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Wellington's sedimentary basin and its role in amplifying earthquake ground motions: new CBD 3D model and maps
(New Zealand Society for Earthquake Engineering, 2020-04-22)
During the Mw7.8 Kaikōura earthquake, ground motions in central Wellington were clearly influenced by both the nature of the earthquake source and local amplification effects due to the sedimentary basin. These effects ...
Development and implications of an expanded national earthquake catalogue for New Zealand
(New Zealand Society for Earthquake Engineering, 2021-04-14)
In the last two decades, New Zealand (NZ) has experienced significant earthquakes, including the 2010 M 7.2 Darfield, 2011 M 6.2 Christchurch, and 2016 M 7.8 Kaikōura events. Amongst these large events, tens of thousands ...
Monotonic and Cyclic Pushover Testing of Isolated Piles of the Whirokino Trestle
(New Zealand Society for Earthquake Engineering, 2021-04-14)
In New Zealand, over 60% of State Highway bridges were designed and built during eras with low seismic provisions and most of these bridges are supported by pile foundations. An improved understanding of the in-service ...
Wellington basin amplification: research goals and update from the National Seismic Hazard Model Programme
(New Zealand Society for Earthquake Engineering, 2021-04-14)
In Wellington, 3D basin amplification effects observed at 1 – 2 second spectral periods were identified as one factor likely to have exacerbated damage to mid-rise structures during the 2016 Mw 7.8 Kaikōura earthquake ...