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. 6. Determine the horizontal shearing stress at 20 mm above the Neutral Axis. 7. Determine the horizontal shearing stress at 95 mm above the Neutral Axis. 8. Determine the spacing of the bolts.
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. 6. Determine the horizontal shearing stress at 20 mm above the Neutral Axis. 7. Determine the horizontal shearing stress at 95 mm above the Neutral Axis. 8. Determine the spacing of the bolts.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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.
6. Determine the horizontal shearing stress at 20 mm above the Neutral Axis.
7. Determine the horizontal shearing stress at 95 mm above the Neutral Axis.
8. Determine the spacing of the bolts.
Transcribed Image Text:16 KN/m
10 KN/m
D.
E
4m
1.35m
3.15m
1.5m
210mm
180mm
12mm
9mm
180mm
210mm
90mm
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