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Characteristic withdrawal capacity of nail, Fax Rk , is lesser of equations (10.57) (EC5, equations (8.24))

Fax.Rk.1 — fax.k ■ d ■ tpen and Fx.Rk.2 = fhax.k ■ d ■ t2 + fhead.k ■ dj^

Design strength of a nail in tension,

kmod,ii yM, correction

Number of nails required per metre, n n = ceil Nails spacing to be used, nailsp

Fa ax,d

nailsp = floor

Table 10.8 (EC5, Table 8.2) incorporating the requirements of EC5, 8.3.1.3(1) and (2), for nailed panel connections:

Minimum nail spacing parallel to the grain, nailsp,min

Ratio of actual to minimum nail spacing must exceed unity

Minimum unloaded edge distance for timber, nailspe,min nailsp,min = 0.85 ■ 10 d nailsp mm sp - = 1.55 i.e. OK

nailsp,min = 22.52 mm nail sp,min nailspe,min = 5 d nailSpe,min = 13.25 mm

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