CUED Publications database

Co-seismic rotation and displacement of a structure with a basement sited in liquefiable soil

Hughes, FE and Madabhushi, SPG (2019) Co-seismic rotation and displacement of a structure with a basement sited in liquefiable soil. In: UNSPECIFIED pp. 2898-2905..

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Abstract

© 2019 Associazione Geotecnica Italiana, Rome, Italy. The inclusion of basements can provide uplift forces during earthquake induced liquefaction thereby reducing the overall settlement of structures. When the vertical forces acting on the structure are not co-linear, due to building geometry, inter-storey drift, rocking or rotation of the structure, this uplift force increases the moment acting on the structure. A series of dynamic geotechnical centrifuge tests has been conducted to investigate the co-seismic behaviour of structures with basements sited in liquefiable soil. Particle image velo-cimetry (PIV) was undertaken using GeoPIV-RG to obtain co-seismic displacements. In this paper, the stability of such structures during the liquefied period will be investigated, and compared to the behaviour of structures on shallow foundations without basements. It will be shown that a structure with a basement can suffer severe rotations in strong earthquake events, although the overall settlements are reduced.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 25 Mar 2020 20:24
Last Modified: 18 Aug 2020 13:07
DOI: