Photograph by Paul Corliss 1566

Images, UC QuakeStudies

A photograph of the earthquake damage to a house on Major Hornbrook Drive. The chimney has collapsed and many of the tiles have been lifted on the roof. Tarpaulins have been laid over the holes in the roof as waterproofing, but the closest has shredded. Gaps can be seen between the bricks in the wall and the wall to the left has crumbled.

Natalie Kerschner WEMO Photograph 111

Images, UC QuakeStudies

A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.

Natalie Kerschner WEMO Photograph 106

Images, UC QuakeStudies

A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.

Natalie Kerschner WEMO Photograph 107

Images, UC QuakeStudies

A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.

Photograph by Paul Corliss 1567

Images, UC QuakeStudies

A photograph of the earthquake damage to a house on Major Hornbrook Drive. The chimney has collapsed and many of the tiles have been lifted on the roof. Tarpaulins have been laid over the holes in the roof as waterproofing, but the closest has shredded. Gaps can be seen between the bricks in the wall and the wall to the left has crumbled.

Kim Wright WEMO Photograph 017

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Courts on the corner of Montreal and Kilmore Streets. Two chimneys have been removed from the building and placed on the footpath in front. Various pieces of fallen masonry can also be seen on the footpath. Wire fencing and road cones have been placed around the building as a cordon.

Photograph by Paul Corliss 1565

Images, UC QuakeStudies

A photograph of the earthquake damage to a house on Major Hornbrook Drive. The chimney has collapsed and many of the tiles have been lifted on the roof. Tarpaulins have been laid over the holes in the roof as waterproofing, but the closest has shredded. Gaps can be seen between the bricks in the wall and the wall to the left has crumbled.

Natalie Kerschner WEMO Photograph 105

Images, UC QuakeStudies

A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.

BeckerFraserPhotos June 2011 photograph 369

Images, UC QuakeStudies

Damage to a house in Redcliffs. The chimney is still intact, but is leaning away from the house at an extreme angle, and concrete blocks have fallen from the walls.

QuakeStory Photo 278

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.".

Natalie Kerschner WEMO Photograph 109

Images, UC QuakeStudies

A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks. Spring flowers can be seen in the garden.

BeckerFraserPhotos June 2011 photograph 370

Images, UC QuakeStudies

Damage to a house in Redcliffs. There are large cracks in the concrete block walls and several blocks have fallen. The chimney is still intact, but is leaning away from the house at an extreme angle.

BeckerFraserPhotos June 2011 photograph 371

Images, UC QuakeStudies

Damage to a house in Redcliffs. There are large cracks in the concrete block walls and several blocks have fallen. The chimney is still intact, but is leaning away from the house at an extreme angle.

BeckerFraserPhotos February 2011 photograph 252

Images, UC QuakeStudies

An earthquake-damaged house on Acland Avenue in Avonside. Its chimneys have collapsed and have been weather proofed with tarpaulins. The overgrown garden suggests the house has been unoccupied since the 4 September 2010 earthquake.

Jim Baltaxe WEMO Photograph 037

Images, UC QuakeStudies

A photograph of a member of the New Zealand Army on the roof of an earthquake-damaged property in Christchurch. A tarpaulin has been placed over a hole in the roof caused by the collapsed chimney.

BeckerFraserPhotos June 2011 photograph 461

Images, UC QuakeStudies

Damage to a block of flats on the corner of Gayhurst Road and Locksley Avenue. A chimney has fallen, and tiles have shaken loose from the roof. In front of the property a low brick wall has collapsed.

BeckerFraserPhotos February 2011 photograph 334

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.

Experimental evaluation of the role of slenderness in seismic behaviour of…

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.