Question

A steel beam of breadth 120 mm and height 750 mm is loaded as shown in the figure. Assume $E_{steel}=200Gpa$.
The beam is subjected to a maximum bending moment of

• A. $3375kNm$
• B. $4750kNm$
• C. $6750kNm$
• D. $8750kNm$

Answer 1

The correct option is A $3375kNm$

Maximum bending moment occurs at the centre
$=\frac{w{L}^2}{8}=\frac{120\times (15{)}^2}{8}=3375kNm$