ABSTRACT

ABSTRACT: Almost Lifted Structure Concept (“ALSC”) is a specific solution which belongs to the well known “sliding concept”, where the main structure is split from the supporting structure, thus allowing the main structure to slide, when forced. The sliding force is controlled by means of system for lifting of themain structure.The efficiency of the “ALSC” systemhas been demonstrated on 1/3 scale model of liquid storage tank, tested on two-component seismic shaking table at IZIIS dynamic testing laboratory. It was proved that the “ALSC” system produce significant reduction of energy transmission from supporting to the main structure within the broad frequency range, for different intensity of ground shaking. Because of its high efficiency, relatively simple installation, low cost and simple maintenance, the ALSC system is highly recommended by authors to be applied on reservoirs, special industrial structures (turbo-generator foundations, chemical laboratories), public structures (schools, hospitals, libraries, administrative buildings), residential houses, buildings etc.