Journal
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
Volume 32, Issue -, Pages 127-131Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tust.2012.06.004
Keywords
Road tunnel; Lighting; Tension structures; Energy savings; Graphical design
Funding
- Spanish Ministry of Education and Science [BIA 2007-62595]
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The installation of semi-transparent tension structures in the entrance portal of road tunnels leads to significant energy savings. These savings can be maximized when the tensions structures are designed in such a way that their material and shape contribute to their optimal photometric and mechanical performance. In this research, a graphic design software in the field of light simulation has been used and combined with the ESTS equation, developed in a previous study, to simulate tension structures with three different shapes and three different materials. Nine possible combinations were thus tested. The results obtained show that this new method is a quick, inexpensive, and safe way to optimize the material and shape of the tension structure installed at the entrance portal of a road tunnel, regardless of its orientation and location. (C) 2012 Elsevier Ltd. All rights reserved.
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