PURPOSE:To simplify the construction by planting bolts on steel products, fastening tips of bolts protruded to the outside of a formwork with nuts to fix the formwork, placing concrete, releasing the formwork, then fixing anodic members to bolts. CONSTITUTION:After reinforcing bars are arranged, bolts 2 are planted on a stirrup 1 by welding so as to be extended to a formwork side. The formwork is fastened and fixed to bolts 2 with nuts. Concrete is placed and hardened in the formwork, then the formwork is removed. Anodic members 6 are fixed to bolts 2, and bolt caps 7 are fitted to head sections of bolts 2 to fix anodic members 6.
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