Progressive failure of buildings under landslide impact

Luo, Hongyu; Zhang, lulu; Zhang, Li Min

doi:10.1007/s10346-019-01164-0

Cited by 40 publications

(14 citation statements)

References 27 publications

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“…A concrete element was allowed to erode when it reached a principal tensile fracture strain of 0.001 [26,37]. An effective plastic failure strain of 0.1 was adopted for the rebar [30].…”

Section: Masonry Structure Fe Modelmentioning

confidence: 99%

“…Hourglass control was used with viscous form. Although the adopted method did not capture all the features of natural flow materials, the method has been proved to be feasible to reflect the fundamental physical nature well [12,30].…”

Section: 2mentioning

confidence: 99%

“…Luo et al [12] indicated that the friction coefficient was insensitive to the flood and impact processes. A typical value of 0.1, which was widely used in viscous flow modelling [29,30], was adopted.…”

Section: Coupling Interfaces and Boundary Conditionsmentioning

confidence: 99%

“…Feng et al [29] established a flow-structure coupled numerical model by Smoothed Particle Hydrodynamics to predict the propagation of flow slides and the destruction process of buildings. Luo et al [12,30] simulated the interaction between buildings and five mass flows to analyze structural responses and failure patterns of reinforced concrete-framed buildings. However, insufficient attention has been paid to the interaction between flash floods and buildings so far.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear Simulation and Vulnerability Analysis of Masonry Structures Impacted by Flash Floods

Fang

Zhong

Zhang

et al. 2021

Shock and Vibration

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The vulnerability of buildings impacted by flash floods is often assessed by empirical approaches. However, the damage-developing mechanisms of buildings remain unclear. This study presented a nonlinear numerical analysis for the interaction between flash floods and masonry structures. A new Structured ALE (S-ALE) solver in an explicit finite element platform LS-DYNA was applied. Thirty different scenarios, including two different FE models, three different water depths, and five different flow velocities, were studied. Nonlinear structural responses and failure mechanisms of masonry structures were analyzed and compared. Results showed that due to the consideration of wall damage, the time evolution of the impact force on the entire building was distributed in a multipeak pattern. Under the impact of flash floods, the building was in a complex bending-shear state, and the overturning moment was the principal reason for the building damage. The critical role played by the structural measure was reaffirmed. Moreover, the physical vulnerability was quantified through a macroscopic damage index, the lateral drift ratio of the ground floor. It can be concluded that the physical vulnerability depends on both the local structural strength (local view) and the structural resistance hierarchies (global view).

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“…A concrete element was allowed to erode when it reached a principal tensile fracture strain of 0.001 [26,37]. An effective plastic failure strain of 0.1 was adopted for the rebar [30].…”

Section: Masonry Structure Fe Modelmentioning

confidence: 99%

Section: 2mentioning

confidence: 99%

Section: Coupling Interfaces and Boundary Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nonlinear Simulation and Vulnerability Analysis of Masonry Structures Impacted by Flash Floods

Fang

Zhong

Zhang

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

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“…In general, methods to investigate the travel distance of a landslide can be divided into two categories (Hungr et al, 2005), i.e., 1analytical or numerical methods based on the physical laws of solid and fluid dynamics (Scheidegger, 1973), which are often solved numerically (e.g. Hungr and McDougall, 2009;Luo et al, 2019) and…”

Section: P F P F Sr P Sr P F Mr P Mr P F Lr P Lrmentioning

confidence: 99%

Quantitative Risk Assessment of Vehicles Hit by Landslides: A Case Study

Zhang

et al. 2020

Preprint

Self Cite

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Abstract. Landslides threaten the safety of vehicles on highways. Nevertheless, a rigorous quantitative highway landslide risk assessment seems difficult. Using a case study in Hong Kong, this paper presents a method for quantitative risk assessment for highway landslides. The suggested method consists of three parts, i.e., analysis of annual failure probability of the slope, the spatial impact analysis and the consequence analysis. In the case study, the annual failure probability of the slope is analyzed based on historical failure data in Hong Kong. The spatial impact of the landslides is estimated based on empirical correlations with the geometry of the slope. The consequence is assessed based on probabilistic modeling of the traffic on the highway. Based on the suggested method, the annual failure probability of the slope, the distance from the slope and the road and the density of vehicles on the road can significantly affect the landslide risk and the suggested method can be used to quantify the effects of these factors. The suggested method can be also potentially used to analyze the highway landslide risk in other regions.

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