a) Determine the value of the ratio L/rT. b) Determine the allowable bending stress in MPa.
a) Determine the value of the ratio L/rT. b) Determine the allowable bending stress in MPa.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Steel Design
W21x62 steel is used as a beam simply supported over a span of 8 m. The beam is laterally unsupported over the entire span. Fy = 250 MPa.
The properties of the section are as follows:
Depth, d = 533 mm
Flange width, bf = 210 mm
Flange thickness, tf = 15.6 mm
Web thickness, tw = 10.2 mm
Radius of gyration, rT = 53.34 mm
Section modulus, Sx = 2,077 x 103 mm3
a) Determine the value of the ratio L/rT.
b) Determine the allowable bending stress in MPa.
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