Table 2 Detailed information about different layouts.
From: Parametric Study of Different Unbonded Tendon Layouts in Pre-stressed Concrete Flat Plates
Case 1 | Case 2 | Case 3 | |
|---|---|---|---|
Span lengths [m] | Lx = 6, Ly = 6 (6 × 6) | Lx = 6, Ly = 9 (9 × 6) | Lx = 6, Ly = 11 (11 × 6) |
Slab thickness [mm] | 180 | 220 | 270 |
Column diameter [mm] | 300 | 400 | 500 |
fck [MPa] | 35 | 45 | 45 |
Creep coefficient | 2.29 | 1.80 | 1.74 |
Shrinkage strain [‰] | 0.49 | 0.47 | 0.47 |
Minimum reinforcement | |||
Bottom mesh | ø10 c300 | ø10 c200 | ø12 c230 |
Top, over columns, x-direction | 8 ø16 | 12 ø16 | 14 ø16 |
Top, over columns, y-direction | 8 ø16 | 16 ø16 | 24 ø16 |