Wind Pressure Characteristics of the Roof of Jining North Railway Station Under Downburst

LI Wei; ZHUANG Xinlong; SUN Yu; ZHAO Yuqi; XU Fanghui; SUN Xinhui; ZHANG Yingying

doi:10.3724/j.gyjzG23050607

Volume 54 Issue 7

Jul. 2024

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2024 > 54(7): 120-127

LI Wei, ZHUANG Xinlong, SUN Yu, ZHAO Yuqi, XU Fanghui, SUN Xinhui, ZHANG Yingying. Wind Pressure Characteristics of the Roof of Jining North Railway Station Under Downburst[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 120-127. doi: 10.3724/j.gyjzG23050607

Citation:

LI Wei, ZHUANG Xinlong, SUN Yu, ZHAO Yuqi, XU Fanghui, SUN Xinhui, ZHANG Yingying. Wind Pressure Characteristics of the Roof of Jining North Railway Station Under Downburst[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 120-127. doi: 10.3724/j.gyjzG23050607

Citation:

LI Wei, ZHUANG Xinlong, SUN Yu, ZHAO Yuqi, XU Fanghui, SUN Xinhui, ZHANG Yingying. Wind Pressure Characteristics of the Roof of Jining North Railway Station Under Downburst[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 120-127. doi: 10.3724/j.gyjzG23050607

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Wind Pressure Characteristics of the Roof of Jining North Railway Station Under Downburst

doi: 10.3724/j.gyjzG23050607

1. The First Company of China Eighth Engineering Bureau Ltd., Jinan 250100, China;
2. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received Date: 2023-05-06
Available Online: 2024-08-16

Abstract

Abstract

Downbursts are extremely destructive weather events that can cause massive damage to buildings. In order to investigate the influence of downburst on the roof of long-span structures, CFD was used to conduct numerical simulations, and Jining North Railway Station was taken as the prototype to explore the influence of wind angle, radial distance, and moving speed of cloud layer on the roof wind pressure. The results showed that, the upper roof of Jining North Railway Station was under negative wind pressure affected by the action of downburst, and the maximum negative wind pressure occurred in the windward area of the roof. The maximum wind pressure appeared at the front edge of the roof when the wind angle was 0°, and its maximum negative wind pressure coefficient could reach about -2.5. The maximum negative wind pressure of the roof of Jining North Railway Station occurred near the radial distance of 1.25D_jet, and the leeward area of the upper roof was less affected by the radial distance. The movement of the jet enhanced the negative wind pressure at the windward area of the roof.
- downburst,
- wind pressure characteristics,
- Jining North Railway Station,
- wind angle,
- radial distance

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References

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