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Stresses in Circular Cylindrical Masonry Shells

Stresses in Circular Cylindrical Masonry Shells There are innumerable examples of masonry vaults all over the world constructed centuries ago. Perhaps, the builders of those times had some empirical approaches in arriving them. The mechanics of vaults was explored only after the advent of classical theories of structures and elasticity. Later, several researchers contributed to the understanding of vaults. Masonry vaults continue to be adopted in modern construction, both for architectural purposes and to minimize the use of steel and concrete. Also, it uses minimal supporting system. The recent work on stress analysis of masonry cylindrical shells at Indian Institute of Science needs a special mention, whereas the analysis was based on two assumptions, viz. (i) the material is isotropic and (ii) a simple boundary condition at the springing level with no shear. However, it is well known that brick masonry is orthotropic in behaviour due to the nature of disposition of bricks along and across the bed joints. The orthotropic strength and elastic properties of various brick masonry are also now available. Hence, the present study looks at two aspects: (i) adopting the orthotropic properties for the analysis and (ii) modified boundary conditions by considering zero longitudinal displacements at the springing level. The studies were aimed at trying to understand and compare the stress resultants with that of the results from the earlier studies. It has been found that the results are somewhat different, and it is suggested that such an approach is better suited for the current material properties and practices. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India):Series A Springer Journals

Stresses in Circular Cylindrical Masonry Shells

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References (18)

Publisher
Springer Journals
Copyright
Copyright © The Institution of Engineers (India) 2022
ISSN
2250-2149
eISSN
2250-2157
DOI
10.1007/s40030-022-00637-1
Publisher site
See Article on Publisher Site

Abstract

There are innumerable examples of masonry vaults all over the world constructed centuries ago. Perhaps, the builders of those times had some empirical approaches in arriving them. The mechanics of vaults was explored only after the advent of classical theories of structures and elasticity. Later, several researchers contributed to the understanding of vaults. Masonry vaults continue to be adopted in modern construction, both for architectural purposes and to minimize the use of steel and concrete. Also, it uses minimal supporting system. The recent work on stress analysis of masonry cylindrical shells at Indian Institute of Science needs a special mention, whereas the analysis was based on two assumptions, viz. (i) the material is isotropic and (ii) a simple boundary condition at the springing level with no shear. However, it is well known that brick masonry is orthotropic in behaviour due to the nature of disposition of bricks along and across the bed joints. The orthotropic strength and elastic properties of various brick masonry are also now available. Hence, the present study looks at two aspects: (i) adopting the orthotropic properties for the analysis and (ii) modified boundary conditions by considering zero longitudinal displacements at the springing level. The studies were aimed at trying to understand and compare the stress resultants with that of the results from the earlier studies. It has been found that the results are somewhat different, and it is suggested that such an approach is better suited for the current material properties and practices.

Journal

Journal of The Institution of Engineers (India):Series A – Springer Journals

Published: Sep 1, 2022

Keywords: Shells; Domes; Vaults; Masonry; Orthotropic; Stress analysis

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