Properties of bulk solid | Wheat | |||
---|---|---|---|---|
Average value | Parameter | Upper value | Lower value | |
Unit weight, γ [kN/m3] | - | - | 9.0 | 7.5 |
Internal friction angle, | 30 | 1.12 | 33.6 | 26.8 |
Concrete wall friction coefficient, μ | 0.57 | 1.16 | 0.661 | 0.491 |
(D3 wall type) | ||||
Lateral pressure ratio, | 0.54 | 1.11 | 0.599 | 0.486 |
Angle of repose, | 34 | |||
Patch load solid reference factor, | 0.5 | |||
Action assessment class | Class description |
---|---|
Action assessment class 3 (AAC3) | Silo with storage volume of >10,000 tons. |
Silo with storage volume of >1,000 tons, with any of the following calculation situations: | |
a) non-centric emptying at | |
b) low silos, with the eccentricity of the upper filling cone | |
Action assessment class 2 (AAC2) | All silos mentioned in Eurocode 1, Part 4 [ |
Action assessment class 1 (AAC1) | Silo with storage volume of <100 tons. |
Values of internal forces | Level | |||
---|---|---|---|---|
0.25 | 0.5 | 0.75 | ||
–97.51 | –232.55 | –398.24 | ||
–112.27 | –254.48 | –433.87 | ||
–131.26 | –308.19 | –487.33 | ||
101.05 | 165.67 | 195.77 | ||
113.35 | 173.13 | 201.99 | ||
113.5 | 173.39 | 205.98 | ||
–1.09 | –2.31 | –2.89 | ||
–1.7 | –3.39 | –4.33 | ||
–2.39 | –4.65 | –5.58 | ||
–5.78 | –11.34 | –13.89 | ||
–8.54 | –16.34 | –19.91 | ||
–11.47 | –20.82 | –23.05 |
Values of internal forces | Level | |||
---|---|---|---|---|
0.25 | 0.75 | 0.5 | ||
-128.93 | -267.79 | -417.14 | ||
-137.93 | -276.44 | -426.79 | ||
-146.39 | -284.68 | -431.66 | ||
126.82 | 213.18 | 228.26 | ||
139.09 | 221.04 | 253.38 | ||
144.14 | 232.03 | 263.44 | ||
0.76 | 2.9 | 1.46 | ||
1.83 | 3.61 | 3.57 | ||
2.32 | 4.61 | 4.47 | ||
4.43 | 9.05 | 6.76 | ||
6.28 | 10.42 | 10.61 | ||
7.31 | 12.34 | 12.42 |
Level, | Values of hoop moments, | ||||||
---|---|---|---|---|---|---|---|
% | % | % | |||||
0.25 | 4.43 | –5.78 | –8.54 | –11.47 | |||
0.5 | 9.05 | –11.34 | –16.34 | –20.82 | |||
0.75 | 6.76 | –13.89 | –19.91 | –23.05 |
Type of bulk solid | μ | μ | μ/tan | ec/r | Angle θ | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Barley | 0.48 | 1.16 | 0.410 | 28 | 1.14 | 31.92 | 0.658 | 0.790 | 0.660 | 0.479 | 8.9 | 14.8 | 24.9 |
Corn | 0.53 | 1.12 | 0.470 | 31 | 1.14 | 35.34 | 0.663 | 0.789 | 0.659 | 0.478 | 8.5 | 14.8 | 24.8 |
Wheat | 0.57 | 1.16 | 0.490 | 30 | 1.12 | 33.6 | 0.738 | 0.780 | 0.646 | 0.461 | 7.7 | 13.3 | 22.3 |
Number of elements (panels) | 15 (13 wall panels, 1 bottom plate panel, 1 cover plate panel) |
Number of distribution nodes | 4,030 |
Standard net dimensions | 40 cm × 131 cm |
Thickened net dimensions | 20 cm × 65 cm |
Number of stiff nodes (of edge elements) | 48 |