Search

found 2787 results

Images, UC QuakeStudies

Members of the USAID Disaster Assistance Response Team (DART) and New Zealand Urban Search and Rescue breaking through the floor of a building which was severely damaged during the 22 February 2011 earthquake.

Images, UC QuakeStudies

Members of the USAID Disaster Assistance Response Team (DART) and New Zealand Urban Search and Rescue breaking through the floor of a building which was severely damaged during the 22 February 2011 earthquake.

Research papers, The University of Auckland Library

During the Christchurch earthquake of February 2011, several midrise buildings of Reinforced Concrete Masonry (RCM) construction achieved performance levels in the range of life safety to near collapse levels. These buildings were subjected to seismic demands higher than the building code requirements of the time and higher than the current New Zealand Loadings Standard (NZS-1170.5:2004). Structural damage to these buildings has been documented and is currently being studied to establish lessons to be learned from their performance and how to incorporate these lessons into future RCM design and construction practices. This paper presents a case study of a six story RCM building deemed to have reached the near collapse performance level. The RCM walls on the 2nd floor failed due to toe crushing reducing the building’s lateral resistance in the east-west direction. A nonlinear dynamic analysis on a 3D model was conducted to simulate the development of the governing failure mechanism. Preliminary analysis results show that the damaged walls were initially under large compression forces from gravity loads which caused increase in their lateral strength and reduced their ductility. After toe crushing failure developed, axial instability of the model was prevented by a redistribution of gravity loads.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Centre on the corner of Montreal and Armagh Streets. The front wall of the building has crumbled, and the bricks have spilt onto the pavement below.

Images, UC QuakeStudies

A photograph looking south-west along Williams Street, from the Williams Street bridge, in Kaiapoi. In the distance is the rebuilt Blackwell's Department Store. The department store was rebuilt after the previous building was damaged in the 2010 and 2011 Canterbury earthquakes.

Images, UC QuakeStudies

A photograph of the rebuilt Blackwell's Department Store on the corner of Williams Street and Raven Quay in Kaiapoi. The department store was rebuilt after the previous building was damaged in the 2010 and 2011 Canterbury earthquakes.

Images, UC QuakeStudies

Members of the USAID Disaster Assistance Response Team (DART) and the New Zealand Urban Search and Rescue, breaking through the floor of a building which was severely damaged during the 22 February 2011 earthquake.