TY - GEN
T1 - Fiber-based modeling of reinforced HPFRCC hinge regions
AU - Tariq, H.
AU - Jampole, E.
AU - Bandelt, M. J.
N1 - Publisher Copyright:
© Copyright 2018 by Earthquake Engineering Research Institute All rights reserved.
PY - 2018
Y1 - 2018
N2 - Over the last two decades, researchers have conducted various experimental investigations of structural components made with High-Performance Fiber-Reinforced Cementitious Composites (HPFRCC) for proof-of-concept seismic applications. Engineered Cementitious Composites (ECC), one type of HPFRCC material, have improved the damage resistance of reinforced concrete elements. Experimental research of reinforced ECC (R/ECC) components have shown higher strength, ductility, and energy dissipation capacity as compared to traditional reinforced concrete components. Developing sophisticated numerical models to predict the nonlinear response of reinforced ECC components can improve the confidence of engineers in using the material, and enhance its practical applications. This paper discusses the calibration of fiber-based models that are used to simulate the response of reinforced ECC beams under various deformation histories. The goal of the calibration is to ensure that the model can capture the component level behavior which includes global force-deformation response. The accuracy of the calibration procedure is evaluated by comparing the numerical parameters with experimental ones in terms of maximum strength, stiffness degradation, and energy dissipation capacity. The numerical results show strong agreement with experimental specimens. Recommendations are provided to calibrate the simulated response of reinforced HPFRCC members subjected to various deformation histories.
AB - Over the last two decades, researchers have conducted various experimental investigations of structural components made with High-Performance Fiber-Reinforced Cementitious Composites (HPFRCC) for proof-of-concept seismic applications. Engineered Cementitious Composites (ECC), one type of HPFRCC material, have improved the damage resistance of reinforced concrete elements. Experimental research of reinforced ECC (R/ECC) components have shown higher strength, ductility, and energy dissipation capacity as compared to traditional reinforced concrete components. Developing sophisticated numerical models to predict the nonlinear response of reinforced ECC components can improve the confidence of engineers in using the material, and enhance its practical applications. This paper discusses the calibration of fiber-based models that are used to simulate the response of reinforced ECC beams under various deformation histories. The goal of the calibration is to ensure that the model can capture the component level behavior which includes global force-deformation response. The accuracy of the calibration procedure is evaluated by comparing the numerical parameters with experimental ones in terms of maximum strength, stiffness degradation, and energy dissipation capacity. The numerical results show strong agreement with experimental specimens. Recommendations are provided to calibrate the simulated response of reinforced HPFRCC members subjected to various deformation histories.
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M3 - Conference contribution
AN - SCOPUS:85085512441
T3 - 11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy
SP - 7437
EP - 7447
BT - 11th National Conference on Earthquake Engineering 2018, NCEE 2018
PB - Earthquake Engineering Research Institute
T2 - 11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018
Y2 - 25 June 2018 through 29 June 2018
ER -