Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


UC project looking at impact of Wellington earthquake

UC summer project looking at impact of Wellington earthquake building movements
 
November 17, 2013
 
A University of Canterbury (UC) summer research project is looking at the impact of building movements in the July and August Seddon earthquakes.
 
UC civil and natural resources engineer Dr Brendon Bradley says the project is vitally important as seismic response of buildings and other structures during earthquakes is highly complex with many assumptions made in conventional seismic design and assessment. 
 
``Incorrect assumptions can be catastrophic due to excessive floor accelerations and building displacements.  One of the principal means by which such assumptions can be assessed is by making use of the actual seismic response of buildings which have been ‘wired-up’ with instruments to measure their response during earthquakes.
 
``Several instrumented-buildings in Wellington were subjected to strong ground motions in the Seddon earthquakes. The aim of this project is to use signal processing analysis and simple structural analysis to assess common assumptions which are used in the design and assessment of structures.
 
``We will have a better understanding of the dynamics of the response of simple systems and how much buildings swayed in the magnitude 6.6 July and August Seddon earthquakes this year following our research.’’
 
Dr Bradley and UC summer scholarship student Ethan Thomson will research in the coming months to study the way in which Wellington buildings swayed in the earthquakes.
 
They will focus on 10 Wellington commercial and industrial buildings of different heights and construction styles.
 
The project will make use of buildings equipped with seismic instrumentation, which records building movement at multiple locations at the time the earthquakes occurred.   
 
``The observed records will be used to scrutinise the accuracy of numerical models which are typically used in the design and assessment of structures for earthquakes.  Based on an understanding of the limitations of conventional methods, improved procedures can be developed for use in the future. The pilot project will span about six months and results are expected in the first half of next year.’’
 
UC masters student Sam McHattie and Dr Bradley examined two buildings which were fixed with instruments before the 2010 and 2011 Canterbury earthquakes – the UC physics building and the CBD police station.  Lessons learned from examining those buildings are also being up taken by the engineering profession.
 
Dr Bradley recently received $800,000 of a Rutherford Discovery Fellowship to investigate the mysteries of unresolved ground motion and geotechnical case histories from the 2010 and 2011 earthquakes. His research will have a national and international impact in the assessment and mitigation of earthquake hazards in major cities.
 
About 150 UC students will be undertaking scholarship research projects this summer. On top of that well over 700 students have enrolled in more than 80 summer courses.
 
Around 600 tradesmen will be on campus over the summer as the University’s building remediation programme ramps up.

ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Half Empty: Dairy Prices Drop To Lowest Since August 2009

Dairy product prices fell to the lowest level in more than five years in the latest GlobalDairyTrade auction, led by declines in butter milk powder and whole milk powder.

”Stocks of dairy commodities are building across the globe due to Russia’s current ban on importing dairy products from many Western nations, and a lack of urgency from Chinese buyers, while at the same time global milk supplies are expanding,” AgriHQ dairy analyst Susan Kilsby said in a note. More>>

 

Slippage: NZ Universities Still In Top 3% Globally

This year the University of Auckland ranked 175 (down from 164 last year); the University of Otago ranked 251-275th (down from 226-250), both Victoria University of Wellington and the University of Canterbury held their ranks (at 276-300thand 301-350 respectively), while the University of Waikato dropped from 301-350 to 351-400. More>>

ALSO:

Gordon Campbell:
On The Last Rites For The TPP

The Trans Pacific Partnership trade deal is one of those litmus issues that has always had more to do with one’s place on the political spectrum than with any imminent reality... For the TPP’s friends and foes alike though, the end now seems nigh. More>>

Gordon Campbell: On The Farcical Elevation Of David Seymour

With the election won, it’s time to find jobs for the boy. David Seymour is the Act Party’s latest scrounger to be rewarded by the National Party, and not only with a seat in Parliament. More>>

ALSO:

As Key Mulls Joining ISIS Fighting: McCully Speech To UN Backs Security Council Bid

It is an honour to address you today on behalf of the Prime Minister and Government of New Zealand. Our General Election took place last week - our Prime Minister Rt Hon John Key is engaged in forming a government and that is why he is unable to be here in New York... More>>

ALSO:

Labour: Cunliffe Triggers Party Wide Leadership Contest

David Cunliffe has resigned as Labour Leader, but says he will seek re-election... If there is any contest the election will have to go through a process involving the party membership and union affiliates. More>>

ALSO:

Flyover Appeal: Progress And Certainty, Or Confusion And More Delays?

Lindsay Shelton: The Transport Agency, embarrassed by the rejection of its flyover alongside the Basin Reserve, says it’s appealing because the decision could “constrain progress.” Yet for most clear-sighted Wellingtonians a 300-metre-long concrete structure above Kent and Cambridge Terraces would in no way be seen as progress… More>>

ALSO:

Gordon Campbell: On Cunliffe’s Last Stand

Right now, embattled Labour leader David Cunliffe has three options. None of them are particularly attractive for him personally, or for the Labour Party... More>>

ALSO:

Key Seeking 'New Ideas': Look To Children’s Commissioner On Poverty - Greens

John Key should not reinvent the wheel when it comes to ideas for tackling child poverty, and instead look to the recommendations of the Children’s Commissioner’s Expert Group on Child Poverty, Green Party co-leader Metiria Turei says. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news