Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New bridge built in two weeks

04.06.2008
With new bridge-building materials, industrial production methods, and an efficient construction process, it will be possible to start using a bridge only two weeks after construction starts on the site. This is shown in a new dissertation from Chalmers University of Technology.

A pilot study of the new bridge concept, the i-bridge, is included in Peter Harryson’s doctoral dissertation in concrete construction at Chalmers. The bridge consists of extremely light sections that are assembled on site.

The load-bearing parts consist of v-shaped fiberglass beams that are reinforced with carbon fibers on the underside. The beams interact with a thin bridge deck that is prefabricated out of steel-fiber-reinforced cement with extremely high strength. Since these materials are very durable, they are advantageous in a life-cycle perspective, and they are highly suitable for industrial construction.

However, these materials are not in use in the new construction of bridges today.

“The new bridge type is a construction that projects several years into the future, but the study shows that it would be technologically possible to build this bridge today if the concept is further elaborated,” says Peter Harryson. “However, at present the economic conditions are constrained by the major investments that would be needed to start production, and by the high prices for fiber-composite materials.”

Today the new type of bridge is estimated to cost more than twice as much as a conventional bridge. But the economic potential of the bridge concept can be enhanced considerably if the economic calculations are done in another way. Besides the shorter construction time, there are several advantages both from a life-cycle perspective and in terms of the working environment that could be valued higher.

The project has been part of (the Swedish Governmental Agency for Innovation Systems) Vinnova’s research program “Road, Bridge, Tunnel.” Peter Harryson has been an industrial doctoral candidate with the Swedish Road Administration, which has provided funding.

The dissertation, titled Industrial Bridge Engineering – Structural developments for more efficient bridge construction, was publicly defended on May 29.

Sofie Hebrand | alfa
Further information:
http://publications.lib.chalmers.se/cpl/record/index.xsql?pubid=70808

More articles from Architecture and Construction:

nachricht Smart homes will “LISTEN” to your voice
17.01.2017 | EML European Media Laboratory GmbH

nachricht Designing Architecture with Solar Building Envelopes
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

All articles from Architecture and Construction >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Arctic melt ponds form when meltwater clogs ice pores

24.01.2017 | Earth Sciences

Synthetic nanoparticles achieve the complexity of protein molecules

24.01.2017 | Life Sciences

PPPL physicist uncovers clues to mechanism behind magnetic reconnection

24.01.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>