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

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Published: Dec 22, 2022
DOI: https://doi.org/10.12681/ta.32172
Keywords:
Historic industrial RC Structures Progressive Collapse Upgrading by Cable-ties Input Parameters Uncertainty Seismic Sequences
Angelos Liolios
Hellenic Open University, School of Science and Technology, Patra, Greece
George Hatzigeorgiou
Hellenic Open University, School of Science and Technology, Patra, Greece
Konstantinos Liolios
Institute of Information and Communication Technologies, Bulgarian Academy of Sciences (BAS), Sofia, Bulgaria
Dimitrios Peidis
Democritus University of Thrace, Dept. of Architectural Engineering, Xanthi, Greece, and Techn. Staff in Sochos- Lagkadas Municipality, Greece
Abstract

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
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  • Uni and interdisciplinary approach for the sustainable preservation of Cultural Heritage
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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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