SourcyFree tool
Simply supported beam calculator.
R, Vmax and Mmax for a simply supported beam under uniform load, equations shown. Drag the beam, use the sliders or type values.
Steel beam, uniform loadIllustrative example, not a design.
- Reaction at each support
- 3,780lb
- Shear at pointer
- 0lb
- Moment at pointer
- 17,010lb-ft
- Max moment
- 17,010lb-ft
- Beam
- PassesBending 49% of capacity, deflection 0.50 in, limit 0.60 in
Bending, 0 to 100% of capacity
Worked
Equations
Inputs
L = 18 ft · w = 420 plf
Reaction and shear
R = V = wL / 2
Moment
M = wL² / 8
Statics, computed in your browser. In the engine the run carries units and sources and prints with program version and code edition.
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