ADAPTIVE SYSTEM FOR SEISMIC PROTECTION OF OBJECTS Russian patent published in 2025 - IPC E04H9/02 

FIELD: construction; mining; mechanical engineering.

SUBSTANCE: invention relates to machine building, as well as construction and mining, specifically to systems and devices for active seismic protection of critical, including strategic, objects for various purposes placed in protective structures, for example, industrial reactors, platforms or metal structures with equipment and personnel (surface or buried) for data processing centres – large mass data centres, etc., against spatial impact-seismic and pulse mechanical effects of kinematic nature. Objects seismic protection adaptive system, providing for the damping devices installation in the seismoisolating layer between the base and the protected object, containing box-shaped elastomeric shock absorbers with rigid plates for contact with the object supporting surface and for attachment to the base, attached to the elastomeric shock absorber side walls ends from above and below, respectively. Antifriction coating is applied on contact surfaces of object and shock-absorbing device, or antifriction elements are installed, as well as installation of unloading supports made of rigid or slightly deformable material, which can be destructed or folded under seismic action conditions. Every elastomer damper features barrel shape with sidewalls formed by unified resilient elements, i.e. lugs, arranged in rows in parallel quasi-coaxial circle. Their profile shape features initial convexity to ensure required power characteristics. Each damping device is made as a friction-movable pendulum support with a sliding surface in the form of a gasket from a solid material with an antifriction insert in the form of a ball segment fixedly fixed on a rigid plate in its centre and with the base horizontal displacement sliding along the spherical section or segment on the object supporting surface and creating the re-centring force. Structurally and functionally, each shock absorbing device and unloading support are combined in the hybrid support-shock absorbing device, in which the lugs of the elastomeric shock absorbers are installed in the side wall without gaps and are fixed or locked in the initial position by crimping in the middle part with a given force with a ring or hoop-stopper in the form of a flexible metal band supported or held in a given position by means of stops or external protrusions in lugs, ends of the band are jointed together by retainer or pin sheared at exceeding definite or preset load caused by damper compression.

EFFECT: ensuring compactness of structures to ensure their placement in the limited working space of the seismically insulating layer and access to them in accordance with the repairability requirements, reduced labour intensiveness of maintenance and operating costs, provision of automation of restoration process of adaptive properties of the system under conditions of multiple seismic action, reduced prime cost of equipment, provision of high reliability of system operation.

2 cl, 13 dwg