Wind loads on an unequal-height double-span cylindrical roof

被引：0
|
作者：
Shan W. [1 ]
Zhang J. [1 ,2 ]
Li B. [1 ,2 ]
Yang G. [1 ]
Cheng X. [1 ]
Yang Q. [2 ,3 ]
机构：
[1] School of Civil Engineering, Beijing Jiaotong University, Beijing
[2] Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing
[3] School of Civil Engineering, Chongqing University, Chongqing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2018年 / 39卷
关键词：
Cylindrical roof; Fluctuating wind pressure; Mean wind pressure; Unequal-height span; Wind tunnel test;
D O I：
10.14006/j.jzjgxb.2018.S1.002
中图分类号：
学科分类号：
摘要：
Different from the normal wind loads characteristics of equal-height double-span cylindrical roofs, strong interference effects are generated around the unequal-height roofs. Unique pressure distribution patterns and values exit on the roof surfaces. Aiming to one kind of unequal-height double-span cylindrical roofs, wind tunnel test method was adopted to obtain pressure measurement data along all wind directions. Moreover, the mean wind pressure, fluctuating wind pressure and extreme wind pressures characteristics were achieved. The results show that although the mean wind pressure on unequal-height double-span cylindrical roofs surface are mainly negative pressure, the mutual interference effects between the two cylindrical roofs can cause corresponding separation and reattachment flow around the roofs. Especially in the eaves, roof and corner areas along the streamwise wind direction, the extreme negative pressure exists and its gradient changes greatly. © 2018, Editorial Office of Journal of Building Structures. All right reserved.
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页码：9 / 16
页数：7
相关论文
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