CONSTRUCTING METHOD FOR CONCRETE STRUCTURE

PURPOSE:To facilitate the attaching work of a form by grasping a bolt through a grasping device attached to the form to keep the position of the form, and placing concrete inside the form. CONSTITUTION:A bolt 2 buried in concrete on a lower stage is grasped from the periphery of a shaft by the approaching of a grasping device 3 arranged in the lower part of a form 1 to keep the position of the form 1. On the other hand, the new bolt 2 is grasped by the upper grasping device 3. The grasping device 3 has a hemispherical cover 32 protruding into the inside of the form 1, and makes the bolt 2 pass through a bolt hole provided at the center of the cover 32, and grasps its under head part with claws. After the form 1 is set in a state where the upper bolt 2 is located in the upper part of the inside of the form 1, concrete on an upper stage is placed on the upper part of the concrete C on the lower stage to form a hemispherical recess having a new buried bolt 2 on the upper stage, and is hardened as it is. The upper and lower bolts 2 are released from grasping, and the form 1 is suspended up to make the lower grasping device 3 grasp the bolt 2 in the concrete on the upper stage, and the concrete on the upper stage is further placed.