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Structural calculations to CSA and NBCC, every step shown with its clause.

Each published calc is checked against the code by hand. See how.

Concrete

  1. RC bracket and corbel

    Strut-and-tie design of a reinforced concrete bracket or corbel to CSA A23.3-24.
  2. Concrete shear friction

    Interface shear transfer by shear friction, to CSA A23.3.
  3. RC beam shear and torsion

    Combined shear and torsion design of a reinforced concrete beam, CSA A23.3-24 Cl. 11.
  4. Tension development length

    Development length of a straight reinforcing bar in tension, to CSA A23.3-24 Cl. 12.2.
  5. Compression development length

    Development length of a reinforcing bar in compression, to CSA A23.3-24 Cl. 12.3.
  6. Standard hook development length

    Development length of a standard hook in tension, to CSA A23.3-24 Cl. 12.5.
  7. Strip footing capacity New

    Bearing, one-way shear and flexure of a concrete strip footing to CSA A23.3.
  8. Pad footing capacity New

    Bearing, punching, one-way shear and flexure of a concrete pad footing to CSA A23.3.

Loads

  1. Seismic loads, rectangular tank

    Seismic design forces and overturning moments for a rectangular liquid-containing tank.
  2. NBCC load combinations

    Factored load combinations to NBCC 2020, with the governing maximum and minimum.

Steel

  1. Bolt capacity

    Factored shear and tensile resistance of a structural bolt to CSA S16-19.
  2. Weld capacity

    Factored shear resistance of a fillet weld to CSA S16 Cl. 13.13.
  3. Bolt prying action

    Prying action on a bolted tee or angle flange: flange, connection, bolt and web checks.
  4. Steel web shear capacity

    Shear stress capacity of an unstiffened steel web to CSA S16 Cl. 13.4.1.1.
  5. Connection transfer force New

    Axial force and shear on a braced beam-to-column connection, by the uniform force method.
  6. Single angle in compression New

    An equal-leg angle brace, concentric or bolted through one leg, to CSA S16 and AISC F10.
  7. WT in compression and bending New

    A WT brace with its stem in tension: compressive and flexural resistance and S16's interaction.
  8. Concentrated load on a beam web New

    Web yielding, crippling and sidesway buckling of a W shape, and bearing stiffeners, to CSA S16.
  9. Single angle in tension New

    An equal-leg angle brace bolted by one leg, its tension and end moments combined to CSA S16 Cl. 13.9.
  10. Double angle in tension New

    Two angles back to back as a tension brace, with the connection's eccentricity, to CSA S16.
  11. WT in tension New

    A WT brace under tension and a moment compressing its stem, AISC 360-22 F9 resistance, CSA S16 Cl. 13.9.

calcsheet is a set of structural engineering calculations that show their working. Each page takes a handful of inputs, runs the calculation in Python, and prints every step of the derivation: the formula in symbols, the same formula with the numbers substituted, and the result with its unit.