CONSTRUCTION METHOD OF STRUCTURE

To provide a construction method of a structure capable of maintaining a smooth surface of the structure.SOLUTION: A construction method of a structure of this invention includes: disposing a curved surface frame 50 having an outer curved surface 50s running along a shape of an inner curved surface 12s so that the inner curved 12s of a structure 10 faces in a downward direction different from an upward direction in which a floating matter (an air bubble or bleeding water) of concrete emerges; installing concrete using the curved surface frame 50 to form a precast member; and thereby forming a lower member 12. The construction method further includes: disposing the lower member 12 to assume a predetermined position in which the inner curved surface 12s of the lower member 12 faces in the upward direction; and disposing an upper member 11 having an inner curved surface 11s on the lower member 12 to constitute the structure 10.SELECTED DRAWING: Figure 1 【課題】構造体の滑面を維持することができる構造体の構築方法を提供する。【解決手段】コンクリートの遊離物（気泡やブリーディング水）が出る上方向と異なる下方向を、構造体１０の内曲面１２ｓが向くように、内曲面１２ｓの形状に沿う外曲面５０ｓを有した曲面型枠５０を配置し、この曲面型枠５０を用いてコンクリートを打設してプレキャスト部材を形成し、これで下部部材１２を形成する。そして、下部部材１２の内曲面１２ｓが上方向に向く所定位置となるように下部部材１２を配置して、下部部材１２の上に、内曲面１１ｓを有する上部部材１１を配置して、構造体１０を構築する。【選択図】図１