The results of tests of confined masonry walls with h/l ratio equal to 1, 15 made at scale 1:1, 5 with three different masonry-tie connection details are presented. Resistance envelopes obtained during the tests performed under cyclic lateral and constant vertical load have been determined. A bilinear model of lateral resistance envelope curve is used to study the influence of detailing on the seismic behavior and to evaluate the behavior of the models. The results of the three different possible connection details are compared with each other and with those of unreinforced masonry model. It has been concluded that variations in the connection detailing between the masonry and tie columns do not influence the ultimate strength but have an important influence on the ductility of confined masonry walls. The connection type between masonry and r/c confining elements should be taken into account when determining the behavior factor for confined masonry structures.

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