If the unfactored shear actions due to dead and live loads are VG = 300 kN and VQ = 80 kN (including self-weight), calculate the nominal shear stress (vn) acting on the section. Give your answer below in MPa.
Beam description (repeated):
A simply supported beam with aT-shaped section is being designed, as shown in the figure below. The beam has overall dimensions of 900 mm wide top flange, 750 mm deep, and a web thickness of 400mm and flange thickness of 150 mm. A total of 7-HD25 longitudinal reinforcing bars are located in the bottom of the beam, 4-HD25 bars at the top, and 8 - HD16 in the flange. The concrete strength is f'c = 30 MPa. The depth to the centre of the bar group at the bottom of the beam is 675mm.
Question:
If the unfactored shear actions due to dead and live loads are VG = 300 kN and VQ = 80 kN (including self-weight), calculate the nominal shear stress (vn) acting on the section.
Give your answer below in MPa.
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