Collaborative Research: Structural Integrity of Steel Gravity Framing Systems

该奖项的研究目标是提供关键的实验数据和评估工具，这些数据和评估工具对于评估普通钢质重力载荷抵抗系统的完整性至关重要。将使用系统测试和组件测试的组合来评估这些系统的行为，就像今天设计的那样。这些实验结果将被用来改进大变形下此类系统的分析模型，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，然后并入系统测试。在构件层面，钢节点将在旋转和拉伸组合荷载下进行测试，并将测试桥面板体系的重要细节，如搭接拼接、梁锚固和金属桥面上板在垂直方向上的拉伸性能。系统测试将包括使用当前实践细节和本研究开发的新概念对重力式框架系统进行大规模下推测试。本研究的结果将通过评估无处不在的结构组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性。它还将开发变革性的解决方案，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，将促进迅速传播和迅速实施。研究生将通过这项研究直接接受培训，以应对与意外结构载荷相关的挑战。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)建立合作伙伴关系，将提高人们对工程学的兴趣和多样性。这些计划将提供本科(SURF和SROP)和高中(MESA)研究实习机会。

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.