Site, local, and regional earthquake ground motion characterization and application

Hong, H.P.; Tj, Liu

doi:10.1177/1369433216646004

Cited by 2 publications

(1 citation statement)

References 49 publications

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“…Because it is developed based on a broad network of recording stations with the implicit ergodic assumption, the model may include potential bias for a particular site class or for a localized area. The potential existence of the bias was discussed in Sokolov et al 10 for the PGA of Taiwan records; there are efforts in removing the ergodic assumption by focusing on the ground motion variability at a single-station 31,32,33 but this is beyond the scope of this study. Therefore, the application of the model shown in equation (1) implicitly includes the potential bias that is similar to the one included in a ground motion prediction equation used for seismic hazard assessment and the development of the uniform hazard spectrum.…”

Section: Simulation Of Multiple-support Excitation For a Scenario Eventmentioning

confidence: 94%

Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event

Fan

et al. 2020

International Journal of Space Structures

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Structures with multiple supports can be sensitive to spatial coherence and spatial correlation. Since the historical recordings are insufficient for selecting records that match predefined inter-support distances of a structure, desired seismic magnitude (or intensity) and site to seismic source distance for structural analysis, such records need to be simulated. In this study, we use a procedure that is extended based on the stochastic point-source method to simulate records for scenario events. The application of the simulated records to a single-layer reticulated dome with multiple supports is presented. The application is aimed at investigating the differences between the responses subjected to spatially uniform excitation and to spatially correlated and coherent multiple-support excitation for a scenario seismic event, assessing the relative importance of the spatial coherence and spatial correlation on the responses, and evaluating the effect of the uncertainty in the spatially correlated and coherent records for a scenario event on the statistics of the seismic responses. The analysis results indicate that the spatial correlation of the Fourier amplitude spectrum has a predominant influence on the linear/nonlinear responses, and the consideration of spatially correlated and coherent excitation at multiple supports is very important. The consideration of uniform excitation severely underestimates the seismic load effects as compared to those obtained under spatially correlated and coherent multiple-support excitation.

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Section: Simulation Of Multiple-support Excitation For a Scenario Eventmentioning

confidence: 94%

Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event

Fan

et al. 2020

International Journal of Space Structures

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Fragility curves of a slender structure fitted with tuned mass dampers subjected to turbulent wind and seismic loading

Pozos Estrada,

Martín del Campo Preciado,

Pozos Estrada

2024

iit

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In the context of structural performance assessment, several studies have employed fragility curves and surfaces to evaluate the damage probability for predefined intensity levels of a single or multiple hazards. Further, some of these studies have considered the use of tuned mass dampers (TMDs) to reduce the response of structures under wind or seismic loading. In this work, fragility curves and surfaces of a slender structure fitted with TMDs subjected to turbulent wind and seismic loading alone and simultaneously are developed. For the numerical analyses, simulated records for wind and earthquake ground motion are considered. For the development of fragility curves and surfaces, three damage states that include local and global behavior of the structure are considered. The analysis results indicate that, for the structure considered, higher probability of damage is found from wind action than from earthquake, and that an important reliability enhancement is achieved with the use of TMDs.

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Site, local, and regional earthquake ground motion characterization and application

Cited by 2 publications

References 49 publications

Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event

Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event

Fragility curves of a slender structure fitted with tuned mass dampers subjected to turbulent wind and seismic loading

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