Experimental Dataset From Full‐Scale Near‐Collapse Tests on Two‐Storey, Two‐Bay Masonry‐Infilled Reinforced Concrete Frames With Timber‐Based Reinforced Concrete‐Timber Panel Seismic Retrofit

This study describes a dataset from an experimental campaign investigating the quasi‐static cyclic lateral response of two full‐scale, two‐storey, two‐bay reinforced concrete (RC) frames with masonry infills representative of mid‐20th century European construction practice. The nominally identical specimens were tested in both as‐built and retrofitted configurations. The dataset aims to provide new experimental evidence on the investigation of the effectiveness of a cross‐laminated timber (CLT)‐based retrofit system, in which the external masonry wythe is replaced by a CLT panel connected to the RC frame through a glulam subframe and dissipative fasteners, while the internal wythe is retained to ensure compatibility with finishing layers. The campaign comprises snap‐back tests to characterize initial dynamic properties and quasi‐static cyclic tests conducted up to near‐collapse conditions. The dataset includes actuator forces and displacements, local deformations of masonry infills and CLT panels, relative slip at connections and material characterization tests. The work presented aims at contributing to the calibration and validation of numerical/analytical models and, possibly, to the development of guidelines for integrated seismic and energy renovation of existing infilled RC framed buildings.