Dynamic Magnification Factor of Pile-Supported Wharf under Horizontally Bi-Directional Ground Motion

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Dynamic Magnification Factor of Pile-Supported Wharf under Horizontally Bi-Directional Ground Motion

Gao, Shufei; Gong, Jinxin; Feng, Yunfen

Journal of earthquake engineering : JEE, 01/2021, Volume: 25, Issue: 1

Journal Article

This study proposes a generally applicable equation for dynamic magnification factor (DMF) based on the conditions for static equilibrium of an equivalent mechanical model for actual wharf under horizontally bi-directional ground motion. The new equation can be expressed as a function of eccentricity ratio and aspect ratio for wharf segment. The applicability and accuracy of proposed equation are validated by conducting two case studies that compare DMF determined by equation with that determined by nonlinear time history analyses using bi-directional earthquake ground motion records. The validation shows that the new DMF equation has favorable applicability and accuracy.

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Gao, Shufei | Gong, Jinxin | Feng, Yunfen

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