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:2021:10.1061/(ASCE)EM.1943-7889.0001935,
author = {Thiers-Moggia, R and Malaga, Chuquitaype C},
doi = {10.1061/(ASCE)EM.1943-7889.0001935},
journal = {Journal of Engineering Mechanics - ASCE},
title = {Effect of base-level inerters on the higher mode response of uplifting structures},
url = {http://dx.doi.org/10.1061/(ASCE)EM.1943-7889.0001935},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Allowing slender structures to uplift has been used as an efficient means of controlling their seismic response. Often-times rocking structures will exhibit some degree of flexibility and cannot be adequately represented by single-mass or rigid systems. In this paper, we examine the dynamic response of multi-storey flexible rocking bodies equipped with inerters at their ground level. Firstly, numerical models of inerter-equipped rocking structures are formulated and validated. These models are used to assess the effect of the inerter on the elastic deformations and base rotations demands of a set of structures ranging from 3 to 9 storeys. Importantly, we examine the interaction between impact forces and higher vibration modes and evaluate the effectiveness of the inerter in controlling the associated acceleration demands and increased bending moments along the height. The efficiency of the inerter was not found to be affected by practical variations of the stiffness of the rocking surface. Although the inerter increased the moment demands at the first level, the proposed strategy successfully controlled seismic demands along the height of the structure.
AU  - Thiers-Moggia,R
AU  - Malaga,Chuquitaype C
DO  - 10.1061/(ASCE)EM.1943-7889.0001935
PY  - 2021///
SN  - 0733-9399
TI  - Effect of base-level inerters on the higher mode response of uplifting structures
T2  - Journal of Engineering Mechanics - ASCE
UR  - http://dx.doi.org/10.1061/(ASCE)EM.1943-7889.0001935
ER  -
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