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Official Journal of the Japan Wood Research Society

Table 3 Load random variables parameters [17, 27]

From: A determination method of compressive design value of dimensional lumber

Random variables

Distribution

Nominal AVG

Cov (%)

Dead load (D)

Normal

1.06

7

Residential occupancy load (R)

Extreme-I

0.644

23.3

Official occupancy load (O)

Extreme-I

0.524

28.8

Snow load (S)

Extreme-I

1.04

22

Wind load (W)

Extreme-I

1.00

19

Uncertainty of the load effect (KB)

Normal

1.00

5