Conceptual DOF count for a small 3D frame model

A teaching model has 20 ordinary space-frame joints and four fully fixed base joints. Estimate the unconstrained nodal degrees of freedom before considering special element constraints or solver condensation.

Visual crossing is not analytical connectivity

Two diagonal braces cross at the same screen location but were created as separate long members with no common incidence joint.

Plate aspect ratio is a screen, not a pass/fail rule

A quadrilateral plate has representative dimensions $1.0\text{ m}$ by $4.5\text{ m}$.

Mesh-refinement convergence check

A slab support-region moment result is $82$, $94$, and $97\text{ kN·m/m}$ for successively refined meshes. How should this be interpreted?

Generated warehouse geometry

A repetitive warehouse uses $6\text{ m}$ X-bays and $5\text{ m}$ Z-bays. How should repeat/generation tools be used safely?

Structure-wizard templates are starting geometry, not engineering decisions

A roof truss is created from a parametric template/Structure Wizard available in the installed STAAD version.