31results about How to "Remarkable effect of shock absorption and isolation" patented technology

The invention belongs to the technical field of rubber and discloses an ultra-high damping rubber composite material and a preparation process of the rubber composite material. The preparation process disclosed by the invention is mainly technically characterized by comprising the following steps of: adding short fibers, carbon black, petroleum resin, a plasticizer, a vulcanizing agent, an active agent, an accelerant and an anti-aging agent in rubber; and mixing the components in an internal mixer and then vulcanizing in a flat vulcanizing machine. According to the ultra-high damping rubber composite material disclosed by the invention, a predetermined amount of short fibers, carbon black and petroleum resin are uniformly dispersed in a rubber matrix; compared with the common high-damping material, the damping coefficient of the ultra-high damping rubber composite material disclosed by the invention is increased by more than 20%; and the ultra-high damping rubber composite material disclosed by the invention has the advantages of being strong in energy consumption property and ductility and obvious in damping and shock insulating effects, effectively controlling the earthquake response of shock insulating structures, and being environment-friendly and stable in property. The stretching strength is greater under the condition with the same hardness, so that a rubber bearing prepared by the ultra-high damping rubber composite material disclosed by the invention is greater in bearing force; the whole size of the bearing is smaller than the size of the traditional high-damping rubber bearing; and the rubber bearing has the advantages of saving the use space, being convenient to construct and more excellent in resistance to fatigue performance.

The invention relates to an arc-shaped steel spring plate vibration isolation support of a friction pendulum in the field of buildings, bridges and sluices engineering. The arc-shaped steel spring plate vibration isolation support comprises an upper support plate, a column upper sliding block, a column biconvex spherical lower sliding block and a lower support plate, wherein the lower part of the upper support plate is provided with a circular sealing plate, the outer wall of the lower part of the upper support plate is connected with the upper surface of the column upper sliding block, an arc-shaped steel spring plate elastic assembly connected with the column upper sliding block is arranged between the column upper sliding block on the outer wall of the lower part of the upper support plate and the circular sealing plate, a concave spherical surface of the column upper sliding block is connected with an upper convex spherical surface of the column biconvex spherical lower sliding block, and a lower convex spherical surface of the column biconvex spherical lower sliding block is positioned in a concave spherical surface of the lower support plate. The vibration isolation support has simple structure, large vertical loading capacity, good durability and remarkable vibration reduction and isolation effects, can freely rotate in various directions, and is suitable for buildings, bridges, sluices and other structures in a strong earthquake region.

The invention provides a double-column type swinging shock-insulation bridge pier structure system and belongs to the field of bridge engineering. The structure system is mainly composed of an upper structure, a reinforced concrete bridge pier section and a steel pipe concrete bridge pier section, a bearing platform, a steel pipe concrete bolt pin, a non-binding pre-stress steel bar and the like. The steel pipe concrete bridge pier section is connected with the upper structure through the non-binding pre-stress steel bar; and with the help of an external energy consumption device and a metal annular object, the shock-insulation effect and the self-resetting capability of a bridge structure can be effectively provided. The structure system designed by the invention has a definite stress mechanism; under the condition of ensuring that the structure system has enough intensity and rigidity, the earthquake effect borne by the structure is reduced, and the effective energy consumption capability and self-resetting capability can be provided; and the problems of a traditional double-column type bridge pier structure system that a support is replaced in a life period and the system is seriously damaged and has large residual deformation after the earthquake effect can be solved.

The invention relates to a pulling-resistant friction isolation bearing for a bridge. The pulling-resistant friction isolation bearing comprises upper and lower bearing plates, upper and lower sliding bodies, a slider and a pulling-resistant housing, wherein the concave curved surface of the upper bearing plate is connected with the upper convex curved surface of the upper sliding body; a metal plate is arranged on the concave curved surface of the lower bearing plate; the concave curved surface of the lower bearing plate is connected with the lower convex curved surface of the lower sliding body; the upper sliding body is connected with the lower sliding body through the slider in the middle; the upper sliding body, the slider and the lower sliding body are arranged in the pulling-resistant housing; and the two side surfaces of the upper sliding body and the lower sliding body are connected with the inner wall of the pulling-resistant housing. The pulling-resistant friction isolation bearing adapts to deformation of the bridge under the action of a normal load, has the characteristics of rigidity and damping adaptivity, is strong in vertical pulling-resistant capability, meets the seismic performance requirements of the bridge under different fortification levels, is simpler in structure, high in vertical bearing capacity, large in horizontal displacement and good in durability and pulling resistance, and is suitable for the bridge with high seismic performance requirements.

The invention provides a self-adaptive multi-spherical face rubbing sliding vibration insulating support saddle, relating to large buildings such as building and bridge and the like, comprising an upper support saddle plate, an upper sliding disc, a movable sliding block comprising an upper and a lower spherical gap, a lower sliding disc and a lower support saddle plate; the concave spherical face of the upper support saddle plate is internally connected with the upper sliding disc; the concave spherical face of the upper sliding disc is connected with the concave spherical face of the lower sliding disc by the movable sliding block composed of the upper and the lower spherical gaps; the convex spherical face of the lower sliding disc is connected with the concave spherical face of the lower support saddle plate; the upper spherical gap of the movable sliding block is positioned in the groove of the lower spherical gap; the upper and the lower spherical gaps are respectively provided with convex spherical faces. The support saddle in the invention has self-adaptive property for automatically adjusting rigidity and damping in countable and controllable displacement range based on different spherical faces with same or different curvature radii and friction coefficients; the support has simple structure, great upright bearing force, large level displacement, good service durability and clear vibration absorbing mechanism; the support saddle is applied to the large-span bridges and other large buildings with high requirement of vibration absorbing property.

The invention relates to a long-span bridge three-sphere frictional sliding shock isolation support in the aspect of bridge engineering field. The support consists of an upper support saddle plate, a movable slide block consisting of an upper segment and a lower segment, a middle sliding disk and a lower support saddle plate and is characterized in that the concave sphere of the upper support saddle plate is connected with the concave sphere of the middle sliding disk by the movable slide block consisting of the upper segment and the lower segment; the upper segment of the middle movable slide block is arranged in the recess of the lower segment; the upper segment and the lower segment are respectively provided with a convex sphere; and the convex sphere of the middle sliding disk is connected with the concave sphere of the lower support saddle plate. Within the range of calculable and controllable displacement range, the long-span bridge three-sphere frictional sliding shock isolation support changes the self rigidity and damping characteristics by the self-adaption behavior of the three spheres; for the multifunction objective or multilevel shock, the self adaptability is beneficial to respectively optimizing given shock isolation systems. The support saddle has simple structure, big vertical bearing capacity, big horizontal displacement, high durability and specific shock isolation mechanism, thereby being suitable for long-span bridges having high demand on shock resistant performance.

The invention relates to a compound rubber ball shock absorption support for a bridge. The compound rubber ball shock absorption support for the bridge is composed of an internal compound rubber ball, a high-strength rope net and an external rubber ball shell, wherein the internal compound rubber ball is wrapped by the high-strength rope net which has the isotropy constraint ability, the internal compound rubber ball, the high-strength rope net and the external rubber ball shell are arranged in a mutually sleeved mode, and the external rubber ball shell tightly wraps the combination of the internal compound rubber ball and the high-strength rope net through rubber vulcanization. Horizontal deformation of the internal compound rubber ball after the internal compound rubber ball is pressed is effectively constrained due to the structural composition of the internal compound rubber ball and existence of the high-strength rope net for wrapping, and the vertical bearing capacity of the compound rubber ball shock absorption support is greatly improved. When the compound rubber ball shock absorption support for the bridge is normally used, the compound rubber ball shock absorption support for the bridge can play a role of a fixing support. The compound rubber ball shock absorption support for the bridge can consume acting energy produced by a small earthquake to the bridge through deformation when the small earthquake happens. The compound rubber ball shock absorption support for the bridge can slide and rotate under the action of a strong earthquake, and the requirement of earthquake force of a lower structure is effectively reduced. The compound rubber ball shock absorption support for the bridge is simple in structure, convenient to manufacture and high in performance cost ratio, and has high economic benefit and social benefit.

The invention provides friction pendulum supporting bases and a bridge damping and shock insulation system. Each friction pendulum supporting base comprises an upper base plate assembly, a lower baseplate assembly and a spherical crown lining plate. The spherical crown lining plate is slidingly arranged between the upper base plate assembly and the lower base plate assembly, the lower base plateassembly comprises a baseplate, a lower supporting base plate and a locking assembly, and the lower supporting base plate is slidingly arranged between the baseplate and the spherical crown lining plate; the locking assembly is arranged between the lower supporting base plate and the baseplate, and the locking assembly locks the sliding positions of the baseplate and the lower supporting base plate when the earthquake displacement is larger than the temperature displacement; the sliding friction coefficient of the baseplate and the lower supporting base plate is smaller than that of the spherical crown lining plate and the upper base plate assembly and smaller than that of the spherical crown lining plate and the lower base plate assembly. The bridge damping and shock insulation system comprises a fixed supporting base, a transverse supporting base and the two friction pendulum supporting bases, one friction pendulum supporting base is a vertical supporting base, and the other frictionpendulum supporting base is a multidirectional supporting base. The friction pendulum supporting bases and the bridge damping and shock insulation system have the advantages of being good in dampingand shock insulation effect, high in safe reliability, good in smoothness and the like.

The invention relates to a connection mode of a pier and a bearing platform through additional mild steel dampers, and belongs to the field of bridge engineering. According to the connection mode, mainly a reinforced concrete pier section, a concrete-filled steel tube pier section and additional mild steel dampers are arranged, wherein the section of a concrete-filled steel tube is a reduced scale section, and the vertical bearing capacity of the concrete-filled steel tube section with the reduced scale section is not lower than that of the reinforced concrete section; the additional mild steel dampers are arranged between the top of the bearing platform and the bottom of the reinforced concrete section. Under the effect of earthquakes, the plasticity deformation of the pier is focused on the concrete-filled steel tube section, so that a plastic hinge release pier bottom bending moment is formed; besides, the reinforced concrete section swings around a hinge to stimulate the mild steel dampers to resist earthquake force and dissipate earthquake energy. The energy consumption characteristics of the mild steel dampers can have protective effects on the concrete-filled steel tube section, through reasonable design, the concrete-filled steel tube section can be used only with slight repair and maintenance after the earthquakes, the damage of the main structure of a bridge is small, the normal service of the bridge is not influenced, and the damaged mild steel dampers are convenient to exchange.

The invention provides a double-column swinging bridge pier structure using a TMD seismic absorption measure and relates to the technical field of bridge construction seismic mitigation and absorption. A double-column swinging bridge pier construction method using the TMD seismic absorption measure comprises a bridge pier-bearing platform swinging structure, a bridge pier-upper structure swingingstructure and the TMD seismic absorption measure in an upper structure box room. No connection measure is available between an upper structure and bridge piers and between the bridge piers and bearingplatforms. Top segments and bottom segments of the bridge piers are expanded rectangular sections; and cuboid-shaped rubber blocks are arranged at the foot parts so as to prevent swinging interfacesfrom being damaged and destroyed due to local compression and collision. Anti-shear hollow steel pipes are arranged at the tops of the bridge pier and the bearing platform to limit the sliding of thebridge pier. The TMD seismic absorption measure consists of rolling shaft supports and counterweights to realize a function of absorbing seismic energy. According to the double-column swinging bridgepier structure using the TMD seismic absorption measure, the bridge pier swings to release bending moments at the top and bottom of a pier, and plastic deformation is concentrated on the rubber blockto absorb the seismic energy by using the TMD measure; and therefore, a bridge structure realizes good anti-seismic property and post-earthquake recovery capacity.

The present invention provides a separation type mild steel shock absorber. The separation type mild steel shock absorber comprises an upper shock absorber part and a lower shock absorber part which are symmetrically arranged relatively, wherein relative end portions of the upper shock absorber part and the lower shock absorber part have force transmission segments, and a gap is left between end surfaces of the two force transmission segments; a force transmission cylinder arranged outside the force transmission segments of the upper shock absorber part and the lower shock absorber part and capable of slidably connecting the force transmission segments of the upper shock absorber part and the lower shock absorber part; and a limiting steel pin arranged in the gap so as to limit the force transmission cylinder outside the force transmission segments.

The invention provides a beam friction support, and the support comprises an upper base plate, a lower base plate and a friction sliding block arranged between the upper base plate and the lower baseplate in a sliding mode; the friction sliding block is a rubber sliding block, and the upper end face and the lower end face of the rubber sliding block are planes so that the rubber sliding block canbe matched with the upper base plate and the lower base plate to form a plane friction pair. The sliding friction coefficient a between the rubber sliding block and the lower base plate is less thanthe sliding friction coefficient b between the rubber sliding block and the upper base plate. The support has the advantages of being prevented from being damaged, good in vibration reduction effect,simple in structure and the like.

A high-energy-consumption double-curved-surface seismic mitigation and absorption support comprises an upper seatplate, a guide friction pair, a middle seatplate, a spherical friction pair, concentric-square-shaped steel dampers, a lower seatplate and a limiting device. The bottom surface of the upper seat plate is a concave spherical surface, the top surface of the lower seat plate is a concave spherical surface, the upper surface and the lower surface of the middle seat plate are convex spherical surfaces matched with the concave spherical surface, and the upper seat plate, the middle seat plate and the lower seat plate form a rotating mechanism of the support;limiting devices for limiting the upper seatplate are arranged on the four sides of the lower seatplate respectively. The singleside, the two sides or the periphery of the support are each provided with theconcentric-square-shaped steel damper, each concentric-square-shaped steel damper is in the concentric-squareshape; an opening is formed in one side of each concentric-square-shaped steel damper, a dislocation height difference exists at each opening, the lower free end of each opening is connected with the lower seatplate, and the higher free end of each opening is connected with the upper seatplate. The high-energy-consumption double-curved-surface seismic mitigation and absorption support has various advantages ofa double-curved-surface seismic mitigation and absorption support, has high energy dissipation capacity, can meet various seismic requirements during bridge construction, and is particularly suitablefor high-intensity and long-period seismic areas.

The invention discloses a shock absorption and isolation damper, a shock absorption and isolation device and a mounting method of the shock absorption and isolation device. The shock absorption and isolation damper comprises a spiral shock absorption and isolation main body rotating by a circle, the surface of the spiral shock absorption and isolation main body is a smooth cambered surface, when the shock absorption and isolation main body is stressed to deform, two thirds or more of the section is a deformation energy consumption section, and the shock absorption and isolation main body is provided with two end parts spaced up and down; the two end parts are each connected with a force transmission connecting part; the shock absorption and isolation device comprises a shock absorption and isolation support, the shock absorption and isolation support comprises an upper base plate and a lower base plate, at least one shock absorption and isolation damper is connected between the outer edge of the upper base plate and the outer edge of the lower base plate, and the two force transmission connecting parts of each shock absorption and isolation damper are connected with the upper base plate and the lower base plate through connecting pieces respectively. The shock absorption and isolation device is simple in structure and convenient to replace, is not limited by the height of the support, can achieve energy dissipation and shock absorption in any horizontal direction, can effectively prolong the structural period, provides a stable and higher damping ratio, and can achieve effective control over damping force, horizontal displacement, plastic deformation, the damping ratio and other parameters through computational analysis and tests.

The invention relates to a pulling-resistant friction isolation bearing for a bridge. The pulling-resistant friction isolation bearing comprises upper and lower bearing plates, upper and lower sliding bodies, a slider and a pulling-resistant housing, wherein the concave curved surface of the upper bearing plate is connected with the upper convex curved surface of the upper sliding body; a metal plate is arranged on the concave curved surface of the lower bearing plate; the concave curved surface of the lower bearing plate is connected with the lower convex curved surface of the lower sliding body; the upper sliding body is connected with the lower sliding body through the slider in the middle; the upper sliding body, the slider and the lower sliding body are arranged in the pulling-resistant housing; and the two side surfaces of the upper sliding body and the lower sliding body are connected with the inner wall of the pulling-resistant housing. The pulling-resistant friction isolation bearing adapts to deformation of the bridge under the action of a normal load, has the characteristics of rigidity and damping adaptivity, is strong in vertical pulling-resistant capability, meets the seismic performance requirements of the bridge under different fortification levels, is simpler in structure, high in vertical bearing capacity, large in horizontal displacement and good in durability and pulling resistance, and is suitable for the bridge with high seismic performance requirements.

The invention discloses a foundation pit prefabricated fender shock absorption pile. The foundation pit prefabricated fender shock absorption pile comprises a pile body, the upper end surface of the pile body is provided with a liquid storage pool, and the bottom of the liquid storage pool is provided with a round hole vertically penetrating through the lower end surface of the pile body. Slurry is poured into a water isolation space formed by a cover plate and the wall of the liquid storage pool, the slurry achieves the effect of filtering shock on the earth surface, and a round pipeline achieves the isolation effect on shock transmission. The invention further discloses a foundation pit retaining wall building method. The foundation pit retaining wall building method comprises the following steps that a trench is dug section by section in the position where a foundation pit support structure plans to be built; foundation pit prefabricated fender shock absorption piles are lifted to the preset position one by one, and slurry in a space between two shock absorption piles is pumped; and slurry in the liquid storage pools and round pipelines of all the foundation pit prefabricated fender shock absorption piles is pumped one by one, shock absorption slurry is poured into the water isolation spaces, and construction of the foundation pit support structure is completed. Foundation pit support is conducted through the foundation pit prefabricated fender shock absorption piles, the construction quality of the foundation pit support structure can be ensured, and an obvious shock absorption and isolation effect on the inner structure of a foundation pit is achieved.

The invention discloses a pier top embedded part, an eccentric force transmission part and a cantilever type anti-falling beam limiting device. The pier top embedded part comprises an embedded plate,a force transmission cylinder is arranged on the embedded plate, a first eccentric block is arranged in an inner cavity of the force transmission cylinder, a through hole is formed in the first eccentric block, and the axis of the through hole and the axis of the force transmission cylinder are eccentric; the eccentric force transmission part comprises a force transmission cup body and a loading ring, the bottom surface of the force transmission cup body is provided with a second eccentric block used for being inserted into the through hole in the first eccentric block, and the loading ring isinserted into an inner cavity of the force transmission cup body; the cantilever type anti-falling beam limiting device comprises a beam bottom embedded sleeve assembly, a pier top embedded part, aneccentric force transmission part connected to the pier top embedded part and a limiting tenon elastically installed between the beam bottom embedded sleeve assembly and a loading ring of the eccentric force transmission part, and the beam bottom embedded sleeve assembly is embedded in beam bottom plate concrete. The pier top embedded part is embedded in the surface of pier top concrete. The invention is simple in structural design, installation of the limiting tenon can be smoothly achieved, shock absorption, isolation and limiting effects on an earthquake can be achieved in the using process, and the beam falling prevention capacity can be improved.

The invention relates to a connection mode of a pier and a bearing platform through additional mild steel dampers, and belongs to the field of bridge engineering. According to the connection mode, mainly a reinforced concrete pier section, a concrete-filled steel tube pier section and additional mild steel dampers are arranged, wherein the section of a concrete-filled steel tube is a reduced scale section, and the vertical bearing capacity of the concrete-filled steel tube section with the reduced scale section is not lower than that of the reinforced concrete section; the additional mild steel dampers are arranged between the top of the bearing platform and the bottom of the reinforced concrete section. Under the effect of earthquakes, the plasticity deformation of the pier is focused on the concrete-filled steel tube section, so that a plastic hinge release pier bottom bending moment is formed; besides, the reinforced concrete section swings around a hinge to stimulate the mild steel dampers to resist earthquake force and dissipate earthquake energy. The energy consumption characteristics of the mild steel dampers can have protective effects on the concrete-filled steel tube section, through reasonable design, the concrete-filled steel tube section can be used only with slight repair and maintenance after the earthquakes, the damage of the main structure of a bridge is small, the normal service of the bridge is not influenced, and the damaged mild steel dampers are convenient to exchange.

The invention relates to the technical field of bridge supports, in particular to a multi-stage defense seismic mitigation and absorption support. The support comprises an upper connecting steel plate, an upper sliding cover plate, energy dissipation soft steel, shear keys and a lower connecting steel plate, the upper connecting steel plate is of a cylindrical structure and is fixed to the bottomof a bridge, a groove with a circular cross section is formed in the middle of the lower surface of the upper connecting steel plate, and the upper sliding cover plate is of a circular structure and is fixed to the top wall of the groove through the shear keys; the energy dissipation soft steel is of a strip-shaped structure, one end of the energy dissipation soft steel is fixed to the side wall of the groove, and a gap is formed between the other end of the energy dissipation soft steel and the upper sliding cover plate. The lower connecting steel plate is fixed to the top of a pier, and a lead core rubber vibration isolation support is arranged between the lower connecting steel plate and the upper sliding cover plate. The support has the advantages of being simple in structure, clear instress and the like, and multi-stage fortification and graded energy consumption under earthquakes of different intensities can be achieved.

The invention provides a double-column swinging bridge pier structure using a TMD seismic absorption measure and relates to the technical field of bridge construction seismic mitigation and absorption. A double-column swinging bridge pier construction method using the TMD seismic absorption measure comprises a bridge pier-bearing platform swinging structure, a bridge pier-upper structure swingingstructure and the TMD seismic absorption measure in an upper structure box room. No connection measure is available between an upper structure and bridge piers and between the bridge piers and bearingplatforms. Top segments and bottom segments of the bridge piers are expanded rectangular sections; and cuboid-shaped rubber blocks are arranged at the foot parts so as to prevent swinging interfacesfrom being damaged and destroyed due to local compression and collision. Anti-shear hollow steel pipes are arranged at the tops of the bridge pier and the bearing platform to limit the sliding of thebridge pier. The TMD seismic absorption measure consists of rolling shaft supports and counterweights to realize a function of absorbing seismic energy. According to the double-column swinging bridgepier structure using the TMD seismic absorption measure, the bridge pier swings to release bending moments at the top and bottom of a pier, and plastic deformation is concentrated on the rubber blockto absorb the seismic energy by using the TMD measure; and therefore, a bridge structure realizes good anti-seismic property and post-earthquake recovery capacity.

The invention discloses an energy-dissipation self-resetting double-layer rectangular hollow concrete-filled steel tube swing pier structure system, and belongs to the field of bridge engineering. Theswing pier structure system is mainly composed of main beams, supporting seats, a coping, a double-layer rectangular hollow concrete-filled steel tube pier, a bearing platform, a non-bonded prestressed fiber reinforced polymer (FRP) reinforcement with a self-resetting function and anti-buckling dog-bone-shaped metal dampers. The double-layer rectangular hollow concrete-filled steel tube pier andthe coping are cast in place to form a whole to be placed on the bearing platform, and are connected with the bearing platform through non-bonded prestressed FRP reinforcement and the anti-buckling dog-bone-shaped metal dampers so as to play the role of self-resetting and dissipate seismic energy. The designed swing pier structure system is clear in mechanical mechanism, on the premise of ensuringsufficient strength and stiffness of the structure system, the seismic action borne by the structure can be reduced by local lift-off of the pier on the bearing platform, the effective energy dissipation capacity and self-resetting capacity are provided, and the problems of serious damage and large residual deformation of a traditional cast-in-situ pier after an earthquake action can be solved.

The invention relates to a variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing. A seismic absorption period of a friction pendulum bearing adopted in the field of bridge construction is determined once the spherical radius is determined, but the fixed period results in poorer adaptive capacity of a structure. The variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing is provided with a bispherical lining plate, wherein an upper bearing plate and a base are arranged at the upper part and the lower part of the bispherical lining plate; slide block components are arranged on the lower surface of the bispherical lining plate; a limitation plate fixed on the base and guide bar components are arranged at the periphery of the upper bearing plate; and two curved surface friction pairs are formed among the upper bearing plate, the bispherical lining plate and a variable-curvature bottom plate. According to the variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing, resonance of the traditional friction pendulum bearing is overcome by adopting a variable-curvature surface; reliable contact between relational structures of the bearing with different curvature radiuses, and the friction surface contact adaptivity are achieved by the slide block components; local stress concentration is avoided; seismic mitigation and absorption function separation on the normal working condition and the earthquake working condition is achieved; the stress is stable and reliable; beam falling is avoided; and multistage protective seismic mitigation and absorption effects are obvious.

The invention provides a double-column type swinging shock-insulation bridge pier structure system and belongs to the field of bridge engineering. The structure system is mainly composed of an upper structure, a reinforced concrete bridge pier section and a steel pipe concrete bridge pier section, a bearing platform, a steel pipe concrete bolt pin, a non-binding pre-stress steel bar and the like. The steel pipe concrete bridge pier section is connected with the upper structure through the non-binding pre-stress steel bar; and with the help of an external energy consumption device and a metal annular object, the shock-insulation effect and the self-resetting capability of a bridge structure can be effectively provided. The structure system designed by the invention has a definite stress mechanism; under the condition of ensuring that the structure system has enough intensity and rigidity, the earthquake effect borne by the structure is reduced, and the effective energy consumption capability and self-resetting capability can be provided; and the problems of a traditional double-column type bridge pier structure system that a support is replaced in a life period and the system is seriously damaged and has large residual deformation after the earthquake effect can be solved.

The invention relates to a compound rubber ball shock absorption support for a bridge. The compound rubber ball shock absorption support for the bridge is composed of an internal compound rubber ball, a high-strength rope net and an external rubber ball shell, wherein the internal compound rubber ball is wrapped by the high-strength rope net which has the isotropy constraint ability, the internal compound rubber ball, the high-strength rope net and the external rubber ball shell are arranged in a mutually sleeved mode, and the external rubber ball shell tightly wraps the combination of the internal compound rubber ball and the high-strength rope net through rubber vulcanization. Horizontal deformation of the internal compound rubber ball after the internal compound rubber ball is pressed is effectively constrained due to the structural composition of the internal compound rubber ball and existence of the high-strength rope net for wrapping, and the vertical bearing capacity of the compound rubber ball shock absorption support is greatly improved. When the compound rubber ball shock absorption support for the bridge is normally used, the compound rubber ball shock absorption support for the bridge can play a role of a fixing support. The compound rubber ball shock absorption support for the bridge can consume acting energy produced by a small earthquake to the bridge through deformation when the small earthquake happens. The compound rubber ball shock absorption support for the bridge can slide and rotate under the action of a strong earthquake, and the requirement of earthquake force of a lower structure is effectively reduced. The compound rubber ball shock absorption support for the bridge is simple in structure, convenient to manufacture and high in performance cost ratio, and has high economic benefit and social benefit.

The invention relates to a double-layer elevated structure for a high-intensity area under a limited clearance. The double-layer elevated structure comprises a frame structure fixedly connected with the upper end face of a lower-layer stand column through a support; the support is a shock absorption and isolation support; the frame structure comprises an upper-layer main beam, an upper-layer stand column and a lower-layer main beam; the lower end face of the upper-layer main beam is fixedly connected with the upper end face of the upper-layer stand column, and the lower end face of the upper-layer stand column is fixedly connected with the upper end face of the lower-layer main beam. The invention further relates to a construction method of the double-layer elevated structure. According to the shock absorption and isolation anti-seismic method adopted by the double-layer elevated structure, the shock absorption and isolation effect is obvious, the overall height of the structure is low, and the anti-seismic problem of the double-layer elevated structure of the high-intensity area under the limited clearance is ingeniously solved.

The invention provides a self-adaptive multi-spherical face rubbing sliding vibration insulating support saddle, relating to large buildings such as building and bridge and the like, comprising an upper support saddle plate, an upper sliding disc, a movable sliding block comprising an upper and a lower spherical gap, a lower sliding disc and a lower support saddle plate; the concave spherical face of the upper support saddle plate is internally connected with the upper sliding disc; the concave spherical face of the upper sliding disc is connected with the concave spherical face of the lower sliding disc by the movable sliding block composed of the upper and the lower spherical gaps; the convex spherical face of the lower sliding disc is connected with the concave spherical face of the lower support saddle plate; the upper spherical gap of the movable sliding block is positioned in the groove of the lower spherical gap; the upper and the lower spherical gaps are respectively provided with convex spherical faces. The support saddle in the invention has self-adaptive property for automatically adjusting rigidity and damping in countable and controllable displacement range based on different spherical faces with same or different curvature radii and friction coefficients; the support has simple structure, great upright bearing force, large level displacement, good service durability and clear vibration absorbing mechanism; the support saddle is applied to the large-span bridges and other large buildings with high requirement of vibration absorbing property.

A seismic isolation bearing with non-linear dampers comprises a bearing body, wherein the bearing body includes an upper bearing plate (1), a middle lining board (2), a lower bearing plate (4), and a functional board (6) sandwiched between the middle lining board (2) and the lower bearing plate (4), and further comprises a seismic isolation device consisting of stopping blocks (5) and non-linear dampers (3). Several stopping blocks (5) are evenly fixed on the surface of the lower bearing plate (4) outside of the middle lining board (2) by energy dissipating bolts, and a plurality of non-linear dampers (3) are evenly set surrounding the outer periphery of the middle lining board (2) with one end thereof fixed to the middle lining board (2) and the other end fixed to the lower bearing plate (4).

The invention belongs to the technical field of rubber and discloses an ultra-high damping rubber composite material and a preparation process of the rubber composite material. The preparation process disclosed by the invention is mainly technically characterized by comprising the following steps of: adding short fibers, carbon black, petroleum resin, a plasticizer, a vulcanizing agent, an active agent, an accelerant and an anti-aging agent in rubber; and mixing the components in an internal mixer and then vulcanizing in a flat vulcanizing machine. According to the ultra-high damping rubber composite material disclosed by the invention, a predetermined amount of short fibers, carbon black and petroleum resin are uniformly dispersed in a rubber matrix; compared with the common high-damping material, the damping coefficient of the ultra-high damping rubber composite material disclosed by the invention is increased by more than 20%; and the ultra-high damping rubber composite material disclosed by the invention has the advantages of being strong in energy consumption property and ductility and obvious in damping and shock insulating effects, effectively controlling the earthquake response of shock insulating structures, and being environment-friendly and stable in property. The stretching strength is greater under the condition with the same hardness, so that a rubber bearing prepared by the ultra-high damping rubber composite material disclosed by the invention is greater in bearing force; the whole size of the bearing is smaller than the size of the traditional high-damping rubber bearing; and the rubber bearing has the advantages of saving the use space, being convenient to construct and more excellent in resistance to fatigue performance.