Expert Guide
Structural Design Helpers
Thermal Expansion & Contraction
Quality Inspector
Estimate length change due to heat.
📐 Formula & Method
ΔL = L × α × ΔT.
ΔL = L × α × ΔT
📋 Worked Example
30m concrete member, 25°C change: • ΔL = 30000 × 0.000012 × 25 = 9 mm
❓ Frequently Asked Questions
In general building structures, expansion joints are recommended if the continuous length exceeds 45 metres.
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