F. K. Kong MA, MSc, PhD, CEng, FICE, FIStructE, R. H. Evans CBE, DSc, D ès Sc, DTech, PhD, CEng, FICE, FIMechE, FIStructE (auth.)-Reinforced and Prestressed Concrete-Springer US (1987)

Effects of shear reinforcement 205
Fig.6.3-2 Combination system oflinks and bent-up bars
1 ••....-_ Concrete
t compression
Vcz
~;:::======r,~ - Steel tenslon
Vd
v
Fig. 6.3-3 Shear transfer in beam with web reinforcement
v
Fig. 6.3-4 Truss analogy
longitudinal reinforcement; V s represents the shear force carried by the
web bars crossed by the diagonal crack. Thus
V = Vez + Va + Vd + Vs
(6.3-1)
where Ve represents Vez + Va + V d • Conventionally Ve is referred to as the
shear carrieel by the concrete and V s as the shear carrieel by the (web) steel.
In a typical beam, as the external shear Vis increased, the web steel yields
so that V. remains stationary at the yield value, and subsequent increase in