XXVII Congresso del Collegio dei Tecnici dell’Acciaio (CTA 2019)
Abstract
Steel frames with reinforced concrete infill walls (SRCWs) are an interesting structural solution
for applications in seismic areas if designed to exploit the stiffness of reinforced concrete (RC)
and the ductility and dissipative capacity of steel. Three horizontal resisting mechanisms can be
identified in SRCW: 1) contribution of the steel frame; 2) direct interactions between the steel
frame and the compression strut in the RC infill walls; 3) interactions between steel frame and the
RC infill wall through friction and shear connectors. While Eurocode 8 considers SRCWs to behave essentially as RC walls, numerical analyses demonstrated that this assumption may be far
from reality. Innovative solutions for SRCW and relevant design approaches were eventually proposed in order to achieve a structural system able to fully exploit the advantages of the steel and
RC components. In this context, the present study investigates a type of innovative modular
SRCW through numerical simulations allowing a better understanding of its structural behaviour
