Beams ~ these are horizontal load bearing members which are
classified as either main beams which transmit floor and secondary
beam loads to the columns or secondary beams which transmit
floor loads to the main beams.Concrete being a material which has little tensile strength needs to
be reinforced to resist the induced tensile stresses which can be in
the form of ordinary tension or diagonal tension (shear). The
calculation of the area, diameter, type, position and number of
reinforcing bars required is one of the functions of a structural
engineer.In-situ RC Framed Structures -- Beams