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The effect of edge valency on the load resistance of single-layer reticulated cylindrical shells

Kolakkattil, R., Tsavdaridis, K. D. ORCID: 0000-0001-8349-3979 & Sanjeevi, A. J. (2022). The effect of edge valency on the load resistance of single-layer reticulated cylindrical shells. Journal of Constructional Steel Research,

Abstract

The arrangement of members plays a crucial role in determining the resistance of reticulated cylindrical shells, in addition to rise-to-span ratio, cross-section of the members, rigidity of the joints, and support conditions. Although studies on the comparison of shell structures with different configurations are available, the effect of the member arrangement on the performance of reticulated shell structures based on the valency of elements was never investigated before. This paper investigates the effect of edge valency on the load resistance of shell structures by studying the behaviour of four cylindrical shell configurations with different edge valencies of vertices and faces. The limit load of the shell structures - with different rise-to-span ratios, length-to-span ratios, support conditions, load patterns, and different magnitudes of initial geometric imperfection – is calculated based on geometrical and material non-linear analyses. The results show that the increase in the edge valency of the vertices increases the overall resistance of single-layer reticulated cylindrical shells with rigid joints. In addition to edge valency, member orientation plays a prominent role in determining the overall resistance of single-layer reticulated shell structures with longitudinal edges supported. The data on edge valency help to rearrange the members within a structure so that the overall resistance is not compromised, while the designer aims for an economical solution.

Publication Type: Article
Additional Information: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher Keywords: Reticulated cylindrical shells, parameterisation, valency, non-triangulation, limit load, global stability
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Departments: School of Science & Technology > Engineering
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