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Audio, Radio New Zealand

Christchurch Mayor Bob Parker, New standards for earthquake prone buildings in Christchurch, Some schools reopen, while others face permanent closure, PM says Defence Force's role to check CV, Plans to burn the Koran on hold not cancelled, Chances of magnitude aftershock hitting rapidly decreasing.

Images, UC QuakeStudies

A cordon check-point at the corner of Barbadoes and Lichfield Streets. In the foreground, a sign reading "Warrant of fitness", advertising a nearby automotive shop, leans against the "Road closed" sign. Behind the cordon, a soldier sleeps on top of the cab of an army truck.

Images, UC QuakeStudies

A team of Fire Service and Search and Rescue personnel using a crane to check the Forsyth Barr building for people trapped by the 22 February 2011 earthquake. A sign reading, "Help" has been stuck to a window in the floor below.

Audio, Radio New Zealand

A very large earthquake in the central North Island could trigger a big lahar from Mt Ruapehu. In the recent past it's been eruptions that have led to lahars on the mountain. But scientists from Canterbury University have checking what else might cause cause mud and debris to spew out of the crater lake.

Images, UC QuakeStudies

Emergency personnel using a crane to check the Forsyth Barr building for people trapped after the 22 February earthquake. On the intersection of Armagh Street and Colombo Street below, police and fire service personnel are gathered. The road below is severely warped.

Images, Alexander Turnbull Library

A large sign just outside Christchurch's Red Zone reads 'Christchurch RED ZONE - security staff and celebrities only'. A security guard phones through to Check Point One, saying 'Base to check point one - no shop keepers allowed but the queen, Fidel Castro, Tina Turner and Elvis are coming in'. These four people have formed a queue and are allowed to enter the Red Zone. Context - It is now three months past the earthquake of 19 February and shopkeepers and owners of small businesses are becoming very frustrated by the still limited access to the Red Zone business area. Colour and black and white versions available Quantity: 2 digital cartoon(s).

Videos, UC QuakeStudies

A video about the Christchurch central city in the days after the 4 September 2010 earthquake. The video includes footage of empty streets, and New Zealand Police and Army members guarding the cordons. It also includes footage of engineers checking the safety of buildings.

Images, UC QuakeStudies

A member of the Fire Service entering the Forsyth Barr building through a window in order to check for people trapped by the 22 February 2011 earthquake. A sign reading, "Help" has been stuck to one of the windows and a window above has already been broken by the team.

Images, UC QuakeStudies

A member of the Fire Service using an axe to break one of the Forsyth Barr building's windows in order to check for people trapped by the 22 February 2011 earthquake. A sign reading, "Help" has been stuck to one of the windows and a window above has already been broken by the team.

Images, UC QuakeStudies

A member of the Fire Service using an axe to break one of the Forsyth Barr building's windows in order to check for people trapped by the 22 February 2011 earthquake. A sign reading, "Help" has been stuck to one of the windows and a window above has already been broken by the team.

Images, UC QuakeStudies

Urban Search and Rescue personnel escorting construction workers down Colombo Street in the aftermath of the 22 February 2011 earthquake. Behind them a team of Fire Service and Urban Search and Rescue personnel can be seen using a crane to check the Forsyth Barr building for trapped people.

Images, UC QuakeStudies

Urban Search and Rescue personnel escorting construction workers down Colombo Street in the aftermath of the 22 February 2011 earthquake. Behind them a team of Fire Service and Urban Search and Rescue personnel can be seen using a crane to check the Forsyth Barr building for trapped people.

Images, UC QuakeStudies

A team of Fire Service and Search and Rescue personnel using a crane to check the Forsyth Barr building for people trapped by the 22 February 2011 earthquake. A sign reading, "Help" has been stuck to one of the windows and a window above has already been broken by the team.

Research papers, University of Canterbury Library

Earthquake Engineering is facing an extraordinarily challenging era, the ultimate target being set at increasingly higher levels by the demanding expectations of our modern society. The renewed challenge is to be able to provide low-cost, thus more widely affordable, high-seismic-performance structures capable of sustaining a design level earthquake with limited or negligible damage, minimum disruption of business (downtime) or, in more general terms, controllable socio-economical losses. The Canterbury earthquakes sequence in 2010-2011 has represented a tough reality check, confirming the current mismatch between societal expectations over the reality of seismic performance of modern buildings. In general, albeit with some unfortunate exceptions, modern multi-storey buildings performed as expected from a technical point of view, in particular when considering the intensity of the shaking (higher than new code design) they were subjected to. As per capacity design principles, plastic hinges formed in discrete regions, allowing the buildings to sway and stand and people to evacuate. Nevertheless, in many cases, these buildings were deemed too expensive to be repaired and were consequently demolished. Targeting life-safety is arguably not enough for our modern society, at least when dealing with new building construction. A paradigm shift towards damage-control design philosophy and technologies is urgently required. This paper and the associated presentation will discuss motivations, issues and, more importantly, cost-effective engineering solutions to design buildings capable of sustaining low-level of damage and thus limited business interruption after a design level earthquake. Focus will be given to the extensive research and developments in jointed ductile connections based upon controlled rocking & dissipating mechanisms for either reinforced concrete and, more recently, laminated timber structures. An overview of recent on-site applications of such systems, featuring some of the latest technical solutions developed in the laboratory and including proposals for the rebuild of Christchurch, will be provided as successful examples of practical implementation of performance-based seismic design theory and technology.

Images, UC QuakeStudies

A view down Colombo Street of a team of Fire Service and Search and Rescue personnel using a crane to check the Forsyth Barr building for people trapped by the 22 February 2011 earthquake. Behind them the broken tower of the Christ Church Cathedral can be seen.

Images, UC QuakeStudies

The entrance to the West Avon building on Montreal Street. The photographer comments, "This very wonderful Art Deco heritage building in Christchurch had residents living in it until another visit from the building engineers re-re-checking for earthquake damage. Now it is fenced off and on the list for possible demolition".