Multi-Dimensional Mixed-Mode Hybrid Simulation, Control and Applications
Nakata, Narutoshi
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https://hdl.handle.net/2142/83345
Description
Title
Multi-Dimensional Mixed-Mode Hybrid Simulation, Control and Applications
Author(s)
Nakata, Narutoshi
Issue Date
2007
Doctoral Committee Chair(s)
Spencer, Billie F., Jr.
Elnashai, Amr S.
Department of Study
Civil Engineering
Discipline
Civil Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Language
eng
Abstract
The fourth and final task is to validate the hybrid simulation framework through the study of the three-dimensional behavior of a skew RC bridge. First, extensive analyses of skew bridges are conducted to prepare for the hybrid simulation. Subsequently, a small-scale RC pier is experimentally tested as a physical substructure, while the rest of the piers and the bridge deck are analyzed using a finite element model. The mixed-mode control capability is employed to impose on the RC pier simultaneous gravity loads in the axial direction and earthquake-induced displacements in the other directions. The experimental results show that the multi-dimensional hybrid simulation with versatile six degrees-of-freedom loading capability is a promising approach that provides a reliable means for evaluation of the seismic performance of large and complex structural systems.
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