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Images for design; more images...

Research papers, University of Canterbury Library

During the past two decades, the focus has been on the need to provide communities with structures that undergo minimal damage after an earthquake event while still being cost competitive. This has led to the development of high performance seismic resisting systems, and advances in design methodologies, in order respect this demand efficiently. This paper presents the experimental response of four pre-cast, post-tensioned rocking wall systems tested on the shake-table at the University of Canterbury. The wall systems were designed as a retrofit solution for an existing frame building, but are equally applicable for use in new design. Design of the wall followed a performance-based retrofit strategy in which structural limit states appropriate to both the post-tensioned wall and the existing building were considered. Dissipation for each of the four post-tensioned walls was provided via externally mounted devices, located in parallel to post-tensioned tendons for re-centring. This allowed the dissipation devices to be easily replaced or inspected following a major earthquake. Each wall was installed with viscous fluid dampers, tension-compression yielding steel dampers, a combination of both or no devices at all – thus relying on contact damping alone. The effectiveness of both velocity and displacement dependant dissipation are investigated for protection against far-field and velocity-pulse ground motion characteristics. The experimental results validate the behaviour of ‘Advanced Flag-Shape’ rocking, dissipating solutions which have been recently proposed and numerically tested. Maximum displacements and material strains were well controlled and within acceptable bounds, and residual deformations were minimal due to the re-centring contribution from the post-tensioned tendons. Damage was confined to inelastic yielding (or fluid damping) of the external dampers.

Images, UC QuakeStudies

An image designed for use as a downloadable screensaver. The image depicts two 'All Righties' harvesting a pumpkin and carrots. The image reads, "What good things are you growing? Wonderful things happen when you put in a little bit of time".

Images, UC QuakeStudies

An image designed for use as a downloadable screensaver. The image depicts two 'All Righties' knitting on a couch. The image reads, "When did you last share your hidden talents? Everyone wins when we pass on our skills and passions".

Images, UC QuakeStudies

An image designed for use as a downloadable screensaver. The image depicts two 'All Righties' carrying a couch together. The image reads, "Shown a mate you care lately? Often the little things mean the most to our family and friends".

Images, UC QuakeStudies

An image designed for use as a banner. The image reads, "Shaken, stirred and still standing strong! Kia ora Canterbury". The image is from All Right's 'Compliments' project. For more information, see 'All Right? Compliments': https://quakestudies.canterbury.ac.nz/store/collection/972

Images, UC QuakeStudies

An image designed for use as a downloadable screensaver. The image depicts a family of 'All Righties' sharing some kai. The image reads, "When did you last share kai with the whānau? Good food tastes even better with the ones we love".

Images, Canterbury Museum

White ceramic vase with bulbous body tapering to a smaller neck before flaring out to a wider entry. The body of the vase is partially scored with lines in a circular pattern with a circular design in centre. Makers mark and AK on bottom of vase. Vase is dirty.

Videos, UC QuakeStudies

A video about the preparation for the 2012 Ellerslie Flower Show in Hagley Park. The video includes interviews with Xiaohua Li, an Architecture and Landscape Design student at Lincoln University, Dave Mee, the Ellerslie Flower Show Managing Director, and Leona Murahidy.