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，用于评估普通钢抗重力荷载系统的完整性。 系统测试和组件测试的组合将用于评估这些系统的行为，如今天设计的。 然后，这些实验结果将被用来推进模型的分析，这种系统在大变形，并确定关键的细节，对系统性能有重大影响。 将在组件一级开发和测试转换性能的具有成本效益的细节，然后将其纳入系统测试。在构件层面，钢连接将在旋转和拉伸荷载的组合下进行测试，并测试桥面板系统的重要细节，如搭接接头、梁锚固以及金属桥面板在正交方向上的拉伸性能。系统测试将包括使用当前实践细节和本研究中开发的新概念对重力框架系统进行大规模下推测试。通过评估普遍存在的结构部件的完整性和开发供工程师使用的模型，本研究的结果将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鲁棒性。 通过与美国钢结构研究所的密切合作，将促进迅速传播和迅速执行。 研究生将通过这项研究直接接受培训，因为他们解决了与意外结构载荷相关的挑战。在工程的兴趣和多样性将通过在普渡大学，夏季研究机会计划（SROP）在伊利诺伊州和西雅图数学工程科学和成就计划（西雅图梅萨）在华盛顿夏季本科研究奖学金（SURF）计划的伙伴关系得到加强。这些计划将提供本科（SURF和SROP）和高中（梅萨）的研究实习。

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.