Abstract
The purpose of this series of experiments is to investigate the energy absorption capacity of H-shaped steel columns subjected to earthquake loads. In Part 1, the results of tests subjected to monotonic loading and cyclic loading with constant deflection amplitudes combined with axial loads are shown, and the following features are pointed out : 1. The relationships between energy absorption capacity E_<CM> and plastic deflection capacity D_<MAX> subjected to monotonic loadings are represented approximately by Eq. (1). 2. Under the cyclic loading with constant deflection amplitudes in which lateral deformation is developed in first cycle, the energy absorption capacity E_C is related to the plastic deflection amplitude D by a linear law on the log-log scale as given by Eq. (2). 3. Since the point (D_<MAX>, E_<CM>) on the log-log scale may be located on the line given by Eq. (2) of the same shaped member, substitution of Eq. (1) into Eq. (2) provides Eq. (3).
