SGER Performance of Glass/Cladding of High-Rise Buildings in Hurricane Katrina and its Impact on the Viability of Vertical Evacuation

卡特里娜飓风中高层建筑玻璃/覆层的 SGER 性能及其对垂直疏散可行性的影响

• 批准号: 0553060
• 负责人: Ahsan Kareem
• 金额: $ 1.5万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-10-01 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0553060&HistoricalAwards=false
• 关键词: SGER; Performance; Glass; Cladding; Rise

SGER Performance of Glass/Cladding of High-Rise Buildings in Hurricane Katrina and its Impact on the Viability of Vertical EvacuationKatrina, a Category 5 hurricane just before landfall, pummeled the high-rise buildings in the downtown and entertainment districts of New Orleans on August 29, 2005, strewing the streets of New Orleans with broken glass, roof top appurtenances, street signs, awnings, aluminum sidings, cladding components, building interior furnishings and fallen trees. Reportedly, locals and tourists seeking vertical evacuation to avoid the floodwaters encountered winds that gushed through broken windows with drenching rains and sent them scurrying for shelter in the interior parts of these high-rise buildings. The NatHaz Modeling Laboratory at the University of Notre Dame ( www.nd.edu/~nathaz ) will conduct a field reconnaissance study to assess first-hand the damage to cladding and glass of high-rise buildings, and will secure perishable information and data. The focus of this study is on gathering surface wind records in the locale of these buildings or in their surrounding areas, and examining the damage to glass and cladding of high-rise buildings. Based on wind directions, availability of flying debris in their path, scenarios for the damage of glass/cladding will be established. This information will be used in correlating wind speeds to the observed damage, in establishing possible causes of damage and in assessing the adequacy of building codes and standards. In light of the breaches in building envelopes through broken glass experienced by many buildings, the potential of these buildings for possible vertical evacuation will be examined from structural integrity and functionality perspectives. The final report will catalog the collected information and observations based on the preliminary analysis for dissemination to other researchers in structural engineering as well as emergency management areas for follow-up studies. The findings of this study will provide significant input on the performance of glass cladding of buildings in hurricane prone regions. This would assist communities in hurricane areas to assess the condition of their buildings prior to hurricane season for possible retrofits. This study will also provide a critical input to emergency management groups in the coastal regions of U.S. threatened by hurricanes for assessing the viability of vertical evacuation in high-rise buildings.

卡特里娜飓风中高层建筑玻璃/覆层的SGER性能及其对垂直疏散可行性的影响2005年8月29日，卡特里娜飓风登陆前的5级飓风袭击了新奥尔良市中心和娱乐区的高层建筑，新奥尔良的街道上散落着破碎的玻璃，屋顶附属物，街道标志，遮阳篷，铝壁板，包层组件、建筑内部家具和倒下的树木。 据报道，当地人和游客寻求垂直疏散，以避免洪水遇到的风，通过破碎的窗户与倾盆大雨，使他们匆忙在这些高层建筑的内部避难。 圣母大学NatHaz建模实验室（www.nd.edu/~nathaz）将进行实地勘察研究，以评估高层建筑覆层和玻璃的第一手损坏情况，并将保护易腐烂的信息和数据。 本研究的重点是收集这些建筑物所在地或其周围地区的地面风记录，并检查高层建筑物的玻璃和覆层的损坏情况。 根据风向、飞行碎片在其路径上的可用性，将确定玻璃/包层损坏的情况。 这些信息将用于将风速与观察到的损害联系起来，确定可能的损害原因，并评估建筑法规和标准是否适当。 鉴于许多建筑物的玻璃破碎导致建筑物围护结构破裂，将从结构完整性和功能性的角度对这些建筑物可能进行垂直疏散的潜力进行研究。 最终报告将根据初步分析对收集的信息和观察结果进行分类，以便分发给结构工程和应急管理领域的其他研究人员进行后续研究。 这项研究的结果将为飓风易发地区建筑物玻璃覆层的性能提供重要的投入。这将有助于飓风地区的社区在飓风季节之前评估其建筑物的状况，以便进行可能的改造。 这项研究也将提供一个关键的输入，在美国沿海地区的应急管理小组的飓风威胁，评估高层建筑垂直疏散的可行性。