Seismic assessment of unanchored steel storage tanks by endurance time method

作     者：M. Alembagheri H.E. Estekanchi 

作者机构：Department of Civil EngineeringSharif University of Technology (SUT) 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2011年第10卷第4期

页      面：591-603页

核心收录：

学科分类：081405[工学-防灾减灾工程及防护工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Iranian Oil Building and Engineering Sharif University of Technology Research Council 

主　　题：steel liquid storage tanks endurance time method seismic assessment intensifying dynamic excitation tank base uplifting 

摘      要：Liquid storage tanks are essential structures that are often located in residential and industrial areas; thus an assessment of their seismic performance is an important engineering issue. In this paper, the seismic response ofunanchored steel liquid storage tanks is investigated using the endurance time （ET） dynamic analysis procedure and compared to responses obtained for anchored tanks under actual ground motions and intensifying ET records. In most cases, the results from ground motions are properly obtained with negligible differences using ET records. It is observed that uplifting of the tank base, which is closely related to the tank aspect ratio, has the greatest significance in the responses of the tank and can be predicted with reasonable accuracy by using currently available ET records.