Experimental characterisation of as-built and retrofitted timber-masonry connections under monotonic, cyclic and dynamic loading

Article Engineering, Civil

An analytical model describing the in-plane behaviour of timber diaphragms strengthened with plywood panels

Michele Mirra et al.

Summary: A proposed analytical model accurately predicts the in-plane behavior and dissipative properties of timber floors retrofitted with plywood panels, starting from the load-slip equation for a single screw and deriving the floor's response, including backbone curve and pinching cycles, through comparison with tested full-scale diaphragms.

ENGINEERING STRUCTURES (2021)

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Article Engineering, Civil

Comparing In-Plane Equivalent Shear Stiffness of Timber Diaphragms Retrofitted with Light and Reversible Wood-Based Techniques

Michele Mirra et al.

Summary: This study proposes a uniform and simple method based on the calculation of the secant stiffness of the floors at reference drifts for timber diaphragms strengthening techniques. The results offer indicative values of equivalent shear stiffness for each considered technique, contributing to a more aware and reliable use and design of wood-based retrofitting solutions for existing timber diaphragms.

PRACTICE PERIODICAL ON STRUCTURAL DESIGN AND CONSTRUCTION (2021)

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Article Construction & Building Technology

Optimizing Seismic Capacity of Existing Masonry Buildings by Retrofitting Timber Floors: Wood-Based Solutions as a Dissipative Alternative to Rigid Concrete Diaphragms

Michele Mirra et al.

Summary: This study explores the optimization of retrofitting existing timber floors with dissipative strengthening using plywood panel overlays. The results show that this method significantly improves the seismic performance of buildings, compared to rigid floors which only localize dissipation in walls.

BUILDINGS (2021)

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Article Engineering, Geological