Testing of Irregular Stone Masonry Strengthened with Cross-Laminated Timber

The paper presents the outcomes of an experimental campaign investigating the in-plane behavior of stone masonry walls reinforced with cross-laminated timber (CLT) panels fixed to the masonry by using steel rods and adhesives. Timber panels are intended to be positioned only on the internal side of the building walls, to preserve the integrity of the external façades and for better durability. The campaign is part of a broader project that already saw testing (from connections to full-scale walls) of clay brick masonry strengthened with timber panels fixed to the masonry by using screw fasteners inserted dry. The research phase presented herein comprised 1) shear testing of timber-masonry connections fixed with epoxy-based resins and 2) in-plane diagonal compression testing of as-built and retrofitted masonry wallets to evaluate the shear capacity of the walls with and without the strengthening.