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Indexed by:期刊论文

Date of Publication:2017-04-03

Journal:JOURNAL OF EARTHQUAKE ENGINEERING

Included Journals:SCIE、EI

Volume:21

Issue:3

Page Number:493-530

ISSN No.:1363-2469

Key Words:Pile-Supported Wharves; Displacement-Based Seismic Design; Displacement Demand; Equivalent Damping; Pivot Hysteresis Model; Soil-Pile Interaction

Abstract:This study primarily proposes new equivalent damping ratio equations based on Jacobsen's approach for displacement-based seismic design of pile-supported wharves to account for wharf configurations and soil-pile interaction. It is found that Pivot hysteresis model and Masing rule can accurately capture nonlinear behavior of concrete and steel wharves, respectively. To verify applicability of proposed equations, analyses were conducted to three typical wharves to make a comparison of maximum displacements obtained from nonlinear time-history analyses and substitute structure method with various damping equations. The verification reveals proposed equations are better than those in practice for their higher precision in determining displacements.