Dynamic response of cylindrical water storage tanks made byECC compared to normal concrete

IF 1.4 4区工程技术 Q3 ENGINEERING, CIVIL

Earthquakes and Structures Pub Date : 2021-05-01 DOI:10.12989/.2021.20.5.513

Pouria Sheikh Bahaeia, F. Behnamfar, A. Samani

引用次数: 0

Abstract

In this paper, the dynamic behaviour and seismic damages of concrete cylindrical water storage tanks are investigated. Furthermore, by modeling the reservoirs, using normal concrete and engineered cementitious composite (ECC), the effects of ECC on reducing the seismic damages of reservoirs are investigated. For this purpose, ANSYS software is used to perform the nonlinear dynamic analysis of the tanks and different parameters including the hoop force and bending moment of the wall and cracking or crushing of the concrete were examined. According to the results, the relationships and criteria provided in the ACI standard for design of tanks are recommended to be revised in certain parts. Unlike the normal concrete tanks, in those made of ECC, concrete fracture is not observed and the crack width remains very small at a level that is not problematic. Finally, the use of ECC in cylindrical water storage tanks is suggested as a strategy for reducing the seismic vulnerability of this type of hydraulic structures.

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ECC制作的圆柱形储水箱与普通混凝土的动力响应比较

本文对混凝土圆筒形贮水池的动力特性和地震损伤进行了研究。此外，通过对水库进行建模，使用普通混凝土和工程水泥基复合材料（ECC），研究了ECC对降低水库地震损伤的影响。为此，利用ANSYS软件对储罐进行了非线性动力分析，并检测了不同的参数，包括壁的环向力和弯矩以及混凝土的开裂或压碎。根据结果，建议对ACI储罐设计标准中提供的关系和标准进行某些部分的修订。与普通混凝土储罐不同，在ECC制成的储罐中，没有观察到混凝土断裂，并且裂缝宽度在没有问题的水平上保持非常小。最后，建议在圆柱形储水池中使用ECC作为降低此类水工结构地震易损性的策略。

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

Earthquakes and Structures ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL

CiteScore

2.90

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Earthquakes and Structures, An International Journal, focuses on the effects of earthquakes on civil engineering structures. The journal will serve as a powerful repository of technical information and will provide a highimpact publication platform for the global community of researchers in the traditional, as well as emerging, subdisciplines of the broader earthquake engineering field. Specifically, some of the major topics covered by the Journal include: .. characterization of strong ground motions, .. quantification of earthquake demand and structural capacity, .. design of earthquake resistant structures and foundations, .. experimental and computational methods, .. seismic regulations and building codes, .. seismic hazard assessment, .. seismic risk mitigation, .. site effects and soil-structure interaction, .. assessment, repair and strengthening of existing structures, including historic structures and monuments, and .. emerging technologies including passive control technologies, structural monitoring systems, and cyberinfrastructure tools for seismic data management, experimental applications, early warning and response