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Research papers, The University of Auckland Library

Having a quick but reliable insight into the likelihood of damage to bridges immediately after an earthquake is an important concern especially in the earthquake prone countries such as New Zealand for ensuring emergency transportation network operations. A set of primary indicators necessary to perform damage likelihood assessment are ground motion parameters such as peak ground acceleration (PGA) at each bridge site. Organizations, such as GNS in New Zealand, record these parameters using distributed arrays of sensors. The challenge is that those sensors are not installed at, or close to, bridge sites and so bridge site specific data are not readily available. This study proposes a method to predict ground motion parameters for each bridge site based on remote seismic array recordings. Because of the existing abundant source of data related to two recent strong earthquakes that occurred in 2010 and 2011 and their aftershocks, the city of Christchurch is considered to develop and examine the method. Artificial neural networks have been considered for this research. Accelerations recorded by the GeoNet seismic array were considered to develop a functional relationship enabling the prediction of PGAs. http://www.nzsee.org.nz/db/2013/Posters.htm

Images, UC QuakeStudies

A photograph of the badly-damaged Octagon Live Restaurant on the corner of Worcester and Manchester Streets. The masonry around the gable has crumbled, falling onto the footpath in front. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "The church of St Michaels and All Angels is undamaged after the two earthquakes. The pipe organ suffered significant but reparable damage. This church is now the only operational church within the city centre".

Images, UC QuakeStudies

The Arts Centre on Worcester Boulevard with damage to the gables. Wire fencing has been placed around the building as a cordon. In the distance, steel bracing has been placed against the front of the building to hold the walls together.

Images, UC QuakeStudies

Damage to the Fuze Restaurant and Bar on the corner of Oxford Street and Norwich Quay. The top of the building facade has crumbled into the street below and wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

A photograph of the Cranmer Courts on the corner of Kilmore and Montreal Streets. One of the gables has crumbled and ties have been placed around the rest to limit further damage from aftershocks. Pigeons are roosting on the edge.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Base Packpackers building behind the former Canterbury Times building on Gloucester Street. The corner of Base Backpackers has collapsed, exposing a bunkroom inside. Scaffolding has been constructed up the side of the building.

Images, UC QuakeStudies

A photograph of Pretty Things on Colombo Street, with damage to the front wall, and road cones, tape and fencing around the building. A red sticker can be seen on the front door, indicating that the building is unsafe to enter.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Christchurch Chinese Methodist Church on Papanui Road. The wall of the gable has crumbled, the bricks spilling onto the lawn below. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Christchurch Chinese Methodist Church on Papanui Road. The gable wall has crumbled, the bricks and window frame falling onto the ground. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

A photograph of the earthquake damage to South of the Border, Denis Moore the Auto Electrician and Himalayas Indian restaurant on Colombo Street. Wire fencing, road cones and Civil Defence tape have been placed around the buildings as a cordon.

Images, UC QuakeStudies

A photograph of a cordon across Victoria Street at the intersection with Salisbury Street. Damage to shops on both sides of the road can be seen. An excavator is parked on the left side of the road near the cordon fence.

Images, UC QuakeStudies

A photograph of signs under the rear section of the Forsyth Barr building. The signs reads, "Danger drop zone". In the background is rubble from an earthquake-damaged building . Steel bracing has been constructed around a concrete pillar to the right.

Images, UC QuakeStudies

A photograph of an excavator clearing rubble from several earthquake-damaged buildings on Manchester Street. In the foreground a member of an emergency management team is watching on. Several other emergency management personnel can also be seen in the distance.

Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office Emergency Response Team and the Red Cross, standing on the corner of Lichfield and High Streets. In the background large piles of rubble from earthquake-damaged buildings line the street.

Images, UC QuakeStudies

A photograph of the earthquake damage to The Painted Room on Colombo Street. The ceiling of the building has collapsed into the store, smashing the front window. Wire fencing and police tape has been placed around the building as a cordon.

Images, UC QuakeStudies

The Arts Centre on Worcester Boulevard with damage to the gables. Wire fencing has been placed around the building as a cordon. In the distance, steel bracing has been placed against the front of the building to hold the walls together.