Reinforcing the apex of the clocktower gable.
This shop lost its gable during the magnitude 7.1 earthquake that struck Christchurch on 4 September 2010.
A photograph of a earthquake damaged gable of the Cranmer Centre.
A photograph of a gable of Ironside House on Montreal Street.
Temporary repairs to the damaged gable ends of a brick building.
A photograph of Knox Church on Bealey Avenue. Much of the brick wall is missing, exposing the wooden framing of the gables and the inside of the church.
The huge tremor shook the masonry gable off this apartment block in the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.
The gable disappeared off the roof of this church following the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.
The huge tremor shook the masonry gable off this apartment block in the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.
Masonry gable of the Christchurch School of Music broke off during the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.
A photograph of earthquake damage to a gable of Ironside House on Montreal Street.
The Christchurch Methodist Church van takes a hit from the falling gable end of the church.
A photograph of earthquake damage to a gable of the Sisters of Our Lady of the Missions Convent.
Falling gable of the Anglican Community of the Sacred Name building left a gaping hole in the roof in the magnitude 7.1 earthquake that hit Christchurch on 4 September 2010. The chimney would have toppled as well had it not been braced.
Earthquake damage to the former Christchurch Girls' High building. Bricks have fallen from the gable ends of the building.
Red Bus buses parked in the depot next to the damaged Scotts Motors workshop, the brick gable ends of which have collapsed.
Red Bus buses parked in the depot next to the damaged Scotts Motors workshop, the brick gable ends of which have collapsed.
Earthquake damage to the former Christchurch Girls' High building. Bricks have fallen from the gable ends of the building, exposing the rooms within.
The Christchurch School of Music on Barbadoes Street lost its brick gables in the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.
A close up of the peaked roof of Christ Church Cathedral. The capping stones of the gable end have been damaged. Steel reinforcing wire can be seen protruding from the stone.
A close up of the peaked roof of Christ Church Cathedral. The capping stones of the gable end have been damaged. Steel reinforcing wire can be seen protruding from the stone.
The end gable of the Library Chambers has crumbled, and the area has been cordoned off with fencing and cones. In the background is the new Christchurch City Council's Civic Offices.
The first stone structure built in Cathedral Square was the small Gothic stone Torlesse building. Situated in the south-west corner of the square, the two storey, three gable dormer windowed buildi…
The roof gable on the Avon Bridal building has crumbled onto the footpath. On the building are spray painted markings, used by USAR after they had checked the building after the February earthquake.
A view of the intersection of Hereford Street and Cambridge Terrace. The end gable of the Library Chambers has crumbled, and the area has been cordoned off with fencing and cones. In the background is the Christchurch City Council's Civic Offices.
A view of the Cranmer Court building on the corner of Kilmore and Montreal Streets, showing damage from the 4 September 2010 earthquake. Masonry has fallen away from the apexes of several of the building's gables, which have been reinforced with timber bracing. A green cord has been used to tie bracing to the octagonal section on the corner of the building. This corner section is the part that housed Plato Creative from March 2008 to November 2009.
Seismic behaviour of typical unreinforced masonry (URM) brick houses, that were common in early last century in New Zealand and still common in many developing countries, is experimentally investigated at University of Canterbury, New Zealand in this research. A one halfscale model URM house is constructed and tested under earthquake ground motions on a shaking table. The model structure with aspect ratio of 1.5:1 in plan was initially tested in the longitudinal direction for several earthquakes with peak ground acceleration (PGA) up to 0.5g. Toppling of end gables (above the eaves line) and minor to moderate cracking around window and door piers was observed in this phase. The structure was then rotated 90º and tested in the transverse (short) direction for ground motions with PGA up to 0.8g. Partial out-of-plane failure of the face loaded walls in the second storey and global rocking of the model was observed in this phase. A finite element analysis and a mechanism analysis are conducted to assess the dynamic properties and lateral strength of the model house. Seismic fragility function of URM houses is developed based on the experimental results. Damping at different phases of the response is estimated using an amplitude dependent equivalent viscous damping model. Financial risk of similar URM houses is then estimated in term of expected annual loss (EAL) following a probabilistic financial risk assessment framework. Risks posed by different levels of damage and by earthquakes of different frequencies are then examined.