Historic adjacent concrete buildings strengthened by cable-ties under seismic pounding effects: A stochastic approach considering uncertain input parameters

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Published: Jul 28, 2023
DOI: https://doi.org/10.12681/ta.34867
Keywords:
Historic RC Structures, Seismic pounding effects, Upgrading by Cable-ties, Seismic Sequences, Input Parameters Uncertainty, Monte Carlo method.
Angelos Liolios
Hellenic Open University, School of Science and Technology, Patra, Greece
Maria Stavroulaki
Technical University of Crete, School of Architecture, Chania, Greece
Konstantinos Liolios
International Hellenic University, Department of Environmental Engineering, Sindos, Thessaloniki, Greece
Foteini Konstandakopoulou
Hellenic Open University, School of Science and Technology, Patra, Greece
Abstract

Cultural Heritage structures include existing old industrial framed reinforced concrete (RC) buildings. The present study deals with a stochastic numerical treatment for the pounding problem concerning the seismic interaction between historic adjacent framed structures strengthened by cable-ties (tension-only bracings) when the input parameters are uncertain. This problem concerns here the unilateral contact between neighbouring structures during earthquakes and is considered as an inequality problem of dynamic structural contact mechanics. The Monte Carlo method is used for treating the uncertainty concerning input parameters. The purpose here is to estimate numerically and to control actively the influence of the cable-ties on the seismic response of the adjacent structures. Finally, in a practical case of two seismically interacting historic framed reinforced concrete (RC) structures, the effectiveness of the proposed methodology is shown.

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