Vertical shear failure Type III failure - resistance to vertical shear
Critical where steel sheeting has effective embossments (thus preventing Type II failure) Characterised by shearing of the concrete and oblique cracking
Vv.Rd bo d p k1k2 Rd bo : mean width of the concrete ribs Rd : basic shear strength = 0,25 fctk/c fctk : approximately 0,7 x mean tension resistance fctm Ap : effective area of the steel sheet in tension
hc
bo
k1 (1,6 d p ) 1
k2 1,2 40 Ap / bo d p 0,02
dp