A photograph of bricks stacked on a demolition site. The photograph is captioned by Paul Corliss, "Cashel Street".
A photograph of bricks stacked on a demolition site. The photograph is captioned by Paul Corliss, "Cashel Street".
Photograph captioned by BeckerFraserPhotos, "A saved piece of the old City Library during demolition".
Wood and pink insulation batts on Canterbury Street in Lyttelton. This construction material has been stripped from the exterior of a house.
The remains of the Cranmer Centre.
Photograph captioned by BeckerFraserPhotos, "Looking along Gloucester Street towards the Marque Hotel with the Novotel on the right. Demolition material is the Coachman".
A photograph of a paste-up on a wall on Peterborough Street. The paste-up depicts an excavator picking up demolition material, with a speech bubble reading, "Nom nom".
A photograph of a paste-up on a wall on Peterborough Street. The paste-up depicts an excavator picking up demolition material, with a speech bubble reading, "Nom nom".
A digger loading building material from Avonmore House onto a truck to be recycled.
A photograph captioned by BeckerFraserPhotos, "A crane lifting roof material off a demolition building at 705 Colombo Street".
Photograph captioned by BeckerFraserPhotos, "Fleet House is between the demolition sites of Kenton Chambers and Manchester Courts. It is being set up for demolition now - with material being stripped out of it and fill laid upon the footpath".
Photograph captioned by BeckerFraserPhotos, "Louis Vuitton Building being demolished, COlombo Street".
Wood and bricks on Canterbury Street in Lyttelton. This construction material has been stripped from the house behind. To the right is a digger.
Construction materials outside a house on Canterbury Street in Lyttelton. The house is being demolished after the 22 February 2011 earthquake. Wire fencing and road cones cordon off the area, and a bulldozer and a digger are parked on the road.
Aftermath of September 4th Earthquake in Canterbury. Shops on Colombo Street in Christchurch - damaged in earthquake and then partially demolished to reduce risk from unstable materials which might otherwise be dislodged in strong winds or subsequent aftershocks. The 1590 aftershocks recorded to date have continued to cause further damage.
A Gap Filler mini-golf site made out of recycled materials. This hole was situated on Manchester Street on an empty demolition site. Gap Filler volunteers and community groups designed and installed mini-golf holes on vacant sites around the central business district.
The Canterbury earthquake sequence of 2010-2011 wrought ruptures in not only the physical landscape of Canterbury and Christchurch’s material form, but also in its social, economic, and political fabrics and the lives of Christchurch inhabitants. In the years that followed, the widespread demolition of the CBD that followed the earthquakes produced a bleak landscape of grey rubble punctuated by damaged, abandoned buildings. It was into this post-earthquake landscape that Gap Filler and other ‘transitional’ organisations inserted playful, creative, experimental projects to bring life and energy back into the CBD. This thesis examines those interventions and the development of the ‘Transitional Movement’ between July 2013 and June 2015 via the methods of walking interviews and participant observation. This critical period in Christchurch’s recovery serves as an example of what happens when do-it-yourself (DIY) urbanism is done at scale across the CBD and what urban experimentation can offer city-making. Through an understanding of space as produced, informed by Lefebvre’s thinking, I explore how these creative urban interventions manifested a different temporality to orthodox planning and demonstrate how the ‘soft’ politics of these interventions contain the potential for gentrification and also a more radical politics of the city, by creating an opening space for difference.
Reinforced concrete buildings that satisfied modern seismic design criteria generally behaved as expected during the recent Canterbury and Kaikoura earthquakes in New Zealand, forming plastic hinges in intended locations. While this meant that life-safety performance objectives were met, widespread demolition and heavy economic losses took place in the aftermath of the earthquakes.The Christchurch central business district was particularly hard hit, with over 60% of the multistorey reinforced concrete buildings being demolished. A lack of knowledge on the post-earthquake residual capacity of reinforced concrete buildings was a contributing factor to the mass demolition.Many aspects related to the assessment of earthquake-damaged reinforced concrete buildings require further research. This thesis focusses on improving the state of knowledge on the post earthquakeresidual capacity and reparability of moderately damaged plastic hinges, with an emphasis on plastic hinges typical of modern moment frame structures. The repair method focussed on is epoxy injection of cracks and patching of spalled concrete. A targeted test program on seventeen nominally identical large-scale ductile reinforced concrete beams, three of which were repaired by epoxy injection following initial damaging loadings, was conducted to support these objectives. Test variables included the loading protocol, the loading rate, and the level of restraint to axial elongation.The information that can be gleaned from post-earthquake damage surveys is investigated. It is shown that residual crack widths are dependent on residual deformations, and are not necessarily indicative of the maximum rotation demands or the plastic hinge residual capacity. The implications of various other types of damage typical of beam and column plastic hinges are also discussed.Experimental data are used to demonstrate that the strength and deformation capacity of plastic hinges with modern seismic detailing are often unreduced as a result of moderate earthquake induced damage, albeit with certain exceptions. Special attention is given to the effects of prior yielding of the longitudinal reinforcement, accounting for the low-cycle fatigue and strain ageing phenomena. A material-level testing program on the low-cycle fatigue behaviour of grade 300E reinforcing steel was conducted to supplement the data available in the literature.A reduction in stiffness, relative to the initial secant stiffness to yield, occurs due to moderate plastic hinging damage. This reduction in stiffness is shown to be correlated with the ductility demand,and a proposed model gives a conservative lower-bound estimate of the residual stiffness following an arbitrary earthquake-type loading. Repair by epoxy injection is shown to be effective in restoring the majority of stiffness to plastic hinges in beams. Epoxy injection is also shown to have implications for the residual strength and elongation characteristics of repaired plastic hinges.