COMPORTAMENTO CICLICO DI PANNELLI SOTTILI IN ACCIAIO

ItalianoLa memoria riporta i risultati di indagini sperimentali su pareti sottili in acciaio sottoposte ad azioni cicliche, ponendo in risalto le capacit\ue0 dissipative. Le prove sono state condotte presso il laboratorio DISMAT di Canicatt\uec (AG)su modelli in scala 1:2. I risultati evidenziano le riserve di resistenza dei pannelli in fase post critica.Results of experimental tests on Steel Plate Shear Wall (SPSW) placed in steel frames subjected to cyclic actions are presented, stressing the dissipative capacity of the system. The tests were performed at the DISMAT laboratory in Canicatt\uec (AG) on scale specimens. The surrounding frame is made by HEA 160 beam and columns with pinned joint, and by SPSW of dimensions 1500 x 1150 mm connected to the surrounding frame by bolts; tests with several different thickness of SPSW were performed.. The experimental results show the large residual strength of the SPSW in the post-buckling phase and the dissipative efficiency is proved by evaluation of a meaningful response parameter of energetic derivation