Imperial College London
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Dr Christian Malaga-Chuquitaype

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 5007c.malaga Website CV

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

322Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kibriya:2018:10.1016/j.soildyn.2018.09.036,
author = {Kibriya, L and Malaga, Chuquitaype C and Kashani, M and Alexander, N},
doi = {10.1016/j.soildyn.2018.09.036},
journal = {Soil Dynamics and Earthquake Engineering},
pages = {826--837},
title = {Nonlinear dynamics of self-centring rocking steel frames using finite element models},
url = {http://dx.doi.org/10.1016/j.soildyn.2018.09.036},
volume = {115},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Rocking post-tensioned steel frames capitalise on the use of rocking joints, and unbonded post-tensioning strands to provide self-centring action. Investigations on the complex and unconventional nonlinear dy- namics of tied rocking steel frames, exclusive of supplemental damping methods, are presently limited. Increasing levels of energy-dissipation reduce the probability of observing nonlinear dynamic phenomena such as co-existing (high/low) amplitude responses at and around the system’s nonlinear resonance. To this end, a finite element (FE) modelling framework is presented, validated and extended to multi-storey steel buildings. It is shown that the simulation strategies proposed enable an accurate representation of the complex nonlinear dynamics of self-centring structures, over a wide range of excitation frequencies and amplitudes. The methodology, applied to multi-storey steel frames, captures the presence of sub-harmonic resonances and higher-modes. It is also demonstrated that the additional demands observed in the rocking columns are the consequence of the asymmetry of the member boundary conditions.
AU  - Kibriya,L
AU  - Malaga,Chuquitaype C
AU  - Kashani,M
AU  - Alexander,N
DO  - 10.1016/j.soildyn.2018.09.036
EP  - 837
PY  - 2018///
SN  - 0267-7261
SP  - 826
TI  - Nonlinear dynamics of self-centring rocking steel frames using finite element models
T2  - Soil Dynamics and Earthquake Engineering
UR  - http://dx.doi.org/10.1016/j.soildyn.2018.09.036
UR  - https://www.sciencedirect.com/science/article/pii/S0267726118305013?dgcid=author
UR  - http://hdl.handle.net/10044/1/65143
VL  - 115
ER  -
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