Journal of Iranian Architecture Studies

Journal of Iranian Architecture Studies

Enhancement of Lateral Stability Threshold of Barrel Vault Supported by Walls

Document Type : Original

Author
Farzin Izadpanah
Assistant Professor, Department of Architecture, Shahid Bahonar University of Kerman
10.22052/jias.2026.258003.1458
Abstract
The configuration, which refers to the mass distribution within masonry structures consisting of barrel vaults and walls, plays a crucial role in the primary mode of collapse for these structures, specifically the out-of-plane failure. The present article focuses on designing an appropriate configuration for such rural structural types in Iran, with the objective of enhancing their lateral stability threshold. To this end, the study initially examines the impact of three traditional stabilization techniques employed by master builders, including the thickening of the haunch of the arch, utilization of inclined piers, and implementation of seat platforms, on the lateral stability of the structure. Then, employing these methods and choosing an appropriate angle of embrace for the arch, efforts are made to enhance the lateral stability of current structures, which is below 0.1g, to levels of 0.35g, 0.5g, and 0.65g. Additionally, the cross-sectional areas of the structures and their designs are suggested for optimal planning and the selection of fitting architectural styles. The findings indicate that the goals for lateral stability may be realized through the various options presented in this paper. The utilization of inclined piers, useful for optimization in some proportions, may also increase the threshold of lateral stability in other cases. The responses are also very sensitive to the selection of geometry of sections based on other aforementioned techniques. The alternative configurations presented here can be implemented by designers.
Keywords
Configuration of Masonry Structures
Lateral Stability
Arch and Pier
Limit state Analysis
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Journal of Iranian Architecture Studies
Volume 15, Issue 29
September 2026
Pages 85-107