Experimental investigation of progressive instability and collapse of no-tension brickwork pillars. (15th December 2018)

• Record Type: Journal Article
• Authors: Gei, Massimiliano; Misseroni, Diego
• Is Part Of: International journal of solids and structures. Volume 155(2018)
• Page Start: 81
• Page End: 88
• Publication Date: 2018-12-15
• Subjects: Masonry -- No-tension material -- Photoelasticity -- Limit load -- Buckling -- Eccentric load; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2018.07.010
• Languages: English
• ISSNs: 0020-7683

Abstract

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.