Stockdale, G, Milani, G and Sarhosis, V orcid.org/0000-0002-8604-8659 (2019) Irrecoverable collapse time for a fixed-hinge dry-stack arch under constant horizontal acceleration. In: AIP Conference Proceedings. 15th International Conference on of Computational Methods in Sciences and Engineering (ICCMSE 2019), 01-05 May 2019, Rhodes, Greece. AIP Publishing
Abstract
The collapse of dry-stack masonry arches results from the transformation of a static system to a mechanical state through the development of mechanical joints. The traditional failure condition is this mechanization through the formation of four-hinges in a kinematically admissible configuration. The first-order analysis of an arche’s seismic capacity is obtained through limit analysis (LA) approaches. One approach is the equilibrium assessment of the kinematic theorem through the use of a kinematic collapse load calculator (KCLC). Utilizing a custom KCLC developed and validated from an experimental arch, with the added control of the single degree-of-freedom rotations, an analytic solution is developed between the applied acceleration and the minimum time duration required for collapse. The collapse multiplier and arch centroid data is recorded for all the admissible conditions that exist in the spatial deformation propagation. From this information, the work required to collapse the arch under kinematic equilibrium is established and utilized to decompose the static and kinematic energy contributions. The time-displacement domain is then defined from the resulting kinematic energy of the overloaded arch and used to evaluate the time where the kinematic energy exceeds the remaining work required for the loss of the kinematically admissible condition. This results in a simple analytical function linking excess static acceleration with a time limit of recovery.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | The following article has been published by AIP Conference Proceedings. After it is published, it will be found at https://doi.org/10.1063/1.5138009. This article is protected by copyright. All rights reserved. |
Keywords: | masonry; arches; earthquake engineering; dynamic loading |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 May 2019 13:36 |
Last Modified: | 27 Jan 2020 15:56 |
Status: | Published |
Publisher: | AIP Publishing |
Identification Number: | 10.1063/1.5138009 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146058 |