Search

found 526 results

Images for rock; more images...

Images, UC QuakeStudies

A digitally manipulated image of a poster advertising a performance in New Brighton by bands Mynor Star, Reflekshun and Loaded Victim. The photographer comments, "The Bar 25 had this night of rock on the 18 December 2011, but the earthquake on December 23 just off of the coast close by got it shut down".

Images, Alexander Turnbull Library

A cheerful old woman sits with a cup of tea on her sofa watching television with an enormous boulder beside her. She says 'Big and solid it reminded me of my late husband but then I realized that in two weeks it hasn't once broken wind, belched or called for a beer, or gone and changed the channel and I think I'm in love!' The little Evans man says 'Stone me!' Context - The Christchurch earthquake of 22 February 2011. Some people remain cheerful and optimistic in spite of dreadfully difficult conditions. Colour and black and white versions available Quantity: 2 digital cartoon(s).

Images, UC QuakeStudies

A photograph of students enjoying Rock on Eastside, an outdoor lounge and art space on the corner of Aldwins Road and Linwood Avenue. The students have decorated the site by painting rocks they found throughout Christchurch and laying them out in patterns. There is also furniture made out of pallets in the background and 'Rock on Eastside' has been painted on the wall of a building.

Images, UC QuakeStudies

A photograph of students enjoying Rock on Eastside, an outdoor lounge and art space on the corner of Aldwins Road and Linwood Avenue. The students have decorated the site by painting rocks they found throughout Christchurch and laying them out in patterns.

Images, UC QuakeStudies

A photograph of a sofa made out of car tyres and a pallet at Rock on Eastside on the corner of Aldwins Road and Linwood Avenue. Rock on Eastside was a outdoor lounge and art space facilitated by Gap Filler and Youthtown. The sofa was made by students from the University of Canterbury Student Volunteer Army. Painted rocks have been placed in front of the sofa as decoration.

Research papers, The University of Auckland Library

Observations in major earthquakes have shown that rockable structures suffered less to no damage. During rocking, that is, partial and temporary footing separations, the influx of seismic energy is interrupted and thus the impact of the base excitation is reduced. Rocking causes the structure to deform more rigid like. Consequently, the structure experiences less deformation along the height and thus a lower damage potential. Although many researchers have studied the influence of rockable footings, most of these are either analytical or numerical, and only a very few structures have been built with rockable footings worldwide, for example, the chimney at Christchurch Airport and the South Rangitikei Viaduct in New Zealand. Despite these studies, a thorough and understanding is not yet available, especially with respect to experimental validations. This work is the first to investigate the rocking behaviour of bridges with different slenderness using large‐scale shake table experiments. To limit the number of influence factors, a stiff footing support and the same fixed‐base fundamental frequency of the bridges were assumed. The result shows that the girder displacement and the footing rotation of the tall bridge do not always move in phase, which cannot be observed in the short bridge. The results demonstrate the important role of slenderness in the overall responses of rockable bridges. This behaviour cannot be observed in bridges with a commonly assumed fixed base since the slenderness effect cannot be activated.