TrussDesign 3D — 3D Truss Analysis & CSA S16-19 Steel Design

Project metadata

Project nameProject numberClientDesignerCheckerDateRevision

Material and resistance factors

CSA S16-19 Cl. 13.1

Steel gradeFy (MPa)Fu (MPa)E (MPa)G (MPa)γ steel (kN/m³)φCl. 13.1φuCl. 13.1Span for deflection limit (m)Deflection limit denominatorTruss mode — frees support rotations and gives members negligible Iy, Iz, J (pin-jointed behaviour)

Model summary

Joints / DOF	20 / 120
Members	48
Load cases	5
Combinations	12
Members designed	48
Max utilization	1.100
Equilibrium ΣFZ (kN)	-1.93e-12

Model overview

Limitations

Linear elastic, first-order analysis — no P-Δ / P-δ second-order effects.
No connection design, joint eccentricity, or panel-point rigidity modelling.
Lateral-torsional buckling covered only through the Cl. 13.8.2 terms shownCl. 13.8.2.
Companion load factors must be checked against NBC 2020 for the occupancy.
Section data must be verified against the CISC Handbook before use in production.