| 多国规范山地风速地形修正系数对比研究 |
| |
| 引用本文： | 胡伟成, 杨庆山, 张建. 多国规范山地风速地形修正系数对比研究[J]. 工程力学, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897 |
| |
| 作者姓名： | 胡伟成 杨庆山 张建 |
| |
| 作者单位： | 1.北京交通大学土木工程系, 北京 100044;;2.重庆大学土木工程系, 重庆 400044;;3.结构风工程与城市风环境北京市重点实验室, 北京 100044 |
| |
| 基金项目： | 国家自然科学基金重点项目（51578059） |
| |
| 摘 要： | 在山区建筑物抗风设计中，必须考虑地形对风场的影响。对比分析了中国GB 5009-2012、日本AIJ-2004、美国ASCE/SEI 7-10、加拿大NBC-2005、国际ISO标准ISO 4354-2009(E)、澳大利亚/新西兰AS/NZS 1170.2-2011、欧洲BS EN 1991-1-4-2005、德国DIN 1055-4、英国BS 6399-2-1997等荷载规范中关于山地风速地形修正系数的有关规定。为便于比较，将地形修正系数计算公式统一形式。结合单体山峰风洞试验，探讨了不同坡度、不同维度山峰的迎风区、山顶和背风区的地形修正系数分布，对地形修正系数的规定提出建议。
|
| 关 键 词： | 山地地形 风场 荷载规范 地形修正系数 风洞试验 |
| 收稿时间： | 2017-11-24 |
| 修稿时间： | 2018-03-30 |
COMPARATIVE STUDY ON WIND TOPOGRAPHIC FACTOR OF HILLY TERRAIN BY DIFFERENT CODES AND STANDARDS |
| |
| HU Wei-cheng, YANG Qing-shan, ZHANG Jian. COMPARATIVE STUDY ON WIND TOPOGRAPHIC FACTOR OF HILLY TERRAIN BY DIFFERENT CODES AND STANDARDS[J]. Engineering Mechanics, 2018, 35(10): 203-211. DOI: 10.6052/j.issn.1000-4750.2017.11.0897 |
| |
| Authors: | HU Wei-cheng YANG Qing-shan ZHANG Jian |
| |
| Affiliation: | 1.Department of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;;2.Department of Civil Engineering, Chongqing University, Chongqing 400044, China;;3.Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing 100044, China |
| |
| Abstract: | Wind topographic effect should be considered for the wind-resistant design of buildings in hilly terrain. A detailed comparison on wind topographic factor of hilly terrain is made considering different Codes and standards, such as China (GB 50009-2012), Japan (AIJ-2004), America (ASCE/SEI 7-10), Canada (NBC-2005), ISO (ISO 4354-2009(E)), Australia/New Zealand (AS/NZS 1170.2-2011), Europe (BS EN 1991-1-4-2005), Britain (BS 6399-2-1997), etc. The expressions for calculating wind topographic factor are modified to a simplified unified form for the clarity of concepts. To investigate the distribution of the topographic factor along the hillside, wind tunnels test results of a single hill model with different slopes are introduced. Some suggestions for topographic factor are put forward. |
| |
| Keywords: | hilly terrain wind field load codes and standards wind topographic factor wind tunnel test |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《工程力学》浏览原始摘要信息 |
|
点击此处可从《工程力学》下载全文 |
|
