Simplified probabilistic evaluation of the variability of soil-structure interaction parameters on the elastic transmission of ground movements

Kahi, Elio El; Deck, Olivier; Khouri, Michel; Mehdizadeh, Rasool; Rahmé, Pierre

doi:10.1016/j.engstruct.2020.110554

Cited by 6 publications

(5 citation statements)

References 32 publications

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“…where the second term in the numerator contains the conditional contrast evaluated for input random variable X i and fixed variables ( 21is analogous to Equation (15), but for the quantile.…”

Section: Global Rosamentioning

confidence: 99%

“…In civil engineering, classical Sobol SA (SSA) [6,7] is applied in the research of structural responses [8][9][10][11][12][13][14][15][16] or responses in geotechnical applications [17,18]. SSA is attractive for a number of reasons, e.g., it measures sensitivity across the whole input space (i.e., it is a global method), and it is capable of dealing with non-linear responses, as well as measuring the effect of interactions in non-additive models.…”

Section: Introductionmentioning

confidence: 99%

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From Probabilistic to Quantile-Oriented Sensitivity Analysis: New Indices of Design Quantiles

Kala

2020

Symmetry

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In structural reliability analysis, sensitivity analysis (SA) can be used to measure how an input variable influences the failure probability Pf of a structure. Although the reliability is usually expressed via Pf, Eurocode building design standards assess the reliability using design quantiles of resistance and load. The presented case study showed that quantile-oriented SA can provide the same sensitivity ranking as Pf-oriented SA or local SA based on Pf derivatives. The first two SAs are global, so the input variables are ranked based on total sensitivity indices subordinated to contrasts. The presented studies were performed for Pf ranging from 9.35 × 10−8 to 1–1.51 × 10−8. The use of quantile-oriented global SA can be significant in engineering tasks, especially for very small Pf. The proposed concept provided an opportunity to go much further. Left-right symmetry of contrast functions and sensitivity indices were observed. The article presents a new view of contrasts associated with quantiles as the distance between the average value of the population before and after the quantile. This distance has symmetric hyperbola asymptotes for small and large quantiles of any probability distribution. Following this idea, new quantile-oriented sensitivity indices based on measuring the distance between a quantile and the average value of the model output are formulated in this article.

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Section: Global Rosamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

From Probabilistic to Quantile-Oriented Sensitivity Analysis: New Indices of Design Quantiles

Kala

2020

Symmetry

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“…Only a few scholars have simplified surface buildings into strip structures to discuss soil-structure interaction under surface deformation. El Kahi et al [22] regarded a building as a strip, discussed the uncertainty when ground movement propagates to the structure, and identified the parameters of structural safety for evaluating building damage caused by ground movement. Son and Cording [23] considered a building a simple rectangle and proposed an assessment method for building damage based on 3D distorted structural units from the 2D strain state of a building caused by surface subsidence.…”

Section: Discussionmentioning

confidence: 99%

Soil‐Building Interaction under Surface Horizontal Strain Induced by Underground Mining

Liu

2022

Advances in Civil Engineering

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Underground mining causes the ground to deform, leading to the destruction of buildings. Horizontal strain is one of the most important causes of damage to strip foundation buildings. However, related research is insufficient and the mechanism behind building damage caused by horizontal strain remains unclear, resulting in several difficulties in performing coal mining under villages. In this study, interface slip and soil pressure caused by the horizontal strain of ground transfer between soil and buildings are investigated, and stress concentration in buildings driven by soil movement is considered the primary cause of building damage. The influences of the mechanical parameters of soil and the geometric parameters of a building on stress distribution inside a building are analyzed by establishing a stress distribution model of a building under different ground horizontal strains. Softening the foundation or designing deformation joints inside a building can reduce the influence of horizontal strain on a building. This research can provide an important reference for performing coal mining safely under villages and designing building protection against ground horizontal strain.

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“…Only a few scholars have simplified surface buildings into strip structures to discuss soil-structure interaction under surface deformation. Kahi regarded a building as a strip, discussed the uncertainty when ground movement propagates to the structure, and identified the parameters of structural safety for evaluating building damage caused by ground movement [19]. Son considered a building a simple rectangle and proposed an assessment method for building damage based on 3D distorted structural units from the 2D strain state of a building caused by surface subsidence [20].…”

Section: Discussionmentioning

confidence: 99%

Soil–building Interaction under Surface Horizontal Strain Induced by Underground Mining

Liu

2021

Preprint

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Underground mining will cause the ground to deform, leading to the destruction of buildings. Horizontal strain is one of the most important causes of damage to strip foundation buildings. However, related research is insufficient, making the mechanism of building damage caused by horizontal strain unclear and resulting in several difficulties in performing coal mining under villages. In this study, interface slip and soil pressure caused by the horizontal strain of ground transfer between soil and buildings are investigated, and stress concentration in buildings driven by soil movement is considered the primary cause of building damage. The influences of the mechanical parameters of the soil and the geometric parameters of building on stress distribution inside a building are analyzed by establishing a stress distribution model of a building under different ground horizontal strain. Softening the foundation or designing deformation joints inside a building can reduce the influence of horizontal strain on the building. This research can provide an important reference for performing coal mining safely under villages and designing building protection against ground horizontal strain.

show abstract

Simplified probabilistic evaluation of the variability of soil-structure interaction parameters on the elastic transmission of ground movements

Cited by 6 publications

References 32 publications

From Probabilistic to Quantile-Oriented Sensitivity Analysis: New Indices of Design Quantiles

From Probabilistic to Quantile-Oriented Sensitivity Analysis: New Indices of Design Quantiles

Soil‐Building Interaction under Surface Horizontal Strain Induced by Underground Mining

Soil–building Interaction under Surface Horizontal Strain Induced by Underground Mining

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