Numerical modelling options for cracked masonry buildings

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Title: Numerical modelling options for cracked masonry buildings
Authors: Moradabadi, Ehsan
Laefer, Debra F.
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Date: 9-Jul-2014
Abstract: In most numerical modelling of buildings, there is an assumption that the structure is undamaged. However, with historic buildings, defects often exist. Failing to incorporate such damage may cause an unconservative estimation of a building’s response. Nowhere is this more critical than in the case of urban tunnelling where hundreds of unreinforced masonry structures may be impacted by ground movements. This paper examines the effectiveness and limitations of four numerical approaches in the modelling of existing discontinuities, in the form of masonry cracking when compared to traditional finite element methods. The comparative methods include a micro-poly method, a distinct element method, a discontinuity deformation method, and a combined continuum-interface method. Particular attention is paid to the ease of model implementation, the availability of input data, applicability of crack modelling, and the ability to define the initial state of the structure as part of the model. The methods are compared to each other and finite element modelling. Relative qualitative assessments are provided as to their applicability for modelling damaged masonry.
Funding Details: European Research Council
Type of material: Conference Publication
Keywords: Pre-existing damageMicro-poly methodsDistinct element methodsDiscontinuity deformation methodMesoscopic modelling
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Language: en
Status of Item: Peer reviewed
Conference Details: 9th International Masonry Conference 2014, Guimarães, Portugal, 7 - 9 July, 2014
Appears in Collections:Civil Engineering Research Collection

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