To provide a connection structure for the sheathing board in form capable of easily carrying out the connection work in the form when connecting the sheathing boards and the sheathing board and the form tie used for the connection structure.
By mutually butting against corners or sides, in a plurality of sheathing boards 3 in which form tie contact faces 31 spherically recessed on the outside face of the corner or the outside face of the sides are formed, the form tie contact faces 31 of the sheathing board 3 are combined at the butted part, semi-spherically hollowed form tie fitting parts 4 are formed. By fixedly fastening a separator 6 arranged in a state crossing a concrete filling space 2 and the form tie 7 having a shape fitting to the shape of the fitting part 4 of the form tie by a screw system through the penetration part 5 formed in the center of the form tie fitting part 4, the form tie 7 is pressed with onto each form tie fitting part 4. In this way, a plurality of sheathing boards 3 are connected.
Ken Takada
Yoshihito Shimizu