Design of Shake Table Tests of Multi-Leaf Masonry Walls Before and After Retrofitting

== Abstract ==

A  significant  proportion  of  the  built  heritage  in  historic  centres  is  constituted  by 
rubble  stone  masonry  structures.  Collapses  by  leaf  separation  and  disaggregation  observed 
after earthquakes highlight  their dramatic vulnerability, especially under out-of-plane loads. 
Nevertheless, their dynamic response still needs to be fully investigated and their capacity may 
be overestimated by assessment approaches based on rigid-body mechanics. Effective 
retrofitting solutions are also needed to protect human lives and safeguard the built heritage, 
while ensuring the conservation of its architectural value. This paper describes the design of a 
shake table investigation on stone masonry walls, whose materials and arrangement reproduce 
those surveyed in the  villages of central Italy struck by the 2016-2017 earthquake sequence. 
The  test  setup  was  conceived  to  induce  out-of-plane  vertical  bending  under  earthquake  base 
motion and investigate the dynamic response of multi-leaf rubble stone masonry and the gain 
in seismic capacity that can be achieved with mortar-based composite reinforcements, designed 
to  prevent  the  leaf  separation  and  disaggregation  of  the  wall  without  compromising  its  fair 
face.

== Full document ==
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