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CONFERENCE PROCEEDINGS
6th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2018 , 2018.y., pp. 225-230


A NOTE ON THE EQUILIBRIUM ANALYSIS OF DRAPED MASONRY ARCH
 
DOI: 10.14415/konferencijaGFS2018.021
UDC: 624.04.072.32
CC-BY-SA 4.0 license
Author : Nikolić, Dimitrije
 
 Summary:
 Equilibrium analyses of masonry arches usually consider their convex forms, such as circular, elliptical or pointed. However, besides them, there are also different concave or inflectional arches’ shapes. Therefore, the aim of this paper is to apply the thrust line theory to a basic arch of the concave form – a draped arch, which consists of two annular sectors leaning against each other, oriented oppositely in comparison to the semicircular arch. In accordance with the applied normal stereotomy, which implies generic sections perpendicular to arch’s axis, the problem of equilibrium under selfweight is analytically treated, and the closed-form expression for the thrust line is determined. Moreover, limit equilibrium state is considered, and the analytical solution for the minimum theoretical thickness of draped arch is provided.
 
 Keywords:
 thrust line, masonry arch, draped arch, minimum thickness, static approach, limit equilibrium analysis