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The effect of detailing steel in the compression regions of internal supports on the ductility of reinforced concrete beams

journal contribution
posted on 06.12.2017, 00:00 by B Cagney, Koon Wong
A clause on detailing in AS 3600 stipulates that 25 percents of the maximum steel in the span of a reinforced concrete beam has to be extended beyond the near face of each internal support. This suggests that the internal support regions have more flexural ductility than the original designed amount. This ductility is obtained indirectly by determining the amount of moment that the support regions are capable of distributing. Non-linear analysis of beams designed and detailed to the design limits specified by AS3600 shows that they have substantial reserve in moment redistribution and load capacity as a result of the inclusion of steel in the compressive zones of the supports. This reserve capacity can be exploited for design and for the strengthening of beams.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

4

Start Page

45

End Page

54

Number of Pages

10

ISSN

1443-9255

Location

Melbourne

Publisher

EJSE International

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

James Goldston Faculty of Engineering and Physical Systems; TBA Research Institute;

Era Eligible

Yes

Journal

Electronic Journal of Structural Engineering

Usage metrics

CQUniversity

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