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Research papers, The University of Auckland Library

This paper presents preliminary field observations on the performance of selected steel structures in Christchurch during the earthquake series of 2010 to 2011. This comprises 6 damaging earthquakes, on 4 September and 26 December 2010, February 22, June 6 and two on June 13, 2011. Most notable of these was the 4 September event, at Ms7.1 and MM7 (MM as observed in the Christchurch CBD) and most intense was the 22 February event at Ms6.3 and MM9-10 within the CBD. Focus is on performance of concentrically braced frames, eccentrically braced frames, moment resisting frames and industrial storage racks. With a few notable exceptions, steel structures performed well during this earthquake series, to the extent that inelastic deformations were less than what would have been expected given the severity of the recorded strong motions. Some hypotheses are formulated to explain this satisfactory performance. http://db.nzsee.org.nz/SpecialIssue/44%284%290297.pdf

Images, UC QuakeStudies

A photograph taken from Manchester Street of the earthquake-damaged Strange's Building. The third storeys walls have crumbled leaving the inside of the building exposed. People can be seen walking along the street after evacuating their buildings during the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of the earthquake-damaged Tower Chambers building on the corner of Lichfield and High Streets. The front of the building has completely collapsed. A crowd of people have gathered in front after evacuating their buildings during the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Domo furniture store on Tuam Street taken shortly after the 22 February 2011 earthquake. A group of people can be seen walking past the Alice in Videoland building to the right.

Images, UC QuakeStudies

A photograph of a crushed car under the rubble from the earthquake damaged Cycle Trading store on Manchester Street. The store's main window has been broken and the doors left open. The photograph was taken shortly after the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of a rubble from the earthquake damaged Cycle Trading store on Manchester Street taken shortly after the 22 February 2011 earthquake. A cars headlights can be seen through the rubble. The store's main window has been broken and the doors left open.

Images, UC QuakeStudies

A photograph of a crushed car under the rubble from the earthquake damaged Cycle Trading store on Manchester Street. The store's main window has been broken and the doors left open. The photograph was taken shortly after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence reacting to an aftershock during a briefing in the Christchurch Art Gallery a few hours after the 22 February 2011 earthquake. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

A member of ECan briefing members of Civil Defence in the Christchurch Art Gallery a few hours after the 22 February 2011 earthquake. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of Civil Defence reacting to an aftershock during a briefing in the Christchurch Art Gallery a few hours after the 22 February 2011 earthquake. The Christchurch Art Gallery served as the headquarters for Civil Defence after the 22 February 2011 earthquake.

Images, UC QuakeStudies

The damaged Provincial Council Legislative Chamber on Durham Street in the aftermath of the 22 February 2011 earthquake. The building's roof and walls have collapsed, as has the scaffolding which was erected to repair it after the 4 September 2010 earthquake.

Images, UC QuakeStudies

The damaged Provincial Council Legislative Chamber on Durham Street in the aftermath of the 22 February 2011 earthquake. The building's roof and walls have collapsed, as has the scaffolding which was erected to repair it after the 4 September 2010 earthquake.