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Documentation/Modules/3.2 Frame Analysis

3.2 Frame Analysis

2D frame structural analysis

Standards catalog

Validation: indicative · Method band: fem

Open calculator

Indicative method: Indicative closed-form or numerical model

Assumptions

  • Linear elastic material behavior unless noted otherwise.
  • User is responsible for load combinations and load factors per the selected design code.

Limitations

  • Does not replace a licensed professional engineer or official code compliance review.

Engineering checks

CheckINDUSEUISO
Member stress utilizationimplemented———
Joint reaction equilibriumimplemented———

3.2 Frame Analysis (frames)

Purpose: 2D portal frame — column/beam frame with vertical load at mid-span.

Method: FEM — 2D frame elements (3 DOF/node: $u, v, \theta$); fixed-base left, pinned right typical pattern.

Inputs: bay width, column height, $E$, section properties, applied load.

Outputs: nodal displacements, member axial/shear/moment, deformed shape diagram.

Design codes: Indicative member stress and joint equilibrium checks only (generic mapper).

UI: Modern inputs/results; unit profile for length, force, stress.

Gaps: Single topology (portal); no user-defined joints/members; generic code checks only; high refactor risk.

Maintainer note: Matrix-heavy frame solver with tight coupling to UI assumptions.