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Rethinking steel in construction

Rethinking steel in construction Editorial The construction market is in costs by at least 34 per cent since the building is lighter and need of a major overhaul and less foundation area is necessary. The research also found must adapt to meet today’s that using the steel framing components in scenario two, challenges such as speed of you can use large-capacity steel deck trailers rather than construction, impact on the the smaller flat-bed trailers used in scenario one to trans- urban environment, growing port the concrete slabs. As a result, construction requires need for taller structures and fewer trucks, significantly reducing site traffic and reducing environmental impact. As transportation costs by 34 per cent. So how does this ad- cities become more populated, dress key construction challenges? it is much harder to construct Firstly, available land is becoming increasingly scarce and new buildings, particularly therefore expensive, so it is crucial that buildings utilise as high rise, using older methods little space as possible while providing maximum capacity. of construction. With new This can traditionally only be achieved with high rise build- Prof. Dr. Olivier Vassart buildings, speed of construc- ings, where the use of steel beams allows additional floors tion is key in order to make to be added without increasing the height of the building. projects financially viable and cause minimum impact on Secondly, ensuring construction projects are completed the surrounding area. There is also a need for greater flexi- within budget is of vital importance. Again the research bility to cope with the ever changing demands from occu- demonstrates that using optimised steel solutions, costs are piers. This has made urban planning more complex, which significantly reduced and the faster build time allows the requires a fresh look into the way we construct buildings. As building to be occupied sooner. long-standing experts in the global steel construction mar- Another key benefit of using best-in-class steel is that it can ket, our research & development team has conducted an reduce the disruption that construction can have on an in-depth analysis to come up with the best-in-class steel solu- urban environment, by employing large-capacity steel deck tion for buildings, which can deliver substantial economic trailers rather than the smaller flatbed trailers used for con- benefits for all key stakeholders in the construction sector. crete slabs. In order to do this, our team, supported by internationally Cities around the world are becoming more heavily popu- renowned experts, has created two construction scenarios: lated. Therefore if you can reduce site traffic you can re- one uses a mix of steel and traditional construction mate- duce road closures, leading to less disruption in the city rials (scenario one), and the other uses predominately best- centre. Subsequently, this leads to reduced noise levels, in-class steel products (scenario two). Both scenarios com- CO emissions and dust creation, which can have a major pared key building components, such as structure, floor, impact in dense urban surroundings. Another important facade and interiors, to establish which delivered better factor is the easy recycling of steel. This can be taken even outcomes in relation to three core areas; economic via- further as re-use of steel can remove most of the negative bili ty, sustainability and flexibility. The results found a environmental impacts which are by-products of the pro- number of key benefits when using scenario two. For ex- duction process. Sustainable construction has never been ample, the use of steel floor beams with large web open- more important, and the construction industry is responsi- ings saves on average 30 cm per floor, which theoretically ble for more than 40 per cent of global carbon emissions. translates into an additional floor every eight to nine sto- Ultimately we want to promote the best solution for each reys. Another key finding was that with scenario two using project and encourage greater collaboration across all dis- steel sheets instead of concrete hollow slabs to construct ciplines, not only to streamline various processes but also the floors, each floor could be erected up to twice as fast the chosen materials to deliver the best outcome. as in the first scenario, resulting in a 24 per cent construc- tion cost saving. The faster construction time will ulti- mately reduce the period of financing and mean buildings can become operational sooner, providing a quicker return on investment. Also when comparing the two scenarios, scenario two used long steel beams to create longer free spans without intermediate columns. The scenario was also 50 per cent Olivier Vassart lighter than scenario one, which can reduce foundation CEO Steligence® © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin · Steel Construction 12 (2019), No. 2 69 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Steel Construction: Design and Research Wiley

Rethinking steel in construction

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Publisher
Wiley
Copyright
"© 2019 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin"
ISSN
1867-0520
eISSN
1867-0539
DOI
10.1002/stco.201970203
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Abstract

Editorial The construction market is in costs by at least 34 per cent since the building is lighter and need of a major overhaul and less foundation area is necessary. The research also found must adapt to meet today’s that using the steel framing components in scenario two, challenges such as speed of you can use large-capacity steel deck trailers rather than construction, impact on the the smaller flat-bed trailers used in scenario one to trans- urban environment, growing port the concrete slabs. As a result, construction requires need for taller structures and fewer trucks, significantly reducing site traffic and reducing environmental impact. As transportation costs by 34 per cent. So how does this ad- cities become more populated, dress key construction challenges? it is much harder to construct Firstly, available land is becoming increasingly scarce and new buildings, particularly therefore expensive, so it is crucial that buildings utilise as high rise, using older methods little space as possible while providing maximum capacity. of construction. With new This can traditionally only be achieved with high rise build- Prof. Dr. Olivier Vassart buildings, speed of construc- ings, where the use of steel beams allows additional floors tion is key in order to make to be added without increasing the height of the building. projects financially viable and cause minimum impact on Secondly, ensuring construction projects are completed the surrounding area. There is also a need for greater flexi- within budget is of vital importance. Again the research bility to cope with the ever changing demands from occu- demonstrates that using optimised steel solutions, costs are piers. This has made urban planning more complex, which significantly reduced and the faster build time allows the requires a fresh look into the way we construct buildings. As building to be occupied sooner. long-standing experts in the global steel construction mar- Another key benefit of using best-in-class steel is that it can ket, our research & development team has conducted an reduce the disruption that construction can have on an in-depth analysis to come up with the best-in-class steel solu- urban environment, by employing large-capacity steel deck tion for buildings, which can deliver substantial economic trailers rather than the smaller flatbed trailers used for con- benefits for all key stakeholders in the construction sector. crete slabs. In order to do this, our team, supported by internationally Cities around the world are becoming more heavily popu- renowned experts, has created two construction scenarios: lated. Therefore if you can reduce site traffic you can re- one uses a mix of steel and traditional construction mate- duce road closures, leading to less disruption in the city rials (scenario one), and the other uses predominately best- centre. Subsequently, this leads to reduced noise levels, in-class steel products (scenario two). Both scenarios com- CO emissions and dust creation, which can have a major pared key building components, such as structure, floor, impact in dense urban surroundings. Another important facade and interiors, to establish which delivered better factor is the easy recycling of steel. This can be taken even outcomes in relation to three core areas; economic via- further as re-use of steel can remove most of the negative bili ty, sustainability and flexibility. The results found a environmental impacts which are by-products of the pro- number of key benefits when using scenario two. For ex- duction process. Sustainable construction has never been ample, the use of steel floor beams with large web open- more important, and the construction industry is responsi- ings saves on average 30 cm per floor, which theoretically ble for more than 40 per cent of global carbon emissions. translates into an additional floor every eight to nine sto- Ultimately we want to promote the best solution for each reys. Another key finding was that with scenario two using project and encourage greater collaboration across all dis- steel sheets instead of concrete hollow slabs to construct ciplines, not only to streamline various processes but also the floors, each floor could be erected up to twice as fast the chosen materials to deliver the best outcome. as in the first scenario, resulting in a 24 per cent construc- tion cost saving. The faster construction time will ulti- mately reduce the period of financing and mean buildings can become operational sooner, providing a quicker return on investment. Also when comparing the two scenarios, scenario two used long steel beams to create longer free spans without intermediate columns. The scenario was also 50 per cent Olivier Vassart lighter than scenario one, which can reduce foundation CEO Steligence® © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin · Steel Construction 12 (2019), No. 2 69

Journal

Steel Construction: Design and ResearchWiley

Published: May 1, 2019

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