CUED Publications database

Lateral spreading-induced abutment rotation in the 2011 Christchurch earthquake: Observations and analysis

Haskell, JJM and Madabhushi, SPG and Cubrinovski, M and Winkley, A (2013) Lateral spreading-induced abutment rotation in the 2011 Christchurch earthquake: Observations and analysis. Geotechnique, 63. pp. 1310-1327. ISSN 0016-8505

Full text not available from this repository.

Abstract

A series of strong earthquakes near Christchurch, New Zealand, occurred between September 2010 and December 2011, causing widespread liquefaction throughout the city's suburbs. Lateral spreading developed along the city's Avon River, damaging many of the bridges east of the city centre. The short-to medium-span bridges exhibited a similar pattern of deformation, involving back-rotation of their abutments and compression of their decks. By explicitly considering the rotational equilibrium of the abutments about their point of contact with the rigid bridge decks, it is shown that relatively small kinematic demands from the laterally spreading backfill soil are needed to initiate pile yielding, and that this mode of deformation should be taken into account in the design of the abutments and abutment piles.

Item Type: Article
Uncontrolled Keywords: Case history Earthquakes Liquefaction Piles Soil/structure interaction
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:24
Last Modified: 08 Dec 2014 02:15
DOI: 10.1680/geot.12.P.174