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Article: Deformability design of high-performance concrete beams

TitleDeformability design of high-performance concrete beams
Authors
KeywordsBeams
Curvature
Deformability
High-performance materials
High-strength concrete
High-strength steel
Issue Date2013
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1541-7794/
Citation
The Structural Design of Tall and Special Buildings, 2013, v. 22 n. 9 p. 729–748 How to Cite?
AbstractThe use of high-performance materials (HPMs) such as high-strength concrete (HSC) and high-strength steel (HSS) is becoming more popular in the construction of beams and columns of tall buildings. These HPMs not only increase the stiffness and decrease the strength-to-weight ratio, but also provide a more sustainable construction method by minimising the construction materials needed. However, HSC and HSS are more brittle than normal-strength concrete and steel, respectively. Therefore, it will adversely affect the deformability of concrete beams. To evaluate the pros and cons of adopting HPM in beam design, the author will investigate the flexural strength and deformability of concrete beams made of HPMs. The deformability in this study is expressed in normalised rotation capacity and investigated by a parametric study using nonlinear moment-curvature analysis taking into account the degree of reinforcement, confining pressure, concrete and steel yield strength. From the results, it is evident that the deformability of concrete beams increases as the degree of reinforcement decreases or confining pressure increases. However, the effects of concrete and steel yield strength depend on other factors. For practical design purpose, charts and formulas are produced for designing high-performance concrete beams to meet with specified flexural strength and deformability requirement. © 2011 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/150603
ISSN
2015 Impact Factor: 0.898
2015 SCImago Journal Rankings: 0.690
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHo, JCMen_US
dc.date.accessioned2012-06-26T06:06:04Z-
dc.date.available2012-06-26T06:06:04Z-
dc.date.issued2013en_US
dc.identifier.citationThe Structural Design of Tall and Special Buildings, 2013, v. 22 n. 9 p. 729–748en_US
dc.identifier.issn1541-7794en_US
dc.identifier.urihttp://hdl.handle.net/10722/150603-
dc.description.abstractThe use of high-performance materials (HPMs) such as high-strength concrete (HSC) and high-strength steel (HSS) is becoming more popular in the construction of beams and columns of tall buildings. These HPMs not only increase the stiffness and decrease the strength-to-weight ratio, but also provide a more sustainable construction method by minimising the construction materials needed. However, HSC and HSS are more brittle than normal-strength concrete and steel, respectively. Therefore, it will adversely affect the deformability of concrete beams. To evaluate the pros and cons of adopting HPM in beam design, the author will investigate the flexural strength and deformability of concrete beams made of HPMs. The deformability in this study is expressed in normalised rotation capacity and investigated by a parametric study using nonlinear moment-curvature analysis taking into account the degree of reinforcement, confining pressure, concrete and steel yield strength. From the results, it is evident that the deformability of concrete beams increases as the degree of reinforcement decreases or confining pressure increases. However, the effects of concrete and steel yield strength depend on other factors. For practical design purpose, charts and formulas are produced for designing high-performance concrete beams to meet with specified flexural strength and deformability requirement. © 2011 John Wiley & Sons, Ltd.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1541-7794/en_US
dc.relation.ispartofThe Structural Design of Tall and Special Buildingsen_US
dc.rightsThe Structural Design of Tall and Special Buildings. Copyright © John Wiley & Sons Ltd.-
dc.rightsThe definitive version is available at www3.interscience.wiley.com-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectBeamsen_US
dc.subjectCurvatureen_US
dc.subjectDeformabilityen_US
dc.subjectHigh-performance materialsen_US
dc.subjectHigh-strength concreteen_US
dc.subjectHigh-strength steelen_US
dc.titleDeformability design of high-performance concrete beamsen_US
dc.typeArticleen_US
dc.identifier.emailHo, JCM: johnny.ho@hku.hken_US
dc.identifier.authorityHo, JCM=rp00070en_US
dc.description.naturepreprinten_US
dc.identifier.doi10.1002/tal.728en_US
dc.identifier.scopuseid_2-s2.0-84878018027en_US
dc.identifier.hkuros204887-
dc.identifier.isiWOS:000319067700005-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridHo, JCM=24831880500en_US

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