Abstract
We propose new supporting system of base columns that have superior flexibility without failure under high axial compression. In this system, base column and its bed are divided by hemispheric surface. In this paper, we explain the mechanism and the detail of the system at first, and report its fundamental properties and restoring force characteristics obtained through an axial compression test and several shear-bending tests with axial compression. As a result, the support has sufficient compressive strength under axial compression and the proposed structural system consists of the support and the column has superior flexibility and desirable restoring force characteristics.
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