Real-time Multi-directional Testing Facility for Seismic Performance Simulation of Large-Scale Structural Systems

大型结构系统抗震性能模拟实时多向测试装置

• 批准号: 0217393
• 负责人: James Ricles
• 金额: $ 259.33万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0217393&HistoricalAwards=false
• 关键词: Real; time; Multi; directional; Testing

AbstractRicles0217393The George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program is a project funded under the NSF Major Research Equipment and Facilities Construction appropriation. This cooperative agreement, under NEES, establishes a NEES large-scale laboratory equipment site towards real-time hybrid seismic testing at Lehigh University. Lehigh University will design, construct, install, commission, and operate a real-time multi-directional testing facility for seismic performance simulation of large-scale structural systems. The equipment provides the capabilities of integrated experimental and analytical research, and will lead to advances in experimental methods. This equipment will be operational by September 30, 2004, and will be managed as a national shared-use NEES equipment site, with teleobservation and teleoperation capabilities, to provide new earthquake engineering research testing capabilities for large structural systems through 2014. This NEES equipment site will be connected to the NEES network through the Mid-Atlantic GigaPop Internet 2 (MAGPI) connection, with 155 Mb/sec Ethernet capabilities that can be scaled to 1 Gb/sec Ethernet capabilities when necessary. Shared-use access and training will be coordinated through the NEES Consortium. This award is an outcome of the peer review of proposals submitted to program solicitation NSF 01-164, "NEES Earthquake Engineering Research Equipment, Phase 2." The equipment will be installed at the ATLSS Engineering Research Center located at Lehigh University, and will make use of the existing strong floor (372 m2 in surface area), existing multi-directional reaction wall (15.2 m tall at one end that, over a distance of 32 m, steps down incrementally from 12.2 m to 9.1 m to 6.1 m), an existing mechanical testing laboratory, existing hydraulic systems, and existing static actuators. The following equipment is provided under this award: (1) two 2050 kN dynamic actuators ported for three 400 gpm servovalves, +/- 500 mm stroke, (2) three 1500 kN dynamic actuators ported for three 400 gpm servovalves, +/- 500 mm stroke, (3) ten 400 gpm high flow-rate servo-valves, (4) hydraulic distribution lines and service manifolds, (5) surge tank and accumulators that will enable strong ground motion effects to be sustained for over 30 seconds, (6) hydraulic system modifications, (7) digital 8-channel control system with real-time hybrid control packages, (8) digital video teleobservation system including a system of digital high quality video cameras, network video cameras, digital video server, data server, restricted access web server, and a public access web server, (9) high speed 256-channel data acquisition system, and (10) advanced sensors that include wireless MEMS-based accelerometers, piezoelectric transducers (strain and acceleration measurement), and fiber optic strain gages. The experimental facility allows for multi-directional real-time seismic testing, combined with real-time analytical simulations, to investigate the seismic behavior of large-scale structural components, structural subassemblages, and superassemblages (systems) through the combined use of the dynamic actuators, reaction wall, and strong floor. The experimental facility is also designed to support the development of new hybrid testing methods for multi-directional real-time testing of large-scale structures, including hybrid testing of multi-substructures, where the substructures involved in such testing are at different geographic locations connected by the NEES network. Lehigh University will integrate this large-scale real-time multi-directional testing facility into its research program and undergraduate and graduate curricula, provide training opportunities for outside researchers through on-site courses and web-based materials, and host visiting scholars.

Apptractricles0217393 The George E. Brown，Jr。地震工程模拟网络（NEES）计划是一项根据NSF主要研究设备和设施建筑拨款资助的项目。根据NEES，这项合作协议建立了NEE大型实验室设备站点，以实时在Lehigh University进行实时混合地震测试。 Lehigh University将设计，构建，安装，佣金和运营一个实时的多向测试设施，用于大规模结构系统的地震性能模拟。该设备提供了综合实验和分析研究的功能，并将导致实验方法的进步。 This equipment will be operational by September 30, 2004, and will be managed as a national shared-use NEES equipment site, with teleobservation and teleoperation capabilities, to provide new earthquake engineering research testing capabilities for large structural systems through 2014. This NEES equipment site will be connected to the NEES network through the Mid-Atlantic GigaPop Internet 2 (MAGPI) connection, with 155 Mb/sec Ethernet capabilities that can be scaled to 1必要时GB/SEC以太网功能。共享使用访问和培训将通过NEES联盟进行协调。该奖项是对计划征集NSF 01-164的提案的同行评审的结果，“ NEES地震工程研究设备，第2阶段”。该设备将安装在位于Lehigh University的ATLSS工程研究中心，并将利用现有的强底（372平方米的372平方米），现有的多向反应墙（一端高15.2 m高，在32 m的一端，在32 m的距离上，在12.2 m到9.1 m至9.1 m至6.1 m至6.1 m至6.1 m至6.1 m），现有的机械测试，现有的机械效果，现有的机械测试，现有的效率为现有的，即投机。该奖项提供了以下设备：（1）两个2050 kN的动态执行器，用于三个400 GPM Servovalves，+/- 500毫米中风，（2）三个1500 kN动态执行器，用于三个400 GPM ServoLLVES，+/- 500 mm Stroke，（3）10 400 gpm servor servo-flof-Rate-servo and Servo and Servo and（4）储罐和蓄能器将使强大的地面运动效应能够持续30秒以上，（6）液压系统修改，（7）具有实时混合控制软件包的数字8通道控制系统，（8）数字视频触发器保护系统，包括数字高质量的高质量摄像机，网络视频摄像机，数字服务器，数据服务器，数据服务器，越来越高的网络访问服务器，（9）采集系统和（10）高级传感器，包括基于无线MEMS的加速度计，压电传感器（应变和加速度测量）和光纤应变量仪。实验设施允许进行多个实时地震测试，并结合实时分析模拟，以研究大规模结构组件，结构亚组合和超级组件（系统）的地震行为，并通过动态执行器，反应壁和强层的合并使用。该实验设施还旨在支持开发新的混合测试方法，用于大规模结构的多个方向实时测试，包括多核结构的混合测试，其中与此类测试相关的子结构在NEES网络连接的不同地理位置。利哈伊大学（Lehigh University）将将这种大规模的实时多个方向测试设施整合到其研究计划中，并在本科和研究生课程中，通过现场和基于网络的材料为外部研究人员提供培训机会，以及主持人访问学者。