alexa Cost-competitive Steel Devices for Seismic Retrofitting of RC Frames: Model Identification and Nonlinear Analysis

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Cost-competitive Steel Devices for Seismic Retrofitting of RC Frames: Model Identification and Nonlinear Analysis

several cost-competitive seismic devices can be specifically designed and obtained from commercial steel profiles through conventional steel work procedure.  One of these devices, often referred to as “Steel Slit Shape” (SSS) devices, can be obtained by carving a simple I-wide flange section profile stub in order to turn the web panel into a batch of steel stripes characterised by a low yielding limit and, hence, prone to exhibit a hysteretic response under cyclic actions with reduced exposures to local buckling phenomena, but a pronounced progressive degradation of the stiffness and strength . Therefore, these devices can be employed as dissipative devices in Y-shape eccentric braces (EB) and ideally employed for seismic retrofitting of RC frames .

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