Structural Load-Bearing Wall Identification Risk Calculator
Estimates the composite risk score for misidentifying a structural load-bearing wall based on building characteristics, wall properties, and available documentation. Uses a weighted risk index model aligned with structural engineering assessment frameworks.
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Formula
Composite Risk Score (CRS):
CRS = (SLI × 0.25) + (PWC × 0.15) + (JOR × 0.15) + (CTA × 0.10) + (DDS × 0.15) + (EOS × 0.12) + (BARU × 0.08)
Risk Percentage:
Risk % = (CRS / 10) × 100
Sub-factor formulas:
- SLI (Structural Load Indicator) = (Position Score × 0.6) + (min(Stories × 2, 10) × 0.4) — reflects load path from above
- PWC (Physical Wall Characteristics) = (Thickness Score × 0.5) + (min(Length/20 × 10, 10) × 0.5)
- JOR (Joist Orientation Risk) = 9 if perpendicular, 5 if unknown, 2 if parallel
- CTA (Construction Type Ambiguity) = scored 4–10 by construction type
- DDS (Documentation Deficiency) = 10 (no drawings), 5 (partial), 1 (full drawings)
- EOS (Engineering Oversight) = 10 if no engineer review, 0 if reviewed
- BARU (Building Age & Renovation Uncertainty) = (Age Score × 0.5) + (Renovation Score × 0.5)
Risk Categories: Low (<25%) | Moderate (25–49%) | High (50–74%) | Critical (≥75%)