This paper presents the results of 1/16-scale and 1/4-scale experiment
s on simple reinforced-concrete wall sections in which structural and
material failures occur. The type of load considered is axial compress
ion combined with bending. The experiments are intended to provide a s
et of well-defined test articles, boundary conditions, and response me
asurements for the study of failure and postfailure properties of rein
forced-concrete walls. Three experiments at each of two scaled eccentr
icities were performed at both scales. Measurements were made of axial
force, axial deflection, axial strain, and lateral deflection. The wa
lls buckled at the peak load but, because the stroke was controlled, t
he loads and responses were measured at postpeak. The repeatability of
the results was excellent, and the comparison between scales was also
very good. From the basic measurements, auxiliary parameters were ded
uced-for example, moment, curvature, and average axial stress and stra
in. The reliability of the results is established by their excellent r
epeatability, the agreement between the two scales, and agreement (up
to peak load) with the classic Hognestad model for combined bending an
d thrust. Because the data extend well past peak load, they are useful
for checking analytical models for failure and postfailure response.