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Showing 1 to 9 of 9 for “"Peak ground acceleration (PGA)"”.
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Numerical Analysis on Seismic Response of Cantilever Retaining Wall Systems and Fragility Analysis on Motion Response
… The effects of cohesion and free-field peak ground acceleration (PGA) on seismic earth thrust, the point of action of earth thrust, and maximum wall moment during the earthquake were compared with analytical and experimental solutions. The numerical results were compared with various …
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Seismic Slope Stability: A Comparison Study of Empirical Predictive Methods with the Finite Element Method
… incorporates a yield coefficient and the actual acceleration time history to estimate permanent displacements. Numerical methods incorporate advanced constitutive models to simulate the coupled stress-strain soil behavior, making the process computationally more costly. In this study, a model …
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The significance of seismic hazard on structural design in Zambia
… hazard analysis predicted significant values of peak ground acceleration (PGA) of up to 0.5 g and 0.7 g for return periods of 475 years and 950 years, respectively. The highest values of PGA were observed in Zone 5 of the study which is around Lake Tanganyika in the northern region of Zambia …
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Seismic Hazard Assessment for Mainland China Based on Spatially Smoothed Seismicity and Projected Sets of Ground Motion Models
… results of the CSHM were presented in terms of peak ground acceleration (PGA) and peak ground velocity. No maps for spectral acceleration (SA) are given. This is partly due to the ground motion models (GMMs) to predict SA for mainland China are unavailable. The unavailability of the GMMs for SA …
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Application of Wavelet Transform to Endurance Time Analysis Method for Performance-based Seismic Design
… the world, but the number of reliable recorded ground motion data for a given site is often limited. In addition, the use of present methodologies to modify existing earthquake records to match site conditions could change the relationship between the recorded earthquake characteristics and …
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Regionally adaptable ground-motion Prediction Equations (GMPEs) for seismic hazard analysis
Adjustment of empirically derived ground motion prediction equations (GMPEs), from a data- rich region/site where they have been derived to a data-poor region/site, is one of the major challenges associated with the current practice of seismic hazard analysis. Due to the fre- quent use in …
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Improved ground motion intensity measures for reliability-based demand analysis of structures
… an average of a certain number of spectral acceleration ordinates in a certain interval of periods, Sa,avg (T1,…,Tn), as scalar ground motion Intensity Measure (IM) when assessing the seismic performance of inelastic structures. Since the interval of periods where computing Sa,avg is related …
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Seismic hazard assessment in Central Asia
… Usually seismic hazard is estimated considering ground motion at rock site, but since the ground motion could vary significantly over short distances due to local surficial geology, it is important to consider locally estimated site effects in seismic hazard assessment. Under the GSHAP project …
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Nonlinear site amplification functions for Central and Eastern North America
Site amplification functions are used to modify ground motions from a reference bedrock condition to a surface condition based on the geologic features of the site of interest. Site amplification has been extensively studied and evaluated empirically for seismic regions such as the Western United …