A photograph captioned by BeckerFraserPhotos, "Earthquake damage to the former post office on the corner of Colombo and Brougham Street in Sydenham".
Photograph captioned by BeckerFraserPhotos, "The Edmonds Clock Tower, Oxford Terrace, stopped at 12.51, the time of the 22 February 2011 earthquake".
A photograph of a collar from the Townsend Telescope. Part of the collar was bent out of shape during the 22 February 2011 earthquake.
A photograph of a slow motion rod from the Townsend Telescope. The rod was bent out of shape during the 22 February 2011 earthquake.
A photograph captioned by BeckerFraserPhotos, "Earthquake damage to the former post office on the corner of Colombo and Brougham Street in Sydenham".
A photograph captioned by BeckerFraserPhotos, "Earthquake damage to the former post office on the corner of Colombo and Brougham Street in Sydenham".
A photograph captioned by BeckerFraserPhotos, "Earthquake damage to the former post office on the corner of Colombo and Brougham Street in Sydenham".
A photograph of a building on Worcester Street which suffered fire damage when an electrical fire broke out after the 4 September 2010 earthquake.
A photograph of members of the Dog Section of the New Zealand Police at the site of an earthquake-damaged building in central Christchurch.
A photograph captioned by BeckerFraserPhotos, "Earthquake damage to the former post office on the corner of Colombo and Brougham Street in Sydenham".
A photograph of the earthquake damage to Wharetiki on Colombo Street. One of the side walls has buckled and pulled away from the house.
Cordon fences on the Colombo Street bridge are the only signs of earthquake damage in this view of the recently re-opened Victoria Square.
A notice from CERA at the start of the Cathedral Square walkway, listing safety instructions and what to do in case of an earthquake.
A photograph of street art at the Addington Saleyards, taken before the Canterbury earthquakes. One of the art works depicts an intoxicated Mickey Mouse.
A photograph of volunteers from the Wellington Emergency Management Office sitting on a fence around a group of earthquake-damaged shops on Manchester Street.
A photograph of an earthquake-damaged car sitting amongst the rubble from the ANZ Bank building on the corner of Lichfield and High Streets.
A photograph of the earthquake damage to a house in Christchurch. The house has fallen off its foundations and is on a severe lean.
A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
A sign in the window of a business reads, "We were so moved by the earthquake. Come see us at 6d Washington Way.
A memorial service is held in Latimer Square on the anniversary of the 22 February 2011 earthquake. Flowers are laid at the temporary memorial.
A photograph of volunteers from the Wellington Emergency Management Office sitting on a fence around a group of earthquake-damaged shops on Manchester Street.
Prime Minister John Key holds a dog at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
A photograph of flowers left at the site of the CTV building. The photograph is captioned by Paul Corliss, "Second anniversary 22 February earthquake".
Photograph captioned by BeckerFraserPhotos, "The south-west corner of Manchester and Gloucester Streets. Extensive further damage during the 13 June 2011 earthquake".
A variation to the consent granted by the Christchurch City Council, providing consent to carry out earthquake repair work that may affect protected vegetation.
A photograph of flowers left at the site of the CTV building. The photograph is captioned by Paul Corliss, "Second anniversary 22 February earthquake".
A photograph of flowers left at the site of the CTV building. The photograph is captioned by Paul Corliss, "Second anniversary 22 February earthquake".
A crushed trailer on a property in Redcliffs. A large rock from cliff above fell onto the trailer during the 22 February 2011 earthquake.
A video of a presentation by Dr Duncan Webb, Partner at Lane Neave, during the third plenary of the 2016 People in Disasters Conference. The presentation is titled, "Loss of Trust and other Earthquake Damage".The abstract for this presentation reads as follows: It was predictable that the earthquakes which hit the Canterbury region in 2010 and 2011 caused trauma. However, it was assumed that recovery would be significantly assisted by governmental agencies and private insurers. The expectation was that these organisations would relieve the financial pressures and associated anxiety caused by damage to property. Some initiatives did exactly that. However, there are many instances where difficulties with insurance and related issues have exacerbated the adverse effects of the earthquakes on people's wellness. In some cases, stresses around property issues have become and independent source of extreme anxiety and have had significant impacts on the quality of people's lives. Underlying this problem is a breakdown in trust between citizen and state, and insurer and insured. This has led to a pervading concern that entitlements are being denied. While such concerns are sometimes well founded, an approach which is premised on mistrust is frequently highly conflicted, costly, and often leads to worse outcomes. Professor Webb will discuss the nature and causes of these difficulties including: the complexity of insurance and repair issues, the organisational ethos of the relevant agencies, the hopes of homeowners and the practical gap which commonly arises between homeowner expectation and agency response. Observations will be offered on how the adverse effects of these issues can be overcome in dealing with claimants, and how such matters can be managed in a way which promotes the wellness of individuals.
High demolition rates were observed in New Zealand after the 2010-2011 Canterbury Earthquake Sequence despite the success of modern seismic design standards to achieve required performance objectives such as life safety and collapse prevention. Approximately 60% of the multi-storey reinforced concrete (RC) buildings in the Christchurch Central Business District were demolished after these earthquakes, even when only minor structural damage was present. Several factors influenced the decision of demolition instead of repair, one of them being the uncertainty of the seismic capacity of a damaged structure. To provide more insight into this topic, the investigation conducted in this thesis evaluated the residual capacity of moderately damaged RC walls and the effectiveness of repair techniques to restore the seismic performance of heavily damaged RC walls. The research outcome provided insights for developing guidelines for post-earthquake assessment of earthquake-damaged RC structures. The methodology used to conduct the investigation was through an experimental program divided into two phases. During the first phase, two walls were subjected to different types of pre-cyclic loading to represent the damaged condition from a prior earthquake, and a third wall represented a repair scenario with the damaged wall being repaired using epoxy injection and repair mortar after the pre-cyclic loading. Comparisons of these test walls to a control undamaged wall identified significant reductions in the stiffness of the damaged walls and a partial recovery in the wall stiffness achieved following epoxy injection. Visual damage that included distributed horizontal and diagonal cracks and spalling of the cover concrete did not affect the residual strength or displacement capacity of the walls. However, evidence of buckling of the longitudinal reinforcement during the pre-cyclic loading resulted in a slight reduction in strength recovery and a significant reduction in the displacement capacity of the damaged walls. Additional experimental programs from the literature were used to provide recommendations for modelling the response of moderately damaged RC walls and to identify a threshold that represented a potential reduction in the residual strength and displacement capacity of damaged RC walls in future earthquakes. The second phase of the experimental program conducted in this thesis addressed the replacement of concrete and reinforcing steel as repair techniques for heavily damaged RC walls. Two walls were repaired by replacing the damaged concrete and using welded connections to connect new reinforcing bars with existing bars. Different locations of the welded connections were investigated in the repaired walls to study the impact of these discontinuities at the critical section. No significant changes were observed in the stiffness, strength, and displacement capacity of the repaired walls compared to the benchmark undamaged wall. Differences in the local behaviour at the critical section were observed in one of the walls but did not impact the global response. The results of these two repaired walls were combined with other experimental programs found in the literature to assemble a database of repaired RC walls. Qualitative and quantitative analyses identified trends across various parameters, including wall types, damage before repair, and repair techniques implemented. The primary outcome of the database analysis was recommendations for concrete and reinforcing steel replacement to restore the strength and displacement capacity of heavily damaged RC walls.