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

MRI：购买最先进的振动台系统以加强加州州立大学洛杉矶分校的教学和研究

• 批准号: 1531582
• 负责人: Tonatiuh Rodriguez-Nikl
• 金额: $ 27.87万
• 依托单位: California State L A University Auxiliary Services Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1531582&HistoricalAwards=false
• 关键词: MRI; Acquisition; state; art; shake

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.

由于潜在的人员伤亡、破坏以及社会和经济破坏，地震对全世界社会构成重大危险。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、测量和理解潜在的物理现象，并随后开发改进的设计方法和计算机模型，以改进抗震工程。这项重大研究仪器 (MRI) 奖项支持购买双向振动台，该振动台能够以超过重力加速度两倍的加速度测试重达 1 吨的样本。购买该仪器将显着增强加州州立大学洛杉矶分校 (CSULA) 工程教师的能力，使他们能够弥合分析结果和实验验证之间的差距。该仪器将用于土木结构和基础设施的抗震性能研究。该工具还将使教师能够改善美国最具种族和文化多样性的大学之一的学生培训计划。该摇桌将被整合到三个班级和独立学习项目中，并将用于中学生的暑期外展项目。该振动台将使 CSULA 的研究人员能够在模拟地震下测试各种工程结构。结构工程研究人员将使用该仪器研究节能木框架剪力墙的抗震性能。需要减少建筑领域的能源使用。如果这些比传统墙壁隔热效果更好的墙壁具有足够的抗震能力，那么它们就有可能显着改善能源。结构工程研究人员还将研究独立光伏电池板的行为。附加光伏板在其实施中存在建筑困难；了解独立面板的地震行为将有助于其在地震地区的使用。岩土工程研究人员将为土桩和土管系统的各种布置开发测试结果数据库。他们将使用该数据库来评估数值建模技术的充分性。这种理解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研究人员将研究基于生物和碳纳米管的纤维增强聚合物（FRP）在土木结构中的潜在用途。除此之外，该仪器还将促进 CSULA 教师与其学术界和工业界合作伙伴之间的科学合作。该仪器将成为 CSULA 工程、计算机科学与技术学院研究基础设施的关键部分。