Contents
Fse-reduced-cross-section-method-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)
Summary
Cross-section of a beam heated on three sides. The char depth βt and the zero-strength layer δ are removed from each exposed face; the effective section keeps room-temperature properties. Based on White (2002), pp. 4-260 and 4-266 to 4-267.
Original illustration for Reduced cross-section method, level 4 Expert.
- Source basis: White (2002), p. 4-260 (char has virtually no load-bearing capacity, char base about 300 °C, rounded corners), p. 4-266 (Equation 27 and Figure 4-11.6, three- and four-sided exposure: redraw, do not copy), p. 4-267 (zero-strength layer added to char depth)
- Alt text: Cross-section of a timber beam heated on both sides and the bottom, showing the char layer, a 7 mm zero-strength layer and the smaller effective section.
Licensing
New drawing by Fire Safety Academy. © Fire Safety Academy.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:26, 2 November 2026 | | 900 × 600 (8 KB) | Jan (talk | contribs) | Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity |
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