Neighbours across the river showing earthquake damage. Hotel Grand Chancellor in the background. File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-044 From the collection of Christchurch City Libraries.
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Nick Rogers, project director, Canterbury Land Assessment for Tonkin & Taylor. Tonkin & Taylor is the environmental and engineering consultancy doing the Canterbury land damage assessment work for EQC and the Canterbury Earthquake Recovery Authority.
This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.
This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-033 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-037 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-029 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-036 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-032 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-031 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-026 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-027 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-038 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-035 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-030 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-034 From the collection of Christchurch City Libraries.
Damaged double-brick wall.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-003 From the collection of Christchurch City Libraries.
Aftermath of September 4th Earthquake in Canterbury NZ. Bridge Street, South Brighton, Christchurch.
Aftermath of September 4th Earthquake in Canterbury NZ. Bridge Street, South Brighton, Christchurch.
On 14 November 2016 a magnitude Mw 7.8 earthquake struck the upper South Island of New Zealand with effects also being observed in the capital city, Wellington. The affected area has low population density but is the largest wine production region in New Zealand and also hosts the main national highway and railway routes connecting the country’s three largest cities of Auckland, Wellington and Christchurch, with Marlborough Port in Picton providing connection between the South and North Islands. These transport facilities sustained substantial earthquake related damage, causing major disruptions. Thousands of landslides and multiple new faults were counted in the area. The winery facilities and a large number of commercial buildings and building components (including brick masonry veneers, historic masonry construction, and chimneys), sustained damage due to the strong vertical and horizontal acceleration. Presented herein are field observations undertaken the day immediately after the earthquake, with the aim to document earthquake damage and assess access to the affected area.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-001 From the collection of Christchurch City Libraries.
File reference: CCL-2011-08-12-CanterburyPublic Library pre-demolition-004 From the collection of Christchurch City Libraries.
Damage to Opawa Community Church.
Damage to Worcester Street shops.
Damaged buildings on Hereford Street.
Damage to the Cranmer Centre.
Damaged house on Waitaki Street.
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