A photograph of the earthquake damage to the masonry of 94 Cashel Street.
During the 2010/2011 Canterbury earthquakes, Reinforced Concrete Frame with Masonry Infill (RCFMI) buildings were subjected to significant lateral loads. A survey conducted by Christchurch City Council (CCC) and the Canterbury Earthquake Recovery Authority (CERA) documented 10,777 damaged buildings, which included building characteristics (building address, the number of storeys, the year of construction, and building use) and post-earthquake damage observations (building safety information, observed damage, level of damage, and current state of the buildings). This data was merged into the Canterbury Earthquake Building Assessment (CEBA) database and was utilised to generate empirical fragility curves using the lognormal distribution method. The proposed fragility curves were expected to provide a reliable estimation of the mean vulnerability for commercial RCFMI buildings in the region http://www.13thcms.com/wp-content/uploads/2017/05/Symposium-Info-and-Presentation-Schedule.pdf VoR - Version of Record
A photograph of earthquake damage to the masonry around a window of the Cranmer Centre.
A photograph of a detail in the masonry around a window of the Cranmer Centre.
A photograph of a detail of a piece of masonry removed from the Cranmer Centre.
A photograph of earthquake damage to the masonry above a window of the Cranmer Centre.
A photograph of two windows of the Cranmer Centre, with the masonry around them removed.
A photograph of a window of the Cranmer Centre, with the masonry around it removed.
A photograph of a window of the Cranmer Centre, with the masonry around it removed.
A photograph of a piece of masonry still attached to the partially-demolished Cranmer Centre.
Damage to the Knox Church where bricks and building masonry have fallen from the church.
A photograph of earthquake damage to the masonry above the windows of 109 Cambridge Terrace.
A photograph of a piece of masonry still attached to the partially-demolished Cranmer Centre.
A photograph of two windows of the Cranmer Centre, with the masonry around them removed.
Damage to the Knox Church where bricks and building masonry have fallen from the church.
A photograph of masonry removed from the Cranmer Centre and placed on the ground in front.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
A photograph of a piece of masonry removed from the Fuller Brothers Building on Tuam Street.
A photograph of the earthquake damage to the masonry around a window of 236 Tuam Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
A photograph of masonry removed from the Cranmer Centre and placed on the ground in front.
An aerial photograph of masonry from the earthquake damaged Canterbury Provincial Chambers Building on Durham Street.
A photograph of a piece of fallen masonry from the earthquake-damaged building at 158 Gloucester Street.
A video of an interview with relatives of Earl Nicholas and May Stick about the Coroner's Inquest into the 22 February 2011 earthquake. Nicholas and Stick lost their lives during the 22 February 2011 earthquake when the bus they were travelling in was crushed by falling masonry.
Seismic retrofitting of unreinforced masonry buildings using posttensioning has been the topic of many recent experimental research projects. However, the performance of such retrofit designs in actual design level earthquakes has previously been poorly documented. In 1984 two stone masonry buildings within The Arts Centre of Christchurch received posttensioned seismic retrofits, which were subsequently subjected to design level seismic loads during the 2010/2011 Canterbury earthquake sequence. These 26 year old retrofits were part of a global scheme to strengthen and secure the historic building complex and were subject to considerable budgetary constraints. Given the limited resources available at the time of construction and the current degraded state of the steel posttension tendons, the posttensioned retrofits performed well in preventing major damage to the overall structure of the two buildings in the Canterbury earthquakes. When compared to other similar unretrofitted structures within The Arts Centre, it is demonstrated that the posttensioning significantly improved the in-plane and out-of-plane wall strength and the ability to limit residual wall displacements. The history of The Arts Centre buildings and the details of the Canterbury earthquakes is discussed, followed by examination of the performance of the posttension retrofits and the suitability of this technique for future retrofitting of other historic unreinforced masonry buildings http://www.aees.org.au/downloads/conference-papers/