The maximum positive bending moment in a fixed beam of span 8m and subjected to a central point load of 120 kN is (in kN-m)
  • a)
    240
  • b)
    120
  • c)
    80
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?

Civil Engineering (CE) Question

4 Answers
Mohammed Ashique answered Nov 14, 2018
Bending moment at centre of the span = (W×L)/4 ie (120 kn × 8 m )/4 = 240 kn-m. Since the load acting in the middle of span. Hence the load will be equally distributed at both endsTherefore max bending moment in fixed beam = 240 kn-m / 2= 120 kn-m .

Shadab Aziz answered Nov 25, 2018
Wl/8 = 120x8/8. = 120

Jalaluddin Mohd Akbar answered Mar 30, 2020
Bending moment at centre of the span
= (W×L)/4      ie (120 kn × 8 m )/4
= 240 kn-m.
Since the load acting in the middle of span. Hence the load will be equally distributed at both endsTherefore max bending moment in fixed beam
= 240 kn-m / 2= 120 kn-m .

Engineers Adda answered Feb 13, 2020
Bending moment at centre of the span
= (W×L)/4      ie (120 kn × 8 m )/4
= 240 kn-m.
Since the load acting in the middle of span. Hence the load will be equally distributed at both endsTherefore max bending moment in fixed beam
= 240 kn-m / 2= 120 kn-m .

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