Study on Bending Behaviour of Triangular Web Profile Steel Section by Finite Element Analysis

Abstract:

A triangular web profile (T_RIWP) steel section is a built-up section made up of two flanges connected to a web plate of triangular profile. This paper describes the study on the bending performance in major (I_x) and minor (I_y) axes of Triangular Web Profile (T_RIWP) compared to flat web (FW) steel sections. A number of finite element models were developed using finite element software LUSAS version 14.3. Thin shell element which is a family of shell element in 3D dimension was chosen to represent the element type of the model. Two sizes of FW as control specimens and two sizes of T_RIWP steel section which is 200×100×6×3 mm and 180×75×5×2 mm were used. Each of steel section was modeled using several spans such as 3m, 4m and 4.8m. The finite element results show that the deflections in major axes for TRIWP more than FW steel section. It was noted that, the value of I_x for the T_RIWP is 0.754 to 1.523 times the Ix of FW steel section. On the other hand, the deflections in minor axes for T_RIWP lower than FW steel section. The value of I_y for the T_RIWP is 1.818 to 1.686 times the I_y of FW steel section. It can be concluded that the T_RIWP is stiffer compared to FW steel section in minor axes and T_RIWP has a higher resistance to bending in minor axes than FW steel section.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 1539-1544
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.1539
• Online since: September 2011
• Authors: Fatimah De’nan, Nor Salwani Hashim
• Keywords: Finite Element, Bending, Triangular Web Profile Steel Section

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