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原文传递 Surrogate Modeling for the Seismic Performance Assessment of Liquid Storage Tanks

题名：	Surrogate Modeling for the Seismic Performance Assessment of Liquid Storage Tanks
正文语种：	英文
作者：	Konstantinos Bakalis; Michalis Fragiadakis;Dimitrios Vamvatsikos
作者单位：	National Technical Univ
关键词：	Seismic response; Earthquakes; Performance evaluation; Performance-based earthquake engineering; Liquid storage tanks; Nonlinear analysis; Analysis and computation.
摘要：	A three-dimensional surrogate model is presented for the seismic performance assessment of cylindrical atmospheric liquid storage tanks. The proposed model consists of a concentrated fluid mass attached to a single vertical beam-column element that rests on rigid beam-spokes with edge springs. The model is suitable for rapid static and dynamic seismic performance assessment. Contrary to other simplified models for tanks, its properties are determined through a simple structural analysis that can be performed in any nonlinear analysis software, without the need for complex finite-element models. The results compare favorably to those of three-dimensional finite-element models on three tanks of varying aspect ratios. A step-by-step example of the modeling procedure is presented for a squat unanchored tank, and a sensitivity analysis is conducted in order to investigate the effect of various modeling parameters on the seismic response of the proposed tank model. DOI: 10.106l/(ASCE)ST.1943-541X.0001667. © 2016 American Society of Civil Engineers.
出版日期：	2017.04
出版年：	2017
期刊名称：	Journal of Structural Engineering
卷：	Vol.143
期：	NO.04
页码：	04016199