47results about How to "Reduce post-earthquake repair costs" patented technology

The invention discloses a fabricated multistory and high-rise prestressed steel frame-sway brace system provided with special-shaped columns, and relates to the technical field of structural engineering. The fabricated multistory and high-rise prestressed steel frame-sway brace system comprises fabricated profile steel plates, fabricated special-shaped columns and eccentric supporting members, wherein the fabricated profile steel plates comprise profile steel beams consisting of steel channels and floor slabs; the fabricated profile steel plates are prefabricated in a factory; at the construction site, the fabricated profile steel plates are mutually spliced with flange plates of the fabricated special-shaped columns through beam-end blanking plates of the fabricated profile steel plates, steel angles with equal legs and steel tightwires, and layers of the fabricated special-shaped columns are spliced at the site by bolts, so that a multilayer profile steel plate steel-frame structure is formed; on the basis of the steel-frame structure, the eccentric supporting members are connected to profile steel beams or column bottoms in beam and slab layers of the frame structure and taken as lateral force resisting members; and the fabricated profile steel plates, the fabricated special-shaped columns and the eccentric supporting members are all prefabricated in the factory and assembled at the construction site by bolts.

The invention discloses a special-shaped steel column frame structure joint easy to restore after an earthquake. According to the special-shaped steel column frame structure joint easy to restore after the earthquake, a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that the prestress self-reset joint easy to restore after the earthquake is formed. By the adoption of a prestress self-reset joint form, self-reset of the joint after the earthquake is achieved, and restoring cost after the earthquake is greatly reduced; the shock resistance of the joint is improved, and thus the shock resistance of a frame structure system is improved; compared with a traditional steel-structural construction joint, the special-shaped steel column frame structure joint easy to restore after the earthquake has the advantages that the safety performance is high, environmental pollution is light, the number of safety accidents is small, and construction cost is low.

The invention discloses a novel special-shaped steel column frame-steel plate shear wall easy to restore after an earthquake. According to the novel special-shaped steel column frame-steel plate shear wall easy to restore after the earthquake, a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that a prestress self-reset joint is formed; a self-reset column base and a prestress column base are used for optimizing the axial mechanical performance and the horizontal mechanical performance of the bottom of the column through a reinforcing plate, a bend-preventing steel plate is mainly used for dissipating energy of the earthquake, and a shear plate is used for preventing local deformation, caused by excessive shearing force, of the bottom of the column; the key component of the prestress column base is a prestress pull rod, the pull rod is used for providing precompression for the column so that the column can be tightly connected with the beam, as a result, approximate rigid connection can be achieved when the prestress column base bears small bending moment, and the self-reset capacity of the prestress column base after the earthquake is achieved; better shock resistance of the structure is achieved due to the steel plate shear wall.

The invention discloses a frame beam and column connecting joint comprising a replaceable energy dissipation part. The frame beam and column connecting joint comprises a frame column, a frame beam, the energy dissipation part and a restraining plate,wherein the frame beam includes a beam body section, a wing plate and a web plate; the energy dissipation part comprises an energy dissipation plate and a connecting lug plate, the energy dissipation plate includes an energy dissipation section, a column side connecting section and a beam side connecting section, wherein the column side connectingsection and the beam side connecting section are arranged at both ends of the energy dissipation section, the yield forces of the column side connecting section and the beam side connecting section are both greater than that of the energy dissipation section, the column side connecting section is detachably and fixedly connected with the frame column, the beam side connecting section is detachablyand fixedly connected with the frame beam, and the web plate is detachably connected with the connecting lug plate in a hinged mode; the restraining plate and the wing plate are correspondingly and fixedly arranged on both sides of the energy dissipation plate so as to limit sided displacement of the energy dissipation section, and gaps are arranged between the restraining plate and the energy dissipation section as well as between the wing plate and the energy dissipation section. According to the frame beam and column connecting joint, the ductility and energy dissipation capacity are high,the seismic performance is good, and the restoration efficiency is high after an earthquake, and the repairing cost is low.

The invention discloses a special-shaped steel column-prestress central supporting frame easy to restore after an earthquake. The special-shaped steel column-prestress central supporting frame easy to restore after the earthquake is characterized in that a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that a prestress self-reset joint is formed; a self-reset column base and a prestress column base are used for optimizing the axial mechanical performance and the horizontal mechanical performance of the bottom of the column through a reinforcing plate, a bend-preventing steel plate is mainly used for dissipating energy of the earthquake, and a shear plate is used for preventing local deformation, caused by excessive shearing force, of the bottom of the column; the key component of the prestress column base is a prestress pull rod, the pull rod is used for providing precompression for the column so that the column can be tightly connected with the beam, as a result, approximate rigid connection can be achieved when the prestress column base bears small bending moment, and the self-reset capacity of the prestress column base after the earthquake is achieved; better lateral resistance of the structure is achieved through prestress central supporting.

Provided is a novel post-earthquake easy-to-repair steel irregular column framework. Double-channel steel beams of the framework are connected with irregular columns through beam end sealing plates to form a welding-gap-free full-bolt connection mode. Prestress steel cables are applied to welding-gap-free full-bolt nodes to form prestress self-resetting nodes. Axial and horizontal stress performance of the bottoms of the columns are optimized through reinforcing plates by self-resetting column legs and prestress column legs, bending-proof steel plates are mainly used for dissipating earthquake energy, and shearing plates are used for preventing shearing force from being too large and leading to local bending of the bottoms of the columns. Key members of the prestress column legs are prestress pull rods which are used for providing prestress for the columns to enable the columns to be closely connected with the beams, the column legs can be in rigid connection similarly when the torque borne by the column legs is small, and a post-earthquake self-resetting capability is achieved.

The invention discloses a memory alloy self-restoring heat dissipation damper. A first inner pulling and pressing board and an outer pulling and pressing board capable of sliding relatively are arranged. A self-restoring structure is formed by a vertical blocking board and a limiting blocking board set so as to convert relative motion of the inner pulling and pressing board and the outer pulling and pressing board to a pulled state of memory alloy rods. Damping cushion is realized by utilizing material performance of the memory alloy rods. When the stress is too large, friction layers betweenthe inner pulling and pressing board and the outer pulling and pressing board act in common so as to dissipate energy input of the structure, and dissipation of great energy is realized through friction deformation, and absorption of dissipated energy by stressed parts in a building structure in an earthquake is reduced, so that an effect of protecting the building structure is realized. The memory alloy rods in the damper can enable the damper after an earthquake to restore to an initial state, so that residual deformation of a building is reduced and even eliminated after the earthquake. Theinvention can provide comparatively large damping force and utilizes the memory alloy rods and the friction layers to dissipate energy in a graded manner. The cost of the damper is reduced and structural energy dissipation requirements of different phases are met.

The invention discloses an assembling multi-section beam steel frame capable of self-centering after earthquake. An I-beam is connected with special-shaped columns of different forms through a web angle steel and a flange angle steel to form a connecting form of full bolts without weld seams; a middle I-beam is connected with an end I-beam through a web connecting plate and a high-strength silicone rubber plate to form a connecting form of full bolts without weld seams with good ductility and high energy consumption; a prestressed steel cable is applied at the connecting part of the full boltswithout the weld seams of the middle I-beam and the end I-beam to form self-centering nodes after the prestressed earthquake, and after the nodes are connected in sequence, a precast concrete-profiled steel plate composite slab or a poured concrete slab is assembled to form an assembling multi-section beam steel frame structure system capable of self-centering after the earthquake.

The invention discloses a post-earthquake self-resetting assembled multi-section beam shear wall steel frame, which is characterized in that a I-shaped steel beam is connected with different forms ofspecial-shaped columns through web angle steel and flange angle steel to form a weldless full-bolt connection mode; a middle I-shaped beam is connected with end I-shaped beams through web connecting plates and high-strength silicone rubber plates to form a weldless full-bolt connection mode with good ductility and strong energy dissipation ability; prestressed steel cables are applied to the junction of the weldless full-bolt middle I-shaped beam and the end I-shaped beams to form prestressed post-earthquake self-resetting nodes, and prefabricated concrete-profiled steel plate composite floorslabs or poured concrete floor slabs are assembled after the nodes are sequentially connected to form a post-earthquake self-resetting assembled multi-section beam shear wall steel frame structure system.

The invention relates to a fabricated type self-resetting frame system capable of recovering functions, and belongs to the field of structural engineering. The fabricated type self-resetting frame system is composed of two square steel columns with cantilever beam sections, an I-shaped beam section, a group of self-resetting devices and two groups of connecting devices. According to the fabricatedtype self-resetting frame system capable of recovering the functions, welding parts of the connecting devices are finished in a factory, the welding precision and quality are easy to control, and theconstruction speed and quality are improved; lower flange outer covering plates are arranged in an outer covering plate mode, can be used as supports of the beam sections in the installing process and have good performance visibility and replacement decidability; the self-resetting devices can ensure a predetermined performance design purpose of the capacity of structural earthquake energy dissipation and reduces the post-earthquake repairing cost; and through the targeted design, the damage position of a structure occurs to energy dissipation components such as high-strength bolts and connecting plates which are easy to replace under the action of earthquake loads, post-earthquake repairing is convenient, and the fabricated type self-resetting frame system is suitable for the developmentrequirements of a fabricated steel structure capable of recovering the functions.

The invention relates to a novel post-earthquake self-reset concrete framework-eccentric supporting structural system, and belongs to the technical field of earthquake prevention and disaster reduction. The initial rigidity of an embedded type cup-shaped foundation is basically the same as the rigidity of a cast-in-place concrete structure, under the condition of a small interlayer displacement angle, prestressed steel keeps elasticity, energy consummation steel bars enter the plastic state to dissipate energy, and the embedded type cup-shaped foundation can reset to the initial position after the earthquake action. Compared with the prior art, the novel post-earthquake self-reset concrete framework-eccentric supporting structural system overturns a traditional concrete structural building foundation, and basically solves the difficult problems that concrete structures are not easy to assemble and poor in ductility. Compared with the traditional concrete structural foundation, the novel post-earthquake self-reset concrete framework-eccentric supporting structural system has the advantages of being high in safety performance, small in environmental pollution, few in accident, low in manufacturing cost of projects and the like.

The invention discloses a fabricated multistory and high-rise prestressed self-resetting steel frame structure system provided with special-shaped columns, and relates to the technical field of structural engineering. The fabricated multistory and high-rise prestressed self-resetting steel frame structure system comprises fabricated profile steel plates and fabricated special-shaped columns, wherein the fabricated profile steel plates comprise profile steel beams consisting of steel channels and floor slabs; the fabricated profile steel plates are prefabricated in a factory; at the construction site, the fabricated profile steel plates are mutually spliced with flange plates of the fabricated special-shaped columns through beam-end blanking plates of the fabricated profile steel plates, and layers of the fabricated special-shaped columns are spliced at the site by bolts, so that a multilayer profile steel plate steel-frame structure is formed; and the fabricated profile steel plates and the fabricated special-shaped columns are prefabricated in the factory and assembled at the construction site by bolts.

The invention relates to a novel post-earthquake self-reset concrete framework-center supporting structural system, and belongs to the technical field of earthquake prevention and disaster reduction. The initial rigidity of an embedded type cup-shaped foundation is basically the same as the rigidity of a cast-in-place concrete structure, under the condition of a small interlayer displacement angle, prestressed steel keeps elasticity, energy consummation steel bars enter the plastic state to dissipate energy, and the embedded type cup-shaped foundation can reset to the initial position after the earthquake action. Compared with the prior art, the novel post-earthquake self-reset concrete framework-center supporting structural system overturns a traditional concrete structural building foundation, and basically solves the difficult problems that concrete structures are not easy to assemble and poor in ductility. Compared with the traditional concrete structural foundation, the novel post-earthquake self-reset concrete framework-center supporting structural system has the advantages of being high in safety performance, small in environmental pollution, few in accident, low in manufacturing cost of projects and the like.

The invention discloses a diamond-shaped opening H-shaped steel damper capable of preventing out-plane buckling and relates to the technical field of disaster prevention and seismic reduction of engineering structures. The diamond-shaped opening H-shaped steel damper is composed of diamond-shaped opening H-shaped steel, an outer steel sleeve, an inner steel plate, a steel piston, screws, high-strength bolts and nuts. An upper connecting plate and a lower connecting plate of the diamond-shaped opening H-shaped steel are connected with the outer steel sleeve and the inner steel plate through the high-strength bolts correspondingly. The inner steel plate is in welded connection with the steel piston. The outer steel sleeve and the steel piston are connected with the screws correspondingly. The damper is connected with a structure through the screws and arranged in the large-deformation position of the structure. When an earthquake occurs, the two screws generates axial displacement in the axial direction, so that a web plate of the diamond-shaped opening H-shaped steel only generates buckling and shearing deformation in the plane, and the problem of out-plane buckling of a traditional diamond-shaped opening H-shaped steel damper can be effectively prevented. Therefore, earthquake energy can be dissipated stably, the earthquake reaction of the structure is reduced, and structure damage is limited.

The invention discloses an assembling multi-section beam center prestress support steel frame capable of self-centering after earthquake. An I-beam is connected with special-shaped columns of different forms through a web angle steel and a flange angle steel to form a connecting form of full bolts without weld seams; a middle I-beam is connected with an end I-beam through a web connecting plate and a high-strength silicone rubber plate to form a connecting form of full bolts without weld seams with good ductility and high energy consumption; a prestressed steel cable is applied at the connecting part of the full bolts without the weld seams of the middle I-beam and the end I-beam to form self-centering nodes after the prestressed earthquake, and after the nodes are connected in sequence, aprecast concrete-profiled steel plate composite slab or a poured concrete slab assembling prestress center support member is assembled to form an assembling multi-section beam center prestress support steel frame structure system capable of self-centering after the earthquake.

The invention provides a self-resetting steel frame beam-side column joint and a construction method thereof. The self-resetting steel frame beam-side column joint comprises a steel beam, wherein thesteel beam is horizontally arranged on one side of a steel column; a shape memory alloy plate is arranged between a flange of the steel beam and a flange of the steel column, and the shape memory alloy plate is arranged on the outer side of the flange of the steel beam; one end of the shape memory alloy plate is connected with the flange of the steel beam, and the other end of the shape memory alloy plate is connected with the flange of the steel column; and friction energy dissipaters are symmetrically arranged on the two sides of a web of the steel beam, one end of each friction energy dissipater is connected with the steel beam, and the other end of each friction energy dissipater is connected with the flange of the steel column. According to the self-resetting steel frame beam-side column joint and the construction method thereof, the shape memory alloy plate is arranged, and the self-resetting function of the joint is achieved by utilizing the plastic deformation of the shape memory alloy plate; and friction energy dissipation can be achieved between the friction energy dissipaters and the flange and the web of the steel beam, and the friction energy dissipaters and the shapememory alloy plate generate a synergistic effect to jointly absorb seismic energy at the joint, so that the structural ductility and energy dissipation capacity of the steel frame beam-side column joint are effectively improved, and the post-earthquake repair cost of the structure is reduced.

The invention discloses a concrete frame mechanically-assembled balcony. A construction technology of improving the balcony is adopted, a large amount of work is completed in a factory in a prefabricated mode, and only prefabricated components and a concrete frame need to be mechanically assembled on site. The concrete frame mechanically-assembled braced balcony is basically constituted by the components of a cantilever beam, a prestressed cable, a profiled steel sheet, a support and the like. A traditional concrete structure balcony construction process is qualitatively reformed, a prestressed technology and the shape steel cantilever beam are combined, safety under the effect of an earthquake is ensured, automatic resetting can be achieved after the earthquake, the post-earthquake repairing cost is greatly reduced, and the problems that a concrete structure is not prone to being fabricated and poor in ductility are basically solved; and compared with a traditional concrete balcony, the concrete frame mechanically-assembled balcony has the multiple advantages that dual safety guarantees are achieved, environmental pollution is small, and the comfort degree is high, and a concreteframe structure of the balcony has the characteristics of being low in construction cost and small in environmental pollution.

The invention relates to a damper utilizing a yielding deformation mechanism in the soft steel surface to dissipate vibration energy, and the damper is used for energy dissipation and damping of house buildings. The bending-shearing separation control type fabricated metal damper can serve as a partition element of the building function to be mounted in a structure and does not bear a vertical load. When the damper is subjected to the effect of a wind load or a seismic load, the elastic-plastic hysteretic behavior produced by deformation of metal energy dissipation sheets can dissipate the energy input by the wind load or the seismic load, and thus main components of the structure are protected. The metal energy dissipation sheets adopt bending-shearing separation control, the cumulative plastic deformation of the energy dissipation sheets is greatly reduced, and the low cycle fatigue performance of the damper is improved.

The invention provides a self-resetting steel frame beam-middle column joint and a construction method thereof. The self-resetting steel frame beam-middle column joint comprises two steel beams; the two steel beams are horizontally arranged on two sides of a middle column; a shape memory alloy bent steel plate is arranged between the flange of each of the steel beams and the flange of the middle column; the shape memory alloy bent steel plates are arranged on the outer sides of the flanges of the steel beams; one ends of the shape memory alloy bent steel plates are connected with the flanges of the steel beam, and the other ends are connected with the flange of the middle column; friction energy dissipaters are symmetrically arranged on two sides of webs of the steel beams; and one ends ofthe friction energy dissipaters are connected with the steel beams, and the other ends are connected with the flange of the middle column. The self-resetting function of the joint is achieved throughplastic deformation of the shape memory alloy bent steel plates; and friction energy dissipation can be achieved between the friction energy dissipaters and the flanges and webs of the steel beams, the friction energy dissipaters and the shape memory alloy bent steel plates generate a synergistic effect to jointly absorb earthquake energy at the joint, the structural ductility and energy dissipation capacity of the steel frame beam-middle column joint are effectively improved, and the post-earthquake repair cost is reduced.

The invention relates to an assembly type self-resetting middle column connecting device capable of restoring functions, and belongs to the field of structural engineering. The device comprises a square steel tube middle column with two cantilever beam sections, two H-shaped beam sections, a self-resetting device and two connecting device bodies. Welding parts of the joint connecting device are all completed in a factory, the welding seam precision and quality are easier to control, and the construction speed and the construction quality can be improved; according to the anti-buckling idea, upper flange inner cover plates are arranged to be inner cover plates so as to control the buckling amplitude value of the flange cover plates, and lower flange outer cover plates are arranged to be outer cover plates, so that good performance visuality and replacement decidability are achieved; the self-resetting device can guarantee a preset performance design target of the structure dissipating seismic energy and reduce the post-earthquake repair cost. By means of the targeted design, damage positions of the structure under the action of earthquake loads are on the high-strength bolts, connecting plates and other energy consumption components easy to replace, post-earthquake repair is facilitated, and the connecting device meets development requirements of the assembly type steel structure capable of restoring the functions.

The invention discloses a post-earthquake self-reset mountable multi-section beam steel frame node. The post-earthquake self-reset mountable multi-section beam steel frame node is characterized in that I steel beams are connected to different forms of special-shaped columns through web angle iron and flange angle iron to form a weldless full-bolt connection mode; middle I-beams and end I-beams areconnected through web connecting plates and high-strength silicone rubber plates to form a weldless full-bolt connection mode with good ductility and high energy consumption performance; and a prestressed steel cable is applied to a weldless full-bolt joint between the each middle I-beam and the each end I-beam to form a pre-stress post-earthquake self-reset node.

The invention discloses a steel frame mechanized assembly-type supporting balcony, which improves the construction technology of the balcony. A lot of work is completed in the factory, and people onlyneed to mechanically assemble prefabricated components and a steel frame on site. The basic structure of the steel frame mechanized assembly-type supporting balcony includes the components such as cantilever beams, prestressing cables, profiled steel plates and supports. The steel frame mechanized assembly-type supporting balcony is a qualitative reform of the traditional construction technologyof steel frame structured balconies, the combination of the prestressing technology and the profile steel cantilever beams ensures the safety under the action of an earthquake, and self-reset can be realized after the earthquake, thereby greatly reducing the restoration cost after the earthquake, and reflecting the advantages of easy assembly and good ductility of the steel frame structure. Compared with the traditional cast-in-situ balconies, the balcony disclosed by the invention has many advantages such as double security guarantee, small environmental pollution and high comfort level. Thesteel frame structure with the balcony has the characteristics of low manufacturing cost, less environmental pollution and the like.

The invention discloses a high-strength bolt connection arc end plate slippage friction energy consumption column base joint, and belongs to the technical field of building engineering and steel structures. The joint is composed of a steel column, two arc end plates and a high-strength bolt. The steel column and the arc plates are in welded line connection. The invention provides a manufacturing method of the high-strength bolt connection arc end plate slippage friction energy consumption column base joint. The joint is the assembled joint, the manner is simple, site construction is convenient, the joint can rotate, an interface generates slippage friction, earthquake energy is dissipated, in the rotating process, the joint is in the elastic state, and the plastic deforming and damage appearing in an after-earthquake structure can be avoided to the maximum degree.

The invention relates to a flanged restorable-function steel-framed eccentrically braced system and belongs to the field of structural engineering. Main components of the system herein and main partsof connection devices can be produced in a factory, so that construction period is greatly shortened, and construction quality is improved. An upper flange cover plate is set in an inner cover plate form subjected to flange cover plate buckling amplitude control. A lower flange cover plate is set in an outer cover plate form, having good performance visibility, changeability and decidability. A self-resetting device ensures predetermined form design objective of the system herein to dissipate seismic energy and also ensures a reduction in post-earthquake repairing cost, and safety of the system herein is improved. The specific design helps ensure that damaged parts of the system herein under the action of seismic load easily occur to easily-changeable high-strength bolts, connection platesand other energy-dissipating components, post-earthquake repairing is facilitated, and the development requirement of restorable-function prefabricated steel structures is satisfied.

The invention discloses an integral abutment H-shaped steel pile node anti-seismic structure locally using rubber concrete, which comprises an abutment and an H-shaped steel pile embedded into the abutment along the length of the abutment, and the rubber concrete embedded into the concrete abutment is poured on the periphery of the top of the H-shaped steel pile. And the strength of the rubber concrete is basically consistent with that of concrete forming the abutment. Ordinary concrete can be alternately arranged with the rubber concrete in the length direction of the abutment, or corrugatedsleeves are arranged between the rubber concrete and the side face of the abutment. According to the integral abutment H-shaped steel pile node anti-seismic structure, the rotating capacity of the integral abutment H-shaped steel pile node is improved, the lateral rigidity is reduced, the allowable horizontal displacement of a top structure in the longitudinal direction of a bridge is increased, the ductility and crack resistance of concrete at the integral abutment H-shaped steel pile node are improved, and the anti-seismic property of the node is improved. The use of the rubber concrete is beneficial to solving the problems of environmental protection and resource shortage caused by waste rubber, and the social effect is remarkable.

The invention discloses a self-resetting hollow pier. A cap beam and a foundation are located at the two ends of a hollow column, an upper protection plate is installed at the lower end of the cap beam, a lower protection plate is installed at the upper end of the foundation, an upper energy consumption sleeve and a lower energy consumption sleeve are installed at the two ends of the hollow columnrespectively, an upper fixing piece is installed on the periphery of the upper energy consumption sleeve, and a lower fixing piece is installed on the periphery of the lower energy consumption sleeve, the post-tensioned prestressing tendons are positioned in the hollow columns, and two ends of each post-tensioned prestressing tendon extend into the cap beam and the foundation respectively and arefixed; the invention further discloses a self-resetting hollow pier construction method. The construction method comprises the steps of prefabricating the cap beam provided with the upper protectionplate, and reserving ducts; reserving a duct in the foundation, positioning the lower protection plate, pouring concrete, and placing the hollow column on the lower protection plate; placing the cap beam on the hollow column, wherein the upper protection plate contacts with the hollow column; mounting and fixing post-tensioned prestressed tendons; and installing the upper energy consumption sleeveand the lower energy consumption sleeve at the two ends of the hollow column respectively. According to the self-resetting hollow pier and the construction method thereof, the energy dissipation sleeves are easy to replace, the maintenance cost is reduced, and the post-earthquake recovery capacity is improved.

The invention relates to a self-resetting steel frame eccentric support system and belongs to the field of structural engineering. According to the self-resetting steel frame eccentric support system,the major components of the welded part of a joint connecting device can be manufactured in factory, so that the construction cycle is greatly shortened, and the construction quality can be improved;an upper flange cover plate is set into an inwards covering plate mode for bumped amplitude control; a lower flange cover plate is set into an outwards covering plate mode to achieve high performance, good visibility and replacement decidability; a self-setting device can ensure a preset performance design objective for structural seismic energy dissipation and reduce post-seismic restoration costs, thereby ensuring structural safety; through targeted design, damage of a structure under seismic load are prone to taking place in dissipative components easy to replace such as high-strength bolts and connecting plates to facilitate post-seismic restoration. Therefore, the self-resetting steel frame eccentric support system is applicable to meeting the demands of development of fabricated steel structures with a restorable function.