1. Assuming the concrete is uncracked, compute the bending stresses in the extreme fibers of the beam at M = 275 kN-m. 2. Determine the cracking moments for the sections. shown if f'c = 28 MPa. 3. Compute the flexural stresses in the concrete and steel for the beams shown using the transformed- area method at M = 275 kN-m.

Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter5: Beams
Section: Chapter Questions
Problem 5.5.15P
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1.f = 11.46 MPa

2.Mcr= 88.90 kN-m

3.fconc= 17.14 MPa; fsteel= 318.20 MPa

n = 9
h = 600 mm
d = 525 mm
b = 400 mm
Reinforced with 3 – 28 mm dia.
Rebars
Transcribed Image Text:n = 9 h = 600 mm d = 525 mm b = 400 mm Reinforced with 3 – 28 mm dia. Rebars
1. Assuming the concrete is uncracked, compute the
bending stresses in the extreme fibers of the beam
at M = 275 kN-m.
2. Determine the cracking moments for the sections
shown if f'c = 28 MPa.
3. Compute the flexural stresses in the concrete and
steel for the beams shown using the transformed-
area method at M = 275 kN-m.
Transcribed Image Text:1. Assuming the concrete is uncracked, compute the bending stresses in the extreme fibers of the beam at M = 275 kN-m. 2. Determine the cracking moments for the sections shown if f'c = 28 MPa. 3. Compute the flexural stresses in the concrete and steel for the beams shown using the transformed- area method at M = 275 kN-m.
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