Collaborative Research: Structural Integrity of Steel Gravity Framing Systems

合作研究：钢重力框架系统的结构完整性

• 批准号: 1000077
• 负责人: Larry Fahnestock
• 金额: $ 17.5万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1000077&HistoricalAwards=false
• 关键词: Collaborative; Research; Structural; Integrity; Steel

The research objective of this award is provide critical experimental data and assessment tools essential for evaluating the integrity of common steel gravity load resisting systems. A combination of system testing and component testing will be used to assess the behavior of these systems as designed today. These experimental results will then be used to advance models for the analysis of such systems under large deformations and to identify critical details that have a major impact on system performance. Cost-effective details that transform performance will be developed and tested at the component level and then incorporated in system tests. At the component level, steel connections will be tested under combined rotation and tension loading, and important details of the slab on deck system, such as lap splices, beam anchorage, and the tensile behavior of the slabs on metal decks in orthogonal directions will be tested. System tests will involve large-scale push-down tests of gravity frame systems using current practice details and new concepts developed in this research.The results of this research will directly impact the safety of almost all steel buildings by assessing the integrity of ubiquitous structural components and developing models for engineers to employ. It will also develop transformative solutions for improving the robustness of common gravity frame components and systems. Through close collaboration with the American Institute of Steel Construction, expedient dissemination and rapid implementation will be facilitated. Graduate students will be directly trained through this research as they address the challenges associated with unanticipated structural loadings. Interest and diversity in engineering will be enhanced through partnerships with the Summer Undergraduate Research Fellowship (SURF) program at Purdue, the Summer Research Opportunity Program (SROP) at Illinois and the Seattle Mathematics Engineering Science and Achievement Program (Seattle MESA) at Washington. These programs will provide for undergraduate (SURF and SROP) and high school (MESA) research internships.

该奖项的研究目标是提供关键的实验数据和评估工具，以评估常见钢重力载荷抵抗系统的完整性。 将使用系统测试和组件测试的组合来评估当今设计的这些系统的行为。 这些实验结果将用于改进模型，以分析大变形下的此类系统，并确定对系统性能有重大影响的关键细节。 转变性能的具有成本效益的细节将在组件级别进行开发和测试，然后纳入系统测试。在构件层面，钢连接将在旋转和拉伸联合载荷下进行测试，甲板系统上板的重要细节，如搭接接头、梁锚固以及金属甲板上板在正交方向上的拉伸行为将被测试。已测试。系统测试将涉及使用当前实践细节和本研究中开发的新概念对重力框架系统进行大规模下推测试。本研究的结果将通过评估普遍存在的结构部件的完整性，直接影响几乎所有钢结构建筑的安全性并开发模型供工程师使用。 它还将开发变革性解决方案，以提高常见重力框架组件和系统的稳健性。 通过与美国钢结构协会的密切合作，将有助于便利传播和快速实施。 研究生将通过这项研究直接接受培训，解决与意外结构载荷相关的挑战。通过与普渡大学夏季本科生研究奖学金（SURF）计划、伊利诺伊州夏季研究机会计划（SROP）和华盛顿西雅图数学工程科学与成就计划（西雅图 MESA）的合作，将增强对工程的兴趣和多样性。这些项目将为本科生（SURF 和 SROP）和高中（MESA）研究实习提供机会。