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ABSTRACT
Existing heritage buildings are often composed of diverse materials and structural typologies, representing a challenge for structural analysis tasks. This work investigates the combined use of simple Lumped Plasticity Models (LPM) and macro-mechanical Finite Element (FE) approaches to evaluate the seismic response of structures composed of timber frames and masonry walls. The calibration of these engineering models is derived from a wide set of nonlinear static analyses reproducing benchmark experiments on timber and masonry specimens. The LPM and FE models are used eventually to appraise the seismic response of two existing timber-masonry hybrid buildings, located in the historical centre of Valparaíso, Chile. The nonlinear analyses performed with these models predict the acceleration-displacement capacity of the buildings under seismic-like horizontal loading, revealing their potential local and global failure mechanisms.
Acknowledgments
The authors gratefully acknowledge the financial support from the Ministry of Science, Innovation and Universities of the Spanish Government (MCIU), the State Agency of Research (AEI), as well as the ERDF (European Regional Development Fund), through the SEVERUS project (Multilevel evaluation of seismic vulnerability and risk mitigation of masonry buildings in resilient historical urban centres, ref. num. RTI2018–099589–B–I00). The first author gratefully acknowledges the ELARCH project (Euro-Latin America partnership in natural Risk Mitigation and protection of the Cultural Heritage, reference number 552129–EM–1–2014-1–IT– ERASMUS MUNDUS EMA21), funded by the European Commission, for the financial support of her predoctoral grant.
Disclosure statement
No potential conflict of interest was reported by the author(s).