MRI: Acquisition of Structural Testing System to Simulate Earthquake Loading

MRI：获取结构测试系统来模拟地震荷载

• 批准号: 2019198
• 负责人: Anahid Behrouzi
• 金额: $ 34.04万
• 依托单位: California Polytechnic State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2019198&HistoricalAwards=false
• 关键词: MRI; Acquisition; Structural; Testing; System

This Major Research Instrumentation (MRI) award supports the addition of two hydraulic actuators to an existing testing facility at Cal Poly to enable testing of various structural systems subject to extreme loading from natural hazards such as earthquakes. Much of the work has a high potential to directly impact codes and standards—leading to enhanced public safety. The instrumentation will enable fundamental research in four departments and will engage undergraduate and graduate students in research activities. The instrumentation will also be used for K-12 outreach activities in conjunction with Architecture Summer Career Workshop, Engineering Possibilities in College, and Design Village. The instrumentation will enable fundamental research to enhance the safety of the built environment by enabling cyclic in-plane lateral testing of structural systems with superimposed dead loads. The research activities range from large scale testing of reinforced concrete shear walls, to temperature-activated self-regulating facades and the response of masonry structures to severe natural hazards. The research projects will address fundamental knowledge gaps associated with the extreme loading for structural systems, such as potential fiber-reinforcing retrofits for pre-1980s reinforced concrete walls, the interaction of dynamic structural cladding with the underlying structure, stiffness in rigid wall-flexible diaphragm buildings and the design of new cross-laminated timber rocking shear wall systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项重大研究仪器（MRI）奖项支持在加州理工学院现有的测试设施中增加两个液压致动器，以测试承受地震等自然灾害极端载荷的各种结构系统。大部分工作都有很大的潜力直接影响规范和标准，从而提高公共安全。 该仪器将使四个部门的基础研究，并将从事研究活动的本科生和研究生。 该仪器还将用于K-12外展活动，与建筑夏季职业研讨会，工程学院和设计村。该仪器将使基础研究，以提高建筑环境的安全性，使循环平面内横向测试的结构系统与叠加恒载。 研究活动范围从钢筋混凝土剪力墙的大规模测试，到温度激活的自调节立面和砌体结构对严重自然灾害的反应。这些研究项目将解决与结构系统极端荷载相关的基本知识差距，例如20世纪80年代前钢筋混凝土墙的潜在纤维增强改造，动态结构覆层与底层结构的相互作用，刚性墙-柔性地下连续墙结构的刚度和新的交叉墙结构的设计，该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。