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Cracking of RC Structures: Differences between Tension and Flexure
Citation
Pérez Caldentey, Alejandro and García Sainz, Roberto (2019). Cracking of RC Structures: Differences between Tension and Flexure. In: "Nordic Workshop: Design and Construction of Sustainable Concrete Structures: Causes, Calculation and Consequences of Cracks", 16-17 October, 2019, Oslo, Norway. ISBN 978-82-8208-069-9. pp. 3-4.
Description
| Title: | Cracking of RC Structures: Differences between Tension and Flexure |
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| Author/s: |
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| Item Type: | Presentation at Congress or Conference (Other) |
| Event Title: | Nordic Workshop: Design and Construction of Sustainable Concrete Structures: Causes, Calculation and Consequences of Cracks |
| Event Dates: | 16-17 October, 2019 |
| Event Location: | Oslo, Norway |
| Title of Book: | Workshop Proceeding no. 17: Design and Construction of Sustainable Concrete Structures: Causes, Calculation and Consequences of Cracks |
| Date: | 2019 |
| ISBN: | 978-82-8208-069-9 |
| Subjects: | |
| Freetext Keywords: | Cracking, Flexure vs. Tension, Standard Formulations, Good/Poor Bond Position |
| Faculty: | E.T.S.I. Caminos, Canales y Puertos (UPM) |
| Department: | Mecánica de Medios Continuos y Teoría de Estructuras |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
Dominant cracking models for flexural elements are mostly based on assuming that a virtual tie forms around the reinforcement and the resulting expressions are derived from this assumption. The main difference in existing code formulations is that present in EN 1992-1-1:2004 in which the bond term for crack spacing is affected by factor k2 which is equal to 0.5 for bending and 1.0 for tension. This paper shows this to be an oversimplification of the problem. An improved proposal is made to account for this effect. But cracking in flexure is different from cracking in tension in other ways. One of them is the effect of curvature on the increase of crack width with cover. It will be shown that this effect, accounted for only in the comments of MC 2010, is very significant. Also, evidence of the effect of bad bond or good bond conditions on crack spacing, affecting mainly flexural members, will be given.
More information
| Item ID: | 64823 |
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| DC Identifier: | http://oa.upm.es/64823/ |
| OAI Identifier: | oai:oa.upm.es:64823 |
| Official URL: | https://nordicconcrete.net/events/workshops-and-miniseminars/ |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 20 Oct 2020 15:59 |
| Last Modified: | 20 Oct 2020 15:59 |
