PREFABRICATED SHELTER Russian patent published in 2018 - IPC E04H9/02 

FIELD: construction.

SUBSTANCE: invention relates to a technique for preventing earthquake consequences. Pre-fabricated shelter contains a framework, an airlock, places for accommodation of evacuees, a filtering and ventilation device, a toilet and water and food supplies. It is equipped with a modular quick-erected earthquake-proof structure containing connected in a single construction system of modules and connecting elements, it consists of elements made in the form of blocks, some of which are made in the form of a rectangular parallelepiped with grooves made on four faces of the parallelepiped, in the plane of its symmetry, grooves being formed with cylindrical holes for the outer diameter of the cylindrical body of the connecting member, and the other blocks are interfaced with the first ones and are made in the form of a rectangular parallelepiped with spikes executed on four faces of the parallelepiped, spikes being provided with cylindrical holes for the outer diameter of the cylindrical body of the connecting member, wherein the surfaces of the grooves and studs are equidistant, congruent and equal in size and are connected to a modular prefabricated structure by means of connecting elements. Hollow reinforcing bar is a cylindrical damping element to which ends flat rigid stops are rigidly attached, and the inner cavity is filled with a set of at least two damping disks fixed to an elastic axis coaxially disposed with the cylindrical shell, and between damping disks at least one cylindrical helical spring is located, wherein the cavity in which the spring is located is filled with a vibration damping material, for example polyurethane, at that the rigidly attached to the flanged, oppositely disposed, cylindrical threaded bushings flat rigid stops of the connecting element are made of a combination of at least three layers: external are made rigid, and the third located between them layer is made damping.

EFFECT: reduction of the shelter construction time due to providing the frame with a modular enclosed structure.

1 cl, 6 dwg