An investigation about effects of fluid-structure-soil interaction on response modification coefficient of elevated concrete tanks

M. Hashemi, K. Bargi
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引用次数: 0

Abstract

AbstractThis paper aims to observe effects of fluid-structure-soil interactions on the response modification coefficient of elevated concrete tanks with frame and shaft supporting systems. Because of weaknesses and failures of elevated tanks that have been reported in recent earthquakes and importance of optimum and resistant design and also better seismic performance of these structures, it is essential to investigate on the response modification coefficient of elevated concrete tanks. In this paper, the response modification coefficient has been evaluated by using the numerical modeling. The method of research is a case study. The models have been subjected to an ensemble of important earthquake ground motions. The effects of soilstructure interactions and fluid-structure interactions on seismic behavior of the elevated concrete tanks have been modeled by the equivalent springs and Housner’s method, respectively. Dynamic response of the elevated tanks has been considered by using the nonlinear time hist...
流固土相互作用对高架混凝土储罐响应修正系数的影响研究
摘要本文旨在观察流固土相互作用对具有框架和竖井支撑体系的高架混凝土储罐响应修正系数的影响。鉴于近年来高架混凝土储罐在地震中出现的诸多缺陷和失效,以及优化设计和提高结构抗震性能的重要性,研究高架混凝土储罐的响应修正系数是十分必要的。本文采用数值模拟的方法对响应修正系数进行了计算。研究的方法是个案研究。这些模型经受了一系列重要地震地面运动的影响。采用等效弹簧法和Housner法分别模拟了土-结构相互作用和流-结构相互作用对高架混凝土储罐抗震性能的影响。采用非线性时程分析方法研究了高架储罐的动力响应。
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