Case Study Evaluation of Farm and Commercial Grain Bins during the August 2020 Iowa Derecho Windstorm
Case Study Evaluation of Farm and Commercial Grain Bins during the August 2020 Iowa Derecho Windstorm
复制标题
案例研究 2020 年 8 月爱荷华州 Derecho 风暴期间农场和商业粮仓的评估
DOI：
10.1061/9780784484548.039
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Praeuner, Benjamin
中科院分区：
文献类型：
--
作者：
Wittich, Christine E.;Praeuner, Benjamin
2020年8月10日，一场德雷乔风暴席卷了中西部的几个州，包括内布拉斯加州、爱荷华州、伊利诺伊州和印第安纳州，造成长度超过750英里的结构性破坏。这次活动为评估农业结构的业绩提供了一个独特的机会，因为该国主要农业地区受到影响的面积非常大。这项研究的重点是钢粮仓，这是关键的结构，以支持农业产业和广泛的损害被观察到的反应。虽然有几个因素会影响恶劣风荷载下的钢粮仓的性能，本文提出的案例研究分析了两种常见类型的钢粮仓的性能，即农场箱和商业箱。这些垃圾箱的预期功能是相同的，但它们针对不同的操作规模进行销售。在本文中，相邻的，几何形状相似的农场和商业箱的性能，这是通过航空影像，结构从运动重建，以及手动测量和照片相结合的记录。虽然农场和商业垃圾箱在很大程度上是相同的，但农场垃圾箱在风暴中弯曲并升起，而商业垃圾箱则没有受损。箱的分析得出结论，外部加强筋的存在，旨在允许更大的存储尺寸，提供额外的阻力风荷载。
On August 10, 2020, a derecho windstorm occurred across several Midwestern states, including Nebraska, Iowa, Illinois, and Indiana, resulting in structural damage exceeding 750 miles in length. This event presented a unique opportunity to evaluate the performance of agricultural structures because of the unusually large area impacted in a predominantly agricultural region of the country. This study focuses on the response of steel grain bins, which are critical structures to support the agricultural industry and for which widespread damage was observed. While several factors impact the performance of steel grain bins under severe wind loads, the case study presented in this paper analyzes the performance of two common types of steel grain bins—namely, farm bins and commercial bins. The intended functions of these bins are the same, but they are marketed towards different scales of operation. In this paper, the performance of adjacent, geometrically similar farm and commercial bins is presented, which was documented through a combination of aerial imagery, structure-from-motion reconstructions, as well as manual measurements and photographs. While the farm and commercial bins were largely identical, the farm bins buckled and uplifted during the windstorm while the commercial bins were undamaged. Analysis of the bins concluded that the presence of exterior stiffeners, intended to permit larger storage sizes, provided additional resistance to wind loads.
影响因子：
3
作者：
Berman, Jeffrey W.;Wartman, Joseph;Peltier, Jaqueline
通讯作者：
Peltier, Jaqueline
DOI：
10.1080/24694452.2016.1194740
发表时间：
2016-01-01
影响因子：
3.9
作者：
Cutter, Susan L.;Ash, Kevin D.;Emrich, Christopher T.
通讯作者：
Emrich, Christopher T.
DOI：
10.1061/9780784482247.027
发表时间：
2019
期刊：
ASCE Structures Congress 2019
影响因子：
--
作者：
Brito, Lianne;Wittich, Christine
通讯作者：
Wittich, Christine