591 research outputs found
Seismic hazard in Auckland
No full textPresentation by University of Auckland Associate Professor Liam Wotherspoon </p
Liam Rector, 14th Annual ODU Literary Festival
No full textLiam Rector is the author of The Sorrow of Architecture, a book of poems. He\u27s also the editor of The Day I Was Older: On the Poetry of Donald Hall. He has taught at Old Dominion University, George Mason, Goucher College, and Phillips Academy at Andover. In addition, he has administered literary programs at the Folger Academy of American Poets. Currently, Liam Rector is executive director of Associated Writing Programs, which has lately taken a leading role in defending the 1st amendment. Rector has been awarded both NEA and Guggenheim fellowships for poetry
Liam Rector, 12th Annual ODU Literary Festival
No full textLiam Rector is the author of a book of poetry, The Sorrow of Architecture, 1984, and editor of The Day I Was Older: On the Poetry of Donald Hall, 1989, and is currently working on a second book of poems, tentatively titled The Persistence of Virginia. He is executive director of the Associated Writing Programs, located at Old Dominion University
sj-xlsx-1-eqs-10.1177_87552930221130762 – Research Data for The influence of multiple impedance contrasts on mHVSR site period estimates in the Canterbury Plains of New Zealand and implications for site classification
No full textResearch Data, sj-xlsx-1-eqs-10.1177_87552930221130762 for The influence of multiple impedance contrasts on mHVSR site period estimates in the Canterbury Plains of New Zealand and implications for site classification by Andrew Stolte, Liam Wotherspoon, Brady Cox, Clinton Wood, Seokho Jeong and James Munro in Earthquake Spectra</p
sj-docx-1-eqs-10.1177_87552930231209726 – Supplemental material for Combining observed linear basin amplification factors with 1D nonlinear site-response analyses to predict site response for strong ground motions: Application to Wellington, New Zealand
No full textSupplemental material, sj-docx-1-eqs-10.1177_87552930231209726 for Combining observed linear basin amplification factors with 1D nonlinear site-response analyses to predict site response for strong ground motions: Application to Wellington, New Zealand by Christopher A de la Torre, Brendon A Bradley, Felipe Kuncar, Robin L Lee, Liam M Wotherspoon and Anna E Kaiser in Earthquake Spectra</p
The Resiliency of Communication Infrastruture During (AF8) Earthquake Scenarios in West Coast, NZ
No full textThe Resiliency of Communication infrastructure during Alpine fault 8 (AF8)
Earthquake scenarios in Westcoast, New Zealand
Farrukh Latif, Rob Ruiter, Collin Foster, Andrew Austin, Nirmal Nair, Liam Wotherspoon
Any contingency or recovery plan must have communication as one of its most critical supporting element. Therefore, to keep the communication network up and running becomes most vital in during and post-disaster scenarios, when the services are most needed for restoring other critical lifelines, due to inherent interdependencies, and for supporting emergency and relief management activities. In spite of the recognized critical importance, the assessment of the seismic performance for the telecommunication infrastructure is underrepresented in the literature. “The Resiliency of Communication infrastructure during Alpine fault 8 (AF8) earthquake scenarios in Westcoast, New Zealand” research project will bridge the gap.
This project is supported by the infrastructure toolbox of Resilience to Nature’s challenge (RNC) initiative and funded under the Electricity Distribution Resilience Framework informed by West Coast Alpine Fault Scenario.
This project will help to carry out the research on critical telecommunication infrastructure components to understand and:
1-Develop a seismic vulnerable model (using GIS tool) and quantify the risk (using fragility curves) to communication infrastructure during AF8 in Westcoast.
2-Develop a framework for resilient communication infrastructure for seismic hazards
3- Assess and advice the resilient network architecture against the major seismic event like AF8.
This research is being carried out in collaboration with Chorus New Zealand Ltd which will provide the necessary data and information deemed important
The Resiliency of Communication Infrastruture During (AF8) Earthquake Scenarios in West Coast, NZ
No full textThe Resiliency of Communication infrastructure during Alpine fault 8 (AF8)
Earthquake scenarios in Westcoast, New Zealand
Farrukh Latif, Rob Ruiter, Collin Foster, Andrew Austin, Nirmal Nair, Liam Wotherspoon
Any contingency or recovery plan must have communication as one of its most critical supporting element. Therefore, to keep the communication network up and running becomes most vital in during and post-disaster scenarios, when the services are most needed for restoring other critical lifelines, due to inherent interdependencies, and for supporting emergency and relief management activities. In spite of the recognized critical importance, the assessment of the seismic performance for the telecommunication infrastructure is underrepresented in the literature. “The Resiliency of Communication infrastructure during Alpine fault 8 (AF8) earthquake scenarios in Westcoast, New Zealand” research project will bridge the gap.
This project is supported by the infrastructure toolbox of Resilience to Nature’s challenge (RNC) initiative and funded under the Electricity Distribution Resilience Framework informed by West Coast Alpine Fault Scenario.
This project will help to carry out the research on critical telecommunication infrastructure components to understand and:
1-Develop a seismic vulnerable model (using GIS tool) and quantify the risk (using fragility curves) to communication infrastructure during AF8 in Westcoast.
2-Develop a framework for resilient communication infrastructure for seismic hazards
3- Assess and advice the resilient network architecture against the major seismic event like AF8.
This research is being carried out in collaboration with Chorus New Zealand Ltd which will provide the necessary data and information deemed important
Project Triton : A study into delivering targeted information to an individual based on implicit and explicit data.
No full textThe World Wide Web is frequently seen as a source of knowledge, however much of this remains undiscovered by its users. In recent times, recommender systems (e.g. Digg and Last.fm) have attempted to bridge this gap, alerting users to previously untapped knowledge. As more socially oriented services appear on the Web (e.g. Facebook and MySpace), it has never been easier to obtain information pertaining to an individual’s interests. At present, solutions for automated data recommendation tend to be highly topic specific (recommending only a certain topic such as news) and often only allow access to the system using monolithic interfaces. This report hopes to detail the stages from research to evaluation involved in creating an extensible framework, which will operate without the need for human intervention. The framework will feature several proof-of-concept plugins residing in a custom workflow, which target information that is useful to the user. Information will be retrieved automatically through plugins involved with data gathering (such as feed processing and page scraping), while users’ interests will be obtained implicitly (for example, using header information to derive location) or explicitly (taking advantage of Social Network APIs such as Facebook Connect). Finally, Third Parties will be able to integrate the framework into their own solutions using the customisable XML API (written in PHP), so that their products can provide custom user interfaces without style constraints
Seismic Performance of Transportation Hubs in New Zealand: Evaluation of Seismic Performance and Network exposure and vulnerability with New Seismic Hazard Scenarios
No full textThis thesis presents a broad overview of historically significant landslides both in New Zealand and internationally. A broad, high-level overview aims to assess gaps in our current understanding of the performance of transportation hubs.
An overview of 5 historical earthquakes was outlined as part of the literature review component of this thesis. Of the five scenarios explored, the 1994 Northridge earthquake, 1995 Kobe Earthquake, 2011 Tohoku Earthquake, 2010-2011 Canterbury Earthquake Sequence, and the 2016 Kaikoura Earthquake. Each scenario explored the seismic demand on the transportation infrastructure asset and the consequence and economic loss to the community.
Transportation hub databases were then collated and compiled. In assets without public data, manual digitisation was undertaken and assigned with known information from the internet. To understand the seismic demand on the transportation hubs in past earthquakes, geospatial platforms were deployed to assess the exposure and vulnerability of the transportation hubs. An assumed seismic design load was assigned to each transport hub based on its location or hazard factor (Z) and is then evaluated against historical earthquake scenarios to assess the performance of the current building design guide.
A comparison of the seismic demand from the National Seismic Hazard Model (NSHM) and CyberShake to infer the distribution on vulnerable hubs suggested that the seismic performance using the existing NZS 1170.5 has been generally good across most events explored. Similar vulnerability assessments were undertaken with new fault seismic scenarios from the new National Seismic Hazard Model. The majority of the seismic demand yielded from the scenario does not exceed the assumed design load; faults found closer to dense urban centres are more likely to observe seismic demand that may exceed the design load
In-situ Characterization of New Zealand Bridges
No full textThis research investigated the in-situ behaviour of reinforced concrete bridges and components
that are typical to New Zealand bridge stock based on experimental and numerical modelling
approaches. The behaviour at the component level was characterized by performing field testing
on two separate reinforced concrete bridge pile foundations and developing numerical models
accounting for nonlinear soil response, soil gapping, and material nonlinearities. Piles with
smooth reinforcement tested under cyclic loading were able to maintain their strength through
large displacements and multiple cycles. Numerical models showed bond-slip implementation
improved the representation of the global cyclic response of the pile-soil system with smooth
reinforcement, but this difference was not as significant as that seen for other structural elements
with smooth reinforcement. Monotonic loading and dynamic snapback testing of piles with
deformed reinforcement demonstrated how loading history and magnitude influenced system
damping and the varying contributions of different energy dissipation mechanisms. Bridge pier
response was characterized by analysing the response of an in-service bridge pier during
multiple earthquakes and developing their numerical models. The fundamental period of the
bridge pier varied significantly during these earthquakes due to system softening. A sensitivity
analysis on the effect of input ground motions highlighted the importance of accounting for
ground motion spatial variability and the difficulties involved in post-earthquake back-analysis.
There was a significant system softening observed prior to the onset of any structural damage
across all these examples, with numerical models demonstrating the importance of including
soil and gapping. Sensitivity analyses showed the influence of concrete strength and the top soil
layers on the static response of pile-soil systems and the dynamic response of bridge pier. This
research improved the understanding of in-situ behavior of reinforced concrete bridges through
the field test and monitored data, and suggested modelling approaches that can effectively
capture the response of bridge pile foundations and piers similar to the ones studied under
different loading conditions
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