In order to develop precast concrete pile which has compressive ductility, static uniaxial compressive test was conducted using precast concrete pile specimens. Some of the specimens are precast concrete solid pile with unbonded steel pipe. In the result, precast concrete solid pile with unbonded steel pipe had ductile behavior, ultimate strain of specimens was more than 4.0 %. Furthermore, compressive capacities of the specimens are evaluated using existing formulae. In the result, the existing formulae underestimated the compressive capacities of test results.
