Study on the Influence of Earthquake Duration on the Dynamic Response of Pile-supported Wharf in Deep Water Area

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Song, B.^1,3 ; Xie, M.L.^1,3 ; Wang, R.^2,3

University of Science and Technology Beijing, Beijing

100083, China^1

China Harbour Engineering Company Limited, Beijing

100027, China^2

Beijing Intl. Coop. Base for Sci. and Technol.- Aseismic Res. of the Rail Transit Eng. in the Strong Motion Area, Beijing

100083, China^3

关键词: Displacement response;    Dynamic response of piles;    Earthquake wave;    Energy dissipation ratios;    Moment-curvature relation;    Pile-supported wharf;    Research object;    Steel pipe pile;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062013/pdf
DOI  :  10.1088/1757-899X/392/6/062013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to study the influence of earthquake duration on the dynamic response of pile-supported wharf in deep water area, this paper takes a typical steel pipe pile-supported wharf as the research object. This paper establishes the finite element model of pile-supported wharf. And by applying earthquake waves with different duration to the structure, the displacement response of the piled wharf, the energy dissipation ratio of plastic hinge, and the destruction process were analyzed. The study results show that the influence of earthquake duration on the displacement response of the structure is less but the influence on the parameters which are characterizing the earthquake energy dissipated by structure is significant, and the larger the amplitude of the earthquake waves is, the more significant the influence is. The parameters that characterize the earthquake energy dissipated by structure can provide a good indication of the damage level of the pile-supported wharf under earthquake with different durations. As a simple method, it can be preliminarily judged by the moment-curvature relation curve; when studying the influence of earthquake's duration on the structure, an appropriate duration threshold should be chosen based on the type of structure.