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As a large steel structure in the open environment, the miter gate will form a non-uniform time-varying temperature field under the solar radiation, resulting in complex temperature effect on the structure. If not paid attention to the project, it may lead to safety problems such as weld cracking and structure instability. The temperature field of the structure was analyzed by changing the surface coating and using finite element software. The results show that under solar radiation, the gate panel and the top beam form a multi-temperature area array distribution of temperature field, and the beam system temperature distribution is relatively uniform. The surface coating has great influence on the temperature field of the gate. The coating with low radiation absorption rate can reduce the temperature rise of the gate components, and the maximum temperature can be reduced by about 25%. The distribution of temperature field is greatly improved, which can effectively prevent local stress concentration or excessive deformation in the stress field and deformation field of the gate.
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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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