Seismic performance of masonry-infilled r.c. frames: benefits of slight reinforcements

A general review of seismic performance of infilled R.C. frames, both for global in-plane response and local out-of-plane is here presented. Some issues related to observed interaction between masonry infills and bounding frames are highlighted and analytical methods summarized. Experimental and numerical results show that frames with slightly reinforced masonry infills generally perform better than bare frames: enhanced lateral capacity and energy dissipation provide a significantly better behaviour in terms of operational limit states and cost of repair.

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