate (122).

4. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 3, characterized in that: The central component (2) comprises a second web (23) and a second anchor plate (26). The central component (2) is an I-beam structure. Both ends of the second anchor plate (26) are vertically fixed to the two side wing plates of the central component (2). The side of the second anchor plate (26) is vertically and fixedly connected to the second web (23).

5. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 1, characterized in that: A distance of 10 mm is reserved between the first short plate (54) and the left long plate (51), a distance of 10 mm is reserved between the fourth short plate (58) and the right long plate (55), a distance of 10 mm is reserved between the second short plate (56) and the middle partition (52), and a distance of 10 mm is reserved between the middle partition (52) and the third short plate (57).

6. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 3, characterized in that: The first connecting plate (121) has two symmetrical and through-going vertical first strip holes (1211) at the two corners of the upper end, the second connecting plate (122) has two symmetrical and through-going vertical second strip holes (1221) at the two corners of the upper end, the central component (2) has two vertical third strip holes (21) at the two corners of the lower left end, the central component (2) has two vertical fourth strip holes (25) at the two corners of the lower right end, the left long plate (51) has four groups of vertical fifth strip holes (512) at the upper part, the middle partition has a perforated plate (52 2) A vertical through hole (521) is opened at each end, a sixth strip hole (551) is opened at the lower portion of the right long plate (55), the first strip hole (1211) and the two groups of fifth strip holes (512), the two groups of through holes (521), and the two groups of sixth strip holes (551) are aligned one by one and fixedly connected with anti-loosening bolts (6), the second strip hole (1221) and the other two groups of fifth strip holes (512), the other two groups of through holes (521), and the other two groups of sixth strip holes (551) are aligned one by one and fixedly connected with anti-loosening bolts (6).

7. The high-ductility steel column base node based on a recoverable functional earthquake-proof structure according to claim 4, characterized in that: The upper portion of the anchor bolt (3) is fixedly connected to the second anchor plate (26), and the lower portion is fixedly connected to the first anchor plate (14).

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