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RESTORING AN OLD PENETENTIARY IN PALERMO, ITALY

Historical renovation using composite beams and shear connectors

THE CHALLENGE

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The prison in Palermo is a protected monument, so any restoration work has to use materials and construction techniques that are sympathetic to the original build. During restoration work in 2016, one of the key challenges was to restore the metal structure, while making sure that any beam connections stayed true to the heritage of the building.

 

THE SOLUTION

Hilti X-HVB 95 shear connectors were used to build a composite beam constructed from S275 structural steel, C25/30 concrete slabs and Hi-bond composite deck.

The original beams were cast into a concrete ring along the perimeter of the slab, with seams made from reinforced concrete bars. The slab was also made even more solid by anchoring on the contour walls.

This all increased the slab’s capacity to divide up any horizontal movements and to protect against seismic activity.

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