A built-up beam made from fastening two channels to a wide flange section carries loads` as shown. The fasteners are 12mm∅ bolts with allowable shear stress τ= 110 MPa. For bearing, σb= 220MPa for single shear, and σb= 275 MPa for double shear. E=200 GPA. Fy=420 MPa.  1. Determine the horizontal shearing stress at 95 mm above the Neutral Axis. 2. Determine the spacing of the bolts.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A built-up beam made from fastening two channels to a wide flange section carries
loads` as shown. The fasteners are 12mm∅ bolts with allowable shear stress τ= 110 MPa. For
bearing, σb= 220MPa for single shear, and σb= 275 MPa for double shear. E=200 GPA. Fy=420
MPa. 

1. Determine the horizontal shearing stress at 95 mm above the Neutral Axis.
2. Determine the spacing of the bolts.

16 KN/m
10 KN/m
D
4m
1.35m
3.15m
1.5m
210mm
180mm
12mm
9mm
180mm
210mm
ww06
238 mm
Transcribed Image Text:16 KN/m 10 KN/m D 4m 1.35m 3.15m 1.5m 210mm 180mm 12mm 9mm 180mm 210mm ww06 238 mm
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