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?

By
Ashutosh Mishra
·
Dec 24, 2019 ·Civil Engineering (CE)

3 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 .

Engineers Adda
answered
3 weeks ago

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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