A static loading test with high spatial resolution measurements was performed for an RC flexural wall. Its deformation mechanics up to rebar yielding were investigated to find that flexural and anchorage deformation components are dominant and that increase in stress in the compression area at the critical section due to the diagonal crack occurrence is an essential phenomenon to estimate the deformations. The corresponding phenomenon was then well simulated quantitatively by assuming the concrete in the compression area sustains instead the moment of tensile rebars released due to the diagonal crack occurrence.
