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

FIELD: construction; mining; mechanical engineering.

SUBSTANCE: invention relates to construction and mining, as well as machine building, 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 provides 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 or antifriction elements are installed on the contacting surfaces of the object and the damping device. System also provides for the installation of unloading supports made of a rigid or weakly deformable material, which can be destructed or folded under seismic action conditions. Each elastomeric shock absorber has a barrel shape with side walls formed by separated gaps unified resilient elements-lobes, which are installed in rows on a parallel quasi-coaxial pattern around or on the sides of a regular polygon or n-gon, where n is greater than or equal to three, and which profile shape has initial convexity, providing the required type of the power characteristic. Shock-absorption 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 anti-friction insert in the form of a ball segment fixedly fixed on a rigid plate in its centre and with base horizontal displacement along spherical section or segment on object bearing surface and creating force for re-centring, and each unloading support is a pantograph type structure, which levers are connected to each other and to the upper and lower supporting plates by means of axial hinges, wherein the lower support plate is rigidly fixed on the base, wherein the initial position of the support under the weight load from the object is fixed by means of two horizontal tie-rods fixed by one end to the corresponding axial hinge, and by the other end are connected to each other by means of a rod or pin, cut off when the specified loading value is exceeded. Shock-absorbing devices and unloading supports are made in the form of integrated structures, where the unloading support is installed inside the shock-absorbing device along its longitudinal axis by attaching its upper and lower support plates to the shock-absorbing device upper and lower rigid support plates, respectively, and the two horizontal tie-rods connection is reusable or recoverable, for which one tie-rod-pin holder is made partially in the form of a box with a transverse rectangular profile, by second end is installed by means of longitudinal slots in vertical walls in opposite axial hinge with provision of specified length of free travel when folding support and contains sheared pins fixed by the ends in the vertical walls of the tie-rod and installed horizontally perpendicular to the tie-rod walls and parallel to each other with vertical and horizontal offset in such a way that movement or displacement of the second tie-pin-cutting pin inside the box is provided, said tie-rods are mutual locked at initial weight load by engagement of cutting tie-rod hook with top pin of the set of pins on said tie-rod-pin holder. Mutual configuration of power hook and group of pins provides automatic transfer of hook engagement to the next pin located below cut pin from number of reserve links during reverse movement of tie-rods at restoration of support position due to straightening of lobes of elastomer shock absorber after termination of action on compression.

EFFECT: providing automation of system adaptive properties restoration process under conditions of multiple seismic action, compactness of structures to ensure their arrangement in the limited working space of the seismoisolating layer and access to them in accordance with the requirements for repairability while reducing the labour intensity of maintenance and operating costs.

1 cl, 12 dwg