Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs
Rainfall is often accompanied by strong winds. The large-span roof structure has a low height, its surrounding turbulence is high, and the wind speed changes greatly. The effects of coaction of wind and rain on the roofs cannot be ignored. Wind-driven rain (WDR) is an oblique movement phenomenon of...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9942223 |
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| author | Fangjin Sun Zhonghao Xu Daming Zhang Yanlu Wang |
| author_facet | Fangjin Sun Zhonghao Xu Daming Zhang Yanlu Wang |
| author_sort | Fangjin Sun |
| collection | DOAJ |
| description | Rainfall is often accompanied by strong winds. The large-span roof structure has a low height, its surrounding turbulence is high, and the wind speed changes greatly. The effects of coaction of wind and rain on the roofs cannot be ignored. Wind-driven rain (WDR) is an oblique movement phenomenon of raindrops generated by wind flow. Four types of hyperbolic roofs, that is, square, rectangular, circular, and elliptical, are selected as the objective to study the wind-driven rain by CFD simulation. Effects of wind direction, wind speed, and rainfall intensity on the WDR are analyzed. Pressure distribution of four types of hyperbolic roofs under coaction of wind and rain is obtained. The results are compared with those from the wind action only. The roofs are partitioned to obtain the coaction of wind and rain pressure of the four large-span hyperbolic roofs with different shapes under the most unfavorable working conditions. The results show that the average pressure coefficient of the roof surface increases with the increase of wind speed and rainfall intensity. The reference value of the average pressure coefficient of wind-driven rain on the surface of the roof is given, which provides a reference basis for the design of wind-driven rain on similar hyperbolic roofs. |
| format | Article |
| id | doaj-art-4d92b85ec0884177a5e4d4dec5401070 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-4d92b85ec0884177a5e4d4dec54010702025-02-03T06:44:15ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/9942223Coaction of Wind and Rain Effects on Large-Span Hyperbolic RoofsFangjin Sun0Zhonghao Xu1Daming Zhang2Yanlu Wang3Guangxi Key Laboratory of Geomechanics and Geotechnical EngineeringCollege of Civil EngineeringGuangxi Key Laboratory of Embedded Technology and IntelligenceCollege of Civil EngineeringRainfall is often accompanied by strong winds. The large-span roof structure has a low height, its surrounding turbulence is high, and the wind speed changes greatly. The effects of coaction of wind and rain on the roofs cannot be ignored. Wind-driven rain (WDR) is an oblique movement phenomenon of raindrops generated by wind flow. Four types of hyperbolic roofs, that is, square, rectangular, circular, and elliptical, are selected as the objective to study the wind-driven rain by CFD simulation. Effects of wind direction, wind speed, and rainfall intensity on the WDR are analyzed. Pressure distribution of four types of hyperbolic roofs under coaction of wind and rain is obtained. The results are compared with those from the wind action only. The roofs are partitioned to obtain the coaction of wind and rain pressure of the four large-span hyperbolic roofs with different shapes under the most unfavorable working conditions. The results show that the average pressure coefficient of the roof surface increases with the increase of wind speed and rainfall intensity. The reference value of the average pressure coefficient of wind-driven rain on the surface of the roof is given, which provides a reference basis for the design of wind-driven rain on similar hyperbolic roofs.http://dx.doi.org/10.1155/2021/9942223 |
| spellingShingle | Fangjin Sun Zhonghao Xu Daming Zhang Yanlu Wang Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs Shock and Vibration |
| title | Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs |
| title_full | Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs |
| title_fullStr | Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs |
| title_full_unstemmed | Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs |
| title_short | Coaction of Wind and Rain Effects on Large-Span Hyperbolic Roofs |
| title_sort | coaction of wind and rain effects on large span hyperbolic roofs |
| url | http://dx.doi.org/10.1155/2021/9942223 |
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