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A platform for research: civil engineering, architecture and urbanism
Large displacement analysis of dry-jointed masonry structures subjected to settlements using rigid block modelling
HighlightsA 2D rigid block model for masonry structures subjected to settlement is presented.Large displacements are modelled by a sequential procedure based on limit analysis.The contact problem is formulated as a linear programming problem using gap functions.Experimental tests were carried out for validation.Collapse displacements at moving supports are successfully predicted.
AbstractA discrete element model is proposed for large displacement static analysis of dry-jointed masonry structures subjected to foundation settlements. The numerical model is a two-dimensional assemblage of rigid blocks interacting at no-tension, frictional contact interfaces with infinite compressive strength. The static contact problem associated to the proposed model is formulated as a linear mathematical programming problem and an incremental procedure is implemented to take into account large displacements. Experimental tests were carried out on small scale panels with opening subjected to imposed settlements to validate the proposed model. Comparisons in terms of failure modes and maximum allowable support displacements just before the collapse are presented. An experimental case study from the literature related to a masonry arch on spreading support is also analyzed for validation. On the basis of the obtained results, the accuracy and the computational efficiency of the formulation adopted are discussed.
Large displacement analysis of dry-jointed masonry structures subjected to settlements using rigid block modelling
HighlightsA 2D rigid block model for masonry structures subjected to settlement is presented.Large displacements are modelled by a sequential procedure based on limit analysis.The contact problem is formulated as a linear programming problem using gap functions.Experimental tests were carried out for validation.Collapse displacements at moving supports are successfully predicted.
AbstractA discrete element model is proposed for large displacement static analysis of dry-jointed masonry structures subjected to foundation settlements. The numerical model is a two-dimensional assemblage of rigid blocks interacting at no-tension, frictional contact interfaces with infinite compressive strength. The static contact problem associated to the proposed model is formulated as a linear mathematical programming problem and an incremental procedure is implemented to take into account large displacements. Experimental tests were carried out on small scale panels with opening subjected to imposed settlements to validate the proposed model. Comparisons in terms of failure modes and maximum allowable support displacements just before the collapse are presented. An experimental case study from the literature related to a masonry arch on spreading support is also analyzed for validation. On the basis of the obtained results, the accuracy and the computational efficiency of the formulation adopted are discussed.
Large displacement analysis of dry-jointed masonry structures subjected to settlements using rigid block modelling
Portioli, Francesco (author) / Cascini, Lucrezia (author)
Engineering Structures ; 148 ; 485-496
2017-06-29
12 pages
Article (Journal)
Electronic Resource
English