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Images for earthquake strengthening; more images...

Images, Alexander Turnbull Library

Text at the top of the cartoon reads 'NZ city strengthening?' A whole city enclosed in a glass dome and balanced on huge springs intended to make it earthquake resistant rocks as another aftershock hits. Context - Two earthquakes and hundreds of aftershocks have hit Christchurch, the first on 4 September 2010 and a second more devastating one on 22 February 2011. There has been great emphasis on making heritage buildings that are rebuilt and all new buildings earthquake resistant. The example in the cartoon is perhaps a Springs-with-damper base isolator. Quantity: 1 digital cartoon(s).

Images, Canterbury Museum

One landscape colour digital photograph taken on 19 November 2011 showing the alleyway next to 29 London Street. These steps provided access to the Wunderbar and the Monsta Bar (closed). Visible to the left is the Lyttelton Coffee Company building being repaired. Prior earthquake strengthening enabled the Lyttelton Coffee Company to undertake w...

Research papers, University of Canterbury Library

An as-built reinforced concrete (RC) frame building designed and constructed according to pre-1970s code design construction practice has been recently tested on the shake table at the University of Canterbury. The specimen, 1/2.5 scaled version of the original prototype, consists of two 3-storey 2-bay asymmetric frames in parallel, one interior and one exterior, jointed together by transverse beams and floor slabs. Following the benchmark test, a retrofit intervention has been proposed to rehabilitate the tested specimen. In this paper, detailed information on the assessment and design of the seismic retrofit procedure using GFRP (glass fibre reinforced polymer) materials is given for the whole frame. Hierarchy of strength and sequence of events (damage mechanisms) in the panel zone region are evaluated using a moment-axial load (M-N) interaction performance domain, according to a performance-based retrofit philosophy. Specific limit states or design objectives are targeted with attention given to both strength and deformation limits. In addition, an innovative retrofit solution using FRP anchor dowels for the corner beam-column joints with slabs is proposed. Finally, in order to provide a practical tool for engineering practice, the retrofit procedure is provided in a step-by step flowchart fashion.

Videos, UC QuakeStudies

A video about field trials conducted by the Department of Building and Housing at Queen Elizabeth II Park in Christchurch. Fifty kilograms of explosives are being used to simulate a magnitude-4 earthquake at a distance of 10 kilometres. The aim of the trials is to test soil-strengthening techniques that could be used to repair damaged land in Christchurch.

Images, Alexander Turnbull Library

A man struggles to hold upright a rigid and obstinate man who is shaking like an earthquake. The man pushing says 'That's NOT what we meant by quake strengthening Aaron!' Context: Aaron Gilmore is a councillor, a new councillor, and has been bucking the trend when it comes to voting for the CEO Tony Marryatt who is tied up with CERA, the canterbury earthquake authority, by publicly making his personal views known to the public on radio etc before the voting has been cast. Councillors are meant to present an unbiased facade when it comes to voting. Gilmore was talking to the media and in obvious support of Marryatt....the result being that there was pressure on Gilmore to abstain from voting and stand down from the process. Quantity: 1 digital cartoon(s).

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.