engleski

Testing of R/C frames with masonry infill of various strength

This paper presents parts of the results of the Croatian project "Seismic design of infilled frames". Within this part we have investigated the contribution of various types of masonry infill to the behaviour of “strong” R/C frames. Ten one-bay, one storey R/C frames were built in a scale 1:2, 5 and subsequently infilled with masonry blocks of various strength properties. The masonry blocks used were: high strength hollow clay brick blocks, medium strength hollow clay brick blocks and low strength lightweight AAC blocks. Three frames infilled with each masonry type and one additional bare R/C frame were tested under constant vertical and cyclic lateral loading. The experimental results are presented in the form of observed failure types, shear deformations, hysteresis loops and load-displacement envelope curves. The results show that masonry infill strength influenced the maximum lateral load and energy dissipation capacity of the "frame-wall structure" while deformation capacity remained the same.

reinforced concrete infilled frame; masonry infill; experimental testing; hysteretic behaviour

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