An analytical method to identify reinforced concrete walls prone to out-of-plane shear failure (2019)
Type of ContentConference Contributions - Published
One of the failure modes that got the attention of researchers in the 2011 February New Zealand earthquake was the collapse of a key supporting structural wall of Grand Chancellor Hotel in Christchurch which failed in a brittle manner. However, until now this failure mode has been still a bit of a mystery for the researchers in the field of structural engineering. Moreover, there is no method to identify, assess and design the walls prone to such failure mode. Following the recent break through regarding the mechanism of this failure mode based on experimental observations (out-of-plane shear failure), a numerical model that can capture this failure was developed using the FE software DIANA. A comprehensive numerical parametric study was conducted to identify the key parameters contributing to the development of out-of-plane shear failure in reinforced concrete (RC) walls. Based on the earthquake observations, experimental and numerical studies conducted by the authors of this paper, an analytical method to identify walls prone to out-of-plane shear failure that can be used in practice by engineers is proposed. The method is developed based on the key parameters affecting the seismic performance of RC walls prone to out-of-plane shear failure and can be used for both design and assessment purposes
CitationNiroomandi A, Dhakal R, Pampanin S, Soleymani Ashtiani M (2019). An analytical method to identify reinforced concrete walls prone to out-of-plane shear failure. Dunedin, NZ: The New Zealand Concrete Industry Conference. 10/10/2019-12/10/2019.
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ANZSRC Fields of Research40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
RightsAll rights reserved unless otherwise stated
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Niroomandi A; Dhakal, Rajesh; Pampanin, Stefano; Soleymani Ashtiani, M.; de la Torre, C. (New Zealand Concrete Society, 2018)Following the recent earthquakes in Chile (2010) and New Zealand (2010/2011), peculiar failure modes were observed in Reinforced Concrete (RC) walls. These observations have raised a global concern on the contribution of ...
Shegay A; Dashti F; Hogan L; Lu Y; Niroomandi A; Seifi P; Zhang T; Dhakal, Rajesh; Elwood K; Henry R; Pampanin, Stefano (2020)A wide range of reinforced concrete (RC) wall performance was observed following the 2010/2011 Canterbury earthquakes, with most walls performing as expected, but some exhibiting undesirable and unexpected damage and failure ...
Niroomandi, A.; Pampanin, Stefano; Dhakal, Rajesh (University of Canterbury. Civil and Natural Resources Engineering, 2015)Existing New Zealand (NZ) building stock contains a significant number of structures designed prior to 1995 with non-ductile reinforced concrete (RC) columns. Recent earthquakes and research show that columns with such ...