NEESR-SD: Framework for Development of Hybrid Simulation in an Earthquake Impact Assessment Context

NEESR-SD：地震影响评估背景下的混合模拟开发框架

• 批准号: 0724172
• 负责人: Billie Spencer
• 金额: $ 20万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0724172&HistoricalAwards=false
• 关键词: NEESR; SD; Framework; Development; Hybrid

This award is an outcome of the National Science Foundation 07-506 program solicitation "George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research" competition. The objective of this project is to develop an earthquake impact assessment framework that integrates hybrid simulation with free-field and structure sensor measurements, system identification-based model updating technology, probabilistic fragility analysis, and existing earthquake loss assessment software. Earthquake impact assessment is the basis for post-earthquake emergency response and recovery planning. A pilot implementation of the earthquake impact assessment framework will be conducted using the instrumented Bill E. Emerson Memorial Bridge located in Cape Girardeau, Missouri. Algorithms will be developed or adapted and communication protocols formulated to link sensor measurements directly into the hybrid system. Free field measurements will be used to characterize the hazard at the site and define strong motion records, and the structural sensors used to tune the bridge-foundation-soil model. Hybrid simulations will be undertaken using the model and input motion, while changing the design of one or more (up to three) of the supporting piers. The response of the bridge, with variation of the ground motion and pier response, will be used to derive fragility relationships which, with the hazard, will be used to estimate earthquake impact. In this manner, the relatively mature subdisciplines responsible for developing the above components will be tested in an integrated manner to assess and mitigate earthquake losses. This project will utilize the one-fifth scale loading and boundary condition boxes at the NEES equipment site at the University of Illinois at Urbana-Champaign, and leverage significant resources through other projects funded by the Missouri Department of Transportation, Federal Emergency Management Agency, Federal Highway Administration, and Mid-America Earthquake Center headquartered at the University of Illinois at Urbana-Champaign.This project will provide a stimulus to seismologists, geotechnical and structural earthquake engineers, and structural control and impact assessment experts to improve current algorithms to produce more reliable assessment of losses that underpin seismic mitigation, response, and recovery planning. The source code for the framework and the graphical user interface will be archived in NEESforge (the NEES software repository available at http://www.nees.org) and will include an example application to the Cape Girardeau Bridge. In addition, data from this project will be made publicly available through the NEES data repository (http://www.nees.org).

该奖项是国家科学基金会07-506计划招标的结果“乔治·布朗，小地震工程模拟网络（NEES）研究”竞赛。 该项目的目的是开发地震影响评估框架，该框架将混合模拟与自由场和结构传感器测量，基于系统识别模型更新技术，概率脆弱性分析以及现有地震损失评估软件的模型。 地震影响评估是地震后紧急响应和恢复计划的基础。 地震影响评估框架的试点实施将使用位于密苏里州角吉拉多角的仪器E. Emerson纪念桥进行。将开发或调整算法，并配制了将传感器测量直接链接到混合系统中的通信协议。免费场测量将用于表征位点上的危害并定义强运动记录，以及用于调整桥梁基本土壤模型的结构传感器。将使用模型和输入运动进行混合模拟，同时更改一个或多个支撑码头的设计（最多三个）。随着地面运动和码头响应的变化，桥的响应将用于得出脆弱的关系，该关系将与危险一起估计地震影响。以这种方式，将以综合方式测试负责开发上述组件的相对成熟的子学科，以评估和减轻地震损失。 该项目将利用伊利诺伊大学厄巴纳 - 坎佩恩（Urbana-Champaign）的NEES设备网站上的五个尺度加载和边界状况盒，并通过密苏里州交通运输部，联邦紧急事务管理局，联邦高速公路管理局，联邦高速公路管理局和中美洲中部地震中心的刺激性的刺激性启发下的其他项目来利用大量资源，并提供大量资源。岩土技术和结构地震工程师以及结构控制和影响评估专家，以改善当前算法，以产生对基础地震缓解，反应和恢复计划的损失的更可靠评估。 该框架和图形用户界面的源代码将在Neesforge（http://www.nees.org）中存档（NEES软件存储库），并将在Girardeau Bridge Cape Girardeau Bridge中包含一个示例应用程序。 此外，该项目的数据将通过NEES数据存储库（http://www.nees.org）公开提供。