Beam reaction calculator
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Result
RA13.33 kN
RB6.667 kN
Maximum bending moment26.67 kN·m
Step-by-step solution
Moments about A
RB·L = P·a → RB = 20·2/6 = 6.667 kN
Vertical equilibrium
RA = P − RB = 13.33 kN
Moment under the load
Mmax = RA·a = 26.67 kN·m
Key formulas
- Equilibrium
- ΣFx = 0, ΣFy = 0, ΣM = 0
- Uniform load
- resultant w·L at the middle of the load
- Moment
- M = F·d
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