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Maximum deflection at mid-span a t = 26.6 mm = < |imit of iP^l = 28 mm

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10.1.4 Simplified approach

The procedure for this approach is to

(1) Calculate the maximum bending moment and the moment causing cracking

(2) Calculate the maximum deflections for the uncracked and fully cracked conditions, and use Eqn A.4.1 to assess the final maximum deflection.

From Section 10.1.3.2.1 the maximum bending moment M = 156.8 kNm, and the moment causing cracking Mcr = 76.7 kNm.

The maximum deflection of the uncracked section due to flexure 5 wt ai

c,ett

The maximum deflection of the cracked section due to flexure 5 wt an

c,eff n

In = 5448 x 106 mm4 Therefore

Final maximum deflection due to flexure

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