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Fse-tensile-membrane-action-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 15 KB)
Summary
Midspan tension in a sagging floor strip as a multiple of the total load qL, against the sag-to-span ratio, for residual moments of 0, 0.25 and 0.5 times qL²/8. The marked point is the World Trade Center truss model. Based on Zarghamee, Kitane, et al. (2005), p. 311, and Zarghamee, Bolourchi, et al. (2005), p. xxxiii.
Original illustration for Tensile membrane action, level 4 Expert.
- Source basis: Zarghamee, Kitane, et al. (2005), p. 311 (formula, sag of the truss model); Zarghamee, Bolourchi, et al. (2005), p. xxxiii (60 ft span); calculation by Fire Safety Academy
- Alt text: Line chart: floor tension falls as the sag grows, with curves for no, a quarter and half residual moment and a marked point at a sag of L/17.
Licensing
New drawing by Fire Safety Academy. © Fire Safety Academy.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:27, 2 November 2026 | | 900 × 600 (15 KB) | Jan (talk | contribs) | Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity |
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