Author(s): Denis Istrati; Anis Hasanpour
Linked Author(s):
Keywords: No Keywords
Abstract: Given the exposure of riverine bridges to more intense and frequent flooding events and the observed large floating debris (e. g. vehicles) in recent floods, this study presents a numerical investigation of the debris-flowstructure interaction and associated loads. A multi-physics sophisticated modeling approach is used, in which a dam break-induced flow is simulated via particles, the debris and bridge via continuum elements, and the interaction of the different domains via penalty-based contacts. The preliminary results reveal that the large debris exerts on piers impulsive loads that are 6 to 10 times larger than the fluid forces, which highlights the need to (i) consider such scenarios in the design and risk assessment of riverine bridges, and (ii) develop appropriate mitigation strategies in order to improve the resilience of transportation networks.
Year: 2022