Drag Coefficients of Elevator Shaft of Ultra-High Long-Span Transmission Tower with Height of 385 Meters

LI Buhui; NING Shuaipeng; ZHAO Yingneng; XUE Zhengyuan; SHEN Guohui

doi:10.13204/j.gyjzG22011304

Volume 52 Issue 8

Aug. 2022

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LI Buhui, NING Shuaipeng, ZHAO Yingneng, XUE Zhengyuan, SHEN Guohui. Drag Coefficients of Elevator Shaft of Ultra-High Long-Span Transmission Tower with Height of 385 Meters[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 28-33,118. doi: 10.13204/j.gyjzG22011304

Citation:

LI Buhui, NING Shuaipeng, ZHAO Yingneng, XUE Zhengyuan, SHEN Guohui. Drag Coefficients of Elevator Shaft of Ultra-High Long-Span Transmission Tower with Height of 385 Meters[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 28-33,118. doi: 10.13204/j.gyjzG22011304

Citation:

LI Buhui, NING Shuaipeng, ZHAO Yingneng, XUE Zhengyuan, SHEN Guohui. Drag Coefficients of Elevator Shaft of Ultra-High Long-Span Transmission Tower with Height of 385 Meters[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 28-33,118. doi: 10.13204/j.gyjzG22011304

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Drag Coefficients of Elevator Shaft of Ultra-High Long-Span Transmission Tower with Height of 385 Meters

doi: 10.13204/j.gyjzG22011304

1. China Energy Engineering Group Jiangsu Power Design Institute Co., Ltd., Nanjing 211102, China;
2. China Energy Engineering Group Zhejiang Power Design Institute Co., Ltd., Hangzhou 310007, China;
3. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China

Received Date: 2022-01-13
Available Online: 2022-12-01

Abstract

Abstract

Wind tunnel tests were conducted on sectional models and whole tower models to obtain the wind loading on the elevator shaft of long-span transmission towers. The influence of climbing ladders and interference of tower body on the drag coefficient of the elevator shaft was analyzed. The test results were compared with those regulated in different countries’ codes. Finally, the drag coefficients of the elevator shaft were recommended for the design. The results showed that the drag coefficients of elevator shaft with climbing ladder was larger than that of shaft without climbing ladder. With the interference effect of tower body, the drag coefficients significantly varied with the wind azimuth, reaching their maximum value at 35 degree and their minimum value at 45 degree. The aerodynamic coefficients of the shaft obtained from sectional model and whole tower model tests were almost equaled. The drag coefficients of the shaft with respect to wind azimuth under the interference of tower body were recommended. The maximum value of elevator shaft without climbing ladder was 0.93, which was quite close to 0.9 that was the drag coefficient of smooth circular cylinder recommended by Load Code for the Design of Building Structures (GB 50009-2012).
- elevator shaft,
- wind tunnel test,
- long-span transmission tower,
- drag coefficient,
- interference effect

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References(16)

References

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