Innovative Lightweight Footbridges in Comprehensive Material and Dynamic Analysis
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Détails bibliographiques
| Auteur(s): |
B. Stankiewicz
W. Średniawa |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Synergy of Culture and Civil Engineering – History and Challenges, Wrocław, Poland, 7-9 October 2020 | ||||
| Publié dans: | IABSE Symposium Wroclaw 2020 | ||||
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| Page(s): | 479-486 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| Année: | 2020 | ||||
| DOI: | 10.2749/wroclaw.2020.0479 | ||||
| Abstrait: |
The paper concerns the study on a change in modal parameters and structural stiffness of cable-stayed footbridge made entirely of GFRP composite used for 20 years in the fjord area. Due to this specific location the bridge structure was subjected to natural aging in harsh environmental conditions. The flexural properties of the pultruded GFRP profiles acquired from the analyzed footbridge were determined through three-point bending tests. Full scale experimental investigations of the free-decay response under human jumping for the experimental state were carried out applying accelerometers. Seven natural frequencies, corresponding mode shapes and damping ratios were identified. The paper presents also different, second concept of lightweight footbridge used unorthodox composite material created with Reactive Powders Concrete. |
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