ABSTRACT
The aesthetics or architectural considerations sometimes necessitate a small beam section that is not adequate to resist the moment imposed on the beam. The moment capacity of doubly reinforced beams is assumed to comprise two parts. One part is due to the compression concrete and tensile steel. The other part is due to the compression steel and the additional tensile steel. A T-beam has five relevant dimensions such as flange width, flange thickness, width of web or stem, effective depth of beam, and tensile steel area. Under a positive bending moment, the concrete on the flange side resists compression, and the steel in the web resists tension. Concrete floor systems generally consist of slabs and beams that are monolithically cast together. In such cases, the slab acts as part of the beam, resulting in a T-shaped beam section.
