Low-cycle fatigue testing on strain-aged steel reinforcing bars

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dc.contributor.authorLoporcaro G
dc.contributor.authorPampanin, Stefano
dc.contributor.authorKral M
dc.date.accessioned2020-10-27T22:37:31Z
dc.date.available2020-10-27T22:37:31Z
dc.date.issued2020en
dc.date.updated2020-09-30T21:22:45Z
dc.description.abstractDuring earthquakes, steel reinforcing bars in reinforced concrete structures may be subjected to large inelastic deformation in tension and compression as high as 6% strain, eventually leading to low-cycle fatigue failure (Mander, Panthaki, & Kasalanati, 1994). This was observed in laboratory testing and post-earthquake damage inspections including during the Mw 7.8 Kaikoura earthquake in New Zealand (NZ) (see Figure 1 and Figure 2) (El-Bahy, Kunnath, Stone, & Taylor, 1999b; El-Bahy, Kunnath, Stone, & Taylor, 1999a; Palermo et al., 2017). Earthquakes are usually preceded and/or followed by other events of larger or smaller intensity; longitudinal steel failures may not occur during a first event, but in a subsequent one due to the cumulative damage. Seismic events can also occur several months apart and during this period, if the steel has experienced any post-yielding deformation during the first event, strain ageing takes place, modifying the mechanical properties of the material. In this document, fatigue lives for unaged and aged 12-mm diameter NZ-manufactured Grade 300E reinforcing bars are compared.en
dc.identifier.citationLoporcaro G, Pampanin S, Kral M (2020). Low-cycle fatigue testing on strain-aged steel reinforcing bars. Christchurch, New Zealand: 8th International Conference on Advances in Experimental Structural Engineering. 03/02/2020-05/02/2020.en
dc.identifier.urihttps://hdl.handle.net/10092/101187
dc.language.isoen
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineeringen
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400509 - Structural dynamicsen
dc.titleLow-cycle fatigue testing on strain-aged steel reinforcing barsen
dc.typeConference Contributions - Otheren
uc.collegeFaculty of Engineering
uc.departmentCivil and Natural Resources Engineering
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