The present invention discloses a rubber composition, a processing method thereof, and an aging resistant rubber product using the rubber composition. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A100 parts, and an EPM and an EPDM with a content represented as B, in which 0<B100 parts; and the essential components comprise 1.5-10 parts of a crosslinking agent, 30-200 parts of a reinforcing filler, and 5-250 parts of a plasticizer. The rubber composition provided by present invention has good processability and can be used for producing rubber products with high aging resistance and compression set resistance.

Layered support alternately comprising elastomeric layers and reinforcing layers, wherein an elastomeric layer comprises an elastically compressible elastomeric block (1) with a top surface (2), a bottom surface (3) and a bulging surface (4), wherein the bulging surface (4) bulges out elastically when the elastomeric block (1) is compressed between its top surface (2) and its bottom surface (3) such that the height (A) of the elastomeric block (1) amounts to a compressed height (B), wherein a first reinforcing layer comprises a rigid top plate (6) which abuts against the top surface (2) of the elastomeric block (1) and a second reinforcing layer comprises a rigid bottom plate (7) which abuts against the bottom surface (3) of the elastomeric block (1), wherein the top plate (6) and/or the bottom plate (7) are/is provided with a raised edge (5) extending at least partly opposite the bulging surface (4), wherein the bulging surface (4) bulges out elastically and abuts against this raised edge (5) when the elastomeric block (1) is compressed between the top surface (2) and the bottom surface (3) and the height (A) is decreased to a minimum height (D).

Layered support alternately comprising elastomeric layers and reinforcing layers, wherein an elastomeric layer comprises an elastically compressible elastomeric block (1) with a top surface (2), a bottom surface (3) and a bulging surface (4), wherein the bulging surface (4) bulges out elastically when the elastomeric block (1) is compressed between its top surface (2) and its bottom surface (3) such that the height (A) of the elastomeric block (1) amounts to a compressed height (B), wherein a first reinforcing layer comprises a rigid top plate (6) which abuts against the top surface (2) of the elastomeric block (1) and a second reinforcing layer comprises a rigid bottom plate (7) which abuts against the bottom surface (3) of the elastomeric block (1), wherein the top plate (6) and/or the bottom plate (7) are/is provided with a raised edge (5) extending at least partly opposite the bulging surface (4), wherein the bulging surface (4) bulges out elastically and abuts against this raised edge (5) when the elastomeric block (1) is compressed between the top surface (2) and the bottom surface (3) and the height (A) is decreased to a minimum height (D).

A high-damping rubber isolation bearing, an intelligent bearing and a bearing monitoring system are disclosed. The high-damping rubber isolation bearing comprises a top bearing plate, a bottom bearing plate, a high-damping rubber bearing body and a base plate, wherein at least one pressure sensing unit is arranged between the top bearing plate and the base plate, or between the bottom bearing plate and the base plate. The intelligent bearing includes a data acquisition unit, a data output unit and the high-damping rubber isolation bearing. The data acquisition unit transmits the bearing pressure measured by the at least one pressure sensing unit to the data output unit. The bearing monitoring system includes a data acquisition unit, a data output unit, a monitoring center and the high-damping rubber isolation bearing.

A method for improving the seismic performance of bridges by utilizing the beam body and an energy dissipation and seismic mitigation bridge bearing, which can effectively eliminate the harmful vibration of the bridge pier in the inherent frequency band, thus reducing the stress of the pier body and improving the seismic performance of the bridge pier without introducing external additional mass and looking for an installation space on the pier. The method includes the following steps: obtain the natural frequency fi, the equivalent modal mass Mi and the modal stiffness Ki of the pier in the longitudinal or transverse direction by numerical modal analysis or experimental modal test; determine the mass mi of the beam body; calculate the connection stiffness ki and the connection damping ci between the beam body and the pier; select the bearing system with above connection stiffness ki and the connection damping ci.

Disclosed is a friction damper that has a unique load-displacement hysteresis characteristic such that, when the frictional coefficient between members that generate friction is smaller than the slope of an inclined surface, the friction damper is always returned to the original position thereof in a case where an external force is removed or remains at a level that does not exceed a threshold value. The V-groove friction damper includes: a V-groove member including a concave V-shaped groove; a V-shaped frictional contact member including a V-shaped frictional contact portion; a guide member configured to guide a left/right movement of the V-groove member; and an elastic compression unit installed on the guide member, and configured to elastically compress the V-shaped frictional contact member toward the V-groove member.

A seismic isolation bearing for a bridge includes rubber plates, steel plates and a laminated body; a hollow portion provided inside the laminated body in a hermetically closed manner; and a lead plug filled densely in the hollow portion. The lead plug has a pair of rectangular faces extending in a bridge axis orthogonal direction and opposed to each other in a bridge axis direction and a pair of rectangular faces extending in the bridge axis direction and opposed to each other in the bridge axis orthogonal direction.

Disclosed is a friction damper that has a unique load-displacement hysteresis characteristic such that, when the frictional coefficient between members that generate friction is smaller than the slope of an inclined surface, the friction damper is always returned to the original position thereof in a case where an external force is removed or remains at a level that does not exceed a threshold value. The V-groove friction damper includes: a V-groove member including a concave V-shaped groove; a V-shaped frictional contact member including a V-shaped frictional contact portion; a guide member configured to guide a left/right movement of the V-groove member; and an elastic compression unit installed on the guide member, and configured to elastically compress the V-shaped frictional contact member toward the V-groove member.

Seismic protection materials are derived from assemblages of unit cells, where each of the cells has a core, one or more shells disposed about the core, and rigid plates bounding the shells. The cores limit relative vertical movement between the plates, and the shell(s) limit relative lateral motion between the plates. Uncompressed cores are preferably substantially spherical or cylindrical, and can be solid or hollow. Unit cells can be aligned in same or different directions, both within a given layer of cells, and in different layers of cells. Assemblages can have any suitable overall shape and size, depending upon application, and for example can support objects ranging from table top equipment to large buildings and bridges.

A structural bearing is provided having at least one sliding element made of a sliding material that contains at least one polymeric plastic, wherein the siding material has a melting point temperature of more than 210 C. and a modulus of elasticity in tension according to DIN ISO 527-2 of less than 1800 MPa.