2022 https://repo.nzsee.org.nz/xmlui/handle/nzsee/2462 2026-04-19T02:53:42Z 2026-04-19T02:53:42Z Johnston, David Tapuke, Kelvin Kaiser, Lucy Becker, Julia https://repo.nzsee.org.nz/xmlui/handle/nzsee/2508 2023-02-21T03:01:05Z 2022-04-27T00:00:00Z

Enhancing earthquake and tsunami preparedness and response in Kura Kaupapa Māori/Schools Aotearoa New Zealand: learnings from the 5 March 2021 East Cape earthquake sequence Johnston, David; Tapuke, Kelvin; Kaiser, Lucy; Becker, Julia Aotearoa New Zealand is exposed to numerous potentially damaging impacts from various hazard events. The east coast of the North Island, one of the most active seismic regions in New Zealand, faces significant earthquake and tsunami risk. Given the variety of hazards the regions face, how risks are managed within schools needs to be considered. This research aims to understand the challenges and opportunities for enhancing earthquake and tsunami preparedness and response in Te Tairāwhiti/ Waiāriki Kura Kaupapa Māori/ Schools. Ten schools were visited from Gisborne to Matata in August 2021. Information was collected from a hui with school staff and invited members of the school Board of Trustees. Topics included tsunami zones, evacuation practice, resources for teachers, planning at home, school response plans, stakeholder involvement, and capability development. Their reflections on the 5 March 2021 earthquakes and tsunami warnings were also covered. Initial analysis of the interviews reveals long-standing knowledge of earthquakes and tsunami risk, experience from past events and various risk management strategies for future events as well as insight on how isolated Māori communities collectively respond to disasters. There was a desire for further knowledge about what future events may look like and ways to prepare schools and the wider community. A return visit is planned for late 2022.

2022-04-27T00:00:00Z Zhan, Shen Chang-Richards, Alice Elwood, Kenneth Boston, Megan https://repo.nzsee.org.nz/xmlui/handle/nzsee/2507 2023-02-21T03:01:05Z 2022-04-27T00:00:00Z

Post-earthquake functional recovery: A critical review Zhan, Shen; Chang-Richards, Alice; Elwood, Kenneth; Boston, Megan Functional recovery not only transforms the retrofit of damaged buildings from an earthquake event but also contributes to community resilience. This paper aims to provide a state-of-the-art literature review of functional recovery research, with a focus on identifying the key factors affecting the restoration of post-earthquake functionality and implications of functional recovery for multi-storey buildings in the New Zealand context. It starts by reviewing research related to building resilience and recovery, followed by existing methodologies for quantifying functional recovery. It shows that the factors that affect the process and outcome of functional recovery fall into four categories, namely,  1) seismic resilience of the building itself, 2) resourcing for building repairs, 3) social and organisational preparedness and 4) governance. It is hoped that the introduction of functional recovery notion and methodology will not only influence the decision making of restoring those damaged buildings with residual capacity after an earthquake, but also will inform the changes in engineering design practice with whole-life cycle functionality taken into consideration.

2022-04-27T00:00:00Z Darani, Farhad M. Zarnani, Pouyan Quenneville, Pierre https://repo.nzsee.org.nz/xmlui/handle/nzsee/2503 2023-02-21T03:01:01Z 2022-04-27T00:00:00Z

Elastic Design (μ=1.0) of Damage Avoidance Structures Darani, Farhad M.; Zarnani, Pouyan; Quenneville, Pierre Damage Avoidance Design (DAD) has been considered an efficient way for seismic design. Different solutions to achieve a robust DAD structure has been proposed and tested by researchers in the past. However, there is a lack of simplified and office-engineer friendly design procedure to design DAD structures. Despite the benefits of the DAD structures, design difficulty may result in a tendency amongst the engineers to avoid damage avoidance in their designs. One of the challenges is the adoption of a suitable ductility factor. Engineers may wonder how to adopt a ductility factor for their DAD designs. There has been ongoing research to develop damping-ductility relationships for DAD systems. However, a unique yet simple procedure has not been introduced. This paper aims to change the current mindset of ductile design of DAD structures. DAD structures can be easily looked at as elastic systems with ductility of one with a suitable damping ratio. This simple procedure has been introduced, studied and verified in this paper. The results have been compared to Nonlinear Time History Analysis (NLTHA) confirming the reliability of the proposed μ=1.0 procedure for the seismic design of DAD systems.

2022-04-27T00:00:00Z Davies, Matt Alley, Gareth Cattanach, Alistair https://repo.nzsee.org.nz/xmlui/handle/nzsee/2505 2023-02-21T03:01:03Z 2022-04-27T00:00:00Z

Seismic retrofit of historic timber structures: Uncertainties and adaption on site Davies, Matt; Alley, Gareth; Cattanach, Alistair Existing timber structures, containing more hand-adapted and degradable components than other materials, provide challenges in ensuring your design intent is followed through on site. Often these buildings are flexible with dispersed seismic resistance, and so it is essential that any one component is not made significantly stiffer or stronger than the remainder. This paper uses two recent church retrofits: Old St Paul's and St John’s in the City in Wellington, to give examples of the types of unforeseen issues that can arise. Examples are given of how degradation assessment and repair was addressed, as well as existing damage, unforeseen connection eccentricity, and how modern screw technologies were used to solve difficult issues. The authors recommend appropriate provision of time and expertise required over and above ‘typical’ heritage retrofits.

2022-04-27T00:00:00Z