Flow-Chart%2C+doubly+reinf+sect

Flow-Chart%2C+doubly+reinf+sect - Trial and error procedure...

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Trial and error procedure to calculate c , then M n for doubly reinforced sections: Assume ε s ε y Guess c Calc. ε s ' cu cd c ε = Calc. f s ' = E s ε s ' f y Calc. C s ' = A s '(f s ' – 0.85f’ c ) Calc. C c = 0.85 f’ c b β 1 c Calc. T = A s f y cu dc c ⎛⎞ = ⎜⎟ ⎝⎠ Calc. ε s T C c + C’
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