原文传递
Comparisons of Aerodynamic Data with the Main Wind Force-Resisting System Provisions of ASCE 7-16. Ⅱ: Mid- and High-Rise Buildings
| 题名： | Comparisons of Aerodynamic Data with the Main Wind Force-Resisting System Provisions of ASCE 7-16. Ⅱ: Mid- and High-Rise Buildings |
| 正文语种： | eng |
| 作者： | Wang, Jin;Kopp, Gregory A. |
| 作者单位： | Univ Western Ontario Fac Engn Boundary Layer Wind Tunnel Lab London ON N6A 5B9 Canada;Univ Western Ontario Fac Engn Boundary Layer Wind Tunnel Lab London ON N6A 5B9 Canada |
| 关键词： | Wind loads;Building aerodynamics;Low-rise buildings;ASCE 7 |
| 摘要： | This study assesses the wind load provisions for low-rise buildings with Chapters 27 and 28 in ASCE 7-16 and analyzes the dependence of the aerodynamics on the building geometric parameters. A systematic analysis of an aerodynamic database was used for this purpose. The mean and gust-factored uplift, base shear, and area-averaged wall pressure coefficients acting on the building surfaces comprise the main focus of this work. The results indicate that Chapter 27 captures the increasing tendency of roof uplift coefficients with larger roof heights reasonably well. The base shear obtained from the database is observed to vary with roof height, but conflicts with the design wind loads of ASCE 7-16. The ratio of roof height, H, to the horizontal plan dimension parallel to wind direction, L, is the critical non-dimensional geometric parameter to model the uplift, leeward wall, and side wall pressure trends for low-rise buildings. It is also observed that the uplift can be used as a predictor of the side wall pressure coefficients for low-rise buildings. The Chapter 28 provisions conservatively envelop the data for relatively low buildings, but underestimate the wind loads for H/L > 0.5. (C) 2020 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 147 |
| 期： | 3 |
| 页码： | 04020348.1-04020348.18 |
相关文献
- Comparisons of Aerodynamic Data with the Main Wind Force-Resisting System Provisions of ASCE 7-16. Ⅰ: Low-Rise Buildings
- Along-Wind Response of High-Rise Buildings Subjected to Hurricane Boundary Layer Winds
- Component and Cladding Wind Loads for Low-Slope Roofs on Low-Rise Buildings
- Composite Core Speeds Construction
- Influence of Architectural Facades on Wind Pressures and Aerodynamic Forces of Tall Buildings
- Investigation of the Aerodynamic Forces on a 600-m-High Supertall Building by Field Measurements and Wind Tunnel Test
检索历史
应用推荐
