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为评估普通钢抗重力载荷系统的完整性提供关键的实验数据和评估工具。系统测试和组件测试的组合将用于评估这些系统的行为。然后，这些实验结果将用于在大变形下分析此类系统的先进模型，并确定对系统性能有重大影响的关键细节。转换性能的成本效益细节将在组件级别开发和测试，然后纳入系统测试。在构件层面，钢连接将在旋转和拉伸载荷的组合下进行测试，并对甲板上的板系统的重要细节进行测试，例如搭接，梁锚固以及金属甲板上的板在正交方向上的拉伸行为。系统测试将包括重力框架系统的大规模下推测试，使用当前的实践细节和本研究中开发的新概念。本研究的结果将通过评估无处不在的结构部件的完整性和开发供工程师使用的模型，直接影响几乎所有钢结构建筑的安全。它还将开发变革性的解决方案，以提高通用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，将促进适当的传播和迅速的执行。研究生将通过这项研究直接接受培训，因为他们将解决与意外结构负载相关的挑战。通过与普渡大学的夏季本科生研究奖学金（SURF）计划、伊利诺伊州的夏季研究机会计划（SROP）和华盛顿的西雅图数学工程科学与成就计划（Seattle MESA）的合作，工程方面的兴趣和多样性将得到加强。这些项目将为本科生（SURF和SROP）和高中生（MESA）提供研究实习机会。