Flexible Rockfall Barriers Subjected to Extreme Loads

Flexible rockfall barriers are proven protection systems to mitigate the hazard of rocks falling on people and infrastructure. To assure that such systems are able to dynamically stop falling rocks in reality, several guidelines with full-scale tests were introduced worldwide. These guidelines consi...

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Veröffentlicht in:Structural engineering international : journal of the International Association for Bridge and Structural Engineering (IABSE) Jg. 19; H. 3; S. 327 - 332
Hauptverfasser: Volkwein, Axel, Roth, Andrea, Gerber, Werner, Vogel, Aron
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Zürich Taylor & Francis 01.08.2009
IABSE
Schlagworte:
Applied sciences
Buildings. Public works
Computation methods. Tables. Charts
Exact sciences and technology
extreme loads
full-scale tests
high-speed rockfall
numerical modelling
Road operations (signalization, lighting, safety and accessories, snow clearance, acoustical panel, etc.)
rockfall barriers
Structural analysis. Stresses
Transportation infrastructure
tree fall
Switzerland
Europe
full-scale tests
Barrier
Rockfalls
Full scale mockup test
Modeling
Case study
numerical modelling
tree fall
Flexible structure
Extreme value
rockfall barriers
High speed
Tree
Numerical simulation
Fall
extreme loads
Loading test(mechanics)
Protection
high-speed rockfall
ISSN:1016-8664, 1683-0350
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:Flexible rockfall barriers are proven protection systems to mitigate the hazard of rocks falling on people and infrastructure. To assure that such systems are able to dynamically stop falling rocks in reality, several guidelines with full-scale tests were introduced worldwide. These guidelines consider very standardized and repeatable load cases but cannot take possible extreme loads into account. Two examples of extreme loads were investigated, high-speed rockfalls where the impact velocity is well above 25 m/s as described in the testing guidelines, and a tree trunk strike with the same weight as a falling rock but with a much smaller impact area. Finally, an overview of the performance of flexible barrier subject to dynamic area loads, such as debris flow, shallow landslides or snow avalanches is given.
Bibliographie:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1016-8664
1683-0350
DOI:10.2749/101686609788957900