Leaderboard

I am not sure if i picked up your question, but normally the confining reinforcement at the ends of confined masonry is to transfer the loads in tension compression. The Confined masonry in an earthquake act as compression strut and there are equations and guidance in FEMA to work out the capacities of these diagonal strut members. We do these checks very commonly here in New Zealand for the seismic analysis of the existing confined masonry structures. I would recommend you to have a read of the document i am attaching. Its called C8 and its part of the documentation used for the detailed seismic analysis of structures here in New Zealand. Section_C8-Unreinforced_Masonry_Buildings.pdf