Damage to Cranmer Courts, formerly the Normal School. The tower has collapsed, exposing interior walls.
Damage to the Cranmer Courts. A section of the wall has crumbled, exposing the wooden framing and the interior of the building.
Damage to the Cranmer Courts. A section of the wall has crumbled, exposing the wooden framing and the interior of the building.
Detail of damage to the Cranmer Courts. A section of the wall has crumbled, exposing the wooden framing and the interior of the building.
Detail of damage to the Cranmer Courts. A section of the wall has crumbled, exposing the wooden framing and the interior of the building.
Detail of damage to the Cranmer Courts. A section of the wall has crumbled, exposing the wooden framing and the interior of the building.
A fence around a residential property where the side wall has collasped, exposing the interior structures and fixtures. Piles of building rubble are contained in the fencing.
A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The brick wall on one side of the building has collapsed, exposing the interior.
A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The brick wall on one side of the building has collapsed, exposing the interior.
A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The brick wall on one side of the building has collapsed, exposing the interior.
A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The brick wall on one side of the building has collapsed, exposing the interior.
A section of the brick wall on the Croydon House B&B Hotel has crumbled, exposing an interior room. Spray paint markings left by USAR can be seen on the house and fencing.
A view down Tuam Street. Road cones and cordon fencing have been placed around damaged buildings. In the background is a building where the walls have crumbled, exposing the interior of the building.
A section of the brick wall on the Croydon House B&B Hotel has crumbled, exposing an interior room. Spray paint markings left by USAR can be seen on the house and fencing.
The damaged Carlton Hotel with scaffolding on one side supporting the walls. On the other side, the wall has crumbled, exposing the interior, and leaving a pile of building rubble on the footpath.
Army presence outside the city cordon on Tuam Street. Road cones and cordon fencing have been placed around damaged buildings. In the background is a building where the walls have crumbled, exposing the interior of the building.
The wall of the Carlton Hotel has crumbled, exposing the interior of the upstair rooms. Scaffolding and steel bracing has been put up on the side, and a pile of building rubble can be seen on the footpath.
The wall of the Carlton Hotel has crumbled, exposing the interior of the upstair rooms. Scaffolding and steel bracing has been put up on the side, and a pile of building rubble can be seen on the footpath.
The damaged Ozone Hotel has had its window frames removed, and the interior has been gutted. The photographer comments, "The Ozone was badly damaged in Christchurch's February earthquake, but at considerable risk someone has removed the windows and door".
Broken panelling on a building on Colombo Street has exposed the interior of the walls. The photographer comments, "Seen in the Christchurch Earthquake Red Zone. If you saw this anywhere else in the world you would have thought that it was a piece of modern art".
Bricks have fallen from the walls of the former Princess Cinema in New Brighton, exposing the interior. The photographer comments, "Back of the old Princess Cinema in New Brighton after the earthquake in Christchurch, New Zealand on 22 February. In this picture you can see inside the old cinema curtains. This building has now been knocked down as it was so dangerous".
Detail of damage to the former Princess Cinema in New Brighton. Bricks have fallen from the wall, exposing the interior. The photographer comments, "This is the back of the old Princess Cinema in New Brighton after the earthquake in Christchurch, New Zealand on 22 February. The bricks seem to be just on the edge of falling. This building has now been knocked down as it was so dangerous".
From My Little Blue Window By Elvis Costello Well, I was a gloomy soul Never thought I see a brighter day The dark interior Blows those silver clouds away 'Til now this was my view But I'm counting on you How am I ever going got make you see? Nothing in this ugly world comes easily I want you to be... My lovely hooligan Come by and...
Detail of damage to the former Princess Cinema in New Brighton. Bricks have fallen from the wall, exposing the interior. The photographer comments, "This is the side view of the back of the old Princess Cinema in New Brighton after the earthquake in Christchurch, New Zealand on 22 February. The bricks seem to be just about to fall, but stayed in place after several big aftershocks. This building has now been knocked down as it was so dangerous".
An as-built reinforced concrete (RC) frame building designed and constructed according to pre-1970s code design construction practice has been recently tested on the shake table at the University of Canterbury. The specimen, 1/2.5 scaled version of the original prototype, consists of two 3-storey 2-bay asymmetric frames in parallel, one interior and one exterior, jointed together by transverse beams and floor slabs. Following the benchmark test, a retrofit intervention has been proposed to rehabilitate the tested specimen. In this paper, detailed information on the assessment and design of the seismic retrofit procedure using GFRP (glass fibre reinforced polymer) materials is given for the whole frame. Hierarchy of strength and sequence of events (damage mechanisms) in the panel zone region are evaluated using a moment-axial load (M-N) interaction performance domain, according to a performance-based retrofit philosophy. Specific limit states or design objectives are targeted with attention given to both strength and deformation limits. In addition, an innovative retrofit solution using FRP anchor dowels for the corner beam-column joints with slabs is proposed. Finally, in order to provide a practical tool for engineering practice, the retrofit procedure is provided in a step-by step flowchart fashion.
In order to provide information related to seismic vulnerability of non-ductile reinforced concrete (RC) frame buildings, and as a complementary investigation on innovative feasible retrofit solutions developed in the past six years at the University of Canterbury on pre-19170 reinforced concrete buildings, a frame building representative of older construction practice was tested on the shake table. The specimen, 1/2.5 scale, consists of two 3-storey 2-bay asymmetric frames in parallel, one interior and one exterior, jointed together by transverse beams and floor slabs. The as-built (benchmark) specimen was first tested under increasing ground motion amplitudes using records from Loma Prieta Earthquake (California, 1989) and suffered significant damage at the upper floor, most of it due to lap splices failure. As a consequence, in a second stage, the specimen was repaired and modified by removing the concrete in the lap splice region, welding the column longitudinal bars, replacing the removed concrete with structural mortar, and injecting cracks with epoxy resin. The modified as-built specimen was then tested using data recorded during Darfield (New Zealand, 2010) and Maule (Chile, 2010) Earthquakes, with whom the specimen showed remarkably different responses attributed to the main variation in frequency content and duration. In this contribution, the seismic performance of the three series of experiments are presented and compared.