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

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 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 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 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 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 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 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 theupper 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 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.