Free 2D Frame Calculator 📐

Create bending moment diagrams, shear force diagrams and measure deflection for a 2D frame.

Calculate 2D frame reactions, bending moments, shear forces, and deflections using real supplier components.
Tip: Start adding nodes to enable other features.

Node X Coord Y Coord Restraint
1
m
m
2
m
m
Element ID Start node End node
1
Load ID Applied to Node Load (x) magnitude Load (y) magnitude
1
kN
kN
Load ID Element ID UDL X magnitude UDL Y magnitude
1
kN
kN
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Your frame analysis results:

View your results for bending moment, shear force, axial force, reaction forces, deflections.
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Bending Moment (kNm)
Worst case predicted: kNm
Shear Force (kN)
Worst case predicted: kN
Axial Force (kN)
Worst case predicted: kN
Support Reactions (kN)
Worst case predicted (x): kN
Worst case predicted (y): kN
Displacement (m)
This analysis assumes the same stiffness is applied to all elements
Edit the stiffness below & re-analyse.
Young's Modulus GPa
Area cm2
2nd Moment of Area cm4
Worst case displacement: mm

Analysis validation

Contribute to this code

This code is open source and you can contribute to it's development.
You can find the source code on GitHub here: anaStruct
Special credits: Ritchie Vink