Imperial College London
Portrait Picture

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{Málaga-Chuquitaype:2019:10.1007/s10518-019-00615-2,
author = {Málaga-Chuquitaype, C and Psaltakis, ME and Kampas, G and Wu, J},
doi = {10.1007/s10518-019-00615-2},
journal = {Bulletin of Earthquake Engineering},
pages = {3815--3845},
title = {Dimensionless fragility analysis of seismic acceleration demands through low-order building models},
url = {http://dx.doi.org/10.1007/s10518-019-00615-2},
volume = {17},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper deals with the estimation of fragility functions for acceleration-sensitive com- ponents of buildings subjected to earthquake action. It considers ideally coherent pulses as well as real non-pulselike ground-motion records applied to continuous building mod- els formed by a flexural beam and a shear beam in tandem. The study advances the idea of acceleration-based dimensionless fragility functions and describes the process of their formulation. It demonstrates that the mean period of the Fourier Spectrum, Tm, is associ- ated with the least dispersion in the predicted dimensionless mean demand. Likewise, peak ground acceleration, PGA-, and peak ground velocity, PGV-based length scales are found to be almost equally appropriate for obtaining efficient ‘universal’ descriptions of maxi- mum floor accelerations. Finally, this work also shows that fragility functions formulated in terms of dimensionless   -terms have a superior performance in comparison with those based on conventional non-dimensionless terms (like peak or spectral acceleration values). This improved efficiency is more evident for buildings dominated by global flexural type lateral deformation over the whole intensity range and for large peak floor acceleration levels in structures with shear-governed behaviour. The suggested dimensionless fragil- ity functions can offer a ‘universal’ description of the fragility of acceleration-sensitive components and constitute an efficient tool for a rapid seismic assessment of building con- tents in structures behaving at, or close to, yielding which form the biggest share in large (regional) building stock evaluations.
AU  - Málaga-Chuquitaype,C
AU  - Psaltakis,ME
AU  - Kampas,G
AU  - Wu,J
DO  - 10.1007/s10518-019-00615-2
EP  - 3845
PY  - 2019///
SN  - 1570-761X
SP  - 3815
TI  - Dimensionless fragility analysis of seismic acceleration demands through low-order building models
T2  - Bulletin of Earthquake Engineering
UR  - http://dx.doi.org/10.1007/s10518-019-00615-2
UR  - https://link.springer.com/article/10.1007%2Fs10518-019-00615-2
UR  - http://hdl.handle.net/10044/1/69810
VL  - 17
ER  -
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