J Coast Disaster Prev > Volume 4(3); 2017 > Article
Journal of Coastal Disaster Prevention 2017;4(3):111-118.
DOI: https://doi.org/10.20481/kscdp.2017.4.111    Published online July 30, 2017.
Design of Pull Box Members on the Landing Pier Using Finite Element Analysis of a Steel Plate
Sungwon Kim, Hyemin Hong, Taek Hee Han, Seung Nam Seo
강재 플레이트 유한요소해석을 이용한 잔교 상부의 풀 박스 부재의 선정
김성원, 홍혜민, 한택희, 서승남
 
Abstract
"In this study, pull box members were designed by finite element analysis of a steel plate covering a pull box to secure its safety on the landing pier dedicated to the large research survey ship. It was assumed that the maximum load is due to the 250 tonf class crane used for unloading work when the working environment in the upper part of the landing pier was considered. The safety of the pull box was evaluated by the comparison between the yield strength of the steel plate and the result of stress analysis on the steel plate due to the crane load. It was found that the stress at the plate from the crane load exceeded the yield strength of the steel(205MPa) when the upper part of the pull box was protected by a 1950×1950mm steel plate cover. In order to compensate for this, a concrete filled steel tube(CFT) column with a diameter of 150 mm and a steel thickness of 10 mm was reinforced at the center of the plate, and the finite element analysis was carried out. However, the maximum stress at the steel plate was higher than the yield strength of the steel in some load cases so that it was tried to find appropriate thickness of the steel plate and diameter of the CFT columns. Finally, the analysis results showed that the safety of the pull box was secured when the thickness of the steel plate and the diameter of the CFT column were increased to 30mm and 180mm, respectively."
Key Words: Pull Box; Finite Element Analysis; Concrete Filled Steel Tube
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