55results about How to "Realize self-resetting function" patented technology

The invention discloses a replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier, and belongs to the field of structural engineering earthquake resistance and reduction. The replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier comprises a prestressing steel bar concrete column, a longitudinal prestressing tendon, common stirrups, a rubber layer, reinforcing stirrups, transverse prestressing tendons, anchorage devices and a foundation. The transverse prestressing tendons of the bridge pier provide elastic restoring force, meanwhile, the rubber layer dissipates energy of the earthquake under the action of the earthquake, the self-resetting energy dissipation function of the bridge pier under the action of normal loads and the earthquake can be achieved, and finally the energy dissipation and earthquake disaster reduction functions of the whole bridge pier are achieved. The replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier has the advantages of being capable of conducting self-resetting, being replaceable, reducing the earthquake disaster, dissipating the energy and the like.

The invention relates to a wheel leg bounce movable robot, wherein it uses four-wheel body, with front and back swinging wheel legs and bounce structure. The invention combines wheel structure and leg structure, to change motion mode via different conditions. Via the back swinging wheel leg, when the robot is turnover, it can return by itself. The bottom bounce structure can fly over the obstacle; the table with CCD camera is mounted in the detecting table which can lift, to expand the view sight.

The invention discloses a six-bar bouncing combined-type wheel-leg mobile robot, which comprises a wheel-type moving mechanism, a bouncing mechanism, a front and rear swing arm mechanism and a holder mechanism. A six-bar rhombic nonlinear tension spring bouncing and locking mechanism is used, the bouncing height of the mobile robot is increased, the mechanism is prevented from bouncing in advanceunder the dual effects of oscillation in the spring and a non-rigid ground surface, and the requirement on a lock release mechanism is reduced. The front and rear swing arm mechanism adopts a structure of two front swing wheel legs and a single rear swing wheel leg. Since the swing arm shafts of the front and rear swing arm mechanism are not coaxial with wheels, the limitations to arm length are fewer, and the ability of crossing over ditches of the mobile robot is greatly enhanced. Besides, by adopting the design of the front and rear swing arm mechanism, the occupied space is few, and enough installation spaces are reserved for subsequent upgrade needs. An auto-resetting function and an obstacle leaping function can be realized. A charge coupled device (CCD) observation table is integrated with sensors for postures, positions, directions and the like and is installed in a holder which can be lifted up and lowered down. Under field natural environments, the environmental adaptabilityand the ability of crossing over obstacles are very high.

The invention relates to an energy-dissipation self-resetting bridge pier column structure, which belongs to the field of earthquake resistance and shock absorption of structural engineering. The energy-dissipation self-resetting bridge pier column structure comprises a reinforcement concrete column, a stay cable, a damping energy dissipation device, a foundation, a longitudinal bar, a hoop bar, a curved reinforcing steel bar, a rubber layer, a stay cable anchor tool, an anchor rod and an anchor rod anchor tool, wherein the damping energy dissipation device comprises a spring, a liquid viscous damper and a gear. The damping energy dissipation device is cable-stayed to the top end of the reinforcement concrete column through the stay cable, the self-resetting function of a pier column is realized through the spring in the damping energy dissipation device, and the energy dissipation of the pier column in the reciprocating movement in the earthquake can be realized through the liquid viscous damper in the damping energy dissipation device. In addition, the energy dissipation function under the effect of the earthquake can be realized through the rubber layer between the reinforcement concrete column and the foundation, so that the self-resetting energy dissipation function of the bridge pier column system is realized, and the energy-dissipation shock absorption of the bridge can be realized.

The invention relates to a self-resetting swing reinforced concrete column based on a shape memory alloy. The self-resetting swing reinforced concrete column comprises a concrete foundation (2), a prefabricated reinforced concrete column body (1) arranged on the concrete foundation (2), and super-elastic shape memory alloy screw rods (3) distributed around the concrete foundation (2) and the prefabricated reinforced concrete column body (1) and connecting the concrete foundation (2) with the prefabricated reinforced concrete column body (1), wherein a foundation top face steel plate (5) and a column bottom steel plate (4) are pre-embedded in the contact faces of the concrete foundation (2) and the prefabricated reinforced concrete column body (1) correspondingly, and a shear resistant element (7) is further arranged between the foundation top face steel plate (5) and the column bottom steel plate (4). Compared with the prior art, the self-resetting swing reinforced concrete column is simple in structure and flexible in design; the reinforced concrete column adopts prefabricating and assembling modes, so that construction is convenient; and it can be guaranteed that the using function of the reinforced concrete column is not interrupted after an earthquake through structural self-resetting capacity, so that significant repairing and reinforcing costs after the earthquake in a traditional reinforced concrete structure are effectively avoided.

The invention discloses a swing self-resetting damping system for a middle column of an underground station and a construction method of the swing self-resetting damping system. The swing self-resetting damping system is constituted by a top plate, a bottom plate, the prefabricated middle column, a pre-buried steel part and an energy dissipation steel plate; the traditional connection mode of fixed connection of the middle column, the top plate and the bottom plate is changed into the mode that the middle column, the top plate and the bottom plate are subjected to structure-contact-type hingedconnection and connected into a whole through unbonded prestressed steel strands, structure connection joints are connected in a hinged mode instead of a fixed mode, and thus the middle column becomes a controllable swing damping component; meanwhile, structural self-resetting function can be achieved under the effect of the upper structure load and elastic restoring force of the unbonded prestressed steel strands; the energy dissipation steel plate achieves an energy dissipation damping effect, stress is evenly distributed in the plates in the mode of preforming holes, multiple areas of theenergy dissipation steel plate enter into a plastic state advantageously, and the energy dissipation effect is improved; and protruded hemispherical embedded joints at the top and the bottom of the middle column can effectively achieve the effect of transmitting shearing force, column end sliding can be limited, and the unbonded prestressed steel strands can also be prevented from being subjectedto shear failure.

The invention discloses a reinforced concrete frame column with a resetting function. The reinforced concrete frame column comprises a concrete column and a base. The concrete column and the base areindependently poured. The base is the base of a cup rabbet. The lower end of the concrete column is arranged in the cup rabbet of the base. Prestressed steel bars penetrate through the column top of the concrete column to the column feet and are connected with the base through anchorage devices in an anchoring mode. The concrete column and the base are connected into one part. Elastic pads are arranged between the contact faces between the column feet in the cup rabbet of the base and the base in a filling mode. The arranged three sets of defense lines can act jointly under action of an earthquake, the structure consumes seismic action in a swinging mode, excessive deformation is not generated, concrete of column feet is not severely damaged, important components of the structure are not damaged or only slightly damaged, and therefore the building structure does not collapse and is not damaged, and can be in use continuously after simple repairing.

The invention belongs to the technical field of civil engineering fabricated structures, and discloses a prefabricated prestressed concrete frame joint with amplified corner multi-stage energy consumption. The prefabricated prestressed concrete frame joint with the amplified corner multi-stage energy consumption comprises a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, an amplified corner type joint shear damper, a fixing plate, high-strength bolts, a beam end sliding device, an energy consumption baffle, fixing screws, a prestressed steel strand reservedpore channel and an unbounded prestressed steel strand, wherein the amplified corner type joint shear damper is fixed to the column by the fixing plate and the high-strength bolts, the energy consumption baffle and the fixing screws are arranged on the beam end sliding device, and the unbounded prestressed steel strand is arranged in the prestressed steel strand reserved pore channel. According tothe prefabricated prestressed concrete frame joint with the amplified corner multi-stage energy consumption, effective energy consumption can be carried out under the action of strong / typhoon and earthquake with different strengths, the stability and energy consumption capacity of the joint under high-intensity earthquake are guaranteed, so that body member damage is reduced, post-earthquake residual deformation is eliminated, and the good self-reset function is guaranteed.

The invention discloses a truss type replaceable energy dissipation coupling beam with buckling restrained braces. The truss type replaceable energy dissipation coupling beam comprises a truss type coupling beam body, coupling beam end components and a pre-embedded connecting steel plate; the truss type coupling beam body comprises a square steel tube upper chord member, a square steel tube lower chord member, hinged connecting pieces and the buckling restrained braces; the hinge connecting pieces are fixedly connected to the two ends of the square steel tube upper chord and the square steel tube lower chord, and the two buckling restrained braces are connected with the hinge connecting pieces through pins, so that the two buckling restrained braces form diagonal web members in the truss type coupling beam, are in a cross shape and are not in contact; and the pre-embedded connecting steel plate is arranged in a wall body, the coupling beam end components are welded at the two ends of the square steel tube upper chord member and the square steel tube lower chord member, and the truss type coupling beam body and the pre-embedded connecting steel plate can be hinged through the coupling beam end components. According to the truss type replaceable energy dissipation coupling beam, shear deformation of a common coupling beam is converted into axial deformation of the buckling restrained braces, so that the buckling restrained braces serve as a first anti-seismic defensive line, and after the buckling restrained braces are damaged, the square steel tube upper chord and the square steel tube lower chord form a new coupling beam serving as a second defensive line.

The invention relates to a wheel leg bounce movable robot, wherein it uses four-wheel body, with front and back swinging wheel legs and bounce structure. The invention combines wheel structure and leg structure, to change motion mode via different conditions. Via the back swinging wheel leg, when the robot is turnover, it can return by itself. The bottom bounce structure can fly over the obstacle; the table with CCD camera is mounted in the detecting table which can lift, to expand the view sight.

The invention provides a self-resetting energy-dissipation anti-seismic support hanger inclined strut, and belongs to the field of anti-seismic support hangers. The self-resetting energy-dissipation anti-seismic support hanger inclined strut comprises an inner sleeve and reset energy dissipation assemblies, wherein the reset energy dissipation assemblies are arranged at the two ends of the inner sleeve in a mirror image mode; each reset energy dissipation assembly comprises an outer sleeve, a spring, a spring baffle plate, limiting bolts and wear-resisting sliding plates, wherein one end of the spring is connected with the inner side of the outer sleeve through the spring baffle plate, the other end of the spring is connected with the inner sleeve, and through long holes are machined in the two sides of the sleeving and overlapping part of the inner sleeve and the outer sleeve correspondingly; the limiting bolts are connected with the outer side wall of the outer sleeve through the long holes, the wear-resisting sliding plates are mounted on the inner side wall of the outer sleeve and the outer side wall of the inner sleeve, and the wear-resisting sliding plate of the outer sleeve and the wear-resisting sliding plate of the inner sleeve are arranged in a relative sliding mode. The problems that an existing anti-seismic support hanger is rigid in structure and prone to residual deformation after an earthquake, and consequently the anti-seismic support hanger cannot automatically reset are solved. The self-resetting energy-dissipation anti-seismic support hanger inclined strut is simple in structure, ingenious in design, convenient to disassemble and assemble and suitable for application and popularization.

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.

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.

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 self-resetting friction damper. The self-resetting friction damper comprises a steel plate composite component, a piston component, a box-type component, a bottom plate, a fastener, an elastic part and a friction plate; the steel plate composite component comprises a flange plate and a web plate; the friction plate is arranged between the side plates of the piston component and the box-type component, and fastened with the side plates of the piston component and the box-type component through a plurality of connecting parts; and the friction plate slips or deforms under the predetermined load before yielding of main structural components, energy is dissipated depending on friction, the energy dissipation ability is high, and load size and frequency have little effect on the performance of the friction plate. According to the self-resetting friction damper, the energy input into the structure by earthquakes is effectively dissipated, the function of self-resetting is achieved, and the residual deformation of the damper after the earthquakes is greatly reduced.

The invention discloses an assembly type self-reset annular metal damper comprising a steel plate combined member, a piston member, a box-shaped member, a bottom plate, a fastening piece, an elastic piece and energy dissipation members; the steel plate combined member comprises a flange plate and a web plate; a plurality of energy dissipation members are arranged, and the energy dissipation member comprises an annular inner plate, an annular outer plate, connecting base plates and connecting pieces; the annular inner plate is arranged in the annular outer plate in a sleeved mode; a plurality of connecting base plates are clamped between the side plates on the two sides of the annular inner plate and the annular outer plate respectively; a plurality of connecting pieces penetrate through the side plates of the annular inner plate, the connecting base plates and the side plates of the annular outer plate and are respectively fixedly connected with the side plates of the piston member and the box-shaped member; and the designed yield displacement of the annular inner plate is smaller than the designed yield displacement of the annular outer plate. The damper provided by the invention has the function of staged yield energy dissipation, and the energy dissipation is good; and meanwhile, the members of the damper can be disassembled and replaced timely after fatigue damage to the members happens, and the self-reset capability is high.

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 discloses a connecting mode and structure of reinforced concrete hollow pipe pier joints based on steel plate connection. The connecting structure is mainly composed of a prefabricated pier segment, a steel plate, dampers, SMA rebars and SMA bolts; the prefabricated pier segment is a high-strength concrete pipe pier, and the vertical and horizontal bearing capacity of a connecting steel plate section is not lower than the corresponding bearing capacity of a pier segment section; a plurality of dampers are annularly arranged between the top surface of a bearing platform and the bottom surface of the steel plate; under the action of earthquake, a plastic hinge area is formed at the bottom of the pier, an upper connecting steep plate and a lower connecting steel plate can be opened and closed, a local swinging mechanism is formed by utilizing self-reset of the SMA bolts, and the energy consumption capacity is achieved; the dampers are stimulated to play a role, part of the earthquake energy is absorbed, the SMA bolts and the dampers are convenient for maintenance and replacement after the earthquake, under the action of the SMA rebars, the pier structure system has the function of self reset, and the damage of the plastic hinge area of the pier after the earthquake is reduced.

The invention discloses an assembled self-resetting out-of-plane bending metal damper, which comprises a steel plate composite component, a piston component, a box type component, a bottom plate, a fastener, an elastic component, and energy consuming components. The steel plate composite component comprises a flange plate and a web; the plurality of energy consuming components comprise connectingplates and energy consuming plates; panels of the connecting plates are arranged in parallel with a side plate of the piston component and tightly connected with the side plates of the piston component and the box type component respectively through a plurality of connecting members; the plurality of energy consumption plates are fixed in parallel between the two connecting plates, the energy consumption plates are in rectangular shapes, and diamond-shaped through holes are formed in the centers; the energy consumption plates are large in yield areas and uniform in plastic distribution, and during energy consumption, various points of the energy consumption plates simultaneously enter plastic deformation. According to assembled self-resetting out-of-plane bending metal damper, deformationenergy consumption performance of the energy consuming plates can be adjusted according to different working conditions by means of disassembly and replacement; and at the same time, the damper component can be disassembled and replaced in time after fatigue damage of the component, the energy consumption effect is good, and self-resetting capability is high.

The invention discloses a self-resetting energy consumption connecting device for a fabricated shear wall. The self-resetting energy consumption connecting device comprises energy consumption connecting pieces which are symmetrically arranged at bottom corners of two ends of a prefabricated wall plate, an upper wall plate and a lower wall plate are connected into a whole through a prestress system, the energy consumption connecting pieces comprise two replaceable plates, the two replaceable plates are vertically and symmetrically arranged on the inner surface and the outer surface of the upperwall plate, a plurality of bolt holes are vertically formed in the two ends of the replaceable plates, screw rod through holes are correspondingly formed in the upper wall plate, bolt rods sequentially penetrate through the bolt holes and the screw through holes to connect the two replaceable plates and the upper wall plate together, and the bolt rods can slide up and down in the bolt holes and the bolt through holes. According to the self-resetting energy consumption connecting device, the bolt rods slide in the bolt holes, the earthquake capacity is consumed through friction force generatedby sliding of the bolt rods in the screw holes, and when the earthquake action is reduced, the building structure returns to the initial position through the prestressing force and the gravity of thewall, so that self-resetting, energy consumption and seismic mitigation of the building structure are achieved.

The invention discloses a fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure. The fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure comprises a subway station space composed of a precast top plate, a precast bottom plate, precast side walls and a precast central column, the joints of the precast side walls and the precast top plate and the joints of the precast side walls and the precast bottom plate are provided with arc-shaped rubber supporting seats enabling a whole structure to form 'hinge connection' from 'rigid connection' correspondingly, prestressed steel bars penetrating through the two edges of the arc-shaped rubber supporting seats and communicating with the precast top plate and the precast bottom plate are arranged in the left sides and the right sides of the precast side walls correspondingly, the two end tips of the prestressed steel bars are anchored and fixed through nuts, the precast central column is of an 'I-shaped' structure, the two end tips of the precast central column are connected with the middle of the precast top plate and the middle of the precast bottom plate through mortise and tenon joint structures correspondingly, through the mortise and tenon joint structures, under the action of an earthquake, the bending moment at the joint position between the central column and the station top plate and the joint position between the central column and the station bottom plate is released, and thus the damage to the station is reduced; and the central column is precast through steel cylinder concrete, the strength of the central column is greatly improved, deformation of the central column is reduced, and theearthquake resistance ability of the central column is improved.

The invention discloses an assembled self-resetting X-type metal damper, which comprises a steel plate composite component, a piston component, a box type component, a bottom plate, a fastener, an elastic component, and energy consuming components. The steel plate composite component comprises a flange plate and a web; the plurality of energy consuming components comprise connecting plates and energy consuming plates; panels of the connecting plates are arranged in parallel with a side plate of the piston component and tightly connected with the side plates of the piston component and the boxtype respectively through a plurality of connecting members; a plurality of energy consuming plates are fixed in parallel between the two connecting plates, and the energy consuming plates are X-shaped plates with broader width at both ends and narrow width in the middle, the yielding areas of the X-shaped plates are large, plasticity distribution is uniform, and during energy consumption, each point of the energy consumption plates simultaneously enters plastic deformation. According to the assembled self-resetting X-type metal damper, deformation energy consumption performance of the energyconsuming plates can be adjusted according to different working conditions by means of disassembly and replacement; and at the same time, the damper component can be disassembled and replaced in timeafter fatigue damage of the component, the energy consumption effect is good, and self-resetting capability is high.

The invention discloses a swinging self-resetting damper and a combined supporting type mounting method thereof. The swinging self-resetting damper comprises a vertical cylinder, a steel plate, a butterfly spring, a spring protection cylinder, a horizontal partition plate, a C-shaped damper, a horizontal cross beam, a high-strength pull rod and a fastener. The horizontal partition plate is arranged in the vertical cylinder, and a cover plate is arranged at the upper part of the vertical cylinder; the steel plate is arranged outside the vertical cylinder; one end of the C-shaped damper is connected with the side wall of the steel plate, and the other end of the C-shaped damper is connected with an end plate at the upper portion of the horizontal cross beam; the spring protection cylinder isfixed at the bottom of an end plate at the lower portion of the horizontal cross beam; one end of the high-strength pull rod penetrates through the horizontal partition plate and is fixedly clamped to the top of the horizontal partition plate; the other end of the high-strength pull rod penetrates through the horizontal cross beam and is arranged in the spring protection cylinder; the butterfly spring is arranged at the end, in the spring protection cylinder, of the high-strength pull rod in a sleeving mode and fixed through the fastener; and the vertical cylinder is installed at the bottom of the cross beam. The damper can achieve the energy consumption function through self-swinging, and has the self-resetting capability.

The invention discloses a damper vibration reduction system for restraining bridge vibration and an implementation method, and belongs to the technical field of structural vibration control. The system comprises a deformation displacement conversion amplification device and a damper, the two ends of the damper are connected with a bridge girder through the deformation displacement conversion amplification device, and when the bridge girder generates bending vibration, the deformation displacement conversion amplification device amplifies the corner displacement generated by the bending vibration and converts the corner displacement into horizontal displacement; a piston of the damper is driven to move by utilizing a horizontal displacement difference formed by conversion and amplification of the relative angle displacement, and the damper is reversely stretched to output damping force to act on the bridge girder so that vertical bending vibration of the bridge girder is inhibited. The invention aims to solve the problems that the damping force for restraining the vertical vibration of the main beam is not easy to apply and the restraining effect is unstable in the prior art, and the system is simple in structure, ingenious in design, easy to install and low in cost, and can increase the vertical damping of the bridge by arranging a plurality of groups of horizontally arranged damping devices on the main beam of the bridge, and thus the effect of better controlling the vertical vibration of the large-span bridge is achieved.

The invention discloses a wind turbine generator lattice type tower with enhanced recoverable and energy dissipation capacities. The tower comprises a tower main rod, a tower transverse supporting rod, a tower inclined supporting rod, a connecting end plate and at least two structural units; and each structural unit comprises two pieces of T-shaped steel, which are parallel to each other and can vertically move mutually, each piece of T-shaped steel is welded to the end of the tower transverse supporting rod, two friction outer plates which are in sliding friction with web plates of the two pieces of T-shaped steel are arranged on the two sides of the web plates in the same direction of the two pieces of T-shaped steel, and the two friction outer plates are connected with the T-shaped steel through elastic return assemblies. According to the tower, an energy dissipation effect is achieved through friction sliding between the webs of the T-shaped steel and the friction outer plates, a self-return function is achieved through the elastic return assemblies, an energy dissipation function and a recoverable function of the whole tower are enhanced through a mutual transverse dislocation mechanism of the T-shaped steel and the friction inner plates, and the anti-seismic requirements of different levels can be met.

The invention discloses an eddy current damping three-dimensional shock absorption device utilizing a bridge saddle weight, and relates to the technical field of bridge structure shock absorption control in civil engineering, the eddy current damping three-dimensional shock absorption device comprises a base plate, the center position of the upper surface of the base plate is a plane, and the base plate extends outwards through a plurality of sequentially spliced cambered surfaces from the plane; the curvature radiuses of the plurality of cambered surfaces are sequentially reduced from inside to outside, and first conductor plates are arranged on the plane and the cambered surfaces; a second conductor plate is arranged on the inner wall of the outer cylinder, a plurality of first electromagnets and universal rotating bodies are arranged at the bottom of the outer cylinder, and the universal rotating bodies make contact with the upper surface of the base plate; and the saddle weight is arranged in the outer cylinder, the top end and the bottom end of the saddle weight are fixedly connected with the top wall and the bottom wall of the outer cylinder through vertical springs correspondingly, and a plurality of second electromagnets are arranged on the outer side wall of the saddle weight at intervals. Eddy current damping vertical tuning damping and eddy current damping multi-stage frequency conversion horizontal tuning damping can be achieved.

The invention relates to a self-resetting energy-consuming steel beam capable of eliminating the frame expansion effect and a construction method thereof. The two ends of the H-shaped steel beam are wedge-shaped cutting, and a turning space is reserved on the upper part; the lower flange of the H-shaped steel beam passes through the welded wing The flange stiffener is indirectly connected to the flange of the H-shaped steel column; the shear plate is provided with a long hole so that the beam end can rotate relatively freely; The stranded wire passes through the reserved hole between the stiffener connector and the flange of the H-shaped steel column, and then prestresses the shape memory alloy stranded wire and anchors it through the anchor; the steel beam has a self-resetting function under earthquake action, and can Dissipate the energy input by the earthquake, and at the same time avoid the expansion effect of the overall frame when the beam-column joints appear openings.

The invention discloses a self-resetting viscous damper based on a combined spring, which includes a viscous damping energy-consuming device, a spring return device and a force transmission device. The force device includes an external force transmission component and an internal force transmission component; the external force transmission component includes a cylinder, the viscous damping energy dissipation device and the spring return device are installed in the cylinder, the internal force transmission component is a guide rod, and the guide rod is along the cylinder body. Arranged in the axial direction, the piston in the viscous damping energy dissipation device is fixedly connected to the guide rod. The spring return device includes a return spring and two pressure bearing plates arranged at both ends of the return spring in the axial direction. The return spring and the pressure bearing plate All are sleeved on the periphery of the guide rod, and can slide relative to the guide rod. The invention has excellent self-resetting ability and controllability, can consume energy stably under high and low frequency excitation, has overload protection characteristics, symmetrical tension and compression performance, convenient assembly, and easy disassembly and maintenance.