Cover

where cmin = max[cminb; cmindur; 10 mm] where cminb = 20 mm, assuming 20 mm diam. reinf. cmindur = 15 mm for XC1 and using C30/37 Acde, = 10 mm Fire For 2 hours resistance, ami„ = 35 mm - not critical cnom = 20 + 10 = 30 mm

3.5.3 Load combination and arrangement c

Figure 3.19

Panel centred on grid C

Figure 3.19

Panel centred on grid C

By Inspection, Exp. (6.10b) Is critical. <Fig. 2.5>

n = 1.25 x 8.50 + 1.5 x 4.0 = 16.6 kN / m2 <BS EN 1990 Exp. (6.10b)>

Arrangement

Choose to use all-and-alternate-spans-loaded load cases and coefficients **. <5.1.3(1) & NA option b>

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