4. Figure P-130 shows a roof truss and the detail of the riveted connection at joint B. Using allowable stresses of t = 80 MPa and d=120 MPa, how many 20- mm diameter rivets are required to fasten member BC to the gusset plate? Member BE? What is the largest average tensile or compressive stress in BC and BE? %D 14 mm gusset plate 6m 4 m 4 m 75x 75 x 13 mm 96 kN 200 kN 96 kN 75 x 75 x 6 mm Figure P-130 and P-131 Pac

(2) h Q11 what the value of P Which are safer on the rivets as shown in figure below. given that : T=100.34 MPa, ob=370.3 MPa, 19mm diameter of .rivets 12.5m 19mm 12.5m 250mm P.

I neeed typing clear

The figure shows a horizontal steel bar of thickness h loaded in steady tension and welded to a vertical support. Find the load Fthat will cause an allowable shear stress, Tallow, in the throats of the welds. # h b = 51 mm, d = 49 mm, h = 4.7mm, and Tallow = 140 MPa The load F that will cause an allowable shear stress in the throats of the welds is kN.