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Bridge hangers as cruciform sections – Advantages and behaviour under wind loading

 Bridge hangers as cruciform sections – Advantages and behaviour under wind loading
Autor(en): , ,
Beitrag für IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024, veröffentlicht in , S. 1358-1365
DOI: 10.2749/manchester.2024.1358
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Tied-arch bridges consist in aesthetic crafted structures with efficient design, providing opportunities for cost reduction and increased sustainability when compared to other bridge configurations...
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Bibliografische Angaben

Autor(en): (ArcelorMittal Global R&D, Esch-sur-Alzette, Luxembourg)
(ArcelorMittal Steligence Engineering, Esch-sur-Alzette, Luxembourg)
(CEREMA, Champs-sur-Marne, France)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024
Veröffentlicht in:
Seite(n): 1358-1365 Anzahl der Seiten (im PDF): 8
Seite(n): 1358-1365
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/manchester.2024.1358
Abstrakt:

Tied-arch bridges consist in aesthetic crafted structures with efficient design, providing opportunities for cost reduction and increased sustainability when compared to other bridge configurations. One particular hanger solution, designed by Jacques Berthellemy and implemented typically in radial tied-arch bridge configurations, involves a cruciform element with a variable cross-section along ist axis. In this paper the main advantages of using this type of hangers are presented and an assessment is shown regarding the response of this unique hanger under wind loading, an aspect that is not fully addressed within the scope of the simplified approach prescribed by the European standards. The outcome shows that the hanger geometry combines an optimised structural behaviour with an efficient performance, not susceptible to significant vibration risks arising from vortex shedding phenomena.

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