Experimental investigations on the load-bearing capacity of tunnel segments – Evaluation of the resource efficiency of large-scale test specimens
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Bibliographic Details
| Author(s): |
Marion Decker
(Institute of Structural Engineering, TU Wien, Vienna, Austria)
Clemens Proksch-Weilguni (Institute of Structural Engineering, TU Wien, Vienna, Austria) Johann Kollegger (Institute of Structural Engineering, TU Wien, Vienna, Austria) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Beyond Structural Engineering in a Changing World, San José, Cost Rica, 25-27 Seotember 2024 | ||||
| Published in: | IABSE Congress San José 2024 | ||||
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| Page(s): | 167-173 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/sanjose.2024.0167 | ||||
| Abstract: |
Considering the current state of climate change and the finite supply of energy and resources, it is crucial to optimize newly erected structures in order to increase the construction industry's resource efficiency. Segmental tunnel linings present a significant opportunity for this kind of initiative as the optimization of one segment affects many identical ones. Therefore, an experimental campaign on large-scale specimens was conducted to investigate the enhancement of the load transfer zone between tunnel segments. In this paper, the performance of three test specimens is analyzed regarding the resource efficiency, whereby these are conventionally reinforced tunnel segments, segments with butt-jointed reinforcement bars and steel-fibers, respectively. The work follows on from earlier studies on cylindrical specimens, where the ultimate load was linked to the global warming potential (GWP). The results show that the resource efficiency of the specimen with butt-jointed bars outperforms the other types. |
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| Keywords: |
global warming potential (GWP) tunnel segments different reinforcement layouts
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