20.3.1.2. Partially Compact Section

Try these first

1. 1.

   Define a partially compact section.

   Hint

   Think about the classification based on ratios.

2. 2.

   What does the term 'local buckling' mean?

   Hint

   Consider what happens when parts of a beam cannot sustain loads.

3. 3.

   What is a partially compact section?

   • A. A section that cannot fail under load
   • B. A section with certain width-to-thickness ratios
   • C. An undefined term in beam design

   Hint

   Recall the criteria for classifying sections.

4. 4.

   True or False: All steel sections are designed to be compact to avoid local buckling.

   • True
   • False

   Hint

   Think about the varying classifications we covered.

5. 5.

   A steel beam section has a flange width of 8 inches and a flange thickness of 0.4 inches. If the yield strength (Fy) is 50 ksi and its web thickness is 0.25 inches, calculate if this section is partially compact and determine the design considerations.

   Hint

   You need to assess both flange and web in your evaluation.

6. 6.

   Design a beam with an unsupported height of 20 inches that is deemed partially compact. Describe how you could enhance its strength against local buckling.

   Hint

   Think about how additional features can support overall integrity.