MRI: Acquisition of a state-of-the art shake table system to enhance teaching and research at California State University, Los Angeles

地震对世界范围内的社会构成了重大危险，因为它可能造成人员伤亡、破坏以及社会和经济中断。振动台使研究人员能够在模拟地震和其他类型的振动下测试土木、机械和电气结构的物理模型。这些测试用于观察、测量和了解潜在的物理现象，并随后为改进的抗震工程开发改进的设计方法和计算机模型。这一重大研究仪器(MRI)奖支持获得双向振动台，能够在超过重力加速度两倍的加速度下测试重达1吨的样品。收购这台仪器将显著增强加州州立大学洛杉矶分校(CSULA)工程学教师的能力，使他们能够弥合分析结果和实验验证之间的差距。该仪器将用于研究民用结构和基础设施的抗震性能。该工具还将允许教师改进对美国种族和文化最多元化的大学之一的学生的培训计划。摇台将被整合到三个班级和独立的学习项目中，并将用于中学生的暑期外展计划。振动台将使CSULA的研究人员能够在模拟地震下测试各种工程结构。结构工程的研究人员将使用该仪器来研究节能木结构剪力墙的抗震性能。有必要减少建筑部门的能源消耗。如果这些隔热效果好于传统墙体的墙体具有足够的抗震能力，它们就有可能显著提高能量。结构工程领域的研究人员还将调查独立光伏电池板的行为。附着式光伏电池板在实施过程中存在建筑上的困难；了解独立光伏电池板的抗震性能将有助于它们在地震区的使用。岩土工程研究人员将开发一个测试结果数据库，用于各种土桩和土壤管道系统的布置。他们将使用这个数据库来评估数值模拟技术的充分性。这一认识将有助于提高我们关键基础设施的地震安全性。材料科学和结构工程的研究人员将研究基于生物和碳纳米管的纤维增强聚合物(FRPS)在民用建筑中的潜在应用。除此之外，该仪器将促进CSULA教师与他们在学术界和工业界的合作伙伴之间的科学合作。该仪器将成为加州大学洛杉矶分校工程、计算机科学和技术学院的关键研究基础设施。

Earthquakes pose a major danger to society worldwide due to the potential casualties, damage, and social and economic disruption. Shake tables allow researchers to test physical models of civil, mechanical, and electrical structures under simulated earthquakes and other types of vibration. These tests are used to observe, measure, and understand the underlying physical phenomena, and subsequently develop improved design approaches and computer models for improved earthquake-resistant engineering. This Major Research Instrumentation (MRI) award supports the acquisition of a bidirectional shake table capable of testing specimens weighing up to 1 ton at accelerations in excess of twice the acceleration of gravity. Acquisition of this instrument will significantly enhance the capabilities of engineering faculty at California State University, Los Angeles (CSULA), allowing them to bridge the gap between analytical results and experimental verification. The instrument will be used for research on the seismic performance of civil structures and infrastructure. The instrument will also allow faculty to improve training programs for students at one of the nation's most ethnically and culturally diverse universities. The shake table will be integrated into three classes and independent study projects and will be used for summer outreach programs for secondary students. The shake table will enable researchers at CSULA to test a wide variety of engineered structures under simulated earthquakes. Researchers in structural engineering will use the instrument to investigate the seismic performance of energy efficient wood-framed shear walls. There is a need to reduce the energy use in the building sector. If these walls, which insulate better than traditional walls, have adequate seismic resistance, they have the potential for significant improvement in energy. Researchers in structural engineering will also investigate the behavior of unattached photovoltaic panels. Attached photovoltaic panels present architectural difficulties in their implementation; understanding the seismic behavior of unattached panels will facilitate their use in seismic regions. Researchers in geotechnical engineering will develop a database of test results for various arrangements of soil-pile and soil-pipeline systems. They will use this database to assess the adequacy of numerical modeling techniques. This understanding will help improve the earthquake safety of our critical infrastructure. Researchers in material science and structural engineering will investigate civil applications of bio- and carbon-nanotube-based fiber reinforced polymers (FRPs) for potential use for civil structures. Beyond this, the instrument will facilitate scientific collaborations between faculty at CSULA and their partners in academia and industry. The instrument will become a key piece of research infrastructure for the College of Engineering, Computer Science, and Technology at CSULA.