Use ASD and select single-angle shapes for the web tension members of the truss loaded as shown in Figure P3.8-2. The loads are service loads. All connections are with longitudinal welds. Use A36 steel and an estimated shear lag factor, U, of 0.80. Note: you can select a single shape for the diagonal carrying the largest force and use that shape for all others. Select Angle Size:
(a) L3-1/2 x 3-1/2 x 1/4
(b) L3-1/2 x 3 x 1/4
(c) L3-1/2 x 2-1/2 x 5/16
(d) L3-1/2 x 2-1/2 x 1/4