The Chi-Chi earthquake caused significant loss of property and life. This phenomenon disclosed many design-related in the construction industry. The first condition that we would like to determine is whether the earthquake affected the final strength of newly-cast concrete if the fresh concrete was cast just before the earthquake struck, particularly when the fresh concrete was cast just before its initial or final setting. This study aims to investigate the effects of an earthquake on fresh concrete. Twenty specimens were fabricated to investigate the effects of strong ground motion on concrete. Of the 20 specimens, 9 were lightweight-concrete-filled CFT (Concrete Filled Tube) columns, 9 were CFT columns filled with concrete of normal weight, and the remaining two were pure steel hollow tubes. The specimens were leveled on a shaking table to simulate the strong ground motion caused by an earthquake. The test reveals that the lightweight-concrete-filled CFT columns are unaffected by the quake. However, the normal weight concrete filled CFT columns are slightly affected by the quake.