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Images, UC QuakeStudies

A photograph submitted by Caroline Oliver to the QuakeStories website. The description reads, "Demoilition of one of the 2 damaged chimneys, Cashmere hills 1920 weatherboard house, in March 2011.".

Images, UC QuakeStudies

A photograph submitted by Caroline Oliver to the QuakeStories website. The description reads, "Demoilition of one of the 2 damaged chimneys, Cashmere hills 1920 weatherboard house, in March 2011.".

Images, UC QuakeStudies

A photograph submitted by Caroline Oliver to the QuakeStories website. The description reads, "Demoilition of one of the 2 damaged chimneys, Cashmere hills 1920 weatherboard house, in March 2011.".

Images, UC QuakeStudies

A photograph submitted by Caroline Oliver to the QuakeStories website. The description reads, "Demoilition of one of the 2 damaged chimneys, Cashmere hills 1920 weatherboard house, in March 2011.".

Images, UC QuakeStudies

A photograph submitted by Caroline Oliver to the QuakeStories website. The description reads, "Demoilition of one of the 2 damaged chimneys, Cashmere hills 1920 weatherboard house, in March 2011.".

Images, UC QuakeStudies

A photograph submitted by Grant Fife to the QuakeStories website. The description reads, "September Quake. Cranmer Court apartments 05/09/2010. The building is quickly supported while damaged chimneys are removed.".

Images, UC QuakeStudies

A photograph submitted by Tim Kerr to the QuakeStories website. The description reads, "I had assured Lois that we would be safe from falling chimneys about 3 weeks before the September Quake..".

Images, UC QuakeStudies

A house on Acland Avenue in Avonside that has been abandoned due to damage from the 4 September 2010 earthquake. The house's front garden has become overgrown and weeds have grown up through the cracks in its driveway. Its chimneys have collapsed and have been weather proofed with tarpaulins.

Images, UC QuakeStudies

A crane beside the boiler chimney in the University of Canterbury's Facilities Management yard. The photographer comments, "The University restarts its teaching, and the techies in e-learning move out of NZi3. Inspection and repairs to the University's boiler system. It's getting cooler, we'll need heat soon - but we need accessible buildings first".

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.