Derivation of New Equations for Estimation of Earthquake Induced Peak Ground Acceleration and Velocity

مهندسی عمران فردوسی

Article 6, Volume 31, Issue 4 - Serial Number 24, November 2018, Pages 97-112   

Document Type: پژوهشی

DOI: 10.22067/civil.v32i1.62529

Authors

Ali Derakhshani^{* 1}; Ali Saberi²

¹Shahed University

²Islamic Azad University Central Tehran Branch

Abstract

In this study, a new method called M5, was employed to derive ground-motion prediction equations (GMPEs). Peak ground acceleration (PGA) and peak ground velocity (PGV) was formulated by seismic parameters including earthquake magnitude, earthquake source to site distance, average shear-wave velocity and faulting mechanisms with The Pacific Earthquake Engineering Research Center (PEER) database. For verification, the proposed model was compared with three well-known models by Correlation Coefficient, Root Mean Square Error and Mean Absolute Error. A sensitivity analysis and a parametric analysis was carried out to determine the contributions of the parameters affecting model and sensitivity of the models to the variations of the influencing parameters. The equations are remarkably simple and can reliably be used for pre-design purposes.

Keywords

Strong ground motion parameters; Prediction equations; M5 model tree; Earthquake risk assessment

Supplementary Files

6-drakhshani.pdf

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