Proposal to compute hydrodynamic pressures and sloshing heights in ground-supported rectangular tanks subjected to earthquakes

IF 0.3 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria Pub Date : 2022-01-01 DOI:10.23967/j.rimni.2022.07.001

J. De‐la‐Colina, C. Gonzalez-Perez

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引用次数: 0

Abstract

A proposal to estimate both the hydrodynamic pressures and the maximum wave height of liquids contained in rectangular tanks subjected to earthquake ground motions is presented. The computation procedure, based on the Rayleigh-Ritz method, assumes the fluid as a continuum and it does not use concentrated masses or springs. The solution is achieved by equating the seismic input energy of the system with the total kinetic energy of the fluid assuming liquid velocity fields. The resulting design formulas are simple and they are intended to simplify the seismic design of tanks. Numerical results lead to both the liquid maximum sloshing height and hydrodynamic pressure distributions that are similar to those obtained with other simplified methods and those estimated with the finite element method. Preliminary estimations of shear forces and bending moments for a numerical example resulted 13% and 6% larger (respectively) than the corresponding values obtained with the finite element method.

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计算地震作用下地面支承矩形储罐的动水压力和晃动高度的建议

本文提出了一种估算地震地震动作用下矩形储罐内液体的动水压力和最大波高的方法。基于瑞利-里兹方法的计算过程假定流体为连续体，不使用集中质量或弹簧。通过假定流体速度场，将系统的地震输入能量与流体的总动能相等来求解。所得设计公式简单，旨在简化储罐的抗震设计。数值计算结果表明，液体最大晃动高度和动水压力分布与其他简化方法得到的结果和有限元方法估计的结果相似。数值算例的剪力和弯矩的初步估计结果(分别)比有限元法得到的相应值大13%和6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria 工程技术-工程：综合

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： International Journal of Numerical Methods for Calculation and Design in Engineering (RIMNI) contributes to the spread of theoretical advances and practical applications of numerical methods in engineering and other applied sciences. RIMNI publishes articles written in Spanish, Portuguese and English. The scope of the journal includes mathematical and numerical models of engineering problems, development and application of numerical methods, advances in software, computer design innovations, educational aspects of numerical methods, etc. RIMNI is an essential source of information for scientifics and engineers in numerical methods theory and applications. RIMNI contributes to the interdisciplinar exchange and thus shortens the distance between theoretical developments and practical applications.