Building rubble and liquefaction on the footpath outside the former Public Library on the corner of Hereford Street and Cambridge Terrace.
A photograph of the earthquake damage to a house on Bealey Avenue near Springfield Road. The walls have crumbled, the bricks spilling onto the footpath in front. the ceiling of the building has been braced with scaffolding. A red sticker on the door indicates that the building is unsafe to enter.
A photograph of the Cranmer Courts on the corner of Kilmore and Montreal Streets. One of the gables has crumbled and ties have been placed around the rest to limit further damage from aftershocks.
A photograph of the Cranmer Courts on the corner of Montreal and Kilmore Street. The tower on the corner has been braced with ties.
A photograph of the Cranmer Courts on the corner of Montreal and Kilmore Street. The tower on the corner has been braced with ties.
A view from Cambridge Terrace of the damaged Our City O-Tautahi building, formerly the Municipal Chambers. Scaffolding and steel bracing has been placed along the front of the building.
The front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the front wall to limit further damage.
The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access.
The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access.
The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access.
The front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the front wall to limit further damage.
The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access.
The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access.
The front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the front wall to limit further damage.
A view down Worcester Boulevard. Steel bracing against Our City O-Tautahi can be seen. The Cathedral can be seen at the end of the street and the Clarendon Tower on the right.
Detail of wooden bracing supporting a two-storey building on the corner of Barbadoes and Worcester Streets. The house has been fenced off and on the walls are the words "Do not demolish".
A view of the Worcester Street bridge from across the Avon River. In the background, the Our City O-Tautahi building is surrounded by scaffolding and bracing, the Rydges building behind.
A view down Manchester Street looking north from Tuam Street. To the left is Peaches and Cream with bracing above the windows and in the distance collapsed buildings can be seen.
The ultimate goal of this study is to develop a model representing the in-plane behaviour of plasterboard ceiling diaphragms, as part of the efforts towards performance-based seismic engineering of low-rise light timber-framed (LTF) residential buildings in New Zealand (NZ). LTF residential buildings in NZ are constructed according to a prescriptive standard – NZS 3604 Timberframed buildings [1]. With regards to seismic resisting systems, LTF buildings constructed to NZS3604 often have irregular bracing arrangements within a floor plane. A damage survey of LTF buildings after the Canterbury earthquake revealed that structural irregularity (irregular bracing arrangement within a plane) significantly exacerbated the earthquake damage to LTF buildings. When a building has irregular bracing arrangements, the building will have not only translational deflections but also a torsional response in earthquakes. How effectively the induced torsion can be resolved depends on the stiffness of the floors/roof diaphragms. Ceiling and floor diaphragms in LTF buildings in NZ have different construction details from the rest of the world and there appears to be no information available on timber diaphragms typical of NZ practice. This paper presents experimental studies undertaken on plasterboard ceiling diaphragms as typical of NZ residential practice. Based on the test results, a mathematical model simulating the in-plane stiffness of plasterboard ceiling diaphragms was developed, and the developed model has a similar format to that of plasterboard bracing wall elements presented in an accompany paper by Liu [2]. With these two models, three-dimensional non-linear push-over studies of LTF buildings can be undertaken to calculate seismic performance of irregular LTF buildings.
A close up of the damaged stonework of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the front wall to limit further damage.
A close up of the damaged stonework of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
The damaged cathedral is supported with steel bracing and cordoned off with fencing and barriers. Taken on a day when a walkway was opened up between Re:Start Mall and Cathedral Square to allow temporary public access.
The front side of the Cathedral with the rose window removed and bracing supporting the wall. The broken tower can be seen to the left and fencing placed around the outside of the building.
Looking down Worcester Street with Our City-O-Tautahi with bracing on its front facade on the left, behind it is Rydges, the Grant Thornton Building in the middle back, and the Claredon Towers on the right.
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Bracing has been placed against the front wall to limit further damage.
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
Heavy steel bracing holding up the clock tower on the Worcester Street side of the Arts Centre. Wire fencing has been placed along the road in order to cordon off the building.
The damaged cathedral is supported with steel bracing and cordoned off with fencing and barriers. Taken on a day when a walkway was opened up between Re:Start Mall and Cathedral Square to allow temporary public access.
A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The entranceway is supported with wooden bracing, and part of the brick wall beside the entrance has collapsed.