According to Whitney's theory, depth of stress block for a balanced section of a concrete beam is
limited to
(A) 0.43 d
(B) 0.537 d
(C) 0.68 d
(D) 0.85 d
Where d is effective depth of beam
limited to
(A) 0.43 d
(B) 0.537 d
(C) 0.68 d
(D) 0.85 d
Where d is effective depth of beam