A stochastic approach for upgrading Cultural Heritage framed concrete buildings by cable-ties to prevent progressive collapse under seismic sequences

Published: Dec 22, 2022
Historic industrial RC Structures Progressive Collapse Upgrading by Cable-ties Input Parameters Uncertainty Seismic Sequences
Angelos Liolios
George Hatzigeorgiou
Konstantinos Liolios
Dimitrios Peidis

Old industrial reinforced concrete (RC) structures included to built Cultural Heritage are subjected sometimes to obligatory removal of some structural element-members, e.g. columns. In such cases, a modification of the structural response and a redistribution of internal actions can result to a requirement for upgrading the remaining structure after the removal of the degraded elements in order to avoid a progressive collapse. The present study deals with such a case, which concerns the stochastic computational analysis of historic framed RC structures under the removal of some columns and the so-induced requirement of a strengthening by ties (tension only elements). The unilateral behaviour of these cable-ties, which can undertake only tension, is strictly considered. The response under seismic sequences of the remaining historic RC structure strengthened by ties is computed considering uncertain-but-bounded input parameters.

Article Details
  • Section
  • Uni and interdisciplinary approach for the sustainable preservation of Cultural Heritage
Author Biography
Angelos Liolios , Hellenic Open University, School of Science and Technology, Patra, Greece

Greek Ministry of Education, Directorate of Sec. Education of the Dodecanese, Rhodes, Greece

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