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Images for gap; more images...

Images, UC QuakeStudies

A car drives across the damaged Dallington bridge. The bridge has visibly moved relative to the road, leaving a large gap, which road cones have been placed in. The photographer comments, "Service pipes snapped as the land sank but the bridge remained".

Images, UC QuakeStudies

A car drives onto the damaged Dallington bridge. The bridge has visibly moved relative to the road, there is a large gap at the side of the bridge, and the railings are warped. The photographer comments, "Dallington Bridge northern approach, Gayhurst Rd".

Images, UC QuakeStudies

A car drives across the damaged Dallington bridge. The bridge has visibly moved relative to the road, leaving a large gap, which road cones have been placed in. The photographer comments, "Service pipes snapped as the land sank but the bridge remained".

Images, UC QuakeStudies

A man takes a photograph of the damaged Dallington bridge. The bridge has visibly moved relative to the road, there is a large gap at the side of the bridge, and the railings are warped. The photographer comments, "Dallington Bridge, north side".

Research papers, University of Canterbury Library

A linear and non-linear model are developed to analyze the structural impact and response of two single degree of freedom structures, representing adjacent buildings or bridge sections. Different impact coefficients of restitution, normalized distances between structures and a range of different structural periods are considered. The probability of impact and the displacement changes that can result from these collisions are computed. The likelihood of an increase in displacement is quantified in a probabilistic sense. A full matrix of response simulations are performed to individually investigate and delineate the effects of inter-structure gap-ratio, period ratios, structural non-linearity and impact elasticity. Column inelasticity is incorporated through the use of a Ramberg-Osgood type hysteresis rule. The minimum normalized distance, or gap-ratio, required between two structures to ensure that the likelihood of increased displacement of more than 10% for either structure for 90% of the given earthquake ground motions is assessed as one of many possible design risk bounds. Increased gap ratio, defined as a percentage of spectral displacement, is shown to reduce the likelihood of impact, as well as close structural periods. Larger differences in the relative periods of the two structures were seen to significantly increase the likelihood of impact. Inclusion of column inelasticity and higher plasticity of impact reduce displacement increases from impact and thus possible further damage to the structures. Such information can be used as a guideline to manage undesirable effects of impact in design - a factor that has been observed to be very important during the recent Canterbury, New Zealand Earthquakes.

Images, UC QuakeStudies

A photograph of an installation on the corner of Manchester Street and Worcester Street. The installation is titled "Archrobatics", and is part of the LUXCITY event.

Images, UC QuakeStudies

A blackboard announcing live music on Saturdays at the Lyttelton Petanque Club, a Gap Filler project in the empty site of the Ground Culinary Centre. In the distance, the Port Hole can be seen, a temporary bar made out of shipping containers where the Volcano Cafe used to be.

Images, UC QuakeStudies

Demolition site and street art on a wall on Colombo Street, Sydenham. The work on the left is a Gap Filler project, Wayne Youle's "I seem to have temporarily misplaced my sense of humour " (2011), a shadow-board mural which depicts things lost during the earthquake.

Images, UC QuakeStudies

Member of the public using the Dance-O-Mat, a dance floor on a vacant site with coin operated light and music player. This was a project by Gap Filler who wanted to give the Christchurch community a unique dance experience whilst bringing life to our broken city.