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Calculation Basis
Assumptions & Limits
- Preset values speed up the setup but do not replace final section or material verification.
- The page is designed for fast deflection and reaction checks.
- Local code rules, long-term effects, and connection details still need separate review.
Reference Basis
- Documentation: Methodology
- Documentation: Engineering Review
- Roark's Formulas for Stress and Strain
- Mechanics of Materials references
Composite Reference Setup
| System type | Composite steel-concrete beam |
| Model basis | Equivalent elastic stiffness estimate |
| Steel modulus E | 210 GPa reference |
| Preset equivalent inertia | 18000 cm^4 |
| Preset support case | Simply supported beam |
| Preset loading | Uniform load |
| Use case | Preliminary serviceability estimate |
Engineering Notes
- This page uses a simplified equivalent-stiffness approach, not a full composite beam design model with staged construction, creep, cracking, or connector-slip modeling.
- The preset works as a fast equivalent-EI estimate for an early serviceability check before detailed composite design.
- For final design, the effective stiffness should come from the actual composite section, shear connection level, and design standard rather than from a generic preset.
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