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Images, UC QuakeStudies

A photograph of the earthquake damage to St Paul's-Trinity-Pacific Church on the corner of Cashel and Madras Streets. Large sections of the church have collapsed and the bricks and other rubble have spilled onto the footpath and street in front. Sections of the scaffolding, constructed up the side of the building before the earthquake, have also collapsed.

Images, UC QuakeStudies

A photograph of an earthquake-damaged building on the corner of Colombo Street and St Asaph Street. The walls of the top storey of the building have crumbled, and bricks and other rubble have fallen onto the footpath and road below. In the background are many other earthquake-damaged buildings. Wire fencing and police tape have been placed across the street as a cordon.

Images, UC QuakeStudies

Messages on the "I hope Christchurch will..." blackboard on the corner of Tuam and Colombo Streets. Members of the public were invited to fill in the gaps with what they would like to see in the rebuilt city. Messages can be seen, such as, "Smile!", "Be filled with art and culture!", "Cater and be fun for all ages", "Always be positive" and "Wake up".

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Courts on the corner of Montreal and Kilmore Streets. A chimney has fallen from the roof, damaging many of the roof tiles. A tarpaulin has been placed over a hole to protect the interior of the building from weather damage. Wire fencing has been placed around the building as a cordon.

Images, Canterbury Museum

One landscape colour digital photograph taken on 26 May 2013 on the corner of Norwich Quay and Canterbury Street, Lyttelton. The photograph shows the Mitre Hotel surrounded by temporary fencing. Three years after the 2010-2011 earthquakes there are still many uncertainties about which buildings can or will be retained. These buildings, or parts...

Images, Canterbury Museum

One landscape colour digital photograph taken on 26 May 2013 on the corner of Norwich Quay and Canterbury Street, Lyttelton. The photograph shows the sites of the Royal Hotel, Shadbolt House, and the Lyttelton Hotel along Norwich Quay. The Wunderbar and the repair and strengthening work underway on the Lyttelton Working Mens Club/The Loons are v...

Images, UC QuakeStudies

The interior of the octagonal corner section of the Cranmer Court building, which housed Plato Creative from March 2008 to November 2009. The photograph showcases the building's intricate wooden ceiling and high windows. A stained glass crest is visible at the bottom of one of the windows reading, "Est. 1874. The spirit of this building lives on". Although designed to house a book depot, this section was used as the principal's office while Christchurch Normal School was operating from the building.

Images, UC QuakeStudies

The interior of the octagonal corner section of the Cranmer Court building, which housed Plato Creative from March 2008 to November 2009. The photograph showcases the building's intricate wooden ceiling and high windows. A stained glass design is visible at the center of the windows with a motto underneath reading, "The spirit of this building lives on". Although designed to house a book depot, this section was used as the principal's office while Christchurch Normal School was operating from the building.

Images, UC QuakeStudies

A photograph of the earthquake damage to a building on the corner of Hereford and Madras Street. Sections of the façade have crumbled, bricks spilling onto the road in front. Wire fencing has been used to block off half of Madras Street. In the background, emergency management personnel are working through the rubble of the CTV building site. A digger and a crane are parked on the site.

Images, UC QuakeStudies

A photograph of the Thai Temple restaurant on the corner of Colombo and Peterborough Streets. A red sticker has been placed on the front door, indicating that the building is unsafe to enter. Tape has been placed around the building as a cordon. A sign reading, "Strawberry Fare, yes we are open, we are sorry for any inconvenience" has been tied to a lamp post in front.

Images, UC QuakeStudies

Actor Tony Robinson at the "I hope Christchurch will..." blackboard, a mural on the corner of Colombo and Tuam Streets. Members of the public were invited to fill in the gaps with what they would like to see in the rebuilt city. Messages can be seen, such as, "I want sun!", "Embrace the new", "Retain its unique character", "Rise, and rise, and rise", "Rebuild to be better and stronger than before!" and "Environmentally friendly".

Images, UC QuakeStudies

A photograph of the earthquake damage to the Iconic bar on the corner of Manchester and Gloucester Streets. Large sections of the outer walls have collapsed, the bricks and masonry spilling onto the footpath below, crushing several cars. USAR codes have been spray-painted near the door and a red sticker has been taped above. The red sticker indicates that the building is unsafe to enter.

Images, UC QuakeStudies

A photograph of the location of the Green Room garden on Colombo Street. White picket fences have been placed around the edges of the site and a platform has been partially constructed in the back-right corner. Wire fences have been placed around the entire section as a cordon.Crack'd for Christchurch comments, "The Green Room was built by Jonathan Hall and planted by Gina Payne."

Images, UC QuakeStudies

The interior of the octagonal corner section of the Cranmer Court building, which housed Plato Creative from March 2008 to November 2009. The photograph showcases the building's intricate wooden ceiling and high windows. A stained glass design is visible at the center of the window with a motto underneath reading, "The spirit of this building lives on". Although designed to house a book depot, this room was used as the principal's office while Christchurch Normal School was operating from the building.

Images, UC QuakeStudies

A photograph of the earthquake-damaged Our City O-Tautahi Building on the corner of Worcester Street and Oxford Terrace. Steel bracing has been placed against the building to secure the brick walls. The bracing is supported by large concrete blocks. Wire fences have also been placed around the bottom of the building as a cordon. Scaffolding has been erected around the tower to the right.

Images, UC QuakeStudies

A photograph of a section of a mural on the corner of Byron Street and Colombo Street. The section contains a palm tree. A horse is also partially visible. On the left there is the message, "Occupy love and light right here and now. We'll all meet up on Equality Street anyhow. Love light power." Below the message are a variety of hearts in red, white, and different shades of pink.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Carlton Hotel on the corner of Papanui Road and Bealey Avenue. The wall of the top storey of the building has crumbled, and bricks have fallen onto the footpath. Wire fencing, road cones, and cordon tape have been placed around the building as a cordon. Scaffolding and steel bracing can be seen against the front of the building.

Images, eqnz.chch.2010

Corner of Cashel and Madras streets, with the relatively new (built 2007) Inland Revenue Building and the white chair memorial to the 185 lives lost as a result of the 22/02/11 earthquake. The chairs sit on the site of the now demolished St Pauls Pacific Chuch and is diagonally across the intersection from the CTV (Canterbury TV) building where ...

Research papers, University of Canterbury Library

Reinforced concrete structures designed in pre-1970s are vulnerable under earthquakes due to lack of seismic detailing to provide adequate ductility. Typical deficiencies of pre-1970s reinforced concrete structures are (a) use of plain bars as longitudinal reinforcement, (b) inadequate anchorage of beam longitudinal reinforcement in the column (particularly exterior column), (c) lack of joint transverse reinforcement if any, (d) lapped splices located just above joint, and (e) low concrete strength. Furthermore, the use of infill walls is a controversial issue because it can help to provide additional stiffness to the structure on the positive side and on the negative side it can increase the possibility of soft-storey mechanisms if it is distributed irregularly. Experimental research to investigate the possible seismic behaviour of pre-1970s reinforced concrete structures have been carried out in the past. However, there is still an absence of experimental tests on the 3-D response of existing beam-column joints under bi-directional cyclic loading, such as corner joints. As part of the research work herein presented, a series of experimental tests on beam-column subassemblies with typical detailing of pre-1970s buildings has been carried out to investigate the behaviour of existing reinforced concrete structures. Six two-third scale plane frame exterior beam-column joint subassemblies were constructed and tested under quasi-static cyclic loading in the Structural Laboratory of the University of Canterbury. The reinforcement detailing and beam dimension were varied to investigate their effect on the seismic behaviour. Four specimens were conventional deep beam-column joint, with two of them using deformed longitudinal bars and beam bars bent in to the joint and the two others using plain round longitudinal bars and beam bars with end hooks. The other two specimens were shallow beam-column joint, one with deformed longitudinal bars and beam bars bent in to the joint, the other with plain round longitudinal bars and beam bars with end hooks. All units had one transverse reinforcement in the joint. The results of the experimental tests indicated that conventional exterior beam-column joint with typical detailing of pre-1970s building would experience serious diagonal tension cracking in the joint panel under earthquake. The use of plain round bars with end hooks for beam longitudinal reinforcement results in more severe damage in the joint core when compared to the use of deformed bars for beam longitudinal reinforcement bent in to the joint, due to the combination of bar slips and concrete crushing. One interesting outcome is that the use of shallow beam in the exterior beam-column joint could avoid the joint cracking due to the beam size although the strength provided lower when compared with the use of deep beam with equal moment capacity. Therefore, taking into account the low strength and stiffness, shallow beam can be reintroduced as an alternative solution in design process. In addition, the presence of single transverse reinforcement in the joint core can provide additional confinement after the first crack occurred, thus delaying the strength degradation of the structure. Three two-third scale space frame corner beam-column joint subassemblies were also constructed to investigate the biaxial loading effect. Two specimens were deep-deep beam-corner column joint specimens and the other one was deep-shallow beam-corner column joint specimen. One deep-deep beam-corner column joint specimen was not using any transverse reinforcement in the joint core while the two other specimens were using one transverse reinforcement in the joint core. Plain round longitudinal bars were used for all units with hook anchorage for the beam bars. Results from the tests confirmed the evidences from earthquake damage observations with the exterior 3-D (corner) beam-column joint subjected to biaxial loading would have less strength and suffer higher damage in the joint area under earthquake. Furthermore, the joint shear relation in the two directions is calibrated from the results to provide better analysis. An analytical model was used to simulate the seismic behaviour of the joints with the help of Ruaumoko software. Alternative strength degradation curves corresponding to different reinforcement detailing of beam-column joint unit were proposed based on the test results.

Images, eqnz.chch.2010

Manchester Courts, a seven-storey building on the corner of Hereford and Manchester Streets, is a category one historic place built in 1905-1906 that up until the 7.1 earthquake, housed offices. News of the scheduled demolition provoked an emotional response from the people of Christchurch. UPDATE 14 October 2010: A group of residents is campaig...

Images, eqnz.chch.2010

Manchester Courts, a seven-storey building on the corner of Hereford and Manchester Streets, is a category one historic place built in 1905-1906 that up until the 7.1 earthquake, housed offices. News of the scheduled demolition provoked an emotional response from the people of Christchurch. UPDATE 14 October 2010: A group of residents is campaig...

Images, UC QuakeStudies

A photograph of the Townsend Telescope in the Observatory at the Christchurch Arts Centre. In the bottom right-hand corner of the photograph is a pulley for the telescope's clock drive. This is one of the pieces that went missing when the Observatory tower collapsed in the 22 February 2011 earthquake. This image was used by Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy, to identify the telescope's parts after the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of the earthquake damage to R&R Sport on the corner of Colombo and Tuam Streets. Most of the side wall has crumbled, the bricks spilling onto the footpath below. Plywood and plastic sheeting has been used to weather proof the building. Wire fencing and road cones have been placed around the building as a cordon. A cherry picker is parked on the footpath in between the building and the fence.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Country Theme store on the corner of Manchester and St Asaph Streets. Sections of the second storey walls have crumbled, and the bricks have fallen onto the footpath below. Wire fences have been placed around the building as a cordon. Red stickers on the front door and the wire fence indicate that the building is not safe to enter.

Images, UC QuakeStudies

A photograph looking north down Gayhurst Road, taken from the side of the bridge over the Avon River. Residential properties used to line the left-hand side of the road, and St Paul's church once stood on the corner. This was before the land was red-zoned as a result of the 2010 and 2011 Canterbury earthquakes. Separated cycle ways have recently been installed on both sides of the road. The photograph was modelled off an image taken by Mark Lincoln in September 2010.

Images, UC QuakeStudies

A photograph looking north down Gayhurst Road, taken from the side of the bridge over the Avon River. Residential properties used to line the left-hand side of the road, and St Paul's church once stood on the corner. This was before the land was red-zoned as a result of the 2010 and 2011 Canterbury earthquakes. Separated cycle ways have recently been installed on both sides of the road. The photograph was modelled off an image taken by Mark Lincoln in September 2010.