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Seismic isolation of light frame wood buildings in New Zealand
Research papers, University of Canterbury Library
Seismic isolation is an effective technology for significantly reducing damage to buildings and building contents. However, its application to light-frame wood buildings has so far been unable to overcome cost and technical barriers such as susceptibility of light-weight buildings to movement under high-wind loading. The 1994 Northridge Earthquake (6.7 MW) in the United States, 1995 Kobe Earthquake (6.9 MW) in Japan and 2011 Christchurch Earthquake (6.7 Mw) all highlighted significant loss to light-frame wood buildings with over half of earthquake recovery costs allocated to their repair and reconstruction. This poster presents a value case to highlight the benefits of seismically isolated residential buildings compared to the standard fixed-base dwellings for the Wellington region. Loss data generated by insurance claim information from the 2011 Christchurch Earthquake has been used to determine vulnerability functions for the current light-frame wood building stock. By using a simplified single degree of freedom (SDOF) building model, methods for determining vulnerability functions for seismic isolated buildings are developed. Vulnerability functions are then applied directly in a loss assessment to determine the Expected Annual Loss. Vulnerability was shown to dramatically reduce for isolated buildings compared to an equivalent fixed-base building resulting in significant monetary savings, justifying the value case. A state-of-the-art timber modelling software, Timber3D, is then used to model a typical residential building with and without seismic isolation to assess the performance of a proposed seismic isolation system which addresses the technical and cost issues.
Natalie Kerschner WEMO Photograph 041
Images, UC QuakeStudies
A photograph of the Cranmer Centre on Armagh Street. Bricks have fallen off one of the gables onto the concrete below. The remaining gables have been braced with wood to limit further damage. A cherry picker can be seen below, and there is fencing around the building.
New Zealand Defence Force photograph 700
Images, UC QuakeStudies
A demolished house on Oxford Street in Lyttelton. The wood from the house still lies in a pile on the building site. Wire fencing has been used to create a cordon around the building.
Paul and Sam Corliss's Street Art Photograph (2015:03:22 02:47:16)
Images, UC QuakeStudies
A photograph of street art on Dyers Pass Road at the Silvan Salvage wood and demolition yard. The artwork shows tag writing which says "Teaching old logs new tricks" in big blue capital letters.
Paul and Sam Corliss's Street Art Photograph (2015:03:22 02:47:46)
Images, UC QuakeStudies
A photograph of street art on Dyers Pass Road at the Silvan Salvage wood and demolition yard. The artwork shows tag writing which says "The Silvan Salvage" in white letters and signed by Mesr.
Nomadic Sauna Photograph 2013:10:27 18:50:53
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:50:25
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:50:43
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:50:57
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:42:07
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:25 17:27:21
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:25 17:27:10
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:25 17:27:16
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:57:01
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:25 17:26:51
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:51:39
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:27 18:42:13
Images, UC QuakeStudies
A photograph of people setting up The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Umut Akguzel Photograph 239
Images, UC QuakeStudies
A photograph of a badly-damaged building on the corner of Manchester Street and Gloucester Street. The top storey of the building has collapsed, and the bricks and wood have fallen onto the footpath below.
Diabetes Centre Photograph 039
Images, UC QuakeStudies
A photograph of a member of the Diabetes Centre team working in an office in the Diabetes Centre on Hagley Avenue. Bits of broken wood are lying on the floor in front of the desk.
Spectrum for 28 July 2013
Audio, Radio New Zealand
'Rekindle' is an initiative started since the earthquakes in Canterbury which provides purposeful work for young people by giving them the opportunity to design and fashion furniture from waste wood. Spectrum's Deborah Nation explores 'Rekindle'.
'Needle not moving' as botched EQC re-repairs still coming in - Megan Woods
Audio, Radio New Zealand
Some 10 years on from the devastating Canterbury quakes, the wait is still not over when it comes to law changes needed to improve the Earthquake Commission. The government will not get it done until 2021, if it's re-elected. Meanwhile cases of botched quake repairs needing a fix are still flooding into EQC, Greater Christchurch Regeneration Minister Megan Woods told Checkpoint.
Elizabeth Ackermann Photograph 060
Images, UC QuakeStudies
A photograph of the earthquake damage to the White's Building on Tuam Street, visible through a broken window. The roof of the building has collapsed into the building, a plank of wood breaking through the window.
Nomadic Sauna Photograph 2013:10:27 00:00:00
Images, UC QuakeStudies
A photograph of a group of people standing next to The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Nomadic Sauna Photograph 2013:10:25 17:32:02
Images, UC QuakeStudies
A photograph of a group of people standing next to The Nomadic Sauna on a vacant site on Manchester Street. The Nomadic Sauna was a portable, Native American-inspired sauna made from wood and canvas for FESTA 2013.
Christchurch Press Image: Iain McGregor 2010:09:06 00:25:59
Images, UC QuakeStudies
Photograph captioned by Fairfax, "Major earthquake hits Christchurch. Maling Street in Avonside. From left: Tamatea Briggs (12), Ngarita Briggs (8) and Walton Briggs sit under a makeshift shelter while they wait for a wood fire to boil water".
Christchurch: The Transitional City Pt IV, pages 326-327: Sanctioned Graff…
Articles, UC QuakeStudies
A PDF copy of pages 326-327 of the book Christchurch: The Transitional City Pt IV. The pages document the transitional project 'Sanctioned Graffiti Across the City'. Photos: Reuben Woods, Wongi FREAK Wilson (Deadpool Production, Graffalaphabet, BDS Full Production).
BeckerFraserPhotos March 2011 photograph 148
Images, UC QuakeStudies
Water has swept grit and splinters of wood onto the footpath outside the Durham Street Methodist Church. In the background of the photograph a piece of one of the church's roof beams with its steel brace can be seen.
Elizabeth Ackermann Photograph 121
Images, UC QuakeStudies
A photograph of a statue lying on planks of wood outside the Canterbury Museum. The statue fell during the 22 February 2011 earthquake, and the head broke off. A message on the exposed neck reads, "My head is at Christ College".
BeckerFraserPhotos September 2010 photograph 071
Images, UC QuakeStudies
A broken driveway on Avonside Drive. The concrete slabs on the driveway have lifted during the earthquake, creating a large crack in the driveway. The crack has been filled with tiles and wood but the rubbish bins have still fallen in.
BeckerFraserPhotos October 2010 photograph 090
Images, UC QuakeStudies
The driveway of a house on Avonside Drive. One of the concrete slabs has lifted and the owner has tried to fill the gap with blocks of wood. Unfortunately, these have come loose and are sticking out of the hole.