MRI: Acquisition of Structural Testing System to Simulate Earthquake Loading

这一重大研究仪器(MRI)奖支持在加州保利的现有测试设施中增加两个液压执行器，以测试受地震等自然灾害影响的各种结构系统。许多工作都有很大的潜力直接影响法规和标准--从而提高公共安全。该仪器将支持四个系的基础研究，并将吸引本科生和研究生参与研究活动。该仪器还将用于与建筑暑期职业研讨会、大学工程可能性和设计村相结合的K-12外展活动。该仪器将通过对具有叠加恒载的结构系统进行平面内循环横向测试，使基础研究能够增强建筑环境的安全性。研究活动的范围从钢筋混凝土剪力墙的大规模试验，到温度激活的自我调节幕墙和砖石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空白，例如80年代以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-柔性隔板建筑的刚度，以及新的交叉层合木材摇摆剪力墙系统的设计。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

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.