• Prof. Ajim Shaukat Shaikh
• Dr. Atteshamuddin Shamshuddin Sayyad

The majority of existing literature on castellated beam is focused on Simply supported analysis, but this paper provides new analytical solution for calculation critical buckling load by the cantilever action. In Simply supported castellated beam the maximum deflection occurs at the mid span of the Beam, but in cantilever castellated beam maximum deflection on the free end. By experimentally it was found that the value of web shear deformation on the critical buckling load of castellated beam increase with the increase in crass sectional area of the tee section and depth of web opening, but decrease with the length and web thickness. The experimental study of the castellated beam is tested on the cantilever action in the castellated beam the buckling capacity of the web post with fillet corner hexagonal web opening are compared with the web opening are compared with circular opening by this opening service pipe can also have passed through this. Comparison Between Castellated Beam and Cellular Beam is carried out by different test. A concentrated load or reaction point applied directly over a web-post cause this failure mode, such a failure mode could be prevented if adequate web reinforcing stiffeners are provided.in castellated beam we have to use hexagonal, Square opening and cellular has to kept circular web. Use of Castellated beam for various structure rapidly gaining appeal. This is due to increased depth of section without any addition of weight, high strength to weight ratio, their lower maintenance and painting cost. A castellated beam has some limitation also Stress concentration occurs near the perforation and the shear carrying capacity is reduced. Stress concentration may be reduced by making perforation near the neutral axis where the stresses are small and making the cut in zig-zag manner.

Buckling, Perforation, castellated beam, FEA.

"Structural Analysis of Castellated Beam in Cantilever & Fixed Action", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.114-119, May-2019, Available :http://www.jetir.org/papers/JETIRCA06023.pdf

"Structural Analysis of Castellated Beam in Cantilever & Fixed Action", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp114-119, May-2019, Available at : http://www.jetir.org/papers/JETIRCA06023.pdf