Minimum Uplift Horizontal Acceleration of the Single-Nave Barrel Vault and the Rocking Frame

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Haris Alexakis, Nicos Makris

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Abstract


This paper examines and compares the minimum horizontal acceleration that is needed to initiate uplift of the single-nave barrel vault and of the rocking frame which are the two most common masonry structural systems used to bridge a span. The paper concludes that regardless of the direction of the rupture of the buttresses, the single-nave barrel vault uplifts with a seismic coefficient, ε, that is always smaller than the slenderness of the buttresses, s=b/h. In contrast, the rocking frame always uplifts with a seismic coefficient, ε=b/h, regardless of the mass of its prismatic epistyle; therefore, the rocking frame has a superior seismic performance than the single-nave barrel vault.


Keywords


stone arches, buttresses, articulated structures, energy methods, limit state analysis, earthquake engineering

Citation


Alexakis, H., Makris, N. (2018). Minimum Uplift Horizontal Acceleration of the Single-Nave Barrel Vault and the Rocking Frame, Vol. 4, Issue 4, p.275-288. doi: 10.4417/IJGCH-04-04-04




DOI: http://dx.doi.org/10.4417/IJGCH-04-04-04

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