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The Influence of Material Properties and the Geometrical Parameters of the Operating Arch on the Stability of Vaults Original Article, D31 Valibeig N, Esmaeili M, Ansar A Journal. Civil Eng. Urban. 4(2): 199-205. 2014 ABSTRACT: One of the key elements in architecture is vault. Because timbers are locally available only in certain parts of Iran, the vaults used to be built in various arched forms especially in traditional buildings. Identifying the structural characteristics of such vaults may reveal the innovative approaches adopted by the Persian architects who tried to design and build the vaults in based on a sustainable architecture; a kind of architecture that was, from one hand, adaptable to climate, location and local materials, and capable, from the other hand, to meet the users' needs. The materials used in and the geometric characteristics of the arches are two determining factors in vault stability. The major part of the past research has focused on examining the strength of the arches statically. The present study, however, aimed to analyze the impact of materials and geometric characteristics on the vault resistance. To this end, the behavior of geometric arches in different forms and sizes along with various materials were studied. The identified generate arches were drawn by design soft wares and then analyzed by resistance analyzers. The results clearly revealed the effective role of geometric parameters, materials and thickness of arch base in vault stability. Keywords: Sustainable architecture; Stability; Generate arch; Geometry; Material . منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(2)%20199-205,%202014.pdf J. Civil Eng. Urban., 4 (2) 199-205, 2014.pdf