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; 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.

由于潜在的伤亡，损害以及社会和经济破坏，地震对全球社会构成了重大危险。摇桌使研究人员可以在模拟地震和其他类型的振动下测试民用，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，并随后开发了改进的设计方法和计算机模型，以改善地震抗震工程。这项主要的研究仪器奖（MRI）奖支持获得双向震动表，能够测试重达1吨的标本，其加速度的加速度是重力加速度的两倍。该工具的获取将大大提高洛杉矶加利福尼亚州立大学（CSULA）的工程学院的能力，从而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地震性能。该工具还将允许教师改善该国最具种族和文化多样化大学之一的学生的培训计划。 Shake Table将融入三个课程和独立的研究项目中，并将用于中学学生的夏季外展计划。摇桌将使Csula的研究人员能够测试模拟地震下的各种工程结构。结构工程研究人员将使用该仪器研究能源有效的木框剪力墙的地震性能。有必要减少建筑部门的能源利用。如果这些比传统墙更好的隔离墙具有足够的地震抗性，它们具有显着改善能量的潜力。结构工程研究人员还将研究未附加光伏面板的行为。附着的光伏面板在实施中带来了建筑困难；了解无附加面板的地震行为将有助于其在地震区域的使用。岩土工程研究人员将为土壤和土壤层系统的各种布置开发一个测试结果数据库。他们将使用此数据库评估数值建模技术的充分性。这种理解将有助于改善我们关键基础设施的地震安全。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）的民用应用，以便用于民用结构。除此之外，该工具还将促进Csula教职员工与其学术界和工业伙伴之间的科学合作。该仪器将成为Csula工程，计算机科学和技术学院的重要研究基础设施。