Autoclaved lightweight concrete (ALC) panel exterior walls are widely used in Japan, because they are expected to have high deformation capacity. However, during an earthquake, not only the in-plane deformation but also the out-of-plane inertial force are likely to act on the exterior walls. In this paper, combined in-plane and out-of-plane loading tests were conducted on ALC panel exterior walls. It was found that the deflection due to the out-of-plane load resulted in the earlier bearing state when the wall deform in the in-plane direction and the damage to the ALC panel exterior wall depends on the mounting hardware.
