A photograph of Crack'd for Christchurch's partially-constructed armchair artwork. The armchair is on a pallet in Greening the Rubble's workshop. Jonathan Hall has moulded polystyrene, wood, mesh, and concrete over the steel frame to construct the armchair. Two cast-iron bath feet have been attached to the front legs.
A photograph of the steel frame of Crack'd for Christchurch's armchair artwork. The frame is on a pallet in the Greening the Rubble workshop. Two cast-iron bath feet have been attached to the front legs. The bottom half of the frame has been covered with mesh, wood, polystyrene, and concrete by Jonathan Hall.
A photograph looking east down Dundas Street. Piles of twisted steel reinforcement have been placed on both sides of the street. Several earthquake-damaged cars, recovered from the Smiths City car park, have been stacked on the left. On the other side of the street is an excavator grapple and bucket. In the distance two excavators are sorting through the rubble.
A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade.
A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade.
A close-up photograph of the rubble from the demolished Manchester Securities House on the corner of Madras and Gloucester Streets. The steel inside the concrete has been exposed.
A photograph of the front of the badly-damaged ChristChurch Cathedral. The Rose Window has been removed and steel bracing is holding up the remains of the front facade.
A photograph of the earthquake damage to the Canterbury Television Building on Gloucester Street. Some of the concrete on the columns has crumbled, revealing the steel reinforcement underneath.
A photograph of the earthquake damage to the Canterbury Television Building on Gloucester Street. Some of the concrete on the columns has crumbled, revealing the steel reinforcement underneath.
Spotlights seen through the steel bracing of Christ Church Cathedral.
A photograph of a steel beam from 116 Lichfield Street.
The damaged Oxford Terrace Baptist Church, supported by steel bracing.
Detail of steel reinforcements on the side of a house.
The damaged Oxford Terrace Baptist Church, supported by steel bracing.
A photograph of the earthquake damage to the Canterbury Television Building on Gloucester Street. Some of the concrete on the columns has crumbled, revealing the steel reinforcement underneath.
A photograph taken inside the Crowne Plaza Hotel on the corner of Kilmore and Durham Streets. Steel bracing has been used to hold up the ceiling. The column on the left is damaged.
A photograph of a concrete wall with steel reinforcement visible inside
The Canterbury earthquake series of 2010/2011 has turned the city of Christchurch into a full scale natural laboratory testing the structural and non-structural response of buildings under moderate to very severe earthquake shaking. The lessons learned from this, which have come at great cost socially and economically, are extremely valuable in increasing our understanding of whole building performance in severe earthquakes. Given current initiatives underway on both sides of the Tasman towards developing joint Australasian steel and composite steel/concrete design and construction standards that would span a very wide range of geological conditions and seismic zones, these lessons are relevant to both countries. This paper focusses on the performance of steel framed buildings in Christchurch city, with greatest emphasis on multi-storey buildings, but also covering single storey steel framed buildings and light steel framed housing. It addresses such issues as the magnitude and structural impact of the earthquake series, importance of good detailing, lack of observed column base hinging, the excellent performance of composite floors and it will briefly cover research underway to quantify some of these effects for use in design.
A photograph of a steel cage with rope and harness equipment inside.
The old Civic Council Chamber's west wall reinforced with heavy steel bracing.
Steel bracing supporting the broken facade of the Oxford Terrace Baptist Church.
A photograph of the McKenzie & Willis building supported by steel bracing.
Steel and wooden structures protect Our City O-Tautahi from further damage.
A photograph of the McKenzie & Willis building supported by steel bracing.
A steel stand with cars attached used to advertise Victoria Street Motors.
A photograph of a mural on a wall in the former site of a building on Norwich Quay in Lyttelton. Sections of reinforcing steel have been laid up against the mural.
A photograph of emergency management personnel inspecting the earthquake damage to a concrete beam inside a building. The concrete near the bottom of the beam has crumbled and the steel reinforcement inside is now exposed.
Workers laying steel to strengthen the foundations of a building on Victoria Street.
Detail of a steel ornament among other building rubble in an overgrown property.
A photograph of the Arts Centre with steel bracing holding up the walls.