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AECT250-Lecture 25

AECT250-Lecture 25 - Lecture 25 T Beams Concrete beams are...

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Lecture 25 - Page 1 of 9 Lecture 25 – T- Beams Concrete beams are often poured integrally with the slab, forming a much stronger “T” – shaped beam. These beams are very efficient because the slab portion carries the compressive loads and the reinforcing bars placed at the bottom of the stem carry the tension. A T-beam typically has a narrower stem than an ordinary rectangular beam. These stems are typically spaced from 4’-0” apart to more than 12’-0”. The slab portion above the stem is designed as a one-way slab spanning between stems (see Lecture 26). A typical T-beam has the following dimensions and notations: b w b w d Overhang width Clear distance h f = Slab thickness b = Effective flange width Main tension bars at bottom of stem Slab NOTE : Stirrups in T-beam are required (not shown in this sketch)
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