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

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:155

Article

Gei, Massimiliano¹  Misseroni, Diego² 

[1] Cardiff Univ, Sch Engn, Cardiff CF24 3AA, S Glam, Wales

[2] Univ Trento, Dept Civil Environm & Mech Engn, Via Mesiano 77, I-38123 Trento, Italy

关键词: Masonry;    No-tension material;    Photoelasticity;    Limit load;    Buckling;    Eccentric load;   

DOI  :  10.1016/j.ijsolstr.2018.07.010

来源: Elsevier

【 摘 要 】

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. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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