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

Gei, Massimiliano ORCID: https://orcid.org/0000-0003-3869-7504 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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Abstract

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:	18 Nov 2024 15:00
URI:	https://orca.cardiff.ac.uk/id/eprint/114272

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