A beam with four 32 mm bars as main tension steel has two of its bars symmetrically bent at the ends of the beam at 45∘. The design shear force (in kN) to be resisted by the stirrups, if the factored shear force at critical section is 420 kN is Assume
b=350mm,d=550 mm,fck=25N/mm2 and fy=415N/mm2,τcmax=3.1N/mm2,τc=0.6N/mm2