Sensitivity of engineering demand parameters as a function of structural typology and assessment method

Stocchi, Alessandro; Richard, Benjamin

doi:10.1016/j.nucengdes.2019.01.006

Cited by 8 publications

(5 citation statements)

References 36 publications

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“…loss of the capacity of a structural member) resulting from complex nonlinear deformation or energy dissipation, to a unique point in the monotonic skeleton curve. The most used indicators compute the ductility (Krawinkler et al, 2003;Farrow and Kurama, 2003), eigen-frequency drop-off (Stocchi and Richard, 2019) or plastic energy (Ke et al, 2017). For the sake of brevity, in this case the structural response is evaluated by quantifying a inelastic seismic demand index, namely the plastic energy dissipation (W P ).…”

Section: Damage Index and Structural Mechanical Behaviormentioning

confidence: 99%

Integrated Assessment of Basin Effects on Seismic Damage: A Coupled 3D SEM-FEM Approach with Domain Reduction Method

Soto,

Lopez-Caballero

2024

Preprint

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Sedimentary materials enclosed in basins modify the ground motion by energy trapping, resonance and surface wave generation at the basin edge. In general, the effects of basin presence are approximated by amplification factors (AF), focusing directly on the horizontal components of ground motion. The current study presents a coupled framework to assess the impact of basin effects on the seismic damage of a nonlinear structure. Using the Domain Reduction Method (DRM), a complete time-analysis from the earthquake source, at a regional scale, to an infrastructure, at a local scale is performed. The numerical wave propagation simulation uses a coupled 3D SEM-FEM approach including non-linearities and soil-structure interaction. With the results is possible to correlate the amplification factors obtained from ground motions and the associated damage of the structure. The findings indicate that basins' effect on structural damage may be estimated in a simplified form using a combination of a structural behavior predictor and AFs derived from the free-field ground motions. However, these factors should be correctly predicted, including both basin and source variability.

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Section: Damage Index and Structural Mechanical Behaviormentioning

confidence: 99%

Integrated Assessment of Basin Effects on Seismic Damage: A Coupled 3D SEM-FEM Approach with Domain Reduction Method

Soto,

Lopez-Caballero

2024

Preprint

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“…To combine the ground motion records from Cloud analysis with model uncertainty, they used the simplified method with a random combination. 2019) [4] investigated the sensitivity of EDP with respect to structural modeling and its typology. Two benchmark models were used: BANDIT (different frames modeling) and SMART2013 (different wall modeling).…”

Section: Sensitivity To Materials and Modeling Variabilitymentioning

confidence: 99%

Sensitivity analysis of reinforced concrete structures :

Sattar¹

2023

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Sensitivity analysis is a crucial step in computational mechanics and earthquake engineering. Sensitivity analysis of a model (either numerical or physical) aims at quantifying the relative importance of each input parameter, their potential interaction, and their effects on the model response. Sensitivity analysis has a long-term application in structural engineering more specifically on reinforced concrete RC structures. Many researchers benefited from the results of sensitivity analysis to reduce the uncertainty domain to those variables which are very important. This further helps in uncertainty quantification by accelerating the entire process. This state-of-the-art technical report provides a comprehensive review of classical sensitivity analysis techniques, followed by an in-depth review of all the related documents that implemented a full sensitivity analysis or partially adopted it for uncertainty quantification-related discussions. This review report on sensitivity analysis of reinforced concrete structures is a valuable contribution to the field of computational mechanics and earthquake engineering. This review highlights the importance of selecting an appropriate sensitivity analysis technique to achieve reliable results in structural analysis and design. By providing insights into the advantages and limitations of various sensitivity analysis techniques, this report can guide researchers, practitioners, and decision-makers in selecting the most appropriate technique for their specific applications. It is observed that the outcome of a sensitivity analysis depends heavily on the applied technique to perform the sensitivity assessment which eventually may cause a significant bias during the decision making. This report paves the road for better selection of a sensitivity analysis technique in problems related to structural and earthquake engineering. The findings of this review have significant implications for improving the accuracy and reliability of structural analysis, ultimately leading to safer and more resilient structures.

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“…Such an approach is included within the traditional framework of the performancebased earthquake and structural engineering [35,36]. EDPs are usually defined by guidelines [43] and past research studies [44,45]. For instance, structural elements such as reinforced concrete columns are sensitive to both element chord rotation and inter-storey drift ratio (relative displacement between the stories normalised over the storey height), and such parameters are typically used as EDPs for seismic assessment.…”

Section: Performance-based Assessmentmentioning

confidence: 99%

Failure criteria for real-time assessment of ductile cast irons subjected to various loading conditions

D’Angela¹,

Ercolino²,

Bellini³

et al. 2020

Smart Mater. Struct.

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The paper presents an innovative approach for the damage assessment of ductile cast irons by using a probabilistic-based methodology. The study is based on the experimental results of acoustic emissions tests performed on pearlitic ductile cast irons subjected to both monotonic and fatigue tensile loading. The information entropy of the acoustic emissions data is confirmed to be well correlated to both the damage progress and the occurrence of the incipient failure. Robust failure criteria are finally provided for real-time assessment in structural health monitoring applications.

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Sensitivity of engineering demand parameters as a function of structural typology and assessment method

Cited by 8 publications

References 36 publications

Integrated Assessment of Basin Effects on Seismic Damage: A Coupled 3D SEM-FEM Approach with Domain Reduction Method

Integrated Assessment of Basin Effects on Seismic Damage: A Coupled 3D SEM-FEM Approach with Domain Reduction Method

Sensitivity analysis of reinforced concrete structures :

Failure criteria for real-time assessment of ductile cast irons subjected to various loading conditions

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