CUED Publications database

Dynamics of in-plane arch rocking: An energy approach

Dejong, MJ and Ochsendorf, JA (2010) Dynamics of in-plane arch rocking: An energy approach. Proceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics, 163. pp. 179-186. ISSN 1755-0777

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This study employs an analytical model to describe the rocking response of a masonry arch to in-plane seismic loading. Through evaluation of the rate of energy input to the system, the model reveals the ground motions that cause maximum rocking amplification. An experimental investigation of small-scale masonry arches subjected to past earthquake time histories is used to evaluate the analytical model and to explore arch rocking behaviour. The results demonstrate that rocking amplification can occur, but is highly sensitive to slight variations in the ground motion. Thus, the accuracy to which the arch response can be predicted is brought into perspective. The concept that the primary impulse of an expected ground motion is fundamentally important in predicting arch collapse is evaluated in light of the developed energy approach. Finally, a statistical method is proposed for predicting the probability of arch collapse during seismic loading.

Item Type: Article
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:38
Last Modified: 08 Apr 2021 07:27
DOI: 10.1680/eacm.2010.163.3.179