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In several European countries, the building structures comprise reinforce-concrete (RC) frames infilled with unreinforced masonry panel. The infill panels, considered as non-structural elements, have a significant effect on the global seismic response of RC frame structures by increasing the lateral stiffness. The failure mode planned by the capacity design procedure of the EUROCODE 8 is not ensured in presence of strong infill panels. To quantify the effect of the infill panel on the global behaviour of the building structures, a campaign of tests concerning one-bay masonry infilled frames is being performed under cyclic loading and two pseudodynamic tests have been applied to the 4-storey RC test building. Several numerical models have been applied to the infilled frame structure. The two modelling levels (local and global) are used in a complementary way producing a better understanding of the resistance and failure mechanisms and identification of the parameters of the global models used under dynamic loading. The response of the 4-storey-frames is compared to the numerical results of the regularly infilled buildings and the soft-storey buildings.

Additional information

Authors: COMBESCURE D, JRC Ispra (IT);PEGON P, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 4 ème Colloque National de Genie Parasismique, St Rèmy lès Chevrouse (FR), April 10-12 1996
Availability: Available from (1) as Paper EN 39684 ORA
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