Question
Download Solution PDFConsider the below statements with respect to characteristics of the bending moment diagram (BMD) for beam and identify the correct answer.
Statement A: If a beam is subjected to a uniformly distributed load throughout its span, the shape of BMD will be a cubic parabolic curve.
Statement B: If a cantilever beam is subjected to a uniformly varying load (UVL) throughout its span the maximum value of bending moment will be at a distance of 2/3rd of the span measured from zero intensity of UVL.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
i) Cantilever beam subjected to uniformly distributed load (UDL) throughout the span:
- If a cantilever beam is subjected to a uniformly distributed load (UDL) throughout its span the maximum value of the bending moment will be at its fixed support.
- If a cantilever beam is subjected to uniformly distributed load (UDL) throughout its span, the shape of BMD will be a parabolic curve.
ii) Cantilever beam subjected to uniformly varying load (UVL) throughout the span:
- If a cantilever beam is subjected to a uniformly varying load (UVL) throughout its span the maximum value of bending moment will be at its fixed support.
- If a cantilever beam is subjected to uniformly varying load (UVL) throughout its span, the shape of BMD will be a cubic parabolic curve.
Hence both statements are incorrect and option (4) is correct.
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