Natural Hazards Engineering Research Infrastructure: Experimental Facility with Large-Scale, Multi-directional, Hybrid Simulation Testing Capabilities 2021-2025

自然灾害工程研究基础设施：具有大规模、多方位、混合模拟测试能力的实验设施2021-2025

• 批准号: 2037771
• 负责人: James Ricles
• 金额: $ 532.92万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-01-01 至 2025-09-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2037771&HistoricalAwards=false
• 关键词: Natural; Hazards; Engineering; Research; Infrastructure

The Natural Hazards Engineering Research Infrastructure (NHERI) is supported by the National Science Foundation (NSF) as a distributed, multi-user national facility to provide the natural hazards engineering research community with access to research infrastructure that includes earthquake and wind engineering experimental facilities, cyberinfrastructure (CI), computational modeling and simulation tools, high performance computing resources, and research data, as well as education and community outreach activities. Originally funded under program solicitations NSF 14-605 and NSF 15-598, NHERI has operated since 2015 through separate, but coordinated, five-year research infrastructure awards for a Network Coordination Office, CI, Computational Modeling and Simulation Center, and Experimental Facilities, including a post-disaster, rapid response research facility. Information about NHERI resources are available at the NHERI web portal (https://www.DesignSafe-ci.org). Awards made for NHERI contribute to NSF's role in the National Earthquake Hazards Reduction Program (NEHRP) and the National Windstorm Impact Reduction Program (NWIRP). NHERI Experimental Facilities will provide access to their experimental resources, user services, and data management infrastructure for NSF-supported research and education awards. This award will renew the NHERI Experimental Facility at Lehigh University from January 1, 2021, to September 30, 2025. Through this award, researchers will have access to the facility's experimental resources to perform accurate, large-scale simulations in multi-directions to study the effects of natural hazards on civil infrastructure, including the effects of soil-foundation-structure interaction under wind and earthquake hazards. The research performed at the facility will promote advances in community natural hazard resilience, as the experimental data and related computational models will be used to validate new structural concepts for design and retrofit that will advance the performance of infrastructure systems during natural hazard events. Data acquired from research conducted at the facility will be valuable in developing a deeper understanding of the key physical responses, vulnerabilities, and factors that influence the resilience of civil infrastructure and communities. The facility will create opportunities to develop a diverse workforce through natural hazards engineering research, educational activities, and professional practice. The education and outreach programs will target a diverse audience at all levels and attract students into science, engineering, and technology, while also reaching out to promote, educate, and inform the engineering community about new discoveries and advancements in performance-based natural hazards engineering. Experimental data generated from the research conducted at this facility will be archived in the Data Depot on the NHERI web portal. The facility will conduct annual workshops for prospective users and will host Research Experiences for Undergraduate students.The experimental resources, which include a multi-directional reaction wall, strong floor, servo-controlled hydraulic actuators, and advanced testing algorithms, will support large-scale, multi-directional testing. This includes real-time hybrid simulation (RTHS), which uses physical models of the least-understood parts of the system in the laboratory, along with computer-based numerical models of the rest of the system, to enable the definition of the “system” to be expanded well beyond the size of typical laboratory physical models. The performance of large-scale components and systems subject to multi-directional demand from natural hazards can be readily assessed through the application of one of more of the testing techniques provided by the facility that includes: (1) hybrid simulation (HS), which combines large-scale physical models with computer-based numerical simulation models; (2) geographically distributed HS (DHS), which is a HS with physical models and/or numerical simulation models located in different laboratories and connected through the Internet; (3) RTHS, which is a HS conducted at the actual time scale of the physical models and events, such as an earthquake, a wind natural hazard, or multi-natural hazards; (4) geographically distributed RTHS (DRTHS), which combines DHS and RTHS; (5) dynamic testing (DT), which uses high speed servo-controlled hydraulic actuators or other methods to load large-scale physical models at real-time scales through predefined force or displacement histories to characterize their dynamic response; and (6) quasi-static testing (QS), which uses hydraulic actuators to load large-scale physical models through predefined force and/or displacement histories to characterize their static response. The high-quality, system-level experimental data acquired at the facility through the use of a broad array of instrumentation and advanced sensors will provide a valuable and unique resource for the natural hazards community to develop and validate high-fidelity computational models, leading to advances in the knowledge and understanding of civil infrastructure response to natural hazards.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.

自然危害工程研究基础设施（NHERI）得到国家科学基金会（NSF）作为分布式的，多用户的国家设施，可为自然危害工程研究社区提供获得地震和风力工程实验设施的研究基础设施的访问，包括Cyber​​infrasture（CIBERTACTION（CI），计算上的模型和仿真工具，以及进行计算和高度计算机，以及高级计算和高级计算，包括网络和风能工程实验设施。 NHERI最初由计划招标资助NSF 14-605和NSF 15-598，自2015年以来从2015年以来通过单独但协调的五年研究基础设施奖励网络协调办公室，CI，计算建模和仿真中心以及实验性设施，包括后置措施，快速响应研究设施。有关NHERI资源的信息，请访问NHERI Web门户网站（https://www.designsafe-ci.org）。 NHERI颁发的奖项促进了NSF在国家地震危害计划（NEHRP）和国家风暴影响减少计划（NWIRP）中的作用。 NHERI实验设施将为NSF支持的研究和教育奖提供访问其实验资源，用户服务和数据管理基础架构。该奖项将于2021年1月1日，至2025年9月30日在利哈伊大学的NHERI实验设施续签。通过该奖项，研究人员将可以在多导线中使用该设施的实验资源来执行准确的大规模模拟，以研究自然危害对民用基础设施的影响，包括土壤危害的影响，包括土壤造成的危险和磨性的影响。在该设施进行的研究将促进社区自然危害弹性的进步，因为实验数据和相关的计算模型将用于验证设计和改造的新结构概念，以提高自然危害事件期间基础设施系统的性能。从该设施进行的研究中获取的数据对于对影响民用基础设施和社区的弹性的关键身体反应，脆弱性以及因素有更深入的了解，这将是有价值的。该设施将通过自然危害工程研究，教育活动和专业实践创造机会来发展不同的劳动力队伍。教育和宣传计划将针对各个层次的不同受众，并吸引学生进入科学，工程和技术，同时还可以促进，教育和向工程社区提供有关基于绩效的自然风险工程的新发现和进步的信息。从该设施进行的研究产生的实验数据将在NHERI Web门户网站的数据库中存档。该设施将为潜在的用户举办年度研讨会，并将为本科生举办研究经验。实验资源包括多个方向反应墙，强大的地板，伺服控制的水解执行器以及高级测试算法，将支持大型，多区域测试。这包括实时混合模拟（RTHS），它使用实验室中系统最不理解部分的物理模型以及系统其余部分的基于计算机的数值模型，以使“系统”的定义远远超出了典型的实验室物理模型的规模。可以通过在设施中提供的更多测试技术之一的应用之一来评估：（1）混合仿真（HS），将大规模的大规模组件和系统的性能符合自然危害的多向需求的性能，该技术将大规模物理模型与基于计算机的数字模拟模型相结合； （2）地理分布的HS（DHS），它是一个HS，其物理模型和/或数值模拟模型位于不同实验室，并通过Internet连接； （3）rths，是在物理模型和事件的实际时间尺度上进行的HS，例如地震，自然风险或多天然危害； （4）结合了DHS和RTHS的地理分布的RTH（DRTH）； （5）动态测试（DT），它使用高速伺服控制的水解执行器或其他方法通过预定义的力或位移历史记录在实时尺度上加载大型物理模型，以表征其动态响应； （6）准静态测试（QS），该测试使用水解执行器通过预定义的力和/或位移历史记录来加载大规模的物理模型，以表征其静态响应。通过使用广泛的仪器和高级传感器获得的高质量，系统水平的实验数据将为自然危害社区提供和验证高基础计算模型提供宝贵而独特的资源和更广泛的影响审查标准。

项目成果

Nonlinear static analysis of extreme structural behavior: Overcoming convergence issues via an unconditionally stable explicit dynamic approach

• DOI: 10.1016/j.istruc.2023.01.086
• 发表时间: 2023-03
• 期刊: Structures
• 影响因子: 4.1
• 作者: Si-Cong Xie;C. Kolay;D. Feng;J. Ricles

Experimental Cyclic Test of Reduced Damage Detailed Drywall Partition Walls Integrated with a Timber Rocking Wall

与木摇墙集成的减少损坏的详细干墙隔墙的实验循环测试

• DOI: 10.1080/13632469.2020.1859005
• 发表时间: 2021
• 期刊: Journal of Earthquake Engineering
• 影响因子: 2.6
• 作者: Hasani, Hamed;Ryan, Keri L.
• 通讯作者: Ryan, Keri L.

Modeling uncertainty of specimens employing spines and force‐limiting connections tested at E‐defense shake table

• DOI: 10.1002/eqe.3976
• 发表时间: 2023-07
• 期刊: Earthquake Engineering & Structural Dynamics
• 影响因子: 4.5
• 作者: B. Astudillo;David Rivera;Jessica Duke;B. Simpson;L. Fahnestock;R. Sause;J. Ricles;M. Kurata;T. Okazaki;Y. Kawamata;Zhuoqi Tao;Yi Qie

Towards seismic performance quantification of viscous damped steel structure: Site-specific hazard analysis and response prediction

粘性阻尼钢结构抗震性能量化：特定场地危害分析和响应预测

• DOI: 10.1016/j.engstruct.2023.115677
• 发表时间: 2023
• 期刊: Engineering Structures
• 影响因子: 5.5
• 作者: Dong, Baiping;Ricles, James M.
• 通讯作者: Ricles, James M.

Editorial: Natural Hazards Engineering Research Infrastructure (NHERI): Mitigating the Impact of Natural Hazards on Civil Infrastructure and Communities

社论：自然灾害工程研究基础设施 (NHERI)：减轻自然灾害对民用基础设施和社区的影响

• DOI: 10.3389/fbuil.2021.708450
• 发表时间: 2021
• 期刊: Frontiers in Built Environment
• 影响因子: 3
• 作者: Chowdhury, Arindam;Conte, Joel;Masters, Forrest;Ramirez, Julio;Ricles, James
• 通讯作者: Ricles, James