Overhanging Beam Calculator
Reactions and hogging moment for a beam with an overhang carrying an end point load.
INPUTS
m
m
kN
RESULTS
Reaction at A
-3.75 kN
Reaction at B
13.75 kN
Moment at B (hogging)
-15 kN·m
⚠ Uplift at A
Support A must hold the beam DOWN with 3.75 kN — anchor it
How it works
The overhang acts as a lever about support B: it amplifies RB above the applied load and can literally lift the beam off support A. The moment is entirely hogging (tension on top) over the support — the opposite of a simple span — and the section over B is the critical one.
Worked example
Span A–B = 4 m with a 1.5 m overhang and P = 10 kN at the tip: RB = 10·5.5/4 = 13.75 kN, RA = 10 − 13.75 = −3.75 kN (uplift!), MB = −15 kN·m hogging over support B.
Frequently asked questions
Related calculators
Need the full picture — SFD, BMD, deflected shape and a report?
Open EngineerStudio to build this as an interactive project with a verified solver and AI tutor.