| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation hole concrete form that facilitates form removal and precisely form a ventilation hole, and an installation structure for a concrete form for continuous footing.SOLUTION: There is provided a ventilation hole concrete form 5 used to form a ventilation hole 2a in a recessed shape having its top opened on a continuous footing 1 of a building, The ventilation hole concrete form includes a concrete form body 6 having a pair of side plates 6b facing each other and a bottom plate 6a, and a brace material 7 arranged detachably between the pair of side plates 6b so as to hold the pair of side plates 6b at a predetermined interval, and the brace material 7 is removed so as to allow the pair of side plate 6b to flex inward. |
