Stress Diagram For Singly Reinforced Beam. For a beam it is necessary to provide reinforcement steel bars in the compression and tension zone. In a beam if the reinforcement is only in the stress zone it will be called the singly reinforcement beam and if the reinforcement is in the tension and compression zone it will be called the doubly reinforced beam.
Shrinkage Induced Deformation And Stresses On A Singly Reinforced Download Scientific Diagram from www.researchgate.net
Reinforced concrete beam sections in which the steel reaches yield strain at loads lower than the load at which the concrete reaches failure strain are called under reinforced sections. Whitney 1930 proposed an equivalent rectangular stress distribution which is adopted by aci 318. In both cases there will be a rod in the tension and compression zone.
Let b be the width of the beam and d the depth of the beam from the top compression edge to the centre of steel.
K k fcubd2 fst d d where f. Clearing doubts about ultimate strain in concrete and steel. 16 2 shows the strain and stress diagrams for concrete at the section. Follow my facebook page.
