Energy Dissipation of Reinforced Concrete Wall Combined with Buckling-Restrained Braces Subjected to Near- and Far-Fault Earthquakes

Energy Dissipation of Reinforced Concrete Wall Combined with Buckling-Restrained Braces Subjected... The energy approach is useful to understand the behavior of structural systems subjected to strong ground motions. In this research, the energy responses from the buckling-restrained braced frames as well as dual systems subjected to the NF and FF earthquakes are investigated and compared. The dual systems consist of reinforced concrete wall and buckling- restrained braces within steel frame adjacent to the wall. The considered structures are designed according to the current codes using the response spectrum analysis. Nonlinear numerical models were created in which the walls were made of fiber element model. The inelastic energy, input energy, kinetic energy, elastic strain energy and damping energy demand were investigated by implementing nonlinear time-history analysis. Also, the inelastic energy distribution pattern along the height was studied. The results show that for both near-field and far-field sets, the maximum inelastic energy dissipation demand belongs to the BRBFs compared to dual system. The wall existence caused the maximum inelastic energy demand to reduce and also leads to more balanced inelastic energy demand along the height of the structure. Keywords Energy dissipation  Reinforced concrete wall  Buckling-restrained braced frame  Near-fault Far-fault 1 Introduction The BRBFs are relatively new structures that can http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Iranian Journal of Science and Technology, Transactions of Civil Engineering Springer Journals

Energy Dissipation of Reinforced Concrete Wall Combined with Buckling-Restrained Braces Subjected to Near- and Far-Fault Earthquakes

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Shiraz University
Subject
Engineering; Civil Engineering
ISSN
2228-6160
eISSN
2364-1843
D.O.I.
10.1007/s40996-018-0109-0
Publisher site
See Article on Publisher Site

Abstract

The energy approach is useful to understand the behavior of structural systems subjected to strong ground motions. In this research, the energy responses from the buckling-restrained braced frames as well as dual systems subjected to the NF and FF earthquakes are investigated and compared. The dual systems consist of reinforced concrete wall and buckling- restrained braces within steel frame adjacent to the wall. The considered structures are designed according to the current codes using the response spectrum analysis. Nonlinear numerical models were created in which the walls were made of fiber element model. The inelastic energy, input energy, kinetic energy, elastic strain energy and damping energy demand were investigated by implementing nonlinear time-history analysis. Also, the inelastic energy distribution pattern along the height was studied. The results show that for both near-field and far-field sets, the maximum inelastic energy dissipation demand belongs to the BRBFs compared to dual system. The wall existence caused the maximum inelastic energy demand to reduce and also leads to more balanced inelastic energy demand along the height of the structure. Keywords Energy dissipation  Reinforced concrete wall  Buckling-restrained braced frame  Near-fault Far-fault 1 Introduction The BRBFs are relatively new structures that can

Journal

Iranian Journal of Science and Technology, Transactions of Civil EngineeringSpringer Journals

Published: May 28, 2018

References

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