For a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed

Q. For a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of 2.5×10^-4. The curvature in the beam cross-section (in m-1, round off to 3 decimal places), is _

Solution:

   Given,
ϵ=ϵt=ϵc=2.5×10_⁻⁴
y = 250 mm = 0.25 m

As per flexure formula:

  =0.001m⁻¹