Earthquakes and Structures

  • 제7권1호
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  • Pages.57-82
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  • 2014
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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Seismic assessment and retrofitting of Pombalino buildings by pushover analyses

  • Meireles, Helena (ICIST, Instituto Superior Tecnico, University of Lisbon) ;
  • Bento, Rita (ICIST, Instituto Superior Tecnico, University of Lisbon) ;
  • Cattari, Serena (DICCA, Department of Civil, Chemical and Environmental Engineering, University of Genoa) ;
  • Lagomarsino, Sergio (DICCA, Department of Civil, Chemical and Environmental Engineering, University of Genoa)
  • 투고 : 2013.06.27
  • 심사 : 2014.03.03
  • 발행 : 2014.07.31
⟨ 이전 논문 다음 논문 ⟩

초록

The heritage value of the mixed wood-masonry 18th century Pombalino buildings of downtown Lisbon is recognized both nationally and internationally. The present paper focuses on the seismic assessment of global response and retrofitting of a typical Pombalino building by nonlinear static analyses, performed by the research software Tremuri, which is able to model 3D configurations. The structure is modelled using nonlinear beams for masonry panels, while in case of the internal walls (frontal walls) an original formulation has been developed in order to take into account their specific seismic behaviour. Floors are modelled as orthotropic membrane finite elements: this feature allows to simulate the presence of both flexible and rigid diaphragms, being the first ones more representative of the original state while the second ones of retrofitted configurations. Seismic assessment has been evaluated by applying nonlinear static procedure and comparing the performance of different configurations (by considering various retrofitting strategies). Finally, assuming a lognormal cumulative distribution, fragility curves are obtained to be representative of Pombalino buildings: the most important application of such curves is for seismic risk and loss estimation analyses.

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과제정보

연구 과제 주관 기관 : Portuguese Foundation for Science and Technology

참고문헌

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  4. Design aspects for minimizing the rotational behavior of setbacks buildings vol.10, pp.5, 2016, https://doi.org/10.12989/eas.2016.10.5.1049
  5. Fragility curves for old masonry building types in Lisbon vol.13, pp.10, 2015, https://doi.org/10.1007/s10518-015-9750-1
  6. A numerical procedure for the pushover analysis of masonry towers vol.93, 2017, https://doi.org/10.1016/j.soildyn.2016.07.022
  7. An energy-based pushover-analysis with torque-effects in assessment of the structures with asymmetric plan vol.108, pp.None, 2018, https://doi.org/10.1016/j.soildyn.2018.02.005
  8. Fragility Functions for Tall URM Buildings around Early 20th Century in Lisbon, Part 2: Application to Different Classes of Buildings vol.15, pp.3, 2014, https://doi.org/10.1080/15583058.2019.1661136
  9. Stochastic Dynamic Analysis of Cultural Heritage Towers up to Collapse vol.11, pp.7, 2014, https://doi.org/10.3390/buildings11070296