Research Article
Sustainability Design Considerations for Timber-Concrete Composite Floor Systems
Table 3
TCC allowable floor spans with associated embodied carbon for 250 mm spaced connectors.
| MTP | MTP thickness (mm) | Concrete thickness (mm) | Effective stiffness ((106) Nm2) | Span (m) | STC (dB) | Embodied carbon (kgCO2/m2 eq) | Total | Timber share | Reinforced concrete share |
| GLT | 89 | 0 | 0.08 | 2.62 | 39 | 15.4 | 15.4 | 0.0 | 50 | 1.87 | 4.98 | 49 | 39.0 | 23.6 | 75 | 3.03 | 5.39 | 52 | 51.3 | 35.9 | 100 | 4.9 | 5.92 | 55 | 62.6 | 47.2 | 140 | 0 | 0.61 | 4.26 | 42 | 23.0 | 23.0 | 0.0 | 50 | 4.61 | 6.26 | 49 | 46.6 | 23.6 | 75 | 6.07 | 6.44 | 52 | 58.9 | 35.9 | 100 | 8.22 | 6.75 | 55 | 70.2 | 47.2 | 186 | 0 | 2.09 | 5.73 | 45 | 29.7 | 29.7 | 0.0 | 50 | 8.91 | 7.39 | 49 | 53.3 | 23.6 | 75 | 10.65 | 7.43 | 52 | 65.6 | 35.9 | 100 | 13.06 | 7.60 | 55 | 76.9 | 47.2 |
| CLT | 105 (3 ply) | 0 | 0.34 | 3.80 | 40 | 11.9 | 11.9 | 0.0 | 50 | 2.7 | 5.47 | 49 | 35.5 | 23.6 | 75 | 3.94 | 5.78 | 52 | 47.8 | 35.9 | 100 | 5.88 | 6.21 | 55 | 59.1 | 47.2 | 175 (5 ply) | 0 | 1.73 | 5.50 | 44 | 18.2 | 18.2 | 0.0 | 50 | 8.41 | 7.29 | 49 | 41.8 | 23.6 | 75 | 10.04 | 7.33 | 52 | 54.1 | 35.9 | 100 | 12.35 | 7.50 | 55 | 65.5 | 47.2 | 245 (7 ply) | 0 | 4.75 | 6.88 | 47 | 24.6 | 24.6 | 0.0 | 50 | 19.65 | 9.01 | 49 | 48.2 | 23.6 | 75 | 21.73 | 8.92 | 52 | 60.5 | 35.9 | 100 | 24.43 | 8.93 | 55 | 71.8 | 47.2 | 315 (9 ply) | 0 | 10.2 | 8.16 | 49 | 31.0 | 31.0 | 0.0 | 50 | 38.35 | 10.63 | 49 | 54.6 | 23.6 | 75 | 40.94 | 10.46 | 52 | 66.9 | 35.9 | 100 | 44.07 | 10.37 | 55 | 78.2 | 47.2 |
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