Enhancing stress measurements accuracy control in the construction of long-span bridges

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URI: https://hdl.handle.net/11556/4809
ISSN: 2045-2322
DOI: 10.1038/s41598-024-61873-y
Publication date
2024-12
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Abstract
This paper introduces new contributions for construction procedures designed to enhance the robustness and precision of stress control in active anchorage and short presetressing units for long-span bridges, particularly addressing potential technical risks. The primary focus is on optimizing stress management for bridge stays, suspension cables, and short prestressing units by emphasizing a unified parameter: stress. The contributions of this research encompass (1) the introduction of advanced load cells for stress control in active anchorages and (2) the implementation of a novel synchronized multi-strain gage load cell network for short prestressing units, crucial in situations where prestressing losses can attain significant magnitudes. To validate these advancements, the authors present (3) a practical experience and results obtained from applying these methodologies in monitoring the structural response during the construction of the Tajo Bridge using the cable-stayed cantilever technique.
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Publisher Copyright: © The Author(s) 2024.
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Arch bridges , Cable-stayed cantilever technique , Evaluation of pre-stressing losses , Load cells , Structural health monitoring systems , Multidisciplinary
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journal article
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Gaute-Alonso , A , Garcia-Sanchez , D , Ramos-Gutierrez , Ó R & Ntertimanis , V 2024 , ' Enhancing stress measurements accuracy control in the construction of long-span bridges ' , Scientific Reports , vol. 14 , no. 1 , 10961 . https://doi.org/10.1038/s41598-024-61873-y