RAPID/Collaborative Research: Japan-U.S. Collaboration on the Seismic Resilience of Wood-frame Building Systems

快速/合作研究：日美合作研究木框架建筑系统的抗震能力

• 批准号: 1829433
• 负责人: Maria Koliou
• 金额: $ 18.7万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-05-15 至 2020-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1829433&HistoricalAwards=false
• 关键词: RAPID; Collaborative; Research; Japan; U.S.

Light-frame wood single- and multi- family dwellings represent the majority of the residential building stock in the United States and form an important underpinning infrastructure for national welfare. Although significant progress has been made during the past decade to better understand the seismic response of wood-frame building systems and identify sustainable seismic retrofit methods, most studies have focused only on the structural system and nonstructural component response. Building interactions with lifeline components (e.g., utility piping systems) and soil-structure interaction during seismic events have not been widely investigated either analytically or experimentally. This Grant for Rapid Response Research (RAPID) will support a team of researchers from U.S. universities to collaborate with researchers from Japanese universities on experimental seismic studies of wood-frame building systems that will be conducted at the world's largest shake table (E-Defense) in Miki, Japan in early 2019. The goal of this RAPID project is to collect time-sensitive data and plan payload tests for the experimental studies at the E-Defense shake table on two full-scale, three-story wood-frame buildings as a sub-project of the "Tokyo Metropolitan Resilience Project" supported in Japan by the Ministry of Education, Culture, Sports, Science and Technology and the National Research Institute for Earth Science and Disaster Resilience (NIED). The outcomes of this research will include a database, recorded using the advanced technologies of the NSF-supported Natural Hazards Engineering Research Infrastructure (NHERI) Natural Hazards Reconnaissance Facility equipment (https://rapid.designsafe-ci.org/), on the seismic performance of typical wood-frame building systems, the efficiency of sustainable seismic retrofit methods, and the complex soil-structural-nonstructural-lifeline interactions. The data from these experimental tests can be used to advance computational models for the prediction of building performance, repair times, and post-event functionality rates. The results of this research will also enable decision-makers to better understand the nature of interdependency between the multiple attributes of a residential unit and the efficiency of the various seismic retrofit techniques and will assist in planning and investments to reduce seismic vulnerability. The collected data will be archived and made publicly available in the NSF-supported NHERI Data Depot (https://www.designsafe-ci.org/). This project will train a graduate student and promote international collaboration between Japanese and U.S. colleagues working together on enhancing the resilience of wood-frame building systems in urban environments through the established partnership of the NSF-supported NHERI with Japan's NIED. The findings of this project will be disseminated through a public webinar as well as podcasts on the NHERI web site (https://www.designsafe-ci.org).In this RAPID project, the collaborative Japanese and U.S. research team will investigate the seismic resilience of wood-frame building systems tested at the E-Defense shake table as well as testing various seismic retrofit/repair solutions for enhancing urban community resilience. The design of wood-frame residential construction in Japan is considerably comparable to U.S. residential design. The objectives of this project are twofold: (1) collect damage and repair/restoration data during the E-Defense tests for different levels of seismic intensity until complete structural collapse, accounting for the interaction of structural and nonstructural components, soil-structure interaction, and lifeline utility performance (both for conventional designs as well as for solutions with seismic retrofits), and (2) identify opportunities for payload projects such as retrofits, various utility systems, and nonstructural components. The collected data will be used to establish a holistic performance of housing recovery based on the assessment of the complex interaction among seismic hazard characteristics, human decision-making processes, building and retrofit attributes, and economic factors.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

轻型木结构单户和多户住宅占美国住宅建筑存量的大部分，是国家福利的重要基础设施。尽管在过去十年中，在更好地理解木结构建筑体系的地震反应和确定可持续的抗震改造方法方面取得了重大进展，但大多数研究只关注结构体系和非结构构件的反应。建筑物与生命线组件（例如，公用管道系统）的相互作用以及地震事件中土壤-结构的相互作用尚未得到广泛的分析或实验研究。这项快速反应研究拨款（Rapid）将支持来自美国大学的研究人员团队与日本大学的研究人员合作，对木结构建筑系统进行实验地震研究，该研究将于2019年初在日本三木市的世界上最大的震动台（E-Defense）进行。RAPID项目的目标是收集时间敏感数据并计划有效载荷测试，以便在两个全尺寸三层木结构建筑的E-Defense振动台上进行实验研究，这是日本教育、文化、体育、科学和技术省以及国家地球科学和抗灾能力研究所支持的“东京都抗灾能力项目”的子项目。这项研究的结果将包括一个数据库，使用nsf支持的自然灾害工程研究基础设施（NHERI）自然灾害侦察设施设备（https://rapid.designsafe-ci.org/）的先进技术记录，关于典型木结构建筑系统的抗震性能，可持续抗震改造方法的效率，以及复杂的土壤-结构-非结构-生命线相互作用。来自这些实验测试的数据可用于改进计算模型，以预测建筑性能、维修时间和事后功能率。这项研究的结果还将使决策者能够更好地理解住宅单元的多种属性与各种抗震改造技术的效率之间相互依赖的本质，并将有助于规划和投资，以减少地震脆弱性。收集到的数据将被存档，并在nsf支持的NHERI数据仓库（https://www.designsafe-ci.org/）中公开提供。该项目将培养一名研究生，并促进日本和美国同事之间的国际合作，通过nsf支持的NHERI与日本NIED建立的伙伴关系，共同提高城市环境中木结构建筑系统的弹性。该项目的研究结果将通过公共网络研讨会以及NHERI网站上的播客（https://www.designsafe-ci.org）.In)进行传播。在这个RAPID项目中，日本和美国的合作研究小组将调查在E-Defense振动台测试的木结构建筑系统的抗震能力，并测试各种抗震改造/修复解决方案，以提高城市社区的抗灾能力。日本的木结构住宅建筑设计与美国的住宅设计相当。这个项目有两个目标：(1)在E-Defense测试期间收集不同地震强度水平的损坏和修复/恢复数据，直到结构完全倒塌，考虑到结构和非结构部件的相互作用、土壤-结构相互作用和生命线效用性能（既适用于传统设计，也适用于抗震改造解决方案）；(2)确定有效载荷项目的机会，如改造、各种公用事业系统和非结构部件。收集到的数据将用于基于地震灾害特征、人类决策过程、建筑和改造属性以及经济因素之间复杂相互作用的评估，建立住房恢复的整体绩效。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。