Question

56.5 Mpa

The internal shear force V at a certain section of a steel beam is 80 kN, and the moment of inertia is 64,867,500 mm. Determine the horizontal shear stress at point H, which is located L = 55 mm below the centroid. 15 mm 80 KN 10 mm 210 mm 210 mm O 41.0 MPa 48.5 MPa O 29.3 MPa O 37.1 MPa 56 5 MD

Answer 1

som Shear force V=80kn = 80X1000 N V-Boks 90mm Monom Aic fox (90-55) Ai = 10X35 = 350 mm2 y, ..- 90755 = 725 mm gumm Inim 72l A ) Az = 210x15 210mm Az lommeb A2=3150 mm2 Ya= 90+ is Y₂ = 9712 (thicknen) width at Helon shear stress th= at H &= Alyit A2Y2 64867500 mm v 10) I b = moment of Inexha 80x1000 ( Ary, + Az Y2) THE I b - 80x1000 (350X72-5 + 3150 X9722) 64867500 x 10 TH = 41.0066744 MPa option 0 41.0 MPa es correct Hence