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114results about How to "Realize self-resetting" patented technology

Fabricated multistory and high-rise prestressed steel frame-sway brace system provided with special-shaped columns

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.
Owner:BEIJING UNIV OF TECH

Butt jointed crawler type mobile robot

InactiveCN1861332ARealize split independent operationAchieve self-healingManipulatorIndependent motionButt joint
A caterpillar belt type moving robot able to be butt-connected with another robot to form a robot group in order to run on complex road or climb over obstruction is composed of equivalent ball joint mechanism, front and back connection parts, left and right caterpillar belt mechanisms, and fastening mechanism for butt connection.
Owner:BEIHANG UNIV

Special-shaped steel column frame structure joint easy to restore after earthquake

ActiveCN103669594AImprove securityHave self-centered abilityShock proofingPre stressEngineering
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.
Owner:南通新丰威机械科技有限公司

Novel special-shaped steel column frame-steel plate shear wall easy to restore after earthquake

ActiveCN103669650AImprove securitySmall residual deformation after earthquakeWallsPre stressShock resistance
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.
Owner:南通新丰威机械科技有限公司

Novel controlled frame structural system with self-resetting energy dissipating brace

The invention relates to a novel controlled swing frame system with self-resetting energy-dissipating supports, which belongs to the field of anti-seismic structural systems. It is mainly composed of frame columns, frame beams, self-resetting energy-dissipating supports, controlled beam-column nodes, controlled column foot nodes and foundations. The main controlled frame structure is subjected to vertical loads. When the structural system is subjected to an earthquake, the self-resetting energy-dissipating supports dissipate the seismic energy and provide lateral stiffness and restoring force to protect the main controlled frame structure from damage.
Owner:TONGJI UNIV

Special-shaped steel column-prestress central supporting frame easy to restore after earthquake

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.
Owner:南通新丰威机械科技有限公司

Shape memory alloy friction composite vibration isolator

The invention discloses a shape memory alloy friction composite vibration isolator which comprises an inner barrel and an outer barrel, wherein the inner barrel is connected with an upper flange, the outer barrel is connected with a lower flange, the inner barrel and the outer barrel are coaxial, and the inner barrel is connected with the outer barrel through multiple layers of austenite shape memory alloy standard wires in the axial direction. A slidable inner barrel base is arranged under the inner barrel, an axial austenite shape memory alloy spring and a plurality of sets of radial austenite shape memory alloy springs are arranged inside the slidable inner barrel base, the radial austenite shape memory alloy springs are connected with the inner barrel through a sliding friction pair, and the lower portion of the slidable inner barrel base is connected with the outer barrel through a self-adapted sliding friction pair. A slope with a small upper portion and a large lower portion is arranged on the front portion of a sliding block, and a chamfer corresponding to the slope is arranged on the outer wall of the lower portion of the inner barrel. According to the shape memory alloy friction composite vibration isolator, the austenite shape memory alloy is characterized in that deformation self-reset capacity is strong and the energy consumption of friction elements is high, the characteristics of the austenite shape memory alloy are made full use, and the purposes of multidirectional and vertical vibration control in the horizontal plane and self-reset are achieved.
Owner:HENAN POLYTECHNIC UNIV

Intelligent coin sorting device

The invention relates to an intelligent coin sorting device which comprises the components of a mixed coin separating mechanism, a paper money sorting mechanism, a coin sorting mechanism and a coin packaging mechanism. The mixed coin separating mechanism comprises a screening roller and a roller driving assembly. The mixed coins are dumped from the top opening of the screening roller. The roller driving assembly drives the screening roller to rotate. The coins fall through screening holes. The paper money slides out through the bottom opening of the screening roller. The paper money sorting mechanism comprises a paper twisting trough assembly, a single-paper-piece conveying assembly, an image identification assembly and a paper money classifying and collecting assembly. The paper twisting trough assembly performs twisting on a single piece of paper money. The single-paper-piece conveying assembly conveys the single piece of paper money to the inlet of the image identification assembly. After the image identification assembly identifies the type of the paper money through image acquisition, the paper money is classified and put into the paper money classifying and collecting assembly. Compared with the prior art, the intelligent coin sorting device realizes automatic coil sorting and furthermore has advantages of saving labor cost, improving sorting efficiency and sorting precision, etc.
Owner:EAST CHINA UNIV OF SCI & TECH

Novel post-earthquake easy-to-repair steel irregular column framework

InactiveCN103696503AImprove securitySmall residual deformation after earthquakeShock proofingHorizontal stressPre stress
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.
Owner:BEIJING UNIV OF TECH

Post-tensioning self-resetting joints capable of multi-stage energy dissipation and assembling method for post-tensioning self-resetting joints

The invention discloses post-tensioning self-resetting joints capable of multi-stage energy dissipation and an assembling method for the post-tensioning self-resetting joints. The joints can slide relative to one another, and provide energy dissipation under small deformation through a mode of unilateral friction between a T-shaped piece and a beam flange, with increasement of deformation of openings of the joints, an SMA damper connected with a T-shaped plate begins to enter a phase transition energy dissipation phase, and introduced metal damping cannot increase residual deformation of the joints at the same prestress level; and for avoiding the characteristic of low redundancy of the post-tensioning joints, contact pressure-bearing of a bolt rod connecting the T-shaped piece and the beam flange and the oblong hole wall of the beam flange is allowed through an oblong hole, and under extreme conditions, collapse can be effectively resisted. According to the post-tensioning self-resetting joints, under small to middle seisms, friction damping is used for energy dissipation, energy dissipation in a combined energy dissipation mode can be realized by cooperating with SMA phase transition under middle to large seisms, and by means of post-tensioning prestress reinforcements, complete resetting is realized; and under the extreme conditions, joint force transfer is transformed intocollapse resistance in a hole wall pressure-bearing mode, and multi-stage energy dissipation and the multi-redundancy property are realized.
Owner:CHONGQING UNIV +1

Pull-press self-resetting viscoelasticity energy dissipation support

The invention discloses a pull-press self-resetting viscoelasticity energy dissipation support. The support is characterized by comprising an inner cylinder provided with a spring and viscoelasticitymaterials inside and two outer cylinders. Anchorage devices are installed on the two outer cylinders, adapting pieces are installed at one ends of the outer cylinders, sleeves with hole passages are installed on the other ends of the outer cylinders, and baffles are installed in the sleeves; the spring is installed in the inner cylinder sleeved with the outer cylinders at two ends, and two ends ofthe spring are against the baffles in the outer cylinders; the viscoelasticity materials are installed in the gaps of the outer cylinders and the inner cylinder; the inner cylinder is installed on asliding rail through a sliding rod and fixed by nuts; the two outer cylinders and the inner cylinder sleeved the two outer cylinders are fixed by the anchorage devices. Compared with the prior art, the support is simple in structure and easy to assemble; the pull-press self-resetting is achieved, the damping effect is good, the supporting performance is greatly improved, the displacement angle between structure residue layers is effectively reduced, and the repair costs are decreased.
Owner:ZHONGCHUAN NO 9 DESIGN & RES INST

Self-resetting three-way limiting rubber support

InactiveCN109577178ALimit horizontal relative displacementLimit relative displacementBridge structural detailsShape-memory alloyAlloy
The invention relates to a self-resetting three-way limiting rubber support which comprises an upper support plate (3), a lower support plate (14), rubber laminated layers and shape memory alloy stranded wires (8), wherein the rubber laminated layers are placed between the upper support plate (3) and the lower support plate (14), the shape memory alloy stranded wires (8) are arranged around the rubber laminated layers, and the two ends of the shape memory alloy stranded wires (8) are connected with the upper support plate (3) and the lower support plate (14). Compared with the prior art, the self-resetting three-way limiting rubber support has great shock absorption and limiting capacity under the effect of horizontal and vertical earthquakes, falling-off damage of bridges is prevented, meanwhile, self-resetting of the bridges during earthquakes can be accelerated, in addition, the energy-dissipating capacity is achieved, damage of piers is reduced to the greatest extent, and the restorability of the bridges is improved.
Owner:TONGJI UNIV

Self-resetting rigidity self-adaptive control assembly type beam-column joint

The invention discloses a self-resetting rigidity self-adaptive control assembly type beam-column joint. A prefabricated column (1) and a prefabricated beam (2) are connected in a hinged mode througha column T-shaped connecting plate (6), a beam T-shaped connecting plate (7) and a hinge pin (11), a saddle-shaped circular plate (8) and a rubber circular plate (9) which can achieve variable rigidity are installed between a first lug plate (6-2) of the column T-shaped connecting plate and a second lug plate (7-2) of the beam T-shaped connecting plate, and a high-elasticity piece (13) is tensioned, fixed and bolted between U-shaped clamping grooves (12) of a first vertical plate (6-1) of the column T-shaped connecting plate and U-shaped clamping grooves (12) of a second vertical plate (7-1) of the beam T-shaped connecting plate through a clamp (14). According to the self-resetting rigidity self-adaptive control assembly type beam-column joint, self-adaptive control over the structure under the action of external loads of different strengths is achieved, large plastic damage to components is avoided, meanwhile, complete reset can be basically achieved after an earthquake, dry operationconstruction of the whole joint is achieved, connection is reliable, installation is convenient, and rapid replacement can be achieved.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Assembling multi-section beam steel frame capable of self-centering after earthquake

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.
Owner:BEIJING UNIV OF TECH

Post-earthquake self-resetting assembled multi-section beam shear wall steel frame

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.
Owner:BEIJING UNIV OF TECH

Spring type self-resetting beam column joint

ActiveCN113502917ANode connection is convenientEasy to disassemble, replace and repairProtective buildings/sheltersShock proofingClassical mechanicsSteel frame
The invention discloses a spring type self-resetting beam column joint. The spring type self-resetting beam column joint comprises a steel frame column, a cantilever short beam, a connecting beam, an energy consumption damper, a connecting device and a restoring device. One end of the cantilever short beam is welded with the steel frame column, and the other end of the cantilever short beam is connected with the connecting beam through a connecting device; transverse stiffening rib plates and longitudinal stiffening rib plates are arranged on webs of the cantilever short beam and webs of the connecting beam, recovery devices are arranged between the transverse stiffening rib plates and the cantilever short beam, and energy dissipation dampers, the transverse stiffening rib plates, the longitudinal stiffening rib plates and the recovery devices are arranged on the front side and the rear side of the cantilever short beam and the front side and the rear side of the connecting beam. The energy dissipation dampers comprise upper connecting plates, lower connecting plates and mild steel energy dissipation steel sheets, via holes are formed in the inner sides of the upper connecting plates, a plurality of grooves are formed in the lower surfaces of the upper connecting plates and the upper surface of a transverse plate of the lower connecting plate, and the multiple mild steel energy dissipation steel sheets are inserted into the grooves. The steel structure is high in energy dissipation performance and self-resetting capacity, and connecting parts are convenient to disassemble and repair.
Owner:YANSHAN UNIV

Prestress-free tough steel structure composed of hinging columns and elastic resetting beam

The invention discloses a prestress-free tough steel structure composed of hinging columns and an elastic resetting beam. The prestress-free tough steel structure comprises the elastic resetting beamand the two column foot hinging box columns; the elastic resetting beam comprises two cantilever section I-shaped steel beams, a middle section I-shaped steel beam and buckling-restrained high-strength steel rods, the cantilever section I-shaped steel beams are fixed to the column foot hinging box columns, the middle section I-shaped steel beam is connected between the two cantilever section I-shaped steel beams, the buckling-restrained high-strength steel rods are symmetrically arranged on the two sides of a web plate along the central axis of the beam, one ends of the buckling-restrained high-strength steel rods are in fastening connection with web plates of the cantilever section I-shaped steel beams, and the other ends of buckling-restrained high-strength steel rods are in fastening connection with a web plate of the middle section I-shaped steel beam; and the prestress-free tough steel structure is arranged in a left-right symmetry mode. By utilizing elastic restoring force of thebuckling-restrained high-strength steel rods after an earthquake and through cooperation with hinged column feet, overall self-resetting of a joint and the columns is realized under the prestress-free situation. The anti-shear bearing capacity is provided through splicing angle steel, and the problem of weak anti-shear capability of a traditional self-resetting joint is solved.
Owner:SOUTH CHINA UNIV OF TECH +1

Separable sheath floor-adding structure of masonry buildings and floor-adding method thereof

The invention discloses a separable sheath floor-adding structure of masonry buildings and a floor-adding method thereof, and belongs to the technical field of building reconstruction. Pile foundations are arranged under steel reinforced concrete battened columns, bottom plates and wing plates are arranged on the bottoms of the columns, the steel reinforced concrete battened columns are arranged on bearing tables in a floating mode, pre-stress steel strands are arranged between the lower parts of the steel reinforced concrete battened columns and the bearing tables, and the parts, higher than the masonry buildings, of the steel reinforced concrete battened columns are connected through steel Vierendeel trusses. According to the invention, the earthquake action is weakened through the structure swaying principle; the wing plates can be bent to dissipate energy and can be conveniently replaced after earthquakes; the sheath floor-adding structure has the self-restoring ability through the pre-stress steel strands, and structural residual deformation after the earthquakes is reduced. The separable sheath floor-adding structure overcomes two earthquake resistance shortcomings namely fragile first layers and large spans of common separable sheath floor-adding structures, and has the advantages that the earthquake action can be weakened, the structural damage parts can be controlled and the structural functions can be restored. According to the floor-adding method, all construction work is carried out outside the buildings, and problems caused by indoor construction are avoided.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Novel post-earthquake self-reset concrete framework-eccentric supporting structural system

ActiveCN103790258ASolve the problem of difficult assemblyAvoid pollutionShock proofingPre stressSteel bar
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.
Owner:湖南汨罗循环经济产业园区科技创新服务中心

Self-resetting friction energy dissipation steel frame joint based on shape memory alloy

The invention relates to a self-resetting friction energy dissipation steel frame joint based on shape memory alloy. A gap is reserved between an H-shaped steel column and an H-shaped steel beam; steel sleeve plates are welded to the two sides of a beam-column joint area formed by the H-shaped steel column and the H-shaped steel beam correspondingly, steel sleeve plate hole grooves are formed in the middle portions, close to the side of the H-shaped steel column, of the steel sleeve plates, and the steel sleeve plate hole grooves are oval; a beam circular hole is formed in the middle of an H-shaped steel beam web, close to the side of the H-shaped steel column, of the H-shaped steel beam, a third shape memory alloy rib hole channel is formed in an upper flange of the H-shaped steel beam, and a fourth shape memory alloy rib hole channel is formed in a lower flange of the H-shaped steel beam; reinforcing plates are welded to the two sides of the beam circular hole, the height of the reinforcing plates is equal to that of the web of the H-shaped steel beam, and reinforcing plate round holes are formed in the reinforcing plates and correspond to the beam circular hole; and according tothe joint, the problems of residual deformation, brittle failure, insufficient energy consumption and the like of the steel frame under the earthquake action are effectively solved.
Owner:YANGZHOU UNIV

Vehicular continuous packaging garbage can

The invention relates to a vehicular continuous packaging garbage can which comprises a main cylinder, a garbage bag storage mechanism, a transmission mechanism, a door opening mechanism, a cutting mechanism, a binding mechanism and sealing mechanisms. The garbage bag storage mechanism comprises an auxiliary cylinder and an upper cover and is used for storing long-cylinder plastic bags without hotcutting, the transmission mechanism is mounted at the bottom of the main cylinder and comprises an outer pedal and an inner pedal, power is transmitted to mechanisms through three groups of steel wire ropes, the binding mechanism and the sealing mechanisms are mounted in the main cylinder according to a set sequence, the cutting mechanism are mounted in the middle of the two sealing mechanisms, the steel wire ropes drive the door opening mechanism, the binding mechanism, the sealing mechanisms and the cutting mechanism to move according to sequences when the pedals are stepped, two sections of a garbage bag are bound, sealed and cut, the lower garbage bag slides out from a garbage can door, the upper garbage bag is sealed and then serves as bottom of next garbage bag packaging, and the mechanisms reset through corresponding spring mechanisms when the pedals are loosened, so that a simple, efficient and continuous garbage packaging function is achieved.
Owner:CHANGAN UNIV

Self-resetting swing glued wooden column with column boot

The invention provides a self-resetting swing glued wooden column with a column boot. The self-resetting swing glued wooden column comprises the column boot, wherein the column boot comprises a bottomplate; a square steel tube is arranged on the bottom plate; stiffening ribs are arranged between the left side and the right side of the square steel tube and the bottom plate; the column boot is arranged between the bottom of the glued wooden column and a foundation; and the bottom of the glued wooden column is positioned in the square steel tube. A column foot of the glued wooden column is sleeved with the column boot, extra restoring force is provided for the glued wooden column to resist lateral load, and the anti-seismic property of the glued wooden column is improved. The outer column boot is placed on the top surface of the foundation in a floating manner, under the effect of horizontal force, the glued wooden column can be lifted along with the column boot to swing to dissipate energy, and self-resetting after an earthquake is realized by constraint moment of a disc spring on the column boot. The self-resetting swing glued wooden column is simple in structure and good in energy dissipation performance, and has high self-resetting ability.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Fabricated multistory and high-rise prestressed self-resetting steel frame structure system provided with special-shaped columns

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.
Owner:BEIJING UNIV OF TECH

Novel post-earthquake self-reset concrete framework-center supporting structural system

ActiveCN103790259AImprove securitySmall residual deformation after earthquakeShock proofingPre stressEngineering
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.
Owner:湖南汨罗循环经济产业园区科技创新服务中心

Automobile self-resetting vibration absorber

PendingCN107830096AGood reset effectGood driving stability and handlingSpringsGas and liquid based dampersCylinder blockHydraulic fluid
The invention relates to an automobile self-resetting vibration absorber which comprises a working cylinder assembly and a piston rod assembly; the working cylinder assembly comprises an oil storage cylinder assembly and an inner working cylinder; the working cylinder assembly is filled with hydraulic oil; an air bag is arranged between the oil storage cylinder assembly and the inner working cylinder, and sleeves the peripheral surface of the inner working cylinder in the axial direction; the two axial ends of the air bag are in sealing fit with the peripheral surface of the inner working cylinder; an air cavity is formed between the middle part of the air bag and the peripheral surface of the inner working cylinder; the piston rod assembly is arranged in the inner working cylinder; the piston rod assembly comprises a piston rod; the piston rod is sleeved with a guider, a first locating casing pipe, a second locating casing pipe and a restoring valve assembly from left to right sequentially; the first locating casing pipe is fixed to the inner wall of the inner working cylinder in an interference manner; and the second locating casing pipe can slide horizontally along the inner working cylinder. The automobile self-resetting vibration absorber is simple in structure, can achieve self-resetting and is good in resetting effect, and good controllability and driving stability of anautomobile are realized.
Owner:NANYANG XIJIAN AUTOMOBILE SHOCK ABSORBER

Assembling multi-section beam center prestress support steel frame capable of self-centering after earthquake

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.
Owner:BEIJING UNIV OF TECH

Self-resetting viscous damper based on combined spring

The invention discloses a self-resetting viscous damper based on a combined spring. The damper comprises a viscous damping energy dissipation device, a spring resetting device and a force transmission device, the viscous damping energy dissipation device is in linkage with the spring resetting device through the force transmission device, and the force transmission device comprises an outer force transmission component and an inner force transmission component. The outer force transmission component comprises a barrel, the viscous damping energy dissipation device and the spring resetting device are both installed in the barrel, the inner force transmission component is a guide rod, the guide rod is arranged in the axial direction of the barrel, and a piston in the viscous damping energy dissipation device is fixedly connected to the guide rod. The spring resetting device comprises a resetting spring piece and two bearing plates arranged at the two axial ends of the resetting spring piece respectively, and the resetting spring piece and the bearing plates are connected to the periphery of the guide rod in a sleeving mode and can slide relative to the guide rod. The damper is excellent and controllable in self-resetting capability, can stably consume energy under high and low frequency excitation, has an overload protection characteristic, is symmetrical in tension and compression performance, is convenient to assemble, and is easy to disassemble and maintain.
Owner:SOUTHEAST UNIV

Prestress-free self-resetting and energy consumption inhaul cable support

The invention discloses a prestress-free self-resetting and energy consumption inhaul cable support. The prestress-free self-resetting and energy consumption inhaul cable support comprises a resettingmechanism, an energy consumption mechanism, a force-limited energy consumption mechanism, a high-strength steel cable and a sleeve; the resetting mechanism comprises a sliding end plate, a spring anda connecting rod; one end of the spring and the inner wall of the sleeve are connected and fixed, the other end of the spring is connected with the sliding end plate, one end of the connecting rod isanchored with the center of the sliding end plate, and the other end of the connecting rod penetrates through the fixed end of the spring; the energy consumption mechanism comprises a rotating shaft,rotating wheels, friction plates, chains and a cross connecting piece, wherein the rotating shaft and the sleeve are fixed, the friction plates are arranged on the two sides of the rotating wheels, the two chains are connected with the two rotating wheels correspondingly and connected through the two sides of the cross connecting piece, and the other two sides of the cross connecting piece are connected with the connecting rod and the high-strength steel cable correspondingly; and the force-limited energy consumption mechanism is a low-carbon steel connecting plate arranged inside the cross connecting piece, the low-carbon steel connecting plate and the cross connecting piece are fixed in a clamped connection mode, and the high-strength steel cable penetrates into the cross connecting piece to be anchored with the low-carbon steel connecting plate. The prestress-free self-resetting and energy consumption inhaul cable can achieve the self-resetting function without applying prestress.
Owner:YANGZHOU UNIV
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