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Performance-Based Design and Real-Time Large-Scale Testing to Enable Implementation of Advanced Damping Systems
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Evaluation of Structural Control Strategies for Improving Seismic Performance of Buildings with MR Dampers Using Real-Time Large-Scale Hybrid Simulation
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DOI:10.4231/D3HM52J59
Experiment Type: Large Scale
Description: During the past decade numerous researchers have investigated the dynamic behavior of structures with magnetorheological (MR) dampers using various semiactive control laws. A majority of the conclusions focused on the superiority of semiactive controllers over passive control. Large-scale MR dampers have not been studied extensively in conjunction with semi-active control laws since only a few experiments have been conducted with large-scale dampers. The assessment of semiactive controllers however needs to be verified more rigorously by using large-scale MR dampers. In this project, real-time hybrid simulations using large-scale MR dampers are conducted to evaluate the effectiveness of various structural control strategies in enabling the seismic performance objectives of a building structure to be achieved. A prototype structure of a 3-story building is designed in accordance with the ICC code to satisfy the strength requirement, and an MR damper is installed to control the drift of the structure. Three different control strategies are considered: (1)passive control; (2) linear quadratic regulator (semi-active control); and (3) sliding mode control (semi-active control). Six ground motions scaled to the same design basis earthquake are used for the real-time hybrid simulations and statistical responses of the structure are obtained to compare the performance of each controller.
Dates: January 13, 2010 - January 14, 2010
Facility: Lehigh University, PA, United States
Equipment: View Details
Specimen Type: Large scale Magneto-Rheological (MR) damper 2 by Lord Corporation
Material: Current driver Current driver (view)
Body Body (view)
Electromagnetic coil Electromagnetic coil (view)
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Sensors: MR damper 2 Sensors
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Trial ( ? ) Repetition ( ? ) Interactive ( ? ) UnprocessedConvertedCorrectedDerived
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Tags (keywords):
  1. MR Dampers
  2. semiactivecontrol
  3. Real time hybrid simulations
Cite this work:
Yunbyeong Chae, Thomas Marullo, James Ricles (2013). "Evaluation of Structural Control Strategies for Improving Seismic Performance of Buildings with MR Dampers Using Real-Time Large-Scale Hybrid Simulation", Network for Earthquake Engineering Simulation (distributor), Dataset, DOI:10.4231/D3HM52J59