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Research papers, The University of Auckland Library

The Canterbury earthquake series of 2010/2011 has turned the city of Christchurch into a full scale natural laboratory testing the structural and non-structural response of buildings under moderate to very severe earthquake shaking. The lessons learned from this, which have come at great cost socially and economically, are extremely valuable in increasing our understanding of whole building performance in severe earthquakes. Given current initiatives underway on both sides of the Tasman towards developing joint Australasian steel and composite steel/concrete design and construction standards that would span a very wide range of geological conditions and seismic zones, these lessons are relevant to both countries. This paper focusses on the performance of steel framed buildings in Christchurch city, with greatest emphasis on multi-storey buildings, but also covering single storey steel framed buildings and light steel framed housing. It addresses such issues as the magnitude and structural impact of the earthquake series, importance of good detailing, lack of observed column base hinging, the excellent performance of composite floors and it will briefly cover research underway to quantify some of these effects for use in design.

Images, UC QuakeStudies

A photograph of the Durham Street Methodist Church. The parapet at the tip of the front gable has come loose and is leaning towards the road. Steel bracing has been placed behind the parapet to keep it from toppling.

Images, UC QuakeStudies

A photograph of the Carlton Hotel on the corner of Papanui Road and Bealey Avenue. The top storey of the building's walls have crumbled, the bricks spilling onto the street below. Steel bracing has been placed against the building to the left.

Images, UC QuakeStudies

A photograph of signs under the rear section of the Forsyth Barr building. The signs reads, "Danger drop zone". In the background is rubble from an earthquake-damaged building . Steel bracing has been constructed around a concrete pillar to the right.

Images, UC QuakeStudies

A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade. A large pile of rubble from the partially-demolished tower can be see to the left.

Images, UC QuakeStudies

A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade. A large pile of rubble from the partially-demolished tower can be see to the left.

Images, UC QuakeStudies

A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade. A large pile of rubble from the partially-demolished tower can be see to the left.

Images, UC QuakeStudies

A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade. A large pile of rubble from the partially-demolished tower can be see to the left.