3.2. Common Rolled Steel Sections

Try these first

1. 1.

   What is the role of a slab in a flooring system?

   Hint

   Think about what people walk on.

2. 2.

   Name one type of rolled steel section.

   Hint

   What shape does an I-section resemble?

3. 3.

   What is the main function of secondary beams in a flooring system?

   • Support the slab
   • Transfer loads to columns
   • Bear the entire load

   Hint

   They are involved in the first stages of load transfer.

4. 4.

   True or False: I-sections are used for both primary and secondary beams due to their strength.

   • True
   • False

   Hint

   Consider the properties of the I-section.

5. 5.

   Design a simply supported beam with a span of 8 meters that must carry a total load of 12 kN/m including dead loads and live loads. Calculate the Bending Moment and Shear Force, and suggest a rolled steel section.

   Hint

   Use the formula for uniformly distributed loads.

6. 6.

   Discuss the importance of lateral bracing in beam design. How does it prevent buckling?

   Hint

   Consider how unsupported structures tend to sway or bend.