Rueda-García, L.; Bonet Senach, JL.; Miguel Sosa, P.; Fernández Prada, MÁ. (2021). Safety Assessment of Shear Strength Current Formulations for Composite Concrete Beams without Web Reinforcement. Fédération Internationale du Béton (fib) - International Federation for Structural Concrete. 1-10. http://hdl.handle.net/10251/182209
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/182209
Título:
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Safety Assessment of Shear Strength Current Formulations for Composite Concrete Beams without Web Reinforcement
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Autor:
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Rueda-García, Lisbel
Bonet Senach, José Luís
Miguel Sosa, Pedro
Fernández Prada, Miguel Ángel
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Ingeniería de la Construcción y de Proyectos de Ingeniería Civil - Departament d'Enginyeria de la Construcció i de Projectes d'Enginyeria Civil
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Fecha difusión:
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Resumen:
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[EN] Construction with precast concrete elements without web reinforcement and cast-in-place concrete on them to enhance the overall structure's integrity is a widespread practice in building construction. However as these ...[+]
[EN] Construction with precast concrete elements without web reinforcement and cast-in-place concrete on them to enhance the overall structure's integrity is a widespread practice in building construction. However as these composite elements' vertical shear strength has not been studied in-depth, a clear criterion about cast-in-place concrete's contribution to shear resistance is still a pending matter. The present study intends to reach practical conclusions about the shear strength assessment of composite concrete elements without web reinforcement. To do so, the shear strengths of 36 specimens, provided
by existing shear formulations, were compared: 19 specimens tested by the authors, in which the existence of an interface between concretes, the cross-sectional shape and the concrete compressive strengths of the beam and slab were studied; and 17 specimens taken from a previous study about composite elements by Kim et al. (2016). The applied shear formulations were those of EC2-04, Draft 7 of EC2-20, fib MC-10, ACI 318-19 and the model proposed by Kim et al. (2016). Firstly, specimens' shear strength was calculated by considering that only the beam resisted shear. Secondly according to ACI 318-19 indications about assessing composite elements¿ shear strength, the entire composite element's effective depth was used considering the lower of the compressive strengths of the beam's and slab's concretes and the weighted average of the compressive strengths. Additionally,the entire effective depth and the beam's concrete compressive strength were used. Codes formulations were more precise when estimating the monolithic specimens' shear strengths than those of composites. Therefore, the development of an adapted methodology to assess these elements¿ shear strengths is needed. EC2-20 obtained the most accurate results and gave quite good estimations for composite elements when the entire effective depth and weighted average of the concretes
compressive strengths were considered.
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Palabras clave:
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Reinforced concrete
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Composite beam
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Precast construction
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Vertical shear strength
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Codes' shear formulations
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Derechos de uso:
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Reserva de todos los derechos
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ISBN:
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978-2-940643-08-0
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Fuente:
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Proceedings of the fib Symposium 2021 held online from Lisbon, Portugal, 14-16 June 2021. (issn:
2617-4820
)
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Editorial:
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Fédération Internationale du Béton (fib) - International Federation for Structural Concrete
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Versión del editor:
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https://www.fib-international.org/publications/fib-proceedings/i-fib-i-symposium-in-lisbon,-portugal-2021-proceedings-em-pdf-em-detail.html
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Título del congreso:
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fib Symposium 2021. Concrete Structures: New Trends for Eco-Efficiency and Performance
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Lugar del congreso:
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Online
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Fecha congreso:
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Junio 14-16,2021
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Código del Proyecto:
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099091-B-C21/ES/MEJORA DE LA SOSTENIBILIDAD, SEGURIDAD Y RESILIENCIA DE LA CONEXION ENTRE VIGAS SEGMENTADAS PREFABRICADAS DE HORMIGON MEDIANTE EL USO DE NUEVOS MATERIALES/
info:eu-repo/grantAgreement/AEI//BES-2016-078010//AYUDAS PARA CONTRATOS PREDOCTORALES PARA LA FORMACION DE DOCTORES-RUEDA GARCIA/
info:eu-repo/grantAgreement/MINECO//BIA2015-64672-C4-4-R/ES/EVALUACION EXPERIMENTAL DE VIGAS CONTINUAS PRETENSADAS, CON Y SIN REFUERZO, Y PIEZAS COMPUESTAS DE DOS HORMIGONES, PARA LA EXTENSION DE SU VIDA UTIL/
info:eu-repo/grantAgreement/GVA//AICO%2F2018%2F250//EVALUACION DE LA SEGURIDAD ESTRUCTURAL FRENTE A ESFUERZOS TANGENCIALES DE VIGAS COMPUESTAS DE HORMIGON./
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Agradecimientos:
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This study forms part of the research conducted at the Concrete Science and Technology University
Institute (ICITECH) of the Universitat Politècnica de València (UPV, Spain) with concrete supplied
by Caplansa. The project ...[+]
This study forms part of the research conducted at the Concrete Science and Technology University
Institute (ICITECH) of the Universitat Politècnica de València (UPV, Spain) with concrete supplied
by Caplansa. The project has been supported by the Spanish Ministry of Science and Innovation
through Projects BIA2015-64672-C4-4-R and RTI2018-099091-B-C21-AR; the Regional
Government of Valencia through Project AICO/2018/250, and the European Union with FEDER
funds. The authors thank the Spanish Ministry of Economy and Business for Grant BES-2016-078010.
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Tipo:
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Comunicación en congreso
Artículo
Capítulo de libro
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