For a rectangular beam with given dimensions: Analyzing the beam section to determine its moment strength and thus defining the beam section to be at one of the following cases:
Case 1: Rectangular beam with tension reinforcement only. This case exists if the moment strength is larger that the ultimate (factored) moment.
Case 2: Rectangular Beam with tension and compression reinforcement. This case may exist if the moment strength is less than the ultimate (factored) moment.
For T-section
concrete beam: Analyzing the beam T-section to determine its moment strength and thus defining the beam section to be one of the following cases:
Case 1: The depth of the compression block is within the flanged portion of the beam, i.e, the neutral axis N.A. depth is less than the slab thinness, measured from the top of the slab. This case exists if moment strength is larger than ultimate moment.
Case 2: The depth of the compression block is deeper than the flange thickness, i.e. the neutral axis is located below the bottom of the slab. This case exists if the moment strength of T-section beam is less that the ultimate (factored) moment.
Beam Section Shear
Strength: two separate charts outline in details Shear check. One is a basic shear check, and two is detailed shear check, in order to handle repetitive beam shear reinforcement selection. See shear check introduction page for further details.
