Simplified Interactive Flexure-Shear Design Method for Concrete Beams Based on Plastic Stress Field
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Détails bibliographiques
| Auteur(s): |
Haipeng Lei
(School of Civil Engineering, Southeast University, Nanjing, Jiangsu, PR China)
Zhao Liu (School of Civil Engineering, Southeast University, Nanjing, Jiangsu, PR China) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019 | ||||
| Publié dans: | The Evolving Metropolis | ||||
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| Page(s): | 2094-2098 | ||||
| Nombre total de pages (du PDF): | 5 | ||||
| DOI: | 10.2749/newyork.2019.2094 | ||||
| Abstrait: |
Rational design approach for reinforced concrete beam under combined bending and shear needs to be developed, since they always occur simultaneously. Based on the Thurlimann’s fully-plastic stress field model, a parabolic envelope and an additional limitation for intensive shear capacity is derived. Then, a simplified flexural-shear design method for concrete beams is proposed suitable for different reinforcement layout, which is illustrated by a working example. It has to be admitted that the parallel cracked model is more applicable to shallow beam, for cracking pattern in small shear-to-span ratio regions is quite different. In addition, the ductility of reinforcement must be ensured to prevent possible brittle premature failure. |
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