St John's Presbyterian Church on Winchester Street in Lyttelton. The ground around the church is strewn with masonry that has fallen from the church's walls and collapsed tower. The building's front door has been red-stickered and a sign that reads "No entry" is stuck to it.
This paper describes pounding damage sustained by buildings and bridges in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Almost all of this pounding damage occurred in masonry buildings, further 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. Pounding damage in bridges was found to be relatively minor and infrequent in the Christchurch earthquake.
An excavator bunching up scrap metal as part of efforts to clear the site of the demolished Hillary and Marshall Limited building on Manchester Street. A pile of scrapped wooden components can be seen at the back of the site, and a pile of masonry is visible in the foreground.
A house on Avonside Drive showing damage from the 4 September 2010 earthquake. Numerous cracks in the masonry can be seen, and several sections of brick have fallen off the walls. The building's porch has also collapsed. A pile of dried liquefaction is visible in the driveway.
A view across Battersea Street in Sydenham to Churchill's Tavern, which has been badly damaged in the 22 February 2011 earthquake. Masonry from the building's top storey has collapsed onto the footpath and several of its windows have fallen out. A member of the New Zealand Police Force is walking across Colombo Street in the background.
A view across Worcester Street in Linwood to a block of shops, including Easy Traders Whiteware and Furniture. Masonry, structural components and the Easy Traders building's veranda have collapsed onto the road. The whole back section of the shops has also collapsed. The site is enclosed by a safety fence.
Scaffolding that has been constructed on the Manchester Street face of the Octagon Live Restaurant (formerly Trinity Church), which is being repaired. Masonry has fallen from one of the building's gables, and the resultant gap has been weather proofed with plywood and a tarpaulin. The site has been enclosed in a safety fence that cuts off one lane of the road.
Scaffolding that has been constructed on the Manchester Street face of the Octagon Live Restaurant (formerly Trinity Church), which is being repaired. Masonry has fallen from one of the building's gables, and the resultant gap has been weather proofed with plywood and a tarpaulin. The site has been enclosed in a safety fence that cuts off one lane of the road.
A view across Worcester Street in Linwood to a block of shops showing severe damage after the 22 February 2011 earthquake. The businesses include Talon Arms and Wick's Fish. Masonry and structural components from the buildings has collapsed onto the footpath and road. A sign in front of Talon Arms has been spray painted with the words, "Guns gone".
St John's Presbyterian Church on Winchester Street in Lyttelton. The ground around the church has been strewn with masonry from the church's walls and collapsed tower. The building's front door has been red-stickered and a sign that reads "No entry" is stuck to it. The spire of the collapsed tower has fallen in front of the church, which has been enclosed by a safety fence.
Scaffolding that has been constructed on the Manchester Street face of the Octagon Live Restaurant (formerly Trinity Church), which is being repaired. Masonry has fallen from one of the building's gables, and the resultant gap has been weather proofed with plywood and a tarpaulin. The site has been enclosed in a safety fence that cuts off one lane of the road.
A view of part of the former Canterbury Public Library complex after the 22 February 2011 earthquake. On the left the 1870s section is visible. It has been red-stickered and the ground around it has been spray painted with the words, "Danger, wall". The building on the right is the former Librarian's House, which was built in 1894. It has been enclosed in a safety fence, and a section of masonry from its gable has collapsed. Containers have been stacked between the buildings to reinforce their walls.
The letters 'CHCH' are built from broken masonry and stand amongst the chaos of broken buildings. It is the usual acronym for the city of Christchurch; here however it stands for 'catastrophe', 'havoc', 'care', 'help'. Context - on 22 February 2011 a 6.3 magnitude earthquake struck in Christchurch, which has probably killed more than 200 people (at this point the number is still not known) and caused very severe damage. The courage, generosity and 'can do' attitude of the people of Christchurch has been wonderful but the whole country and is contributing to the effort to get Christchurch back on its feet as well as aid from overseas. Quantity: 1 digital cartoon(s).
On 22 February 2011,a magnitude Mw 6.3 earthquake occurred with an epicenter located near Lyttelton at about 10km from Christchurch in Canterbury region on the South Island of New Zealand (Figure 1). Since this earthquake occurred in the midst of the aftershock activity which had continued since the 4 September 2010 Darfield Earthquake occurrence, it was considered to be an aftershock of the initial earthquake. Because of the short distance to the city and the shallower depth of the epicenter, this earthquake caused more significant damage to pipelines, traffic facilities, residential houses/properties and multi-story buildings in the central business district than the September 2010 Darfield Earthquake in spite of its smaller earthquake magnitude. Unfortunately, this earthquake resulted in significant number of casualties due to the collapse of multi-story buildings and unreinforced masonry structures in the city center of Christchurch. As of 4 April, 172 casualties were reported and the final death toll is expected to be 181. While it is extremely regrettable that Christchurch suffered a terrible number of victims, civil and geotechnical engineers have this hard-to-find opportunity to learn the response of real ground from two gigantic earthquakes which occurred in less than six months from each other. From geotechnical engineering point of view, it is interesting to discuss the widespread liquefaction in natural sediments, repeated liquefaction within short period and further damage to earth structures which have been damaged in the previous earthquake. Following the earthquake, an intensive geotechnical reconnaissance was conducted to capture evidence and perishable data from this event. The team included the following members: Misko Cubrinovski (University of Canterbury, NZ, Team Leader), Susumu Yasuda (Tokyo Denki University, Japan, JGS Team Leader), Rolando Orense (University of Auckland, NZ), Kohji Tokimatsu (Tokyo Institute of Technology, Japan), Ryosuke Uzuoka (Tokushima University, Japan), Takashi Kiyota (University of Tokyo, Japan), Yasuyo Hosono (Toyohashi University of Technology, Japan) and Suguru Yamada (University of Tokyo, Japan).