Experimental and theoretical investigation of crack width calculation methods for RC ties
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 fr...
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| Veröffentlicht in: | Structural concrete : journal of the FIB 2018-10, Vol.19 (5), p.1436-1447 |
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| container_title | Structural concrete : journal of the FIB |
| container_volume | 19 |
| creator | Tan, Reignard Eileraas, Kristoffer Opkvitne, Ola Žirgulis, Giedrius Hendriks, Max A. N. Geiker, Mette Brekke, Dan‐Evert Kanstad, Terje |
| description | 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. |
| doi_str_mv | 10.1002/suco.201700237 |
| format | Article |
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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.</description><identifier>ISSN: 1464-4177</identifier><identifier>EISSN: 1751-7648</identifier><identifier>DOI: 10.1002/suco.201700237</identifier><language>eng</language><publisher>Weinheim: WILEY‐VCH Verlag GmbH & Co. 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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.</description><subject>Building codes</subject><subject>calculation methods</subject><subject>Concrete</subject><subject>Concrete structures</subject><subject>cover</subject><subject>crack widths</subject><subject>Deformation</subject><subject>Differential equations</subject><subject>Equilibrium</subject><subject>experiments</subject><subject>Investigations</subject><subject>large‐scale concrete structures</subject><subject>modeling uncertainty</subject><subject>RC ties</subject><subject>Reinforced concrete</subject><subject>semi‐empirical formulas</subject><subject>tension stiffening</subject><issn>1464-4177</issn><issn>1751-7648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkMtLAzEQxoMoWKtXzwHPW_NO9yhLfUChoPbgKaTZrE3dbmqStfa_N7KiR08zw_y-eXwAXGI0wQiR69gbPyEIy1xQeQRGWHJcSMGmxzlnghUMS3kKzmLcZCTnfAReZp87G9zWdkm3UHc1TGvrg03O5Np1HzYm96qT8x30DTRBmze4d3VawwyYvh1aW5vWvo6w8QE-VjA5G8_BSaPbaC9-4hgsb2fP1X0xX9w9VDfzwlAuZWEpMY1pyhVlDbaMCEwIokLa0kjBccktMyu0MqLEtZaaUykEErVlnHBtBKVjcDXM3QX_3udz1cb3ocsrFcGUEZq_nmZqMlAm-BiDbdQuf63DQWGkvu1T3_apX_uyoBwEe9fawz-0elpWiz_tF9POdJc</recordid><startdate>201810</startdate><enddate>201810</enddate><creator>Tan, Reignard</creator><creator>Eileraas, Kristoffer</creator><creator>Opkvitne, Ola</creator><creator>Žirgulis, Giedrius</creator><creator>Hendriks, Max A. 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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Building codes calculation methods Concrete Concrete structures cover crack widths Deformation Differential equations Equilibrium experiments Investigations large‐scale concrete structures modeling uncertainty RC ties Reinforced concrete semi‐empirical formulas tension stiffening |
| title | Experimental and theoretical investigation of crack width calculation methods for RC ties |
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