Question

To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added is_______

• A. 7% or 10%
• B. 13%
• C. 15% or 18%
• D. None of the above

Answer 1

Answer: (B)

To the calculated area of cover plates of a built up beam 13% area allowance is given to account for the holes of rivets. • In case of built up beams cover plates are used at top and bottom to brace the compression flange laterally.