A system consists of lifted steel tank and four assembly supports with variable assembly conditions
und | 27. Nov. 2018
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Article Category: Research Article
Online veröffentlicht: 27. Nov. 2018
Seitenbereich: 263 - 269
Eingereicht: 17. Aug. 2018
Akzeptiert: 11. Okt. 2018
DOI: https://doi.org/10.2478/sgem-2018-0026
Schlüsselwörter
© 2018 Jan Zamorowski, Grzegorz Gremza, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Figure 1
Figure 2
Figure 3
Figure 4
Resultant normal stress in the shell in the connection points for the wind W2.
| Towers without cantilevers | Towers with cantilevers | |||||||
|---|---|---|---|---|---|---|---|---|
| No. 3 | No. 4 | No. 1 | No. 2 | No. 3 | No. 4 | No. 1 | No. 2 | |
| - | MPa | MPa | MPa | MPa | MPa | MPa | MPa | MPa |
| 0 | 209.9/178.7 | 202.3/179.2 | 191.1/168.7 | 202.4/179.2 | 141.3/169.0 | 149.8/151.5 | 144.9/149.5 | 147.8/153.0 |
| 0.15 | 211.0/179.6 | 205.5/179.3 | 190.0/167.8 | 205.6/179.2 | 142.3/169.4 | 151.7/151.4 | 145.5/149.5 | 147.2/152.9 |
| 0.3 | 212.1/180.3 | 208.5/179.3 | 188.9/167.0 | 208.5/179.3 | 143.5/169.8 | 153.6/151.4 | 146.3/149.5 | 146.9/152.9 |
| ∞ | 206.6/176.3 | 207.9/178.9 | 194.2/170.9 | 207.9/178.9 | 143.5/165.9 | 146.3/151.5 | 146.7/149.3 | 155.1/152.7 |
Radial displacements of the shell in a connection point for the wind W2.
| Towers without cantilevers | Towers with cantilevers | |||||||
|---|---|---|---|---|---|---|---|---|
| No. 3 | No. 4 | No. 1 | No. 2 | No. 3 | No. 4 | No. 1 | No. 2 | |
| – | cm | cm | cm | cm | cm | cm | Cm | cm |
| 0 | 4.40 | 2.64 | 2.96 | 2.64 | 2.85 | 2.18 | 2.29 | 2.19 |
| 0.15 | 4.48 | 2.64 | 2.89 | 2.64 | 2.86 | 2.18 | 2.28 | 2.20 |
| 0.3 | 4.54 | 2.64 | 2.82 | 2.64 | 2.87 | 2.18 | 2.27 | 2.20 |
| ∞ | 4.20 | 2.64 | 3.16 | 2.64 | 2.81 | 2.18 | 2.33 | 2.20 |
Actions of the towers (kN) based on pinned supports.
| No. of towers | Vertical action ( | Resultant horizontal action ( | Ratio of actions ( | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Chord | Jack | Chord | Chord | Jack | Chord | Chord | Jack | Chord | |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Wind W1 – towers without cantilevers | |||||||||
| 3, 2 | – Lifted support, removed from the model. | 60.83 | 10.40 | – Lifted support, removed from the model. | 4.013 | 3.423 | – Lifted support, removed from the model. | 0.066 | 0.329 |
| 4, 1 | 5.45 | 62.79 | 4.57 | 3.868 | 0.014 | 3.629 | 0.710 | 0.000 | 0.794 |
| Wind W1 – cantilevers on the chord A in every towers | |||||||||
| 1 | 5.76 | 62.57 | 4.69 | 2.554 | 0.014 | 3.359 | 0.443 | 0.000 | 0.716 |
| 2 | 11.38 | 59.84 | – Lifted support, removed from the model. | 2.768 | 3.147 | – Lifted support, removed from the model. | 0.243 | 0.053 | – Lifted support, removed from the model. |
| 3 | – Lifted support, removed from the model. | 62.15 | 9.30 | – Lifted support, removed from the model. | 2.374 | 3.539 | – Lifted support, removed from the model. | 0.038 | 0.380 |
| 4 | 6.08 | 62.37 | 4.36 | 2.885 | 0.000 | 3.007 | 0.475 | 0.000 | 0.690 |
| Wind W2 – towers without cantilevers | |||||||||
| 3 | 4.80 | 57.51 | 4.80 | 3.291 | 0.010 | 3.291 | 0.686 | 0.000 | 0.686 |
| 4, 2 | 2.83 | 65.46 | 7.38 | 4.846 | 0.022 | 3.152 | 1.173 | 0.000 | 0.427 |
| 1 | 4.87 | 59.83 | 4.87 | 3.551 | 0.010 | 3.551 | 0.729 | 0.000 | 0.729 |
| Wind W2 – cantilevers on the chord A in every towers | |||||||||
| 1 | 4.71 | 61.79 | 5.66 | 2.761 | 0.010 | 3.121 | 0.586 | 0.000 | 0.551 |
| 2 | 6.01 | 62.99 | 4.40 | 2.400 | 0.000 | 3.833 | 0.399 | 0.000 | 0.871 |
| 3 | 4.45 | 59.25 | 5.83 | 2.311 | 0.010 | 2.700 | 0.519 | 0.000 | 0.463 |
| 4 | 3.52 | 62.97 | 6.89 | 3.464 | 0.020 | 2.750 | 0.984 | 0.000 | 0.399 |
Internal forces in connectors for the towers without cantilevers: wind W2.
| μ | Tower no. 3 | Tower no. 4 | Tower no. 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Connector | Connector | Connector | Connector | |||||||||
| kNm | kN | kN | kNm | kN | kN | kNm | kN | kN | kNm | kN | kN | |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| In the cross section at the side of the tank | ||||||||||||
| 0 | 2.061 | -30.0 | 3.27 | 1.504 | -34.9 | 4.24 | 1.496 | -33.7 | 3.76 | 1.539 | -31.3 | 3.58 |
| 0.15 | 2.088 | -30.0 | 3.26 | 1.502 | -34.8 | 3.92 | 1.497 | -33.8 | 4.08 | 1.541 | -31.3 | 3.59 |
| 0.3 | 2.113 | -30.0 | 3.25 | 1.499 | -34.7 | 3.63 | 1.498 | -33.9 | 4.37 | 1.514 | -31.3 | 3.60 |
| ∞ | 1.981 | -30.0 | 3.29 | 1.505 | -35.1 | 5.12 | 1.486 | -33.5 | 2.89 | 1.641 | -31.3 | 3.56 |
| In the cross section at the side of the carriage | ||||||||||||
| 0 | -6.526 | -30.0 | 3.27 | -8.478 | -34.9 | 4.24 | -8.149 | -33.7 | 3.76 | -7.376 | -31.3 | 3.58 |
| 0.15 | -6.499 | -30.0 | 3.26 | -8.457 | -34.8 | 3.92 | -8.171 | -33.8 | 4.08 | -7.405 | -31.3 | 3.59 |
| 0.3 | -6.474 | -30.0 | 3.25 | -8.439 | -34.7 | 3.63 | -8.191 | -33.9 | 4.37 | -7.432 | -31.3 | 3.60 |
| ∞ | -6.608 | -30.0 | 3.29 | -8.540 | -35.1 | 5.12 | -8.095 | -33.5 | 2.89 | -7.301 | -31.3 | 3.56 |