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Experimental investigation of progressive instability and collapse of no-tension brickwork pillars

Gei, Massimiliano ORCID: and Misseroni, Diego 2018. Experimental investigation of progressive instability and collapse of no-tension brickwork pillars. International Journal of Solids and Structures 155 , pp. 81-88. 10.1016/j.ijsolstr.2018.07.010

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The progressive instability behaviour of compressed dry-stone rectangular pillars loaded with an eccentric load is assessed experimentally and compared with the theory. Photoelastic compression tests were designed and executed on polymethyl-methacrylate brickwork pillars to reveal, i) the load-bearing capacity of the structure and the load-lateral displacement relation, ii) the effect of the eccentricity in the stress distribution along the structure, iii) the collapse mode of the system at high eccentricity. By employing a no-tension material model with linear behaviour in compression, new analytical, closed-form expressions for deformed shape of the structure, location of the neutral axis in a generic cross section and axial displacement are provided. The photoelastic stress analysis outcome fully confirms the analytical predictions for both low and high eccentricity loadings.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0020-7683
Date of First Compliant Deposit: 29 August 2018
Date of Acceptance: 17 July 2018
Last Modified: 11 Nov 2023 17:52

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