Design a W section for member CD of the truss shown. Use A36 steel and assume there are two lines of three 18 mm bolts in each flange. Assume diameter of bolt hole = 20 mm. Neglect weight of the sections. Number of holes for each section are 4.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Design a W section for member CD of the truss shown. Use A36 steel and assume there
are two lines of three 18 mm bolts in each flange. Assume diameter of bolt hole = 20
mm. Neglect weight of the sections. Number of holes for each section are 4.

125 kN
125 kN
125 kN
125 kN
125 kN
3.6 m
3.6 m
3.6 m
3.6 m
3.6 m
3.6 m
3.6 m
Section
Area mm?
Depth
Flange Width
Flange Thickness
ry (mm)
W 10 x 29
W 12 x 27
W 12 x 31
147.29 mm
165.02 mm
5510 mm?
259.89 mm
7.34 mm
35.05
5129 mm?
303.78 mm
10.16 mm
38.81
5890 mm?
307.09 mm
165.74 mm
11.81 mm
39.12
W 8 x 28
5310 mm?
204.72 mm
166.12 mm
11.76 mm
41.15
Transcribed Image Text:125 kN 125 kN 125 kN 125 kN 125 kN 3.6 m 3.6 m 3.6 m 3.6 m 3.6 m 3.6 m 3.6 m Section Area mm? Depth Flange Width Flange Thickness ry (mm) W 10 x 29 W 12 x 27 W 12 x 31 147.29 mm 165.02 mm 5510 mm? 259.89 mm 7.34 mm 35.05 5129 mm? 303.78 mm 10.16 mm 38.81 5890 mm? 307.09 mm 165.74 mm 11.81 mm 39.12 W 8 x 28 5310 mm? 204.72 mm 166.12 mm 11.76 mm 41.15
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