Print Email Facebook Twitter Experimental and theoretical investigation of crack width calculation methods for RC ties Title Experimental and theoretical investigation of crack width calculation methods for RC ties Author Tan, Reignard (Norwegian University of Science and Technology (NTNU)) Eileraas, Kristoffer (Norwegian University of Science and Technology (NTNU)) Opkvitne, Ola (Norwegian University of Science and Technology (NTNU)) Žirgulis, Giedrius (Norwegian University of Science and Technology (NTNU)) Hendriks, M.A.N. (TU Delft Applied Mechanics; Norwegian University of Science and Technology (NTNU)) Geiker, Mette (Norwegian University of Science and Technology (NTNU)) Brekke, Dan Evert Kanstad, Terje (Norwegian University of Science and Technology (NTNU)) Date 2018 Abstract This paper theoretically and experimentally investigates the semi-empirical formulas recommended by Eurocode 2 (EC2), fib Model Code 2010 (MC2010), and Eurocode 2 with the German National Annex (DIN) for calculating crack widths in reinforced concrete. It is shown that the formulas can be derived from the principles for the idealized behavior of RC ties. However, instead of explicitly solving the resulting differential equations, the use of simplifications leads to inconsistent formulas. An experimental study was carried out involving the testing of eight RC ties to discover the modeling uncertainty of the formulas. It was found that EC2 substantially overestimated the crack widths for the RC ties. MC2010 and DIN seemed to predict the crack widths better, but gave rather a large number of nonconservative crack width predictions. These experimental results, combined with the theoretical study, suggest that a more consistent calculation model should be formulated by explicitly solving the resulting differential equation. Subject Calculation methodsCoverCrack widthsExperimentsLarge-scale concrete structuresModeling uncertaintyRC tiesSemi-empirical formulasTension stiffening To reference this document use: http://resolver.tudelft.nl/uuid:32fd40c2-dc21-479d-bf69-8f7a8b4c62c6 DOI https://doi.org/10.1002/suco.201700237 Embargo date 2019-01-04 ISSN 1464-4177 Source Structural Concrete, 19 (5), 1436-1447 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 Reignard Tan, Kristoffer Eileraas, Ola Opkvitne, Giedrius Žirgulis, M.A.N. Hendriks, Mette Geiker, Dan Evert Brekke, Terje Kanstad Files PDF Structural_Concrete_2018_ ... for_RC.pdf 3.1 MB Close viewer /islandora/object/uuid:32fd40c2-dc21-479d-bf69-8f7a8b4c62c6/datastream/OBJ/view