High-ductility mortar energy dissipation and shock absorption device for flexural parallel dog bone hole mild steel plate

Abstract

The utility model discloses a bending parallel dog bone hole mild steel plate high-ductility mortar energy dissipation and shock absorption device which is composed of an upper connecting steel plate with a round hole, a lower connecting steel plate, a lower connecting steel plate, an upper connecting steel plate with a round hole, a lower connecting steel plate, a lower 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 strong shock, the front and rear plugging mild steel plates are subjected to buckling deformation energy dissipation and shock absorption, the sections of the parallel dog bone hole mild steel plates are subjected to nearly-equal-strength bending plastic deformation consumption shock absorption, and the high-ductility mortar combined with the mild steel plates is subjected to whole-process consumption shock absorption of cracking, yielding and damage, so that the energy dissipation and shock absorption effect of the device can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of bending parallel dog bone hole mild steel plate high ductility mortar energy-dissipation and shock-absorbing device for steel frame-support structure belongs to building damping technical field. BACKGROUND

[0002] It is the key to solve the problem of building damage and collapse under strong earthquake to improve the seismic performance of building, and three techniques are usually used to improve the ability of building to resist earthquake damage and collapse economically, efficiently and reasonably: one is seismic design technique, that is, using efficient seismic structure system and high-performance seismic component to improve the seismic capacity of structure; two is isolation design technique, that is, using base isolation device to weaken the effect of earthquake on upper structure; three is energy-dissipation and shock-absorbing technique, that is, using energy-dissipation and shock-absorbing device to consume the energy inputted into structure by earthquake, to reduce the damage of structure, and weak energy-dissipation and shock-absorbing device can be renewed if it is damaged under strong earthquake. Building isolation and damping technique can be applied jointly.

[0003] The engineering field at home and abroad has always attached great importance to the research and development of new energy-dissipation and shock-absorbing device. At present, energy-dissipation and shock-absorbing device mainly includes viscous damper, metal damper and friction damper. However, the energy-dissipation and shock-absorbing device suitable for performance-based design and having the function of multi-line seismic defense and the manufacturing technology thereof are very deficient at present.

[0004] The utility model provides a kind of bending parallel dog bone hole mild steel plate high ductility mortar energy-dissipation and shock-absorbing device and method for steel frame-support structure belongs to building damping technical field. The device is connected with the upper connecting band hole steel plate of lower flange connection of steel frame H type beam, the lower connecting steel plate of welding connection end plate connection with the intersection area of H type steel herringbone support, the left and right two sides of dog bone hole mild steel plate welded between the upper and lower connecting steel plate, the bending parallel dog bone hole mild steel plate welded between the upper and lower connecting steel plate, the front and rear plugging mild steel plate welded between the upper and lower connecting steel plate, the high ductility mortar filled in the cavity position of bending parallel dog bone hole mild steel plate through the round hole of upper connecting steel plate, and the high-strength bolt system of the connection of upper and lower connecting steel plate and steel frame-support structure is constituted. Under the action of small earthquake or medium earthquake, the front and rear plugging mild steel plate and parallel dog bone hole mild steel plate high ductility mortar combined rectangular block of this energy-dissipation and shock-absorbing device can play the role of large shear rigidity to effectively control interlayer displacement, and serve as the first seismic defense line; under the action of strong earthquake, the front and rear plugging mild steel plate and high ductility mortar of this energy-dissipation and shock-absorbing device gradually shear buckling damage to consume seismic energy, and serve as the first seismic defense line; with the increase of deformation, high ductility mortar and mild steel plate work together to crack, yield and damage, to consume more seismic energy, and parallel dog bone hole mild steel plate section nearly equal strength bending plastic deformation consumes seismic energy, and serve as the second seismic defense line; the energy-dissipation and shock-absorbing effect of the device can be effectively improved.

[0005] Technical bottleneck problems: 1. The viscous damper is greatly affected by temperature, and cannot fully play its shock absorption capacity at high or low temperatures. The medium used in the viscous damper ages, causing unstable damping force. Due to the high pressure and high-speed flow of the medium in the damper, the sealing element is easily damaged after long-term work, leading to leakage problems, and thus the maintenance cost is high; 2. The viscoelastic damper and the lead viscoelastic damper also have problems such as environmental temperature sensitivity and large environmental influence on damping parameters; 3. The metal damper uses the elastic-plastic hysteresis deformation of the metal element made of low yield point steel and the like to dissipate energy, and is less affected by external environment and temperature changes, but has problems such as small initial stiffness and large yield displacement, that is, it cannot provide sufficient stiffness under small earthquake action, and starts to dissipate energy under large earthquake action but has poor recoverability, and it is difficult to perform performance-based design according to the seismic demand of the structure. Technical bottleneck problem: a low-cost energy dissipation and seismic mitigation device assembled between a steel frame and a herringbone steel support and a manufacturing method. SUMMARY

[0006] To solve the above problems, the utility model provides a kind of for steel frame-support structure's bending parallel dog bone hole soft steel plate high ductility mortar energy dissipation and seismic mitigation device:

[0007] The bending parallel dog bone hole soft steel plate high ductility mortar energy dissipation and seismic mitigation device is connected with the upper connecting band circular hole steel plate of H type steel frame beam lower flange, and the lower connecting steel plate of the end plate connection welding connection of H type steel herringbone support intersection area, the left and right two sides of plugging skin dog bone hole soft steel plate welding between upper and lower connecting steel plate, the bending parallel dog bone hole soft steel plate welding between upper and lower connecting steel plate, the front and rear plugging soft steel plate welding between upper and lower connecting steel plate, the high ductility mortar of the cavity position circular hole of upper connecting steel plate between bending parallel dog bone hole soft steel plate is filled, and high-strength bolt system of upper and lower connecting steel plate and steel frame-support structure connection is formed.

[0008] The dog bone hole soft steel plate is a rectangular soft steel plate after punching a series of polygonal holes of dog bone type division.

[0009] The bending parallel dog bone hole soft steel plate is a group of parallel dog bone hole soft steel plates welded between the upper and lower connecting steel plates of the energy dissipation and seismic mitigation device, which are mainly deformed by bending.

[0010] The left and right two sides of plugging skin dog bone hole soft steel plate are rectangular soft thin steel plates with the same peripheral size as the dog bone hole soft steel plate, which are welded from the outside to the dog bone hole soft steel plate, and then welded to the soft steel plate at the left and right ends of the upper and lower connecting steel plates of the energy dissipation and seismic mitigation device.

[0011] The front and rear blocking soft steel plate is a rectangular soft steel plate, which is welded between the front and rear two sides of the upper and lower connecting steel plates of the energy dissipation and shock absorption device, and is welded with the left and right side blocking skin dog bone hole soft steel plates, and forms a multi-cavity structure with the bending parallel dog bone hole soft steel plate and the left and right side blocking skin dog bone hole soft steel plate.

[0012] The high ductility mortar is high-ductility mortar filled in the cavity between the dog bone hole soft steel plates of the energy dissipation and shock absorption device, which is in flow communication with adjacent dog bone hole soft steel plates, left and right side blocking soft steel plates and front and rear blocking soft steel plates, and forms a soft steel plate-high-ductility mortar combined structure after curing.

[0013] The energy dissipation and shock absorption device assembly connection structure is that the upper connecting circular hole steel plate is connected with the lower flange of the H-shaped steel beam of the steel frame through high-strength bolt connection, and the lower connecting steel plate is connected with the intersection area of the H-shaped steel inverted V-shaped support through the welded connection end steel plate.

[0014] To achieve the above object, the utility model adopts the following technical scheme:

[0015] A bending parallel dog bone hole soft steel plate high-ductility mortar energy dissipation and shock absorption device connected with the steel frame-support structure high-strength bolt connection assembly, comprising a steel frame-support structure 1, and a bending parallel dog bone hole soft steel plate high-ductility energy dissipation and shock absorption structure 6 arranged in the steel frame-support structure 1, the bending parallel dog bone hole soft steel plate high-ductility energy dissipation and shock absorption structure 6 is sequentially arranged along the middle of the steel frame-support structure 1, the bending parallel dog bone hole soft steel plate high-ductility energy dissipation and shock absorption structure 6 comprises a multi-cavity steel member formed by welding an upper connecting circular hole steel plate 7, a lower connecting steel plate 8, a blocking skin dog bone hole soft steel plate 9, a bending parallel dog bone hole soft steel plate 10 and a blocking soft steel plate 11, and high-ductility mortar 12 filled in the cavity of the multi-cavity steel member.

[0016] Further, in the steel frame-support structure 1, the steel frame H-shaped steel column 2 and the upper and lower steel frame H-shaped steel beam 3 are connected by high-strength bolts 13 to form a steel frame; the bottom area of the H-shaped steel chevron brace 4 is welded to a connecting end steel plate member and connected to the upper flange of the lower steel frame H-shaped steel beam 3 by high-strength bolts 13. The steel frame H-shaped steel column 2 and the steel frame H-shaped steel beam 3 are welded or rolled H-shaped steel; the bottom of the steel frame H-shaped steel column 2 is welded to a connecting bottom plate and a stiffening rib, and the connecting bottom plate is connected to a screw rod embedded in the foundation to form a steel frame column foot; the end of the steel frame H-shaped steel beam 3 is welded to a rectangular end plate, which has bolt holes corresponding to the bolt holes on the steel frame H-shaped steel column 2 and is connected by high-strength bolts 13; the thickness of the rectangular end plate welded to 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 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, and 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 H-shaped steel beam web at both ends of the connection area between the upper circular hole steel plate 7 and the lower flange of the steel frame H-shaped steel beam 3, and the thickness of the stiffening ribs is not less than the thickness of the H-shaped steel beam web; the H-shaped steel chevron brace 4 is a symmetrical diagonal H-shaped steel, and the upper end intersection area of the H-shaped steel chevron brace 4 is welded to a connecting end steel plate 5; the connecting end steel plate 5 welded to the upper end intersection area of the H-shaped steel chevron brace 4 is connected to the lower connecting steel plate 8 by high-strength bolts 13; the horizontal angle between the H-shaped steel chevron brace 4 and the steel frame H-shaped steel beam 3 is 45°-60°.

[0017] Further, in the steel frame-support structure 1, the steel frame H-shaped steel column 2 and the upper and lower steel frame H-shaped steel beam 3 are connected by high-strength bolts 13 to form a steel frame; the bottom area of the H-shaped steel chevron brace 4 is welded to a connecting end steel plate member and connected to the upper flange of the lower steel frame H-shaped steel beam 3 by high-strength bolts 13. The steel frame H-shaped steel column 2 and the steel frame H-shaped steel beam 3 are welded or rolled H-shaped steel; the bottom of the steel frame H-shaped steel column 2 is welded to a connecting bottom plate and a stiffening rib, and the connecting bottom plate is connected to a screw rod embedded in the foundation to form a steel frame column foot; the end of the steel frame H-shaped steel beam 3 is welded to a rectangular end plate, which has bolt holes corresponding to the bolt holes on the steel frame H-shaped steel column 2 and is connected by high-strength bolts 13; the thickness of the rectangular end plate welded to 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 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, and 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 H-shaped steel beam web at both ends of the connection area between the upper circular hole steel plate 7 and the lower flange of the steel frame H-shaped steel beam 3, and the thickness of the stiffening ribs is not less than the thickness of the H-shaped steel beam web; the H-shaped steel chevron brace 4 is a symmetrical diagonal H-shaped steel, and the upper end intersection area of the H-shaped steel chevron brace 4 is welded to a connecting end steel plate 5; the connecting end steel plate 5 welded to the upper end intersection area of the H-shaped steel chevron brace 4 is connected to the lower connecting steel plate 8 by high-strength bolts 13; the horizontal angle between the H-shaped steel chevron brace 4 and the steel frame H-shaped steel beam 3 is 45°-60°.

[0018] Further, the upper circular hole steel plate 7 is a rectangular steel plate with a reserved hole and a bolt hole, and its thickness is not less than the thickness of the flange of the steel frame H-shaped steel beam 3, and the position of the bolt hole on it corresponds to the position of the bolt hole on the lower flange of the steel frame H-shaped steel beam 3; the upper circular hole steel plate 7 has a reserved hole on the upper part of each cavity divided by the bending parallel dog bone hole soft steel plate 10, which is a ductile mortar pouring hole with a diameter not less than 20mm; the width of the upper circular hole steel plate 7 is not greater than the width of the flange of the steel frame H-shaped steel beam 3.

[0019] Further, the lower connecting steel plate 8 is a rectangular steel plate with connecting bolt holes at the bottom of the high ductility energy dissipation and vibration reduction structure 6 of the bending parallel dog bone hole soft steel plate, which is consistent in size with the upper connecting circular hole steel plate 7.

[0020] Further, the blocking skin dog bone hole soft steel plate 9 is a rectangular soft thin steel plate with the same perimeter size as the bending parallel dog bone hole soft steel plate 10, which is welded to the left and right ends of the upper connecting circular hole steel plate 7 and the lower connecting steel plate 8 after being covered with a skin.

[0021] Further, 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, which is formed by punching a series of dog bone-shaped partitioned polygonal holes in a rectangular soft steel plate. The thickness of the dog bone hole soft steel plate is determined according to the force and energy dissipation requirements. Under the action of a large earthquake, the bending parallel dog bone hole soft steel plate 10, which is welded between the upper and lower connecting steel plates, has a nearly equal strength bending yield deformation to dissipate seismic energy.

[0022] Further, the front and rear blocking soft steel plate 11 is a rectangular soft steel plate, which forms several cavities between the blocking skin dog bone hole soft steel plate 9 and the bending parallel dog bone hole soft steel plate 10. The front and rear blocking soft steel plate 11 is mainly subjected to shear deformation, which effectively controls the interlayer displacement under the action of small or medium earthquakes, and dissipates seismic energy through buckling deformation under the action of a large earthquake.

[0023] Further, the high ductility mortar 12 is a flow-communicating high ductility mortar 12 between adjacent dog bone hole soft steel plates 10, skin dog bone hole soft steel plates 9, and front and rear blocking soft steel plates 11, which is poured into the cavities of the energy dissipation and vibration reduction device. After curing, the high ductility mortar 12 forms a soft steel plate-high ductility mortar composite structure.

[0024] Further, the high-strength bolt 13 is used for the following connections: the forming connection of the steel frame-supporting structure 1, the connection of the steel frame H-shaped steel beam 3 end plate with the steel frame H-shaped steel column 2 with bolt holes using high-strength bolts 13 to form a steel frame; the connection of the H-shaped steel inverted V-shaped support 4 with the upper end of the support intersection area welded to the connecting end steel plate 5 to form a component, which is connected to the upper flange of the lower H-shaped steel beam 3 of the steel frame using high-strength bolts 13; the connection of the upper connecting circular hole steel plate 7 of the bending parallel dog bone hole soft steel plate high ductility mortar energy dissipation and vibration reduction device 6 to the lower flange of the steel frame H-shaped steel beam 3 through high-strength bolts 13; and the connection of the lower connecting steel plate 8 of the bending parallel dog bone hole soft steel plate high ductility mortar energy dissipation and vibration reduction device 6 to the connecting end steel plate 5 welded at the upper end of the support intersection area of the H-shaped steel inverted V-shaped support 4 through high-strength bolts 13.

[0025] Material characteristics: the dog bone hole soft steel plate 9, the bending parallel dog bone hole soft steel plate 10, the front and rear blocking soft steel plate 11 adopt Q235 steel material; the steel frame-supporting structure 1, the connecting end steel plate 5 welded at the upper end region of the H-shaped steel herringbone support, the upper connecting band circular hole steel plate 7, the lower connecting steel plate 8 all adopt Q345B steel material; the high ductility mortar 12 adopts the fiber high performance mortar with strength grade 40MPa-80MPa; the high-strength bolt 13 is not less than S8.8 grade in strength grade.

[0026] Compared with the prior art, the utility model relates to a kind of bending parallel dog bone hole soft steel plate high ductility mortar energy-dissipation device and method for steel frame-supporting structure, with following advantages:

[0027] 1, the utility model bending parallel dog bone hole soft steel plate high ductility mortar energy-dissipation device structure is simple, and convenient preparation, assembly is convenient, and cost is low.The soft steel and high ductility mortar used in the utility model energy-dissipation device are the common materials in current building material market, and high ductility mortar is much cheaper than lead material and vulcanized rubber material;The punching process in the preparation process of dog bone hole soft steel plate is the mature technology of current steel forming, and it is feasible.The process of filling higher ductility mortar in energy-dissipation device is simple.High ductility mortar core is stable and durable, overcome the drawbacks that viscous damper, viscoelastic damper, lead viscoelastic damper medium aging leads to unstable damping force, high temperature sensitivity and sealing element is easily damaged.

[0028] 2, the utility model bending parallel dog bone hole soft steel plate high ductility mortar energy-dissipation device has two seismic defense lines characteristics, under the action of small earthquake or medium earthquake, the front and rear blocking soft steel plate and soft steel plate-high ductility mortar combined rectangular block of this energy-dissipation device can play the role of large shear rigidity and effectively control interlayer displacement, as first seismic defense line;Under the action of large earthquake, the front and rear blocking soft steel plate of this energy-dissipation device shearing buckling deformation consumes seismic energy, high ductility mortar cracking, yielding, damage whole process consumes seismic energy, bending parallel dog bone hole soft steel plate section near equal strength bending plastic deformation consumes seismic energy, as second seismic defense line.Compared with traditional soft steel damper, the performance-based design of energy-dissipation device can be realized according to structural seismic demand.

[0029] 3, the utility model bending parallel dog bone hole soft steel plate high ductility mortar energy-dissipation device has soft steel-high ductility mortar collaborative force characteristics, soft steel has good plastic ductility deformation energy dissipation capacity, high ductility mortar also has plastic ductility deformation capacity, which combines the advantages of high ductility deformation of two materials, and high ductility mortar and soft steel plate between bending parallel dog bone hole soft steel plate collaborative deformation consume seismic energy, effectively improve the energy-dissipation effect of energy-dissipation device. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Steel frame-bracing structure and high-ductility energy dissipation and damping device of soft steel plate with parallel dog-bone holes connected to it by high-strength bolts. (a) is the steel frame-bracing structure; (b) is the steel frame-bracing structure-energy dissipation and damping device system.

[0031] Figure 2 Construction of a high-ductility energy dissipation and vibration reduction device using soft steel plates with parallel dog-bone holes subjected to bending.

[0032] Figure 3 Dog-bone hole soft steel plate construction and mixed skin dog-bone hole soft steel plate construction. (a) is a dog-bone hole soft steel plate construction; (b) is a skin dog-bone hole soft steel plate construction. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A high-ductility mortar energy dissipation and vibration reduction device using soft steel plates with parallel dog-bone holes, which is assembled with high-strength bolts to a steel frame-support structure, and subjected to bending. Figure 1 The invention relates to a steel frame-support structure; (a) a steel frame-support structure-bending parallel dog-bone hole soft steel plate high-ductility energy dissipation and damping device system; (b) a bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and damping device structure; the steel frame-support structure 1 consists of: steel frame H-shaped steel column 2, steel frame H-shaped steel beam 3, H-shaped steel herringbone support 4, and connecting end steel plate welded at the upper intersection area of ​​the support 5; the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and damping device structure 6 consists of: upper connecting steel plate with round hole 7, lower connecting steel plate 8, left and right side sealing skin dog-bone hole soft steel plate 9, bending parallel dog-bone hole soft steel plate 10, front and rear sealing soft steel plate 11, and high-ductility mortar 12; the high-strength bolt connection system consists of: H-shaped steel beam and column frame assembly, H-shaped steel herringbone support assembly, and high-strength bolts 13 for assembling the steel frame-support structure and the bending parallel dog-bone hole soft steel plate laminated rubber energy dissipation and damping device.

[0035] The steel frame-support structure 1 is formed by connecting the steel frame H-shaped steel columns 2 and the upper and lower steel frame H-shaped steel beams 3 with high-strength bolts 13 to form a steel frame. Then, the upper part of the H-shaped steel herringbone support 4 is welded 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 column 2 is welded with a connecting plate and stiffening ribs. The connecting plate is connected to the pre-embedded bolts in the foundation to form the steel frame column base. Rectangular end plates are welded to the ends of the steel 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 column 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 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 soft steel plate laminated with rubber energy dissipation and vibration reduction structure 6 and the lower flange of the 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 H-shaped steel beam 3 is 45°~60°.

[0036] 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 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-resistant parallel dog-bone hole soft steel plates 10, and front and rear sealing soft steel plates 11, and high-ductility mortar 12 poured 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; through the reserved round holes of the upper connecting steel plate with round holes 7, high-ductility mortar is poured into the cavity between the welded energy dissipation and vibration reduction device soft steel plates, and after curing, the soft steel plate-high-ductility mortar composite structure 12 is formed; the high-ductility mortar and the welded soft steel plates constitute the bending-resistant parallel dog-bone hole soft steel plate laminated rubber energy dissipation and vibration reduction structure 6.

[0037] The upper connecting steel plate 7 with round holes is a rectangular steel plate with high-ductility mortar 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 high-ductility mortar 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 high-ductility mortar 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.

[0038] 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.

[0039] The left and right side sealing skin dog bone hole soft steel plate 9 is made by welding a rectangular soft thin steel plate with the same perimeter size as the dog bone hole soft steel plate from the outside to the dog bone hole soft steel plate, and then welding it to the soft steel plate with round hole on the upper and lower connecting steel plate 7 and the left and right ends of the lower connecting steel plate 8 of the energy dissipation and vibration reduction device.

[0040] 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.

[0041] 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.

[0042] The high-ductility mortar 12 is a high-ductility mortar that flows between adjacent dog-bone hole soft steel plates, left and right side sealing soft steel plates, and front and rear sealing soft steel plates, and is poured into the cavity between the dog-bone hole soft steel plates of the energy dissipation and vibration reduction device. After curing, the high-ductility mortar forms a soft steel plate-high-ductility mortar composite structure.

[0043] The 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 steel frame H-beam 3 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.

[0044] Material characteristics: The soft steel plates 9 for sealing the dog bone holes on both sides, the soft steel plates 10 for bending parallel dog bone holes, and the soft steel plates 11 for sealing the front and rear are made of Q235 steel; the steel frame-support structure 1, the connecting end steel plate 5 welded to the upper area of ​​the H-beam herringbone support, the upper connecting steel plate 7 with round holes, and the lower connecting steel plate 8 are all made of Q345B steel; the high-ductility mortar 12 is made of fiber high-performance mortar with a strength grade of 40MPa-80MPa; the high-strength bolts 13 have a strength grade of not less than S8.8.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] Step 4: Preparation of the high-ductility mortar energy dissipation and vibration damping device for soft steel plates with parallel dog-bone holes under bending. High-ductility mortar is injected into the cavities between the dog-bone hole soft steel plates through the injection holes on the upper connecting plate. The high-ductility mortar flows through all the parallel dog-bone hole soft steel plates. After curing, the high-ductility mortar energy dissipation and vibration damping device for soft steel plates with parallel dog-bone holes under bending is formed.

[0049] 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.

[0050] 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.

[0051] Step 7: Assemble the bending-resistant parallel dog-bone hole soft steel plate for the high-ductility mortar 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

[0052] 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.

[0053] The construction process of a high-ductility mortar energy dissipation and vibration reduction device using parallel dog-bone hole soft steel plates for a steel frame-braced structure is as follows: S1. Factory prepares the steel frame H-beams, H-columns, H-shaped supports, and matching assembly components; S2. Factory cuts, punches, and welds the left and right side sealing skin dog-bone hole soft steel plates and the front and rear sealing soft steel plates, and punches the dog-bone hole soft steel plates; S3. Factory processes other steel components for the energy dissipation and vibration reduction device; S4. Connects the upper part with round holes... After welding the bending parallel dog bone hole soft steel plates to the corresponding positions of the steel plate and 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 prepares high ductility mortar, and pours the high ductility mortar into the cavity of the energy dissipation and vibration reduction device steel component. After curing, the high ductility mortar forms a bending parallel dog bone hole soft steel plate high ductility mortar energy dissipation and vibration reduction device.

[0054] On-site, high-strength bolts were used to assemble the steel frame, H-beams were used to weld the steel plate components at the upper end of the herringbone support, and high-ductility mortar energy dissipation and vibration reduction devices with soft steel plates and parallel dog bone holes were used to assemble the device.

[0055] The above is a typical embodiment of the present invention, and the implementation of the present invention is not limited thereto.

Claims

1. A high ductility mortar energy dissipation device of curved parallel dog bone hole soft steel plate, characterized in that, The application relates to a steel frame-supporting structure (1) and a bending parallel dog-hole soft steel plate high ductility energy dissipation and vibration reduction structure (6) arranged in the steel frame-supporting structure (1); the bending parallel dog-hole soft steel plate high ductility energy dissipation and vibration reduction structure (6) is sequentially arranged in the middle of the steel frame-supporting structure (1); the bending parallel dog-hole soft steel plate high ductility 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-hole soft steel plate (9), a bending parallel dog-hole soft steel plate (10) and a blocking soft steel plate (11), and high-ductility mortar (12) filled in the cavity of the multi-cavity steel component. In the steel frame-supporting structure (1), steel frame H-shaped steel columns (2) and upper and lower steel frame H-shaped steel beams (3) are connected by high-strength bolts (13) to form a steel frame; the bottom region of the H-shaped steel chevron brace (4) is welded to a connecting end steel plate component and connected to the upper flange of the lower steel frame H-shaped steel beam (3) by high-strength bolts (13); the bottom of the steel frame H-shaped steel column (2) is welded to a connecting bottom plate and a stiffening rib, the connecting bottom plate is connected to a screw rod embedded in the foundation to form a steel frame column foot; the end of the frame H-shaped steel beam (3) is welded to a rectangular end plate, bolt holes are formed in the rectangular end plate, 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 high-strength bolts (13) are used for connection; the thickness of the rectangular end plate welded to 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); stiffening ribs are welded to the both sides of the web of the H-shaped steel column (2) in the steel frame beam-column joint region, and the welding positions of the stiffening ribs are consistent with the elevations of the upper and lower flanges of the steel frame H-shaped steel beam (3); The both sides of the web of the H-shaped steel beam in the connecting region of the upper connecting circular-hole steel plate (7) and the lower flange of the steel frame H-shaped steel beam (3) are welded to stiffening ribs, and the thickness of the stiffening ribs is not less than the thickness of the web of the H-shaped steel beam; the H-shaped steel chevron brace (4) is a symmetrically arranged inclined H-shaped steel, and a connecting end steel plate (5) is welded to the upper end intersection region of the H-shaped steel chevron brace (4); the connecting end steel plate (5) welded to the upper end intersection region of the H-shaped steel chevron brace (4) is connected to the lower connecting steel plate (8) by high-strength bolts (13).

2. The energy-dissipating device according to claim 1, wherein the energy-dissipating device is a high-ductility mortar damper with a bent parallel dog-bone hole soft steel plate, characterized in that, The horizontal included angle between the H-shaped steel chevron brace (4) and the steel frame H-shaped steel beam (3) is 45-60 degrees.

3. The energy-dissipating device according to claim 1, wherein the energy-dissipating device is a high-ductility mortar damper with a bent parallel dog-bone hole soft steel plate, characterized in that, The steel frame H-shaped steel column (2) and the steel frame H-shaped steel beam (3) adopt welded or rolled H-shaped steel.

4. The energy-dissipating device according to claim 1, wherein the energy-dissipating device is a high-ductility mortar damper with a bent parallel dog-bone hole soft steel plate, characterized in that, A plurality of said bending parallel dog bone hole soft steel plates (10) are vertically arranged in parallel, and the upper and lower ends are respectively welded to the upper connecting circular hole steel plate (7) and the lower connecting steel plate (8), and the left and right sides are respectively welded to the blocking soft steel plate (11) to form a multi-cavity steel member; the outer side of the multi-cavity steel member is a blocking skin dog bone hole soft steel plate (9); the upper connecting circular hole steel plate (7) is provided with a reserved circular hole, and high-ductility mortar (12) is poured into the cavity of the multi-cavity steel member between the bending parallel dog bone hole soft steel plates (10) which are welded and formed, and the high-ductility mortar (12) is integrated with the multi-cavity steel member after curing to form a bending parallel dog bone hole soft steel plate high-ductility mortar energy-dissipation and vibration-reduction device (6).

5. The energy dissipation device according to claim 1, wherein the energy dissipation device is a high ductility mortar damper with bent parallel dog-bone hole soft steel plate, characterized in that, The upper connecting circular hole steel plate (7) is a rectangular steel plate with reserved circular holes and bolt holes, the thickness of which is not less than the thickness of the flange of the steel frame H-shaped steel beam (3), and the bolt hole positions on the upper connecting circular 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 circular hole steel plate (7) is provided with a reserved circular hole on the upper part of each cavity divided by the bending parallel dog bone hole soft steel plate (10), and the reserved circular hole is a ductile mortar pouring hole, the diameter of which is not less than 20 mm, and the width of the upper connecting circular hole steel plate (7) is not greater than the width of the flange of the steel frame H-shaped steel beam (3).

6. The energy dissipation device of claim 1, wherein the energy dissipation device is a high ductility mortar damper with curved parallel dog bone hole mild steel plate. 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 high-ductility energy-dissipation and vibration-reduction structure (6), and the size of the lower connecting steel plate (8) is consistent with that of the upper connecting circular hole steel plate (7).

7. The energy dissipation device of claim 1, wherein the energy dissipation device is a high ductility mortar damper with curved parallel dog bone hole mild steel plate. 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), and the rectangular soft thin steel plate is welded to the left and right ends of the upper connecting circular hole steel plate (7) and the lower connecting steel plate (8) after being covered with a skin.

8. The energy dissipation device according to claim 1, wherein the energy dissipation device is a high ductility mortar damper with bent parallel dog-bone hole soft steel plate, 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, which are formed by punching a series of dog bone-shaped divided polygonal holes in a rectangular soft steel plate.

9. The energy dissipation device of claim 1, wherein the energy dissipation device is a high ductility mortar damper with curved parallel dog bone hole mild steel plate. The front and rear blocking soft steel plates (11) are rectangular soft steel plates, which form a plurality of cavities between the blocking skin dog bone hole soft steel plate (9) and the bending parallel dog bone hole soft steel plate (10).

10. The energy dissipation device of claim 1, wherein the energy dissipation device is a high ductility mortar damper with curved parallel dog bone hole mild steel plate. 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 chevron-shaped support, the upper connecting circular hole steel plate (7) and the lower connecting steel plate (8) are made of Q345B steel.

Images