Question

4. (a) Knowing that and select the most economical wide-flange shape that should be used to support the loading shown. (b) Determine the values to be expected for and the principal stress at the junction of a flange and the web of the selected beam. 20 kips 11 kips/ft 20 kips B A E F C D -6 ft 2 ft 2 ft 2 ft 2 ft 5. The following problem refers to a rolled-steel shape selected to support a given loading at a minimal cost while satisfying the requirement of $\sigma_m$ less than or equal to $\sigma_{all}$. The shape is W250 X 28.4. For the selected design, determine (a) the actual value of $\sigma_m$ in the beam, (b) the maximum value of the principal stress $\sigma_{max}$ at the junction of the flange and the web. 50 kN/m A C D B 2.4 m 0.8 m 0.8 m

          4. (a) Knowing that and select the most economical wide-flange shape that should be used to support the loading shown. (b) Determine
the values to be expected for and the principal stress at the junction of a flange and the web of the selected beam.
20 kips
11 kips/ft
20 kips
B
A
E
F
C
D
-6 ft
2 ft 2 ft
2 ft 2 ft
5. The following problem refers to a rolled-steel shape selected to support a given loading at a minimal cost while satisfying the
requirement of $\sigma_m$ less than or equal to $\sigma_{all}$. The shape is W250 X 28.4. For the selected design, determine (a) the actual value of $\sigma_m$ in the
beam, (b) the maximum value of the principal stress $\sigma_{max}$ at the junction of the flange and the web.
50 kN/m
A
C
D
B
2.4 m
0.8 m
0.8 m

4. (a) Knowing that and select the most economical wide-flange shape that should be used to support the loading shown. (b) Determine
the values to be expected for and the principal stress at the junction of a flange and the web of the selected beam.
20 kips
11 kips/ft
20 kips
B
A
E
F
C
D
-6 ft
2 ft 2 ft
2 ft 2 ft
5. The following problem refers to a rolled-steel shape selected to support a given loading at a minimal cost while satisfying the
requirement of less than or equal to σall. The shape is W250 X 28.4. For the selected design, determine (a) the actual value of in the
beam, (b) the maximum value of the principal stress σmax at the junction of the flange and the web.
50 kN/m
A
C
D
B
2.4 m
0.8 m
0.8 m

Added by Kari P.

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