Bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation damping device
By employing a bending-resistance parallel dog-bone hole soft steel plate laminated with rubber and lead plate energy dissipation and vibration reduction device in the steel frame-support structure, the problem of unstable performance of existing energy dissipation and vibration reduction devices under temperature changes is solved, achieving energy dissipation and vibration reduction effects and seismic toughness through multiple seismic defense lines, and adapting to the needs of different earthquake magnitudes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2024-12-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing energy dissipation and vibration reduction devices, such as viscous dampers and metal dampers, are unstable under temperature changes and are difficult to design according to the seismic requirements of the structure. Traditional soft steel dampers have low initial stiffness and large yield displacement, which cannot meet the needs of multiple seismic defense lines.
A bending parallel dog bone hole soft steel plate laminated with rubber-lead plate energy dissipation and vibration reduction device is adopted. The steel frame and the supporting structure are connected by high-strength bolts. The yield deformation of the soft steel plate, the plastic deformation of the lead plate and the restoring force of the rubber are used to form a multi-cavity structure. Combined with the high elasticity and heat resistance of vulcanized rubber, energy dissipation and vibration reduction of multiple seismic defense lines are achieved.
Under minor or moderate earthquakes, it exhibits high shear stiffness and controls inter-story displacement; under major earthquakes, the plastic deformation of the lead plate dissipates energy, while the synergistic deformation of the soft steel plate and rubber provides restoring force, thereby enhancing energy dissipation and vibration reduction effects and seismic toughness, and adapting to the needs of different earthquake magnitudes.
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Figure CN224314400U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bending parallel dog bone hole soft steel plate laminated with rubber and lead plate energy dissipation and vibration reduction device for steel frame-support structure, belonging to the field of building vibration reduction technology. Background Technology
[0002] Three technologies are typically used to economically, efficiently, and rationally improve a building's resistance to earthquake damage and collapse: first, seismic design technology, which employs efficient seismic-resistant structural systems and high-performance seismic-resistant components to enhance the structure's seismic resistance; second, seismic isolation design technology, which uses base isolation devices to reduce the impact of earthquakes on the superstructure; and third, energy dissipation and damping technology, which uses energy dissipation and damping devices to absorb the energy input into the structure during earthquakes, reducing structural damage. Weak energy dissipation and damping devices can be replaced if damaged during strong earthquakes. Seismic isolation and damping technologies can be applied in combination.
[0003] The engineering community both domestically and internationally has always attached great importance to the research and development of new energy dissipation and vibration reduction devices. Currently, energy dissipation and vibration reduction devices mainly include viscous dampers, metallic dampers, and friction dampers. However, there is a significant lack of functionally recoverable energy dissipation and vibration reduction devices and manufacturing technologies suitable for performance-based design and possessing multiple seismic defense lines.
[0004] This utility model proposes a bending-resistant parallel dog-bone hole soft steel plate laminated with rubber and lead plate for steel frame-braced structures, belonging to the field of building vibration reduction technology. The device consists of an upper connecting steel plate with round holes connected to the lower flange of an H-shaped steel frame beam; a lower connecting steel plate connected to the connecting end steel plate welded to the intersection area of the H-shaped steel herringbone support; a bending-resistant parallel dog-bone hole soft steel plate welded between the upper and lower connecting steel plates; left and right sealing dog-bone hole soft steel plates welded between the upper and lower connecting steel plates; lead plates inserted and bonded to the front and rear ends of the cavity of the parallel dog-bone hole soft steel plate; front and rear sealing soft steel plates welded between the upper and lower connecting steel plates; laminated vulcanized rubber injected into the cavity of the parallel dog-bone hole soft steel plate through the round hole of the upper connecting steel plate; and a high-strength bolt system connecting the upper and lower connecting steel plates to the steel frame-braced structure. Under minor or moderate earthquakes, the front and rear sealing soft steel plates and the rectangular blocks of soft steel plates with parallel dog-bone holes in this energy dissipation and damping device can effectively control inter-story displacement by exerting high shear stiffness. Under major earthquakes, the front and rear sealing soft steel plates of this energy dissipation and damping device gradually shear and yield, consuming seismic energy. As deformation increases, the lead plate undergoes plastic deformation, consuming seismic energy. The rectangular blocks of soft steel plates with parallel dog-bone holes gradually degenerate from shear resistance to their respective bending resistance. The cross-section of the soft steel plates with parallel dog-bone holes undergoes near-equal-strength bending plastic deformation, consuming seismic energy. The rubber and soft steel plates that penetrate the soft steel plates with parallel dog-bone holes undergo synergistic bending deformation and provide restoring force, which can effectively improve the energy dissipation and damping effect and seismic toughness of the device.
[0005] Technical bottlenecks: 1. Viscous dampers are significantly affected by temperature, failing to achieve their full damping capacity at high or low temperatures. Aging of the internal medium leads to unstable damping force. Due to the high pressure and high-speed flow of the medium within the damper, seals are prone to damage and leakage over long-term operation, resulting in high maintenance costs. 2. Viscoelastic and lead viscoelastic dampers also suffer from sensitivity to environmental temperature and significant environmental influences on damping parameters. 3. Metal dampers utilize the elasto-plastic hysteretic deformation of metal components made from low-yield-point steel and other materials to dissipate energy. They are less affected by external environmental and temperature changes, but suffer from low initial stiffness and large yield displacement. This means they cannot provide sufficient stiffness under small earthquakes, and while they begin to dissipate energy under large earthquakes, their recoverability is poor, making performance-based design difficult to meet structural seismic requirements. Technical bottleneck: A vibration damping device and manufacturing method that combines the advantages of soft steel yield deformation energy dissipation, lead plate plastic deformation energy dissipation, and rubber providing restoring force, assembled between a steel frame and herringbone steel supports. Summary of the Invention
[0006] To address the aforementioned problems, this utility model proposes a bending-resistant parallel dog-bone hole soft steel plate laminated with rubber and lead plate energy dissipation and vibration reduction device for steel frame-braced structures:
[0007] The aforementioned bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device consists of an upper connecting steel plate with round holes connected to the lower flange of the H-shaped steel frame beam, a lower connecting steel plate connected to the connecting end steel plate welded to the intersection area of the H-shaped steel herringbone support, a bending parallel dog-bone hole soft steel plate welded between the upper and lower connecting steel plates, left and right sealing skin dog-bone hole soft steel plates welded between the upper and lower connecting steel plates, lead plates inserted and bonded to the front and rear ends of the cavity of the parallel dog-bone hole soft steel plate, front and rear sealing soft steel plates welded between the upper and lower connecting steel plates, laminated vulcanized rubber injected into the cavity of the parallel dog-bone hole soft steel plate through the round hole of the upper connecting steel plate, and a high-strength bolt system connecting the upper and lower connecting steel plates to the steel frame-support structure.
[0008] The aforementioned dog-bone hole mild steel plate is a mild steel plate after punching out a series of polygonal holes in a dog-bone pattern from a rectangular mild steel plate.
[0009] The aforementioned bending-resistant parallel dog-bone hole soft steel plate is a set of parallel dog-bone hole soft steel plates welded between the upper and lower connecting steel plates of the energy dissipation and vibration reduction device, which are mainly subjected to bending deformation.
[0010] The left and right side sealing skin dog bone hole soft steel plate is a rectangular soft thin steel plate with the same perimeter size as the dog bone hole soft steel plate. It is welded from the outside to the dog bone hole soft steel plate and then welded to the soft steel plates at the left and right ends of the upper and lower connecting steel plates of the energy dissipation and vibration reduction device.
[0011] The lead plates inserted and bonded to the front and rear ends of the cavity of the soft steel plate with parallel dog bone holes are rectangular lead plates that are inserted and bonded to the front and rear ends of the cavity of the soft steel plate with parallel dog bone holes.
[0012] The aforementioned front and rear sealing soft steel plates are rectangular soft steel plates, welded to the front and rear sides between the upper and lower connecting steel plates of the energy dissipation and vibration reduction device, and welded to the left and right sealing skin dog bone hole soft steel plates, forming a multi-cavity structure with the bending parallel dog bone hole soft steel plates and the left and right sealing skin dog bone hole soft steel plates.
[0013] The aforementioned laminated vulcanized rubber is a structure formed by pouring hot vulcanized rubber into the cavity of the energy dissipation and shock absorption device, which consists of a dog-bone hole soft steel plate, left and right side sealing skin dog-bone hole soft steel plates, and front and rear sealing soft steel plates. The molten vulcanized rubber flows and connects through the openings on the dog-bone hole soft steel plates, and is then cooled and molded to form a laminated rubber structure.
[0014] The energy dissipation and vibration reduction device assembly connection structure refers to the upper connecting steel plate with round holes being connected to the lower flange of the steel frame H-beam by high-strength bolts, and the lower connecting steel plate being connected to the steel plate at the intersection area of the H-beam herringbone support by welding. The connection adopts a high-strength bolt assembly connection structure.
[0015] To achieve the above objectives, the present invention adopts the following technical solution:
[0016] A bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device, which is connected and assembled with a steel frame-support structure using high-strength bolts, includes a steel frame-support structure 1 and a bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 disposed within the steel frame-support structure 1; the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 is arranged sequentially along the middle of the steel frame-support structure 1; the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 includes a multi-cavity steel component formed by welding an upper connecting steel plate with round holes 7, a lower connecting steel plate 8, a sealing skin dog-bone hole soft steel plate 9, a bending parallel dog-bone hole soft steel plate 10, rectangular lead plates 11 that are respectively inserted and bonded to seal the cavity of the parallel dog-bone hole soft steel plate from the front and back, and front and rear sealing soft steel plates 12, and vulcanized laminated rubber 13 injected into the multi-cavity steel component.
[0017] Further, the steel frame-support structure 1 includes steel frame H-shaped steel columns 2, steel frame H-shaped steel beams 3, H-shaped steel herringbone supports 4, and connecting end steel plates 5 welded to the upper intersection area of the supports; the steel frame H-shaped steel columns 2 and the upper and lower steel frame H-shaped steel beams 3 are connected by high-strength bolts 14 to form a steel frame, and the connecting end steel plate component welded to the upper region of the H-shaped steel herringbone support 4 is connected to the upper flange of the lower H-shaped steel beam by high-strength bolts 14. The steel frame H-shaped steel columns 2 and steel frame H-shaped steel beams 3 are made of welded or rolled H-shaped steel; the bottom of the steel frame H-shaped steel columns 2 is welded with a connecting base plate and stiffening ribs, and the connecting base plate is connected to the pre-embedded bolts in the foundation to form the steel frame column base; the ends of the frame H-shaped steel beams 3 are welded with rectangular end plates, and bolt holes are opened on the rectangular end plates. The bolt holes on the rectangular end plates correspond to the bolt holes on the steel frame H-shaped steel columns 2, and are connected by high-strength bolts; the thickness of the rectangular end plates welded to the ends of the steel frame H-shaped steel beams 3 is not less than that of the steel frame. The thickness of the flange of H-beam column 2; stiffening ribs are welded to both sides of the web of H-beam column 2 in the steel frame beam-column joint area, and the welding position of the stiffening ribs is consistent with the elevation of the upper and lower flanges of H-beam 3; stiffening ribs are welded to both sides of the web of H-beam at both ends of the connection area between the upper connecting steel plate 7 with the lower flange of H-beam 3, and the thickness of the stiffening ribs is not less than the thickness of the web of the beam; H-beam herringbone support 4 is a symmetrically arranged diagonal H-beam, and the connecting end steel plate 5 is welded to the upper intersection area of H-beam herringbone support 4; the connecting end steel plate 5 welded to the upper intersection area of H-beam herringbone support 4 and the lower connecting steel plate 8 are connected by high-strength bolts 14; the horizontal angle between H-beam herringbone support 4 and H-beam 3 of steel frame is 45°~60°.
[0018] Furthermore, in the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6, multiple bending parallel dog-bone hole soft steel plates 10 are arranged vertically side by side, with their upper and lower ends welded to the upper connecting steel plate 7 with round holes and the lower connecting steel plate 8, respectively. Front and rear sealing soft steel plates 11 are welded to the left and right sides to form a multi-cavity steel component. The outer side of the multi-cavity steel component is a sealing skin dog-bone hole soft steel plate 9. The upper connecting steel plate 7 with round holes is provided with a reserved round hole. Molten vulcanized rubber is poured into the cavity of the multi-cavity steel component between the welded bending parallel dog-bone hole soft steel plates 10. After the vulcanized rubber cools, it is integrally formed with the multi-cavity steel component to form the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6. A rectangular lead plate 11 is inserted into the cavity of the parallel dog-bone hole soft steel plate and then bonded to seal it, thus preparing a welded soft steel plate system - a lead plate with bonded seal. Molten vulcanized rubber is poured into the cavity between the welded energy dissipation and vibration damping device soft steel plates through the reserved round hole of the upper connecting steel plate with round hole 7. After cooling, vulcanized laminated rubber 13 is formed. The vulcanized laminated rubber 13 and the welded soft steel plate system - lead plate with bonded seal constitute the bending parallel dog-bone hole soft steel plate laminated rubber - lead plate energy dissipation and vibration damping structure 6.
[0019] Furthermore, the rectangular steel plate 7 with round holes on the upper connecting plate has vulcanized rubber injection holes and bolt holes. Its thickness is not less than the thickness of the flange of the steel frame H-beam 3. The bolt holes on it correspond to the bolt holes on the lower flange of the steel frame H-beam 3. The upper connecting plate 7 with round holes has a vulcanized rubber injection hole on the upper part of each cavity formed by the bending parallel dog bone hole soft steel plate 10. The diameter of the vulcanized rubber injection hole is not less than 20mm. The width of the upper connecting plate 7 with round holes is not greater than the flange width of the steel frame H-beam 3.
[0020] Furthermore, the lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes at the bottom of the energy dissipation and vibration reduction structure 6 made of soft steel plate with parallel dog bone holes subjected to bending and rubber-lead plate. Its size is the same as that of the upper connecting steel plate 7 with round holes.
[0021] Furthermore, the soft steel plates 9 for sealing the dog bone holes on the left and right sides are rectangular soft thin steel plates with the same perimeter size as the soft steel plates for the dog bone holes. After the outer side of the rectangular soft thin steel plates is covered with skin, they are welded to the left and right ends of the upper connecting steel plate 7 with round holes and the lower connecting steel plate 8.
[0022] Furthermore, the aforementioned parallel dog-bone hole soft steel plate 10 is a set of parallel cross-sections with near-equal strength bending yield deformation. The dog-bone hole soft steel plate is formed by punching out a series of polygonal holes in a dog-bone pattern from a rectangular soft steel plate. The thickness of the dog-bone hole soft steel plate is determined according to the stress and energy dissipation requirements. Under a major earthquake, the near-equal strength bending yield deformation of the cross-section of the parallel dog-bone hole soft steel plate welded between the upper and lower connecting steel plates dissipates seismic energy.
[0023] Furthermore, the thickness of the rectangular lead plate 11 is not greater than the height of the small sections at both ends of the maximum hole width section of the dog bone hole soft steel plate. Under earthquakes, the damping of the rectangular lead plate increases, and under major earthquakes, the plastic deformation of the rectangular lead plate consumes earthquake energy.
[0024] Furthermore, the front and rear sealing soft steel plates 12 are rectangular soft steel plates, forming several cavities with the left and right side sealing skin dog bone hole soft steel plates 9 and the bending parallel dog bone hole soft steel plates 10. The front and rear sealing soft steel plates 12 are mainly subjected to shear deformation. Under minor or moderate earthquakes, they can play a role in controlling inter-story displacement by exerting high shear stiffness. Under major earthquakes, they dissipate seismic energy through buckling deformation.
[0025] Furthermore, the vulcanized laminated rubber 13 is a vulcanized rubber with high elasticity, high heat resistance, high tensile strength, high wear resistance, and high corrosion resistance, produced by hot vulcanization. In a hot-molten state, it is poured into the cavity between the parallel dog-bone hole soft steel plates 10 through the round holes on the upper connecting steel plate 7. The triangular holes and trapezoidal holes in the middle of the adjacent parallel dog-bone hole soft steel plates 10 are connected after being filled with vulcanized rubber in a hot-molten state. After natural cooling, the vulcanized laminated rubber 13 is formed. The laminated rubber connecting the parallel dog-bone hole soft steel plates deforms together with the soft steel plates and provides restoring force, which can effectively improve the energy dissipation and vibration reduction effect and seismic toughness of the device.
[0026] Furthermore, the high-strength bolts 14 are used for the following connections: forming connection of steel frame-support structure 1, where the end of the steel frame H-beam 3 is provided with a connecting end plate and is assembled and connected to the steel frame H-beam column 2 with bolt holes using high-strength bolts 14 to form a steel frame; the component formed by welding the connecting end steel plate 5 of the H-beam herringbone support 4 to the upper end intersection area of the support is connected to the upper flange of the lower H-beam 3 of the steel frame using high-strength bolts 14; the upper connecting steel plate 7 with round holes of the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 is connected to the lower flange of the steel frame H-beam 3 using high-strength bolts 14; and the lower connecting steel plate 8 of the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 is connected to the connecting end steel plate 5 of the upper end intersection area of the H-beam herringbone support 4 using high-strength bolts 14.
[0027] Material characteristics: The left and right side sealing skin dog bone hole soft steel plates 9, bending parallel dog bone hole soft steel plates 10, and front and rear sealing soft steel plates 11 are made of Q235 steel; the steel frame-support structure 1, the connecting end steel plate 5 welded to the upper area of the H-beam herringbone support, the upper connecting steel plate with round hole 7, and the lower connecting steel plate 8 are all made of Q345B steel; the lead plate 11 is made of lead with an elastic modulus of not less than 17GPa and a yield strength of not less than 5MPa; the vulcanized laminated rubber 13 is made of lead with a shear modulus of... G =0.4~0.6MPa rubber; high-strength bolts 14 with a strength grade not lower than S8.8.
[0028] Compared with the prior art, this utility model relates to a bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and damping device and its method for use in steel frame-braced structures, which has the following advantages:
[0029] 1. This utility model's energy dissipation and vibration reduction device, featuring a parallel dog-bone hole soft steel plate laminated with rubber and lead plate, boasts a simple structure, convenient preparation, easy assembly, and low cost. The soft steel and lead used in this device are common materials on the market. The punching process in the dog-bone hole soft steel plate preparation is a mature steel forming process, and the use of molds for hot-melt injection molding of the lead plate is also a mature and feasible process. The vulcanized laminated rubber injected inside the energy dissipation and vibration reduction device is prepared through a hot vulcanization process, a mature technology. Vulcanized rubber possesses high durability, high corrosion resistance, and high fatigue resistance, and is less affected by temperature, overcoming the drawbacks of viscous dampers, viscoelastic dampers, unstable damping force due to media aging, high temperature sensitivity, and easy damage to seals.
[0030] 2. This utility model's energy dissipation and damping device, featuring a composite rubber-lead plate with parallel dog-bone holes for bending, possesses two lines of defense against seismic events. Under minor or moderate earthquakes, the front and rear sealing soft steel plates of this energy dissipation and damping device effectively control inter-story displacement due to their high shear stiffness, forming the first line of defense. Under major earthquakes, the shear buckling deformation of the front and rear sealing soft steel plates consumes seismic energy, while the plastic deformation of the lead plate consumes seismic energy, forming the second line of defense. The near-equal-strength bending plastic deformation of the parallel dog-bone hole soft steel plate section consumes seismic energy. Compared to traditional soft steel dampers, this device allows for performance-based design of the energy dissipation and damping device according to the structural seismic requirements.
[0031] 3. This utility model's energy dissipation and vibration reduction device for soft steel plates with parallel dog-bone holes under bending, laminated with rubber and lead plates, features synergistic force-bearing characteristics. The soft steel possesses excellent buckling energy dissipation capacity, the lead plate exhibits strong plastic deformation energy dissipation capacity, and the rubber demonstrates excellent elastic deformation capacity and recoverability. By integrating the advantages of these three materials—soft steel, lead plate, and rubber—the rubber, which runs through the soft steel plates with parallel dog-bone holes under bending, synergistically deforms with the soft steel plate and lead plate to dissipate energy and provide restoring force, effectively improving the energy dissipation and vibration reduction effect and seismic toughness of the device. Attached Figure Description
[0032] Figure 1 It is a steel frame-bracing structure and a bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device connected to it by high-strength bolts. (a) Steel frame-bracing structure; (b) Steel frame-bracing structure-energy dissipation and vibration damping device system.
[0033] Figure 2 It is a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping device structure.
[0034] Figure 3 It is a dog-bone hole soft steel plate structure and a skin dog-bone hole soft steel plate structure. (a) Dog-bone hole soft steel plate structure; (b) Skin dog-bone hole soft steel plate structure. Detailed Implementation
[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0036] A bending-resistant parallel dog-bone hole soft steel plate laminated with rubber-lead plate energy dissipation and vibration reduction device, assembled with high-strength bolts to a steel frame-bracing structure, such as... Figure 1 As shown, the system involves a steel frame-support structure (a), a steel frame-support structure-bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and damping device system (b), and the construction of the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and damping device. Figure 2 Dog bone hole soft steel plate structure and skin dog bone hole soft steel plate structure Figure 3 Composition of steel frame-support structure 1: steel frame H-shaped steel column 2, steel frame H-shaped steel beam 3, H-shaped steel herringbone support 4, connecting end steel plate welded at the upper intersection area of the support 5; Composition of bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6: upper connecting steel plate with round hole 7, lower connecting steel plate 8, left and right side sealing skin dog bone hole soft steel plate 9, bending parallel dog bone hole soft steel plate 10, rectangular lead plate 11, adhesive sealing inserted from the front and back of the cavity of the parallel dog bone hole soft steel plate 11, front and back sealing soft steel plate 12, vulcanized laminated rubber 13; High-strength bolt connection system: high-strength bolts 14 used for the assembly of H-shaped steel beam and column frame, H-shaped steel herringbone support assembly, and assembly of steel frame-support structure and bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device.
[0037] The steel frame-support structure 1 is formed by connecting H-shaped steel columns 2 and upper and lower H-shaped steel beams 3 with high-strength bolts 14 to form a steel frame. Then, the upper part of the H-shaped steel herringbone support 4 is welded to a steel plate component, which is then connected to the upper flange of the lower H-shaped steel beam using high-strength bolts 14. The steel frame H-shaped steel columns 2 and H-shaped steel beams 3 are made of welded or rolled H-shaped steel. The bottom of the steel frame H-shaped steel columns 2 is welded with a base plate and stiffening ribs. The base plate is connected to pre-embedded bolts in the foundation to form the column base of the steel frame. Rectangular end plates are welded to the ends of the frame H-shaped steel beams 3. Bolt holes are opened on the rectangular end plates, corresponding to the bolt holes on the steel frame H-shaped steel columns 2, and are connected using high-strength bolts. The thickness of the rectangular end plates welded to the ends of the steel frame H-shaped steel beams 3 is not less than the flange thickness of the steel frame H-shaped steel columns 2. Stiffening ribs are welded to both sides of the web of the H-shaped steel column 2 in the beam-column joint area. The welding position of the stiffening ribs is consistent with the elevation of the upper and lower flanges of the steel frame H-shaped steel beam 3. Stiffening ribs are welded to both sides of the web of the H-shaped steel beam at both ends of the connection area between the upper plate of the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 and the lower flange of the steel frame H-shaped steel beam 3. The thickness of the stiffening ribs is not less than the thickness of the beam web. The H-shaped steel herringbone support 4 is a symmetrically arranged diagonal H-shaped steel. The connecting end steel plate 5 is welded to the upper intersection area of the H-shaped steel herringbone support 4. The connecting end steel plate 5 welded to the upper intersection area of the H-shaped steel herringbone support 4 is connected to the lower connecting steel plate 8 by high-strength bolts 14. The horizontal angle between the H-shaped steel herringbone support 4 and the steel frame H-shaped steel beam 3 is 45°~60°.
[0038] The aforementioned bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 is composed of an upper connecting steel plate with round holes 7, a lower connecting steel plate 8, left and right side sealing skin dog bone hole soft steel plates 9, bending parallel dog bone hole soft steel plates 10, rectangular lead plates 11 that are inserted and bonded to seal the cavity of the parallel dog bone hole soft steel plate from the front and back respectively, front and rear sealing soft steel plates 12, and a multi-cavity steel component formed by welding, and vulcanized laminated rubber 13 injected into the cavity. The left and right side sealing skin dog bone hole soft steel plates 9, the bending parallel dog bone hole soft steel plates 10, and the front and rear sealing soft steel plates 12 are all welded to the upper connecting steel plate with round hole 7 and the lower connecting steel plate 8; the rectangular lead plate 11 is inserted into the cavity of the parallel dog bone hole soft steel plate and then bonded and sealed; through the reserved round hole of the upper connecting steel plate with round hole 7, molten vulcanized rubber is poured into the cavity between the welded energy dissipation and vibration reduction device soft steel plates, and after cooling, vulcanized laminated rubber 13 is formed; the vulcanized laminated rubber and the welded soft steel plate system - the lead plate inserted and bonded and sealed constitute the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6.
[0039] The upper connecting steel plate 7 with round holes is a rectangular steel plate with vulcanized rubber injection holes and bolt holes. Its thickness is not less than the thickness of the flange of the steel frame H-beam 3. The bolt holes on it correspond to the bolt holes on the lower flange of the steel frame H-beam 3. The upper connecting steel plate 7 with round holes has a vulcanized rubber injection hole on the upper part of each cavity formed by the bending parallel dog bone hole soft steel plate 10. The diameter of the vulcanized rubber injection hole is not less than 20mm. The width of the upper connecting steel plate 7 with round holes is not greater than the flange width of the steel frame H-beam 3.
[0040] The lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes at the bottom of the energy dissipation and vibration reduction structure 6, which is a soft steel plate laminated with rubber and lead plates subjected to bending parallel dog bone holes. Its size is the same as that of the upper connecting steel plate 7 with round holes.
[0041] The left and right side sealing skin dog bone hole soft steel plate 9 is made by welding a rectangular soft thin steel plate with the same perimeter size as the dog bone hole soft steel plate from the outside to the dog bone hole soft steel plate, and then welding it to the soft steel plates at the left and right ends of the upper connecting steel plate with round hole 7 and the lower connecting steel plate 8.
[0042] The aforementioned parallel dog-bone hole soft steel plate 10 is a set of parallel cross-sections with near-equal strength bending yield deformation and dog-bone hole design. The dog-bone hole soft steel plate is formed by punching out a series of polygonal holes in a dog-bone pattern from a rectangular soft steel plate. The thickness of the dog-bone hole soft steel plate is determined based on the stress and energy dissipation requirements. Under strong earthquake action, the near-equal strength bending yield deformation of the cross-section of the parallel dog-bone hole soft steel plate welded between the upper and lower connecting steel plates dissipates seismic energy.
[0043] The lead plate 11 inserted and bonded to the front and rear ends of the cavity of the parallel dog bone hole soft steel plate is a rectangular lead plate inserted and bonded to the front and rear of the cavity of the parallel dog bone hole soft steel plate. The thickness of the lead plate is not greater than the height of the small section at both ends of the maximum hole width section of the dog bone hole soft steel plate. Under earthquakes, the lead plate increases the damping of the device, and under strong earthquakes, the plastic deformation of the lead plate consumes earthquake energy.
[0044] The aforementioned front and rear sealing soft steel plates 12 are rectangular soft steel plates, forming several cavities with the left and right side sealing skin dog bone hole soft steel plates 9 and the bending parallel dog bone hole soft steel plates 10. The front and rear sealing soft steel plates 12 are mainly subjected to shear deformation. Under minor or moderate earthquakes, they can effectively control inter-story displacement by exerting high shear stiffness. Under major earthquakes, they dissipate seismic energy through buckling deformation.
[0045] The vulcanized laminated rubber 13 is made by hot-curing vulcanized rubber with high elasticity, high heat resistance, high tensile strength, high wear resistance, and high corrosion resistance. It is poured into the cavity between the parallel dog-bone hole soft steel plates 10 in the hot-molten state through the round holes on the upper connecting steel plate 7. The triangular holes and trapezoidal holes in the middle of the adjacent parallel dog-bone hole soft steel plates 10 are filled with vulcanized rubber in the hot-molten state and then connected. After natural cooling, the vulcanized laminated rubber 13 is formed. The laminated rubber connected between the parallel dog-bone hole soft steel plates deforms together with the soft steel plates and provides restoring force, which can effectively improve the energy dissipation and vibration reduction effect and seismic toughness of the device.
[0046] High-strength bolts 14 are used for the following connections: forming connection of steel frame-support structure 1, where the end of the steel frame H-beam 3 is provided with a connecting end plate and is assembled and connected to the steel frame H-beam column 2 with bolt holes using high-strength bolts 14 to form a steel frame; connecting end steel plate 5 formed by welding H-beam herringbone support 4 to the upper end intersection area of the support to the upper flange of the lower H-beam 3 of the steel frame using high-strength bolts 14; connecting the upper connecting steel plate 7 with round holes of the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 to the lower flange of the steel frame H-beam 3 using high-strength bolts 14; connecting the lower connecting steel plate 8 of the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure 6 to the connecting end steel plate 5 welded to the upper end intersection area of the upper support of the H-beam herringbone support 4 using high-strength bolts 14.
[0047] Material characteristics: The left and right side sealing skin dog bone hole soft steel plates 9, bending parallel dog bone hole soft steel plates 10, and front and rear sealing soft steel plates 11 are made of Q235 steel; the steel frame-support structure 1, the connecting end steel plate 5 welded to the upper area of the H-beam herringbone support, the upper connecting steel plate with round hole 7, and the lower connecting steel plate 8 are all made of Q345B steel; the lead plate 11 is made of lead with an elastic modulus of not less than 17GPa and a yield strength of not less than 5MPa; the vulcanized laminated rubber 13 is made of lead with a shear modulus of... G =0.4~0.6MPa rubber; high-strength bolts 14 with a strength grade not lower than S8.8.
[0048] A method for constructing a bending-resistance parallel dog-bone hole soft steel plate laminated with rubber and lead plate energy dissipation and vibration reduction device for a steel frame-braced structure is as follows:
[0049] Step 1: Fabricate the steel frame-support structure steel components, including H-beams, H-columns, and H-shaped herringbone braces. The factory manufactures and processes the H-beams, H-columns, end plates with bolt holes, stiffening ribs, and cover plates. Bottom plates and cover plates with bolt holes are welded to the bottom and top of the H-columns, respectively. End plates with bolt holes are welded to the ends of the H-beams. Stiffening ribs are welded to the H-columns and beams. Bolt holes are drilled on the flanges of the H-beams and columns. The H-shaped herringbone braces are fabricated, and connecting end plates are welded to their upper intersection areas.
[0050] Step 2: Processing mild steel plates and lead plates. The mild steel plates are cut and sealed before and after shaping; dog-bone holes are punched into the mild steel plate base material using a stamping process to form a dog-bone hole mild steel plate; rectangular thin mild steel plates of the same perimeter are welded onto the dog-bone hole mild steel plate to form a skinned dog-bone hole mild steel plate; hot-melt fluid lead is poured into a mold and then naturally cooled to form a lead plate.
[0051] Step 3: Prepare the steel components for the energy dissipation and vibration reduction device. First, weld the parallel dog-bone hole soft steel plates to be bent at the corresponding positions on the upper connecting steel plate with round holes and the lower connecting plate. Then, weld the dog-bone hole soft steel plates on the left and right sides to seal the skin. Next, insert the rectangular lead plates with adhesive sealing into the cavities of the parallel dog-bone hole soft steel plates from the front and back respectively. After that, weld the front and back sealing soft steel plates and weld them to the left and right side sealing skin dog-bone hole soft steel plates.
[0052] Step 4: Preparation of the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device. Vulcanized rubber is prepared using a hot vulcanization method. Through the round holes on the upper connecting plate, the vulcanized rubber is injected into the cavity between the dog-bone hole soft steel plates. The molten vulcanized rubber flows through the holes in adjacent bending parallel dog-bone hole soft steel plates and vulcanizes and bonds with the lead plate. After natural cooling, the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device is formed.
[0053] Step 5: Assemble the steel frame. First, use high-strength bolts to connect and fix the bottom connecting plate of the H-beam to the foundation; then use high-strength bolts to connect the end plate of the H-beam to the H-beam column.
[0054] Step 6: Assemble the H-beam herringbone supports. Use high-strength bolts to connect the bottom end plates of the two supports of the component, which are welded to the upper flange of the lower H-beam, at the intersection area of the upper H-beam herringbone supports.
[0055] Step 7: Assemble the bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device. Use high-strength bolts to connect the upper connecting steel plate with round holes of the energy dissipation and vibration damping device to the bolt holes of the lower flange of the H-beam. Then, use high-strength bolts to connect the lower connecting steel plate of the energy dissipation and vibration damping device to the bolt holes of the upper connecting end plate welded to the upper area of the H-beam herringbone support. Example
[0056] First, based on the structural layout of the building design, determine the location and specific dimensions of the steel frame H-beams and H-columns; in conjunction with the steel frame design, design the H-beam herringbone supports and the connecting end steel plates welded at the upper intersection area of the supports; according to the design requirements of multiple seismic defense lines, design a bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device.
[0057] The construction process of a bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device for steel frame-braced structures is as follows: S1 factory prepares steel frame H-beams, H-columns, H-shaped supports and matching assembly components; Factory S2 cuts, punches, and welds the soft steel plates with dog-bone holes on the left and right sides of the sealing skin, as well as the front and rear sealing soft steel plates. It punches and processes the soft steel plates with dog-bone holes and uses molds to pour fluid lead to form lead plates. Factory S3 processes other steel components of the energy dissipation and vibration damping device. Factory S4 welds the soft steel plates with dog-bone holes that are subjected to bending at the corresponding positions on the upper connecting steel plate with round holes and the lower connecting steel plate. Then, it welds the soft steel plates with dog-bone holes on the left and right sides of the sealing skin. Then, it inserts rectangular lead plates with adhesive sealing into the cavities of the soft steel plates with dog-bone holes at the front and back. After that, it welds the front and rear sealing soft steel plates and welds them to the soft steel plates with dog-bone holes on the left and right sides of the sealing skin. Factory S5 prepares vulcanized rubber through hot vulcanization and pours the hot-molten vulcanized rubber into the cavity of the steel components of the energy dissipation and vibration damping device. After natural cooling, it forms a laminated rubber-lead plate energy dissipation and vibration damping device with soft steel plates with dog-bone holes that are subjected to bending.
[0058] On-site, high-strength bolts were used to assemble the steel frame, the upper area of the H-beam herringbone support was welded with steel plate components, and a bending parallel dog bone hole soft steel plate laminated with rubber-lead plate energy dissipation and vibration reduction device was assembled.
[0059] The above is a typical embodiment of the present invention, and the implementation of the present invention is not limited thereto.
Claims
1. A bending-resistance parallel dog-bone hole soft steel plate laminated with rubber-lead plate energy dissipation and vibration reduction device, characterized in that, The structure includes a steel frame-support structure (1) and a bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6) set in the steel frame-support structure (1); the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6) is arranged sequentially along the middle of the steel frame-support structure (1); the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6) includes a multi-cavity steel member formed by welding an upper connecting steel plate with round holes (7), a lower connecting steel plate (8), a sealing skin dog bone hole soft steel plate (9), a bending parallel dog bone hole soft steel plate (10), rectangular lead plates (11) that are glued and sealed from the front and back of the cavity of the parallel dog bone hole soft steel plate, and front and rear sealing soft steel plates (12), and vulcanized laminated rubber (13) injected into the multi-cavity steel member. The steel frame-support structure (1) includes steel frame H-shaped steel columns (2), steel frame H-shaped steel beams (3), H-shaped steel herringbone supports (4), and connecting end steel plates (5) welded to the upper intersection area of the supports; the steel frame H-shaped steel columns (2) and the upper and lower steel frame H-shaped steel beams (3) are connected by high-strength bolts (14) to form a steel frame, and the connecting end steel plate components welded to the upper area of the H-shaped steel herringbone supports (4) are connected to the upper flange of the lower H-shaped steel beam by high-strength bolts (14); the bottom of the steel frame H-shaped steel columns (2) is welded with a bottom plate and stiffening ribs, connecting... The base plate is connected to the pre-embedded bolts in the foundation to form the steel frame column base; the ends of the frame H-beam (3) are welded with rectangular end plates, and bolt holes are opened on the rectangular end plates. The bolt holes on the rectangular end plates correspond to the bolt holes on the steel frame H-beam (2) and are connected with high-strength bolts; the thickness of the rectangular end plates welded to the ends of the steel frame H-beam (3) is not less than the flange thickness of the steel frame H-beam (2); stiffening ribs are welded on both sides of the web of the H-beam (2) in the steel frame beam-column joint area, and the welding position of the stiffening ribs is consistent with the elevation of the upper and lower flanges of the steel frame H-beam (3); Stiffening ribs are welded to both sides of the web of the H-beam at both ends of the connection area between the upper connecting steel plate with the round hole (7) and the lower flange of the steel frame H-beam (3). The thickness of the stiffening ribs is not less than the thickness of the web of the beam. The H-beam herringbone support (4) is a symmetrically arranged oblique H-beam. The upper end of the H-beam herringbone support (4) is welded with the connecting end steel plate (5). The connecting end steel plate (5) welded to the upper end of the H-beam herringbone support (4) is connected to the lower connecting steel plate (8) by high-strength bolts (14). In the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6), multiple bending parallel dog bone hole soft steel plates (10) are arranged vertically side by side. The upper and lower ends are welded to the upper connecting steel plate with the round hole (7) and the lower connecting steel plate (8) respectively. The left and right sides are welded with front and rear sealing soft steel plates (12) to form a multi-cavity steel component. The outer side of the multi-cavity steel component is a sealing skin dog bone hole soft steel plate (9).
2. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device according to claim 1, characterized in that, The steel frame H-beams (2) and steel frame H-beams (3) are made of welded or rolled H-beams.
3. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device according to claim 1, characterized in that, The horizontal angle between the H-beam herringbone support (4) and the H-beam (3) of the steel frame is 45°~60°.
4. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device according to claim 1, characterized in that, The upper connecting steel plate (7) with a pre-drilled hole is provided with a pre-drilled hole. Molten vulcanized rubber is injected into the cavity of the multi-cavity steel component between the welded parallel dog bone hole soft steel plates (10). After the vulcanized rubber cools, it is integrally formed with the multi-cavity steel component to form a bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6). A rectangular lead plate (11) is inserted into the cavity of the parallel dog bone hole soft steel plate from the front and back respectively to form a welded soft steel plate system-inserted adhesive-sealed lead plate. Molten vulcanized rubber is injected into the cavity between the welded energy dissipation and vibration reduction device soft steel plates through the pre-drilled hole of the upper connecting steel plate (7). After cooling, vulcanized laminated rubber (13) is formed. The vulcanized laminated rubber (13) and the welded soft steel plate system-inserted adhesive-sealed lead plate constitute the bending parallel dog bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction structure (6).
5. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device according to claim 1, characterized in that, The upper connecting steel plate with round holes (7) is a rectangular steel plate with vulcanized rubber injection holes and bolt holes. Its thickness is not less than the thickness of the flange of the steel frame H-beam (3). The bolt hole positions on it correspond to the bolt hole positions of the lower flange of the steel frame H-beam (3). The upper connecting steel plate with round holes (7) has a vulcanized rubber injection hole on the upper part of each cavity formed by the bending parallel dog bone hole soft steel plate (10). The diameter of the vulcanized rubber injection hole is not less than 20mm. The width of the upper connecting steel plate with round holes (7) is not greater than the flange width of the steel frame H-beam (3).
6. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device according to claim 1, characterized in that, The lower connecting steel plate (8) is a rectangular steel plate with connecting bolt holes at the bottom of the energy dissipation and vibration reduction structure (6) of the soft steel plate with parallel dog bone holes subjected to bending and rubber-lead plate. Its size is the same as that of the upper connecting steel plate with round holes (7).
7. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device according to claim 1, characterized in that, The sealing skin dog bone hole soft steel plate (9) on the left and right sides is a rectangular soft thin steel plate with the same perimeter size as the dog bone hole soft steel plate; after the outer side of the rectangular soft thin steel plate is covered with skin, it is welded to the left and right ends of the upper connecting steel plate with round hole (7) and the lower connecting steel plate (8).
8. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device according to claim 1, characterized in that, The aforementioned parallel dog-bone hole soft steel plate (10) is a set of parallel cross-sections with equal strength and bending yield deformation. The dog-bone hole soft steel plate is formed by punching out a series of polygonal holes in a dog-bone pattern from a rectangular soft steel plate. The thickness of the dog-bone hole soft steel plate is determined according to the stress and energy consumption requirements.
9. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration reduction device according to claim 1, characterized in that, The thickness of the rectangular lead plate (11) is not greater than the height of the small sections at both ends of the maximum hole width section of the soft steel plate with dog bone holes. The front and rear sealing soft steel plates (12) are rectangular soft steel plates, forming several cavities between them and the sealing skin dog bone hole soft steel plate (9) and the bending parallel dog bone hole soft steel plate (10).
10. The bending parallel dog-bone hole soft steel plate laminated rubber-lead plate energy dissipation and vibration damping device according to claim 1, characterized in that, The soft steel plate (9) for sealing the dog bone hole of the skin, the soft steel plate (10) for bending parallel dog bone hole, and the soft steel plate (12) for sealing the front and rear are made of Q235 steel; the steel frame-support structure (1), the connecting end steel plate (5) welded to the upper area of the H-beam herringbone support, the upper connecting steel plate with round hole (7), and the lower connecting steel plate (8) are all made of Q345B steel.