NEESR-SG: Controlled Rocking of Steel-Framed Buildings with Replaceable Energy Dissipating Fuses

NEESR-SG：使用可更换耗能保险丝控制钢框架建筑的摇摆

• 批准号: 0530756
• 负责人: Gregory Deierlein
• 金额: --
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0530756&HistoricalAwards=false
• 关键词: NEESR; SG; Controlled; Rocking; Steel

Proposal: CMS-0530756PI: Deierlein, GregoryInstitution: Stanford UniversityTitle: NEESR SG: Controlled Rocking of Steel-Framed Buildings with Replaceable Energy Dissipating Fuses Abstract Research and experience from past earthquakes suggest the need for buildings that are less vulnerable to damage and easier to repair after a major earthquake. Of particular concern are certain conventional systems, such as concentrically braced steel frame buildings, which are quite prevalent and whose design may rely on more inelastic energy dissipation than the systems can provide. The proposed research aims to develop a new structural system that employs rocking action and replaceable structural fuses to provide safe and cost effective resistance to earthquakes. The system combines desirable aspects of conventional steel-braced framing with two alternative and complementary fuse concepts - shear panel fuses and axial column fuses. The fuses utilize novel materials and components, including combinations of high-performance fiber reinforced cementitious composite shear panels fuses, low-yield steel shear panel fuses, and buckling-restrained axial column fuses. Guided by performance-based capacity design principles, the fuses are easily replaceable and can be tuned to provide optimal performance. Through a combined program of computational and experimental research, the project will encompass component and complete system response and synthesis of the results through a methodology for performance-based design that directly assesses life safety and life-cycle economic factors. The proposed concept emphasizes damage prevention to foundations and other structural elements that are difficult to repair; inelastic energy dissipation in structural fuses that are easy to replace; story drift control so that nonstructural damage is reduced; and sufficient safety against collapse. The research will involve quasi-static testing of a large-scale frame subassembly at the NEES facility at the University of Illinois at Urbana-Champaign and dynamic testing of a large-scale frame at the E-Defense shake table in Miki City, Japan. Outreach activities will focus on a project web site, web-based telepresence, and participation of undergraduate and graduate researchers.

提案：CMS-0530756 PI： Deierlein，GregoryInstitution：斯坦福大学NEESR SG：具有可更换的能量耗散保险丝的钢框架建筑物的受控摇摆摘要研究和过去地震的经验表明，需要在大地震后不易受损且易于修复的建筑物。 特别令人关注的是某些传统系统，如同心支撑钢框架建筑物，这是非常普遍的，其设计可能依赖于比系统可以提供更多的非弹性能量耗散。 拟议的研究旨在开发一种新的结构系统，采用摇摆作用和可更换的结构保险丝，以提供安全和成本效益的抗震能力。 该系统结合了传统钢支撑框架的理想方面，两个替代和互补的保险丝概念-剪切板保险丝和轴向柱保险丝。 保险丝采用新型材料和部件，包括高性能纤维增强水泥基复合材料抗剪板保险丝、低屈服钢抗剪板保险丝和屈曲约束轴向柱保险丝的组合。 在基于性能的容量设计原则的指导下，保险丝易于更换，并可进行调整以提供最佳性能。 通过计算和实验研究的组合方案，该项目将包括组件和完整的系统响应，并通过基于性能的设计方法，直接评估生命安全和生命周期经济因素的结果合成。 所提出的概念强调损坏预防基础和其他结构元件，难以修复;非弹性能量耗散的结构保险丝，易于更换;层间位移控制，以减少非结构性损坏;和足够的安全性，防止倒塌。 该研究将涉及在伊利诺伊大学厄巴纳-香槟分校的NEES设施中对大型框架子组件进行准静态测试，以及在日本三木市的E-Defense振动台上对大型框架进行动态测试。 外联活动将侧重于一个项目网站、基于网络的远程呈现以及本科生和研究生研究人员的参与。