Education Policy | Post Primary | Preschool | Primary | Tertiary | Search

 


UC team Leading Bridge Construction Testing In Christchurch

UC team Leading Bridge Construction Testing In Christchurch

February 15, 2013

University of Canterbury (UC) postgraduate engineering students are working on new solutions to help improve the seismic performance of Christchurch’s damaged bridge columns and accelerate the recovery of bridges in the rebuild.

Generally, bridge columns, cap beams and footings are constructed using cast-in-place concrete. This method has been adopted as standard practice in the construction of bridge substructures worldwide.

But fresh research at UC, led by PhD candidate Mustafa Mashal and masters student Sam White, is looking at ways of increasing bridge construction speed, quality and performance through the use of precast concrete. See the link below to view UC bridge testing: http://www.youtube.com/watch?v=oIn6ZNLnpuU

The accelerated construction methods aim to reduce disruption and improve performance when replacing damaged bridges around Christchurch, and for building new infrastructure in seismically active regions. As part of the UC research, experimental testing is being undertaken to compare the performance of precast bridge substructures with cast-in-place substructures.

Testing of two seven tonne columns has begun with promising results. The tests are part of a four-year UC research project, ABCD – Advance Bridge Construction and Design, funded by the Natural Hazard Research Platform and led by Dr Alessandro Palermo, senior engineering lecturer at UC.

The Opus bridge team and several Stronger Christchurch Infrastructure Rebuild team (SCIRT) bridge designers assisted at the testing and they were favourably impressed. Further testing will be carried out over the coming weeks.

Opus principal bridge engineer Michael Cowan said the works being conducted by UC is relevant at a time when bridge engineers are looking at ways to improve the efficiency of bridge construction as well as enhance the resilience of new infrastructure.

``This testing is an important step towards a better understanding of how to achieve reliable methods for accelerated bridge construction and incorporating a low damage systems approach into design.’’

The earthquakes imparted key lessons with a number of bridges totally or partially losing their functionality causing significant traffic disruption. SCIRT estimated about 40 percent of the bridge stock needs to be repaired and a few bridges will be replaced.

Dr Palermo said life safety was the primary objective of the engineering community but they are also aiming to limit business disruption after major events.

``The Christchurch rebuild can be the real driver for using new seismic design technologies available from the UC bridge programme.

``Building designers are already moving towards low-damage system technology for both structural and non-structural components. Bridge engineers have to inherit those enhanced concepts and technologies.

``We want to find technical solutions for bridges which are quick to construct and erect on the site; that are resistant to earthquakes and with higher material quality control and more importantly that are cost-competitive,’’ Dr Palermo said.



Photo – 1: - left to right Alessandro Palermo, Sam White and Mustafa Mashal at the UC bridge testing site


Photo – 2: left to right Mustafa Mashal, Alessandro Palermo, Sam White at the UC bridge testing site


ENDS

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 

Francis Cook: Gallipoli: The Scale Of Our War – First Look

Te Papa today allowed media access to their new exhibition Gallipoli: The Scale of Our War . The exhibition was curated with help from Weta Workshop to deliver an immersive, realistic and even disorienting experience. More>>

ALSO:

Bats Theatre: Letters From The Front Brings ANZAC Letters Alive

Inspired by centenary commemorations, improv troupe Best on Tap is producing a show based on real-life letters sent to and from New Zealand soldiers in the First World War. More>>

ALSO:

Publishing: Unity Books On Plan To Close Te Papa Press

Unity Books is alarmed that Te Papa is proposing to suspend publishing by Te Papa Press for 4 or 5 years. Te Papa Press has proven time and time again that it has both award and bestseller capability and fulfils its kaupapa. More>>

ALSO:

Cinema: ‘The Desk’ Featuring Paul Henry To Have NZ Debut

The Documentary Edge Festival is thrilled to announce The Desk as a late entry to its 2015 Programme. The film, featuring local broadcaster Paul Henry, will have its international premiere on May 21 at 10pm at Q Theatre (book now at qtheatre.co.nz) with limited screenings also on offer in Wellington and Auckland. More>>

ALSO:

Art: Considering Feminisms In Aotearoa New Zealand: Two Projects

Feminism is something that has changed our lives. Recently, the activist Marilyn Waring reviewed the impact of feminism in Aotearoa New Zealand and reminded us that just 40 years ago banks wouldn’t lend women money without the guarantee of a man, ... More>>

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Education
Search Scoop  
 
 
Powered by Vodafone
NZ independent news