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Master's Theses and Project Reports

2009

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Full-Text Articles in Architecture

Seismic Performance Of Unreinforced Masonry Walls Retrofitted With Post-Tensioning Tendons, Daniel Louis Lazzarini Jun 2009

Seismic Performance Of Unreinforced Masonry Walls Retrofitted With Post-Tensioning Tendons, Daniel Louis Lazzarini

Master's Theses and Project Reports

Unreinforced masonry (URM) structures have historically been regarded as structurally unsound in response to seismic events. The tendency for URM walls to collapse out-of-plane in a brittle manner is continually cause for concern. Retrofit of these walls is necessary in order to prevent severe damage and injury to occupants.

This paper is concerned with the retrofit of unreinforced masonry (URM) walls in response to out-of-plane loading. A retrofit design was developed and verified through structural testing. The selected retrofit technique incorporates vertical coring of URM walls to allow for the insertion of a single post-tensioning (PT) tendon. Tendons are spaced ...