CORE COLUMN MADE OF PRECAST CONCRETE

PURPOSE:To obtain large compression resistance and compression flexibility of a core column and to improve the adhesiveness and the unitivity of concrete by filling concrete in a cylinder formed with a steel wire wound spirally close to each other to solidify. CONSTITUTION:A core column A made of precast concrete is constructed by filling concrete 3 in a cylinder body 2 formed with a spiral steel wire 1 wound in close contact to each other to solidify. Thereby large compression resistance and compression flexibility of the core column A can be obtained because of a restriction action in the three axial compression state due to the spiraled steel wire 1 and a compression bearing action due to the close winding of the spiraled wire 1.