University of Auckland Centre for Earthquake Engineering Research


Assessment of structures

Developing strategies, tools and technologies for a quick post-earthquake assessment of structural damage. Data collected by monitoring systems of a large number of earthquakes in New Zealand will be used.

 
 

Bridge seismic assessment


L Wotherspoon, Beskhyroun

In New Zealand there is a shift towards the design of integral bridges, with the retrofit of existing bridges tying components together into an effective integral system. In these configurations the interaction between the bridge structure and the surrounding soil becomes more significant, and a better understanding of this soil-foundation structure interaction (SFSI) is needed. The research focuses on the following:
Characterisation of the New Zealand bridge stock
Forced and ambient vibration of in service representative bridges to understand the response of the soil-foundation-structure (SFS) system
Development of computational SFS models to capture test response
Extension of SFS models to non-linear analysis and comparison with typical NZ simplified design approaches.

 
 

Post-earthquake assessment of bridge condition and damage using monitoring data


P Omenzetter, R Orense, T Henning

This research will develop strategies, tools and technologies that will enable quick post-earthquake assessment of bridge damage, condition and performance using data collected by monitoring systems. The specific objectives are:
Developing strategies that will prioritize bridges for application of quick assessment and sensing technologies. This will take into account bridge criticality in the network and seismic risks including structural and geological risks. Those risk models will be calibrated using any available data from the Christchurch earthquakes.
Developing methodologies for integrating existing free field seismic data (from sources such as Geonet) for bridge condition and damage assessment including structural and geotechnical aspects such as liquefaction.
Developing guidelines for bridge specific instrumentation and methodologies for quick condition and damage assessment including structural and geotechnical aspects such as liquefaction. The focus will be on optimal instrumentation and simple measurements, such as accelerations and tilts, which can be quickly interpreted. Developing a framework for integration of free field data and bridge monitoring data.

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Building quake and people – A serious game platform for informing life saving strategies

V Gonzalez, J Thomas (Opus), R Amor, K More (Opus), M Spearpoint, R Lovreglio

This project contributes to the mitigation of the impact of natural hazards by proposing the development of a computer-based modelling framework able to assess occupants’ behaviour in buildings in the event of an earthquake. This framework combines Serious Games, Virtual Reality-based BIM models, Agent Based Modelling and Non-Structural Damage models such as fragility functions.