Bent parallel dog bone hole mild steel plate laminated rubber energy dissipation and shock absorption device

Abstract

The utility model discloses a flexural parallel dog bone hole mild steel plate laminated rubber energy dissipation and shock absorption device, which consists of an upper connecting steel plate with a round hole, a lower connecting steel plate, an upper connecting steel plate with a round hole, a lower connecting steel plate, an upper connecting steel plate, a lower connecting steel plate, a lower connecting steel plate and a lower connecting steel plate, wherein the upper connecting steel plate is connected with a lower flange of an H-shaped steel frame beam; the upper connecting steel plate and the lower connecting steel plate are welded between the upper connecting steel plate and the lower connecting steel plate, and the left-side and right-side blocking skin dog-bone hole mild steel plate, the bending parallel dog-bone hole mild steel plate and the front-back blocking mild steel plate are welded between the upper connecting steel plate and the lower connecting steel plate. And the upper and lower connecting steel plates are connected with the high-strength bolt system of the steel frame-supporting structure. Under the action of a strong earthquake, the front and rear plugging mild steel plates are bent and deformed to consume earthquake energy, the sections of the parallel dog-bone hole mild steel plates are bent and plastically deformed to consume the earthquake energy, and the laminated rubber penetrating through the parallel dog-bone hole mild steel plates provides restoring force, so that the energy dissipation and shock absorption effects and the shock resistance toughness of the device can be effectively improved.

Description

Technical Field

[0001] This utility model relates to a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction device for steel frame-support structure, belonging to the field of building vibration reduction technology. Background Technology

[0002] Improving the seismic performance of buildings is key to solving the problem of building damage and collapse under strong earthquakes. Three main technologies are typically employed: first, seismic design technology, which uses efficient seismic-resistant structural systems and high-performance seismic-resistant components to enhance the structure's earthquake 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, metal 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 rubber energy dissipation and vibration reduction device and method 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 the H-beam of the steel frame; a lower connecting steel plate welded to the end plate at the intersection area of ​​the H-beam's herringbone support; left and right sealing dog-bone hole soft steel plates welded between the upper and lower connecting steel plates; bending-resistant parallel dog-bone hole soft steel plates welded between the upper and lower connecting steel plates; front and rear sealing soft steel plates welded between the upper and lower connecting steel plates; vulcanized rubber injected through round holes in the upper connecting steel plate located in the cavity between the bending-resistant parallel dog-bone hole soft steel plates; 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 the deformation increases, 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 cooperate in 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 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 elastoplastic hysteretic deformation of metal components made of low-yield-point steel and other materials to dissipate energy upon yielding. 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 energy dissipation and rubber 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 rubber energy dissipation and vibration damping device for steel frame-braced structures:

[0007] The aforementioned bending parallel dog-bone hole soft steel plate laminated rubber 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 welded connecting end plate at the intersection area of ​​the H-shaped steel herringbone support, left and right sealing skin dog-bone hole soft steel plates welded between the upper and lower connecting steel plates, bending parallel dog-bone hole soft steel plates welded between the upper and lower connecting steel plates, front and rear sealing soft steel plates welded between the upper and lower connecting steel plates, vulcanized rubber injected through round holes in the cavity between the bending parallel dog-bone hole soft steel plates on 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 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.

[0012] 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.

[0013] 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.

[0014] To achieve the above objectives, the present invention adopts the following technical solution:

[0015] A bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device includes a steel frame-support structure 1 and a bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping structure 6 disposed within the steel frame-support structure 1; the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping 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 energy dissipation and vibration damping 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, 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, and vulcanized laminated rubber 12 injected into the cavity of the multi-cavity steel component.

[0016] Furthermore, 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;

[0017] The steel frame-support structure 1 consists of H-shaped steel columns 2 and upper and lower H-shaped steel beams 3 connected by high-strength bolts 13 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 13. 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 steel frame 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 flexible steel plate laminated with rubber 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 web of the beam. 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 13. The horizontal angle between the H-shaped steel herringbone support 4 and the steel frame H-shaped steel beam 3 is 45°~60°.

[0018] Furthermore, in the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure 6, multiple bending parallel dog-bone hole soft steel plates 10 are arranged vertically side by side, and their upper and lower ends are respectively welded to the upper connecting steel plate 7 with round holes and the lower connecting steel plate 8. The left and right sides are respectively welded with front and rear sealing soft steel plates 11 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 reserved round holes, and 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 energy dissipation and vibration reduction structure 6.

[0019] Furthermore, 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 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 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.

[0020] Furthermore, the lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes at the bottom of the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure 6, and 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 bending-resistant parallel dog-bone hole soft steel plate 10 is a set of parallel cross-sections with near-equal strength bending yield deformation, 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 bending-resistant parallel dog-bone hole soft steel plate 10, welded between the upper and lower connecting steel plates, dissipates seismic energy through near-equal strength bending yield deformation of its cross-section.

[0023] Furthermore, the front and rear sealing soft steel plates 11 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 11 are mainly subjected to shear deformation. Under small or moderate earthquakes, they can play a role in controlling inter-story displacement by exerting high shear stiffness. Under large earthquakes, they can dissipate seismic energy through buckling deformation.

[0024] Furthermore, the vulcanized laminated rubber 12 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 molten state, it is poured into the cavity between the bending parallel dog-bone hole soft steel plates 10 through the round holes on the upper connecting steel plate 7. The triangular and trapezoidal holes in the middle of adjacent bending parallel dog-bone hole soft steel plates 10 are filled with the vulcanized rubber in a molten state, and after natural cooling, the vulcanized laminated rubber 12 is vulcanized. The rubber connecting the bending parallel dog-bone hole soft steel plates deforms synergistically with the soft steel plates and provides restoring force, effectively improving the energy dissipation and vibration reduction effect and seismic toughness of the device.

[0025] High-strength bolts 13 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 13 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 13; the upper connecting steel plate 7 with round holes of the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping structure 6 is connected to the lower flange of the steel frame H-beam 3 using high-strength bolts 13; the lower connecting steel plate 8 of the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping 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 13.

[0026] 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 vulcanized laminated rubber 12 has a shear modulus of... G =0.4~0.6MPa rubber; high-strength bolts 13 with a strength grade not lower than S8.8.

[0027] Compared with the prior art, this utility model relates to a bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device for steel frame-braced structures, which has the following advantages:

[0028] 1. This utility model's energy dissipation and vibration damping device, featuring a parallel dog-bone hole soft steel plate laminated with rubber, boasts a simple structure, convenient preparation, easy assembly, and low cost. The soft steel used in this device is a common material in building structures, offering low cost. The punching process in the preparation of the dog-bone hole soft steel plate is a mature and feasible steel forming process. The vulcanized laminated rubber injected inside the 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 minimally affected by temperature, overcoming the drawbacks of viscous dampers, viscoelastic dampers, and lead viscoelastic dampers, such as unstable damping force due to aging of the medium, high temperature sensitivity, and easy damage to seals.

[0029] 2. This utility model's energy dissipation and damping device, featuring a laminated rubber structure with parallel dog-bone holes for bending, possesses two lines of seismic defense. 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. Under major earthquakes, the front and rear sealing soft steel plates dissipate seismic energy through shear buckling deformation, while the cross-section of the parallel dog-bone hole soft steel plate dissipates seismic energy through near-equal-strength bending plastic deformation. 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.

[0030] 3. This utility model's energy dissipation and vibration damping device, featuring a flexible steel plate with parallel dog-bone holes and laminated rubber, possesses the characteristic of synergistic force distribution between flexible steel and laminated rubber. The flexible steel exhibits excellent plastic energy dissipation capacity, while the rubber demonstrates excellent elastic deformation capacity and recoverability. By combining the advantages of both materials, the rubber, which runs through the flexible steel plate with parallel dog-bone holes, deforms synergistically with the flexible steel plate and provides restoring force, effectively improving the energy dissipation and vibration damping effect and seismic toughness of the device. Attached Figure Description

[0031] Figure 1 The diagram shows the steel frame-bracing structure and the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction device connected to it by high-strength bolts. (a) is the steel frame-bracing structure; (b) is the steel frame-bracing structure-energy dissipation and vibration reduction device system.

[0032] Figure 2 This is a structural diagram of a flexible steel plate laminated with rubber for energy dissipation and vibration reduction under bending conditions.

[0033] Figure 3 These are diagrams of a dog-bone hole soft steel plate structure with a mixed skin structure. (a) shows the dog-bone hole soft steel plate structure; (b) shows the skin structure with a dog-bone hole soft steel plate structure. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] A bending-resistant parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device, which is assembled with high-strength bolts to a steel frame-bracing structure, is proposed. Figure 1 It involves a steel frame-bracing structure. Figure 1 (a) Steel frame-bracing structure-flexural parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping device system Figure 1 (b) A bending parallel dog bone hole soft steel plate laminated with rubber energy dissipation and vibration damping device. Figure 2 Dog bone hole soft steel plate structure and skin dog bone hole soft steel plate structure Figure 3The steel frame-support structure consists of: 1. H-shaped steel columns; 2. H-shaped steel beams; 3. H-shaped steel herringbone supports; 4. Connecting end steel plates welded at the upper intersection area of ​​the supports; 5. Bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping structure 6 consists of: 7. Upper connecting steel plate with round holes; 8. Lower connecting steel plate; 9. Left and right sealing skin dog-bone hole soft steel plates; 10. Bending parallel dog-bone hole soft steel plates; 11. Front and rear sealing soft steel plates; 12. Vulcanized laminated rubber; 13. High-strength bolt connection system: H-shaped steel beam-column frame assembly, H-shaped steel herringbone support assembly, and high-strength bolts for assembling the steel frame-support structure and the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device.

[0036] The steel frame-support structure 1 consists of H-shaped steel columns 2 and upper and lower H-shaped steel beams 3 connected by high-strength bolts 13 to form a steel frame. Then, the upper part of the H-shaped steel herringbone support 4 is welded to a connecting steel plate component, which is then connected to the upper flange of the lower H-shaped steel beam using high-strength bolts 13. 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 connecting base plate and stiffening ribs. The connecting base plate is connected to pre-embedded bolts in the foundation to form the steel frame column base. 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 steel frame 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 flexible steel plate laminated with rubber 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 web of the beam. 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 13. The horizontal angle between the H-shaped steel herringbone support 4 and the steel frame H-shaped steel beam 3 is 45°~60°.

[0037] The aforementioned bending-resistant parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure 6 is composed of a multi-cavity steel component welded together with 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-resistant parallel dog-bone hole soft steel plates 10, and front and rear sealing soft steel plates 11, and vulcanized laminated rubber 12 injected into the cavity. The left and right side sealing skin dog-bone hole soft steel plates 9, bending-resistant parallel dog-bone hole soft steel plates 10, and front and rear sealing soft steel plates 11 are all welded to the upper connecting steel plate with round holes 7 and the lower connecting steel plate 8. Molten vulcanized rubber is injected into the cavity between the welded energy dissipation and vibration reduction device soft steel plates through the reserved round holes in the upper connecting steel plate with round holes 7, and after cooling, vulcanized laminated rubber 12 is formed. The vulcanized laminated rubber and the welded soft steel plate system constitute the bending-resistant parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure 6.

[0038] 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 width of the flange of the steel frame H-beam 3.

[0039] The lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes at the bottom of the bent parallel dog bone hole soft steel plate laminated with rubber energy dissipation and vibration reduction structure 6, and its size is the same as that of the upper connecting steel plate 7 with round holes.

[0040] The soft steel plate 9 for sealing the dog bone hole on both sides is a rectangular soft thin steel plate with the same perimeter size as the soft steel plate for the dog bone hole. 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.

[0041] The aforementioned parallel dog-bone hole soft steel plate 10 is a set of parallel soft steel plates 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 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 10, welded between the upper and lower connecting steel plates, dissipates seismic energy.

[0042] The aforementioned front and rear sealing soft steel plates 11 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 11 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.

[0043] The vulcanized laminated rubber 12 is produced by hot vulcanization and has high elasticity, high heat resistance, high tensile strength, high wear resistance, and high corrosion resistance. It is poured into the cavity between the flexible steel plates 10 with parallel dog-bone holes on the upper connecting steel plate 7 in a hot-molten state. The vulcanized rubber in the hot-molten state is poured into the triangular holes and trapezoidal holes in the middle of the adjacent flexible steel plates 10 and then flows through them. After natural cooling, the vulcanized laminated rubber 12 is vulcanized. The rubber and flexible steel plates that flow through the flexible steel plates deform together and provide restoring force, which can effectively improve the energy dissipation and vibration reduction effect and seismic toughness of the device.

[0044] High-strength bolts 13 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 13 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 13; the upper connecting steel plate 7 with round holes of the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping structure 6 is connected to the lower flange of the steel frame H-beam 3 using high-strength bolts 13; the lower connecting steel plate 8 of the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping 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 13.

[0045] 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 vulcanized laminated rubber 12 has a shear modulus of... G =0.4~0.6MPa rubber; high-strength bolts 13 with a strength grade not lower than S8.8.

[0046] This utility model relates to a bending-resistance parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction device and its operation method for steel frame-braced structures, the specific operation method of which is as follows:

[0047] Step 1: Fabricate the steel frame-supporting structural 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 H-beams. Bolt holes are drilled on the flanges of the H-beams and H-columns. The H-shaped herringbone braces are fabricated, and connecting end plates are welded to their upper intersection areas.

[0048] Step 2: Processing the mild steel sheet. Cut and shape the mild steel sheet before and after sealing; use a stamping process to punch dog bone holes in the mild steel sheet base material to form a dog bone hole mild steel sheet; weld rectangular thin mild steel sheets of the same size around the dog bone hole mild steel sheet to form a skin dog bone hole mild steel sheet.

[0049] Step 3: Prepare the steel components for the energy dissipation and vibration reduction device. First, weld the bending parallel dog-bone hole soft steel plates to the corresponding positions of the upper connecting plate with round holes and the lower connecting plate. Then, weld the left and right sealing skin dog-bone hole soft steel plates. After that, weld the front and rear sealing soft steel plates and weld the front and rear sealing soft steel plates to the left and right sealing skin dog-bone hole soft steel plates.

[0050] Step 4: Fabrication of the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device. Vulcanized rubber is prepared using a hot vulcanization method. The vulcanized rubber is injected into the cavity between the dog-bone hole soft steel plates through the round holes on the upper connecting plate. The molten vulcanized rubber flows and connects through the holes in adjacent bending parallel dog-bone hole soft steel plates, and after natural cooling, the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device is formed.

[0051] 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.

[0052] 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.

[0053] Step 7: Assemble the bending parallel dog-bone hole soft steel plate laminated rubber 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

[0054] First, based on the structural layout of the building design, determine the location and specific dimensions of the H-beams and H-columns of the steel frame; in conjunction with the design of the steel frame, design the H-beam herringbone bracing and the connecting end steel plates welded at the upper intersection area of ​​the bracing; according to the design requirements of multiple seismic defense lines, design a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction device.

[0055] The construction process of a bending-resistant parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration damping device for a steel frame-braced structure is as follows: S1, the steel frame H-beams, H-columns, H-shaped supports, and matching assembly components are prepared in the factory; S2, the left and right side sealing skin dog-bone hole soft steel plates and the front and rear sealing soft steel plates are cut, punched, and welded in the factory, and the dog-bone hole soft steel plates are punched and processed; S3, the other steel components of the energy dissipation and vibration damping device are processed in the factory; S4, the steel plate with round holes is connected on top. After welding the bending parallel dog bone hole soft steel plate to the corresponding position of the lower connecting steel plate, weld the left and right side sealing skin dog bone hole soft steel plates, then weld the front and rear sealing soft steel plates, and finally weld the left and right side sealing skin dog bone hole soft steel plates and the front and rear sealing soft steel plates together; S5, prepare vulcanized rubber by hot vulcanization method, and pour the hot molten vulcanized rubber into the cavity of the energy dissipation and vibration damping device steel component, and after natural cooling, form a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration damping device.

[0056] On-site, high-strength bolts were used to assemble the steel frame, the upper part of the H-beam herringbone support was welded with steel plate components, and the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction device was assembled.

[0057] The above is a typical embodiment of the present invention, and the implementation of the present invention is not limited thereto.

Claims

1. A rubber energy dissipation device with bending parallel dog-bone hole mild steel plate laminated rubber, characterized in that, The application relates to a steel frame-supporting structure (1) and a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure (6) arranged in the steel frame-supporting structure (1); the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure (6) is sequentially arranged in the middle of the steel frame-supporting structure (1); the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure (6) comprises a multi-cavity steel component formed by welding an upper connecting circular hole steel plate (7), a lower connecting steel plate (8), a blocking dog bone hole soft steel plate (9), a bending parallel dog bone hole soft steel plate (10) and front and rear blocking soft steel plates (11), and vulcanized laminated rubber (12) filled in the cavity of the multi-cavity steel component. The steel frame-supporting structure (1) comprises steel frame H-shaped steel columns (2), steel frame H-shaped steel beams (3), H-shaped steel chevron braces (4) and connecting end steel plates (5) welded at the upper end intersection areas of the braces. In the steel frame-supporting structure (1), the H-shaped steel columns (2) and the upper and lower steel frame H-shaped steel beams (3) are connected by high-strength bolts (13) to form a steel frame, the upper end area of the H-shaped steel chevron braces (4) is welded with the connecting end steel plate component, the upper flange of the lower steel frame H-shaped steel beam (3) is connected by high-strength bolts (13), the bottom of the steel frame H-shaped steel column (2) is welded with a connecting bottom plate and a stiffener, the connecting bottom plate is connected with the screw rod pre-buried in the foundation to form a steel frame column foot, the end of the frame H-shaped steel beam (3) is welded with a rectangular end plate, the rectangular end plate is provided with bolt holes, the bolt holes of the rectangular end plate correspond to the bolt holes of the steel frame H-shaped steel column (2) and are connected by high-strength bolts, the thickness of the rectangular end plate welded at the end of the steel frame H-shaped steel beam (3) is not less than the thickness of the flange of the steel frame H-shaped steel column (2), the stiffeners are welded on both sides of the web of the H-shaped steel column (2) at the beam-column joint area of the steel frame, the welding positions of the stiffeners are consistent with the elevations of the upper and lower flanges of the steel frame H-shaped steel beam (3), the stiffeners are welded on both sides of the web of the H-shaped steel beam at the connecting area between the upper connecting circular hole steel plate (7) and the lower flange of the steel frame H-shaped steel beam (3), and the thickness of the stiffeners is not less than the thickness of the beam web, the H-shaped steel chevron braces (4) are symmetrically arranged in a slanting H-shaped steel, the connecting end steel plates (5) are welded at the upper end intersection areas of the H-shaped steel chevron braces (4), the connecting end steel plates (5) welded at the upper end intersection areas of the H-shaped steel chevron braces (4) are connected with the lower connecting steel plate (8) by high-strength bolts (13), a plurality of the bending parallel dog bone hole soft steel plates (10) are vertically and parallelly arranged, the upper and lower ends of the bending parallel dog bone hole soft steel plates (10) are welded with the upper connecting circular hole steel plate (7) and the lower connecting steel plate (8) respectively, and the left and right sides of the bending parallel dog bone hole soft steel plates (10) are welded with the front and rear blocking soft steel plates (11) respectively to form a multi-cavity steel component, and the outer side of the multi-cavity steel component is the blocking dog bone hole soft steel plate (9).

2. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The steel frame H-shaped steel column (2) and the steel frame H-shaped steel beam (3) are welded or rolled H-shaped steels.

3. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The horizontal angle between the H-shaped steel chevron braces (4) and the steel frame H-shaped steel beam (3) is 45-60 degrees.

4. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The upper connecting hole steel plate (7) is provided with a reserved hole, and the vulcanized rubber in a molten state is poured into the cavity of the multi-cavity steel member between the welded bending parallel dog bone hole soft steel plates (10), and the vulcanized rubber is integrally formed with the multi-cavity steel member into a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure (6) after cooling.

5. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The upper connecting hole steel plate (7) is a rectangular steel plate with vulcanized rubber pouring holes and bolt holes, and the thickness thereof is not less than the thickness of the flange of the steel frame H-shaped steel beam (3). The bolt hole positions on the upper connecting hole steel plate (7) correspond to the bolt hole positions of the lower flange of the steel frame H-shaped steel beam (3). The upper connecting hole steel plate (7) is provided with a vulcanized rubber pouring hole on the upper part of each cavity divided by the bending parallel dog bone hole soft steel plate (10), and the diameter of the vulcanized rubber pouring hole is not less than 20 mm. The width of the upper connecting hole steel plate (7) is not greater than the width of the flange of the steel frame H-shaped steel beam (3).

6. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The lower connecting steel plate (8) is a rectangular steel plate provided with connecting bolt holes at the bottom of the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure (6), and the size thereof is consistent with that of the upper connecting hole steel plate (7).

7. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The blocking skin dog bone hole soft steel plate (9) is a rectangular soft thin steel plate with the same peripheral size as the bending parallel dog bone hole soft steel plate (10). The rectangular soft thin steel plate is welded to the left and right ends of the upper connecting hole steel plate (7) and the lower connecting steel plate (8) after being covered with a skin on the outside.

8. A bending parallel dog bone hole mild steel laminated rubber energy dissipation device according to claim 1, characterized in that, The bending parallel dog bone hole soft steel plate (10) is a group of parallel dog bone hole soft steel plates with nearly equal strength bending yield deformation. The dog bone hole soft steel plate is formed by punching a series of dog bone-shaped divided polygonal holes in a rectangular soft steel plate.

9. The flexural parallel dog bone hole mild steel laminated rubber energy dissipation device of claim 1, wherein, The front and rear blocking soft steel plates (11) are rectangular soft steel plates, which form a plurality of cavities between the left and right blocking skin dog bone hole soft steel plates (9) and the bending parallel dog bone hole soft steel plates (10).

10. The bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device according to claim 1, wherein The blocking skin dog bone hole soft steel plate (9), the bending parallel dog bone hole soft steel plate (10), and the front and rear blocking soft steel plates (11) are made of Q235 steel. The steel frame-support structure (1), the connecting end steel plate (5) welded at the upper end region of the H-shaped steel inverted V-shaped support, the upper connecting hole steel plate (7), and the lower connecting steel plate (8) are made of Q345B steel.

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