56results about How to "Consumes seismic energy" patented technology

The invention discloses a beam-column anti-seismic connecting joint and a connecting method thereof, and the problem of brittle fracture is solved. The beam-column anti-seismic connecting joint is used for connecting of a steel column and an I-shaped steel beam, and a first space and a second space are arranged on connecting parts of the two ends of the steel beam; a laminated component is arranged in the first space, and a grouting groove is formed in the second space; a transition connecting piece is fixed on the steel column, and an inserting groove of the transition connecting piece is a U-shaped groove structure with upward opening and is composed of a bottom plate and side plates on the two sides; a connecting part is connected with the inserting groove in an inserted mode, and high strength long bolts are fixed on the two side walls of the inserting groove; and high strength long bolts pass through a strip hole I in a steel sheet, a strip hole II in a beam web and a pin hole in a friction slice. By means of grouting, rigid connecting is formed between the steel beam and the transition connecting piece. Under the action of an strong earthquake, concrete blocks are damaged and crushed, then flexible connecting is formed between the steel beam and the transition connecting piece through the laminated component and the concrete blocks.

The double spherical shock absorbing and insulating bearer for railroad bridge includes an upper bearing plate, a middle bearing plate and a lower bearing plate superposed successively and sliding teflon plates set between bearing plates. The lower bearing plate has fixed shearing force member. The middle bearing plate has an upper spherical surface in small curvature radium for connection to the upper bearing plate through spherical spin friction, and a lower spherical surface in great curvature radium for connection to the lower bearing plate through spherical sliding friction. In addition, there are also a top basin on the upper bearing plate and a sliding teflon plate in between. the present invention has obvious shock absorbing and insulating effect, easy control and regulation, capacity of ensuring structural safety and lowering engineering cost, and other features.

Disclosed are a swinging buckling restrained brace and frame structure system and a construction method thereof. The swinging buckling restrained brace and frame structure system comprises a buckling restrained brace, a frame, a foundation, fixing ends and embedded ends, the buckling restrained brace is mounted on the frame, and the frame is fixed onto the foundation by the aid of the fixing ends and the embedded ends. The swinging buckling restrained brace and frame structure system and the construction method are mainly characterized in that restraint on the fixing ends of columns of the frame with the brace and restraint on the foundation are released, and the embedded ends of an energy consuming element are vertically disposed. The system is high in structural rigidity, and seldom moves when in earthquake, energy consuming and damping effects are good, and the buckling restrained brace which is used as a replaceable energy dissipation unit can be conveniently replaced after earthquake.

The invention discloses a transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and an arranging method. The bridge anti-seismic stop block structure comprises a steel corbel, a stop block body and a steel frame, wherein the steel corbel is fixed to the side face of the top of the portion, nearby a movable support, of a bridge pier, the stop block body is fixed to the steel corbel, and the steel frame is fixed to the bottom of a bridge body. The anti-seismic stop block structure is arranged nearby each movable support, the collision positions are disperse, multiple anti-seismic stop block structures are arranged, therefore, the seismic force acting on each stop block structure can be effectively decreased, and then local damage of the stop block structures can be reduced; each stop block body comprises an energy dissipation type low-yield-point steel plate. According to the bridge anti-seismic stop block structure, large displacement between beam bodies and the bridge piers can be effectively limited, and damage of the movable supports and expansion joints can be reduced; under the action of a violent seism, not only can local damage of the collision areas and damage transmitted to the bottoms of the bridge piers be effectively reduced, but also part of seismic energy can be dissipated by means of plastic deformation of the energy dissipation type low-yield-point steel plates arranged in the stop block bodies.

A fall prevention beam buffer device comprises a buffer assembly with an elastic buffer function, and a chain and is characterized in that one end of the buffer assembly is connected with one end of the chain; the other end of the buffer assembly is connected with a beam body fixedly; and the other end of the chain is fixedly connected with a pier column close to the beam body, the end, fixedly connected to the beam body, of the buffer assembly and the end, fixedly connected to the pier column, of the chain are not at the same height, and thus the fall prevention beam buffer device is inclined between the beam body and the pier column. Through the fall prevention beam buffer device, longitudinal and transverse fall prevention beams can be achieved, collision between beam bodies can be buffered, the beam body collision damage rate is lowered, jumping of the beam bodies in the gravity direction is reduced, and separation of an upper support part and a lower support part between the beam bodies and pier columns is prevented. The invention further provides a fall prevention beam buffer device method, and a fall prevention beam buffer system in an air rail.

The invention provides a shearing type parallel mild steel quake-proof damper for building structures, relating to the technical field of building engineering and used for improving the quake-proof performance of the building structures, lowering the repair cost of postquake restoration and ensuring normal use of the building structures after an earthquake. The damper comprises two rectangular mild steel plates with low yield point, two lateral stiffened steel rib plates and two gusset plates, wherein the surfaces of the two mild steel plates with low yield point are parallel to each other; the four edges of the two mild steel plates with low yield point are flush; the two lateral stiffened steel rib plates are respectively welded and fixed at the left and right sides of the two mild steel plates with low yield point; the two gusset plates are respectively welded and fixed at the upper and lower sides of the two mild steel plates with low yield point; and the surfaces of the two mild steel plates with low yield point are vertical to the surfaces of the lateral stiffened steel rib plates and the surfaces of the gusset plates. The damper provided by the invention can effectively consume the seismic energy, has low cost and is simultenously convenient for repair and change.

The invention belongs to the technical field of bridge supports and discloses a pulling pressing beam-falling-resisting seismic-isolation-and-reduction support. According to the technical scheme, the structure of the support comprises an upper base plate, a bottom plate and a sliding part clamped between the upper base plate and the bottom plate. The bottom plate is composed of a concave ball / a cylindrical surface body. The sliding part is composed of a rotating body and a hyperbolic ball / a cylindrical surface body. A periphery circle concave-convex structure is placed between the upper portion of the rotating body and the upper base plate and forms a sliding anti-pulling structure with a plane sliding pair. The lower portion of the rotating body is of a curve ball / cylindrical surface structure. The hyperbolic ball / the cylindrical surface body is clamped between the rotating body and the bottom plate and forms a corresponding curve surface sliding pair through the rotating body and the bottom plate. An anti-pulling sliding pair mechanism is arranged between the rotating body and the bottom face of the bottom plate. When the support of the structure is under the effect of vertical pulling force, collision of parts of the support is avoided. During an earthquake, a seismic-isolation-and-reduction function is achieved, and a bridge, the support and a pier are kept together all the time.

The invention discloses a connecting structure for an assembly type building pile foundation and a bearing platform. The connecting structure comprises the bearing platform, the pile foundation and a plurality of sleeves; the bearing platform is internally provided with anchoring steel bars; the pile foundation is internally provided with pre-buried steel bars, a pile foundation end plate is arranged on the pile foundation, and a plurality of through holes are formed in the pile foundation end plate; and each sleeve comprises a first sleeve body, a second sleeve body and a third sleeve body, the first sleeve bodies are vertically arranged in the through holes, inner threads which are in threaded connection with the anchoring steel bars are arranged on the inner walls of the second sleeve bodies, the second sleeve bodies are coaxially arranged in the first sleeve bodies in a sleeved mode, inner threads are arranged on the inner walls of the third sleeve bodies, the outer portions of the third sleeve bodies are divided into first portions and second portions which are distributed in a stepped mode, the first portions are located above the second portions, the outer diameters of the first portions are smaller than the outer diameters of the second portions, and the first portions extend into the first sleeve bodies and are in threaded connection with the inner walls of the first sleeve bodies. According to the connecting structure for the assembly type building pile foundation and the bearing platform, the anchoring steel bars and the pre-buried steel bars are connected through the sleeves, the butt joint strength and reliability are good, and a certain anti-seismic effect is achieved.

The invention discloses a segmented prestress self-resetting damage concentration prefabricated swing shear wall which comprises a plurality of wall bodies arranged from bottom to top, wherein damage concentration blocks are arranged at the corners of the wall bodies. Each wall body is internally provided with unbonded prestressed steel bars, wherein one end of each unbonded prestressed steel bar is anchored in the wall body, and the other end of the unbonded prestressed steel bar stretches out of the upper portion of the wall body. Each wall body is provided with reserved prestressed steel bar ducts. Anchorage devices are arranged at the upper ends of the reserved prestressed steel bar ducts. According to every two adjacent wall bodies, the reserved prestressed steel bar ducts located in the upper wall body correspond to the unbonded prestressed steel bars arranged in the lower wall body, and after the unbonded prestressed steel bars penetrate through the corresponding reserved prestressed steel bar ducts, the upper ends of the unbonded prestressed steel bars are anchored through the anchorage devices. The prestress is applied in a segmented mode, the construction difficulty is lowered, the redundancy rate is increased, the situation that the overall structure is damaged due to prestress failure in a certain position is avoided, the structure rigidity can be reduced through swinging, lifting, falling and impacting of the wall bodies in an earthquake, the structural cycle is shortened, and the earthquake action is reduced; and meanwhile, the self-resetting function is achieved.

The invention discloses a single-rod square steel tube support with a casing and a manufacturing method thereof. The single-rod square steel tube support comprises horizontal axial symmetrical strip-shaped square steel tube supports, wherein a flared end plate is embedded into the two end parts of the square steel tube support respectively; the large opening end of each flared end plate is formed outside the square steel tube support; a reinforcing plate is fixed on the upper surface and the lower surface of the small opening end of each flared end plate respectively; and the outer surface of the square steel tube support is sleeved with a coaxial casing. By adopting the single-rod square steel tube support, the problems of low compression rigidity, small compression yield bearing force and early rupture deformation under the reciprocating pull pressure action existing in an ordinary single-rod steel support are solved, and the deformation capability of the support is ensured.

The invention relates to the field of bridge engineering, and particularly discloses a multi-section type energy dissipation horizontal swing pier which comprises a support and a pier body. The pier body comprises a supporting pier and a plurality of subsection piers, the supporting pier and the subsection piers are hollow structures, and the lowermost subsection pier is fixedly connected with thesupporting pier. A circular ladder groove is formed in the upper end of each subsection pier, a cylindrical limiting cylinder is arranged at the lower end of each subsection pier, the diameter of each limiting cylinder is smaller than the inner diameter of the corresponding circular ladder groove, the subsection piers are overlapped up and down, and the uppermost subsection pier can support the support. The invention aims to solve the technical problem that an existing ductile design causes more serious damage to the bridge under the action of a strong earthquake.

The invention provides a method for assembling a steel structure framework and a composite lightweight floor slab module, and belongs to the technical field of assembling construction engineering. The method is based on a floor datum plane formed by a steel structure framework. The method comprises the following process steps: according to a construction drawing, manufacturing floor slab modules used for splicing; making the upper end face of a bearing beam in the steel structure framework form a floor datum plane; checking connecting components prefabricated on bearing steel columns and bearing beams in the steel structure framework, connecting positions, and tolerance of the connecting components with technical assembling holes of the floor slab module; by matched technical holes and connecting assemblies, respectively positioning a first floor slab sub-module and a tail floor slab sub-module in the floor slab module in slab hanging positions of corresponding bearing steel columns in the steel structure framework, to realize heavy load mount; laying an intermediate floor slab sub-module in space between the first floor slab sub-module and the tail floor slab sub-module; performing waterproofness treatment and decorative filling and repairing on junctions of the floor slab module and the bearing steel columns, junctions of the floor slab module and the bearing beam, and junctions of adjacent floor slab modules, and the technical holes.

The invention relates to the technical field of structural engineering, in particular to a steel structure connecting node. The steel structure connecting node comprises a steel column and a steel beam, wherein the steel beam is connected with the steel column through a node base and a node top cover, and shear bolts are arranged between the steel beam and the node top cover; damping cylinders arearranged in the node base and are movably hinged to the steel beam through connecting arms, and disc springs are arranged between every two adjacent damping cylinders as well as between the damping cylinders and the node base; and the steel beam shakes from left to right in an earthquake, the damping cylinders are driven to move up and down, and the disc springs are stretched or compressed in theup-and-down moving process of the damping cylinders, so that the disc springs can be matched with the damping cylinders so as to consume earthquake energy. According to the steel structure connectingnode, the shear bolts, the damping cylinders and the disc springs are matched with one another, so that triple energy consumption measures are formed, the earthquake resistance capacity of the node is greatly increased while the connecting strength of the node is guaranteed, and the safety and reliability of a building are guaranteed.

The invention discloses a prefabricated steel plate shear wall system with two anti-seismic defense lines, and relates to the field of structural engineering. According to the technical scheme, two double-limb spliced cap type cold-formed thin-walled section steel columns or two welding closed cold-formed thin-walled section steel columns with extending ends are connected with two cold-formed thin-walled section steel beams to form a rectangular frame, an embedded steel plate is fixed in the rectangular frame through a plurality of self-tapping screws, and X-shaped cable-stayed steel belt setsor prefabricated mortar plates with decoration bars are arranged on the two sides of the rectangular frame. The prefabricated steel plate shear wall system with the two anti-seismic defense lines ishigh lateral stiffness, and the two anti-seismic defense lines are provided, so that the system has extremely high earthquake energy dissipation performance and excellent anti-seismic performance; andthe self-tapping screws or bolts are adopted for connection, prefabricated construction is convenient and fast, and the application prospect in the fields of multi-layer steel structure building earthquake resistance and industrial prefabricated structures is wide.

The invention discloses a friction energy dissipation supporting structure, an assembly type supporting frame system and a construction method. The friction energy dissipation supporting structure comprises an energy dissipation gear assembly, and a first supporting rod, a second supporting rod and two third supporting rods that are connected with the energy dissipation gear assembly. According to the friction energy dissipation supporting structure, a first gear and two second gears that are arranged in a meshed mode are used for forming the energy dissipation gear assembly, the first supporting rod is connected with one second gear, the second supporting rod is connected with the other second gear, the two third supporting rods are connected with the first gear, and an upper beam and a lower beam of a frame form a rigid body; four connecting hinges are used as connecting media of the first supporting rod, the second supporting rod and the third supporting rods and the apical corners of the frame and are hinged to the ends of the first supporting rod, the second supporting rod and the third supporting rods correspondingly, and the two third supporting rods are arranged in the frame in an opposite angle mode; and therefore, when an earthquake occurs, the two third supporting rods convert interlayer earthquake force into tension and pressure to be transmitted, and friction can also be generated between the first gear and the second gears so as to consume earthquake energy.

The invention discloses a large-displacement rotating shaft energy consumption self-resetting bridge vibration isolation support, and belongs to the technical field of constructional engineering. The large-displacement rotating shaft energy consumption self-resetting bridge vibration isolation support comprises a sliding plate and a lower connecting plate, a sliding rail is arranged on the lower surface of the sliding plate, an upper connecting plate is arranged below the sliding rail, the upper connecting plate and the lower connecting plate are connected through at least two rotating shafts, an energy consumption device is arranged between every two adjacent rotating shafts. A rotary connector is arranged above the rotating shaft, and a cantilever plate is arranged above the rotary connector; a sliding rail inner core is fixed to the cantilever plate and is in sliding connection with the sliding rail. The limiting plate rotates to extrude the plate spring, the plate spring generates plastic deformation to dissipate energy, the plate spring is simple in structure, low in manufacturing cost and easy to maintain, large-displacement deformation can be converted into local rotation deformation, vibration energy is distributed to multiple buffering components, and the self-resetting plate spring energy dissipation device has a self-resetting function, can be used for a long time and is high in stability and firmness.

The invention provides a fabricated beam-column connecting joint and a construction method. The fabricated beam-column connecting joint comprises a prefabricated column and a prefabricated beam, wherein the prefabricated column is provided with two sets of first connecting pieces extending in the length direction of the prefabricated column, the first connecting pieces comprise first connecting pieces and second connecting pieces, the first connecting pieces and the second connecting pieces are vertically connected to form L-shaped grooves, the two sets of L-shaped grooves are arranged back to back, two sets of second connecting pieces extending along the length direction of the prefabricated beam are arranged on the prefabricated beam, each second connecting piece comprises a third connecting piece and two fourth connecting pieces, the two fourth connecting pieces are perpendicularly connected to the two ends of each third connecting piece to form open grooves, the two sets of open grooves are arranged back to back, and the open grooves are embedded in the L-shaped grooves, so that the prefabricated beam is connected with the prefabricated column. The invention further provides a fabricated beam-column construction method. The assembly process of the fabricated beam-column connecting joint is simple, The first connecting piece and the second connecting piece are connected, the contact area is large, and the connecting strength and the stress effect of the connecting joint can be effectively improved.

The invention discloses a square sleeve type self-reset metal friction damper. The square sleeve type self-reset metal friction damper comprises an outer sleeve and an inner cylinder arranged in the outer sleeve, the damper is connected with an external structure through connecting rods at the two ends, wherein the connecting rod at one end penetrates through the one end of the outer sleeve and isconnected with one end of the inner barrel, and the connecting rod at the other end is connected with the other end of the outer sleeve; and a reset spring is further arranged between the other end of the inner barrel and the other end of the outer sleeve, and a friction structure is arranged between the outer sleeve and the inner barrel. According to the square sleeve type self-reset metal friction damper, metal friction energy dissipation and SMA spring energy dissipation are achieved, damping force is increased by forming grooves in the inner barrel and forming bolt holes in the outer sleeve, and the self-reset function during the two states of being pressed and being pulled by hands is achieved; and the square sleeve type self-reset metal friction damper is simple in manufacturing, reasonable in stress, large in damping force, large in initial stiffness, large in energy dissipation capacity, low in price, stable in vibration reduction and energy dissipation and good in durability.

The invention provides a bent steel truss coupling beam with a U-shaped damper and capable of being quickly restored after an earthquake. The bent steel truss coupling beam comprises the U-shaped damper. The bent steel truss coupling beam consumes energy by utilizing the U-shaped damper on the basis of a common steel truss coupling beam. The U-shaped damper comprises a U-shaped upper cover plate,a U-shaped lower cover plate and bolts. The bent steel truss coupling beam is simple in structure, convenient to construct and easy to disassemble. Under a small earthquake, the bent steel truss coupling beam with the U-shaped damper does not generate plastic deformation, is equivalent to the common steel truss coupling beam and provides vertical rigidity for the structure; and under a large earthquake, after the yield load of the U-shaped damper is reached, the damper generates plastic deformation, and therefore energy is consumed. Most energy in the earthquake is consumed by the U-shaped damper. According to the bent steel truss coupling beam with the U-shaped damper and capable of being quickly restored after the earthquake, under the action of the earthquake, the strength is not degraded, damage is avoided, only the U-shaped cover plates of the damper need to be checked and replaced after the earthquake, and the bent steel truss coupling beam has the advantages of being low in post-earthquake repairing cost and capable of being used in time.

The invention discloses an arc friction type damper for reinforcing a beam-column joint. The arc friction type damper for reinforcing the beam-column joint comprises at least one friction damping device, a first connection plate and a second connection plate, wherein the first connection plate and the second connection plate are arc. One end of the first connection plate and one end of the secondconnection plate are used for being fixedly connected with the corresponding beam or column correspondingly. The arc faces of the other ends of the first connection plate and the second connection plate are attached to each other to form an overlapping section. The overlapping section is provided with the friction damping device. The friction damping device comprises a plate body, a friction plateand a friction sheet. The plate body is fixedly connected with the first connection plate through a second connection piece. The plate body is fixedly connected with the friction plate through a first connection piece. The side, away from the plate body, of the friction plate is provided with a groove. The friction sheet is clamped into the groove and is in contact connection with the second connection plate. The arc friction type damper for reinforcing the beam-column joint reduces plastic deformation at the beam-column joint, the friction sheet can be conveniently replaced, operation is easy, and the arc friction type damper for reinforcing the beam-column joint is wide in application range, does not occupy too much use space and is low in cost, high in practicability and worthy of popularization.

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 provides a tuned liquid energy dissipation and seismic mitigation pier structure which comprises a hollow pier and a plurality of tuned liquid boxes. A plurality of layers of supportingtables which are arranged up and down are arranged in an inner cavity of the hollow pier; each tuning liquid box is arranged on one layer of supporting table; each tuning liquid box comprises a box body containing tuning liquid and a water baffle module arranged in the tuning liquid. Earthquake energy can be consumed from the interior of the pier, so that pier vibration is reduced, and the earthquake resistance of the pier is improved.

The invention relates to the field of anti-seismic structures, and particularly discloses an anti-seismic energy dissipater for a building structure. The anti-seismic energy dissipater comprises an upper connecting plate, a lower connecting plate, a damping inner core and an elastic energy dissipation device; the damping inner core is arranged between the two connecting plates, and a first through hole for the elastic energy dissipation device to penetrate through is formed in the damping inner core; and the elastic energy dissipation device comprises a plurality of anti-seismic pieces, the anti-seismic pieces are arranged in a circular array mode to form annular units, the annular units are concentrically arranged to form concentric ring structures, the anti-seismic pieces between the adjacent annular units are arranged in a staggered mode, the concentric ring structures are vertically arranged, the anti-seismic pieces between the adjacent concentric ring structures are connected through elastic pieces, and the anti-seismic pieces can make contact with the damping inner core for friction. The anti-seismic energy dissipater aims to solve the technical problem of poor anti-seismic effect.

The bi-aluminum alloy plate assembly-type buckling-constrained support described in the present invention uses upper and lower channel steels and middle I-steel to fix the core plate on both sides of the I-steel through bolts, which can provide a larger overall bending stiffness of the support and is easier to meet Constraint ratio requirements, the support can quickly enter the plastic energy dissipation state when it is subjected to reciprocating loads, and consume seismic energy to a greater extent, and the core plate is made of aluminum alloy, which can reduce the structural weight to a certain extent. , easy to disassemble, easy to replace damaged parts after the earthquake, outstanding economic and social benefits.

The invention discloses a connecting structure for an assembly type building pile foundation and a bearing platform. The connecting structure comprises the bearing platform, the pile foundation and a plurality of sleeves; the bearing platform is internally provided with anchoring steel bars; the pile foundation is internally provided with pre-buried steel bars, a pile foundation end plate is arranged on the pile foundation, and a plurality of through holes are formed in the pile foundation end plate; and each sleeve comprises a first sleeve body, a second sleeve body and a third sleeve body, the first sleeve bodies are vertically arranged in the through holes, inner threads which are in threaded connection with the anchoring steel bars are arranged on the inner walls of the second sleeve bodies, the second sleeve bodies are coaxially arranged in the first sleeve bodies in a sleeved mode, inner threads are arranged on the inner walls of the third sleeve bodies, the outer portions of the third sleeve bodies are divided into first portions and second portions which are distributed in a stepped mode, the first portions are located above the second portions, the outer diameters of the first portions are smaller than the outer diameters of the second portions, and the first portions extend into the first sleeve bodies and are in threaded connection with the inner walls of the first sleeve bodies. According to the connecting structure for the assembly type building pile foundation and the bearing platform, the anchoring steel bars and the pre-buried steel bars are connected through the sleeves, the butt joint strength and reliability are good, and a certain anti-seismic effect is achieved.

The invention provides a seismic reduction and isolation device with the combined energy consumption function. The device comprises an upper support plate, a lower support plate, a friction sliding block and buffer units. The upper surface of the lower support plate is an inwards concave surface, the inwards concave surface is of a basin structure, the center of the inwards concave surface is a round plane, and the periphery of the round plane is a curved surface. One end of the friction sliding block is movably arranged in the center of an inwards concave surface of the lower support plate, and the other end of the friction sliding block is movably connected with the upper support plate. One end of the buffer unit extends into the lower surface of the upper support plate, and the other end of the buffer unit makes contact with the inwards concave surface of the lower support plate. According to the seismic reduction and isolation device with the combined energy consumption function, the plane joint type friction sliding block is adopted, and the phenomenon of beam rising is effectively avoided; in the swing process, the joint type friction sliding block moves relative to the lowersupport plate, sliding friction happens between a polyfluortetraethylene plate on the lower part of the joint type friction sliding block and a sliding surface of the round plane of the lower supportplate to consume seismic energy; and each buffer unit is composed of a spring, a damper, a sliding block and a steel ball, because the buffer units are adopted, the capacity of consuming seismic energy is greatly improved.