Wmw

3. Partial safety factors

Table 2.8 (UKNA to BS EN 1990:2002, Table NA.AI.2(B))) for the ULS

Permanent actions, yG Variable actions, yq

4. Actions

Total characteristic permanent action,

Total characteristic variable (imposed) action, Q k

Design action, Fd

(Table 2.8, equation (c) using the unfavourable condition variable action)

5. Modification factors

Factor for medium-duration loading kmod.med = 0.8 and service class 2, kmod.med (Table 2.4 (EC5, Table 3.1))

Size factor - beam depth greater than kh = 1.0 600 mm, kh

Lateral stability of the beam, kcr;t (4.5.1.2 (EC5, 6.3.3)) Effective length of each beam, 4f 4f = 0.9 ■ I + 2 ■ h (Table 4.2 (EC5, Table 6.1))

Critical bending moment, Mcrit (equation (4.7b))

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