The Effect of Different Earthquake Parameters on the Dynamic Behavior of the Wharf

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Abdollahzadeh Ataollah; Hadiani Navid; Eghbali Amirhossein; Haghbin Maryam

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Journal Paper

Paper Information

Journal: Modares Civil Engineering journal Year:2023 | Volume:23 | Issue:3 Page(s): 139-153

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Information Journal Paper

Title

The Effect of Different Earthquake Parameters on the Dynamic Behavior of the Wharf

Author(s)

Abdollahzadeh Ataollah | Hadiani Navid | Eghbali Amirhossein | Haghbin Maryam | Issue Writer Certificate

Keywords

wharf

liquifaction

Dynamic analysis

Finite difference method

Abstract

wharf is an engineering structure which is constructed generally for loading or unloading of goods. The structure may be constructed on the weak layers like gravel and sand with respect to the bank conditions. In case of incorrect design of this type of structure and its failure, the wharf activities may be stopped for a long time due to damage to adjacent facilities. For this reason, investigating the behavior of coastal structures against failure factors such as earthquake and the liquefaction due to it, is of great importance. Analysis of wharf performance against liquefaction is done generally using the numerical methods. In this article using the Flac2D software which has the capability of nonlinear analysis of effective stress and generation of excess pore water pressure in the soil continuum, the liquefaction phenomenon in the soil surrounding the wharf is simulated using the behavioral model Finn. In continuation, the impact of different earthquake parameters on the wharf behavior is investigated. Finally, the results of the excess pore water pressure, horizontal displacement, soil settlement and bending moment of piles are presented. Then, the correlation between these parameters and different earthquake parameters is investigated. As the earthquake intensity criteria have great importance in terms of statistical assessment of seismic demand of various types of structures, therefore, in this study in order to investigate the quality of earthquake intensity criteria, the determining indices such as being optimal and applicable, efficiency index, sufficiency with respect to the earthquake magnitude and distance to the center of earthquake propagation are investigated. The results show that compatibility between the earthquake parameters and soil settlement is generally better with respect to other parameters. Keywords: wharf, liquefaction, Dynamic analysis, Finite difference method.

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