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Structural behaviour of post-installed reinforcement for 3D concrete printed shells A case study on water tanks

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Structural behaviour of post-installed reinforcement for 3D concrete printed shells A case study on water tanks

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dc.contributor.author Gebhard, Lukas es_ES
dc.contributor.author Mata Falcon, Jaime es_ES
dc.contributor.author Iqbal, Arshalan es_ES
dc.contributor.author Kaufmann, Walter es_ES
dc.date.accessioned 2024-10-02T18:02:41Z
dc.date.available 2024-10-02T18:02:41Z
dc.date.issued 2023-02-22 es_ES
dc.identifier.issn 0950-0618 es_ES
dc.identifier.uri http://hdl.handle.net/10251/209165
dc.description.abstract [EN] Incorporating sufficient reinforcement to ensure a ductile structural behaviour is a persisting challenge in digitally fabricated concrete structures. This paper investigates the structural performance of a reinforcement approach for 3D concrete printed elements, consisting of an unreinforced 3D printed concrete shell and a sprayed shell reinforced with a conventional reinforcing mesh for application in water tanks. Four reinforced concrete elements produced with this approach were tested in direct tension and compared to a reference test of a monolithic specimen to analyse the behaviour of circular water tanks under hoop stresses. Two eccentric reinforcement arrangements and two different printing patterns were investigated. Despite the testing setup not perfectly representing the actual behaviour of circular water tanks, in which shell deformations are kinematically restrained, the feasibility of the fabrication method could be examined. The results did not show significant differences in the behaviour of the different fabrication methods, with similar ductility as expected in a conventionally reinforced shell. The eccentric reinforcement caused the crack formation to originate on the surface close to the reinforcement, accompanied by out-of-plane deformations. The cracks on the far side of the reinforcement opened suddenly and reduced the out-of-plane deformations. The predictions with models neglecting the eccentricity of the reinforcement overestimated the crack opening. The best predictions were obtained from the tension chord model by only considering the concrete area defined by twice the mechanical cover of the reinforcement. es_ES
dc.description.sponsorship The authors would like to thank Knauf Gips KG for partially funding this study. The experimental campaign was funded by the Swiss National Science Foundation within the National Centre for Competence in Research in Digital Fabrication (project number 51NF40-141853). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Construction and Building Materials es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Digital fabrication es_ES
dc.subject 3D concrete printing es_ES
dc.subject Post-installed reinforcement es_ES
dc.subject Eccentric reinforcement es_ES
dc.subject Tensile tests es_ES
dc.subject.classification MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS es_ES
dc.title Structural behaviour of post-installed reinforcement for 3D concrete printed shells A case study on water tanks es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.conbuildmat.2022.130163 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/SNSF//51NF40-141853/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports es_ES
dc.description.bibliographicCitation Gebhard, L.; Mata Falcon, J.; Iqbal, A.; Kaufmann, W. (2023). Structural behaviour of post-installed reinforcement for 3D concrete printed shells A case study on water tanks. Construction and Building Materials. 366. https://doi.org/10.1016/j.conbuildmat.2022.130163 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.conbuildmat.2022.130163 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 366 es_ES
dc.relation.pasarela S\521514 es_ES
dc.contributor.funder Swiss National Science Foundation es_ES


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