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Earthquakes and Structures Volume 20, Number 5, May 2021 , pages 513-529 DOI: https://doi.org/10.12989/.2021.20.5.513 |
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Dynamic response of cylindrical water storage tanks made by ECC compared to normal concrete |
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Pouria Sheikh Bahaei, Farhad Behnamfar and Abdolreza Kabiri Samani
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| 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. | ||
| Key Words | ||
| concrete tanks; ECC; dynamic analysis; nonlinear; hysteresis; ANSYS | ||
| Address | ||
| Pouria Sheikh Bahaei: Department of Civil Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran Farhad Behnamfar:Department of Civil Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran Abdolreza Kabiri Samani:Department of Civil Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran | ||