Observations and analysis of wind pressures on the floor underside of elevated buildings
Observations and analysis of wind pressures on the floor underside of elevated buildings
复制标题
高架建筑楼板底面风压观测与分析
DOI：
10.1016/j.engstruct.2020.111101
复制
发表时间：
2020
影响因子：
5.5
通讯作者：
Dao, Thang N.
中科院分区：
文献类型：
--
作者：
Kim, Jae H.;Moravej, Mohammadtaghi;Sutley, Elaina J.;Chowdhury, Arindam;Dao, Thang N.
在沿海地区，一种流行的建筑防洪方法是使用高跷或桥墩来提升建筑物。这些高架建筑结构的设计一般都很好，可以减少或承受洪水、风暴潮和携带的垃圾所产生的水动力荷载。然而，尽管高架建筑的空气动力学发生了变化，但高架建筑上的风荷载设计并没有得到很好的信息或法规。为了开始建立关于风对高架建筑影响的知识体系，在2018年迈克尔飓风之后，对佛罗里达州狭长地带沿海地区的此类结构进行了实地研究。此外，在佛罗里达国际大学的NHERI风实验设施墙进行了一座高架单层住宅的大型模型风洞试验。现场研究得到的底板底面损坏的证据与实验方案中的压力模式趋势是一致的。风洞模型底部测量的压力系数很大，而且经常与屋顶上的压力系数相似或更大，后者的估计程序已经建立得很好。这些发现表明，故意设计楼板底面压力是必要的，并为继续研究提供关键动力，以减少在过去飓风中观察到的损害。
A popular method of building flood-proofing in coastal regions is the use of stilts or piers to elevate buildings. These elevated building structures are generally well-designed to reduce or withstand the hydrodynamic loading resulting from flooding waters, storm surge and carried debris. However, design for wind loading on elevated buildings is not well-informed or codified, despite the changes in the elevated buildings’ aerodynamics. In order to begin developing the body of knowledge regarding wind effects on elevated buildings, a field study on such structures in the coastal region of the Florida Panhandle was conducted following 2018 Hurricane Michael. In addition, wind tunnel testing on large-scale models of an elevated single-story residential home was performed at the NHERI Wall of Wind Experimental Facility at the Florida International University. The evidence of floor underside damage from the field study are consistent with trends of pressure patterns from the experimental program. Measured pressure coefficients on the underside of wind tunnel models were significant and frequently of similar or greater magnitude to those on the roof, the latter for which estimation procedures have already been well-established. These findings show that deliberate design for floor underside pressures are necessary, and provide critical impetus for continued research in order to reduce damages observed in past hurricanes.
登录
查看更多内容
顺风阵风对高架结构的影响☆
影响因子：
5.5
作者：
C. Yun;A. Abdelrahman;P. Wang
通讯作者：
P. Wang
使用 12 扇风墙进行大规模实验，评估和减轻飓风风雨对建筑物和基础设施系统的影响
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
A. Chowdhury;I. Zisis;P. Irwin;G. Bitsuamlak;J. Pinelli;B. Hajra;Mohammadtaghi Moravej
通讯作者：
Mohammadtaghi Moravej
飓风艾克后玻利瓦尔半岛高架房屋的生存分析
影响因子：
3.2
作者：
Tori Tomiczek;A. Kennedy;S. Rogers
通讯作者：
S. Rogers
缓解规划
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
W. Highfield;W. Peacock;Shannon Van Zandt
通讯作者：
Shannon Van Zandt
影响因子：
5.5
作者：
R. Marshall
通讯作者：
R. Marshall