ABSTRACT
The article presents the criteria for evaluating uneven settlements of the bottom of steel vertical cylindrical tanks proposed by different authors. The technique of tray and field experiments with the flexible ring plate as a model of the bottom of loaded steel reservoirs is presented and substantiated. The results of the tray and field experiments with the use of the flexible ring plate undergoing uniformly distributed load by various pressures are presented. Deformation ratios of the edge and center of the flexible ring plate with uniformly distributed load are obtained and the results are compared with materials of other researchers.
