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A Parametric Study of Optimization of Castellated Beam with Stiffener

Author(s):

Mr. Chetan Thakur , Dr. A. P. J Abdul Kalam University, Indore; Mr. Ashwin Hardiya, Dr. A. P. J Abdul Kalam University, Indore

Keywords:

Castellated beam, Diagonal Stiffener, Double Vertical Stiffener, Finite Element Analysis (ABQUS)

Abstract

Castellated beams are steel beams with web opening and they gain its advantage due to its increased depth of section without any additional weight. However one consequence is the presence of web opening which leads to various local effects like shear and deformation. Use of castellated beams is very popular now days to its advantageous structural applications. These beams are fabricated by cutting the web of hot rolled steel I section into zigzag pattern and therefore rejoining it over one another. The opening is made hexagonal, circular, diamond or square in shape. In this study is considering structural performance of the beam, the size and diamond shape of openings is provided in the web are always an important issue concern. the research work is carried out in optimizing size of castellated beam with diamond opening have reported that castellated beams fail mainly by local failure modes and stress concentrations at opening edges. In this paper steel I section ISMB 150 is selected and castellated beams are fabricated such that depth of the beam is 1.5 times of the original depth. The beam is analysed using Finite Element Analysis (ABQUS) also by Eurocode for different opening sizes and results obtained is experimentally validated. Two point loads is applied and load carrying capacity of the beam with and without stiffener is studied. Stiffener is introduced diagonally, double Vertical stiffener in transverse direction on web opening along the shear. The main aim of this study is the behaviour of the castellated beam with stiffeners and further extends to optimization of stiffeners considering position size and its thickness.

Other Details

Paper ID: IJSRDV7I90238
Published in: Volume : 7, Issue : 9
Publication Date: 01/12/2019
Page(s): 246-252

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