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From point clouds to geometry generation for the detailed micro-modelling of masonry structures

Lookup NU author(s): Nicko Kassotakis, Dr Vasilis Sarhosis, Professor Jon Mills

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This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by International Masonry Society, 2018.

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Abstract

Over the last few decades a significant effort has been put on the development of detailed numerical models to predict the mechanical behavior of historical masonry. However, an issue faced in the numerical modelling of historic and damaged masonry structures is the development of accurate models to represent their real geometries. This paper presents the first stage of a research program which aims to develop an automatic approach which uses point clouds to generate the detailed geometry of masonry. Such geometry can then be inputted into micro-models for the structural analysis of masonry structures. In the proposed approach, point clouds generated using the Structure-from-Motion (SfM) pipeline were converted into watertight meshes and then voxelized. Models were represented as a sum of cuboid-blocks jointed by zero thickness interfaces. The developed methodology was applied to derive geometries of two small scale masonry specimens constructed in the laboratory and a full-scale masonry arch bridge.


Publication metadata

Author(s): Kassotakis N, Sarhosis V, Mills J, D'Altri A, di Miranda S, Castellazzi G

Editor(s): G. Milani, A. Taliercio and S. Garrity

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 10th International Masonry Conference

Year of Conference: 2018

Online publication date: 09/07/2018

Acceptance date: 12/06/2018

Date deposited: 12/06/2018

Publisher: International Masonry Society

URL: http://www.10imc.com/


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