1 / 7

Fast Hybrid Test Platform for Seismic Performance Evaluation of Structural Systems

George E. Brown, Jr. Network for Earthquake Engineering Simulation. Fast Hybrid Test Platform for Seismic Performance Evaluation of Structural Systems. P.I.s: P. Benson Shing Enrico Spacone University of Colorado at Boulder. Computer Model. Test Specimen. Actuator. Actuator.

ramona-gomez
Download Presentation

Fast Hybrid Test Platform for Seismic Performance Evaluation of Structural Systems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. George E. Brown, Jr. Network for Earthquake Engineering Simulation Fast Hybrid Test Platform for Seismic Performance Evaluation of Structural Systems P.I.s: P. Benson Shing Enrico Spacone University of Colorado at Boulder Colorado-NEES

  2. Computer Model Test Specimen Actuator Actuator Actuator Shear Wall Ground Shaking Objectives • Develop a reaction-wall type testing system to simulate earthquake response of structures in real time. • The system integrates model-based simulation with physical testing using substructuring techniques. • The system can be operated via the Internet to allow teleparticipation by remote users and to control tests at other sites with high-rate data exchange. Approach • Use of high-performance, high-speed hydraulic actuators and digital control system. • Develop efficient and robust computation and control schemes. • Develop advanced simulation models. Impact Provide efficient testing capability for evaluation of large-scale structural systems. Colorado-NEES

  3. Major Equipment • 3-channel digital controller and 48-channel data-acquisition system with sampling rates of 1 KHz. • Computer for model-based simulation. • One 220-kip, 6-in. stroke actuator with 250-gpm servo-valve. • Two 110-kip, 5-in. stroke actuators with 180-gpm servo-valves. Colorado-NEES

  4. Colorado-NEES

  5. PC -OpenSees -Integration Routine SCRAMNet Digital Control System VME Bus Controller PC Ethernet SCRAMNet DSP D/A A/D Valve Drivers Actuators (3) Signal Conditioners Measuring Devices Digital Encoders Digital Displacement Transducers (3) Ethernet NEESpop Ethernet SCRAMNet Ethernet PC’s for Video Cameras Video Cameras (3) Internet Colorado-NEES

  6. Information for SI • Use SCRAMNet to share memory among local PC’s and digital control system for hybrid test simulation. SCRAMNet allows almost instantaneous memory access (1 microsecond). • Use SCRAMNET to share information among different test sites for linked tests via NEESpop. Desired information exchange rate is 1 KHz with 20 channels of data. • Use Ethernet (100Base-TX) for non-time-critical information sharing in the local area network. • Allow remote users to run pretest analysis with a resident program via the Internet. • Allow remote users to set up test parameters and data channels to monitor via the Internet. Colorado-NEES

  7. Questions for SI • What is NEESpop? • Can NEESpop fulfill the needs described in the previous slide? • What do equipment suppliers and software developers need to know to integrate software, PC’s, and digital control system with the NEESpop? • What type of interface software will be developed by SI for teleparticipation? Colorado-NEES

More Related