Simplified micro-modeling of partially-grouted reinforced masonry shear walls with bed-joint reinforcement: Implementation and validation

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dc.article.number111987
dc.catalogadorgjm
dc.contributor.authorCalderón Díaz, Sebastián Andrés
dc.contributor.authorMilani, Gabriele
dc.contributor.authorSandoval Mandujano, Cristián
dc.date.accessioned2024-03-27T13:32:09Z
dc.date.available2024-03-27T13:32:09Z
dc.date.issued2021
dc.description.abstractPartially grouted reinforced masonry (PG-RM) shear walls of hollow concrete blocks (HCB) have been an object of study during the last years. The non-constant cross-section of this type of structural element and the presence of reinforcement set a challenging scenario when assessing their lateral resistance. This scenario makes simple approaches (e.g., design expressions) lacking accuracy. Besides, the most accurate existent analysis methodologies rely on user-defined sub-routines that are not available for commercial use. Therefore, proper analysis methodologies are still a need. In this regard, this research aims at reproducing the behavior of PG-RM shear walls with bed-joint reinforcement with a simple but also accurate approach. In this line, the in-plane behavior of PG-RM shear walls was reproduced by implementing 2D micro-models in a multi-purpose commercial FE code without requiring excessive work, advanced programming skills, and unaffordable hardware. The model approach was validated by reproducing two identical full-scale PG-RM shear walls. Although the model was not able to reproduce cyclic loading as in the tests, the model captured the experimental failure mode and lateral resistance with an acceptable degree of accuracy. Moreover, the distribution of cracks and deformations in horizontal reinforcement elements were appropriately reproduced at the lateral resistance, indicating the most demanded reinforcement portions. Additionally, the proposed modeling approach was compared with two alternative approaches: a 2D model that reproduced tensile failure employing interfaces and a smeared crack model and a 3D model that reproduced tensile failure utilizing a smeared crack model. The benchmark results pointed out the advantages of the reference model over the alternative modeling approaches. The first alternative model reproduced an excessive displacement capacity, and the second alternative model simulated an inaccurate crack pattern and was associated with a heavy computational burden.
dc.format.extent24 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1016/j.engstruct.2021.111987
dc.identifier.urihttp://dx.doi.org/10.1016/j.engstruct.2021.111987
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84811
dc.information.autorucEscuela de Ingeniería; Calderón Díaz, Sebastián Andrés; S/I; 194180
dc.information.autorucEscuela de Ingeniería; Sandoval Mandujano, Cristián; 0000-0002-3639-5126; 1010864
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaEngineering Structures
dc.rightsacceso restringido
dc.subjectMicro-mechanical approach
dc.subjectPartially grouted reinforced masonry (PG-RM)
dc.subjectShear Walls
dc.subjectAdvanced FE numerical modelling
dc.subjectSmeared crack 2D-3D models
dc.titleSimplified micro-modeling of partially-grouted reinforced masonry shear walls with bed-joint reinforcement: Implementation and validation
dc.typeartículo
dc.volumen234
sipa.codpersvinculados194180
sipa.codpersvinculados1010864
sipa.trazabilidadORCID;2024-03-25
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