Question
A beam of length πΏ is loaded in the π₯π¦ βplane by a uniformly distributed load, and by a concentrated tip load parallel to the π§ βaxis, as shown in the figure. The resulting bending moment distributions about the π¦ and the π§ axes are denoted by ππ¦ and ππ§ , respectively.
Which one of the options given depicts qualitatively CORRECT variations of ππ¦ and ππ§ along the length of the beam?
Options :
Answer :
Solution :
Due to UDL, BM is negative and varies parabolically in vertical plane i.e bending moment is acting about Z-axis (Mz).
Due to Horizontal concentrated point load, bending moment is positive and varies linearly in horizontal plane i.e. bending moment is acting about Y-axis(My ).
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