of W21 x 50 section mm2 m 58 x 10°mm3 Sy = 125.20 x 10?mm3 bf = 165.9 mm Ix = 409.57 x 10mm4 ly = 10.36 x 106mm d = 529.1 mm

What is the internal force acting on member DF, EF and EG? Please dictate if its in compression or in tension. Complete solutions please.

Given the truss shown, solve the following. Use A36 steel and assume there are two lines of three 19 mm bolts in each flange. Hole diameter is assumed to be three mm more than the bolt diameter. Neglect the weight of the section. a.What is the capacity of member CG? b. Design member CG using a W section. c. What is the tensile capacity of the section for CG based on gross area? The following W Section were considered for the design: W10x33 W14x38 W8x40 W16x36 W10x39 W8x13 189 KN 1.50 HL B 145 KN 1.50 E + 137 KN 121 KN -3.00 + 12.00 3.00 154 KN + W4x13 W6x9 W10x12 200 KN -1.50 1.50 1 030 T 1.20 +2.40 0.60 L i 0.30

Where Fy =248 Mpa