## Transcribed Text

Question 1: Determine the reaction forces
Question 2: Draw and label the Shear Diagram, V
Question 3: Draw and label the Moment Diagram, M
Question 4: Design the most economical beam W-shaped beam assuming a oall A36 steel of 160
MPa
Question 5: Re-design (if necessary) the most economical beam assuming a tall A36 steel of 80 MPa
as an additional criteria
Question 6: Compute the principal stresses, amax,min, and the maximum shear stress, Tmax, at the
junction at a section passing through point C
Question 7: Are there other sections along the beam's length where amax and tmax are larger in
magnitude? Explain & Evaluate.
Question 8: Comment on the beam selection earlier having computed amax,min and tmax
Question 9: On the same graph, plot the thickness of the beam at section passing through point C
versus the a) normal stress b) shear stress c) principal stresses and d) maximum shear stress
Question 10: Assuming the beam is made of cast iron, which is a brittle material, how would the
design selection be different?
Question 11: Knowing that the cross-sectional area of the beam is to be kept the same, comment on
whether a better performance can be obtained using:
a) T-shaped beam
b) U-shaped beam
c) hollow square beam
80 kN
50 kN/m
A
E
B
C
D
0.5 III
2.4 m
0.8 m
2 m

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