Large-Scale High Performance Testing Facility towards Real-Time Hybrid Seismic Testing

小乔治·E·布朗。地震工程模拟网络(NEES)计划是美国国家科学基金会重大研究设备计划资助的一个项目。根据NEES计划，这项合作协议将在纽约布法罗州立大学布法罗分校建立一个NEES大型实验室实验设备基地，用于实时混合地震测试。布法罗大学将设计、建造、安装、委托和运营一个模块化和高度灵活的动态测试设施，用于大规模岩土和结构地震工程实验。该设备将在2004年9月30日或更早之前投入使用，并将作为国家共享的NEES设备现场进行管理，具有远程观测和远程操作能力，以在2014年前为大型结构系统提供新的地震工程研究测试能力。这个NEES设备站点将通过大学的vBNS连接连接到NEES协作室，具有千兆位以太网能力。将通过NEES联盟协调与国家经济共同体共享使用信息的获取和培训。该奖项是对提交给NSF 00-6计划征集项目“NEES：地震工程研究设备”的建议进行同行评审的结果。本合同提供下列设备：(1)三个100吨级动态执行机构，配备双400 GPM伺服阀，+/-500 mm冲程，(2)两个200吨级静态执行机构，15个GPM伺服阀，+/-500 mm行程，(3)液压分配管路和歧管，(4)调压室和蓄能器，(5)两个每台185 GPM的液压泵，用于连续运行，与蓄能器组一起，可提供1600 GPM的最大流量30秒，(6)数字控制系统，(7)静态和动态试验测试控制包，(8)升级和扩展现有的数据采集系统，以适应远程观测、远程操作、远程传输和远程存储；(9)数据管理和处理系统，以适应实时系统、数据采集、存储、分发和分析以及测试仪器；(10)用于远程观测和远程操作能力的设备，以便通过高性能的网络连接来观察和控制设备上的实验；(11)视频成像设备，最终目标是串流实时视频；以及(12)传感器和测量设备。该实验设施允许多种配置的全尺寸部件试验与实时数值模拟相结合，以研究大型结构系统的地震性能，这些结构系统使用了致动器、反作用墙、坚固地板和振动台(一个可移动的)。此外，该设备将用于开发新的混合测试算法，用于近全规模/大规模测试。该大学已承诺提供400万美元用于扩建和改善位于布法罗大学布法罗校区凯特霍尔的结构工程和地震模拟实验室，以容纳升级和新的设备。这一扩建包括一个新的研究实验室区域，具有坚固的地板和反应墙，用于培训和数据处理的控制室和办公室，服务区，存储和办公空间，以及一台新的40吨起重机。布法罗大学将把这种大规模、高性能的测试设备整合到其研究计划以及本科生和研究生课程中，通过现场课程为外部研究人员提供培训机会，接待访问学者，并开发基于网络的NEES设备远程操作模拟器。

The George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program is a project funded under the NSF Major Research Equipment Program. This cooperative agreement, under the NEES Program, establishes a NEES large-scale laboratory experimentation equipment site towards real-time hybrid seismic testing at the University at Buffalo, The State University of New York, Buffalo, NY. The University at Buffalo will design, construct, install, commission, and operate a modular and highly flexible dynamic testing facility for large-scale geotechnical and structural earthquake engineering experimentation. This equipment will be operation by September 30, 2004 or earlier 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 collaboratory through the University's vBNS connection, with Gigabit Ethernet capabilities. Shared-use access and training with be coordinated through the NEES Consortium. This award is an outcome of the peer review of proposals submitted to program solicitation NSF 00-6, "NEES: Earthquake Engineering Research Equipment." The following equipment is provided under this award: (1) Three 100 ton dynamic actuators equipped with dual 400 gpm servovalves, +/- 500 mm stroke, (2) two 200 ton static actuators with 15 gpm servovalves, +/- 500 mm stroke, (3) hydraulic distribution lines and manifolds, (4) surge tank and accumulators, (5) two hydraulic pumps of 185 gpm each for continuous operation which along with the accumulator banks can provide maximum flow of 1600 gpm for 30 seconds, (6) digital control system, (7) test control package for both static and dynamic tests, (8) upgrade and expansion of existing data acquisition system to accommodate teleobservation, teleoperation, teletransmission, and telestorage, (9) data management and processing system to accommodate real-time systems, data acquisition, storage, distribution and analysis, and test instrumentation, (10) equipment for teleobservation and teleoperation capabilities so that experiments on the equipment will be observable and controllable via high performance network connections, (11) video imaging equipment with the eventual goal of streaming real-time video, and (12) sensors and measurement devices. The experimental facility allows for multiple configurations of full-scale component tests combined simultaneously with real-time numerical simulations to investigate the seismic behavior of large structural systems incorporating use of actuators, reactions walls, strong floor, and shake tables (one moveable). Further, the equipment will be used to develop new hybrid testing algorithms for near full-scale/large-scale testing. The University has committed $4 million for expansion and infrastructure improvements of the Structural Engineering and Earthquake Simulation Laboratory in Ketter Hall on the University at Buffalo campus to house the upgraded and new equipment. This expansion includes a new research laboratory area with a strong floor and reaction walls, control rooms and offices for training and data processing, service areas, storage and office spaces, and a new 40 metric ton crane. The University at Buffalo will integrate this large-scale, high performance testing equipment into its research program and undergraduate and graduate curricula, provide training opportunities for outside researchers through on site courses, host visiting scholars, and develop a web-based teleoperation simulator of the NEES equipment.