Question
Download Solution PDFA cantilever beam of 4 m span carries three point loads of 1 kN, 2 kN and 2 kN at 2 m, 3 m and 4 m from the fixed end respectively. What is the bending moment at 3 m from fixed support?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Consider a cantilever of length l carries a concentrated load 'w' at its free end:
Taking moments about the section:
M = -Wx
The maximum bending moment occurs at the fixed end i.e. M = -WL
Calculation:
We have to find bending moment at C.
Let, B.M be Mx clockwise at C
So, Mx + 2 × (1) = 0
Mx = –2
Hence, bending moment will be 2 kNm anticlockwise.
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