Experimental measurements of flood-induced impact forces on exposed elements

被引:3
|
作者
Sturm, Michael [1 ]
Gems, Bernhard [1 ]
Keller, Florian [2 ]
Mazzorana, Bruno [3 ,4 ,5 ]
Fuchs, Sven [6 ]
Papathoma-Koehle, Maria [6 ]
Aufleger, Markus [1 ]
机构
[1] Univ Innsbruck, Unit Hydraul Engn, A-6020 Innsbruck, Austria
[2] Ingenieurbur Thomas Haug, A-6600 Lechaschau, Austria
[3] Univ Austral Chile, Inst Earth Sci, Valdivia 5090000, Chile
[4] Millennium Nucleus CYCLO Seism Cycle Subduct Zone, Valdivia, Chile
[5] Univ Austral Chile, Res Ctr Assessment & Mitigat Nat & Anthropogen Ri, Valdivia 5090000, Chile
[6] Univ Nat Resources & Life Sci, Inst Mt Risk Engn, A-1180 Vienna, Austria
基金
奥地利科学基金会;
关键词
VULNERABILITY;
D O I
10.1051/e3sconf/20184005005
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
Torrential flood hazards are a major threat for inhabited alluvial fans. They have the potential to relocate large amounts of sediment from the upper catchments to settlement areas on the alluvial fans where typically distributary processes take place. The approaching water-sediment-mixture impacting on building walls are part of a set of damage-generating mechanisms and may cause severe damages to buildings and infrastructure. It is difficult to predict the magnitude and temporal forces on buildings due to the complex flow patterns and sediment deposition processes around obstacles on the floodplain. Our work focuses on experimental measurements of impact forces of flood events on buildings at a 1:30 scale model. It covers the alluvial fan of the Schnannerbach torrent (Austria) with a set of building structures which are equipped with force measurement devices. The measured impact forces are correlated to the approaching flow heights. Influencing factors on the impacts forces such as surrounding buildings on the floodplain and the presence of openings in the building envelope are also analysed. The influence of different hydraulic flow patterns on the impact forces and regression analyses for an estimation of impact forces are presented.
引用
收藏
页数:8
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