In this paper, the expression for the strain energy arbitrary shell, numerically equal to the work of the internal forces in the curvilinear coordinate system, which coincides with the lines of curvature of the middle surface of the shell, which is used in calculating the shell variation-energy method.

Keywords: envelope, variation-energy method, the minimum total potential energy of the system, movement, deformation.

Currently actively promote seismic associated with the use of special devices, so-called energopoglotiteley. Are very effective konstrutsii energopoglotiteley in which the working element undergoes torsional strain. These EPA have the maximum energy absorption with minimal weight.

Keywords: Earthquake protection, energy absorption, the diagram of deformation, plastic deformation, plastic torsion