As a typical slender structure, solar towers, which have been widely applied in recent years, are highly prone to significant vibrations under wind loads. Based on a 228.5 m-high solar tower, the wind-induced vibration control performance of Tuned Liquid Dampers (TLDs) was studied by wind tunnel tests. Firstly, a 1∶200 full aeroelastic test model of the solar tower was designed and fabricated, and the corresponding optimal parameters of the TLD were analyzed. Then, a miniature and multi-container TLD was designed for the aero-elastic test model, and wind tunnel tests for the model, both with and without the miniature TLD, were conducted respectively. Wind-induced responses of the tower, including top acceleration, displacement, base shear force and moment were measured. It was found that significant vortex-induced vibrations occurred within the range of the design wind speed (33 m/s). The results showed that wind-induced responses of the tower could be significantly suppressed by the TLD both in the cross-wind direction and the along-wind direction. With the installation of the TLD, the peak values of the top acceleration and displacement in the cross-wind could be reduced by 56.3% and 53.5%, respectively, and the corresponding reduction ratios for the base shear force and moment were 58.7% and 56.5%. At the design wind speed, the peak crosswind top acceleration and displacement were reduced by 48.4% and 40.3% , respectively, and the peak base shear force and bending moment were reduced by 65.4% and 45.5%.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |