University of Tabriz Journal of Civil and Environmental Engineering 2008-7918 50 98 2020 05 21 Study on Buckling Behavior of Cylindrical Steel Tanks Subjected to Oblique Body Imperfection under Uniform External Pressure Study on Buckling Behavior of Cylindrical Steel Tanks Subjected to Oblique Body Imperfection under Uniform External Pressure 21 32 11124 10.22034/ceej.2020.11124 FA Mehdi Rastgar Civil Engineering, Islamic Azad University, Khoy Hossein Showkati Dept of Civil Eng, Urmia University Journal Article 2017 02 05 In this research, a field study was accomplished on the implementation of the storage tanks in a refinery site, and the resulted imperfections were identified and categorized. One imperfection experimentally modeled and the buckling behavior of these tanks was evaluated under uniform external pressure. The cylindrical tanks were examined using finite element analysis, and the results were compared with the experimental results. Investigating the findings demonstrated that such imperfection has a significant role in reducing the number of environmental waves in the body and increasing buckling resistance of the tanks under uniform external pressure. In this research, a field study was accomplished on the implementation of the storage tanks in a refinery site, and the resulted imperfections were identified and categorized. One imperfection experimentally modeled and the buckling behavior of these tanks was evaluated under uniform external pressure. The cylindrical tanks were examined using finite element analysis, and the results were compared with the experimental results. Investigating the findings demonstrated that such imperfection has a significant role in reducing the number of environmental waves in the body and increasing buckling resistance of the tanks under uniform external pressure. https://ceej.tabrizu.ac.ir/article_11124_493da4f660b99d444a19c1ea83339810.pdf