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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Evacuating a central city flat which has been condemned following the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Cordon at the Tuam Street - Madras Street intersection, following the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Parapet and roof of this building collapsed during the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

Parapet and roof of this building collapsed during the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

This shop on Tuam Street survived rhe magnitude 7.1 earthquake that hit Christchurch on Saturday 4 September 2010.

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Images, eqnz.chch.2010

Crack in the parapet of this building, resulting from the magnitude 7,1 earthquake that struck Christchurch on 4 September 2010.

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Images, eqnz.chch.2010

Parapet and roof of this building collapsed during the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

Observed performance of residential masonry veneer construction in the 201…

Research papers, The University of Auckland Library

Following the 2010/2011 Canterbury, New Zealand earthquakes, a detailed door-to-door survey was conducted in the Christchurch region to establish the earthquake performance of lightweight timber-framed residential dwellings with a masonry veneer external cladding system. The post-earthquake survey involved documenting the condition of dwellings in areas that had experienced different levels of earthquake shaking, allowing comparison between the performance of different veneer systems and different shaking intensities. In total, just fewer than 1,100 residential dwellings were inspected throughout the wider Christchurch area. The survey included parameters such as level of veneer damage, type of veneer damage, observed crack widths, and level of repair required. It is concluded that based on observed earthquake performance at the shaking intensities matching or exceeding ultimate limit state loading, the post-1996 veneer fixing details performed satisfactorily and continued use of the detail is recommended without further modification. AM - Accepted Manuscript

Shake-table testing of hybrid post-tensioned precast wall systems with alt…

Research papers, University of Canterbury Library

It is fast becoming common practice for civil engineering infrastructure and building structures to be designed to achieve a set of performance objectives. To do so, consideration is now being given to systems capable of sustaining minimal damage after an earthquake while still being cost competitive. This has led to the development of high performance seismic resisting systems, followed by advances in design methodologies. The paper presents the experimental response of four pre-cast, post-tensioned rocking walls with high-performing dissipating solutions tested on the shake-table at the University of Canterbury. The wall systems were designed as a retrofit solution for an existing frame building however, can also be used for the design of new, high-performance structures. The use of externally mounted dampers allowed numerous dissipation schemes to be explored including mild-steel dampers (hysteretic dampers), viscous dampers, a combination of both or no dampers. The advantages of both velocity and displacement dependant dissipation was investigated for protection against strong ground motions with differing rupture characteristics i.e. far-field and near-field events. The experimental results are used to verify a proposed design procedure for post-tensioned rocking systems with supplementary hysteretic and viscous dissipation. The predicted response compared well with the measured shake-table response.

Banks Avenue, Richmond - Photograph 05

Images, UC QuakeStudies

A pile of gravel and tarseal in front of a house in Richmond. The photographer comments, "River Rd repairs. We weren't living in our house, we'd moved out after the September 2010 shake".

Human response to earthquake shaking: Analysis of video footage of the 201…

Research papers, University of Canterbury Library

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Images, eqnz.chch.2010

I could have sworn the street lamposts were vertical on Friday 3 September 2010! Magnitude 7 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

I could have sworn the street lamposts were vertical on Friday 3 September 2010! Magnitude 7 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

I could have sworn the street lamposts were vertical on Friday 3 September 2010! Magnitude 7 earthquake in Christchurch on Saturday 4-9-2010.

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Images, eqnz.chch.2010

Shop parapet toppled in the magnitude 7 earthquake in Christchurch on Saturday 4-9-2010. This building was condemned and demolished on 9 September 2010.