CN119825043A - Flexible steel plate laminated rubber energy dissipation and shock absorption device with bent parallel dog bone holes and manufacturing method - Google Patents
Flexible steel plate laminated rubber energy dissipation and shock absorption device with bent parallel dog bone holes and manufacturing method Download PDFInfo
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Abstract
The invention discloses a device for energy dissipation and shock absorption by laminating rubber with soft steel plates with bent parallel dog bone holes and a method, wherein the device is composed of an upper connecting steel plate with round holes, which is connected with the lower flange of an H-shaped steel frame beam, a lower connecting steel plate, which is connected with a steel plate at the welding connecting end of the H-shaped steel herringbone supporting intersection area, the high-strength bolt system is formed by sealing skin dog-bone hole soft steel plates, bent parallel dog-bone hole soft steel plates and front and back sealing soft steel plates which are welded on the left side and the right side between the upper connecting steel plates and the lower connecting steel plates, pouring vulcanized rubber through round holes of the upper connecting steel plates, which are positioned at the cavity positions of the bent parallel dog-bone hole soft steel plates, and connecting the upper connecting steel plates and the lower connecting steel plates with a steel frame-supporting structure. Under the strong earthquake action, the buckling deformation of the front and back plugging soft steel plates consumes the earthquake energy, the near-equal-strength bending plastic deformation of the sections of the parallel dog-bone hole soft steel plates consumes the earthquake energy, and the laminated rubber between the parallel dog-bone hole soft steel plates is penetrated to provide restoring force, so that the energy dissipation and vibration reduction effect and the earthquake resistance toughness of the device can be effectively improved.
Description
Technical Field
The invention relates to a bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a manufacturing method thereof, and belongs to the technical field of building shock absorption.
Background
The method for improving the earthquake resistance of the building is a key to solving the problems of building damage and collapse under strong earthquake, and generally adopts three technologies, namely, an earthquake resistance design technology, namely, a high-efficiency earthquake resistance structure system and a high-performance earthquake resistance component are adopted to improve the earthquake resistance of the structure, a earthquake isolation design technology, namely, a foundation earthquake isolation device is adopted to weaken the effect of the earthquake on an upper structure, and an energy dissipation and vibration reduction technology, namely, an energy dissipation and vibration reduction device is adopted to consume the energy of an earthquake input structure to lighten the damage of the structure, and if the damage is carried out, the energy dissipation and vibration reduction device can be updated under the strong earthquake. The building vibration isolation and damping technology can be applied in combination.
The engineering world at home and abroad always pay attention to development of a novel energy dissipation and shock absorption device. The current energy dissipation and shock absorption device mainly comprises a viscous damper, a metal damper, a friction damper and the like. However, the existing energy dissipation and shock absorption device which is suitable for performance design and has multiple anti-seismic and anti-defense lines and is easy to recover is quite lacking in manufacturing technology.
The invention provides a bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a manufacturing method thereof, and belongs to the technical field of building shock absorption. The device comprises an upper connecting steel plate with round holes, a lower connecting steel plate, a left and right side plugging skin dog bone hole soft steel plate, a bending parallel dog bone hole soft steel plate, a front and back plugging soft steel plate, a vulcanized rubber and a high-strength bolt system, wherein the upper connecting steel plate is connected with the lower flange of an H-shaped beam of a steel frame, the lower connecting steel plate is connected with a welding connection end plate of the H-shaped steel herringbone supporting junction area, the left and right sides plugging skin dog bone hole soft steel plate is welded between the upper and lower connecting steel plates, the bending parallel dog bone hole soft steel plate is welded between the upper and lower connecting steel plates, the front and back plugging soft steel plates are welded between the upper and lower connecting steel plates, the vulcanized rubber is poured into round holes, and the upper and lower connecting steel plates are connected with the steel frame-supporting structure. Under the action of small earthquake or medium earthquake, the front and back plugging soft steel plates and the parallel dog-bone hole soft steel plate rubber combined rectangular blocks of the energy dissipation and shock absorption device can play the role of high shear rigidity to effectively control interlayer displacement, under the action of large earthquake, the front and back plugging soft steel plates of the energy dissipation and shock absorption device gradually shear yield to damage and consume seismic energy, the parallel dog-bone hole soft steel plate rubber combined rectangular blocks gradually degenerate from shearing resistance to respective bending resistance along with deformation increase, the near-equal-strength bending plastic deformation of the cross section of the parallel dog-bone hole soft steel plates consumes seismic energy, and rubber and the soft steel plates penetrating between the parallel dog-bone hole soft steel plates cooperatively bend and deform to provide restoring force, so that the energy dissipation and shock absorption effect and shock resistance of the device can be effectively improved.
The technical bottleneck problems are that 1 the viscous damper is greatly affected by temperature, the whole damping capacity of the viscous damper cannot be exerted at higher or lower temperature, damping force is unstable due to aging of a medium used in the viscous damper, a sealing element is easy to damage under long-term working due to high pressure and high-speed flowing of the medium in the damper, and leakage is caused, and therefore, the technical bottleneck problems are high in maintenance cost, 2 the problems that the viscoelastic damper and the lead viscoelastic damper are sensitive in environment temperature, large in damping parameters are affected by the environment and the like, 3 the metal damper dissipates energy due to elastoplastic hysteresis deformation generated when a metal element made of low yield point steel and other materials is subjected to yielding, the influence of external environment and temperature change is small, the problems that initial rigidity is small, yield displacement is large and the like exist, namely, sufficient rigidity cannot be provided under the effect of small shock, energy consumption is started under the effect of large shock, the restorability is poor, and performance design is difficult according to structural shock resistance requirements. The technical bottleneck problem is that the energy dissipation and shock absorption device which is assembled between the steel frame and the herringbone steel support and has the technical advantages of soft steel energy consumption and rubber recovery force providing is provided.
Disclosure of Invention
In order to solve the problems, the invention provides a bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a method for manufacturing the same:
The device is composed of an upper connecting steel plate with round holes, a lower connecting steel plate, a left and right side plugging skin dog-bone hole soft steel plate, a front and back plugging soft steel plate, a vulcanized rubber and a high-strength bolt system, wherein the upper connecting steel plate is connected with the lower flange of an H-shaped steel frame beam, the lower connecting steel plate is connected with a welding connecting end plate of an H-shaped steel herringbone supporting intersection area, the left and right sides plugging skin dog-bone hole soft steel plate is welded between the upper and lower connecting steel plates, the front and back plugging soft steel plate is welded between the upper and lower connecting steel plates, the vulcanized rubber is filled in round holes at the cavity positions between the bent parallel dog-bone hole soft steel plates through the upper connecting steel plate, and the upper and lower connecting steel plates are connected with a steel frame-supporting structure.
The dog-bone hole mild steel plate is a mild steel plate obtained by punching a rectangular mild steel plate to form a dog-bone-shaped divided polygonal hole series.
The bent parallel dog-bone hole soft steel plates are a group of parallel dog-bone hole soft steel plates which are mainly bent and deformed and welded between the upper and lower connecting steel plates of the energy dissipation and shock absorption device.
The left side and the right side of the dog bone hole soft steel plate are plugged, and the dog bone hole soft steel plate is a soft steel plate which is welded with the dog bone hole soft steel plate from the outside and then welded on the left end and the right end of the upper and lower connecting steel plates of the energy dissipation and shock absorption device.
The front and back plugging soft steel plates are rectangular soft steel plates, are welded on the front and back surfaces between the upper and lower connecting steel plates of the energy dissipation and shock absorption device, are welded with the left and right side plugging skin dog bone hole soft steel plates, and form a multi-cavity structure with the bent parallel dog bone hole soft steel plates and the left and right side plugging skin dog bone hole soft steel plates.
The laminated vulcanized rubber is prepared by hot vulcanization, is poured into a dog-bone hole soft steel plate of an energy dissipation and shock absorption device in a molten state, is used for plugging the dog-bone hole soft steel plate at the left side and the right side and is used for plugging the inside of a cavity formed by the dog-bone hole soft steel plate and the front and back soft steel plates, and is formed by cooling and molding through flowing and penetrating connection of the molten vulcanized rubber through holes on the dog-bone hole soft steel plate.
The energy dissipation and shock absorption device assembly connection structure is characterized in that an upper connecting steel plate with a round hole is connected with the lower flange of an H-shaped steel beam of a steel frame through a high-strength bolt, a lower connecting steel plate is connected with a welding connection end steel plate of an H-shaped steel herringbone supporting intersection area, and the connection adopts the high-strength bolt assembly connection structure.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device assembled with a steel frame-supporting structure through high-strength bolt connection comprises a steel frame-supporting structure 1 and a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure 6 arranged in the steel frame-supporting structure 1, wherein the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure 6 is sequentially arranged along the middle of the steel frame-supporting structure 1, and the bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure 6 comprises a multi-cavity steel member formed by welding an upper connecting band round hole steel plate 7, a lower connecting steel plate 8, left and right side plugging skin dog bone hole soft steel plates 9, bending parallel dog bone hole soft steel plates 10, front and rear plugging soft steel plates 11 and vulcanized laminated rubber 12 poured into the cavity of the multi-cavity steel member.
Further, the steel frame-supporting structure 1 comprises a steel frame H-shaped steel column 2, a steel frame H-shaped steel beam 3, an H-shaped steel herringbone support 4 and a connecting end steel plate 5 welded at the upper end intersection area;
The steel frame-supporting structure 1 is formed by connecting an H-shaped steel column 2 with an upper H-shaped steel beam 3 and a lower H-shaped steel beam 3 by adopting high-strength bolts 13, and then connecting a steel plate member with a welded connection end at the upper end area of an H-shaped steel herringbone support 4 with the upper flange of the lower H-shaped steel beam by adopting high-strength bolts 13. The H-shaped steel column 2 and the H-shaped steel beam 3 of the steel frame are welded or rolled by H-shaped steel; the bottom of the steel frame H-shaped steel column 2 is welded with a connecting bottom plate and stiffening ribs, the connecting bottom plate is connected with pre-buried screws in a foundation to form a steel frame column foot, the end part of a 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 in the rectangular end plate correspond to the bolt holes in the steel frame H-shaped steel column 2 in position and are connected by high-strength bolts, the thickness of the rectangular end plate welded at the end part of the steel frame H-shaped steel beam 3 is not smaller than the thickness of a flange of the steel frame H-shaped steel column 2, stiffening ribs are welded at two sides of a web plate of the H-shaped steel column 2 in a joint area of the steel frame beam column, the welding position of the stiffening ribs is consistent with the elevation of the upper flange and the lower flange of the steel frame H-shaped steel beam 3, stiffening ribs are welded at two sides of a web plate of a connecting plate of a soft steel laminated rubber energy dissipation shock absorbing structure 6 with bent parallel dog bone holes, the stiffening ribs are welded at two sides of a web plate at two ends of a connecting area of the steel frame H-shaped steel beam 3, the stiffening rib thickness is not smaller than the web plate thickness of the H-shaped steel beam, the H-shaped steel support 4 is symmetrically arranged oblique H-shaped steel, the upper end steel plate of the H-shaped steel support 4 is welded with the web plate 5, the connecting end of the H-shaped steel 4 is welded with the upper end of the H-shaped steel 4, the connecting end steel plate 5 is welded with the upper end of the connecting steel plate 5, and the connecting end of the H-shaped steel 4 is connected by the steel frame H-shaped steel 4 by the high-shaped steel 3, and the angle is connected by 60 DEG by the high-shaped steel 3.
Further, in the laminated rubber energy dissipation and shock absorption structure 6 of the bent parallel dog-bone hole soft steel plates, a plurality of bent parallel dog-bone hole soft steel plates 10 are vertically arranged in parallel, the upper end and the lower end are respectively connected with an upper connecting steel plate 7 with round holes and a lower connecting steel plate 8 in a welding mode, the front and the rear sealing soft steel plates 11 are respectively welded on the left side and the right side to form a multi-cavity steel member, the outer side of the multi-cavity steel member is provided with a sealing skin dog-bone hole soft steel plate 9, reserved round holes are formed in the upper connecting steel plate 7, molten vulcanized rubber is poured into cavities of the multi-cavity steel member between the welded and formed bent parallel dog-bone hole soft steel plates 10, and the vulcanized rubber and the multi-cavity steel member are integrally formed into the laminated rubber energy dissipation and shock absorption structure 6 of the bent parallel dog-bone hole soft steel plates after being cooled.
Further, the upper connecting band round hole steel plate 7 is a rectangular steel plate provided with vulcanized rubber pouring holes and bolt holes, the thickness of the rectangular steel plate is not smaller than the thickness of the flange of the steel frame H-shaped steel beam 3, the position of the bolt hole formed in the upper connecting band round hole steel plate corresponds to the position of the bolt hole of the lower flange of the steel frame H-shaped steel beam 3, the vulcanized rubber pouring holes are formed in the upper portion of the cavity formed by dividing each bent parallel dog-bone hole soft steel plate 10, the diameter of each vulcanized rubber pouring hole is not smaller than 20mm, and the width of the upper connecting band round hole steel plate 7 is not larger than the width of the flange of the steel frame H-shaped steel beam 3.
Further, 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 shock absorption structure 6, and the size of the rectangular steel plate is consistent with that of the upper connecting steel plate 7 with round holes.
Further, the left and right sides shutoff covering dog bone hole mild steel plate 9 adopts the rectangle mild steel plate of peripheral dimension such as dog bone hole mild steel plate, and the welding is in upper connecting band round hole steel plate 7, lower connecting steel plate 8 left and right sides after the outside subsides of rectangle mild steel plate covers.
Further, the bent parallel dog bone hole soft steel plate 10 is a group of dog bone hole soft steel plates with parallel sections and near equal strength and bent and yielding deformation, and the dog bone hole soft steel plates are formed by punching out polygonal hole series of dog bone type segmentation through rectangular soft steel plates. The thickness of the dog bone hole soft steel plate is determined according to the stress and energy consumption requirements. Under the action of large earthquake, the bending yield deformation of the section of the bent parallel dog bone hole soft steel plate 10 welded between the upper and lower connecting steel plates consumes earthquake energy.
Further, the front and rear plugging mild steel plates 11 are rectangular mild steel plates, and a plurality of cavities are formed between the front and rear plugging mild steel plates, the left and right plugging skin dog-bone hole mild steel plates 9 and the bent parallel dog-bone hole mild steel plates 10. The front and rear plugging soft steel plates 11 mainly have shearing deformation, can exert the effect of high shearing rigidity under the action of small earthquake or medium earthquake, effectively control interlayer displacement, and consume earthquake energy through buckling deformation under the action of large earthquake.
Further, the vulcanized laminated rubber 12 is vulcanized rubber with high elasticity, high heat resistance, high tensile strength, high wear resistance and high corrosion resistance produced by a heat vulcanization mode, the round holes which are poured into the steel plate 7 with the round holes at the upper connecting band in a hot melting state flow into the cavity between the bent parallel dog-bone hole soft steel plates 10, the triangular holes and the trapezoidal holes in the middle parts of the adjacent bent parallel dog-bone hole soft steel plates 10 flow into the vulcanized rubber to be penetrated in the hot melting state, and the vulcanized laminated rubber 12 is vulcanized after natural cooling, and the rubber and the soft steel plates which are penetrated between the bent parallel dog-bone hole soft steel plates cooperatively deform and provide restoring force, so that the energy dissipation and shock absorption effects and the shock resistance of the device can be effectively improved.
The high-strength bolts 13 are used for connecting the steel frame and the supporting structure 1 in a forming mode, connecting end plates are arranged at the end portions of the H-shaped steel beams 3 of the steel frame and are assembled and connected with the H-shaped steel columns 2 of the steel frame with bolt holes through the high-strength bolts 13 to form the steel frame, a member formed by welding the H-shaped steel herringbone supports 4 and the connecting end steel plates 5 welded at the junction areas of the upper ends of the supports is connected with the upper flanges of the H-shaped steel beams 3 of the steel frame through the high-strength bolts 13, the round hole steel plates 7 of the upper connecting band of the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption structures 6 are connected with the lower flanges of the H-shaped steel beams 3 through the high-strength bolts 13, and the lower connecting steel plates 8 of the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption structures 6 are connected with the connecting end steel plates 5 welded at the junction areas of the upper ends of the H-shaped steel herringbone supports 4.
The material is characterized in that Q235 steel is adopted for the left and right side plugging skin dog-bone hole mild steel plates 9, the bent parallel dog-bone hole mild steel plates 10 and the front and rear plugging mild steel plates 11, Q345B steel is adopted for the steel frame-supporting structure 1, the connecting end steel plates 5 welded at the upper end areas of the H-shaped steel herringbone supports, Q345B steel is adopted for the upper connecting steel plates 7 and the lower connecting steel plates 8, G=0.4-0.6 MPa is adopted for vulcanized laminated rubber 12, and the strength grade of the high-strength bolts 13 is not lower than S8.8.
The invention relates to a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a method, which specifically comprises the following steps:
The first step is to prepare steel frame-supporting structure steel member comprising steel frame H-shaped steel beam, H-shaped steel column and H-shaped steel herringbone support. The method comprises the steps of factory production of H-shaped steel columns and H-shaped steel beams of a steel frame, end plates, stiffening ribs and cover plates with bolt holes, welding a bottom plate and a steel cover plate with the bolt holes on the bottom and the top of the H-shaped steel columns respectively, welding the end plates with the bolt holes on the end parts of the H-shaped steel beams, welding the stiffening ribs on the H-shaped steel columns and the H-shaped steel beams, opening the bolt holes on flanges of the H-shaped steel beams and the H-shaped steel columns, machining H-shaped steel herringbone inclined supports, and welding connecting end steel plates in intersection areas of the upper ends of the H-shaped steel herringbone inclined supports.
And step two, processing the soft steel plate. Cutting and forming, sealing, punching dog bone hole on the base material by stamping process to form dog bone hole soft steel plate, and bonding to form rectangular soft steel plate with peripheral dimensions.
And thirdly, preparing the steel member of the energy dissipation and shock absorption device. And (3) firstly welding a soft steel plate with a round hole at the corresponding position of the upper connecting plate and the lower connecting plate, then welding soft steel plates with the dog-bone holes on the left side and the right side, and then welding front and back soft steel plates with the dog-bone holes on the left side and the right side.
And fourthly, preparing the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device. The method comprises the steps of preparing vulcanized rubber by adopting a hot vulcanization method, pouring the vulcanized rubber into cavities among the dog-bone hole soft steel plates through round holes for pouring the vulcanized rubber on the upper connecting plate, enabling the vulcanized rubber in a hot melting state to flow and penetrate through holes on adjacent bent parallel dog-bone hole soft steel plates, and naturally cooling to form the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption device.
And fifthly, assembling the steel frame. The H-shaped steel beam end plate is connected with the H-shaped steel column by adopting a high-strength bolt.
And sixthly, assembling the H-shaped steel herringbone support. And connecting the two support bottom connecting end plates of the member of the steel plate at the connecting end welded at the intersection area of the upper ends of the herringbone supports of the H-shaped steel with the upper flange of the lower H-shaped steel beam by adopting high-strength bolts.
And seventhly, assembling the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device. The upper connecting band round hole steel plate of the energy dissipation and shock absorption device is connected with the lower flange bolt hole of the H-shaped steel beam by adopting a high-strength bolt, and then the lower connecting steel plate of the energy dissipation and shock absorption device is connected with the upper connecting end plate bolt hole welded at the upper end area of the H-shaped steel herringbone support by adopting a high-strength bolt.
Compared with the prior art, the invention relates to a bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a manufacturing method, and the device has the following advantages:
1. The bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device has the advantages of simple structure, convenience in preparation, convenience in assembly and low cost. The soft steel used in the energy dissipation and shock absorption device is common steel in the existing building structure, and the cost is low. The punching process in the preparation process of the dog bone hole soft steel plate is a mature process for forming the steel at present, and the feasibility is high. The vulcanized laminated rubber poured into the energy dissipation and shock absorption device is prepared through a hot vulcanization process, and the process technology is mature. The vulcanized rubber has the characteristics of high durability, high corrosion resistance and high fatigue resistance, is little influenced by temperature, and overcomes the defects of unstable damping force, high temperature sensitivity and easy damage of sealing elements caused by aging of viscous damper, viscoelastic damper and lead viscoelastic damper media.
2. The laminated rubber energy-dissipation and shock-absorption device for the bent parallel dog-bone hole soft steel plates has the characteristics of two anti-seismic lines, the front and rear plugging soft steel plates of the energy-dissipation and shock-absorption device can play the role of high shear rigidity to effectively control interlayer displacement under the action of small shock or medium shock, and the front and rear plugging soft steel plates of the energy-dissipation and shock-absorption device can shear, flex and deform to consume seismic energy under the action of large shock. Compared with the traditional mild steel damper, the performance design of the energy dissipation and shock absorption device can be realized according to the structural shock resistance requirement.
3. The soft steel-laminated rubber energy dissipation and shock absorption device for the bent parallel dog-bone hole soft steel plate has the cooperative stress characteristic of soft steel and laminated rubber, the soft steel has good plastic energy consumption capability, and the rubber has good elastic deformation capability and restorability. The advantages of the two materials are combined, the rubber and the soft steel plate which are penetrated between the bent parallel dog-bone hole soft steel plates cooperatively deform and provide restoring force, and the energy dissipation and shock absorption effects and the shock resistance toughness of the energy dissipation and shock absorption device are effectively improved.
Drawings
FIG. 1 is a diagram of a steel frame-support structure and a high-strength bolted bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device. (a) The energy dissipation and shock absorption device comprises a steel frame, a supporting structure and an energy dissipation and shock absorption device system.
FIG. 2 is a construction diagram of a laminated rubber energy dissipation and shock absorption device of a bent parallel dog bone hole soft steel plate.
Fig. 3 is a construction drawing of a dog bone hole soft steel plate construction mixed skin dog bone hole soft steel plate. (a) The structure of the dog bone hole soft steel plate is that of a dog bone hole soft steel plate; (b) is a skinned dog bone pore mild steel plate structure.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples.
As shown in figures 1-3, the high-strength bolt connection system comprises an H-shaped steel column 2 of a steel frame, an H-shaped steel beam 3 of the steel frame, an H-shaped steel herringbone support 4 of the steel frame, a connecting end steel plate 5 for supporting welding of an upper end intersection area, an upper connecting band round hole steel plate 7, a lower connecting steel plate 8, a left and right side plugging skin dog bone hole steel plate 9, a bent parallel dog bone hole steel plate 10, front and rear plugging steel plates 11 and vulcanized laminated rubber 12, and a high-strength bolt connection system comprises an H-shaped steel beam column frame assembly, an H-shaped steel herringbone support assembly, a high-strength bolt 13 for assembling the steel frame-support structure and the bent parallel dog bone hole steel plate laminated rubber energy dissipation and vibration device.
The steel frame-supporting structure 1 is formed by connecting an H-shaped steel column 2 with an upper H-shaped steel beam 3 and a lower H-shaped steel beam 3 by adopting high-strength bolts 13 to form a steel frame, and then connecting a steel plate member with a welded connection end at the upper end area of an H-shaped steel herringbone support 4 with the upper flange of the lower H-shaped steel beam by adopting high-strength bolts 13. The H-shaped steel column 2 and the H-shaped steel beam 3 of the steel frame are welded or rolled by H-shaped steel; the bottom of the steel frame H-shaped steel column 2 is welded with a connecting bottom plate and stiffening ribs, the connecting bottom plate is connected with pre-buried screws in a foundation to form a steel frame column foot, the end part of a 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 in the rectangular end plate correspond to the bolt holes in the steel frame H-shaped steel column 2 in position and are connected by high-strength bolts, the thickness of the rectangular end plate welded at the end part of the steel frame H-shaped steel beam 3 is not smaller than the thickness of a flange of the steel frame H-shaped steel column 2, stiffening ribs are welded at two sides of a web plate of the H-shaped steel column 2 in a joint area of the steel frame beam column, the welding position of the stiffening ribs is consistent with the elevation of the upper flange and the lower flange of the steel frame H-shaped steel beam 3, stiffening ribs are welded at two sides of a web plate of a connecting plate of a soft steel laminated rubber energy dissipation shock absorbing structure 6 with bent parallel dog bone holes, the stiffening ribs are welded at two sides of a web plate at two ends of a connecting area of the steel frame H-shaped steel beam 3, the stiffening rib thickness is not smaller than the web plate thickness of the H-shaped steel beam, the H-shaped steel support 4 is symmetrically arranged oblique H-shaped steel, the upper end steel plate of the H-shaped steel support 4 is welded with the web plate 5, the connecting end of the H-shaped steel 4 is welded with the upper end of the H-shaped steel 4, the connecting end steel plate 5 is welded with the upper end of the connecting steel plate 5, and the connecting end of the H-shaped steel 4 is connected by the steel frame H-shaped steel 4 by the high-shaped steel 3, and the angle is connected by 60 DEG by the high-shaped steel 3.
The multi-cavity steel member formed by welding the bent parallel dog-bone hole soft steel plates 10 and the front and back blocking soft steel plates 11 and the vulcanized laminated rubber 12 poured into the cavity of the multi-cavity steel member is formed by welding the upper connecting steel plate 7 with the round holes, the lower connecting steel plate 8, the dog-bone hole soft steel plates 9 with the left and right blocking skins, the bent parallel dog-bone hole soft steel plates 10 and the front and back blocking soft steel plates 11. The left side and the right side of the skin dog bone hole soft steel plate 9, the bent parallel dog bone hole soft steel plate 10 and the front and the back sealing soft steel plates 11 are welded with the upper connecting steel plate 7 with round holes and the lower connecting steel plate 8, molten vulcanized rubber is poured into a cavity between the welded energy dissipation and shock absorption device soft steel plates through reserved round holes of the upper connecting steel plate 7 with round holes, vulcanized laminated rubber 12 is formed after cooling, and the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure 6 is formed by the vulcanized laminated rubber and the welded soft steel plate system.
The upper connecting band round hole steel plate 7 is a rectangular steel plate provided with vulcanized rubber pouring holes and bolt holes, the thickness of the rectangular steel plate is not smaller than the thickness of the flange of the steel frame H-shaped steel beam 3, the position of the bolt hole formed in the rectangular steel plate corresponds to the position of the bolt hole of the lower flange of the steel frame H-shaped steel beam 3, the upper connecting band round hole steel plate 7 is provided with vulcanized rubber pouring holes on the upper portion of a cavity formed by dividing each bent parallel dog-bone hole soft steel plate 10, the diameter of each vulcanized rubber pouring hole is not smaller than 20mm, and the width of the upper connecting band round hole steel plate 7 is not larger than the width of the flange of the steel frame H-shaped steel beam 3.
The lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes formed in the bottom of the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption structure 6, and the size of the lower connecting steel plate is consistent with that of the upper connecting steel plate 7 with round holes.
The left side and the right side of the dog bone hole soft steel plate 9 are plugged, and the dog bone hole soft steel plate is a rectangular soft steel plate with the peripheral dimension equal to that of the dog bone hole soft steel plate, and the outer sides of the rectangular soft steel plate are welded at the left end and the right end of the upper connecting steel plate 7 with round holes and the lower connecting steel plate 8 after being coated with the skin.
The bent parallel dog bone hole soft steel plate 10 is a group of parallel dog bone hole soft steel plates with near-equal-strength bending yielding deformation cross sections, and is formed by punching out a dog bone-shaped divided polygonal hole series by adopting 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. Under the action of large earthquake, the bending yield deformation of the section of the bent parallel dog bone hole soft steel plate 10 welded between the upper and lower connecting steel plates consumes earthquake energy.
The front and back plugging mild steel plates 11 are rectangular mild steel plates, and a plurality of cavities are formed between the front and back plugging mild steel plates, the left and right side plugging skin dog-bone hole mild steel plates 9 and the bent parallel dog-bone hole mild steel plates 10. The front and rear plugging soft steel plates 11 mainly have shearing deformation, can exert the effect of high shearing rigidity under the action of small earthquake or medium earthquake, and effectively control interlayer displacement, and consume earthquake energy through buckling deformation under the action of large earthquake.
The vulcanized laminated rubber 12 is vulcanized rubber which is produced in a heat vulcanization mode and has high elasticity, high heat resistance, high tensile strength, high wear resistance and high corrosion resistance, round holes which are filled in the steel plate 7 with round holes in the upper connecting band in a hot melting state flow into cavities among the bent parallel dog-bone hole soft steel plates 10, triangular holes and trapezoidal holes in the middle parts of the adjacent bent parallel dog-bone hole soft steel plates 10 flow into the vulcanized rubber in the hot melting state to be penetrated, and the vulcanized laminated rubber 12 is vulcanized after natural cooling, and the rubber and the soft steel plates which are penetrated among the bent parallel dog-bone hole soft steel plates are deformed cooperatively and provide restoring force, so that the energy dissipation and shock absorption effects and the shock resistance and toughness of the device can be effectively improved.
The high-strength bolts 13 are used for connecting the steel frame and the supporting structure 1 in a forming mode, connecting end plates are arranged at the end portions of the H-shaped steel beams 3 of the steel frame and are assembled and connected with the H-shaped steel columns 2 of the steel frame with bolt holes through the high-strength bolts 13 to form the steel frame, a member formed by welding the H-shaped steel herringbone supports 4 and the connecting end steel plates 5 welded at the junction areas of the upper ends of the supports is connected with the upper flanges of the H-shaped steel beams 3 of the steel frame through the high-strength bolts 13, the round hole steel plates 7 of the upper connecting band of the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption structures 6 are connected with the lower flanges of the H-shaped steel beams 3 through the high-strength bolts 13, and the lower connecting steel plates 8 of the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption structures 6 are connected with the connecting end steel plates 5 welded at the junction areas of the upper ends of the H-shaped steel herringbone supports 4.
The material is characterized in that Q235 steel is adopted for the left and right side plugging skin dog-bone hole mild steel plates 9, the bent parallel dog-bone hole mild steel plates 10 and the front and rear plugging mild steel plates 11, Q345B steel is adopted for the steel frame-supporting structure 1, the connecting end steel plates 5 welded at the upper end areas of the H-shaped steel herringbone supports, Q345B steel is adopted for the upper connecting steel plates 7 and the lower connecting steel plates 8, G=0.4-0.6 MPa is adopted for vulcanized laminated rubber 12, and the strength grade of the high-strength bolts 13 is not lower than S8.8.
The invention relates to a bending parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device for a steel frame-supporting structure and a method, which specifically comprises the following steps:
The first step is to prepare steel frame-supporting structure steel member comprising steel frame H-shaped steel beam, H-shaped steel column and H-shaped steel herringbone support. The method comprises the steps of factory production of H-shaped steel columns and H-shaped steel beams of a steel frame, end plates, stiffening ribs and cover plates with bolt holes, welding a bottom plate and a steel cover plate with the bolt holes on the bottom and the top of the H-shaped steel columns respectively, welding the end plates with the bolt holes on the end parts of the H-shaped steel beams, welding the stiffening ribs on the H-shaped steel columns and the H-shaped steel beams, opening the bolt holes on flanges of the H-shaped steel beams and the H-shaped steel columns, machining H-shaped steel herringbone inclined supports, and welding connecting end steel plates in intersection areas of the upper ends of the H-shaped steel herringbone inclined supports.
And step two, processing the soft steel plate. Cutting and forming, sealing, punching dog bone hole on the base material by stamping process to form dog bone hole soft steel plate, and bonding to form rectangular soft steel plate with peripheral dimensions.
And thirdly, preparing the steel member of the energy dissipation and shock absorption device. And (3) firstly welding a soft steel plate with a round hole at the corresponding position of the upper connecting plate and the lower connecting plate, then welding soft steel plates with the dog-bone holes on the left side and the right side, and then welding front and back soft steel plates with the dog-bone holes on the left side and the right side.
And fourthly, preparing the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device. The method comprises the steps of preparing vulcanized rubber by adopting a hot vulcanization method, pouring the vulcanized rubber into cavities among the dog-bone hole soft steel plates through round holes for pouring the vulcanized rubber on the upper connecting plate, enabling the vulcanized rubber in a hot melting state to flow and penetrate through holes on adjacent bent parallel dog-bone hole soft steel plates, and naturally cooling to form the bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption device.
And fifthly, assembling the steel frame. The H-shaped steel beam end plate is connected with the H-shaped steel column by adopting a high-strength bolt.
And sixthly, assembling the H-shaped steel herringbone support. And connecting the two support bottom connecting end plates of the member of the steel plate at the connecting end welded at the intersection area of the upper ends of the herringbone supports of the H-shaped steel with the upper flange of the lower H-shaped steel beam by adopting high-strength bolts.
And seventhly, assembling the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device. The upper connecting band round hole steel plate of the energy dissipation and shock absorption device is connected with the lower flange bolt hole of the H-shaped steel beam by adopting a high-strength bolt, and then the lower connecting steel plate of the energy dissipation and shock absorption device is connected with the upper connecting end plate bolt hole welded at the upper end area of the H-shaped steel herringbone support by adopting a high-strength bolt.
Examples
The method comprises the steps of firstly determining the arrangement positions and specific sizes of H-shaped steel beams and H-shaped steel columns of a steel frame according to structural arrangement of building design, combining the design of the steel frame, matching and designing H-shaped steel herringbone supports and connecting end steel plates welded at the junction areas of the upper ends of the supports, and designing a bent parallel dog-bone hole soft steel plate laminated rubber energy dissipation and shock absorption device according to the design requirements of a plurality of anti-seismic and anti-line.
A construction process for a laminated rubber energy dissipation and shock absorption device of a bent parallel dog bone hole soft steel plate for a steel frame-supporting structure comprises the following steps of S1, preparing H-shaped steel beams, H-shaped steel columns and H-shaped steel herringbone supporting and matched assembly parts of the steel frame in a factory, S2, cutting, punching and welding the dog bone hole soft steel plates on the left side and the right side, blocking the soft steel plates front and back, punching and processing the dog bone hole soft steel plates in the factory, S3, processing other steel members of the energy dissipation and shock absorption device in the factory, S4, welding the dog bone hole soft steel plates on the left side and the right side after the bent parallel dog bone hole soft steel plates are welded on corresponding positions of an upper connecting belt round hole steel plate and a lower connecting steel plate, welding the dog bone hole soft steel plates on the left side and the right side, welding the front and back blocking the soft steel plates, finally welding the dog bone hole soft steel plates on the left side and the back blocking the soft steel plates together, S5, preparing vulcanized rubber by a hot-vulcanization method, pouring vulcanized rubber in a cavity of the steel member of the energy dissipation and cooling device, and forming the laminated rubber energy dissipation and shock absorption device of the bent parallel dog bone hole soft steel plate.
The steel frame is assembled by high-strength bolts on site, the steel plate component at the connecting end is welded at the upper end area of the H-shaped steel herringbone support, and the bent parallel dog bone hole soft steel plate laminated rubber energy dissipation and shock absorption device is assembled.
The above is an exemplary embodiment of the present invention, and the implementation of the present invention is not limited thereto.
Claims (10)
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| CN119933286A (en) * | 2024-12-30 | 2025-05-06 | 昆明理工大学 | A shear parallel circular hole mild steel plate laminated rubber energy dissipation and shock absorption device and its manufacturing method |
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