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Research papers, The University of Auckland Library

Micro - electro - mechanical system (MEMS) based accelerometers are now frequently used in many different parts of our day - to - day lives. It is also increasingly being used for structural testing applications. Researchers have had res ervation of using these devices as they are relatively untested, but now with the wider adoption, it provides a much cheaper and more versatile tool for structural engineering researchers. A number of damaged buildings in the Christchurch Central Business District (CBD) were instrumented with a number of low - cost MEMS accelerometers after the major Christchurch earthquakes. The accelerometers captured extremely high quality building response data as the buildings experienced thousands of aftershocks. This d ata set was amongst one of only a handful of data set s available around the world which provides building response data subjected to real ground motion. Furthermore, due to technological advances, a much larger than usual number of accelerometers has been deployed making the data set one of the most comprehensive available. This data set is utilised to extract modal parameters of the buildings. This paper summarises the operating requirements and preference for using such accelerometers for experimental mod al analysis. The challenges for adapting MEMS based devices for successful modal parameters identification are also discussed.

Research papers, Victoria University of Wellington

This paper begins with a discussion of the history of negligent manslaughter in New Zealand and its development from the standard of ordinary negligence to the current test of a “major departure” from the expected standard of care, as set out under s 150A of the Crimes Act 1961. The paper then examines failings in s 150A’s current application, arguing that the “major departure” test has created injustices due to its strictly objective nature. Two examples of this are discussed in-depth, Bawa-Garba v R (UK) where a doctor was convicted of grossly negligent manslaughter for the death of her patient; and the decision not to prosecute the negligent engineers of the CTV building which collapsed in the Christchurch earthquake of 2011. The paper discusses three potential resolutions moving forward. It concludes that a more subjective interpretation of the wording of s 150A, which takes account of circumstances excusing or condemning a defendant’s conduct, would prevent future injustices and be a reasonably open interpretation on the wording of s 150A.

Articles, Christchurch uncovered

And just like that, somehow we’re only three sleeps from Christmas and another year has flown by. It always seems like time speeds up once we hit September and that the final three months of the year disappear in the … Continue reading →

Images, eqnz.chch.2010

20140522_8951_EOS M-22 Demolition Of what many in Christchurch know as the Millers building, but for many recent years was the home to the Christchurch City Council, till just a week or two before the first earthquake of 2010. Now, in mid-2014 it is finally being demolished after nearly 45 months empty. A bus is leaving the new (temporary) bu...

Images, eqnz.chch.2010

20140521_1080_1D3-24 It has started! Removal of the double-glazed windows is underway at my "red zone" house, now owned by the Government of New Zealand. Sold to CERA (the government agency) in October 2012 and has remained empty since, despite having little damage, apart from the tilt to the front from the land damage that occurred during the...

Images, eqnz.chch.2010

A sight becoming more common in post-earthquake Christchurch - lifting earthquake-affected buildings to allow their foundations to be replaced and or completely replaced.

Images, eqnz.chch.2010

Overlooking McCormacks bay out across the city with the Southern Alps as a backdrop. There is still a strong effect from the July 11, 2011 Volcanic erruption (Puyehue) in Chile. Ash made it over to New Zealand causing very strong colours at sunset. The colours have not been artificially changed and its not a mash up. The parts of the city (and...

Images, eqnz.chch.2010

Another house has gone from Seabreeze Close, Pacific Park, Bexley, leaving just the concrete base, a few floor tiles and the smashed toilet (throne). Houses are being demolished (85%) or deconstructed/shifted (15%) as a result of land damage in the major earthquakes of 4th September 2010, 22nd February 2011, 13th June 2011 and 23rd December 2...

Images, eqnz.chch.2010

Christchurch's Graffiti House... This Cranford Street house was damaged in the earthquakes and is due for demolished this week but has been given a Graffiti Makeover by local Street Artists.

Images, eqnz.chch.2010

20140927_2219_1D3-24 Planting natives at Harold Henry Park A planting of native bushes and trees in the old children's playground area in Bexley, Organised by the Facebook group Avon River Park and assisted by ex Bexley residents. This is right in the middle of the Bexley red zone with most houses removed or demolished now. #5832

Images, eqnz.chch.2010

Today (04/09/14) marks the fourth anniversary since the first earthquake rocked the city and greater Christchurch area. That first quake was magnitude 7.1, and luckily there was only one fatality (possible a heart attack). Since then we have had over 14,000 quakes, most very small in magnitude, but well over 500 of magnitude 4 or greater. 5...

Images, eqnz.chch.2010

The sign reads: The CTV Building was headquarters of Canterbury Television (CTV) and also housed King’s Education language School, a medical clinic, Hair Consultants, Relationship Services and a nursing school. On February 22nd 2011 the building collapsed as a result of a major earthquake. Sadly, 115 people who were in the building lost their l...