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{Thiers-Moggia:2020:10.1016/j.ijmecsci.2020.105927,
author = {Thiers-Moggia, R and Málaga-Chuquitaype, C},
doi = {10.1016/j.ijmecsci.2020.105927},
journal = {International Journal of Mechanical Sciences},
pages = {1--15},
title = {Dynamic response of post-tensioned rocking structures with inerters},
url = {http://dx.doi.org/10.1016/j.ijmecsci.2020.105927},
volume = {187},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Post-tensioned rocking systems have proved to be highly effective in controlling structural damage during strong ground motions. However, recent events have highlighted the importance of looking at both thestructural and non-structural components within a holistic framework. In this context, the high rotations and accelerations associated with the rocking motion can cause significant non-structural damage and affect the performance and functionality of the entire system. In this paper, we examine analytically the fundamental dynamics of post-tensioned rocking structures and investigate the bene fits of using supplemental rotationalinertia to reduce their seismic demands and improve their overall performance. The newly proposed strategy employs inerters, a mechanical device that develops a resisting force proportional to the relative acceleration between its terminals. Analyses conducted for a wide range of acceleration pulses and real pulse-like groundmotions show that post-tensioned structures equipped with inerters consistently experience lower demands and have reduced probabilities of exceeding limit states typically associated with damage. Importantly, thenew vibration control strategy advanced in this paper opens the door for an expedient modification of the fundamental dynamic response of rocking systems without altering their geometry.
AU  - Thiers-Moggia,R
AU  - Málaga-Chuquitaype,C
DO  - 10.1016/j.ijmecsci.2020.105927
EP  - 15
PY  - 2020///
SN  - 0020-7403
SP  - 1
TI  - Dynamic response of post-tensioned rocking structures with inerters
T2  - International Journal of Mechanical Sciences
UR  - http://dx.doi.org/10.1016/j.ijmecsci.2020.105927
UR  - https://www.sciencedirect.com/science/article/pii/S0020740320305191?via%3Dihub
UR  - http://hdl.handle.net/10044/1/80516
VL  - 187
ER  -
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