Gross Section Cracked Transformed Section Gross …

Table 8-2 Gross and Cracked moment of inertia of Rectangular and Flanged Section Gross Section Cracked Transformed Section Gross and Cracked moment of inertia b b Es n =. Ec b B =. kd (nA s ). d h bh3. Ig =. nAs 12. As Without compression steel kd = ( 2dB + 1 1 /B ). Without compression steel = bk 3d3 /3 + nA s (d kd). 2. Icr (n -1)A's With compression steel b b r = (n 1) A s (nA s ). d'. kd A' s kd = 2dB(1 + rd /d) + (1 + r ) (1 + r ) /B. 2.. d h = bk 3d3 /3 + nA s (d kd) + (n 1)A s (kd d ). nAs 2 2. Icr As With compression steel b Es b n =. Ec hf C = b w (nA s ) , f = hf (b b w ) (nA s ) , kd h yt [. = h 1/2 (b b w )h2f + b wh2 ] [(b b w )hf + b wh].

8-4 Table 8-2 Gross and Cracked Moment of Inertia of Rectangular and Flanged Section b d nA s kd n.a. bw b d nA s kd n.a. d ' (n -1)A 's Gross Section Cracked Transformed Section Gross and Cracked Moment of Inertia

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  Moment, Inertia, Moment of inertia

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