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As more and more water conservancy projects are constructed in the seismogenic fault zone in the western region, the probability of water conservancy projects encountering near-site vibration is also increasing. Due to the shallow buried depth of near-fault ground motions, the assumption of vertical incidence of seismic waves is no longer applicable. At present, there is little research on the seismic response of the intake tower under the oblique incidence of near-fault ground motions. In this paper, taking an engineering intake tower as an example, a three-dimensional plastic damage finite element analysis model of the intake tower is established, and the nonlinear response analysis of near-fault pulse ground motion SV wave under multi-angle oblique incidence is carried out. The results show that the displacement response of tower top under the oblique incidence of near-fault ground motion SV wave increases significantly, and the damage area and damage degree of tower body increase with the increase of angle.
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| 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 |
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