Characteristics of Wind Pressure Spectra on Large Span Flat Roofs under Conical Vortex

摘要：

　　This paper presents the spectral model of conical vortex induced fluctuating wind pressure based on wind tunnel tests.The auto-spectral model consists components regarding with on coming turbulence spectra and signature turbulence spectra (including separation and vortex shedding), the contribution of each reflec ted in the weighted coefficients, which met the flow field characteristics.The cross-spectral was simplified as an exponential coherence function, with decay coefficient c =2.5, indicating that the correlation of wind pressure field is stronger than that of oncoming flow field.The model was validated by comparisons between the wind induced responses of wind tunnel data and spectral model.

作者: Ning Su Ying Sun Yue Wu

作者单位: School of Civil Engineering, Harbin Institute of Technology, Harbin, China

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 865-871

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）