Indeterminate Beam Analysis Program (IBAP): Features & Capabilities Overview

Indeterminate Beam Analysis Program (IBAP): Features & Capabilities Overview

Purpose

IBAP is a structural-engineering software tool for analyzing statically indeterminate beams and continuous beam systems under various loads and support conditions.

Core features

• Multiple support types: Fixed, pinned, roller, elastic supports, and springs.
• Continuous spans: Analysis of multi-span beams with internal supports and discontinuities.
• Load types: Point loads, uniformly distributed loads, non-uniform distributed loads, varying triangular/trapezoidal loads, and temperature effects.
• Support settlements: Include prescribed support displacements or settlements in the analysis.
• Material and section properties: Input for variable cross-sections, composite sections, and differing material properties along spans.
• Static analysis methods: Classical stiffness/matrix method and force (flexibility) method implementations for indeterminate systems.
• Shear, moment, deflection outputs: Reaction forces, shear and bending moment diagrams, slope and deflection curves with numerical and graphical results.
• Eigenvalue/buckling checks: Basic linear buckling mode calculation for beams (if implemented).
• Load combinations: Multiple load cases and combinations with superposition capabilities.
• Design checks: Allowable stress and deflection checks per user-defined criteria or common codes (where supported).

Modeling & usability

• Graphical input: Drag-and-drop or sketch-based beam modeling with span splitting and support placement (if GUI provided).
• Scripting/API: Command-line or script-based input for batch processing and parametric studies (if supported).
• Import/export: Support for common data formats (CSV, DXF/IFC for geometry, or custom text formats) to integrate with CAD/FE workflows.
• Reporting: Automated report generation with diagrams, tables of reactions, internal forces, and summary of checks.

Analysis capabilities & accuracy

• Numerical solvers: Robust matrix assembly and linear solver routines, with options for direct or iterative solvers for large systems.
• Refinement controls: Mesh/slicing controls for more accurate deflection and moment results on complex loadings.
• Validation: Benchmark comparisons to classical solutions for simple cases and convergence checks.

Output & visualization

• Diagrams: Shear force, bending moment, slope, and deflection plots with scaling and annotation options.
• Tables: Numeric summaries of support reactions, maxima/minima of internal forces, and deflections with locations.
• Exportable figures/data: High-resolution plots and data tables for inclusion in reports.

Typical uses

• Preliminary design and verification of continuous beams.
• Educational tool for teaching indeterminate beam behavior.
• Quick checks and parametric studies in design offices.
• Integration into larger structural workflows for beam-specific analysis.

Limitations to consider

• May not replace full 2D/3D finite-element analysis for complex frames or plates.
• Nonlinear material behavior, large deflection (geometric nonlinearity), and dynamic time-history analyses may be limited or absent unless explicitly provided.

Recommended workflow

1. Define geometry, supports, and material/section properties.
2. Apply loads and load combinations.
3. Run analysis using stiffness/matrix method.
4. Review reactions, shear/moment diagrams, and deflections.
5. Perform code checks and iterate section or support design as needed.
6. Export results for documentation.

If you want, I can produce a sample input file, a short tutorial for a two-span continuous beam, or a comparison table vs. a full-frame FEA package.