![]() With E cm the secant modulus of elasticity of concrete f ct,eff is the mean value of the tensile strength of the concrete effective at the time when the cracks may first be expected to occur:į ct,eff = f ctm or lower, ( f ctm( t)), if cracking is expected earlier than 28 days ρ p,eff = ( A s + ξ 1⋅ A' p)/ A c,eff See application for a rectangular section or application for a T-section E s is the design value of the modulus of elasticity of the reinforcing steel, see § 3.2.7 (4) α e is the ratio E s/ E cm ![]() Where: σ s is the stress in the tension reinforcement assuming a cracked section,
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
June 2023
Categories |