Simple procedure for dynamic analysis for 2D rectangular storage tanks using finite element method

Lyes Ramdani , Abdelkader Tahakourt , Nourredine Belhamdi

Abstract

This paper introduces a simplified model for the dynamic analysis of 2D rectangular storage tanks. The model employs an added mass method to eliminate the need for fluid domain modeling while accounting for liquid sloshing effects. Key parameters such as impulsive and convective vibration periods (sloshing) as well as seismic responses (displacements and base shear forces) are computed and validated against results from a fluid-structure interaction model based on the (U, P) formulation. The validation also considered mesh sensitivity, reservoir flexibility, and liquid compressibility. For three tank geometries with varying H/L ratios under different seismic loads, the proposed model produced highly satisfactory results, confirming its efficacy as a reliable computational tool for rectangular reservoir design.

Key Words

2D finite elements; fluid-structure interaction; free surface sloshing; rectangular tanks; simplified procedures

Address

Lyes Ramdani, Abdelkader Tahakourt — Laboratoire de Génie de la Construction et Architecture (LGCA), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria
Nourredine Belhamdi — Département d'Architecture, Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria

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