
A toppled chimney on a house in Christchurch. The chimney has toppled onto the house but luckily not broken through the roof. It is now broken and lying on the corrugated iron. Below, plastic sheeting has been placed along the side of the roof to replace the missing gutter.
This paper presents the probabilistic seismic performance and loss assessment of an actual bridge– foundation–soil system, the Fitzgerald Avenue twin bridges in Christchurch, New Zealand. A two-dimensional finite element model of the longitudinal direction of the system is modelled using advanced soil and structural constitutive models. Ground motions at multiple levels of intensity are selected based on the seismic hazard deaggregation at the site. Based on rigorous examination of several deterministic analyses, engineering demand parameters (EDP’s), which capture the global and local demand, and consequent damage to the bridge and foundation are determined. A probabilistic seismic loss assessment of the structure considering both direct repair and loss of functionality consequences was performed to holistically assess the seismi risk of the system. It was found that the non-horizontal stratification of the soils, liquefaction, and soil–structure interaction had pronounced effects on the seismic demand distribution of the bridge components, of which the north abutment piles and central pier were critical in the systems seismic performance. The consequences due to loss of functionality of the bridge during repair were significantly larger than the direct repair costs, with over a 2% in 50 year probability of the total loss exceeding twice the book-value of the structure.
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.
A view of the ICTS building at the University of Canterbury, seen from level 7 of the James Hight building. The photographer comments, "First looks at our new temporary (maybe) office space. Our group will stay here until April or May 2011, then will move to another floor in the Central Library. We look down on the IT Building, which is doomed. The ugly draughty IT building is going to be demolished in the next campus revamp. The 'Butterfly Building' behind, originally the mainframe computer centre, will remain, as it's architecturally significant, apparently".
A photograph of the earthquake damage to the top of the former Municipal Chambers Building on Worcester Street. The top of the gable has crumbled and fallen onto the pavement below.
Henry Africa's Restaurant on Stanmore Road. The brick wall of the top storey has crumbled into the street, revealing the second layer on the inside. Fencing has been placed around the building to warn people off.
The roof of St John the Baptist Church on Latimer Square. Masonry has tumbled into the building, tearing a hole in the roof and exposing the inside of the church.
A photograph of the earthquake damage to the back of the Christchurch Chinese Methodist Church on Papanui Road. The brick wall has crumbled at the gable, exposing the wooden structure inside.
A building on Lichfield Street next to Poplar Lane. The top of the building crumbled onto the street during the 4 September earthquake, crushing a car. The inner walls are now visible on the top storey.
Members of the public viewing the damage to the Trinity Congregational Church (now the Octagon Live Restaurant) on the corner of Worcester and Manchester Streets. Wire fencing and tape have been placed around the building.
Damage to the Gayhurst Road bridge. The road has buckled due to the bridge's movement, and the bridge is cordoned off. Liquefaction covers part of the street, and in the background St Paul's Church is also cordoned off.
A video about the demolition of the Manchester Courts on the corner of Manchester and Hereford Streets. The video includes an interview with Richard Peebles, the co-owner of the building.
Close up of the foundations of a house on Avonside Drive. The top of the house has shifted during the quake, leaving a displacement between the house and the foundations about five centimetres wide.
The Cranmer Centre in Armagh Street with damage to the top archways on the roof. Wooden bracing has been placed on the archways and tarpaulins to prevent weather damage to the inside of the building.
A photograph of the earthquake damage to a building on Lichfield Street. The brick wall of the top storey of the building has crumbled, exposing the wooden structure underneath. Many of the windows are broken.
The tip of the gable on the Durham Street Methodist Church. The stone work has cracked and is leaning forward. Bracing can be seen at the back, holding the stonework in place.
The dairy on the corner of Woodham and Gloucester Street. The top wall has collapsed onto the footpath, the hole covered by a tarpaulin. Road cones and fencing have been placed around the building.
A photograph of the earthquake damage to the White's Building on Tuam Street, visible through a broken window. The roof of the building has collapsed into the building, a plank of wood breaking through the window.
A video of The Dukes performing at the Band Together concert in Hagley Park. The concert was held on the 23 October 2010 for the people of Canterbury after the 2010 earthquakes.
Damage to the Gayhurst Road bridge. The road has buckled due to the bridge's movement, and the bridge is cordoned off. Liquefaction covers part of the street, and in the background St Paul's Church is also cordoned off.
Among the deformation features produced in Christchurch by the September 4th Darfield Earthquake were numerous and widespread “sand volcanoes”. Most of these structures occurred in urban settings and “erupted” through a hardened surface of concrete or tarseal, or soil. Sand volcanoes were also widespread in the Avon‐ Heathcote Estuary and offered an excellent opportunity to readily examine shallow subsurface profiles and as such the potential appearance of such structures in the rock record.
A photograph of the earthquake damage to a group of shops on the corner of Barbadoes Street and Edgeware Road. The second storey of the shops has collapsed, and the bricks have fallen to the footpath, taking the awnings with them. Police tape and road cones have been placed around the buildings as a cordon.
A photograph of the earthquake damage to a group of shops on the corner of Barbadoes Street and Edgeware Road. The second storey of the shops has collapsed, and the bricks have fallen to the footpath, taking the awnings with them. Police tape and road cones have been placed around the buildings as a cordon.
Photograph captioned by Fairfax, "Earthquake Commission Public Meeting at the SBS Events Centre. Reid Stiven, representing the Earthquake Commission (EQC), responds to a query during the meeting, which was held to inform the public about making claims to the EQC relating to the 7.1 magnitude earthquake on 4 September. The meeting was hosted by Rangitata MP Jo Goodhew (left)".
Photograph captioned by Fairfax, "Earthquake Commission Public Meeting at the SBS Events Centre. Reid Stiven, representing the Earthquake Commission (EQC), responds to a query during the meeting, which was held to inform the public about making claims to the EQC relating the 7.1 magnitude earthquake on 4 September. The meeting was hosted by Rangitata MP Jo Goodhew (left)".
A photograph of the entrance to the Crowne Plaza Hotel. The window to the left has been boarded up with plywood, and tape has been placed in front to keep the area clear. A green sticker can be seen in the window to the right, indicating that the hotel is safe to enter.
A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.
A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.
A photograph of a house on Glenarm Terrace in Dallington. The chimney fell off the roof during the September earthquake and the bricks are still lying on the ground. A tarpaulin has been placed over the top of the hole to prevent water damage inside the house. Ironically, it has been weighed down with bricks.
A photograph of the earthquake damage to a group of shops on the corner of Barbadoes Street and Edgeware Road. The second storey of the shops has collapsed, and the bricks have fallen to the footpath, taking the awnings with them. Police tape and road cones have been placed around the buildings as a cordon.