C.R. WILLIS, M.C. GRIFFITH and S.J. LAWRENCE
The University of Adelaide SPL Consulting Pty Ltd, The University of Newcastle
This paper presents the results of an experimental investigation into the one-way horizontal bending behaviour of unreinforced masonry (URM) subject to static out-of-plane loading. The experimental study included:
• masonry material tests to quantify the primary failure mechanisms
contributing to the horizontal bending strength of URM walls for
‘line’ and ‘stepped’ failure modes; and,
• static tests on small wallettes subject to horizontal bending in order to study the influence of vertical compressive stress on the load-deflection behaviour. The static tests were conducted in a vertical orientation and incorporated four different levels of vertical compressive stress. A greater understanding of the mechanisms contributing to the out-ofplane flexural strength of masonry under vertical axial loading will aid in the development of an improved analytical procedure for diagonal bending.