


The principal property of a castellated beam is that we can increase the depth of the beam without increasing its weight. The properties of castellated beams are: 1. A comparison is done for various conditions.The Castellated beam name is derived from the Latin word "castellatus" meaning "built like a castle having regular openings in walls like a castle." These beams were designed as structural channels to improve the depth and strength of the beam without adding more material or weight.Įngineers faced steel shortages after WWII, and they discovered that castellated beams were cheap to build and had an excellent strength-to-weight ratio.Īs a result, castellated beams have been the preferred building solution since the 1950s and were commonly used in Europe to decrease the cost of steel structures due to the low ratio of labor cost to material cost. The deflection pattern at the center of castellated beam is studied for different parametric conditions by changing depth of hexagon to the depth of web ratio and also by changing the position of hexagon along the length of the beam. In this paper a steel beam is selected and Finite Element Analysis is done for constant loading and support condition by using ANSYS software. The principal advantage of castellation is the increase in vertical bending stiffness castellated beams have proved to be efficient for moderately loaded longer spans where the Design is controlled by moment capacity or deflection.

These are mainly designed to reduce weight and at the same time increase the efficiency in structural performance. These are fabricated from standard rolled section and are engineered to save time of construction, enabling saving in steel and reducing building costs. Castellated beams combine beauty, versatility, economy in steel design. “Castellated beam” is a name commonly used for type of expanded beam.
