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

 

Christchurch: Fixing Town Hall Means Performing Arts Precinct Rethink

Christchurch City Council’s decision to spend $127.5 million fixing the Town Hall means not all the land currently designated for the city’s Performing Arts Precinct is required, Canterbury Earthquake Recovery Minister Gerry Brownlee says. More>>

ALSO:

With Hunters & Collectors: The Rolling Stones Announce New Auckland Date

It’s the news New Zealand has been waiting for. The Rolling Stones today confirmed the rescheduled dates and venues for both the Australian and New Zealand legs of their highly anticipated ’14 On Fire’ tour. Now, Frontier Touring is also delighted ... More>>

ALSO:

Flying Things: Conchords, Pretties Help BATS Fly Home

The launch of BATS theatre’s fundraising campaign has taken off – with a bit of help from their friends. And with friends like theirs… An event last night hosted by Te Radar at Wellington’s latest waterfront venue, Shed 6, featured Fly My Pretties and, in a dream-come-true scenario, Flight of the Conchords. More>>

ALSO:

Environment: Zoo’s Own Wētā Workshop Produces Rare Giants For Release

Following unprecedented breeding and rearing success, Auckland Zoo is today releasing 150 of New Zealand’s largest giant wētā, the wētā punga, onto pest-free Motuora Island in the Hauraki Gulf. A further 150 will be released onto Tiritiri Matangi next month. More>>

Girls On Film: Divergent Hits The Big Screen

n January, Catching Fire (the second film in the Hunger Games series) not only became the biggest US box office success of 2013 : it also became the first film starring a female actor (ie. Jennifer Lawrence) to top the annual domestic earnings chart since The Exorcist, 40 years ago. More>>

ALSO:

Wellington.Scoop: No Travel Sanctions For Russian Billionaire’s Superyacht

On the same day that New Zealand announced travel sanctions against selected Russians, a Russian billionaire’s superyacht berthed in Wellington Harbour. More>>

ALSO:

Mental Health: UC Researchers Believe Robots Can Persuade People To Conform

A team of University of Canterbury (UC) researchers and scientists believe robots can persuade people to conform through group pressure... ``Our results showed that robots can induce conformity but to a significantly lesser degree than humans." More>>

NZ On Air: Local Content Holds Steady At 32% Of Television Schedules

Since 1989 NZ On Air has measured local free-to-air television content. The report compares the schedules of the six national free-to-air channels, to observe trends and changes in the local content landscape. More>>

Arts Fest: 2014 New Zealand Festival A Spectacular Celebration

The New Zealand Festival welcomed the world to Wellington over 24 days (21 Feb – 16 Mar) of arts events across the city. “[current figures show] slight increase on the 110,000 tickets issued in 2012. It’s a great result.” More>>

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
Education
Search Scoop  
 
 
Powered by Vodafone
NZ independent news