Omar AlShawa
Sapienza University of Rome
39 Papers
37 Citations
Omar AlShawa is an academic researcher from Sapienza University of Rome. The author has contributed to research in topics: Masonry & Unreinforced masonry building. The author has an hindex of 9, co-authored 21 publications.
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Papers
The relevance of energy damping in unreinforced masonry rocking mechanisms. Experimental and analytic investigations
TL;DR: In this paper, an experimental investigation has been carried out to estimate the dissipation of kinetic energy that takes place during free oscillations, and an analytic formulation is proposed and this is compared against experimental data.
77
Out-of-Plane Seismic Response of Unreinforced Masonry Walls: Conceptual Discussion, Research Needs, and Modeling Issues
TL;DR: In this paper, the authors consider the impact of in-plane and out-of-plane forces on the response of masonry walls to seismic loads applied normal to their plane.
61
Static penetration test for historical masonry mortar
Domenico Liberatore,Nicola Masini,Luigi Sorrentino,Vito Racina,Maria Sileo,Omar AlShawa,Luca Frezza +6 more
TL;DR: In this paper, a static penetration test for historical masonry mortar is presented based on the principle of "static" penetration, where a pin is driven at constant velocity by a stepper motor controlled by a computer.
36
Effects of coseismic ground vertical motion on masonry constructions damage during the 2016 Amatrice-Norcia (Central Italy) earthquakes
Domenico Liberatore,Carlo Doglioni,Carlo Doglioni,Omar AlShawa,Simone Atzori,Luigi Sorrentino +5 more
TL;DR: In this paper, the effect of the vertical component of ground motion on a test masonry structure under recorded accelerograms was investigated on a finite-discrete element model, and a number of empirical relationships were determined between InSAR vertical displacement and macroseismic intensity or ground motion intensity measures.
36
Dynamic One-Sided Out-Of-Plane Behavior of Unreinforced-Masonry Wall Restrained by Elasto-Plastic Tie-Rods
TL;DR: In this paper, the authors show the high vulnerability of existing masonry buildings, particularly to out-of-plane local collapse mechanisms, can be prevented if facades are res...