Anti-axial-pressure assembly type steel plate energy dissipater for frame structure with double beams

Abstract

The invention relates to the technical field of earthquake resistance of building structures, in particular to an anti-axial-pressure assembly type steel plate energy dissipater for a frame structure with double beams, which comprises an energy dissipation assembly and a bearing assembly which are mounted between the double beams and a longitudinal beam, and the energy dissipation assembly comprises an inner side energy dissipation assembly and an outer side energy dissipation assembly which have the same structure and are symmetrically arranged; the lower ends of the bearing assemblies are connected with longitudinal beams; the energy dissipation assembly comprises an energy dissipation piece, an upper connecting plate, a lower connecting plate and a clamping plate, the upper end of the upper connecting plate is connected with the double beams, the upper end of the energy dissipation piece is clamped between the upper connecting plate and the clamping plate, the lower end of the lower connecting plate is connected with the bearing assembly, and the lower end of the energy dissipation piece is clamped between the lower connecting plate and the clamping plate. The energy dissipater can meet the installation requirement of a double-beam frame structure, horizontal displacement of double beams can be effectively transmitted, meanwhile, the axial force influence generated by the frame structure under the earthquake action is absorbed, the energy dissipation efficiency and stability of the energy dissipater are improved, and the anti-seismic toughness of a building structure is improved.

Description

Technical Field

[0001] This invention relates to the field of seismic resistance technology for building structures, and in particular to an anti-axial compression prefabricated steel plate energy dissipator for structures with double-beam frames. Background Technology

[0002] In building construction, frame structures are widely used in various urban buildings due to their rational stress distribution and convenient construction. Industrial plants such as power plants and nuclear power plants often employ double-beam frame structures with large floor heights to meet design requirements and functional needs. Under earthquake action, frame structures are prone to inter-story relative displacement. By installing energy dissipation and damping devices between floors, seismic energy can be dissipated through the plastic deformation of the devices, reducing damage to the main structure. The core of energy dissipation and damping devices is to absorb seismic energy through the deformation of energy-dissipating elements; their operational stability directly affects the seismic safety of the building.

[0003] Currently, most energy dissipation and vibration damping devices (energy absorbers) used in frame structures are prefabricated steel plate energy absorbers. These devices typically include energy absorber plates, connecting plates, and fasteners. The structural design of existing energy absorbers is not adapted to the structural characteristics of double-beam frames. Double-beam frames consist of inner and outer beams, and the connection structure of existing devices cannot effectively connect with both beams simultaneously, making it difficult to evenly transfer the horizontal displacement of the beams. This results in uneven stress on the energy absorber plates, affecting energy dissipation efficiency. Furthermore, existing energy absorbers lack targeted anti-axial compression design. When a frame structure encounters an earthquake, inter-story slippage occurs, leading to a periodic reduction in story height and a significant vertical compression effect. This, in turn, applies a regularly changing unfavorable axial force to the energy absorbers installed between stories. Existing devices cannot absorb this axial force and are prone to premature failure due to the axial force. This failure risk is even more pronounced in factory buildings with large story heights. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an anti-axial compression prefabricated steel plate energy dissipator for double-beam frame structures. This energy dissipator is adaptable to the installation requirements of double-beam frame structures, effectively transmits the horizontal displacement of the double beams, and absorbs the axial force generated by the frame structure under seismic action, thereby improving the energy dissipation efficiency and stability of the energy dissipator and enhancing the seismic toughness of the building structure.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: An anti-axial compression prefabricated steel plate energy dissipator for a double-beam frame structure includes an energy dissipation component and a load-bearing component installed between the double beams and the longitudinal beams. The energy dissipation component includes an inner energy dissipation component and an outer energy dissipation component that are structurally identical and symmetrically arranged. The lower end of the load-bearing component is connected to the longitudinal beams. The energy dissipation component includes an energy dissipation plate, an upper connecting plate, a lower connecting plate, and a clamping plate. The upper end of the upper connecting plate is connected to the double beams, the upper end of the energy dissipation plate is clamped between the upper connecting plate and the clamping plate, the lower end of the lower connecting plate is connected to the load-bearing component, and the lower end of the energy dissipation plate is clamped between the lower connecting plate and the clamping plate.

[0006] Optionally, the energy dissipation plate is an X-shaped optimized energy dissipation plate, including an upper connecting part, a lower connecting part, and an energy dissipation part located between the upper connecting part and the lower connecting part. The energy dissipation part has an X-shaped structure. The upper connecting part is installed between the upper connecting plate and the clamping plate, and the lower connecting part is installed between the lower connecting plate and the clamping plate.

[0007] Optionally, the edge of the energy dissipation section is an arc-shaped structure, including vertical optimized edges on the left and right sides of the X-shaped structure and horizontal optimized edges on the top and bottom sides.

[0008] Optionally, the double beams of the frame structure include an inner beam and an outer beam. The energy dissipation plate of the inner energy dissipation component is connected to the inner beam, and the energy dissipation plate of the outer energy dissipation component is connected to the outer beam. The angle between the energy dissipation plate and the horizontal plane is between 45° and 60°. The energy dissipation plates of the inner and outer energy dissipation components are arranged in an inverted V-shape.

[0009] Optionally, both the upper connecting plate and the lower connecting plate are bent structures. The upper bent part of the upper connecting plate is installed on the inner side of the double beam, and the lower bent part is connected to the energy dissipation plate. The lower bent part of the lower connecting plate is installed on the top surface of the load-bearing component, and the upper bent part is connected to the energy dissipation plate.

[0010] Optionally, the upper connecting plate and the double beam, and the lower connecting plate and the load-bearing component are connected by anchor bolts and nuts, the anchor bolts being ductile, and the upper connecting plate and the energy dissipation plate, and the lower connecting plate and the energy dissipation plate are connected by bolts and nuts.

[0011] Optionally, the upper connecting plate, lower connecting plate, energy dissipation plate and clamping plate are all provided with bolt holes for bolts to pass through, and the diameter of the bolt holes on the energy dissipation plate and clamping plate is 2-4 mm larger than the bolt diameter.

[0012] Optionally, the inner side of the clamping plate is a friction surface, and the outer sides of the upper and lower connecting parts of the energy dissipation plate are also friction surfaces.

[0013] Optionally, the load-bearing component includes a base and a herringbone support, with the lower connecting plate mounted on top of the base, the top of the herringbone support connected to the base, and the bottom connected to the longitudinal beam of the frame structure.

[0014] Optionally, the herringbone support includes a support rod, a support base plate, and an anchor rod. The support rod is connected between the base and the support base plate, and the anchor rod is located on the underside of the support base plate. The support base plate and the anchor rod are embedded in the longitudinal beams of the frame structure.

[0015] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: 1. In the energy dissipator of this invention, the energy dissipation components are symmetrically arranged on the inner and outer sides, which can simultaneously adapt to the displacement differences between the inner and outer beams of a double-beam frame. By clamping the energy dissipation plates between the upper connecting plate, the lower connecting plate, and the clamping plate, a stable clamping connection is formed. Under seismic loading, the horizontal displacement of the frame structure is transmitted to the energy dissipation plates through the connecting plates, causing the energy dissipation plates to undergo plastic deformation to dissipate energy. This symmetrical arrangement and clamping structure helps to disperse stress, avoid overloading of the energy dissipation components on one side, and improve the overall stability of operation. The synergistic effect of the energy dissipation components and the load-bearing components enables the energy dissipator to withstand the inter-story shear deformation of the frame while resisting the axial compression effect generated by the frame structure under seismic loading, thereby improving the energy dissipation efficiency and stability of the energy dissipator and enhancing the seismic toughness of the building structure.

[0016] 2. Under seismic loading, the energy dissipator of this invention generates relative shear displacement and axial compression between the double beams and longitudinal beams of the frame structure. The shear displacement drives the energy dissipator into plastic energy dissipation, protecting the main structure from damage. The angled design of the energy dissipator utilizes out-of-plane elastic buckling to absorb the inter-story axial compression effect of the frame structure, allowing the energy dissipator to stably perform its energy dissipation capacity. The all-bolted assembly of the energy dissipation components allows for rapid replacement of damaged parts after an earthquake, increasing the speed of restoring the building's usability. The X-type optimized energy dissipation sheet uses a data-physical fusion method for cross-sectional optimization, alleviating stress concentration and further enhancing its energy dissipation capacity.

[0017] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the dimensions or spacing between the components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0019] Figure 1 This is a schematic diagram of the overall energy dissipator provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the X-type optimized energy dissipation sheet provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the explosion of the outer energy dissipation component provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly of the outer energy dissipation component provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the assembly of the inner and outer energy dissipation components provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the base and herringbone support provided in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the application of the energy dissipator provided in an embodiment of the present invention on a frame structure with double beams; In the diagram: Ⅰ. Inner energy dissipation component; Ⅱ. Outer energy dissipation component; 1. X-shaped optimized energy dissipation plate; 101. End friction surface; 102. Vertical optimized edge; 103. Horizontal optimized edge; 104. Enlarged hole of energy dissipation plate; 21. Upper inner connecting plate; 22. Lower inner L-shaped connecting plate; 31. Upper outer connecting plate; 32. Lower outer L-shaped connecting plate; 4. Stress dispersion reinforced clamping plate; 401. Inner friction surface; 402. Enlarged hole of clamping plate; 5. High-strength bolt; 501. High-strength washer; 502. High-strength nut; 6. High-ductility anchor bolt; 601. High-ductility nut; 602. High-ductility washer; 7. Base; 701. Deep threaded hole; 8. Herringbone support; 801. Support base plate; 802. Anchor rod; 9. Double beam; 91. Inner beam; 92. Outer beam; 10. Longitudinal beam; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Example 1 like Figure 1 , 7 As shown, the frame structure includes an upper double beam 9 and a lower longitudinal beam 10. The energy dissipator includes an energy dissipation component and a load-bearing component installed between the double beam 9 and the longitudinal beam 10. The energy dissipation component includes an inner energy dissipation component I and an outer energy dissipation component II with the same structure and arranged symmetrically. The lower end of the load-bearing component is connected to the longitudinal beam 10.

[0021] like Figure 3 , Figure 4 As shown, the energy dissipation assembly includes an energy dissipation plate, an upper connecting plate (upper inner connecting plate 21, upper outer connecting plate 31), a lower connecting plate (lower inner L-shaped connecting plate 22, lower outer L-shaped connecting plate 32), and a clamping plate. The upper end of the upper connecting plate is connected to the double beam 9. The upper end of the energy dissipation plate is clamped between the upper connecting plate and the clamping plate. The lower end of the lower connecting plate is connected to the load-bearing assembly. The lower end of the energy dissipation plate is clamped between the lower connecting plate and the clamping plate.

[0022] Energy dissipation components and load-bearing components are installed between the upper double beams 9 and the lower longitudinal beams 10 of the frame structure. The energy dissipation components are divided into inner energy dissipation component I and outer energy dissipation component II, which are structurally identical and symmetrically arranged. This symmetrical design precisely adapts to the structural characteristics of the double beam 9 frame, allowing the horizontal displacement generated by the double beams 9 to be evenly transmitted to the two energy dissipation components, avoiding overload on any single energy dissipation component. The lower end of the load-bearing component connects to the longitudinal beams 10, providing stable support for the energy dissipation components and transmitting the displacement and force of the longitudinal beams 10 to the energy dissipation components. The upper connecting plate of the energy dissipation component connects to the double beams 9 at its upper end, directly accepting the horizontal displacement of the double beams 9. The lower connecting plate connects to the load-bearing component at its lower end, allowing the displacement of the longitudinal beams 10 to be transmitted to the energy dissipation plates through the load-bearing component and the lower connecting plate. When an earthquake occurs, the relative horizontal displacement between the double beams 9 and the longitudinal beams 10 drives the energy dissipation plates to undergo plastic deformation, thereby dissipating seismic energy.

[0023] like Figure 2 As shown, the energy dissipation plate is an X-shaped optimized energy dissipation plate 1, including an upper connecting part, a lower connecting part, and an energy dissipation part located between the upper connecting part and the lower connecting part. The energy dissipation part has an X-shaped structure. The upper connecting part is installed between the upper connecting plate and the clamping plate, and the lower connecting part is installed between the lower connecting plate and the clamping plate.

[0024] The energy dissipation section between the upper and lower connecting parts is designed as an X-shaped structure. Compared with the traditional rectangular structure, the X-shaped structure has a larger deformation space and can generate more sufficient plastic deformation during an earthquake, thereby more effectively dissipating earthquake energy, alleviating the stress concentration phenomenon caused by the unreasonable cross-sectional design of traditional energy dissipation plates, and improving the energy dissipation capacity and service life of the energy dissipation plates.

[0025] The edge of the energy dissipation section is an arc-shaped structure, including vertical optimized edges 102 on the left and right sides of the X-shaped structure and horizontal optimized edges 103 on the top and bottom sides.

[0026] The curved edges avoid stress concentration that occurs with traditional right-angled edges, reducing the risk of cracks or fractures due to excessive stress at the energy dissipation section edges. The vertically optimized edge 102, designed based on equivalent strength theory, ensures similar equivalent strength on both sides of the energy dissipation section, resulting in a more uniform stress distribution in the vertical direction. The transversely optimized edge 103, through finite element simulation analysis and mathematical optimization algorithms, iteratively drills holes in this area to induce the entire cross-section of the energy dissipation section to simultaneously enter the yield state, improving the energy dissipation efficiency and operational stability of the section.

[0027] When an earthquake occurs, the vertical edge of the X-type optimized energy dissipator 1 is optimized based on the equivalent strength theory to make the equivalent strength of the edge similar and the stress distribution uniform. The horizontal edge is analyzed by finite element simulation based on the optimization of the vertical edge. The mathematical optimization algorithm is used to repeatedly drill holes in the area to make the entire cross section yield at the same time, disperse the stress concentration phenomenon, make it perform stable working characteristics and significantly improve ductility.

[0028] like Figure 5 As shown, the double beam 9 of the frame structure includes an inner beam 91 and an outer beam 92. The energy dissipation plate of the inner energy dissipation component I is connected to the inner beam 91, and the energy dissipation plate of the outer energy dissipation component II is connected to the outer beam 92. The angle between the energy dissipation plate and the horizontal plane is between 45° and 60°. The energy dissipation plates of the inner energy dissipation component I and the outer energy dissipation component II are arranged in an inverted V-shape.

[0029] The angle and arrangement of the energy dissipation plates can fully utilize their out-of-plane elastic buckling characteristics. When an earthquake causes reciprocating shear deformation in the upper and lower beams of a frame structure, resulting in regularly changing unfavorable axial forces, the energy dissipation plates arranged in an inverted V-shape with a specific angle can absorb these axial forces through out-of-plane elastic buckling. This prevents the axial forces from directly acting on the plastic deformation area of ​​the energy dissipation plates, thus avoiding premature failure of the energy dissipation devices. At the same time, it ensures that horizontal displacement can effectively drive the energy dissipation plates to undergo plastic deformation and dissipate energy.

[0030] like Figure 3 , Figure 4 As shown, both the upper connecting plate and the lower connecting plate are bent structures. The upper bent part of the upper connecting plate is installed on the inner side of the double beam 9, and the lower bent part is connected to the energy dissipation plate. The lower bent part of the lower connecting plate is installed on the top surface of the load-bearing component, and the upper bent part is connected to the energy dissipation plate.

[0031] The bent structure better adapts to the installation position requirements of the double beams 9 and the load-bearing components, allowing for a tighter connection between the connecting plate and the double beams 9, the load-bearing components, and the energy dissipation plates, reducing force transmission lag or instability caused by connection gaps. The upper bent portion of the upper connecting plate is installed on the inner side of the double beams 9, enhancing the connection strength between the upper connecting plate and the double beams 9, while preventing the connecting plate from protruding beyond the outer side of the double beams 9 and affecting other structures. The lower bent portion of the lower connecting plate is installed on the top surface of the load-bearing components, stably receiving the displacement of the longitudinal beams 10 transmitted by the load-bearing components. The overall connection position is reasonable, and the force transmission is smooth.

[0032] The upper connecting plate is connected to the double beam 9, and the lower connecting plate is connected to the load-bearing component by anchor bolts and nuts. The anchor bolts are ductile. The upper connecting plate is connected to the energy dissipation plate, and the lower connecting plate is connected to the energy dissipation plate by bolts and nuts.

[0033] Ductile anchors are typically made of shape memory alloys and possess shape memory functionality. When a strong earthquake causes accidental insufficient bearing capacity at the connection points between the upper connecting plate and the double beams 9, or between the lower connecting plate and the load-bearing components, the ductile anchors can deform moderately, alleviating stress concentration at the connection points and preventing direct damage. After the earthquake, the ductile anchors can automatically return to their initial state without repair or replacement, reducing post-earthquake maintenance costs and time. The upper connecting plate and the energy dissipation plate, as well as the lower connecting plate and the energy dissipation plate, are connected using bolts and nuts, facilitating easy assembly and disassembly. This allows for convenient adjustment of the energy dissipation components during installation and rapid replacement of damaged energy dissipation plates after an earthquake, improving installation and post-earthquake recovery efficiency.

[0034] The upper connecting plate, lower connecting plate, energy dissipation plate, and clamping plate are all provided with bolt holes for bolts to pass through. The diameter of the bolt holes (energy dissipation plate enlarged hole 104, clamping plate enlarged hole 402) on the energy dissipation plate and clamping plate is 2-4mm larger than the bolt diameter. When an earthquake causes horizontal displacement of the frame structure, the bolt can move slightly in the bolt hole.

[0035] The inner side of the clamping plate is a friction surface (inner friction surface 401), and the outer sides of the upper and lower connecting parts of the energy dissipation plate are also friction surfaces (end friction surface 101).

[0036] The friction surfaces can be roughened by sandblasting or shot blasting. Under the preload of the high-strength bolt 5, high-strength nut 502, and high-strength washer 501, greater friction is generated between the friction surfaces, improving the connection's anti-slip capability. The design of the friction surfaces ensures that horizontal shear force is effectively transferred to the energy dissipation plate. Combined with large-diameter bolt holes, this reduces the shear load on the bolts, allowing the energy dissipation plate to enter the plastic working state earlier and optimizing the energy dissipation process.

[0037] like Figure 6As shown, the load-bearing assembly includes a base 7 and a herringbone support 8. The lower connecting plate is installed on the top of the base 7. The top of the herringbone support 8 is connected to the base 7, and the bottom is connected to the longitudinal beam 10 of the frame structure. The base 7 has a deep threaded hole 701, and the upper part of the structure is connected by a high-ductility anchor bolt 6, a high-ductility nut 601, and a high-ductility washer 602. Its lower part is welded to the herringbone support 8.

[0038] The base 7, acting as an intermediate connecting component, stably transfers the force from the herringbone support 8 to the energy dissipation plate via the lower connecting plate. Compared to single-bar supports, the herringbone structure offers greater stability and resistance to lateral displacement, effectively resisting the horizontal and vertical forces generated by the longitudinal beam 10 under seismic loads, preventing the load-bearing components from tilting or breaking due to excessive stress. Through the cooperation of the base 7 and the herringbone support 8, vertical support is provided for the entire energy dissipator, while simultaneously and stably transferring the horizontal displacement of the longitudinal beam 10 to the lower connecting plate, and subsequently to the energy dissipation plate.

[0039] The herringbone support 8 includes a support rod, a support base plate 801, and an anchor rod 802. The support rod is connected between the base 7 and the support base plate 801. The anchor rod 802 is located on the lower side of the support base plate 801. The support base plate 801 and the anchor rod 802 are embedded in the longitudinal beam 10 of the frame structure.

[0040] The pre-embedded installation method allows the support base plate 801 and anchor rod 802 to form an integral whole with the longitudinal beam 10. Compared with the traditional surface connection method, the connection strength is higher and it can effectively resist the pull-out force and shear force generated under the earthquake action, preventing the connection between the herringbone support 8 and the longitudinal beam 10 from loosening or separating.

[0041] This energy dissipator employs inner and outer energy dissipation components II with angled joints, connected to the frame structure beams via high-ductility anchor bolts 6. When the frame structure experiences shear displacement and axial displacement during an earthquake, the shear displacement drives the energy dissipation plates into plastic energy dissipation, while the outward elastic buckling of the energy dissipation plates counteracts the axial deformation of the frame structure, allowing the energy dissipator to exert stable energy dissipation capabilities. The stress dispersion reinforcement plate 4, optimized energy dissipation plate cross-section, and high-ductility anchor bolts 6 ensure uniform stress distribution throughout the entire stress chain of the energy dissipator, enhancing its ductility and stability. Furthermore, the all-bolted assembly of the energy dissipation components facilitates installation and allows for rapid replacement of damaged parts after an earthquake, shortening the time for structural functional recovery and improving the building's seismic resilience.

[0042] While the specific embodiments of the present invention have been described above, they are not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A prefabricated steel plate energy dissipator with a double-beam frame structure and designed to resist axial compression, the frame structure comprising upper double beams and lower longitudinal beams, characterized in that, The energy dissipator includes an energy dissipation component and a load-bearing component installed between the double beams and the longitudinal beam. The energy dissipation component includes an inner energy dissipation component and an outer energy dissipation component that are identical in structure and symmetrically arranged. The lower end of the load-bearing component is connected to the longitudinal beam. The energy dissipation component includes an energy dissipation plate, an upper connecting plate, a lower connecting plate, and a clamping plate. The upper end of the upper connecting plate is connected to the double beam, the upper end of the energy dissipation plate is clamped between the upper connecting plate and the clamping plate, the lower end of the lower connecting plate is connected to the load-bearing component, and the lower end of the energy dissipation plate is clamped between the lower connecting plate and the clamping plate.

2. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 1, characterized in that, The energy dissipation plate is an X-shaped optimized energy dissipation plate, including an upper connecting part, a lower connecting part, and an energy dissipation part located between the upper connecting part and the lower connecting part. The energy dissipation part has an X-shaped structure. The upper connecting part is installed between the upper connecting plate and the clamping plate, and the lower connecting part is installed between the lower connecting plate and the clamping plate.

3. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 2, characterized in that, The edge of the energy dissipation section is an arc-shaped structure, including vertical optimized edges on the left and right sides of the X-shaped structure and horizontal optimized edges on the top and bottom sides.

4. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 1, characterized in that, The frame structure has two beams, including an inner beam and an outer beam. The energy dissipation plate of the inner energy dissipation component is connected to the inner beam, and the energy dissipation plate of the outer energy dissipation component is connected to the outer beam. The angle between the energy dissipation plate and the horizontal plane is between 45° and 60°. The energy dissipation plates of the inner and outer energy dissipation components are arranged in an inverted V-shape.

5. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 2, characterized in that, Both the upper and lower connecting plates are bent structures. The upper bent part of the upper connecting plate is installed on the inner side of the double beam, and the lower bent part is connected to the energy dissipation plate. The lower bent part of the lower connecting plate is installed on the top surface of the load-bearing component, and the upper bent part is connected to the energy dissipation plate.

6. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 5, characterized in that, The upper connecting plate is connected to the double beam, and the lower connecting plate is connected to the load-bearing component by anchor bolts and nuts. The anchor bolts are ductile. The upper connecting plate is connected to the energy dissipation plate, and the lower connecting plate is connected to the energy dissipation plate by bolts and nuts.

7. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 6, characterized in that, The upper connecting plate, lower connecting plate, energy dissipation plate, and clamping plate are all provided with bolt holes for bolts to pass through. The diameter of the bolt holes on the energy dissipation plate and clamping plate is 2-4 mm larger than the bolt diameter.

8. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 7, characterized in that, The inner side of the clamping plate is a friction surface, and the outer sides of the upper and lower connecting parts of the energy dissipation plate are also friction surfaces.

9. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 1, characterized in that, The load-bearing component includes a base and a herringbone support. The lower connecting plate is installed on the top of the base. The top of the herringbone support is connected to the base, and the bottom is connected to the longitudinal beam of the frame structure.

10. The anti-axial compression prefabricated steel plate energy dissipator with a double-beam frame structure as described in claim 9, characterized in that, The herringbone support includes a support rod, a support base plate, and an anchor rod. The support rod is connected between the base and the support base plate, and the anchor rod is located on the underside of the support base plate. The support base plate and the anchor rod are embedded in the longitudinal beams of the frame structure.

Images