Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/88546
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Portioli, Francesco P. A. | por |
dc.contributor.author | Godio, Michele | por |
dc.contributor.author | Calderini, Chiara | por |
dc.contributor.author | Lourenço, Paulo B. | por |
dc.date.accessioned | 2024-02-06T11:08:17Z | - |
dc.date.available | 2024-02-06T11:08:17Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Portioli, F. P. A., Godio, M., Calderini, C., & Lourenço, P. B. (2021). A variational rigid‐block modeling approach to nonlinear elastic and kinematic analysis of failure mechanisms in historic masonry structures subjected to lateral loads. Earthquake Engineering & Structural Dynamics. Wiley. http://doi.org/10.1002/eqe.3512 | por |
dc.identifier.issn | 0098-8847 | por |
dc.identifier.uri | https://hdl.handle.net/1822/88546 | - |
dc.description | The authors make available the data needed to reproduce the article's content at the following permanent repository: https://doi.org/10.5281/zenodo.4919042. | por |
dc.description.abstract | Displacement-based methods contained in recent standards for seismic safety assessment require the determination of the full nonlinear pushover curve for local failure mechanisms in historic masonry structures. This curve should reflect both the initial elastic behavior and the rigid body behavior after the activation of rocking. In this work, a rigid block model is proposed for the displacement-based seismic assessment of local collapse mechanisms of these structures. Masonry is modeled as an assemblage of two-dimensional rigid blocks in contact through frictional interfaces. Two types of contact models are formulated to capture, respectively, the pre and postpeak branches of the pushover curve: a unilateral elastic contact model, capturing the initial nonlinear behavior up to the force capacity of the structure, corresponding to the activation of the collapse mechanism, and a rigid contact model with finite friction and compressive strength, which describes the rigid-body rocking behavior up to the attainment of the displacement capacity of the structure. Tension-only elements are also implemented to model strengthening interventions with tie-rods. The contact problems associated with the elastic and rigid contact models are formulated using mathematical programming. For both models, a sequential solution procedure is implemented to capture the variation of the load multiplier with the increasing deformation of the structure (P-Delta effect). The accuracy of the modeling approach in reproducing the pushover curve of masonry panels subjected to horizontal seismic loads is evaluated on selected case studies. The solution is first tested against hand calculations, existing analytical models, and distinct element simulations. Then, comparisons against experimental tests follow. As a final application, the failure mechanism and pushover curve of a triumphal masonry arch are predicted by the model and its seismic assessment is performed according to codified force- and displacement-based methods, demonstrating the ad | por |
dc.description.sponsorship | The financial support of the research project DPC-ReLUIS: Work Package 5 "Integrated and low-impact strengthening interventions" (2019-2021) is acknowledged. The authors are also grateful to Dr. Lucrezia Cascini, Prof. Mario D'Aniello, Mr. Mario Torricella, and Mr. Domenico Imperatrice from the Department of Structures for Engineering and Architecture for their assistance and support in the preparation of the specimens, test setup, and throughout the execution of experimental investigations. | por |
dc.language.iso | eng | por |
dc.publisher | Wiley | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | displacement-based method | por |
dc.subject | distinct element method | por |
dc.subject | large displacements | por |
dc.subject | masonry | por |
dc.subject | mathematical programming | por |
dc.subject | rigid block model | por |
dc.subject | sequential limit analysis | por |
dc.subject | unilateral elastic contacts | por |
dc.title | A variational rigid-block modeling approach to nonlinear elastic and kinematic analysis of failure mechanisms in historic masonry structures subjected to lateral loads | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/10.1002/eqe.3512 | por |
oaire.citationStartPage | 3332 | por |
oaire.citationEndPage | 3354 | por |
oaire.citationIssue | 12 | por |
oaire.citationVolume | 50 | por |
dc.date.updated | 2024-02-03T15:41:50Z | - |
dc.identifier.doi | 10.1002/eqe.3512 | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia Civil | por |
dc.subject.wos | Science & Technology | - |
sdum.export.identifier | 13060 | - |
sdum.journal | Earthquake Engineering & Structural Dynamics | por |
oaire.version | VoR | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
2021_EESD_50_12_A variational rigid-block modeling approach to nonlinear elastic and kinematic analysis of failure mechanisms in historic masonry structures subjected to lateral loads.pdf | 2,1 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons