A replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure

Abstract

The invention relates to the technical field of earthquake resistance of building engineering, and in particular to a replaceable energy absorbing device applied to the core stress node domain of a steel frame structure, comprising a cover plate, a partition plate, a core energy absorbing plate, a pad plate, a filling plate and a fastener; the cover plate, the core energy absorbing plate and the pad plate are all provided with two, the two ends of the core energy absorbing plate are aligned and arranged at intervals, the two cover plates are arranged on both sides of the core energy absorbing plate, the two pad plates are arranged on both sides of the core energy absorbing plate, the pad plate on one side of the core energy absorbing plate is arranged above the cover plate, and the pad plate on the other side is arranged below the cover plate, the partition plate is arranged in the middle of the core energy absorbing plate, a plurality of fasteners are provided, and the plurality of fasteners pass through the cover plate, the partition plate, the core energy absorbing plate and the pad plate one by one to fix them to the core stress node of the building structure, the device can induce the main damage generated inside the building structure to the core energy absorbing plate during an earthquake, the core energy absorbing plate generates plastic deformation to consume energy, and the damaged core energy absorbing plate can be replaced after the earthquake to realize the function of the device returning to normal.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake resistance of building engineering, and in particular to a replaceable energy dissipation device applied to a core stress node area of ​​a steel frame structure. Background Art

[0002] Traditional building seismic design focuses on "no damage in small earthquakes, repairable in medium earthquakes, and no collapse in large earthquakes". The core of this idea is that buildings are generally not damaged after being subjected to frequent earthquakes; the main bearing structure of the building will not be seriously damaged after being subjected to a fortification intensity earthquake, and the damaged parts can be restored to their functions through general repairs; and the building structure can be seriously damaged after being subjected to a rare earthquake, but the building structure as a whole will not collapse.

[0003] The traditional ductile seismic design method is based on the idea that under the action of seismic loads, some non-main ductile components first dissipate seismic energy through plastic deformation, thereby delaying and reducing the damage to the main load-bearing components. Researchers have developed various energy-absorbing connections and energy-absorbing devices to repair and replace damaged components in severely damaged main structures of buildings or in some special locations after an earthquake.

[0004] There are bound to be many differences in the forms of structural damage in earthquake zones, and it is impossible to guarantee that all buildings will be able to withstand a major earthquake. The recovery of structural functions under earthquake loads has become an important development trend in current earthquake-resistant design, and replacing damaged components is one of the important ways to achieve functional recovery.

[0005] Steel frame structures are currently widely used in buildings, and corresponding replaceable energy dissipation devices applied to the core load-bearing components of steel structures after earthquakes have also been further developed. Existing replaceable energy dissipation devices (such as metal plates or dampers) applied to steel frame structures are prone to external buckling when repeatedly stressed and compressed during earthquakes, losing their energy dissipation capacity, causing the bearing capacity of the core load-bearing nodes of the building structure (such as column bases or beams and columns) to decrease, and their energy dissipation capacity is not strong under large loads, and the earthquake resistance of the building is greatly weakened. It is difficult to concentrate the deformation and damage of the structure on the energy dissipation devices, and they cannot effectively protect the core load-bearing nodes of the building structure.

[0006] Therefore, the present invention provides a replaceable energy dissipation device applied to the core stress node area of ​​the steel frame structure to solve the above problems. Summary of the invention

[0007] In view of the above problems, the present invention provides a replaceable energy dissipation device applied to the core stress node area of ​​the steel frame structure.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows: a replaceable energy dissipation device applied to the core force node domain of a steel frame structure, comprising a cover plate, a partition plate, a core energy dissipation plate, a pad plate, a filling plate and a fastener; two of the cover plate, the core energy dissipation plate, the pad plate and the filling plate are each provided, the two ends of the two core energy dissipation plates are aligned and arranged at intervals, the two cover plates are arranged on both sides of the core energy dissipation plate, the two pad plates are arranged on both sides of the core energy dissipation plate, the pad plate on one side of the core energy dissipation plate is arranged above the cover plate, and the pad plate on the other side is arranged below the cover plate; the two filling plates are respectively embedded and connected with the two ends of the core energy dissipation plate, and the partition plate is arranged in the middle of the core energy dissipation plate; a plurality of fasteners are provided, and the plurality of fasteners pass through the cover plate, the partition plate, the core energy dissipation plate and the pad plate one by one and are fixed on the core force node of the building structure.

[0009] In an optional embodiment, the core energy absorbing panel includes an energy absorbing section and a connecting end; the energy absorbing section is a rectangular plate, and the connecting end is a rectangular plate respectively arranged at the upper and lower ends of the energy absorbing section, the width of the connecting end is greater than the width of the energy absorbing section, and the connection between the connecting end and the energy absorbing section extends into a trapezoid; two second circular holes are arranged through the connecting end, and the two second circular holes are arranged at intervals along the connecting end.

[0010] In an optional embodiment, the partition includes a first partition and a second partition, two first partitions are provided, respectively located on two non-adjacent sides of the core energy absorbing plate, each of the first partitions is provided with two fourth circular holes, and the two fourth circular holes are arranged at intervals along the first partition; the second partition is free to move in the middle gap between the adjacent sides of the two core energy absorbing plates, and the two sides of the second partition are abutted against the adjacent sides of the two core energy absorbing plates.

[0011] In an optional embodiment, two grooves are provided at one end of the filling plate, and the two grooves are respectively connected to two connecting ends located at the same end of the two energy absorbing sections, one of the filling plates is embedded and connected to the upper end of the core energy absorbing plate, and the other filling plate is embedded and connected to the lower end of the core energy absorbing plate.

[0012] In an optional embodiment, a 10mm gap is reserved between one end of the pad and one end of the first oblong hole set in the cover plate, a 10mm gap is reserved between the upper end of the partition and the lower end of the filling plate located above the core energy absorbing plate, and a 10mm gap is reserved between the lower end of the partition and the upper end of the filling plate located below the core energy absorbing plate.

[0013] In an optional embodiment, four first circular holes are opened at one end of the cover plate, and four first oblong holes are opened at the other end of the cover plate, and the four first circular holes and the four first oblong holes are arranged in a rectangular shape; the two cover plates are arranged in opposite directions along the axial direction, and the first oblong holes on the two cover plates correspond to each other one by one.

[0014] In an optional embodiment, the pad is a rectangular plate, and a plurality of third circular holes are formed on the pad, wherein four third circular holes are provided and the four third circular holes are arranged in a rectangular shape.

[0015] In an optional embodiment, the third circular hole on the pad, the second circular hole on the connecting end and the first circular hole on the cover are equal in size and correspond one to one; the fourth circular hole on the first partition plate corresponds one to one to the first oblong hole on the cover plate.

[0016] In an optional embodiment, the smooth end of the filling plate is aligned with one end of the cover plate where the first circular hole is provided and one end of the pad plate away from the cover plate.

[0017] In an optional embodiment, the fastener includes a first bolt and a second bolt; eight first bolts are provided, and the eight first bolts pass through the first circular hole, the second circular hole and the third circular hole one by one to fix the cover plate, the core energy absorption plate and the pad; four second bolts are provided, and the four second bolts pass through the first oblong hole and the fourth circular hole one by one to fix the cover plate and the partition.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The replaceable energy dissipation device applied to the core stress node area of ​​the steel frame structure described in the present invention can first induce plastic deformation to the core energy dissipation plate to protect the core stress node of the building structure; under the action of earthquake load, the main bearing structure of the building drives the core energy dissipation plate to produce displacement, and the plastic deformation of the core energy dissipation plate caused by the displacement will play a role in dissipating earthquake energy, so that the core stress node of the building structure can maintain elasticity or only produce slight plastic deformation, and the plastic deformation caused by the tensile or compression effect of the core energy dissipation plate will play an energy dissipation role, which is beneficial to improve the seismic resistance and seismic toughness of the main bearing structure connected to the device under earthquake action.

[0020] (2) The core energy-absorbing panels in the device can be flexibly adjusted according to actual engineering needs to produce different energy-absorbing effects and adapt to different main bearing structures, which is beneficial to protecting the main bearing structure of the building connected to the device to maintain an elastic state under the action of seismic loads.

[0021] (3) When in use, the device can be attached to the core stress nodes of the building structure to improve the stiffness of the core stress nodes of the building structure. Generally, the device can be arranged in two directions on the core stress nodes of the building structure. Taking the column foot as an example, the device is arranged on the outer side of the flange plates on both sides of the column at the column foot. When the column rotates due to earthquake load, the energy dissipation device arranged on the outer side of the flange plate is subjected to tension on one side and compression on the other side. The tension and compression effects of the energy dissipation plates on both sides can provide a certain resistance moment for the column, which is beneficial to improving the stiffness of the column.

[0022] (4) The core energy-absorbing plate in the device is very easy to replace after being damaged; the cover plate, partition plate, pad plate and core energy-absorbing plate in the device are connected by fasteners to produce a restraining effect. Other non-energy-absorbing components except the core energy-absorbing plate have sufficient activity space under the action of an earthquake, are not prone to plastic deformation, and generally do not affect the main bearing structure. Therefore, after being damaged by an earthquake load, it is generally only necessary to replace the core energy-absorbing plate to restore the normal energy-absorbing function of the device. The replacement work is simple and easy to operate.

[0023] (5) The device has strong independence; when in use, it can be used as an additional component of the core stress node of the building structure to increase the energy consumption capacity of the core stress node of the building structure. After damage, the core energy consumption panel can be quickly replaced, and after the device is removed, the normal function of the core stress node of the building structure is not affected.

[0024] (6) The device has superior mechanical properties and strong energy dissipation capacity. The cover plate can constrain the out-of-plane buckling of the core energy dissipation plate, the partition plate can constrain the lateral displacement of the core energy dissipation plate, and the setting of the oblong hole provides space for the axial displacement of the core energy dissipation plate, thereby increasing its ductile deformation capacity. Under the constraint of the external components of the core energy dissipation plate, the axial full cross-section of the energy dissipation section of the core energy dissipation plate participates in the plastic deformation, which makes the device have superior mechanical properties and more significant energy dissipation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the decomposed structure of an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of a cover plate according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of a partition according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of a core energy consumption board according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of a pad according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of a filling plate according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Cover plate; 11. First circular hole; 12. First oblong hole; 2. Partition plate; 21. First partition plate; 211. Fourth circular hole; 22. Second partition plate; 3. Core energy dissipation plate; 31. Energy dissipation section; 32. Connecting end; 321. Second circular hole; 4. Pad plate; 41. Third circular hole; 5. Filling plate; 6. Fastener; 61. First bolt; 62. Second bolt. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0036] In the following description of the invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. The term "connection" only indicates the connection between devices and has no special meaning.

[0037] For specific embodiments, see Figure 1-Figure 7 The present invention provides a replaceable energy dissipation device applied to the core stress node domain of a steel frame structure, which is used to protect the column foot or the core stress node of a beam column under the action of an earthquake, and includes a cover plate 1, a partition plate 2, a core energy dissipation plate 3, a pad 4, a filling plate 5 and a fastener 6; the cover plate 1, the core energy dissipation plate 3, the pad 4 and the filling plate 5 are each provided with two, the two ends of the two core energy dissipation plates 3 are aligned and arranged at intervals, the two cover plates 1 are respectively located on both sides of the core energy dissipation plate 3, the two pads 4 are respectively located on both sides of the core energy dissipation plate 3, the pad 4 on one side of the core energy dissipation plate 3 is arranged above the cover plate 1, and the pad 4 on the other side is arranged below the cover plate 1; the two filling plates 5 are respectively located at both ends of the core energy dissipation plate 3, and the partition plate 2 is arranged in the middle of the core energy dissipation plate 3; a plurality of fasteners 6 are provided, which pass through the cover plate 1, the core energy dissipation plate 3 and the pad 4 one by one, so that they are fixed on the column foot or the core stress node of the beam column.

[0038] The cover plate 1 is used to restrain the out-of-plane buckling of the core energy absorption plate 3 under the action of seismic load. The cover plate 1 is a rectangular plate. A plurality of first circular holes 11 are opened at one end of the cover plate 1, and a plurality of first oblong holes 12 are opened at the other end of the side of the cover plate 1. The first circular holes 11 and the first oblong holes 12 are used to pass the fastener 6; four first circular holes 11 are arranged, and the four first circular holes 11 are arranged in a rectangular shape; four first oblong holes 12 are arranged, and the four first oblong holes 12 are arranged in a rectangular shape; the two cover plates 1 are arranged in opposite directions along the axial direction, and the first oblong holes 12 on the two cover plates 1 correspond to each other one by one.

[0039] The partition 2 is used to constrain the lateral displacement of the core energy absorbing plate 3 under the action of seismic load. The partition 2 includes a first partition 21 and a second partition 22. Two first partitions 21 are provided. The two first partitions 21 are respectively located on the two non-adjacent sides of the two core energy absorbing plates 3, and are respectively abutted against the non-adjacent sides of the two core energy absorbing plates 3. Each of the first partitions 21 is provided with a fourth circular hole 211. Two fourth circular holes 211 are provided. The two fourth circular holes 211 are spaced apart along the first partition 21. The fourth circular holes 211 correspond one-to-one to the first oblong holes 12 on the cover plate 1. The second partition 22 is located in the middle gap between the two adjacent sides of the two core energy absorbing plates 3, and the two sides of the second partition 22 abut against the adjacent sides of the two core energy absorbing plates 3.

[0040] The core energy absorbing plate 3 is used to dissipate earthquake energy. The core energy absorbing plate 3 includes an energy absorbing section 31 and a connecting end 32. The energy absorbing section 31 can be a rectangular plate made of metal. The thickness of the core energy absorbing plate 3 can be flexibly selected according to actual engineering requirements. Its thickness is 2 mm less than that of the partition 2. Two connecting ends 32 are provided, which are respectively arranged at the upper and lower ends of the energy absorbing section 31. The connecting end 32 is a rectangular plate. The width of the connecting end 32 is greater than the width of the energy absorbing section 31. The connection between the connecting end 32 and the energy absorbing section 31 extends into a trapezoid. A second circular hole 321 is provided through the connecting end 32. Two second circular holes 321 are provided, and the two second circular holes 321 are spaced apart along the connecting end 32. The second circular hole 321 on the connecting end 32 is equal in size to the first circular hole 11 of the cover plate 1 and corresponds one to one.

[0041] The pad 4 is a rectangular plate, and a plurality of third circular holes 41 are formed on the pad 4. Four third circular holes 41 are arranged, and the four third circular holes 41 are arranged in a rectangular shape. The third circular holes 41 on the pad 4, the second circular holes 321 on the connecting end 32 and the first circular holes 11 on the cover plate 1 are equal in size and correspond one to one.

[0042] The filling plate 5 is a rectangular plate with the same thickness as the partition 2. Two grooves are arranged at one end of the filling plate 5. The cross-section of the groove is roughly trapezoidal, which is equal in size and shape to the connecting end 32 and the trapezoidal plate extended from the connection between the connecting end 32 and the energy consuming section 31. The two grooves are respectively connected to the two connecting ends 32 located at the same end of the two energy consuming sections 31. The other end of the filling plate 5 is a smooth end. Two filling plates 5 are arranged, one of which is located above the core energy consuming plate 3 and the other is located below the core energy consuming plate 3. The concave and convex ends of the two filling plates 5 are opposite to each other, and the concave and convex ends of the filling plates 5 are embedded and connected with the connecting end 32. The smooth end of each of the filling plates 5 is aligned with one end of the first circular hole 11 set on the cover plate 1 and the end of the pad 4 away from the cover plate 1; the filling plate 5 works in coordination with the pad 4 and the core energy consuming plate 3 under the connecting action of the fastener 6, which is beneficial to improving the connection coordination of the device with other structural components.

[0043] The fastener 6 includes a first bolt 61 and a second bolt 62; eight first bolts 61 are provided, and the eight first bolts 61 pass through the first circular hole 11, the second circular hole 321 and the third circular hole 41 to fix the cover plate 1, the core energy absorbing plate 3 and the pad 4; four second bolts 62 are provided, and the four second bolts 62 pass through the first oblong hole 12 and the fourth circular hole 211 to fix the cover plate 1 and the partition 2; the setting of the first oblong hole 12 and the fourth circular hole 211 provides space for the displacement of the core energy absorbing plate 3 under the action of seismic load, and through the sliding of the second bolts 62, the ductile deformation capacity of the core energy absorbing plate 3 is increased, thereby improving the seismic resistance of the device.

[0044] It should be noted that a normal reserved interval of 10 mm is set between one end of the pad 4 and one end of the first oblong hole 12 set in the cover plate 1, a normal reserved interval of 10 mm is set between the upper end of the partition plate 2 and the lower end of the filling plate 5 located above the core energy absorbing plate 3, and a normal reserved interval of 10 mm is set between the lower end of the partition plate 2 and the upper end of the filling plate 5 located below the core energy absorbing plate 3; the energy dissipation effect of the device is mainly achieved by the plastic deformation of the axial full cross-section of the energy dissipation section 31 of the core energy dissipation plate 3 for energy dissipation, and under the action of an earthquake, the cover plates 1 on both sides undergo relative displacement, and the friction generated on the contact surface between the cover plates on both sides and the partition plate 2 also has an energy dissipation effect.

[0045] The use process and working principle of this device:

[0046] When using a replaceable energy-absorbing device applied to the core stress node domain of a steel frame structure, it is connected to core stress-absorbing components such as column bases or beam-column connection nodes. Taking the column base as an example, two such devices can be arranged on both sides of the column base. In each device, two core energy-absorbing panels 3 are aligned and placed side by side, a filling panel 5 is embedded and connected to the upper end of the core energy-absorbing panel 3, and another filling panel 5 is embedded and connected to the lower end of the core energy-absorbing panel 3. A second partition plate 22 is placed in the gap between the two core energy-absorbing panels 3, and two first partition plates 21 are placed on the outer sides of the two core energy-absorbing panels 3, respectively. Two cover plates 1 and two pads 4 are placed on both sides of the core energy-absorbing panels 3, respectively. , the upper end of one pad 4 and the smooth end of the filling plate 5 located above are aligned with the upper end of one cover plate 1, and the lower end of the other cover plate 1 and the smooth end of the filling plate 5 located below are aligned with the lower end of the other pad 4; the alignment of the above components makes the first circular hole 11, the second circular hole 321 and the third circular hole 41 correspond one by one, and the first oblong hole 12 and the fourth circular hole 211 correspond one by one, and the eight first bolts 61 pass through the first circular hole 11, the second circular hole 321, and the third circular hole 41 one by one and are locked and fixed to the column base; the four second bolts 62 pass through the first oblong hole 12 and the fourth circular hole 211 one by one and are locked and fixed to the column base.

[0047] The replaceable energy dissipation device applied to the core stress node domain of the steel frame structure described in the present invention can first induce plastic deformation to the core energy dissipation plate to protect the core stress node of the building structure; under the action of earthquake load, the main bearing structure of the building drives the core energy dissipation plate to produce displacement, and the plastic deformation of the core energy dissipation plate caused by the displacement will play a role in dissipating earthquake energy, so that the core stress node of the building structure can maintain elasticity or only produce slight plastic deformation, and the plastic deformation caused by the tensile or compression effect of the core energy dissipation plate will play an energy dissipation role, which is beneficial to improve the seismic resistance and seismic toughness of the main bearing structure connected to the device under earthquake action.

[0048] The core energy-absorbing panels in the device can be flexibly adjusted according to actual engineering needs to produce different energy-absorbing effects and adapt to different main bearing structures, which is beneficial to protecting the main bearing structure of the building connected to the device to maintain an elastic state under the action of seismic loads.

[0049] When in use, the device can be attached to the core stress nodes of the building structure to improve the stiffness of the core stress nodes of the building structure. Generally, the device can be arranged in two directions on the core stress nodes of the building structure. Taking the column foot as an example, the device is arranged on the outside of the flange plates on both sides of the column at the column foot. When the column rotates due to earthquake load, the energy dissipation device arranged on the outside of the flange plate is pulled on one side and compressed on the other side. The stretching and compression effects of the energy dissipation plates on both sides can provide a certain resistance torque for the column, which is beneficial to improve the stiffness of the column.

[0050] The core energy-absorbing plate in the device is very convenient to replace after being damaged; due to the restraining effect of the connection of the cover plate, partition plate, pad plate and core energy-absorbing plate through fasteners, other non-energy-absorbing components except the core energy-absorbing plate have sufficient activity space under the action of earthquake, are not prone to plastic deformation, and generally do not affect the main bearing structure. Therefore, after being damaged by the earthquake, it is generally only necessary to replace the core energy-absorbing plate to restore the normal energy-absorbing function of the device, and the replacement work is simple and easy to operate.

[0051] The device has strong independence; when in use, it can be used as an additional component of the core stress node of the building structure to increase the energy consumption capacity of the core stress node of the building structure. After being damaged, the core energy consumption panel can be quickly replaced, and after the device is removed, the normal function of the core stress node of the building structure is not affected.

[0052] The device has superior mechanical properties and strong energy dissipation capacity; the cover plate can constrain the out-of-plane buckling produced by the core energy dissipation plate, the partition plate can constrain the lateral displacement produced by the core energy dissipation plate, and the setting of the oblong hole provides space for the axial displacement produced by the core energy dissipation plate, thereby increasing its ductile deformation capacity. Under the constraint of the external components of the core energy dissipation plate, the entire axial cross-section of the energy dissipation section on the core energy dissipation plate participates in the plastic deformation, so that the device has superior mechanical properties and more significant energy dissipation capacity.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure, characterized in that: The invention comprises a cover plate (1), a partition plate (2), a core energy absorbing plate (3), a pad plate (4), a filling plate (5) and a fastener (6); the cover plate (1), the core energy absorbing plate (3), the pad plate (4) and the filling plate (5) are each provided with two, the two ends of the two core energy absorbing plates (3) are aligned and arranged at intervals, the two cover plates (1) are arranged on both sides of the core energy absorbing plate (3), the two pad plates (4) are arranged on both sides of the core energy absorbing plate (3), and the pad on one side of the core energy absorbing plate (3) is provided with a plurality of pads. The plate (4) is arranged above the cover plate (1), and the pad plate (4) on the other side is arranged below the cover plate (1); the two filling plates (5) are respectively embedded and connected with the two ends of the core energy absorbing plate (3), and the partition plate (2) is arranged in the middle of the core energy absorbing plate (3); a plurality of fasteners (6) are provided, and the plurality of fasteners (6) pass through the cover plate (1), the partition plate (2), the core energy absorbing plate (3) and the pad plate (4) one by one and are fixed on the core force-bearing node of the building structure.

2. According to claim 1, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: The core energy absorbing plate (3) comprises an energy absorbing section (31) and a connecting end (32); the energy absorbing section (31) is a rectangular plate; the connecting end (32) is a rectangular plate respectively arranged at the upper and lower ends of the energy absorbing section (31); the width of the connecting end (32) is greater than the width of the energy absorbing section (31); the connecting end (32) and the energy absorbing section (31) are connected at a position extending into a trapezoid; two second circular holes (321) are arranged through the connecting end (32); the two second circular holes (321) are arranged at intervals along the connecting end (32).

3. According to claim 2, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: The partition (2) comprises a first partition (21) and a second partition (22); two first partitions (21) are provided, respectively located on two non-adjacent sides of the core energy consuming plate (3); each first partition (21) is provided with two fourth circular holes (211); the two fourth circular holes (211) are arranged at intervals along the first partition (21); the second partition (22) is freely movable in the middle gap between the adjacent sides of the two core energy consuming plates (3), and the two sides of the second partition (22) are in contact with the adjacent sides of the two core energy consuming plates (3).

4. According to claim 2, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: Two grooves are provided at one end of the filling plate (5), and the two grooves are respectively connected to two connecting ends (32) located at the same end of the two energy consuming sections (31), one of the filling plates (5) is embedded and fixedly connected to the upper end of the core energy consuming plate (3), and the other filling plate (5) is embedded and fixedly connected to the lower end of the core energy consuming plate (3).

5. According to claim 3, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: A 10 mm gap is reserved between one end of the pad (4) and one end of the cover plate (1) provided with the first oblong hole (12); a 10 mm gap is reserved between the upper end of the partition (2) and the lower end of the filling plate (5) located above the core energy consuming plate (3); and a 10 mm gap is reserved between the lower end of the partition (2) and the upper end of the filling plate (5) located below the core energy consuming plate (3).

6. According to claim 1, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: One end of the cover plate (1) is provided with four first circular holes (11), and the other end of the cover plate (1) is provided with four first oblong holes (12), and the four first circular holes (11) and the four first oblong holes (12) are all arranged in a rectangular shape; the two cover plates (1) are arranged in opposite directions along the axial direction, and the first oblong holes (12) on the two cover plates (1) correspond to each other one by one.

7. According to claim 6, a replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure is characterized in that: The pad (4) is a rectangular plate, and a plurality of third circular holes (41) are provided on the pad (4). Four third circular holes (41) are provided, and the four third circular holes (41) are arranged in a rectangular shape.

8. A replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure according to claim 5 or 7, characterized in that: The third circular hole (41) on the pad (4), the second circular hole (321) on the connecting end (32) and the first circular hole (11) on the cover plate (1) are of equal size and correspond one to one; the fourth circular hole (211) on the first partition plate (21) corresponds one to one to the first oblong hole (12) on the cover plate (1).

9. A replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure according to claim 8, characterized in that: The smooth end of the filling plate (5) is aligned with one end of the cover plate (1) where the first circular hole (11) is provided and one end of the pad (4) away from the cover plate (1).

10. A replaceable energy dissipation device applied to the core stress node area of ​​a steel frame structure according to claim 8, characterized in that: The fastener (6) comprises a first bolt (61) and a second bolt (62); eight first bolts (61) are provided, and the eight first bolts (61) pass through the first circular hole (11), the second circular hole (321) and the third circular hole (41) one by one to fix the cover plate (1), the core energy dissipation plate (3) and the backing plate (4); four second bolts (62) are provided, and the four second bolts (62) pass through the first oblong hole (12) and the fourth circular hole (211) one by one to fix the cover plate (1) and the partition plate (2).

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