135results about How to "Reduced seismic response" patented technology

The invention relates to a variable rigidity shock insulation integral intelligent support seat and belongs to the technical field of building structure shock absorption. The variable rigidity shock insulation integral intelligent support seat is characterized by comprising an upper connecting plate (1), a lower connecting plate (4), a magnetic conduction steel plate (2), a magnetorheological elastic body (3), an excitation coil (5), a magnetic conduction iron core (6), a polymer matrix composite permanent magnet material (7), a lead core (8), a conducting wire passage (9), an upper connecting screw bolt hole (10), a lower connecting screw bolt hole (11) and a driving power supply (12), wherein the a magnetorheological elastic body (3) and the magnetic conduction steel plate (2) are in a circular ring shape or a square ring shape, the excitation coil (5) and the magnetic conduction iron core (6) are arranged inside a support seat, and the polymer matrix composite permanent magnet material (7) provides a bias magnetic field for a closed magnetic circuit. The variable rigidity shock insulation integral intelligent support seat has the effects and benefits that the shock insulation and the variable rigidity are integrated, the structure is simple, the anti-interference performance is high, the two-way rigidity regulation can be realized, different horizontal rigidities can be provided for the structure according to different quake waves, and the destroy of earthquake disasters on building structures and bridge structures is effectively reduced.

The invention relates to a scissor-type deformation amplifying device for amplifying the energy consumption effect of a damper. The device is arranged in a framework composed of a left structural column, a right structural column, an upper beam and a lower beam; the device comprises a damper, a first support, a second support, a third support, a fourth support, a cover plate and an instability prevention plate, wherein the upper end of the cover plate is welded below the first support and the second support, the middle part of the cover plate is hinged with two ends of the damper through movable shafts, the lower end of the cover plate is welded together with the upper end of the instability prevention plate, and the lower end of the instability prevention plate is welded together with the third support and the fourth support. Compared with the prior art, the scissor-type deformation amplifying device has the advantages that the displacement of the damper can be amplified to more than 2 times of the inter-story displacement, the energy consumption of the damper can be increased, and the additional damping ratio of the structure under the actions of wind load and earthquake can be increased; in addition, the out-of-plane stability of the device, caused under the action of rare occurrence earthquake, is avoided by using a construction measure, and the safety of the structure under the action of the rare occurrence earthquake is ensured.

The invention relates to a tensile mechanism for stack rubber shock-insulating support seats, which is characterized in that stack rubber shock-insulating support seats are arranged between an upper structure and a lower structure, an upper reaction arm and a corresponding lower reaction arm are also arranged between the upper structure and the lower structure, the top end of the upper reaction arm is fixedly connected with the upper structure, and the bottom end of the lower reaction arm is fixedly connected with the lower structure; the bottom end of the other stack rubber shock-insulating support seat is connected with a cross arm of the bottom of the upper reaction arm, and the top end of the other stack rubber shock-insulating support seat is connected with a cross arm at the top of the lower reaction arm; the upper reaction arm, the lower reaction arm and the other stack rubber shock-insulating support seat form a reaction stack rubber shock-insulating support seat set. The invention has the advantages of simple structure and easy design and manufacture. The tensile mechanism can improve the tensile capability of shock-insulating layers of buildings, reduces the vertical displacement of shock-insulating layers, lowers earthquake response of the upper structure, and can be applied and popularized to large and wide structures.

The invention discloses a friction damper for ancient timber structure tenon-mortise joints, comprising a first steel plate portion (1) connected with a column, a second steel plate portion (2) connected with a beam, an inter-plate friction lining (3), a tightening bolt and washer (4), a first hoop (5) for connecting the first steel plate portion (1) with the column, a second hoop (6) for connecting the steel plate portion (2) and the beam, and a bolt hole (10). After assembly, the first steel plate portion (1) and second steel plate portion 92) connected with the beam and column can rotate relative to each other, coefficients of friction between all contact faces are equal, and a certain precompression is applied to a tightening bolt to control frictional amplitude. By making use the feature of a tenon-mortise joint dissipating energy by friction, the damper enables improved the ability of the tenon-mortise joint to dissipate energy and reduced secondary damage to an original structure and is small in size, easy to mount, maintain and replace and especially suitable for wide application in ancient timber structures.

A high energy consumption complex magnetic change damper, it can be applied to the vibration control the structure of civil engineering, and it is high energy consumption complex damper and can apply to change damping force. There is lead damper working cylinder (3) connected with both side of the magnetic damper working cylinder (1) in this device. There is magnetic variant (10) on both side of magnetic damper working cylinder. The middle part of the piston connecting rod which is also the big diameter part locates in the working cylinder of magnetic change damper, on the circle of big diameter part is the electricity magnetic solenoid (12). There is lead (6) in the inside of the lead damper working cylinder. The left side of the piston connecting rod (4) passed through the lead damper working cylinder connects with the jointer (1). The right side of it passed through the lead damper working cylinder stretches freely to the small cylinder which is on the right side of lead damper working cylinder. The piston connecting rod which is in the working cylinder of lead damper has salience individually (5). The working cylinder of lead damper on the right side connects with the jointer (1).

The invention relates to a damper with vibration energy dissipated through a soft steel surface internal yield deformation mechanism. The damper is used for energy dissipation and vibration reduction of a house building. An assembly type soft steel damper optimized through an equal-stress line comprises a soft steel energy dissipation piece, an anti-buckling clamping plate, L-shaped connecting plates, anchoring steel plates, a polyfluortetraethylene plate, pre-pressing fastening bolts, friction type high-strength connecting bolts, a limiting bolt, embedded anchoring steel bars and flexible filling materials. The assembly type soft steel damper optimized through the equal-stress line can serve as a dividing element of a building to be installed in a structure and does not bear a vertical load; when the assembly type soft steel damper bears a wind load or an earthquake load, the elastic-plastic hysteretic behavior generated when the soft steel energy dissipation piece deforms dissipates the energy input by the wind load or the earthquake load, and thus main components of the structure are protected; the soft steel energy dissipation piece is optimized through the equal-stress line, so that accumulated plastic deformation of the energy dissipation piece is greatly reduced, and the low cycle fatigue performance of the energy dissipation piece is enhanced.

The invention discloses a friction-lasso composite energy-consumption type assembly style steel beam column system capable of vibrating multi-levelly. The composite energy-consumption type assembly style steel beam column system can be prefabricated and assembled quickly on the spot; the occupied space is small. In the case of many earthquakes or wind vibrations, a limiting type friction energy-consumption device in the system can locally strengthen a plastic hinge area of a steel beam, the energy of the structure is dissipated through the friction and a small-titled trans-lasso energy-consumption device provides anti-lateral stiffness for the structure; when rare earthquakes occur, the limiting type friction energy-consumption device locally strengthen the plastic hinge area and limit sliding at the same moment. The small-titled trans-lasso energy-consumption device in the system makes a damper fully consume energy by amplifying the horizontal displacement. The system achieves multi-level control energy consumption and the energy consumption mechanism is clear, and has strong energy consumption capacity; the system can reduce the main injury and damage of the steel structure, and can be applied to steel structure buildings where the installed position of the energy-consumption device is limited and the requirement to the using space is high.

The invention relates to a roll shaft type metal shock-insulating supporting seat which is used for base shock insulation in house buildings. The roll shaft type metal shock-insulating supporting seat comprises an upper connection plate, a roll shaft, a roll shaft frame, a middle end plate, an L-shaped pull-resisting connection plate, a pretightening force base plate, a lower connection plate, friction type high-strength bolts and high-strength pull-resisting bolts. The roll shaft type metal shock-insulating supporting seat can be used as a base shock-insulating element to be applied to low-rise building structures, high-rise building structures and super high-rise building structures. When the earthquake action is too large, and the shock-insulating supporting seat is enabled to bear pull force, the L-shaped pull-resisting connection plate and the high-strength pull-resisting bolts play roles in pull resistance. Meanwhile, polyfluotetraethylene plates with extra-low friction coefficient slide between each other, and the roll shaft type metal shock-insulating supporting seat still can play the shock-insulating role when the roll shaft type metal shock-insulating supporting seat is pulled.

The invention discloses a fabricated steel structure containing a replaceable beam end rotating energy dissipation hinge and a small inclined-span lariat. The fabricated steel structure comprises fabricated steel beams, fabricated steel columns, dampers, joint plates, bolt pins, lug plates, lower connecting rods, upper connecting rods, ladder type haunched beams, bolts, end plates, front and rear cover plates, rotating plates, annular grooves, shearing blocks, shearing keys, rotating shafts, flange notches and web rib strips. A plastic-hinge region is locally weakened through the beam end rotating energy dissipation hinge of the fabricated steel structure; not only is the design concept of strong columns and weak beams reflected, but also the energy of the structure is dissipated through shearing deformation; while providing resist lateral stiffness for the structure, a small inclined-span lariat energy dissipation device conducts full energy dissipation of the dampers by enlarging horizontal displacement; and the fabricated steel structure is definite in energy dissipation mechanism and has strong energy dissipation capacity under the moving action of an earthquake, main damage and destroy of the steel structure can be alleviated, and the structure is easy to replace after the earthquake or the damage.

The invention discloses an assembly type concrete column partially and externally wrapped by H-shaped steel and energy dissipation steel plate shear wall structure. The shear wall structure comprises frame columns, transverse beams and a shear wall. Each frame column comprises H-shaped steel, a plurality of transverse pull bars fixed to flange plates on the two sides of the H-shaped steel in the length direction of the H-shaped steel, concrete filled up into an accommodating cavity formed by webs of the H-shaped steel and the flange plates, side plates welded to the beam-column joints and attachment plates welded to the flange plates of the H-shaped steel. Each transverse beam comprises an H-shaped steel plate, restraint pull bars fixed to flange plates on the two sides of the H-shaped steel plate in the length direction of the H-shaped steel plate and end plates fixed to the tail ends of the H-shaped steel plate. A steel plate is adopted as the shear wall. The two ends of the shear wall are fixedly connected with the attachment plates through clamping plates. The seismic performance and deformability of the frame shear wall can be effectively improved, the self-weight of the structure can be effectively lowered, seismic response can be reduced, the foundation cost is cut, and the shear wall structure is particularly suitable for reinforcement and reconstruction of existing buildings.

The invention provides an LNG liquid storage tank shock insulation layer which is adaptive to high pile foundation shock insulation on the lower portion of an LND liquid storage tank where cold gas needs to be removed by dispersing in a ventilation mode. The LNG liquid storage tank shock insulation layer comprises a plurality of reaction walls, a plurality of sliding supports, a plurality of lamination rubber supports and a plurality of sticking dampers. The sliding supports are fixedly connected with the lower bottom face of a bottom plate of a tank body of the liquid storage tank and the top face of a pile foundation respectively. The lamination rubber supports are fixedly connected with the lower bottom face of the bottom plate of the tank body and the top faces of the reaction walls respectively. The two ends of each sticking damper are hinged to the lower surface of the bottom plate of the tank body and the stand face of the corresponding reaction wall through ball hinged supports respectively. The LNG liquid storage tank shock insulation layer can be well adaptive to horizontal displacement and vertical vibration of the liquid storage tank caused by an earthquake, the earthquake response of the tank body and the pulse pressure, the convection effect and the waggling wave height of storage liquid can be greatly lowered, accordingly, the influence on the final shock insulation effect from changing of liquid storage amount in the liquid storage tank can be lowered, and a future earthquake with the uncertain earthquake magnitude can be well resisted.

The invention discloses a parallel type acceleration inert energy dissipation device. The parallel type acceleration inert energy dissipation device comprises connecting lug rings, a connecting rod, an outer cylinder, a rotary inner cylinder, spiral coils, permanent magnets, a rotating screw nut, a ball screw, an externally added mass, an internally added mass and the like. The concept of a two-node mass unit is proposed; the parallel type accelerate inert energy dissipation device is designed and applied to the engineering structure fields, such as buildings and bridges, and is an energy dissipation and seismic mitigation energy dissipation device with a new energy consumption principle which is disclosed for the first time. The existing mass unit model can be regarded as a rigid body; only the rigid body displaces, and relatively displacement inside the unit is not generated; the two-node mass unit is allowed to displace relatively in the unit but is restrained; external force of the unit can be expressed as the product of a mass and the vector difference of accelerations of two nodes, namely F=m(a2-a1). The two-node mass unit is mainly proposed for distinguishing an inertia mass two-node unit model and the existing rigid body mass unit; the compact parallel type acceleration inert energy dissipation device is provided in a mode of connecting two units in parallel by combining an eddy current energy dissipation principle.

The invention discloses an energy dissipation body structure of an elevated single-column station. The energy dissipation body structure comprises energy dissipation pier studs, a bottom layer anti-buckling supporting frame, in-axillary additional anti-buckling supporting cantilever transfer girders and a two-layer shearing coupling beam eccentric supporting frame which are all used for providingadditional rigidity when the earthquake magnitude is smaller than or equal to the preset earthquake magnitude and enter a yield state from an elastic state to plastically deform so as to consume partof input energy of an earthquake independently or in freedom cooperation with one another when the earthquake magnitude is larger than the preset earthquake magnitude. The energy dissipation body structure is suitable for the elevated single-column station; for the same type of irregular structure, some energy dissipation sub-structure in the energy dissipation body structure can also be adopted in the similar anti-seismic weak link, and therefore the anti-seismic performance and after-disaster restorability of the energy dissipation body structure are improved, and the energy dissipation bodystructure has good popularization prospects.

The invention discloses an assembly type seismic insulation house structure. The assembly type seismic insulation house structure comprises prefabrication columns, prefabrication beams, seismic insulation supports and a foundation; the seismic insulation supports are arranged between the prefabrication columns on the bottom layer and the foundation; the upper ends of the seismic insulation supports are connected with the prefabrication columns on the bottom layer; and the lower ends of the seismic insulation supports are connected with the foundation. By the assembly type seismic insulation house structure, the seismic performance of an assembly house can be effectively improved; and the assembly type seismic insulation house structure is definite and reasonable in stress, and high in quality and construction speed.

The invention discloses a high-friction antivibration support and a preparation method of the high-friction antivibration support, belonging to the technical field of bridge supports. The high-friction antivibration support has the main technical characteristics that the high-friction antivibration support comprises a lower base plate, a middle base plate and an upper base plate, wherein a low-friction coefficient plane friction pair is arranged between the upper base plate and the middle base plate, a low-friction coefficient spherical friction pair is arranged between the middle base plate and the lower base plate, a bottom plate is arranged below the lower base plate, a high-friction coefficient plane friction pair is arranged between the lower base plate and the bottom plate, and a laminated rubber block is arranged between the upper base plate and the bottom plate. According to the high-friction antivibration support, the high-friction coefficient plane friction pair is mainly used for dissipating earthquake capability in the earthquake. When horizontal displacement is generated between the upper base plate and the bottom plate, the laminated rubber block generates shear deformation. Horizontal restoring force is provided through the laminated rubber block, lateral bearing stiffness of a series system of bridge piers and the support is smaller than that of bridge piers, so that the effects of prolonging the period and reducing the earthquake response can be achieved.

A two-way vibration absorption and isolation support suitable for a cable-stayed bridge and a suspension bridge is used for solving the problem that the anti-seismic effect is poor. The two-way vibration absorption and isolation support is composed of a vertical vibration absorption mechanism, a one-way sliding mechanism and a horizontal vibration absorption mechanism, all of which are sequentially arranged from top to bottom. The vertical vibration absorption mechanism comprises a first flat board, a second flat board and four sets of disc spring assemblies arranged between the two flat boards, first C-shaped soft steel I is arranged on the periphery of the first flat board and on the periphery of the second flat board, and a pre-locking sleeve and a first shearing force pin are arranged between the first board and the second board. The one-way sliding mechanism comprises a first sliding board and a second sliding board. The horizontal vibration absorption mechanism comprises a bottom board and second C-shaped soft steel II. The support is transformed on the basis of a one-way movable spherical steel support, the shearing force pin and a horizontal C-shaped soft steel damping component are additionally arranged, disc spring components and a vertical C-shaped soft steel damper are connected in series, and the requirement for the structural static force design and the requirements for transverse bridge direction and vertical vibration absorption energy consumption of the cable-stayed bridge and the suspension bridge are met at the same time.

The invention discloses a standard unit assembled shock isolating and damping structure system which comprises a multi-layer prefabricated shear wall unit and a multi-layer prefabricated framework unit; the multi-layer prefabricated shear wall unit is jointly formed by a same layer of vertical wall pieces of a shear wall and floors; the floors are located at lower ends of wall pieces of the shear wall; the multi-layer prefabricated shear wall unit comprises a U-shaped shear wall unit and an L-shaped shear wall unit; the multi-layer prefabricated framework unit is jointly formed by a same layer of framework columns, framework beams and floors; the framework beams are located at column bottoms of the framework columns; the floors are located on the framework beams; and the multi-layer prefabricated framework unit comprises a U-shaped framework unit, a double reversed T-shaped framework unit, an L-shaped framework unit and a reversed T-shaped framework unit. The standard unit assembled shock isolating and damping structure system has the advantages of being excellent in integrity and high in assembly rate compared with the traditional assembled structure, simultaneously introducing a shock isolating and damping technology in a standard unit assembled structure, further improving the performance of shock resistance and being usable in high-rise and super high-rise structures.

The invention discloses a seesaw type amplification type energy dissipation extending arm capable of preventing out-of-plane instability. The extending arm comprises an extending arm truss, an outer frame column, a seesaw type amplification device, a viscous fluid damper, a viscoelastic damper and out-of-plane instability preventing connecting steel plates. The seesaw type amplification device is hinged to the outer frame column through a left hinge point, and the seesaw type amplification device is hinged to the extending arm truss through a right hinge point; the seesaw type amplification device is respectively hinged with one end of the viscous fluid damper through the upper hinge point and the lower hinge point, and the other end of the viscous fluid damper is hinged with the extending arm truss; and the out-of-plane instability preventing connecting steel plates are fixed to the upper end and the lower end of the outer frame column and fixedly connected with the viscoelastic damper, and the viscoelastic damper is fixedly connected with a pin shaft of the upper hinge point or the lower hinge point. The energy dissipation extending arm is high in feasibility, the key technical problem of an existing energy dissipation extending arm with an amplifying device is solved, and the energy dissipation and shock absorption effects and the capacity of coordinating deformation of an inner cylinder and an outer frame are superior to those of an existing technical scheme.

The invention relates to the field of piers, in particular to a fabricated replaceable combined pier after an earthquake. The bridge pier comprises a lower bridge pier structure and an upper bridge pier structure which are sequentially arranged from bottom to top, and the lower bridge pier structure is detachably connected to the lower end of the upper bridge pier structure. During actual use of the pier, the upper portion of the pier is connected with the bridge body, and the lower portion of the pier is fixed to the ground. When an earthquake occurs, the damaged position of the bridge pier is mainly concentrated on the lower portion of the bridge pier. Therefore, the bridge pier is designed into the upper bridge pier structure located on the upper portion of the bridge pier and the lowerbridge pier structure located on the lower portion of the bridge pier, and detachable connection is formed between the upper bridge pier structure and the lower bridge pier structure. When the lowerbridge pier structure is damaged, only the lower bridge pier structure needs to be replaced and the upper bridge pier structure needs to be reserved during maintenance, and maintenance difficulty andmaintenance cost are reduced. And the upper pier structure is reserved during maintenance, so that the main beam connected with the upper pier structure cannot be damaged due to maintenance, and the safety of maintenance personnel can be guaranteed.

The invention provides a swivel bridge with a vibration reducing and isolating function. Pile foundations, piers and a bridge body are included. An upper bearing platform and a lower bearing platformare arranged between each pile foundation and the corresponding pier, wherein the center of the upper bearing platform and the center of the lower bearing platform are connected through a spherical hinge, the part between the upper bearing platform and the lower bearing platform is provided with a plurality of vibration reducing structure pieces, the multiple vibration reducing structure pieces are located on the outer side of the spherical hinge and arranged at equal intervals in the circumferential direction of the spherical hinge, a plurality of supporting legs are arranged at the bottom ofthe upper bearing platform in the circumferential direction of the upper bearing platform, and the bottoms of the supporting legs are detachably connected with the lower bearing platform through rubber vibration isolating supports. According to the swivel bridge, traditional sealing compound concrete construction is eliminated, the rubber vibration isolating supports are additionally arranged below traditional swivel bridge supporting legs, equivalently, the vibration isolating layers are formed between the bridge structure and the lower bearing platforms, and when the great earthquake happens, a large amount of earthquake energy can be offset through the rubber vibration isolating supports, meanwhile, the vibration reducing structure pieces are additionally arranged between the upper bearing platforms and the lower bearing platforms, accordingly, a large amount of earthquake energy entering the structure is consumed, accordingly, earthquake response of the whole bridge structure is greatly reduced, and the shock resistance of the structure is greatly improved.

The invention relates to a seismic substation support post equipment connecting device capable of adjusting an installation position. The seismic substation support post equipment connecting device is used for connecting electric equipment (1) and a support post (4), and comprises an upper metal plate (5), a lower metal plate (6) and at least four damping bolts (7), wherein the bottom ends of the damping bolts (7) are fixed to the lower metal plate (6); and the upper metal plate (5) passes through damping bolt mounting holes a (501) formed in the upper metal plate, and movably sleeves the damping bolts (7). When the seismic substation support post equipment connecting device is used, firstly, the lower metal plate (6) is connected to the top end of the support post (4); secondly, the upper metal plate (5) is connected with an electrical equipment (1) body; and finally the installation position of the electrical equipment (1) body is adjusted by adjusting the lengths of the damping bolts (7) between the upper metal plate (5) and the lower metal plate (6). Compared with the prior art, the installation accuracy of the equipment can be improved; seismic response of the equipment is reduced; and the expensive electrical equipment is protected.

The invention discloses a top shock insulation module building structure with the self-adaptive shock insulation floor number. The building structure comprises a core barrel structure, and a lower portion module group is arranged on the periphery of the core barrel structure. The building structure comprises the concrete core barrel structure, and the lower portion module group is arranged on the periphery of the core barrel structure. Each layer of modules of the lower portion module group is connected with the core barrel structure, and the lower portion module group and the core barrel structure are of the same height. A secondary top module group is arranged at the tops of the lower portion module group and the core barrel structure. A top module group is arranged on the secondary top module group. A plurality of secondary top shock insulation supporting seats are arranged between the secondary top module group, and the lower portion module group and the core barrel structure, and a plurality of top shock insulation supporting seats are arranged between the secondary top module group and the top module group. According to the top shock insulation module building structure the self-adaptive shock insulation floor number, by utilizing the top layer shock insulation technology, the overall earthquake response of a module building-core barrel system is reduced, and core barrel material consumption is reduced; and by means of the feature that module buildings are convenient to assemble and disassemble, multi-section shock insulation floors are convenient and flexible to array, so that the construction working procedure of the shock insulation structure is simplified, and the construction speed is improved.

The invention discloses a prefabricated composite energy-dissipated steel beam and column structure with multi-stage damping and secondary amplification of displacement. The prefabricated composite energy-dissipated steel beam and column structure comprises a prefabricated steel beam, a prefabricated steel column, energy dissipation walls, notches, door and window holes, an upper connecting plate,a lower connecting plate, a vertical type moving displacement support, a displacement amplification rod, a L-shaped fixed support, a U-shaped sliding rod, lug plates, a gear rotating shaft, bolt pins, bolts, front and rear cover plates, fan-shaped notches, column type bearing blocks, limiting rotating plates, an annular groove, shear-resistant keys, shearing blocks, an outer circular ring, low yield point steel and an inner limiting ring. The prefabricated composite energy-dissipated steel beam and column structure is clear in energy dissipation mechanism, realizes multistage control energy dissipation and gives full play to the functions of each energy dissipation part at different stages through shear deformation of the shearing blocks and the yield energy dissipation of the low yield point steel. Furthermore, the horizontal displacement between layers of a structure is subjected to secondary amplification, the efficiency of energy dissipation is improved, the damage and failure ofa main body of a steel structure can be effectively reduced, and replacement is convenient after the earthquake or after the damage.