Affiliation:
1. Austrian Institute of Technology, Vienna, Austria
Abstract
<p>The construction industry must cut its carbon footprint significantly and therefore needs to widen its performance indicators like safety, reliability, availability, and economy by environmental aspects. There are numerous challenges to an objective comparison of bridge design alternatives based on environmental considerations. In addition to the considerable uncertainties in the Global Warming Potential of construction materials the question of setting adequate boundaries for the environmental assessment must be addressed. The aim of the present case study of a typical overpass above a motorway is to illustrate the importance of the interaction between the structural design choices, such as the placement of an intermediate support, and their consequences for traffic. An objective environmental evaluation of bridge design choices must consider both aspects. The importance of such a broadened approach shall be highlighted in the present study.</p>
Publisher
International Association for Bridge and Structural Engineering (IABSE)
Reference16 articles.
1. Sobek W. non nobis – über das Bauen in der Zukunft Band 1: Ausgehen muss man von dem, was ist. Altenburg: DZA Druckerei; 2022.
2. EN 15804:2012. Sustainability of construction works - Environmental product declarations - Core rules for the product category of construction products. Brussels: CEN; 2012.
3. How to deal with uncertainties in the assessment of the global warming potential of bridges;Vazul Boros;ce/papers
4. Using CO2 emission quantities in bridge lifecycle analysis;Y. Itoh;Engineering Structures
5. Life cycle assessment as a decision support tool for bridge procurement: environmental impact comparison among five bridge designs