Abstract:
An approach for the in-plane design of post-tensioned concrete masonry (PCM) walls with unbonded tendons is proposed. The concept of PCM walls is briefly presented, followed by a discussion of a method for prediction of the wall in-plane force-displacement response. A dynamic analysis procedure is proposed for deriving the seismic demand, notably in terms of structural displacement demand for given wall dimensions and post-tensioning layout. The seismic demand on a 5 storey PCM cantilever wall is derived by time-history analysis, and is compared with seismic demands imposed on ductile and nominally elastic reinforced concrete masonry walls of similar dimensions.