NEESR-SG: TIPS - Tools to Facilitate Widespread Use of Isolation and Protective Systems, a NEES/E-Defense Collaboration

NEESR-SG：TIPS - 促进隔离和防护系统广泛使用的工具，NEES/E-Defense 合作

• 批准号: 1113275
• 负责人: Keri Ryan
• 金额: $ 74.51万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-01-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1113275&HistoricalAwards=false
• 关键词: NEESR; SG; TIPS; Tools; Facilitate

This award is an outcome of the NSF 07-506 program solicitation George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research (NEESR) competition and includes the University of Nevada, Reno as the lead institution with subawards to the University of California, Berkeley; University of Wisconsin, Green Bay; and the University at Buffalo, SUNY. Recent earthquakes have shown that even moderate ground shaking can produce large economic losses and major societal disruptions due to the widespread structural, nonstructural, and contents damage in code compliant buildings. Seismic isolation, in conjunction with energy dissipation, offers a simple and direct opportunity to control or even eliminate damage by simultaneously reducing deformations and accelerations. The United States once led the development and application of seismic isolation, but now this technology is more widely used in other countries. This project conducts a strategic assessment of the economic, technical, and procedural barriers to the widespread adoption of seismic isolation in the United States. NEES resources will be used for experimental and numerical simulation, data mining, networking and collaboration to understand the complex interrelationship among the factors controlling the overall performance of an isolated structural system. Innovative conceptual solutions will be developed for reducing construction costs (e.g., more effective placement of isolators and improved architectural detailing) and improving performance of isolation systems (e.g., use of new isolation devices). Coordinated experiments and computations will address behavioral uncertainties related to isolation devices, such as thermal heating, buckling and tensile capacity, geometric scaling, and strain rate effects. This project will involve shaking table and hybrid tests at the NEES experimental facilities at the University of California, Berkeley, and the University at Buffalo, aimed at understanding ultimate performance limits to examine the propagation of local isolation failures (e.g., bumping against stops, bearing failures, uplift) to the system level response. These tests, including a full-scale, three-dimensional test of an isolated 5-story steel building on the E-Defense shake table in Miki, Hyogo, Japan, will help fill critical knowledge gaps, validate assumptions regarding behavior and modeling, and provide essential proof-of-concept evidence regarding the importance of isolation technology. This integrated, holistic approach to cost-effectively and reliably limit the adverse impacts of earthquakes is also supportive of emerging trends in construction towards sustainable design. This knowledge will be integrated into a rational performance-based procedure that allows consistent comparison of the performance of alternative isolation and conventional systems in terms of safety, loss of use, and life cycle costs.The new knowledge, tools, and performance-based design framework will facilitate the effective application of seismic isolation technology, leading to substantial reductions in the losses and disruptive societal impacts associated with future earthquakes. Through a needs assessment survey and workshop series, decision makers, professional engineers, researchers from throughout the United States and Japan, and representatives from industry and regulatory bodies will share strategies, resources and technology, and synergistically foster application. Existing resources will be leveraged for activities to educate a national audience, ranging from K-12 to practitioners, about seismic isolation technology. The project will involve undergraduate students through the NEES REU and LSAMP programs, on-site experiments, and other research activities. Following the experiments, all data will be made available through the NEES data repository (http://www.nees.org).

该奖项是NSF 07-506计划招标George E. Brown，Jr。地震工程模拟网络（NEES）研究（NEESR）竞赛的结果，其中包括内华达大学里诺大学，作为伯克利分校的Subawards的Reno大学。威斯康星大学绿湾；和纽约州布法罗的大学。 最近的地震表明，即使是中等地面的摇动也可能导致巨大的经济损失和严重的社会破坏，因为符合代码的建筑物中的结构，非结构性和内容损害了广泛的结构，非结构性和内容损失。地震隔离与能量耗散一起，提供了一个简单而直接的机会，可以通过同时减少变形和加速度来控制甚至消除损害。美国曾经领导过地震隔离的开发和应用，但现在这项技术在其他国家 /地区广泛使用。该项目对美国广泛采用地震隔离的经济，技术和程序障碍进行了战略评估。 NEES资源将用于实验和数值模拟，数据挖掘，网络和协作，以了解控制孤立结构系统整体性能的因素之间的复杂相互关系。将开发创新的概念解决方案，以降低构建成本（例如，更有效地放置隔离器和改进的建筑细节）和改善隔离系统的性能（例如，使用新的隔离设备）。协调的实验和计算将解决与隔离设备有关的行为不确定性，例如热加热，屈曲和拉伸能力，几何缩放和应变速率效应。 该项目将涉及加利福尼亚大学伯克利分校和布法罗大学NEES实验设施的摇桌和混合测试，旨在理解最终的性能限制，以检查局部隔离故障的传播（例如，撞击，抵抗停止，承受失败，提高系统水平响应）。 这些测试，包括对日本米基（Miki）的e卫生摇桌上孤立的5层钢建筑的全尺度，三维测试，将有助于填补关键知识差距，验证有关行为和建模的假设，并提供有关隔离技术重要性的概念概念证据。这种综合的，整体的方法，用于成本效益，可靠地限制地震的不利影响也支持了建筑在可持续设计方面的新兴趋势。 这些知识将集成到一个基于合理的绩效的过程中，从而使替代性隔离和传统系统的性能在安全性，使用量和生命周期成本方面进行持续比较。新知识，工具和基于绩效的设计框架将有效地应用地震隔离技术，从而导致损失和破坏性社会影响与未来的地球造成的大量降低。通过需求评估调查和研讨会系列，决策者，专业工程师，来自美国和日本的研究人员以及行业和监管机构的代表将共享战略，资源和技术以及协同促进应用程序。现有资源将被利用用于教育全国受众的活动，从K-12到从业者，了解地震隔离技术。该项目将通过NEES REU和LSAMP计划，现场实验以及其他研究活动参与本科生。在实验之后，将通过NEES数据存储库（http://www.nees.org）提供所有数据。