Abstract A case study of performance based seismic design (PBD) for a critical wharf facility is presented and compared to conventional design methods. The Oil Wharf at the Lyttelton Port is a critical infrastructure link for New Zealand’s South Island. The wharf suffered extensive damage…
Abstract At 12.03 am local time on 14th November 2016 (UTC: 11.03 am 13th November 2016) a shallow magnitude 7.8 earthquake, with an epicentre located near Waiau in North Canterbury, struck the North Canterbury and Marlborough regions of NZ. The most visible consequence of the…
Abstract Pumice materials, which are problematic from an engineering viewpoint, are widespread in many parts of the North Island. Following the 2010-2011 Christchurch earthquakes, a clear understanding of their properties under earthquake loading is necessary. For example, the 1987 Edgecumbe earthquake showed evidence of localised…
Abstract At 12.03 am local time on 14th November 2016 (UTC: 11.03 am 13th November 2016) a shallow, magnitude 7.8 earthquake struck near Waiau in North Canterbury, NZ. Strong ground shaking affected the North Canterbury and Marlborough regions of the South Island, causing widespread damage…
Abstract The 14 November 2016 Mw 7.8 Kaikōura earthquake triggered thousands of large landslides and caused severe disruption to the state highway and local road network in the North Canterbury and Marlborough regions. Damage to the network included landslides, debris flows, rock falls, failure of…
Abstract Liquefaction and associated lateral spreading during the 1987 Mw 6.5 Edgecumbe earthquake caused severe damage within parts of the Whakatane township. Liquefaction primarily manifested proximal to the Whakatane River in areas underlain by recent fluvial and marine sediments. The development of ground motion intensity…
Abstract This paper presents a summary of an example of application of pseudo-static analysis in the design of a bridge on a site prone to liquefaction. The example is one of the outcomes from Stage 2 of a research project commissioned by the NZ Transport…
Abstract While the factors affecting the liquefaction resistance of sands have been studied by many researchers, their behaviour post liquefaction needs further examination. More specifically, understanding the effects of various parameters on the stress-strain relation of sands during the post-liquefaction stage is important not only…
This document provides guidance for a risk-based process to manage liquefaction related risk in land use planning and development decision-making. While this guidance specifically focuses on liquefaction and its consequences, it is part of a broader objective that buildings and infrastructure be located and built with appropriate consideration of all aspects of…
Work is currently underway to update the NZTA Bridge Manual (BM) based on recent advancements in bridge design practice in New Zealand and worldwide, and also the NZTA’s experience on the performance of bridges during the Canterbury earthquakes. In the current 2nd edition of the BM various…