Comparison of the vertical deflection of loaded T and RSF stiffeners of marine structures

  • Ratthakrit Reabroy Faculty of International Maritime Studies, Kasetsart University, Chonburi 20230, Thailand
  • Ke Sun College of Shipbuilding Engineering, Harbin Engineering University, Harbin 15000, China
Keywords: Rectangular Support Flange Stiffener (RSF), Beam deflection, Simply supported beam, Non-conventional stiffener, Stiffened plate


This work aims to compare the vertical deflection between perfect T and Rectangular Support Flange (RSF) stiffeners when subjected to forces and pressures. The geometry of stiffener models comprises the conventional T stiffener model design, used in double hull oil tankers, and the RSF stiffener, which is of a modified type whose design is based on T stiffener specifications. The deflection theories of simply supported beam were studied by the double integral method. Finite Element Analysis (FEA) is used to design and simulate the vertical deflection and the maximum equivalent stress of stiffeners when subjected to force and pressure under the same boundary condition. Various stiffener models are studied, and the FEA results presented graphically. The theoretical and FEA results are in good agreement. The load-deflection curves show that the performance of the RSF stiffener is superior to that of the conventional T stiffener.


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How to Cite
Reabroy, R., & Sun, K. (2020). Comparison of the vertical deflection of loaded T and RSF stiffeners of marine structures. Maritime Technology and Research, 2(3), 131-158.