Page 157 - Handbook of Civil Engineering Calculations, Second Edition

1.140 STRUCTURAL STEEL ENGINEERING AND DESIGN

FIGURE 36

3. Determine the design compressive strength of this section
Using the suitable AISC Manual table, namely “Design Stress for Compression Members
of 36 ksi Specified Yield-Stress Steel, c 0.85,” and interpolating, for Kl/r 67.2,
c F cr 24.13 ksi (166.3 Mpa) the design compressive strength c P n 24.13kips/sq.in.
35.0 sq.in. 845 kips (3759 kN).
Related Calculations. This procedure is the work of Abraham J. Rokach, MSCE, As-
sociate Director of Education, American Institute of Steel Construction. SI values were
prepared by the handbook editor.

DETERMINING BEAM FLEXURAL DESIGN
STRENGTH FOR MINOR- AND MAJOR-AXIS
BENDING

For a simply supported W24 76 beam, laterally braced only at the supports, deter-
mine the flexural design strength for (a) minor-axis bending and (b) major-axis bending.