Civil, geotechnical, mechanical and facade calculations

Equation Pad is not only for structures. Any engineering calculation that has to be shown, checked and issued fits on its sheets: civil and highway design, geotechnics, mechanical design, building services and facade engineering.

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Civil and geotechnical engineering

Earth pressures, bearing capacity, settlement, slope checks, pipe flow and drainage: write the formulas with units, keep soil parameters in a spreadsheet, and plot results against depth.

c := 5 kPa
phi := 28 deg
K_0 := 1 - sin(phi) =
sigma_v := 19 kN/m^3*4 m = kPa
sigma_h := K_0*sigma_v = kPa

Mechanical design calculations

Shafts, springs, bolted joints, pressure vessels, power and torque, heat transfer: units such as N·m, rpm, kW, bar and W/(m·K) are built in.

P := 15 kW
n := 1450 rpm
T := P/(2*pi*n) = N*m
d := 30 mm
tau := 16*T/(pi*d^3) = MPa

Facade engineering

Wind pressures on panels, glass and bracket checks, thermal movement and fixings, with a sketch of the detail from the drawing board on the same sheet.

Engineering calculation templates

Save a finished worksheet as an .eqnpad file and use it as the starting point next time: change the inputs and every result updates. Collapsible areas keep the supporting working tidy.

See also

Also used for

• Structural calculations
• Worked examples
• Calculation sheets
• Report generator
• Online calculation pad
• Unit calculator
• Matrix calculator
• Equation solver
• Graph plotter
• Spreadsheet with units
• For students
• Beam deflection
• Section properties
• Euler buckling
• Truss analysis
• Stiffness matrix method
• Natural frequency
• Principal stresses
• Pipe flow head loss
• Heat transfer, U-value
• Cable sag and tension
• Private and local
• .eqnpad files

Equation Pad runs in your browser, with nothing to install, and we never see or store your calculations. Results must be checked by a competent person before they are relied on; see the disclaimer.

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