TY - JOUR
T1 - Dynamic response of frame structures with shape memory alloy -magnetorheological fluid-based bracing system by nonlinear time-history analysis
AU - Zareie, Shahin
AU - Ahmad, Rafiq
AU - Zabihollah, Abolghassem
AU - Issa, Anas Salem
N1 - Funding Information:
This research received funding from NSERC Canada (Grant# NSERC RGPIN-2017-04516 ), Lab2Market, Mitacs, and the Green Construction Research and Training Center (GCRTC). The authors wish to thank the University of Alberta (U of A), the University of British Columbia (UBC), Okanagan campus, Laboratory of Intelligent Manufacturing Design and Automation (LIMDA Lab) at U of A, and the Applied Laboratory for Advanced Materials and Structures (ALAMS), at UBC, Okanagan campus.
Funding Information:
This research received funding from NSERC Canada (Grant# NSERC RGPIN-2017-04516), Lab2Market, Mitacs, and the Green Construction Research and Training Center (GCRTC). The authors wish to thank the University of Alberta (U of A), the University of British Columbia (UBC), Okanagan campus, Laboratory of Intelligent Manufacturing Design and Automation (LIMDA Lab) at U of A, and the Applied Laboratory for Advanced Materials and Structures (ALAMS), at UBC, Okanagan campus. We would like to express our deepest appreciation to Prof. M. Shahria Alam, Dr. Rudolf Seethaler, Prof. Abbas Milani, and Prof. Homayoun Najjaran at UBC, Okanagan campus. The technical help received from Bossy Durwin, Ray Seida, and Aria Fani, Aydin Raeis Hosseiny, Dr. Farshad Hedayati Dezfuli, Dr. Farshad Zahmatkesh, Dr. Sarven Akcelyan is much appreciated. Finally, Alireza Zareie and Farbia Hemmati are also acknowledged for their support.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/11
Y1 - 2021/11
N2 - Bracing systems have been used for decades to enhance the structural integrity of the buildings against seismic loadings. Recently, studies have been conducted to explore the magnetorheological fluid (MRF) applications and the shape memory alloy (SMA) in bracing systems to improve their performance and functionality for structural stability under seismic loadings. In this study, SMA-based and MRF-based bracing systems are utilized to develop a new hybrid bracing system named the SMA-MRF-based bracing system. This hybrid system portraits the advantages of both systems. It is a state-of-art bracing system with controllable recovery ability and tunable energy dissipation capacity. To study its effect on the buildings' performance, a numerical model of a two-story frame is developed by the Open System for Earthquake Engineering Simulation (OpenSees) software. Then, nonlinear time-history analysis is performed to compare the modeled frame's results with and without the SMA-based, the MRF-based, and the SMA-MRF-based bracing systems under three simulated ground motion profiles. The comparison between drifts of all frames shows that using the SMA-MRF-based bracing system reduces the drift ratio by 50% and up to 85% compared to the structure without bracing.
AB - Bracing systems have been used for decades to enhance the structural integrity of the buildings against seismic loadings. Recently, studies have been conducted to explore the magnetorheological fluid (MRF) applications and the shape memory alloy (SMA) in bracing systems to improve their performance and functionality for structural stability under seismic loadings. In this study, SMA-based and MRF-based bracing systems are utilized to develop a new hybrid bracing system named the SMA-MRF-based bracing system. This hybrid system portraits the advantages of both systems. It is a state-of-art bracing system with controllable recovery ability and tunable energy dissipation capacity. To study its effect on the buildings' performance, a numerical model of a two-story frame is developed by the Open System for Earthquake Engineering Simulation (OpenSees) software. Then, nonlinear time-history analysis is performed to compare the modeled frame's results with and without the SMA-based, the MRF-based, and the SMA-MRF-based bracing systems under three simulated ground motion profiles. The comparison between drifts of all frames shows that using the SMA-MRF-based bracing system reduces the drift ratio by 50% and up to 85% compared to the structure without bracing.
KW - Magnetorheological fluid
KW - Nonlinear time-history analysis
KW - OpenSees
KW - Shape memory alloy
KW - Smart bracing system
KW - Structural dynamic behavior
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U2 - 10.1016/j.jobe.2021.102914
DO - 10.1016/j.jobe.2021.102914
M3 - Article
AN - SCOPUS:85109435328
SN - 2352-7102
VL - 43
JO - Journal of Building Engineering
JF - Journal of Building Engineering
M1 - 102914
ER -