Multi-level energy dissipation detachable steel skeleton composite wall structure

Abstract

The application discloses a multi-level energy dissipation and shock absorption detachable steel skeleton combined wall structure, which comprises a wall plate assembly and a steel skeleton assembly, the wall body assembly comprises two upper wall plates and two lower wall plates in the form of rectangular plate structures with side edge wing plates, each upper wall plate and lower wall plate is detachably connected with the steel skeleton assembly through a bolt piece, each upper wall plate bottom and lower wall plate top are provided with a matched tenon and mortise, and the steel skeleton assembly is connected with an energy dissipation support assembly and a plurality of inclined support rod assemblies through a connecting node seat. The multi-level energy dissipation and shock absorption detachable steel skeleton combined wall structure provided by the application solves the problem that the plastic deformation leads to excessive structural residual displacement and the structure is difficult to repair after the earthquake in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of earthquake-resistant building wall technology, specifically involving a multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure. Background Technology

[0002] In the field of building structural engineering, existing steel-framed walls mostly rely on the structure's own plastic deformation to dissipate energy. However, this single mechanism has significant drawbacks: First, plastic deformation leads to excessive residual displacement in the structure, resulting in high post-earthquake repair costs. Second, its energy dissipation capacity is limited, and it is prone to brittle failure under high-intensity earthquakes. Traditional steel frames dissipate energy through plastic hinges at beam-column joints during earthquakes, but this requires increasing the cross-sectional dimensions to meet stiffness requirements, leading to increased steel consumption and difficulty in restoring functionality after the earthquake. Furthermore, while existing disassembly and connection technologies enable structural disassembly, the connections are prone to loosening under seismic loads, affecting overall stiffness and energy dissipation capacity.

[0003] With the acceleration of urbanization and the frequent occurrence of extreme earthquakes, the shortcomings of traditional building structures in terms of seismic toughness, energy efficiency, and recyclability are becoming increasingly apparent. Traditional steel-framed wall construction relies on on-site welding and wet work, resulting in complex procedures and long cycles. For example, lightweight steel keel partition walls require on-site cutting of the keel and filling with sound insulation cotton, which is difficult to manage and prone to environmental pollution. While modular construction has been proposed, existing solutions mainly focus on assembly efficiency and have not systematically addressed the coordinated design issues of multi-level energy consumption and disassembly. Therefore, the development of new seismic-resistant and vibration-damping structural systems is urgently needed, and energy-dissipating and vibration-damping technologies have gradually become a research hotspot to overcome the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-layered, energy-dissipating, and shock-absorbing detachable steel frame composite wall structure, which solves the problem in the prior art that plastic deformation leads to excessive residual displacement of the structure and makes it difficult to repair after an earthquake.

[0005] The technical solution adopted in this invention is a multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure, including wall panel assemblies and steel frame assemblies. The wall assembly includes two upper wall panels and two lower wall panels with rectangular plate-like structures with side wing plates. Each upper wall panel and lower wall panel is detachably connected to the steel frame assembly by bolts. Each upper wall panel has a matching tenon and mortise at the bottom and the lower wall panel has a matching tenon and mortise at the top. The steel frame assembly is connected to an energy-dissipating support assembly and multiple diagonal support rod assemblies through connecting node seats.

[0006] The technical solution of this invention is also characterized by,

[0007] The steel frame assembly includes a first steel frame, a second steel frame, a third steel frame, a fourth steel frame, a fifth steel frame, and a sixth steel frame. The lower end faces of the first and third steel frames are fixed with cross-shaped protrusions, each with two symmetrical first fixing holes. The upper end faces of the fourth and sixth steel frames are fixed with cross-shaped recesses that match the cross-shaped protrusions, each with two symmetrical first fixing holes. The first, third, fourth, and sixth steel frames are connected to each other via bolts. The top and middle of the first and third steel frames each have two symmetrical first fixing holes. Two upper wall panels are connected to the first and third steel frames via bolts. The fourth and sixth steel frames have first fixing holes in the middle, and the fourth and sixth steel frames are connected to the two lower wall panels respectively by bolts.

[0008] The first, third, fourth, and sixth steel frames each have two rectangular slots on one corresponding side; the second and fifth steel frames each have rectangular slots on both corresponding sides. Each upper wall panel includes two symmetrically arranged upper main body panels. Each upper main body panel has upper side wing plates fixed to its two symmetrical sides. The upper side wing plates on one side of each upper main body panel are respectively located in the rectangular grooves opened by the first steel frame and the third steel frame and are fixed by the first bolt. The upper side wing plates on the other side of the upper main body panel are located in the rectangular groove opened by the second steel frame and are fixed by the first bolt and nut. Both lower wall panels include a symmetrically arranged lower main body panel. Each lower main body panel has a lower side wing plate fixed to its two symmetrical sides. The lower side wing plate on one side of each lower main body panel is located in the rectangular groove opened by the fourth steel frame and the sixth steel frame, respectively, and is fixed by the first bolt. The lower side wing plate on the other side of the lower main body panel is located in the rectangular groove opened by the fifth steel frame, respectively, and is fixed by the first bolt.

[0009] The steel frame assembly includes a first steel frame, a second steel frame, a third steel frame, a fourth steel frame, a fifth steel frame, and a sixth steel frame. The rectangular grooves are symmetrically distributed along the central axis of the corresponding steel frame. A limiting groove is formed in the area between the rectangular grooves. The limiting groove is located at the symmetrical center of the two rectangular grooves, and the central axis of the limiting groove coincides with the central axis of the corresponding steel frame.

[0010] The first, second, third, fourth, fifth, and sixth steel frames have symmetrical mounting holes on their top and bottom sides near the wall panel. These mounting holes are located on the sides of the rectangular grooves in each steel frame. The connecting node seats have connecting holes and second fixing holes, and are connected to the first, second, third, fourth, fifth, and sixth steel frames respectively by bolts.

[0011] The energy-consuming support assembly includes a connecting disc and an outer sleeve that are fixedly connected to each other. Four mounting slots are evenly distributed circumferentially on one end face of the connecting disc. The four mounting slots are arranged in a circular equidistant array with the center of the connecting disc as the center. The mounting slots that are opposite each other are coaxially aligned. An inclined support rod assembly is connected inside the mounting slot. The inner cavity of the outer sleeve is provided with an axially extending inner cavity. A first helical spring and a transmission slider are provided inside the inner cavity. One end of the first helical spring is fixedly connected to one end of the outer sleeve, and the other end of the first helical spring is fixedly connected to the transmission slider. A movable rod is fixedly connected to the transmission slider. A fixed rod is fixedly connected to the end of the outer sleeve away from the movable rod. Limiting plates are fixedly connected to the other ends of the fixed rod and the movable rod. A limiting hole is opened in the center of the limiting plate. Protruding clips are symmetrically opened on the inner wall of the limiting groove. The protruding clips engage in the limiting hole.

[0012] Each set of inclined support rod assemblies includes an inclined sleeve, an SMA piston that is slidably installed in the inner cavity of the inclined sleeve, an inner extension rod that is connected to one end of the SMA piston, an ear plate that extends out of the inclined sleeve and is connected to the other end of the inner extension rod, an inclined support rod that extends out of the inclined sleeve and is connected to the ear plate, and a helical spring that is fitted on the inner extension rod and is connected to the SMA piston. The ear plate at the end of the inclined support rod is fitted into the mounting groove of the corresponding connecting disc and connected by the second bolt; the ear plate at the end of the inner extension rod is fitted into the corresponding connecting node seat, and the second bolt passes through the connecting node seat and is hinged to the ear plate through the hinge hole.

[0013] A pressure sensor is provided at the inner end of the inclined sleeve, and the pressure sensor is located at the end of the second helical spring away from the SMA piston.

[0014] Each upper main panel has a first tenon and a second tenon fixedly connected to its bottom, forming an upper tenon groove; the lower main panel also has a first tenon and a second tenon fixedly connected to its top; the first tenon and the second tenon of the lower main panel form a lower tenon groove; the first tenon of the upper main panel is located in the lower tenon groove of the lower main panel, and the first tenon of the lower main panel is located in the upper tenon groove of the upper wall panel.

[0015] The beneficial effects of this invention are: (1) The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure provided by the present invention has a cross groove at the upper end of the steel frame and a cross slot at the lower end, so that the insertion part of the upper steel frame can be inserted into the cross groove of the lower steel frame. This insertion method allows the steel frame to be quickly installed and unloaded. At the same time, the connection between the wall panel and the steel frame adopts a wedge-shaped slider combination connection, and the flanges on both sides of the wall panel fit into the groove of the steel frame. This connection method simplifies the connection process and can play a role in adjusting the position when not completely fixed. The bolt fixing connection makes the overall structure more stable.

[0016] (2) The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure provided by the present invention achieves energy dissipation and vibration reduction through intelligent inclined support rods and energy-dissipating support rods in the wall panel interlayer. The energy-dissipating support rods achieve energy dissipation and vibration reduction through the cooperation of helical springs, movable rods and fixed rods, and also play a role in fixing the steel frame to the steel frame. The intelligent inclined support rods detect the pressure on the helical springs through pressure sensors. By detecting the pressure change on the springs, the deformation and energy dissipation state of the springs can be grasped in real time, and it can be determined whether they are in the normal working range. At the same time, the helical springs and SMA pistons cooperate to achieve the purpose of multi-stage energy dissipation, further enhancing the strength and rigidity of the overall structure, greatly improving the stability and seismic performance of the steel frame composite wall. It can be quickly installed and disassembled during construction, and easily damaged individual components can be replaced during repair, which improves construction efficiency and reduces construction costs. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention; Figure 2 This is an exploded view of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention. Figure 4 This is a schematic diagram of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention. Figure 5 This is a structural schematic diagram of the energy-dissipating support component of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the inclined support rod of the multi-layer energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention. Figure 7 This is a schematic diagram of the connection node seat structure of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention. Figure 8 This is a partial enlarged view of the connection node seat of the multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure of the present invention.

[0018] In the diagram: 1. Upper wall panel; 11. Upper main body panel; 12. Upper side wing panel; 13. Upper tenon; 14. First tenon; 15. Second tenon; 2. Lower wall panel; 21. Lower main body panel; 22. Lower side wing panel; 23. Lower tenon; 3. First steel frame; 4. Second steel frame; 5. Third steel frame; 6. Fourth steel frame; 7. Fifth steel frame; 8. Sixth steel frame; 9. First fixing hole; 10. Energy dissipation support component; 101. Limiting plate; 102. Fixing rod; 103. Outer sleeve; 104. First screw 105. Helical spring; 106. Transmission slider; 107. Movable rod; 110. Inner cavity; 120. Connecting disc; 130. Mounting groove; 16. Connecting hole; 17. Diagonal support rod assembly; 18. Ear plate; 19. Inner extension rod; 100. Diagonal sleeve; 111. Pressure sensor; 122. Second helical spring; 133. SMA piston; 14. Diagonal support rod; 15. Movable cavity; 164. First bolt; 17. Nut; 18. Connecting node seat; 195. Second fixing hole; 20. Second bolt. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a multi-layered, energy-dissipating, and vibration-damping detachable steel frame composite wall structure, such as... Figure 1 and Figure 2As shown, the system includes a wall panel assembly and a steel frame assembly. The wall assembly includes two upper wall panels 1 and two lower wall panels 2, which are rectangular plate-like structures with side flanges. Each upper wall panel 1 and lower wall panel 2 is detachably connected to the steel frame assembly via bolts. Each upper wall panel 1 has a matching tenon and mortise at its bottom, and each lower wall panel 2 has a matching tenon and mortise at its top. The steel frame assembly is connected to an energy-dissipating support assembly 10 and multiple diagonal support rod assemblies 16 via a connecting node seat 19. The steel frame assembly includes a first steel frame 3, a second steel frame 4, a third steel frame 5, a fourth steel frame 6, a fifth steel frame 7, and a sixth steel frame 8. The lower end faces of the first steel frame 3 and the third steel frame 5 are fixed with cross-shaped protrusions, and the protrusions have two symmetrical first fixing holes 9. The upper end faces of the fourth steel frame 6 and the sixth steel frame 8 are fixed with cross-shaped protrusions. A cross-shaped concave body with a body fits the body shape. Two symmetrical first fixing holes 9 are opened at corresponding positions of the concave body. The first steel frame 3, the third steel frame 5, the fourth steel frame 6, and the sixth steel frame 8 are respectively connected to each other by bolts. Two first fixing holes 9 are symmetrically opened at the top and middle of the first steel frame 3 and the third steel frame 5. The two upper wall panels 1 are respectively connected to the first steel frame 3 and the third steel frame 5 by bolts. The fourth steel frame 6 and the sixth steel frame 8 have first fixing holes 9 in the middle. The fourth steel frame 6 and the sixth steel frame 8 are respectively connected to the two lower wall panels 2 by bolts. Two rectangular grooves are opened on one corresponding side of the first steel frame 3, the third steel frame 5, the fourth steel frame 6, and the sixth steel frame 8. Rectangular grooves are opened on both corresponding sides of the second steel frame 4 and the fifth steel frame 7.

[0021] Among them, such as Figure 4As shown, each upper wall panel 1 includes two symmetrically arranged upper main body panels 11. Each upper main body panel 11 has upper side wing plates 12 fixedly connected to its two symmetrical sides. The upper side wing plates 12 on one side of each upper main body panel 11 are respectively located in the rectangular slots opened by the first steel frame 3 and the third steel frame 5 and are fixed by the first bolt 17. The upper side wing plates 12 on the other side of the upper main body panel 11 are located in the rectangular slots opened by the second steel frame 4 and are fixed by the first bolt 17. Each of the two lower wall panels 2 includes two symmetrically arranged lower main body panels 21. Each lower main body panel 21 has lower side wing plates 22 fixedly connected to its two symmetrical sides. The lower side wing plates 22 on one side of each lower main body panel 21 are respectively located in the rectangular slots opened by the fourth steel frame 6 and the sixth steel frame 8 and are fixed by the first bolt 17 and the nut 18. The lower side wing plates 22 on the other side of the lower main body plate 21 are respectively located in the rectangular grooves opened in the fifth steel frame 7 and fixed by the first bolt 17; the steel frame assembly includes the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7 and the sixth steel frame 8, whose rectangular grooves are symmetrically distributed along the central axis of the corresponding steel frame. Limiting grooves are opened in the area between the rectangular grooves, and the limiting grooves are located at the symmetrical center of the two rectangular grooves, and the central axis of the limiting grooves coincides with the central axis of the corresponding steel frame; the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7 and the sixth steel frame 8 have symmetrically opened frame mounting holes on the top and bottom sides of their sides near the wall panel, and the frame mounting holes are located on the sides of the rectangular grooves opened in each steel frame; Figure 7 and Figure 8 As shown, the connecting node seat 19 has a connecting hole 130 and a second fixing hole 191. The connecting node seat 19 is connected to the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7 and the sixth steel frame 8 respectively by bolts.

[0022] Among them, such as Figure 3 , Figure 5 and Figure 6As shown, the energy-consuming support assembly 10 includes a connecting disc 110 and an outer sleeve 103 fixedly connected to each other. Four mounting slots 120 are evenly distributed circumferentially on one end face of the connecting disc 110. The four mounting slots 120 are arranged in a circular, equidistant array with the center of the connecting disc 110 as the center. Two opposite mounting slots 120 are coaxially aligned. An inclined support rod assembly 16 is connected within each mounting slot 120. The outer sleeve 103 has an axially extending inner cavity 107. A first helical spring 104 and a transmission slider 105 are housed within the inner cavity 107. One end of the first helical spring 104 is fixedly connected to one end of the outer sleeve 103, and the other end of the first helical spring 104 is fixedly connected to... The transmission slider 105 is connected to the transmission slider 105, and the transmission slider 105 is fixedly connected to the movable rod 106. The outer sleeve 103 is fixedly connected to the fixed rod 102 at the end away from the movable rod 106. The fixed rod 102 and the other end of the movable rod 106 are respectively fixedly connected to the limiting plate 101. The limiting plate 101 has a limiting hole in the center. The inner wall of the limiting groove is symmetrically provided with protruding clips, which are engaged in the limiting hole. Each set of inclined support rod assembly 16 includes an inclined sleeve 163. An SMA piston 166 is slidably arranged in the inner cavity of the inclined sleeve 163. An active cavity 168 is formed between the SMA piston 166 and the inclined sleeve 163. The active cavity 168 is filled with high viscosity damping fluid. One end of the SMA piston 166 is connected to an inner extension rod 162. The other end of the inner extension rod 162 extends out of the inclined sleeve 163 and is connected to an ear plate 161. The other end of the SMA piston 166 is connected to an inclined support rod 167. The other end of the inclined support rod 167 extends out of the inclined sleeve 163 and is connected to the ear plate 161. A coil spring 165 is sleeved on the inner extension rod 162 and is connected to the SMA piston 166. The ear plate 161 at the end of the inclined support rod 167 is embedded in the mounting groove 120 of the corresponding connecting disc 110 and is connected by a second bolt 20. The ear plate 161 at the end of the inner extension rod 162 is embedded in the corresponding connecting node seat 19. The second bolt 20 passes through the connecting node seat 19 and is hinged to the hinge hole of the ear plate 161. A pressure sensor 164 is provided at the inner end of the inclined sleeve 163. The pressure sensor 164 is located at the end of the second coil spring 165 away from the SMA piston 166. Each upper main body plate 11 has a first tenon 14 and a second tenon 15 fixedly connected to its bottom, and the first tenon 14 and the second tenon 15 form an upper tenon groove 13; the lower main body plate 21 also has a first tenon 14 and a second tenon 15 fixedly connected to its top; the first tenon 14 and the second tenon 15 of the lower main body plate 21 form a lower tenon groove 23; the first tenon 14 of the upper main body plate 11 is located in the lower tenon groove 23 of the lower main body plate 21, and the first tenon 14 of the lower main body plate 21 is located in the upper tenon groove 13 of the upper wall plate 1.

[0023] In actual engineering, when an earthquake triggers vibration in a steel-framed composite wall structure, the energy-dissipating support component 10 will experience axial relative displacement, and the first helical spring 104 will undergo compression or tension deformation. Simultaneously, the transmission slider 105 will generate heat energy through displacement within the inner cavity 107 and friction with the inner wall of the outer sleeve 103. By utilizing the energy dissipation during the deformation of the first helical spring 104, the mechanical energy input by the earthquake is converted into the elastic energy of the spring and partially dissipated, effectively reducing the seismic response amplitude of the structure.

[0024] Furthermore, the bottom surface of the connecting disc 110 is tangent to and fixedly connected to the outer sleeve 103. The lug 161 at one end of the inclined support rod 16 is placed in the mounting groove 120 of the connecting disc 110 and fixedly connected by the second bolt 20; the inner extension rod 162 extends into the movable cavity 168, with the left end connected to the lug 161 and the right end connected to the SMA piston 166. The second fixing hole 191 of the connecting node seat 19 is aligned with the second fixing hole 191 of the steel frame and fixedly connected by the second bolt 20. The other end lug 161 extends into the connecting node seat 19, and the second bolt 20 passes through the connecting hole 130 between the connecting node seat 19 and the lug 161.

[0025] In actual engineering, when an earthquake triggers vibration in a steel-framed composite wall structure, the energy-dissipating support component 10 will experience axial relative displacement, and the first helical spring 104 will undergo compression or tension deformation. Simultaneously, the transmission slider 105 will displace within the inner cavity 107, generating heat through friction with the inner wall of the outer sleeve 103. By utilizing the energy dissipation during the deformation of the first helical spring 104, the mechanical energy input by the earthquake is converted into the elastic energy of the spring and partially dissipated, effectively reducing the seismic response amplitude of the structure.

[0026] Furthermore, the bottom surface of the connecting disc 110 is tangent to and fixedly connected to the outer sleeve 103. The ear plate 161 at one end of the inclined support rod assembly 16 is placed in the mounting groove 120 of the connecting disc 110 and fixedly connected by the second bolt 20; the inner extension rod 162 extends into the movable cavity 168, with its left end connected to the ear plate 161 and its right end connected to the SMA piston 166. The second fixing hole 191 of the connecting node seat 19 is aligned with the frame mounting hole of the steel frame and fixedly connected by bolts. The ear plate 161 at the other end of the inclined support rod assembly 16 extends into the connecting node seat 19, and the second bolt 20 is used to sequentially pass through the connecting holes 130 of the connecting node seat 19 and the ear plate 161 to complete the hinged fixation.

[0027] In practical engineering, when an earthquake causes structural displacement, the two ends of the inclined support rod assembly 16 move axially, first driving the second helical spring 165 to undergo elastic deformation. Simultaneously, a cylindrical pressure sensor 164 is installed at the bottom of the movable cavity 168 to monitor the pressure on the spring in real time. This provides data support for real-time assessment of the structure's seismic performance and helps determine the degree of damage to the spring and energy dissipation system after an earthquake, providing a basis for system maintenance, performance optimization, or component replacement, ensuring the structure's long-term stable energy dissipation and vibration reduction capabilities. When the earthquake intensifies and the structural displacement exceeds the spring's initial deformation range, the SMA piston 166 begins to engage. Simultaneously, the phase change process of the SMA piston 166 generates heat through friction with the inclined sleeve 163. Through the combined effects of spring deformation energy dissipation, SMA phase change energy dissipation, and piston displacement friction heat dissipation, the structure's energy dissipation and vibration reduction capabilities under small, medium, and large earthquake intensities are significantly improved, effectively reducing structural deformation.

[0028] Furthermore, the upper side wing plate 12 of the aforementioned upper wall panel 1 is sequentially inserted into the rectangular grooves of the first steel frame 3, the second steel frame 4, and the third steel frame 5; the cross-shaped recesses of the fourth steel frame 6, the fifth steel frame 7, and the sixth steel frame 8 are sequentially inserted into the corresponding upper steel frames 3, 4, and 5. The installation method of the lower energy-dissipating support component 10, the inclined support rod component 16, and the connecting node seat 19 is the same as that of the upper components. The lower tenon groove 23 of the lower wall panel 2 is wedged into the first tenon 14 of the upper wall panel 1. The thickness of the second tenon 15 is equal to the thickness of the rectangular groove on the side of the steel frame, and the width of the upper side wing plate 12 is equal to the width of the rectangular groove. The upper wall panel 1, the lower wall panel 2, and the steel frame can be completely wedged together. Finally, insert the upper wall panel 1 and lower wall panel 2 on the other side into the rectangular groove on the other side of the steel frame in sequence. Insert the upper side wing plate 12 of the steel frame and upper wall panel 1 in sequence with the first bolt 17, and then fix it with the nut 18. The other corresponding positions are also fixed and connected with the first bolt 17 and nut 18.

[0029] First, a cross-shaped steel frame, such as the first steel frame 3 and the third steel frame 5, is connected using the first circular fixing hole 9 and the first bolt 17 and nut 18. The upper wall panel 1 and the lower wall panel 2 are connected by the first tenon 14 and the second tenon 15, which are inserted into the upper tenon 13 and the lower tenon 23. The upper side wing plate 12 and the lower side wing plate 22 are inserted into the rectangular grooves of the steel frame. During an earthquake, the insertion interface generates slight sliding friction, dissipating seismic energy and preventing overall plastic deformation of the steel frame and brittle cracking of the wall panels. The above-mentioned insertion method also avoids welding damage, realizes the detachability of the frame layer, and allows for individual component replacement after an earthquake without disassembling the surrounding structure.

[0030] Secondly, the energy-dissipating support assembly 10 adopts a core structure consisting of a fixed rod 102, a movable rod 106, and a first helical spring 104. Through a dual mechanism of deformation of the first helical spring 104 and friction between the transmission slider 105 and the inner wall of the outer sleeve 103, the main energy-dissipating unit of the structural layer is formed. The node layer employs a multi-stage energy-dissipating mechanism using the inclined support rod assembly 16. The second helical spring 165 achieves primary energy dissipation: during minor earthquakes, the inner extension rod 162 of the inclined support rod assembly 16 displaces with the steel frame, driving the second helical spring 165 to undergo elastic deformation and dissipate energy. The SMA piston 166 achieves secondary energy dissipation: during moderate and severe earthquakes, the SMA piston 166 undergoes a phase change, generating nonlinear deformation and dissipating energy through this phase change. Simultaneously, the spring pressure is monitored in real-time by the pressure sensor 164 to ensure effective energy dissipation. The movable cavity 168 achieves frictional energy dissipation: the movable cavity between the SMA piston 166 and the inclined sleeve 163 can be filled with a high-viscosity damping fluid. When the SMA piston 166 moves, it further dissipates energy through liquid shear friction, ultimately forming a three-stage energy-dissipating system. Through the above design, this invention achieves a three-in-one breakthrough in seismic energy graded dissipation, non-destructive disassembly of structural components, and material recycling, effectively solving the core problems of traditional steel frame walls such as "single energy consumption and difficult dismantling and repair," and providing an innovative solution for buildings in high-intensity seismic zones that combines seismic toughness and sustainability.

[0031] Example 1 The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure provided in this embodiment, such as Figure 1-8 As shown, the system includes a wall panel assembly and a steel frame assembly. The wall panel assembly includes two upper wall panels 1 and two lower wall panels 2, which are rectangular plate-shaped structures with side wing plates. Each upper wall panel 1 and lower wall panel 2 is detachably connected to the steel frame assembly by bolts. Each upper wall panel 1 has a matching tenon and mortise at the bottom and the lower wall panel 2 at the top, which realizes the precise positioning and wedging connection of the upper and lower wall panels. The steel frame assembly is connected to an energy-dissipating support assembly 10 and multiple diagonal support rod assemblies 16 through a connecting node seat 19.

[0032] The steel frame composite wall structure in this embodiment uses steel frame components as the main load-bearing frame and wall panel components as the enclosure structure. Through the matching design of tenons and mortises, the upper and lower wall panels can be quickly positioned and installed. At the same time, the wall panels and steel frame can be detachably connected by bolts, eliminating the need for on-site welding and making assembly and disassembly convenient.

[0033] Example 2 This embodiment, based on Embodiment 1, defines the specific structure of the steel frame assembly to form a complete steel frame assembly system. The steel frame assembly includes a first steel frame 3, a second steel frame 4, a third steel frame 5, a fourth steel frame 6, a fifth steel frame 7, and a sixth steel frame 8. The lower end faces of the first steel frame 3 and the third steel frame 5 are fixed with cross-shaped protrusions, each with two symmetrical first fixing holes 9. The upper end faces of the fourth steel frame 6 and the sixth steel frame 8 are fixed with cross-shaped concave bodies that match the cross-shaped protrusions, each with two symmetrical first fixing holes 9. The first steel frame 3, the third steel frame 5, the fourth steel frame 6, and the sixth steel frame 8 are respectively fixed by bolts. The top and middle of the first steel frame 3 and the third steel frame 5 each have two symmetrical first fixing holes 9, and the two upper wall panels 1 are respectively connected to the first steel frame 3 and the third steel frame 5 by bolts. The middle of the fourth steel frame 6 and the sixth steel frame 8 has first fixing holes 9, and the fourth steel frame 6 and the sixth steel frame 8 are respectively connected to the two lower wall panels 2 by bolts.

[0034] In this embodiment, the upper and lower steel frames are quickly positioned and installed by interlocking cross-shaped protrusions and concave parts. After interlocking, bolts are used to lock and fix the frames through corresponding fixing holes. This ensures the rigidity and reliability of the steel frame connection and enables rapid assembly and disassembly, avoiding the traditional on-site welding process. Under seismic loading, the cross-shaped interlocking structure can evenly transfer horizontal shear force and vertical load, preventing stress concentration at the connection points. Simultaneously, the bolt connection of the first fixing hole 9 ensures that the steel frame does not loosen under seismic cyclic loads, maintaining the overall stability of the structure. The upper and lower wall panels are bolted to the steel frame through corresponding fixing holes, achieving layered fixing of the wall panels. The force transmission path is clear, and the shear force of the wall panels under seismic loading can be evenly transferred to the steel frame, preventing localized cracking of the wall panels.

[0035] Example 3 Based on Embodiment 2, this embodiment further defines the plug-in connection structure and limiting groove structure between the wall panel and the steel frame. Specifically, two rectangular grooves are provided on one side of each of the first steel frame 3, the third steel frame 5, the fourth steel frame 6, and the sixth steel frame 8; rectangular grooves are provided on both sides of each of the second steel frame 4 and the fifth steel frame 7. Each upper wall panel 1 includes two symmetrically arranged upper main body plates 11. Each upper main body plate 11 has an upper side wing plate 12 fixed to its symmetrical two sides. The upper side wing plate 12 on one side of each upper main body plate 11 is located in the rectangular grooves provided by the first steel frame 3 and the third steel frame 5, respectively, and is fixed by the first bolt 17. The upper side wing plate 12 on the other side of the upper main body plate 11 is located in the rectangular groove provided by the second steel frame 4 and is fixed by the first bolt 17. Both lower wall panels 2 include two symmetrically arranged lower main body panels 21. Each lower main body panel 21 has lower side flanges 22 fixed to its two symmetrical sides. The lower side flanges 22 on one side of each lower main body panel 21 are respectively located in the rectangular grooves opened in the fourth steel frame 6 and the sixth steel frame 8 and are fixed by the first bolt 17 and the nut 18. The lower side flanges 22 on the other side of each lower main body panel 21 are respectively located in the rectangular grooves opened in the fifth steel frame 7 and are fixed by the first bolt 17. The rectangular grooves opened in the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7 and the sixth steel frame 8 are symmetrically distributed along the central axis of the corresponding steel frame. Limiting grooves are opened in the area between the rectangular grooves. The limiting grooves are located at the symmetrical center of the two rectangular grooves, and the central axis of the limiting grooves coincides with the central axis of the corresponding steel frame.

[0036] In this embodiment, the wall panel is pre-positioned by inserting its side flanges into the rectangular grooves of the steel frame, and then fixed by bolts. This greatly simplifies the wall panel installation process. Simultaneously, the insertion structure between the flanges and the rectangular grooves restricts the out-of-plane displacement of the wall panel, improving the overall stability of the wall. Under seismic loading, the side flanges of the wall panel generate slight sliding friction with the inner wall of the rectangular grooves of the steel frame, which helps dissipate seismic energy and prevents cracking of the wall panel due to rigid collisions with the steel frame. The side flanges of the upper and lower wall panels are respectively inserted into the rectangular grooves of the corresponding steel frames, and together with the tenon and mortise wedging structure of the upper and lower wall panels, an integrated shear-resistant system is formed, significantly improving the lateral stiffness and shear bearing capacity of the wall.

[0037] Example 4 This embodiment, based on embodiment 3, defines the installation structure of the connecting node seat to provide a reliable installation foundation for the inclined support rod assembly. In this embodiment, the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7, and the sixth steel frame 8 have symmetrically opened frame mounting holes on the top and bottom sides of their sides near the wall panel. The frame mounting holes are located on the sides of each steel frame where a rectangular groove is opened. The connecting node seat 19 has a connecting hole 130 and a second fixing hole 191. The connecting node seat 19 is connected to the first steel frame 3, the second steel frame 4, the third steel frame 5, the fourth steel frame 6, the fifth steel frame 7, and the sixth steel frame 8 respectively by bolts.

[0038] In this embodiment, the connecting node seat 19 is locked and fixed to the frame mounting holes on the steel frame with bolts, providing a reliable hinged installation base for the inclined support rod assembly. Simultaneously, the connecting node seat 19 adopts a modular design, allowing the fixing position to be adjusted according to the installation angle of the inclined support rod assembly, adapting to different design requirements. Under seismic loading, the inter-story displacement of the steel frame is transmitted to the inclined support rod assembly through the connecting node seat 19, causing the inclined support rod assembly to undergo axial reciprocating deformation, thus dissipating seismic energy. The surface contact bolt connection between the connecting node seat 19 and the steel frame ensures that the axial force of the inclined support rod assembly is evenly transmitted to the steel frame, avoiding stress concentration at the connection point and ensuring the continuity and reliability of the force transmission path. If the inclined support rod assembly needs to be replaced after an earthquake, disassembly and assembly can be completed simply by removing the bolts on the connecting node seat, without any modification to the steel frame, further improving the convenience of post-earthquake repair.

[0039] Example 5 Based on Embodiment 4, this embodiment further defines the specific structure of the energy-dissipating support component to form the main energy-dissipating unit of the structure. In this embodiment, the energy-dissipating support component 10 includes a connecting disc 110 and an outer sleeve 103 that are fixedly connected to each other. Four mounting slots 120 are evenly provided on one end face of the connecting disc 110 along the circumference. The four mounting slots 120 are distributed in a circular equidistant array with the center of the connecting disc 110 as the center. The mounting slots 120 that are opposite each other are coaxially corresponding. The inclined support rod component 16 is connected in the mounting slot 120. The outer sleeve 103 has an axially extending inner cavity 107 inside. The inner cavity 107 contains a first helical spring 104 and a transmission slider 105. One end of the first helical spring 104 is fixed to one end of the outer sleeve 103, and the other end of the first helical spring 104 is fixed to the transmission slider 105. The transmission slider 105 is fixed to a movable rod 106. A fixed rod 102 is fixed to one end of the outer sleeve 103 away from the movable rod 106. The other ends of the fixed rod 102 and the movable rod 106 are respectively fixed to a limiting plate 101. A limiting hole is opened in the center of the limiting plate 101. Protruding clips are symmetrically opened on the inner wall of the limiting groove, and the protruding clips are engaged in the limiting hole.

[0040] In this embodiment, the energy dissipation support component 10 is fixed in the limiting groove of the steel frame by the limiting plates 101 at both ends. The engagement structure between the protruding locking head and the limiting hole can limit the radial displacement of the energy dissipation support component, ensuring that the energy dissipation support component always works along the axial direction and avoiding instability under seismic action. The annular array mounting groove 120 on the connecting disc 110 can simultaneously connect four sets of inclined support rod components to form a spatial energy dissipation system, realizing multi-directional seismic energy dissipation. Under seismic action, the horizontal vibration of the steel frame causes the movable rod 106 and the fixed rod 102 to generate axial relative displacement. The movable rod 106 drives the transmission slider 105 to slide back and forth in the inner cavity 107. On the one hand, the first helical spring 104 undergoes reciprocating compression and stretching deformation, converting the seismic mechanical energy into the elastic energy of the spring and dissipating part of it; on the other hand, the transmission slider 105 generates sliding friction with the inner wall of the outer sleeve 103, converting mechanical energy into heat energy dissipation. Through the dual mechanism of spring deformation and friction sliding, the efficient dissipation of seismic energy is achieved, forming the main energy dissipation defense line of the structure. If the energy-dissipating support components are damaged after an earthquake, the entire assembly can be disassembled and replaced simply by removing the limiting plate from the limiting groove. The operation is convenient and efficient.

[0041] Example 6 Based on Embodiment 5, in this embodiment, each set of inclined support rod assemblies 16 includes an inclined sleeve 163. An SMA piston 166 is slidably disposed inside the inclined sleeve 163. One end of the SMA piston 166 is connected to an inner extension rod 162. The other end of the inner extension rod 162 extends out of the inclined sleeve 163 and is connected to an ear plate 161. The other end of the SMA piston 166 is connected to an inclined support rod 167. The other end of the inclined support rod 167 extends out of the inclined sleeve 163 and is connected to the ear plate 161. A second helical spring 165 is sleeved on the inner extension rod 162 and is connected to the SMA piston 166. The ear plate 161 at the end of the inclined support rod 167 is embedded in the mounting groove 120 of the corresponding connecting disc 110 and connected by a second bolt 20. The ear plate 161 at the end of the inner extension rod 162 is embedded in the corresponding connecting node seat 19, and the second bolt 20 passes through the connecting node seat 19 and is hinged to the hinge hole of the ear plate 161. A pressure sensor 164 is provided at the inner end of the inclined sleeve 163. The pressure sensor 164 is located at the end of the second helical spring 165 away from the SMA piston 166. A first tenon 14 and a second tenon 15 are fixedly connected to the bottom of each upper main plate 11, and the first tenon 14 and the second tenon 15 form an upper tenon groove 13. The first tenon 14 and the second tenon 15 are also fixedly connected to the top of the lower main plate 21. The first tenon 14 and the second tenon 15 of the lower main plate 21 form a lower tenon groove 23. The first tenon 14 of the upper main plate 11 is located in the lower tenon groove 23 of the lower main plate 21, and the first tenon 14 of the lower main plate 21 is located in the upper tenon groove 13 of the upper wall plate 1.

[0042] The steel frame composite wall structure in this embodiment fully realizes a multi-level energy dissipation system consisting of main energy dissipation support, graded energy dissipation of diagonal supports, and auxiliary energy dissipation of wall panels. It also possesses the full functional characteristics of fully detachable components, real-time post-earthquake monitoring, and rapid repair. The specific working principle is as follows: Under seismic action, the structure achieves energy dissipation at all intensity levels: Under minor earthquakes, the energy dissipation support component 10 dissipates the main seismic energy through the deformation of the first helical spring 104 and friction with the transmission slider 105. At the same time, the second helical spring 165 of the inclined support rod component 16 undergoes elastic deformation, achieving primary energy dissipation. The pressure sensor 164 monitors the spring pressure changes in real time and records the structural response data under minor earthquakes. Under moderate earthquakes, the SMA piston 166 of the inclined support rod component 16 reciprocates with the structural displacement. The SMA material undergoes a phase change and nonlinear deformation, dissipating a large amount of seismic energy through the phase change. At the same time, it assists in energy dissipation through friction with the inner wall of the inclined sleeve 163, forming a secondary energy dissipation defense line. The tenon and mortise joint interface of the upper and lower wall panels and the wing plate joint interface generate sliding friction, further assisting in the dissipation of seismic energy. Under major earthquakes, the reciprocating motion of the SMA piston 166 in the inclined sleeve 163 drives the high-viscosity damping fluid in the active cavity to generate shear friction, achieving the third level of energy dissipation, fully dissipating the remaining seismic energy, and ensuring that the main structure does not collapse.

[0043] The upper and lower wall panels are precisely positioned and installed by the mutual wedging of the first tenon 14 with the upper tenon 13 and the lower tenon 23. Simultaneously, the mortise and tenon structure enhances the overall shear resistance of the wall, effectively limiting relative misalignment of the wall panels under seismic loads and preventing cracking. The wall panels are bolted to the rectangular grooves of the steel frame via side flanges, allowing for independent disassembly of individual panels. If a single wall panel is damaged after an earthquake, it can be removed and replaced individually without dismantling surrounding wall panels and the steel frame. The diagonal support rod assembly 16 is hinged at both ends to the connecting disc 110 and the connecting node seat 19 via ear plates 161, adapting to inter-story rotation under seismic loads, preventing bending instability of the diagonal support rod, and ensuring the stability of axial energy dissipation. The pressure sensor 164 monitors the pressure changes of the second helical spring 165 in real time, providing data support for real-time assessment of the structure's seismic performance. After an earthquake, the pressure data can quickly determine the extent of damage to the diagonal support rod assembly, providing accurate information for component replacement and significantly improving the efficiency of post-earthquake repair.

[0044] All components in this embodiment are prefabricated in the factory. On-site work only requires plugging and bolting, without the need for on-site welding or wet work. This results in high construction efficiency, excellent seismic performance, and convenient post-earthquake repair. It can be widely used in various building scenarios in high-intensity seismic fortification zones.

Claims

1. A multi-layered, energy-dissipating, and vibration-damping detachable steel frame composite wall structure, characterized in that: The wall assembly includes a wall panel assembly and a steel frame assembly. The wall assembly includes two upper wall panels (1) and two lower wall panels (2) with rectangular plate-like structures with side wing plates. Each upper wall panel (1) and lower wall panel (2) is detachably connected to the steel frame assembly by bolts. Each upper wall panel (1) has a matching tenon and mortise at the bottom and the lower wall panel (2) at the top. The steel frame assembly is connected to an energy-dissipating support assembly (10) and multiple diagonal support rod assemblies (16) through a connecting node seat (19).

2. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 1, characterized in that, The steel frame assembly includes a first steel frame (3), a second steel frame (4), a third steel frame (5), a fourth steel frame (6), a fifth steel frame (7), and a sixth steel frame (8). The lower end faces of the first steel frame (3) and the third steel frame (5) are fixed with cross-shaped protrusions, and the protrusions are provided with two symmetrical first fixing holes (9). The upper end faces of the fourth steel frame (6) and the sixth steel frame (8) are fixed with cross-shaped concave bodies that are adapted to the cross-shaped protrusions, and the concave bodies are provided with two symmetrical first fixing holes (9) at corresponding positions. The first steel frame (3), the third steel frame (5), the fourth steel frame (6), and the sixth steel frame (8) are respectively connected by bolts. The first steel frame (3) and the third steel frame (5) are symmetrically provided with two first fixing holes (9) at the top and middle. The two upper wall panels (1) are respectively connected to the first steel frame (3) and the third steel frame (5) by bolts. The fourth steel frame (6) and the sixth steel frame (8) have a first fixing hole (9) in the middle. The fourth steel frame (6) and the sixth steel frame (8) are respectively connected to the two lower wall panels (2) by bolts.

3. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 2, characterized in that, The first steel frame (3), the third steel frame (5), the fourth steel frame (6) and the sixth steel frame (8) each have two rectangular grooves on one corresponding side; the second steel frame (4) and the fifth steel frame (7) each have rectangular grooves on both corresponding sides. Each of the upper wall panels (1) includes two symmetrically arranged upper main body panels (11). Each upper main body panel (11) has an upper side wing plate (12) fixed to its two symmetrical sides. The upper side wing plate (12) on one side of each upper main body panel (11) is respectively located in the rectangular groove opened by the first steel frame (3) and the third steel frame (5) and is fixed by the first bolt (17). The upper side wing plate (12) on the other side of the upper main body panel (11) is located in the rectangular groove opened by the second steel frame (4) and is fixed by the first bolt (17). Both of the lower wall panels (2) include a symmetrically arranged lower main body panel (21). Each of the lower main body panels (21) has a lower side wing plate (22) fixed to its two symmetrical sides. The lower side wing plate (22) on one side of each lower main body panel (21) is respectively located in the rectangular groove opened by the fourth steel frame (6) and the sixth steel frame (8) and is fixed by the first bolt (17) and the nut (18). The lower side wing plate (22) on the other side of the lower main body panel (21) is respectively located in the rectangular groove opened by the fifth steel frame (7) and is fixed by the first bolt (17).

4. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 3, characterized in that, The steel frame assembly includes rectangular grooves formed by a first steel frame (3), a second steel frame (4), a third steel frame (5), a fourth steel frame (6), a fifth steel frame (7), and a sixth steel frame (8), which are symmetrically distributed along the central axis of the corresponding steel frame. A limiting groove is formed in the area between the rectangular grooves. The limiting groove is located at the symmetrical center of the two rectangular grooves, and the central axis of the limiting groove coincides with the central axis of the corresponding steel frame.

5. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 3, characterized in that, The first steel frame (3), the second steel frame (4), the third steel frame (5), the fourth steel frame (6), the fifth steel frame (7), and the sixth steel frame (8) have symmetrically opened frame mounting holes on the top and bottom sides of their sides near the wall panel. The frame mounting holes are located on the sides of the rectangular grooves opened in each steel frame. The connecting node seat (19) has a connecting hole (130) and a second fixing hole (191). The connecting node seat (19) is connected to the first steel frame (3), the second steel frame (4), the third steel frame (5), the fourth steel frame (6), the fifth steel frame (7), and the sixth steel frame (8) respectively by bolts.

6. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 5, characterized in that, The energy-consuming support assembly (10) includes a connecting disc (110) and an outer sleeve (103) fixedly connected to each other. Four mounting slots (120) are evenly distributed circumferentially on one end face of the connecting disc (110). The four mounting slots (120) are arranged in a circular, equidistant array with the center of the connecting disc (110) as the center. The mounting slots (120) are coaxially aligned and connected to each other. An inclined support rod assembly (16) is connected within each mounting slot (120). An axially extending inner cavity (107) is provided inside the outer sleeve (103). A first helical spring (104) and a transmission slider (105) are provided within the inner cavity (107). 05), one end of the first helical spring (104) is fixed to one end of the outer sleeve (103), and the other end of the first helical spring (104) is fixed to the transmission slider (105). The transmission slider (105) is fixed to a movable rod (106). The end of the outer sleeve (103) away from the movable rod (106) is fixed to a fixed rod (102). The other ends of the fixed rod (102) and the movable rod (106) are respectively fixed to a limiting plate (101). The limiting plate (101) has a limiting hole in the center. The inner wall of the limiting groove is symmetrically provided with protruding clips. The protruding clips are engaged in the limiting hole.

7. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 6, characterized in that, Each of the inclined support rod assemblies (16) includes an inclined sleeve (163), an SMA piston (166) is slidably disposed in the inner cavity of the inclined sleeve (163), one end of the SMA piston (166) is connected to an inner extension rod (162), the other end of the inner extension rod (162) extends out of the inclined sleeve (163) and is connected to an ear plate (161), the other end of the SMA piston (166) is connected to an inclined support rod (167), the other end of the inclined support rod (167) extends out of the inclined sleeve (163) and is connected to the ear plate (161), and a helical spring (165) is sleeved on the inner extension rod (162), the helical spring (165) is connected to the SMA piston (166); The ear plate (161) at the end of the inclined support rod (167) is embedded in the mounting groove (120) of the corresponding connecting disc (110) and connected by the second bolt (20); the ear plate (161) at the end of the inner extension rod (162) is embedded in the corresponding connecting node seat (19), and the second bolt (20) passes through the connecting node seat (19) and is hinged to the hinge hole of the ear plate (161).

8. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 7, characterized in that, The inner end of the inclined sleeve (163) is provided with a pressure sensor (164), which is located at the end of the second helical spring (165) away from the SMA piston (166).

9. The multi-layered energy-dissipating and vibration-damping detachable steel frame composite wall structure according to claim 1, characterized in that, Each of the upper main body plates (11) has a first tenon (14) and a second tenon (15) fixedly connected to its bottom, and the first tenon (14) and the second tenon (15) form an upper tenon groove (13); the lower main body plate (21) also has a first tenon (14) and a second tenon (15) fixedly connected to its top; the first tenon (14) and the second tenon (15) of the lower main body plate (21) form a lower tenon groove (23); the first tenon (14) of the upper main body plate (11) is located in the lower tenon groove (23) of the lower main body plate (21), and the first tenon (14) of the lower main body plate (21) is located in the upper tenon groove (13) of the upper wall plate (1).

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