A seismic vulnerability analysis carried out on the Stylite Tower at Umm ar-Rasas, Jordan, which is a UNESCO World Heritage Site, is presented in this paper. The monument, a unique survived example of stylite towers in the Middle East, presents evidence of structural damage due to earthquakes. The study was based on preliminary investigations, which consisted in Schmidt-hammer tests executed on stone blocks and passive tromography tests on the ground. Two models were implemented for the tower. In the first one, the tower was considered as a rigid structure supported by means of an elasto-perfect plastic cushion at the base. In the second one, a finite element model was setup, with solid elements characterized by a Drucker-Prager yield criterion. In both cases a push over analysis was performed, which resulted in a very low resistance of the tower to seismic actions. The work is part of a preservation effort which will include the design of a retrofit intervention.

Seismic analysis of the Stylite Tower at Umm ar-Rasas

Clemente P.;Saitta F.
2019

Abstract

A seismic vulnerability analysis carried out on the Stylite Tower at Umm ar-Rasas, Jordan, which is a UNESCO World Heritage Site, is presented in this paper. The monument, a unique survived example of stylite towers in the Middle East, presents evidence of structural damage due to earthquakes. The study was based on preliminary investigations, which consisted in Schmidt-hammer tests executed on stone blocks and passive tromography tests on the ground. Two models were implemented for the tower. In the first one, the tower was considered as a rigid structure supported by means of an elasto-perfect plastic cushion at the base. In the second one, a finite element model was setup, with solid elements characterized by a Drucker-Prager yield criterion. In both cases a push over analysis was performed, which resulted in a very low resistance of the tower to seismic actions. The work is part of a preservation effort which will include the design of a retrofit intervention.
Masonry tower
Stylite tower
Stability of towers
Seismic behavior of towers
Push over analysis
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/58343
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