Research on the full range stress-strain curve of autoclaved aerated concrete block masonry

Abstract

In order to find out the deformability and properties of autoclaved aerated concrete block masonry and establish its full range stress-strain curve, an experimental research was carried out on 9-groups, 27 masonry specimens in all, of short columns under axial compression. The crack and failure mode, deformation behavior and the full range stressstrain curves were obtained. The full range stress-strain curve is represented by 3-segments, the rising section is composed of a straight line and a curve, and the descending section is a single curve. The full range stress-strain curve descending segment at the peak stress. Peak compressive strain is the strain value which corresponds to the maximum bearing capacity of masonry specimen. It is a very important parameter to determine the full range stress-strain curve's shape. Convert all the measured load-displacement curves into the stress-strain curves by using non-dimensional coordinates.