In situ full-scale tests for old masonry elements: The out-of-plane response

摘要

Regarding to old masonry response under seismic actions, destructive testing campaign wasrnplanned. It was directed to rubble masonry, with particularly reference to L’Aquila old masonry type. Thern6th April 2009 Earthquake, strongly damaged L’Aquila historical centre; in the hearth of the so-called “redrnzone”, a corner palace permanent damaged was chosen. The main masonry features are: no ordinary setting,rnsmall size of the stones, regular flattens made in bricks, no transversal links and stones contact; these marks arernrepresentative of the Italian smallest historical centres and European one.rnConsolidation approach detection is obviously hard; therefore, in order to research and obtain an effectivernstrategy of intervention, strictly connected to the above masonry type, seven panels were selected. Five strengtheningrnapproaches were pointed out; starting from the common injections until more advanced methods like “thernreticolatus”, without overlook the tradition techniques. This paper will be focused on the out-of-plane answer;rnin relation to consider the first collapse mode the primary cause of building break-down, during earthquake.