Rnv

Resultant force acting on bolt a per shear plane (a is the maximum loaded bolt in the group under the loading configuration being used) (equation (12.9))

Fd = J[ Fv.d + Fm.d.max • —) + ( F,d + Fm.d.max • — ) Fd = 2.71 X 103 N

Angle of Fd to horizontal, i.e. the angle to the grain in the timber (equation (12.10))

arccos

n adeg = 54.81 degrees

6. Embedment strength of the timber

Characteristic embedment strength of the timber parallel to the grain, fh.0.k

(The equation incorporates dimension factors for Mathcad.)

fh.o.k = 0.082 • ( 1 - 0.01 • mm) • (Pk^g") • (N • mm-2)

Embedment factor for softwood, k90 (Table 10.7 (EC5, equation (8.33))

r max a

Characteristic embedment strength of the fh.a.k = timber at an angle a to the grain (equation (10.36); EC5, equation (8.31))

7. Yield moment of a bolt

Characteristic yield moment of a bolt,

My.Rk

(Table 10.5 (EC5, equation (8.30)). (The equation incorporates dimension factors for Mathcad.)

0 0

Post a comment