A photograph of people gathered in Cathedral Square during the Meet the Puppets event, as part of FESTA 2013. The puppets (including The Scholar, left, 'Wife of Bath, centre, and The Knight, right) were created by Free Theatre Christchurch, for Canterbury Tales, which was the main event of FESTA 2013.
A photograph of the public launch event for The Wet Issue by Freerange Press. The attendees are watching a water-inspired visual and sonic artwork by Olivia Webb and Noel Meek. The event was held at Space Academy as part of FESTA 2014.
A photograph of people gathered in Cathedral Square during the Meet the Puppets event, as part of FESTA 2013. The puppets (including The Scholar, left, 'Wife of Bath, centre, and The Knight, right) were created by Free Theatre Christchurch, for Canterbury Tales, which was the main event of FESTA 2013.
An overview of the 22 February 2011 Christchurch earthquake is presented in the context of characterization of extreme/rare events. Focus is given to the earthquake source, observed near-source strong ground motions, and effects of site response, while structural response and consequences are mentioned for completeness. For each of the above topics comparisons and discussions are made with predictive models for each of phenomena considered. In light of the observations and predictive model comparisons, the author’s opinion on improving the characterization of such extreme/rare events, and their appropriate consideration in seismic design is presented
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Prediction of building collapse due to significant seismic motion is a principle objective of earthquake engineers, particularly after a major seismic event when the structure is damaged and decisions may need to be made rapidly concerning the safe occupation of a building or surrounding areas. Traditional model-based pushover analyses are effective, but only if the structural properties are well understood, which is not the case after an event when that information is most useful. This paper combines hysteresis loop analysis (HLA) structural health monitoring (SHM) and incremental dynamic analysis (IDA) methods to identify and then analyse collapse capacity and the probability of collapse for a specific structure, at any time, a range of earthquake excitations to ensure robustness. This nonlinear dynamic analysis enables constant updating of building performance predictions following a given and subsequent earthquake events, which can result in difficult to identify deterioration of structural components and their resulting capacity, all of which is far more difficult using static pushover analysis. The combined methods and analysis provide near real-time updating of the collapse fragility curves as events progress, thus quantifying the change of collapse probability or seismic induced losses very soon after an earthquake for decision-making. Thus, this combination of methods enables a novel, higher-resolution analysis of risk that was not previously available. The methods are not computationally expensive and there is no requirement for a validated numerical model, thus providing a relatively simpler means of assessing collapse probability immediately post-event when such speed can provide better information for critical decision-making. Finally, the results also show a clear need to extend the area of SHM toward creating improved predictive models for analysis of subsequent events, where the Christchurch series of 2010–2011 had significant post-event aftershocks.
A man playing the guitar at a Gap Filler event in Sydenham.
People arriving at the YMCA Carols by Candlelight event in Latimer Square.
The crowd at the YMCA Carols by Candlelight event in Latimer Square.
The crowd at the YMCA Carols by Candlelight event in Latimer Square.
The crowd at the YMCA Carols by Candlelight event in Latimer Square.
The crowd at the YMCA Carols by Candlelight event in Latimer Square.
April and Erin at an event to thank the Student Volunteer Army.
The crowd at the YMCA Carols by Candlelight event in Latimer Square.
A video montage of LUXCITY, a city of lights that existed for one night on Saturday 20 October 2012. LUXCITY was the main event of FESTA 2012 and included 16 interactive installations, designed and fabricated by architecture and design students from across New Zealand. The film depicts the construction and set up, through to the public event on Saturday night.
A photograph of people gathered around Julia Morison's public sculpture, titled Tree Houses for Swamp Dwellers, during the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work and took place on site.
A photograph of people gathered around Julia Morison's public sculpture, titled Tree Houses for Swamp Dwellers, during the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work and took place on site.
A photograph of Emma Johnson giving a speech at the public launch event for The Wet Issue by Freerange Press. The event was held at Space Academy as part of FESTA 2014. It was accompanied by a water-inspired visual and sonic artwork by Olivia Webb and Noel Meek.
A photograph of artist Noel Meek giving a speech at the public launch event for The Wet Issue by Freerange Press. The event was held at Space Academy as part of FESTA 2014. It was accompanied by a water-inspired visual and sonic artwork by Olivia Webb and Noel Meek.
A photograph of artist Julia Morison talking to another woman at the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work Tree Houses for Swamp Dwellers and took place on the site of the artwork.
A photograph of FESTA director Jessica Halliday (left) and artist Julia Morison at the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work Tree Houses for Swamp Dwellers and took place on the site of the artwork.
A photograph of FESTA director Jessica Halliday (left) and artist Julia Morison at the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work Tree Houses for Swamp Dwellers and took place on the site of the artwork.
A photograph of artist Noel Meek behind the sound desk at the public launch event for The Wet Issue by Freerange Press. The event was held at Space Academy as part of FESTA 2014. It was accompanied by a water-inspired visual and sonic artwork by Olivia Webb and Noel Meek.
A photograph of a parent holding a young child. She has just posted a post-it note on a noticeboard titled "What do you do that makes your family happy?" at the Celebrating Communities event in August 2015. The event was part of the All Right? mental health campaign of the CDHB.
A photograph of staff member Vaea Hutchen from the All Right? mental health campaign of the CDHB leading a group of women in a Māori action song. The photograph was taken at an event for Canterbury migrants in 2015. The event was organised by the Canterbury Migrants Centre (formerly the Christchurch Migrants Centre).
A photograph of staff member Vaea Hutchen from the All Right? mental health campaign of the CDHB setting up a table of brochures and materials from the campaign. The photograph was taken at event for Canterbury migrants in 2015. The event was organised by the Canterbury Migrants Centre (formerly the Christchurch Migrants Centre).
A photograph of artist Julia Morison at the event Small Rooms for Open Spaces, which was part of FESTA 2013. The event was an opportunity for the public to hear more about Morison's work Tree Houses for Swamp Dwellers and took place on the site of the artwork.
A photograph of someone reading a copy of The Wet Issue by Freerange Press, at the public launch event. The event was held at Space Academy as part of FESTA 2014. It was accompanied by a water-inspired visual and sonic artwork by Olivia Webb and Noel Meek.
A page banner promoting an article about a GapFiller event in Lyttelton.
A map showing the temporary Event Hub to be built in Hagley Park.
A banner for Ellerslie Internation Flower Show on the fence around the event,